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authorpatrick <patrick@openbsd.org>2020-08-03 14:31:31 +0000
committerpatrick <patrick@openbsd.org>2020-08-03 14:31:31 +0000
commite5dd70708596ae51455a0ffa086a00c5b29f8583 (patch)
tree5d676f27b570bacf71e786c3b5cff3e6f6679b59 /gnu/llvm/clang/unittests/Format/FormatTest.cpp
parentImport LLVM 10.0.0 release including clang, lld and lldb. (diff)
downloadwireguard-openbsd-e5dd70708596ae51455a0ffa086a00c5b29f8583.tar.xz
wireguard-openbsd-e5dd70708596ae51455a0ffa086a00c5b29f8583.zip
Import LLVM 10.0.0 release including clang, lld and lldb.
ok hackroom tested by plenty
Diffstat (limited to 'gnu/llvm/clang/unittests/Format/FormatTest.cpp')
-rw-r--r--gnu/llvm/clang/unittests/Format/FormatTest.cpp15064
1 files changed, 15064 insertions, 0 deletions
diff --git a/gnu/llvm/clang/unittests/Format/FormatTest.cpp b/gnu/llvm/clang/unittests/Format/FormatTest.cpp
new file mode 100644
index 00000000000..a5a26b5c1e8
--- /dev/null
+++ b/gnu/llvm/clang/unittests/Format/FormatTest.cpp
@@ -0,0 +1,15064 @@
+//===- unittest/Format/FormatTest.cpp - Formatting unit tests -------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Format/Format.h"
+
+#include "../Tooling/ReplacementTest.h"
+#include "FormatTestUtils.h"
+
+#include "clang/Frontend/TextDiagnosticPrinter.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "gtest/gtest.h"
+
+#define DEBUG_TYPE "format-test"
+
+using clang::tooling::ReplacementTest;
+using clang::tooling::toReplacements;
+
+namespace clang {
+namespace format {
+namespace {
+
+FormatStyle getGoogleStyle() { return getGoogleStyle(FormatStyle::LK_Cpp); }
+
+class FormatTest : public ::testing::Test {
+protected:
+ enum StatusCheck { SC_ExpectComplete, SC_ExpectIncomplete, SC_DoNotCheck };
+
+ std::string format(llvm::StringRef Code,
+ const FormatStyle &Style = getLLVMStyle(),
+ StatusCheck CheckComplete = SC_ExpectComplete) {
+ LLVM_DEBUG(llvm::errs() << "---\n");
+ LLVM_DEBUG(llvm::errs() << Code << "\n\n");
+ std::vector<tooling::Range> Ranges(1, tooling::Range(0, Code.size()));
+ FormattingAttemptStatus Status;
+ tooling::Replacements Replaces =
+ reformat(Style, Code, Ranges, "<stdin>", &Status);
+ if (CheckComplete != SC_DoNotCheck) {
+ bool ExpectedCompleteFormat = CheckComplete == SC_ExpectComplete;
+ EXPECT_EQ(ExpectedCompleteFormat, Status.FormatComplete)
+ << Code << "\n\n";
+ }
+ ReplacementCount = Replaces.size();
+ auto Result = applyAllReplacements(Code, Replaces);
+ EXPECT_TRUE(static_cast<bool>(Result));
+ LLVM_DEBUG(llvm::errs() << "\n" << *Result << "\n\n");
+ return *Result;
+ }
+
+ FormatStyle getStyleWithColumns(FormatStyle Style, unsigned ColumnLimit) {
+ Style.ColumnLimit = ColumnLimit;
+ return Style;
+ }
+
+ FormatStyle getLLVMStyleWithColumns(unsigned ColumnLimit) {
+ return getStyleWithColumns(getLLVMStyle(), ColumnLimit);
+ }
+
+ FormatStyle getGoogleStyleWithColumns(unsigned ColumnLimit) {
+ return getStyleWithColumns(getGoogleStyle(), ColumnLimit);
+ }
+
+ void verifyFormat(llvm::StringRef Expected, llvm::StringRef Code,
+ const FormatStyle &Style = getLLVMStyle()) {
+ EXPECT_EQ(Expected.str(), format(Expected, Style))
+ << "Expected code is not stable";
+ EXPECT_EQ(Expected.str(), format(Code, Style));
+ if (Style.Language == FormatStyle::LK_Cpp) {
+ // Objective-C++ is a superset of C++, so everything checked for C++
+ // needs to be checked for Objective-C++ as well.
+ FormatStyle ObjCStyle = Style;
+ ObjCStyle.Language = FormatStyle::LK_ObjC;
+ EXPECT_EQ(Expected.str(), format(test::messUp(Code), ObjCStyle));
+ }
+ }
+
+ void verifyFormat(llvm::StringRef Code,
+ const FormatStyle &Style = getLLVMStyle()) {
+ verifyFormat(Code, test::messUp(Code), Style);
+ }
+
+ void verifyIncompleteFormat(llvm::StringRef Code,
+ const FormatStyle &Style = getLLVMStyle()) {
+ EXPECT_EQ(Code.str(),
+ format(test::messUp(Code), Style, SC_ExpectIncomplete));
+ }
+
+ void verifyGoogleFormat(llvm::StringRef Code) {
+ verifyFormat(Code, getGoogleStyle());
+ }
+
+ void verifyIndependentOfContext(llvm::StringRef text) {
+ verifyFormat(text);
+ verifyFormat(llvm::Twine("void f() { " + text + " }").str());
+ }
+
+ /// \brief Verify that clang-format does not crash on the given input.
+ void verifyNoCrash(llvm::StringRef Code,
+ const FormatStyle &Style = getLLVMStyle()) {
+ format(Code, Style, SC_DoNotCheck);
+ }
+
+ int ReplacementCount;
+};
+
+TEST_F(FormatTest, MessUp) {
+ EXPECT_EQ("1 2 3", test::messUp("1 2 3"));
+ EXPECT_EQ("1 2 3\n", test::messUp("1\n2\n3\n"));
+ EXPECT_EQ("a\n//b\nc", test::messUp("a\n//b\nc"));
+ EXPECT_EQ("a\n#b\nc", test::messUp("a\n#b\nc"));
+ EXPECT_EQ("a\n#b c d\ne", test::messUp("a\n#b\\\nc\\\nd\ne"));
+}
+
+TEST_F(FormatTest, DefaultLLVMStyleIsCpp) {
+ EXPECT_EQ(FormatStyle::LK_Cpp, getLLVMStyle().Language);
+}
+
+TEST_F(FormatTest, LLVMStyleOverride) {
+ EXPECT_EQ(FormatStyle::LK_Proto,
+ getLLVMStyle(FormatStyle::LK_Proto).Language);
+}
+
+//===----------------------------------------------------------------------===//
+// Basic function tests.
+//===----------------------------------------------------------------------===//
+
+TEST_F(FormatTest, DoesNotChangeCorrectlyFormattedCode) {
+ EXPECT_EQ(";", format(";"));
+}
+
+TEST_F(FormatTest, FormatsGlobalStatementsAt0) {
+ EXPECT_EQ("int i;", format(" int i;"));
+ EXPECT_EQ("\nint i;", format(" \n\t \v \f int i;"));
+ EXPECT_EQ("int i;\nint j;", format(" int i; int j;"));
+ EXPECT_EQ("int i;\nint j;", format(" int i;\n int j;"));
+}
+
+TEST_F(FormatTest, FormatsUnwrappedLinesAtFirstFormat) {
+ EXPECT_EQ("int i;", format("int\ni;"));
+}
+
+TEST_F(FormatTest, FormatsNestedBlockStatements) {
+ EXPECT_EQ("{\n {\n {}\n }\n}", format("{{{}}}"));
+}
+
+TEST_F(FormatTest, FormatsNestedCall) {
+ verifyFormat("Method(f1, f2(f3));");
+ verifyFormat("Method(f1(f2, f3()));");
+ verifyFormat("Method(f1(f2, (f3())));");
+}
+
+TEST_F(FormatTest, NestedNameSpecifiers) {
+ verifyFormat("vector<::Type> v;");
+ verifyFormat("::ns::SomeFunction(::ns::SomeOtherFunction())");
+ verifyFormat("static constexpr bool Bar = decltype(bar())::value;");
+ verifyFormat("bool a = 2 < ::SomeFunction();");
+ verifyFormat("ALWAYS_INLINE ::std::string getName();");
+ verifyFormat("some::string getName();");
+}
+
+TEST_F(FormatTest, OnlyGeneratesNecessaryReplacements) {
+ EXPECT_EQ("if (a) {\n"
+ " f();\n"
+ "}",
+ format("if(a){f();}"));
+ EXPECT_EQ(4, ReplacementCount);
+ EXPECT_EQ("if (a) {\n"
+ " f();\n"
+ "}",
+ format("if (a) {\n"
+ " f();\n"
+ "}"));
+ EXPECT_EQ(0, ReplacementCount);
+ EXPECT_EQ("/*\r\n"
+ "\r\n"
+ "*/\r\n",
+ format("/*\r\n"
+ "\r\n"
+ "*/\r\n"));
+ EXPECT_EQ(0, ReplacementCount);
+}
+
+TEST_F(FormatTest, RemovesEmptyLines) {
+ EXPECT_EQ("class C {\n"
+ " int i;\n"
+ "};",
+ format("class C {\n"
+ " int i;\n"
+ "\n"
+ "};"));
+
+ // Don't remove empty lines at the start of namespaces or extern "C" blocks.
+ EXPECT_EQ("namespace N {\n"
+ "\n"
+ "int i;\n"
+ "}",
+ format("namespace N {\n"
+ "\n"
+ "int i;\n"
+ "}",
+ getGoogleStyle()));
+ EXPECT_EQ("/* something */ namespace N {\n"
+ "\n"
+ "int i;\n"
+ "}",
+ format("/* something */ namespace N {\n"
+ "\n"
+ "int i;\n"
+ "}",
+ getGoogleStyle()));
+ EXPECT_EQ("inline namespace N {\n"
+ "\n"
+ "int i;\n"
+ "}",
+ format("inline namespace N {\n"
+ "\n"
+ "int i;\n"
+ "}",
+ getGoogleStyle()));
+ EXPECT_EQ("/* something */ inline namespace N {\n"
+ "\n"
+ "int i;\n"
+ "}",
+ format("/* something */ inline namespace N {\n"
+ "\n"
+ "int i;\n"
+ "}",
+ getGoogleStyle()));
+ EXPECT_EQ("export namespace N {\n"
+ "\n"
+ "int i;\n"
+ "}",
+ format("export namespace N {\n"
+ "\n"
+ "int i;\n"
+ "}",
+ getGoogleStyle()));
+ EXPECT_EQ("extern /**/ \"C\" /**/ {\n"
+ "\n"
+ "int i;\n"
+ "}",
+ format("extern /**/ \"C\" /**/ {\n"
+ "\n"
+ "int i;\n"
+ "}",
+ getGoogleStyle()));
+
+ // ...but do keep inlining and removing empty lines for non-block extern "C"
+ // functions.
+ verifyFormat("extern \"C\" int f() { return 42; }", getGoogleStyle());
+ EXPECT_EQ("extern \"C\" int f() {\n"
+ " int i = 42;\n"
+ " return i;\n"
+ "}",
+ format("extern \"C\" int f() {\n"
+ "\n"
+ " int i = 42;\n"
+ " return i;\n"
+ "}",
+ getGoogleStyle()));
+
+ // Remove empty lines at the beginning and end of blocks.
+ EXPECT_EQ("void f() {\n"
+ "\n"
+ " if (a) {\n"
+ "\n"
+ " f();\n"
+ " }\n"
+ "}",
+ format("void f() {\n"
+ "\n"
+ " if (a) {\n"
+ "\n"
+ " f();\n"
+ "\n"
+ " }\n"
+ "\n"
+ "}",
+ getLLVMStyle()));
+ EXPECT_EQ("void f() {\n"
+ " if (a) {\n"
+ " f();\n"
+ " }\n"
+ "}",
+ format("void f() {\n"
+ "\n"
+ " if (a) {\n"
+ "\n"
+ " f();\n"
+ "\n"
+ " }\n"
+ "\n"
+ "}",
+ getGoogleStyle()));
+
+ // Don't remove empty lines in more complex control statements.
+ EXPECT_EQ("void f() {\n"
+ " if (a) {\n"
+ " f();\n"
+ "\n"
+ " } else if (b) {\n"
+ " f();\n"
+ " }\n"
+ "}",
+ format("void f() {\n"
+ " if (a) {\n"
+ " f();\n"
+ "\n"
+ " } else if (b) {\n"
+ " f();\n"
+ "\n"
+ " }\n"
+ "\n"
+ "}"));
+
+ // Don't remove empty lines before namespace endings.
+ FormatStyle LLVMWithNoNamespaceFix = getLLVMStyle();
+ LLVMWithNoNamespaceFix.FixNamespaceComments = false;
+ EXPECT_EQ("namespace {\n"
+ "int i;\n"
+ "\n"
+ "}",
+ format("namespace {\n"
+ "int i;\n"
+ "\n"
+ "}",
+ LLVMWithNoNamespaceFix));
+ EXPECT_EQ("namespace {\n"
+ "int i;\n"
+ "}",
+ format("namespace {\n"
+ "int i;\n"
+ "}",
+ LLVMWithNoNamespaceFix));
+ EXPECT_EQ("namespace {\n"
+ "int i;\n"
+ "\n"
+ "};",
+ format("namespace {\n"
+ "int i;\n"
+ "\n"
+ "};",
+ LLVMWithNoNamespaceFix));
+ EXPECT_EQ("namespace {\n"
+ "int i;\n"
+ "};",
+ format("namespace {\n"
+ "int i;\n"
+ "};",
+ LLVMWithNoNamespaceFix));
+ EXPECT_EQ("namespace {\n"
+ "int i;\n"
+ "\n"
+ "}",
+ format("namespace {\n"
+ "int i;\n"
+ "\n"
+ "}"));
+ EXPECT_EQ("namespace {\n"
+ "int i;\n"
+ "\n"
+ "} // namespace",
+ format("namespace {\n"
+ "int i;\n"
+ "\n"
+ "} // namespace"));
+
+ FormatStyle Style = getLLVMStyle();
+ Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All;
+ Style.MaxEmptyLinesToKeep = 2;
+ Style.BreakBeforeBraces = FormatStyle::BS_Custom;
+ Style.BraceWrapping.AfterClass = true;
+ Style.BraceWrapping.AfterFunction = true;
+ Style.KeepEmptyLinesAtTheStartOfBlocks = false;
+
+ EXPECT_EQ("class Foo\n"
+ "{\n"
+ " Foo() {}\n"
+ "\n"
+ " void funk() {}\n"
+ "};",
+ format("class Foo\n"
+ "{\n"
+ " Foo()\n"
+ " {\n"
+ " }\n"
+ "\n"
+ " void funk() {}\n"
+ "};",
+ Style));
+}
+
+TEST_F(FormatTest, RecognizesBinaryOperatorKeywords) {
+ verifyFormat("x = (a) and (b);");
+ verifyFormat("x = (a) or (b);");
+ verifyFormat("x = (a) bitand (b);");
+ verifyFormat("x = (a) bitor (b);");
+ verifyFormat("x = (a) not_eq (b);");
+ verifyFormat("x = (a) and_eq (b);");
+ verifyFormat("x = (a) or_eq (b);");
+ verifyFormat("x = (a) xor (b);");
+}
+
+TEST_F(FormatTest, RecognizesUnaryOperatorKeywords) {
+ verifyFormat("x = compl(a);");
+ verifyFormat("x = not(a);");
+ verifyFormat("x = bitand(a);");
+ // Unary operator must not be merged with the next identifier
+ verifyFormat("x = compl a;");
+ verifyFormat("x = not a;");
+ verifyFormat("x = bitand a;");
+}
+
+//===----------------------------------------------------------------------===//
+// Tests for control statements.
+//===----------------------------------------------------------------------===//
+
+TEST_F(FormatTest, FormatIfWithoutCompoundStatement) {
+ verifyFormat("if (true)\n f();\ng();");
+ verifyFormat("if (a)\n if (b)\n if (c)\n g();\nh();");
+ verifyFormat("if (a)\n if (b) {\n f();\n }\ng();");
+ verifyFormat("if constexpr (true)\n"
+ " f();\ng();");
+ verifyFormat("if CONSTEXPR (true)\n"
+ " f();\ng();");
+ verifyFormat("if constexpr (a)\n"
+ " if constexpr (b)\n"
+ " if constexpr (c)\n"
+ " g();\n"
+ "h();");
+ verifyFormat("if CONSTEXPR (a)\n"
+ " if CONSTEXPR (b)\n"
+ " if CONSTEXPR (c)\n"
+ " g();\n"
+ "h();");
+ verifyFormat("if constexpr (a)\n"
+ " if constexpr (b) {\n"
+ " f();\n"
+ " }\n"
+ "g();");
+ verifyFormat("if CONSTEXPR (a)\n"
+ " if CONSTEXPR (b) {\n"
+ " f();\n"
+ " }\n"
+ "g();");
+
+ FormatStyle AllowsMergedIf = getLLVMStyle();
+ AllowsMergedIf.AlignEscapedNewlines = FormatStyle::ENAS_Left;
+ AllowsMergedIf.AllowShortIfStatementsOnASingleLine =
+ FormatStyle::SIS_WithoutElse;
+ verifyFormat("if (a)\n"
+ " // comment\n"
+ " f();",
+ AllowsMergedIf);
+ verifyFormat("{\n"
+ " if (a)\n"
+ " label:\n"
+ " f();\n"
+ "}",
+ AllowsMergedIf);
+ verifyFormat("#define A \\\n"
+ " if (a) \\\n"
+ " label: \\\n"
+ " f()",
+ AllowsMergedIf);
+ verifyFormat("if (a)\n"
+ " ;",
+ AllowsMergedIf);
+ verifyFormat("if (a)\n"
+ " if (b) return;",
+ AllowsMergedIf);
+
+ verifyFormat("if (a) // Can't merge this\n"
+ " f();\n",
+ AllowsMergedIf);
+ verifyFormat("if (a) /* still don't merge */\n"
+ " f();",
+ AllowsMergedIf);
+ verifyFormat("if (a) { // Never merge this\n"
+ " f();\n"
+ "}",
+ AllowsMergedIf);
+ verifyFormat("if (a) { /* Never merge this */\n"
+ " f();\n"
+ "}",
+ AllowsMergedIf);
+
+ AllowsMergedIf.ColumnLimit = 14;
+ verifyFormat("if (a) return;", AllowsMergedIf);
+ verifyFormat("if (aaaaaaaaa)\n"
+ " return;",
+ AllowsMergedIf);
+
+ AllowsMergedIf.ColumnLimit = 13;
+ verifyFormat("if (a)\n return;", AllowsMergedIf);
+}
+
+TEST_F(FormatTest, FormatIfWithoutCompoundStatementButElseWith) {
+ FormatStyle AllowsMergedIf = getLLVMStyle();
+ AllowsMergedIf.AlignEscapedNewlines = FormatStyle::ENAS_Left;
+ AllowsMergedIf.AllowShortIfStatementsOnASingleLine =
+ FormatStyle::SIS_WithoutElse;
+ verifyFormat("if (a)\n"
+ " f();\n"
+ "else {\n"
+ " g();\n"
+ "}",
+ AllowsMergedIf);
+ verifyFormat("if (a)\n"
+ " f();\n"
+ "else\n"
+ " g();\n",
+ AllowsMergedIf);
+
+ AllowsMergedIf.AllowShortIfStatementsOnASingleLine = FormatStyle::SIS_Always;
+
+ verifyFormat("if (a) f();\n"
+ "else {\n"
+ " g();\n"
+ "}",
+ AllowsMergedIf);
+ verifyFormat("if (a) f();\n"
+ "else {\n"
+ " if (a) f();\n"
+ " else {\n"
+ " g();\n"
+ " }\n"
+ " g();\n"
+ "}",
+ AllowsMergedIf);
+}
+
+TEST_F(FormatTest, FormatLoopsWithoutCompoundStatement) {
+ FormatStyle AllowsMergedLoops = getLLVMStyle();
+ AllowsMergedLoops.AllowShortLoopsOnASingleLine = true;
+ verifyFormat("while (true) continue;", AllowsMergedLoops);
+ verifyFormat("for (;;) continue;", AllowsMergedLoops);
+ verifyFormat("for (int &v : vec) v *= 2;", AllowsMergedLoops);
+ verifyFormat("while (true)\n"
+ " ;",
+ AllowsMergedLoops);
+ verifyFormat("for (;;)\n"
+ " ;",
+ AllowsMergedLoops);
+ verifyFormat("for (;;)\n"
+ " for (;;) continue;",
+ AllowsMergedLoops);
+ verifyFormat("for (;;) // Can't merge this\n"
+ " continue;",
+ AllowsMergedLoops);
+ verifyFormat("for (;;) /* still don't merge */\n"
+ " continue;",
+ AllowsMergedLoops);
+}
+
+TEST_F(FormatTest, FormatShortBracedStatements) {
+ FormatStyle AllowSimpleBracedStatements = getLLVMStyle();
+ AllowSimpleBracedStatements.ColumnLimit = 40;
+ AllowSimpleBracedStatements.AllowShortBlocksOnASingleLine =
+ FormatStyle::SBS_Always;
+
+ AllowSimpleBracedStatements.AllowShortIfStatementsOnASingleLine =
+ FormatStyle::SIS_WithoutElse;
+ AllowSimpleBracedStatements.AllowShortLoopsOnASingleLine = true;
+
+ AllowSimpleBracedStatements.BreakBeforeBraces = FormatStyle::BS_Custom;
+ AllowSimpleBracedStatements.BraceWrapping.AfterFunction = true;
+ AllowSimpleBracedStatements.BraceWrapping.SplitEmptyRecord = false;
+
+ verifyFormat("if (true) {}", AllowSimpleBracedStatements);
+ verifyFormat("if constexpr (true) {}", AllowSimpleBracedStatements);
+ verifyFormat("if CONSTEXPR (true) {}", AllowSimpleBracedStatements);
+ verifyFormat("while (true) {}", AllowSimpleBracedStatements);
+ verifyFormat("for (;;) {}", AllowSimpleBracedStatements);
+ verifyFormat("if (true) { f(); }", AllowSimpleBracedStatements);
+ verifyFormat("if constexpr (true) { f(); }", AllowSimpleBracedStatements);
+ verifyFormat("if CONSTEXPR (true) { f(); }", AllowSimpleBracedStatements);
+ verifyFormat("while (true) { f(); }", AllowSimpleBracedStatements);
+ verifyFormat("for (;;) { f(); }", AllowSimpleBracedStatements);
+ verifyFormat("if (true) {\n"
+ " ffffffffffffffffffffffffffffffffffffffffffffffffffffff();\n"
+ "}",
+ AllowSimpleBracedStatements);
+ verifyFormat("if (true) { //\n"
+ " f();\n"
+ "}",
+ AllowSimpleBracedStatements);
+ verifyFormat("if (true) {\n"
+ " f();\n"
+ " f();\n"
+ "}",
+ AllowSimpleBracedStatements);
+ verifyFormat("if (true) {\n"
+ " f();\n"
+ "} else {\n"
+ " f();\n"
+ "}",
+ AllowSimpleBracedStatements);
+
+ verifyFormat("struct A2 {\n"
+ " int X;\n"
+ "};",
+ AllowSimpleBracedStatements);
+ verifyFormat("typedef struct A2 {\n"
+ " int X;\n"
+ "} A2_t;",
+ AllowSimpleBracedStatements);
+ verifyFormat("template <int> struct A2 {\n"
+ " struct B {};\n"
+ "};",
+ AllowSimpleBracedStatements);
+
+ AllowSimpleBracedStatements.AllowShortIfStatementsOnASingleLine =
+ FormatStyle::SIS_Never;
+ verifyFormat("if (true) {}", AllowSimpleBracedStatements);
+ verifyFormat("if (true) {\n"
+ " f();\n"
+ "}",
+ AllowSimpleBracedStatements);
+ verifyFormat("if (true) {\n"
+ " f();\n"
+ "} else {\n"
+ " f();\n"
+ "}",
+ AllowSimpleBracedStatements);
+
+ AllowSimpleBracedStatements.AllowShortLoopsOnASingleLine = false;
+ verifyFormat("while (true) {}", AllowSimpleBracedStatements);
+ verifyFormat("while (true) {\n"
+ " f();\n"
+ "}",
+ AllowSimpleBracedStatements);
+ verifyFormat("for (;;) {}", AllowSimpleBracedStatements);
+ verifyFormat("for (;;) {\n"
+ " f();\n"
+ "}",
+ AllowSimpleBracedStatements);
+
+ AllowSimpleBracedStatements.AllowShortIfStatementsOnASingleLine =
+ FormatStyle::SIS_WithoutElse;
+ AllowSimpleBracedStatements.AllowShortLoopsOnASingleLine = true;
+ AllowSimpleBracedStatements.BraceWrapping.AfterControlStatement =
+ FormatStyle::BWACS_Always;
+
+ verifyFormat("if (true) {}", AllowSimpleBracedStatements);
+ verifyFormat("if constexpr (true) {}", AllowSimpleBracedStatements);
+ verifyFormat("if CONSTEXPR (true) {}", AllowSimpleBracedStatements);
+ verifyFormat("while (true) {}", AllowSimpleBracedStatements);
+ verifyFormat("for (;;) {}", AllowSimpleBracedStatements);
+ verifyFormat("if (true) { f(); }", AllowSimpleBracedStatements);
+ verifyFormat("if constexpr (true) { f(); }", AllowSimpleBracedStatements);
+ verifyFormat("if CONSTEXPR (true) { f(); }", AllowSimpleBracedStatements);
+ verifyFormat("while (true) { f(); }", AllowSimpleBracedStatements);
+ verifyFormat("for (;;) { f(); }", AllowSimpleBracedStatements);
+ verifyFormat("if (true)\n"
+ "{\n"
+ " ffffffffffffffffffffffffffffffffffffffffffffffffffffff();\n"
+ "}",
+ AllowSimpleBracedStatements);
+ verifyFormat("if (true)\n"
+ "{ //\n"
+ " f();\n"
+ "}",
+ AllowSimpleBracedStatements);
+ verifyFormat("if (true)\n"
+ "{\n"
+ " f();\n"
+ " f();\n"
+ "}",
+ AllowSimpleBracedStatements);
+ verifyFormat("if (true)\n"
+ "{\n"
+ " f();\n"
+ "} else\n"
+ "{\n"
+ " f();\n"
+ "}",
+ AllowSimpleBracedStatements);
+
+ AllowSimpleBracedStatements.AllowShortIfStatementsOnASingleLine =
+ FormatStyle::SIS_Never;
+ verifyFormat("if (true) {}", AllowSimpleBracedStatements);
+ verifyFormat("if (true)\n"
+ "{\n"
+ " f();\n"
+ "}",
+ AllowSimpleBracedStatements);
+ verifyFormat("if (true)\n"
+ "{\n"
+ " f();\n"
+ "} else\n"
+ "{\n"
+ " f();\n"
+ "}",
+ AllowSimpleBracedStatements);
+
+ AllowSimpleBracedStatements.AllowShortLoopsOnASingleLine = false;
+ verifyFormat("while (true) {}", AllowSimpleBracedStatements);
+ verifyFormat("while (true)\n"
+ "{\n"
+ " f();\n"
+ "}",
+ AllowSimpleBracedStatements);
+ verifyFormat("for (;;) {}", AllowSimpleBracedStatements);
+ verifyFormat("for (;;)\n"
+ "{\n"
+ " f();\n"
+ "}",
+ AllowSimpleBracedStatements);
+}
+
+TEST_F(FormatTest, ShortBlocksInMacrosDontMergeWithCodeAfterMacro) {
+ FormatStyle Style = getLLVMStyleWithColumns(60);
+ Style.AllowShortBlocksOnASingleLine = FormatStyle::SBS_Always;
+ Style.AllowShortIfStatementsOnASingleLine = FormatStyle::SIS_WithoutElse;
+ Style.BreakBeforeBraces = FormatStyle::BS_Allman;
+ EXPECT_EQ("#define A \\\n"
+ " if (HANDLEwernufrnuLwrmviferuvnierv) \\\n"
+ " { RET_ERR1_ANUIREUINERUIFNIOAerwfwrvnuier; }\n"
+ "X;",
+ format("#define A \\\n"
+ " if (HANDLEwernufrnuLwrmviferuvnierv) { \\\n"
+ " RET_ERR1_ANUIREUINERUIFNIOAerwfwrvnuier; \\\n"
+ " }\n"
+ "X;",
+ Style));
+}
+
+TEST_F(FormatTest, ParseIfElse) {
+ verifyFormat("if (true)\n"
+ " if (true)\n"
+ " if (true)\n"
+ " f();\n"
+ " else\n"
+ " g();\n"
+ " else\n"
+ " h();\n"
+ "else\n"
+ " i();");
+ verifyFormat("if (true)\n"
+ " if (true)\n"
+ " if (true) {\n"
+ " if (true)\n"
+ " f();\n"
+ " } else {\n"
+ " g();\n"
+ " }\n"
+ " else\n"
+ " h();\n"
+ "else {\n"
+ " i();\n"
+ "}");
+ verifyFormat("if (true)\n"
+ " if constexpr (true)\n"
+ " if (true) {\n"
+ " if constexpr (true)\n"
+ " f();\n"
+ " } else {\n"
+ " g();\n"
+ " }\n"
+ " else\n"
+ " h();\n"
+ "else {\n"
+ " i();\n"
+ "}");
+ verifyFormat("if (true)\n"
+ " if CONSTEXPR (true)\n"
+ " if (true) {\n"
+ " if CONSTEXPR (true)\n"
+ " f();\n"
+ " } else {\n"
+ " g();\n"
+ " }\n"
+ " else\n"
+ " h();\n"
+ "else {\n"
+ " i();\n"
+ "}");
+ verifyFormat("void f() {\n"
+ " if (a) {\n"
+ " } else {\n"
+ " }\n"
+ "}");
+}
+
+TEST_F(FormatTest, ElseIf) {
+ verifyFormat("if (a) {\n} else if (b) {\n}");
+ verifyFormat("if (a)\n"
+ " f();\n"
+ "else if (b)\n"
+ " g();\n"
+ "else\n"
+ " h();");
+ verifyFormat("if constexpr (a)\n"
+ " f();\n"
+ "else if constexpr (b)\n"
+ " g();\n"
+ "else\n"
+ " h();");
+ verifyFormat("if CONSTEXPR (a)\n"
+ " f();\n"
+ "else if CONSTEXPR (b)\n"
+ " g();\n"
+ "else\n"
+ " h();");
+ verifyFormat("if (a) {\n"
+ " f();\n"
+ "}\n"
+ "// or else ..\n"
+ "else {\n"
+ " g()\n"
+ "}");
+
+ verifyFormat("if (a) {\n"
+ "} else if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaa)) {\n"
+ "}");
+ verifyFormat("if (a) {\n"
+ "} else if constexpr (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaa)) {\n"
+ "}");
+ verifyFormat("if (a) {\n"
+ "} else if CONSTEXPR (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaa)) {\n"
+ "}");
+ verifyFormat("if (a) {\n"
+ "} else if (\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n"
+ "}",
+ getLLVMStyleWithColumns(62));
+ verifyFormat("if (a) {\n"
+ "} else if constexpr (\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n"
+ "}",
+ getLLVMStyleWithColumns(62));
+ verifyFormat("if (a) {\n"
+ "} else if CONSTEXPR (\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n"
+ "}",
+ getLLVMStyleWithColumns(62));
+}
+
+TEST_F(FormatTest, FormatsForLoop) {
+ verifyFormat(
+ "for (int VeryVeryLongLoopVariable = 0; VeryVeryLongLoopVariable < 10;\n"
+ " ++VeryVeryLongLoopVariable)\n"
+ " ;");
+ verifyFormat("for (;;)\n"
+ " f();");
+ verifyFormat("for (;;) {\n}");
+ verifyFormat("for (;;) {\n"
+ " f();\n"
+ "}");
+ verifyFormat("for (int i = 0; (i < 10); ++i) {\n}");
+
+ verifyFormat(
+ "for (std::vector<UnwrappedLine>::iterator I = UnwrappedLines.begin(),\n"
+ " E = UnwrappedLines.end();\n"
+ " I != E; ++I) {\n}");
+
+ verifyFormat(
+ "for (MachineFun::iterator IIII = PrevIt, EEEE = F.end(); IIII != EEEE;\n"
+ " ++IIIII) {\n}");
+ verifyFormat("for (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaa =\n"
+ " aaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa;\n"
+ " aaaaaaaaaaa != aaaaaaaaaaaaaaaaaaa; ++aaaaaaaaaaa) {\n}");
+ verifyFormat("for (llvm::ArrayRef<NamedDecl *>::iterator\n"
+ " I = FD->getDeclsInPrototypeScope().begin(),\n"
+ " E = FD->getDeclsInPrototypeScope().end();\n"
+ " I != E; ++I) {\n}");
+ verifyFormat("for (SmallVectorImpl<TemplateIdAnnotationn *>::iterator\n"
+ " I = Container.begin(),\n"
+ " E = Container.end();\n"
+ " I != E; ++I) {\n}",
+ getLLVMStyleWithColumns(76));
+
+ verifyFormat(
+ "for (aaaaaaaaaaaaaaaaa aaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa !=\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n"
+ " ++aaaaaaaaaaa) {\n}");
+ verifyFormat("for (int i = 0; i < aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n"
+ " bbbbbbbbbbbbbbbbbbbb < ccccccccccccccc;\n"
+ " ++i) {\n}");
+ verifyFormat("for (int aaaaaaaaaaa = 1; aaaaaaaaaaa <= bbbbbbbbbbbbbbb;\n"
+ " aaaaaaaaaaa++, bbbbbbbbbbbbbbbbb++) {\n"
+ "}");
+ verifyFormat("for (some_namespace::SomeIterator iter( // force break\n"
+ " aaaaaaaaaa);\n"
+ " iter; ++iter) {\n"
+ "}");
+ verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbbbbbbb;\n"
+ " ++aaaaaaaaaaaaaaaaaaaaaaaaaaa) {");
+
+ // These should not be formatted as Objective-C for-in loops.
+ verifyFormat("for (Foo *x = 0; x != in; x++) {\n}");
+ verifyFormat("Foo *x;\nfor (x = 0; x != in; x++) {\n}");
+ verifyFormat("Foo *x;\nfor (x in y) {\n}");
+ verifyFormat(
+ "for (const Foo<Bar> &baz = in.value(); !baz.at_end(); ++baz) {\n}");
+
+ FormatStyle NoBinPacking = getLLVMStyle();
+ NoBinPacking.BinPackParameters = false;
+ verifyFormat("for (int aaaaaaaaaaa = 1;\n"
+ " aaaaaaaaaaa <= aaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaa);\n"
+ " aaaaaaaaaaa++, bbbbbbbbbbbbbbbbb++) {\n"
+ "}",
+ NoBinPacking);
+ verifyFormat(
+ "for (std::vector<UnwrappedLine>::iterator I = UnwrappedLines.begin(),\n"
+ " E = UnwrappedLines.end();\n"
+ " I != E;\n"
+ " ++I) {\n}",
+ NoBinPacking);
+
+ FormatStyle AlignLeft = getLLVMStyle();
+ AlignLeft.PointerAlignment = FormatStyle::PAS_Left;
+ verifyFormat("for (A* a = start; a < end; ++a, ++value) {\n}", AlignLeft);
+}
+
+TEST_F(FormatTest, RangeBasedForLoops) {
+ verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}");
+ verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaa :\n"
+ " aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa, aaaaaaaaaaaaa)) {\n}");
+ verifyFormat("for (const aaaaaaaaaaaaaaaaaaaaa &aaaaaaaaa :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}");
+ verifyFormat("for (aaaaaaaaa aaaaaaaaaaaaaaaaaaaaa :\n"
+ " aaaaaaaaaaaa.aaaaaaaaaaaa().aaaaaaaaa().a()) {\n}");
+}
+
+TEST_F(FormatTest, ForEachLoops) {
+ verifyFormat("void f() {\n"
+ " foreach (Item *item, itemlist) {}\n"
+ " Q_FOREACH (Item *item, itemlist) {}\n"
+ " BOOST_FOREACH (Item *item, itemlist) {}\n"
+ " UNKNOWN_FORACH(Item * item, itemlist) {}\n"
+ "}");
+
+ // As function-like macros.
+ verifyFormat("#define foreach(x, y)\n"
+ "#define Q_FOREACH(x, y)\n"
+ "#define BOOST_FOREACH(x, y)\n"
+ "#define UNKNOWN_FOREACH(x, y)\n");
+
+ // Not as function-like macros.
+ verifyFormat("#define foreach (x, y)\n"
+ "#define Q_FOREACH (x, y)\n"
+ "#define BOOST_FOREACH (x, y)\n"
+ "#define UNKNOWN_FOREACH (x, y)\n");
+}
+
+TEST_F(FormatTest, FormatsWhileLoop) {
+ verifyFormat("while (true) {\n}");
+ verifyFormat("while (true)\n"
+ " f();");
+ verifyFormat("while () {\n}");
+ verifyFormat("while () {\n"
+ " f();\n"
+ "}");
+}
+
+TEST_F(FormatTest, FormatsDoWhile) {
+ verifyFormat("do {\n"
+ " do_something();\n"
+ "} while (something());");
+ verifyFormat("do\n"
+ " do_something();\n"
+ "while (something());");
+}
+
+TEST_F(FormatTest, FormatsSwitchStatement) {
+ verifyFormat("switch (x) {\n"
+ "case 1:\n"
+ " f();\n"
+ " break;\n"
+ "case kFoo:\n"
+ "case ns::kBar:\n"
+ "case kBaz:\n"
+ " break;\n"
+ "default:\n"
+ " g();\n"
+ " break;\n"
+ "}");
+ verifyFormat("switch (x) {\n"
+ "case 1: {\n"
+ " f();\n"
+ " break;\n"
+ "}\n"
+ "case 2: {\n"
+ " break;\n"
+ "}\n"
+ "}");
+ verifyFormat("switch (x) {\n"
+ "case 1: {\n"
+ " f();\n"
+ " {\n"
+ " g();\n"
+ " h();\n"
+ " }\n"
+ " break;\n"
+ "}\n"
+ "}");
+ verifyFormat("switch (x) {\n"
+ "case 1: {\n"
+ " f();\n"
+ " if (foo) {\n"
+ " g();\n"
+ " h();\n"
+ " }\n"
+ " break;\n"
+ "}\n"
+ "}");
+ verifyFormat("switch (x) {\n"
+ "case 1: {\n"
+ " f();\n"
+ " g();\n"
+ "} break;\n"
+ "}");
+ verifyFormat("switch (test)\n"
+ " ;");
+ verifyFormat("switch (x) {\n"
+ "default: {\n"
+ " // Do nothing.\n"
+ "}\n"
+ "}");
+ verifyFormat("switch (x) {\n"
+ "// comment\n"
+ "// if 1, do f()\n"
+ "case 1:\n"
+ " f();\n"
+ "}");
+ verifyFormat("switch (x) {\n"
+ "case 1:\n"
+ " // Do amazing stuff\n"
+ " {\n"
+ " f();\n"
+ " g();\n"
+ " }\n"
+ " break;\n"
+ "}");
+ verifyFormat("#define A \\\n"
+ " switch (x) { \\\n"
+ " case a: \\\n"
+ " foo = b; \\\n"
+ " }",
+ getLLVMStyleWithColumns(20));
+ verifyFormat("#define OPERATION_CASE(name) \\\n"
+ " case OP_name: \\\n"
+ " return operations::Operation##name\n",
+ getLLVMStyleWithColumns(40));
+ verifyFormat("switch (x) {\n"
+ "case 1:;\n"
+ "default:;\n"
+ " int i;\n"
+ "}");
+
+ verifyGoogleFormat("switch (x) {\n"
+ " case 1:\n"
+ " f();\n"
+ " break;\n"
+ " case kFoo:\n"
+ " case ns::kBar:\n"
+ " case kBaz:\n"
+ " break;\n"
+ " default:\n"
+ " g();\n"
+ " break;\n"
+ "}");
+ verifyGoogleFormat("switch (x) {\n"
+ " case 1: {\n"
+ " f();\n"
+ " break;\n"
+ " }\n"
+ "}");
+ verifyGoogleFormat("switch (test)\n"
+ " ;");
+
+ verifyGoogleFormat("#define OPERATION_CASE(name) \\\n"
+ " case OP_name: \\\n"
+ " return operations::Operation##name\n");
+ verifyGoogleFormat("Operation codeToOperation(OperationCode OpCode) {\n"
+ " // Get the correction operation class.\n"
+ " switch (OpCode) {\n"
+ " CASE(Add);\n"
+ " CASE(Subtract);\n"
+ " default:\n"
+ " return operations::Unknown;\n"
+ " }\n"
+ "#undef OPERATION_CASE\n"
+ "}");
+ verifyFormat("DEBUG({\n"
+ " switch (x) {\n"
+ " case A:\n"
+ " f();\n"
+ " break;\n"
+ " // fallthrough\n"
+ " case B:\n"
+ " g();\n"
+ " break;\n"
+ " }\n"
+ "});");
+ EXPECT_EQ("DEBUG({\n"
+ " switch (x) {\n"
+ " case A:\n"
+ " f();\n"
+ " break;\n"
+ " // On B:\n"
+ " case B:\n"
+ " g();\n"
+ " break;\n"
+ " }\n"
+ "});",
+ format("DEBUG({\n"
+ " switch (x) {\n"
+ " case A:\n"
+ " f();\n"
+ " break;\n"
+ " // On B:\n"
+ " case B:\n"
+ " g();\n"
+ " break;\n"
+ " }\n"
+ "});",
+ getLLVMStyle()));
+ EXPECT_EQ("switch (n) {\n"
+ "case 0: {\n"
+ " return false;\n"
+ "}\n"
+ "default: {\n"
+ " return true;\n"
+ "}\n"
+ "}",
+ format("switch (n)\n"
+ "{\n"
+ "case 0: {\n"
+ " return false;\n"
+ "}\n"
+ "default: {\n"
+ " return true;\n"
+ "}\n"
+ "}",
+ getLLVMStyle()));
+ verifyFormat("switch (a) {\n"
+ "case (b):\n"
+ " return;\n"
+ "}");
+
+ verifyFormat("switch (a) {\n"
+ "case some_namespace::\n"
+ " some_constant:\n"
+ " return;\n"
+ "}",
+ getLLVMStyleWithColumns(34));
+
+ FormatStyle Style = getLLVMStyle();
+ Style.IndentCaseLabels = true;
+ Style.AllowShortBlocksOnASingleLine = FormatStyle::SBS_Never;
+ Style.BreakBeforeBraces = FormatStyle::BS_Custom;
+ Style.BraceWrapping.AfterCaseLabel = true;
+ Style.BraceWrapping.AfterControlStatement = FormatStyle::BWACS_Always;
+ EXPECT_EQ("switch (n)\n"
+ "{\n"
+ " case 0:\n"
+ " {\n"
+ " return false;\n"
+ " }\n"
+ " default:\n"
+ " {\n"
+ " return true;\n"
+ " }\n"
+ "}",
+ format("switch (n) {\n"
+ " case 0: {\n"
+ " return false;\n"
+ " }\n"
+ " default: {\n"
+ " return true;\n"
+ " }\n"
+ "}",
+ Style));
+ Style.BraceWrapping.AfterCaseLabel = false;
+ EXPECT_EQ("switch (n)\n"
+ "{\n"
+ " case 0: {\n"
+ " return false;\n"
+ " }\n"
+ " default: {\n"
+ " return true;\n"
+ " }\n"
+ "}",
+ format("switch (n) {\n"
+ " case 0:\n"
+ " {\n"
+ " return false;\n"
+ " }\n"
+ " default:\n"
+ " {\n"
+ " return true;\n"
+ " }\n"
+ "}",
+ Style));
+}
+
+TEST_F(FormatTest, CaseRanges) {
+ verifyFormat("switch (x) {\n"
+ "case 'A' ... 'Z':\n"
+ "case 1 ... 5:\n"
+ "case a ... b:\n"
+ " break;\n"
+ "}");
+}
+
+TEST_F(FormatTest, ShortCaseLabels) {
+ FormatStyle Style = getLLVMStyle();
+ Style.AllowShortCaseLabelsOnASingleLine = true;
+ verifyFormat("switch (a) {\n"
+ "case 1: x = 1; break;\n"
+ "case 2: return;\n"
+ "case 3:\n"
+ "case 4:\n"
+ "case 5: return;\n"
+ "case 6: // comment\n"
+ " return;\n"
+ "case 7:\n"
+ " // comment\n"
+ " return;\n"
+ "case 8:\n"
+ " x = 8; // comment\n"
+ " break;\n"
+ "default: y = 1; break;\n"
+ "}",
+ Style);
+ verifyFormat("switch (a) {\n"
+ "case 0: return; // comment\n"
+ "case 1: break; // comment\n"
+ "case 2: return;\n"
+ "// comment\n"
+ "case 3: return;\n"
+ "// comment 1\n"
+ "// comment 2\n"
+ "// comment 3\n"
+ "case 4: break; /* comment */\n"
+ "case 5:\n"
+ " // comment\n"
+ " break;\n"
+ "case 6: /* comment */ x = 1; break;\n"
+ "case 7: x = /* comment */ 1; break;\n"
+ "case 8:\n"
+ " x = 1; /* comment */\n"
+ " break;\n"
+ "case 9:\n"
+ " break; // comment line 1\n"
+ " // comment line 2\n"
+ "}",
+ Style);
+ EXPECT_EQ("switch (a) {\n"
+ "case 1:\n"
+ " x = 8;\n"
+ " // fall through\n"
+ "case 2: x = 8;\n"
+ "// comment\n"
+ "case 3:\n"
+ " return; /* comment line 1\n"
+ " * comment line 2 */\n"
+ "case 4: i = 8;\n"
+ "// something else\n"
+ "#if FOO\n"
+ "case 5: break;\n"
+ "#endif\n"
+ "}",
+ format("switch (a) {\n"
+ "case 1: x = 8;\n"
+ " // fall through\n"
+ "case 2:\n"
+ " x = 8;\n"
+ "// comment\n"
+ "case 3:\n"
+ " return; /* comment line 1\n"
+ " * comment line 2 */\n"
+ "case 4:\n"
+ " i = 8;\n"
+ "// something else\n"
+ "#if FOO\n"
+ "case 5: break;\n"
+ "#endif\n"
+ "}",
+ Style));
+ EXPECT_EQ("switch (a) {\n"
+ "case 0:\n"
+ " return; // long long long long long long long long long long "
+ "long long comment\n"
+ " // line\n"
+ "}",
+ format("switch (a) {\n"
+ "case 0: return; // long long long long long long long long "
+ "long long long long comment line\n"
+ "}",
+ Style));
+ EXPECT_EQ("switch (a) {\n"
+ "case 0:\n"
+ " return; /* long long long long long long long long long long "
+ "long long comment\n"
+ " line */\n"
+ "}",
+ format("switch (a) {\n"
+ "case 0: return; /* long long long long long long long long "
+ "long long long long comment line */\n"
+ "}",
+ Style));
+ verifyFormat("switch (a) {\n"
+ "#if FOO\n"
+ "case 0: return 0;\n"
+ "#endif\n"
+ "}",
+ Style);
+ verifyFormat("switch (a) {\n"
+ "case 1: {\n"
+ "}\n"
+ "case 2: {\n"
+ " return;\n"
+ "}\n"
+ "case 3: {\n"
+ " x = 1;\n"
+ " return;\n"
+ "}\n"
+ "case 4:\n"
+ " if (x)\n"
+ " return;\n"
+ "}",
+ Style);
+ Style.ColumnLimit = 21;
+ verifyFormat("switch (a) {\n"
+ "case 1: x = 1; break;\n"
+ "case 2: return;\n"
+ "case 3:\n"
+ "case 4:\n"
+ "case 5: return;\n"
+ "default:\n"
+ " y = 1;\n"
+ " break;\n"
+ "}",
+ Style);
+ Style.ColumnLimit = 80;
+ Style.AllowShortCaseLabelsOnASingleLine = false;
+ Style.IndentCaseLabels = true;
+ EXPECT_EQ("switch (n) {\n"
+ " default /*comments*/:\n"
+ " return true;\n"
+ " case 0:\n"
+ " return false;\n"
+ "}",
+ format("switch (n) {\n"
+ "default/*comments*/:\n"
+ " return true;\n"
+ "case 0:\n"
+ " return false;\n"
+ "}",
+ Style));
+ Style.AllowShortCaseLabelsOnASingleLine = true;
+ Style.BreakBeforeBraces = FormatStyle::BS_Custom;
+ Style.BraceWrapping.AfterCaseLabel = true;
+ Style.BraceWrapping.AfterControlStatement = FormatStyle::BWACS_Always;
+ EXPECT_EQ("switch (n)\n"
+ "{\n"
+ " case 0:\n"
+ " {\n"
+ " return false;\n"
+ " }\n"
+ " default:\n"
+ " {\n"
+ " return true;\n"
+ " }\n"
+ "}",
+ format("switch (n) {\n"
+ " case 0: {\n"
+ " return false;\n"
+ " }\n"
+ " default:\n"
+ " {\n"
+ " return true;\n"
+ " }\n"
+ "}",
+ Style));
+}
+
+TEST_F(FormatTest, FormatsLabels) {
+ verifyFormat("void f() {\n"
+ " some_code();\n"
+ "test_label:\n"
+ " some_other_code();\n"
+ " {\n"
+ " some_more_code();\n"
+ " another_label:\n"
+ " some_more_code();\n"
+ " }\n"
+ "}");
+ verifyFormat("{\n"
+ " some_code();\n"
+ "test_label:\n"
+ " some_other_code();\n"
+ "}");
+ verifyFormat("{\n"
+ " some_code();\n"
+ "test_label:;\n"
+ " int i = 0;\n"
+ "}");
+ FormatStyle Style = getLLVMStyle();
+ Style.IndentGotoLabels = false;
+ verifyFormat("void f() {\n"
+ " some_code();\n"
+ "test_label:\n"
+ " some_other_code();\n"
+ " {\n"
+ " some_more_code();\n"
+ "another_label:\n"
+ " some_more_code();\n"
+ " }\n"
+ "}",
+ Style);
+ verifyFormat("{\n"
+ " some_code();\n"
+ "test_label:\n"
+ " some_other_code();\n"
+ "}",
+ Style);
+ verifyFormat("{\n"
+ " some_code();\n"
+ "test_label:;\n"
+ " int i = 0;\n"
+ "}");
+}
+
+TEST_F(FormatTest, MultiLineControlStatements) {
+ FormatStyle Style = getLLVMStyle();
+ Style.BreakBeforeBraces = FormatStyle::BraceBreakingStyle::BS_Custom;
+ Style.BraceWrapping.AfterControlStatement = FormatStyle::BWACS_MultiLine;
+ Style.ColumnLimit = 20;
+ // Short lines should keep opening brace on same line.
+ EXPECT_EQ("if (foo) {\n"
+ " bar();\n"
+ "}",
+ format("if(foo){bar();}", Style));
+ EXPECT_EQ("if (foo) {\n"
+ " bar();\n"
+ "} else {\n"
+ " baz();\n"
+ "}",
+ format("if(foo){bar();}else{baz();}", Style));
+ EXPECT_EQ("if (foo && bar) {\n"
+ " baz();\n"
+ "}",
+ format("if(foo&&bar){baz();}", Style));
+ EXPECT_EQ("if (foo) {\n"
+ " bar();\n"
+ "} else if (baz) {\n"
+ " quux();\n"
+ "}",
+ format("if(foo){bar();}else if(baz){quux();}", Style));
+ EXPECT_EQ(
+ "if (foo) {\n"
+ " bar();\n"
+ "} else if (baz) {\n"
+ " quux();\n"
+ "} else {\n"
+ " foobar();\n"
+ "}",
+ format("if(foo){bar();}else if(baz){quux();}else{foobar();}", Style));
+ EXPECT_EQ("for (;;) {\n"
+ " foo();\n"
+ "}",
+ format("for(;;){foo();}"));
+ EXPECT_EQ("while (1) {\n"
+ " foo();\n"
+ "}",
+ format("while(1){foo();}", Style));
+ EXPECT_EQ("switch (foo) {\n"
+ "case bar:\n"
+ " return;\n"
+ "}",
+ format("switch(foo){case bar:return;}", Style));
+ EXPECT_EQ("try {\n"
+ " foo();\n"
+ "} catch (...) {\n"
+ " bar();\n"
+ "}",
+ format("try{foo();}catch(...){bar();}", Style));
+ EXPECT_EQ("do {\n"
+ " foo();\n"
+ "} while (bar &&\n"
+ " baz);",
+ format("do{foo();}while(bar&&baz);", Style));
+ // Long lines should put opening brace on new line.
+ EXPECT_EQ("if (foo && bar &&\n"
+ " baz)\n"
+ "{\n"
+ " quux();\n"
+ "}",
+ format("if(foo&&bar&&baz){quux();}", Style));
+ EXPECT_EQ("if (foo && bar &&\n"
+ " baz)\n"
+ "{\n"
+ " quux();\n"
+ "}",
+ format("if (foo && bar &&\n"
+ " baz) {\n"
+ " quux();\n"
+ "}",
+ Style));
+ EXPECT_EQ("if (foo) {\n"
+ " bar();\n"
+ "} else if (baz ||\n"
+ " quux)\n"
+ "{\n"
+ " foobar();\n"
+ "}",
+ format("if(foo){bar();}else if(baz||quux){foobar();}", Style));
+ EXPECT_EQ(
+ "if (foo) {\n"
+ " bar();\n"
+ "} else if (baz ||\n"
+ " quux)\n"
+ "{\n"
+ " foobar();\n"
+ "} else {\n"
+ " barbaz();\n"
+ "}",
+ format("if(foo){bar();}else if(baz||quux){foobar();}else{barbaz();}",
+ Style));
+ EXPECT_EQ("for (int i = 0;\n"
+ " i < 10; ++i)\n"
+ "{\n"
+ " foo();\n"
+ "}",
+ format("for(int i=0;i<10;++i){foo();}", Style));
+ EXPECT_EQ("while (foo || bar ||\n"
+ " baz)\n"
+ "{\n"
+ " quux();\n"
+ "}",
+ format("while(foo||bar||baz){quux();}", Style));
+ EXPECT_EQ("switch (\n"
+ " foo = barbaz)\n"
+ "{\n"
+ "case quux:\n"
+ " return;\n"
+ "}",
+ format("switch(foo=barbaz){case quux:return;}", Style));
+ EXPECT_EQ("try {\n"
+ " foo();\n"
+ "} catch (\n"
+ " Exception &bar)\n"
+ "{\n"
+ " baz();\n"
+ "}",
+ format("try{foo();}catch(Exception&bar){baz();}", Style));
+ Style.ColumnLimit =
+ 40; // to concentrate at brace wrapping, not line wrap due to column limit
+ EXPECT_EQ("try {\n"
+ " foo();\n"
+ "} catch (Exception &bar) {\n"
+ " baz();\n"
+ "}",
+ format("try{foo();}catch(Exception&bar){baz();}", Style));
+ Style.ColumnLimit =
+ 20; // to concentrate at brace wrapping, not line wrap due to column limit
+
+ Style.BraceWrapping.BeforeElse = true;
+ EXPECT_EQ(
+ "if (foo) {\n"
+ " bar();\n"
+ "}\n"
+ "else if (baz ||\n"
+ " quux)\n"
+ "{\n"
+ " foobar();\n"
+ "}\n"
+ "else {\n"
+ " barbaz();\n"
+ "}",
+ format("if(foo){bar();}else if(baz||quux){foobar();}else{barbaz();}",
+ Style));
+
+ Style.BraceWrapping.BeforeCatch = true;
+ EXPECT_EQ("try {\n"
+ " foo();\n"
+ "}\n"
+ "catch (...) {\n"
+ " baz();\n"
+ "}",
+ format("try{foo();}catch(...){baz();}", Style));
+}
+
+//===----------------------------------------------------------------------===//
+// Tests for classes, namespaces, etc.
+//===----------------------------------------------------------------------===//
+
+TEST_F(FormatTest, DoesNotBreakSemiAfterClassDecl) {
+ verifyFormat("class A {};");
+}
+
+TEST_F(FormatTest, UnderstandsAccessSpecifiers) {
+ verifyFormat("class A {\n"
+ "public:\n"
+ "public: // comment\n"
+ "protected:\n"
+ "private:\n"
+ " void f() {}\n"
+ "};");
+ verifyFormat("export class A {\n"
+ "public:\n"
+ "public: // comment\n"
+ "protected:\n"
+ "private:\n"
+ " void f() {}\n"
+ "};");
+ verifyGoogleFormat("class A {\n"
+ " public:\n"
+ " protected:\n"
+ " private:\n"
+ " void f() {}\n"
+ "};");
+ verifyGoogleFormat("export class A {\n"
+ " public:\n"
+ " protected:\n"
+ " private:\n"
+ " void f() {}\n"
+ "};");
+ verifyFormat("class A {\n"
+ "public slots:\n"
+ " void f1() {}\n"
+ "public Q_SLOTS:\n"
+ " void f2() {}\n"
+ "protected slots:\n"
+ " void f3() {}\n"
+ "protected Q_SLOTS:\n"
+ " void f4() {}\n"
+ "private slots:\n"
+ " void f5() {}\n"
+ "private Q_SLOTS:\n"
+ " void f6() {}\n"
+ "signals:\n"
+ " void g1();\n"
+ "Q_SIGNALS:\n"
+ " void g2();\n"
+ "};");
+
+ // Don't interpret 'signals' the wrong way.
+ verifyFormat("signals.set();");
+ verifyFormat("for (Signals signals : f()) {\n}");
+ verifyFormat("{\n"
+ " signals.set(); // This needs indentation.\n"
+ "}");
+ verifyFormat("void f() {\n"
+ "label:\n"
+ " signals.baz();\n"
+ "}");
+}
+
+TEST_F(FormatTest, SeparatesLogicalBlocks) {
+ EXPECT_EQ("class A {\n"
+ "public:\n"
+ " void f();\n"
+ "\n"
+ "private:\n"
+ " void g() {}\n"
+ " // test\n"
+ "protected:\n"
+ " int h;\n"
+ "};",
+ format("class A {\n"
+ "public:\n"
+ "void f();\n"
+ "private:\n"
+ "void g() {}\n"
+ "// test\n"
+ "protected:\n"
+ "int h;\n"
+ "};"));
+ EXPECT_EQ("class A {\n"
+ "protected:\n"
+ "public:\n"
+ " void f();\n"
+ "};",
+ format("class A {\n"
+ "protected:\n"
+ "\n"
+ "public:\n"
+ "\n"
+ " void f();\n"
+ "};"));
+
+ // Even ensure proper spacing inside macros.
+ EXPECT_EQ("#define B \\\n"
+ " class A { \\\n"
+ " protected: \\\n"
+ " public: \\\n"
+ " void f(); \\\n"
+ " };",
+ format("#define B \\\n"
+ " class A { \\\n"
+ " protected: \\\n"
+ " \\\n"
+ " public: \\\n"
+ " \\\n"
+ " void f(); \\\n"
+ " };",
+ getGoogleStyle()));
+ // But don't remove empty lines after macros ending in access specifiers.
+ EXPECT_EQ("#define A private:\n"
+ "\n"
+ "int i;",
+ format("#define A private:\n"
+ "\n"
+ "int i;"));
+}
+
+TEST_F(FormatTest, FormatsClasses) {
+ verifyFormat("class A : public B {};");
+ verifyFormat("class A : public ::B {};");
+
+ verifyFormat(
+ "class AAAAAAAAAAAAAAAAAAAA : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,\n"
+ " public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};");
+ verifyFormat("class AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n"
+ " : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,\n"
+ " public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};");
+ verifyFormat(
+ "class A : public B, public C, public D, public E, public F {};");
+ verifyFormat("class AAAAAAAAAAAA : public B,\n"
+ " public C,\n"
+ " public D,\n"
+ " public E,\n"
+ " public F,\n"
+ " public G {};");
+
+ verifyFormat("class\n"
+ " ReallyReallyLongClassName {\n"
+ " int i;\n"
+ "};",
+ getLLVMStyleWithColumns(32));
+ verifyFormat("struct aaaaaaaaaaaaa : public aaaaaaaaaaaaaaaaaaa< // break\n"
+ " aaaaaaaaaaaaaaaa> {};");
+ verifyFormat("struct aaaaaaaaaaaaaaaaaaaa\n"
+ " : public aaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaa> {};");
+ verifyFormat("template <class R, class C>\n"
+ "struct Aaaaaaaaaaaaaaaaa<R (C::*)(int) const>\n"
+ " : Aaaaaaaaaaaaaaaaa<R (C::*)(int)> {};");
+ verifyFormat("class ::A::B {};");
+}
+
+TEST_F(FormatTest, BreakInheritanceStyle) {
+ FormatStyle StyleWithInheritanceBreakBeforeComma = getLLVMStyle();
+ StyleWithInheritanceBreakBeforeComma.BreakInheritanceList =
+ FormatStyle::BILS_BeforeComma;
+ verifyFormat("class MyClass : public X {};",
+ StyleWithInheritanceBreakBeforeComma);
+ verifyFormat("class MyClass\n"
+ " : public X\n"
+ " , public Y {};",
+ StyleWithInheritanceBreakBeforeComma);
+ verifyFormat("class AAAAAAAAAAAAAAAAAAAAAA\n"
+ " : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\n"
+ " , public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};",
+ StyleWithInheritanceBreakBeforeComma);
+ verifyFormat("struct aaaaaaaaaaaaa\n"
+ " : public aaaaaaaaaaaaaaaaaaa< // break\n"
+ " aaaaaaaaaaaaaaaa> {};",
+ StyleWithInheritanceBreakBeforeComma);
+
+ FormatStyle StyleWithInheritanceBreakAfterColon = getLLVMStyle();
+ StyleWithInheritanceBreakAfterColon.BreakInheritanceList =
+ FormatStyle::BILS_AfterColon;
+ verifyFormat("class MyClass : public X {};",
+ StyleWithInheritanceBreakAfterColon);
+ verifyFormat("class MyClass : public X, public Y {};",
+ StyleWithInheritanceBreakAfterColon);
+ verifyFormat("class AAAAAAAAAAAAAAAAAAAAAA :\n"
+ " public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,\n"
+ " public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};",
+ StyleWithInheritanceBreakAfterColon);
+ verifyFormat("struct aaaaaaaaaaaaa :\n"
+ " public aaaaaaaaaaaaaaaaaaa< // break\n"
+ " aaaaaaaaaaaaaaaa> {};",
+ StyleWithInheritanceBreakAfterColon);
+}
+
+TEST_F(FormatTest, FormatsVariableDeclarationsAfterStructOrClass) {
+ verifyFormat("class A {\n} a, b;");
+ verifyFormat("struct A {\n} a, b;");
+ verifyFormat("union A {\n} a;");
+}
+
+TEST_F(FormatTest, FormatsEnum) {
+ verifyFormat("enum {\n"
+ " Zero,\n"
+ " One = 1,\n"
+ " Two = One + 1,\n"
+ " Three = (One + Two),\n"
+ " Four = (Zero && (One ^ Two)) | (One << Two),\n"
+ " Five = (One, Two, Three, Four, 5)\n"
+ "};");
+ verifyGoogleFormat("enum {\n"
+ " Zero,\n"
+ " One = 1,\n"
+ " Two = One + 1,\n"
+ " Three = (One + Two),\n"
+ " Four = (Zero && (One ^ Two)) | (One << Two),\n"
+ " Five = (One, Two, Three, Four, 5)\n"
+ "};");
+ verifyFormat("enum Enum {};");
+ verifyFormat("enum {};");
+ verifyFormat("enum X E {} d;");
+ verifyFormat("enum __attribute__((...)) E {} d;");
+ verifyFormat("enum __declspec__((...)) E {} d;");
+ verifyFormat("enum {\n"
+ " Bar = Foo<int, int>::value\n"
+ "};",
+ getLLVMStyleWithColumns(30));
+
+ verifyFormat("enum ShortEnum { A, B, C };");
+ verifyGoogleFormat("enum ShortEnum { A, B, C };");
+
+ EXPECT_EQ("enum KeepEmptyLines {\n"
+ " ONE,\n"
+ "\n"
+ " TWO,\n"
+ "\n"
+ " THREE\n"
+ "}",
+ format("enum KeepEmptyLines {\n"
+ " ONE,\n"
+ "\n"
+ " TWO,\n"
+ "\n"
+ "\n"
+ " THREE\n"
+ "}"));
+ verifyFormat("enum E { // comment\n"
+ " ONE,\n"
+ " TWO\n"
+ "};\n"
+ "int i;");
+ // Not enums.
+ verifyFormat("enum X f() {\n"
+ " a();\n"
+ " return 42;\n"
+ "}");
+ verifyFormat("enum X Type::f() {\n"
+ " a();\n"
+ " return 42;\n"
+ "}");
+ verifyFormat("enum ::X f() {\n"
+ " a();\n"
+ " return 42;\n"
+ "}");
+ verifyFormat("enum ns::X f() {\n"
+ " a();\n"
+ " return 42;\n"
+ "}");
+}
+
+TEST_F(FormatTest, FormatsEnumsWithErrors) {
+ verifyFormat("enum Type {\n"
+ " One = 0; // These semicolons should be commas.\n"
+ " Two = 1;\n"
+ "};");
+ verifyFormat("namespace n {\n"
+ "enum Type {\n"
+ " One,\n"
+ " Two, // missing };\n"
+ " int i;\n"
+ "}\n"
+ "void g() {}");
+}
+
+TEST_F(FormatTest, FormatsEnumStruct) {
+ verifyFormat("enum struct {\n"
+ " Zero,\n"
+ " One = 1,\n"
+ " Two = One + 1,\n"
+ " Three = (One + Two),\n"
+ " Four = (Zero && (One ^ Two)) | (One << Two),\n"
+ " Five = (One, Two, Three, Four, 5)\n"
+ "};");
+ verifyFormat("enum struct Enum {};");
+ verifyFormat("enum struct {};");
+ verifyFormat("enum struct X E {} d;");
+ verifyFormat("enum struct __attribute__((...)) E {} d;");
+ verifyFormat("enum struct __declspec__((...)) E {} d;");
+ verifyFormat("enum struct X f() {\n a();\n return 42;\n}");
+}
+
+TEST_F(FormatTest, FormatsEnumClass) {
+ verifyFormat("enum class {\n"
+ " Zero,\n"
+ " One = 1,\n"
+ " Two = One + 1,\n"
+ " Three = (One + Two),\n"
+ " Four = (Zero && (One ^ Two)) | (One << Two),\n"
+ " Five = (One, Two, Three, Four, 5)\n"
+ "};");
+ verifyFormat("enum class Enum {};");
+ verifyFormat("enum class {};");
+ verifyFormat("enum class X E {} d;");
+ verifyFormat("enum class __attribute__((...)) E {} d;");
+ verifyFormat("enum class __declspec__((...)) E {} d;");
+ verifyFormat("enum class X f() {\n a();\n return 42;\n}");
+}
+
+TEST_F(FormatTest, FormatsEnumTypes) {
+ verifyFormat("enum X : int {\n"
+ " A, // Force multiple lines.\n"
+ " B\n"
+ "};");
+ verifyFormat("enum X : int { A, B };");
+ verifyFormat("enum X : std::uint32_t { A, B };");
+}
+
+TEST_F(FormatTest, FormatsTypedefEnum) {
+ FormatStyle Style = getLLVMStyle();
+ Style.ColumnLimit = 40;
+ verifyFormat("typedef enum {} EmptyEnum;");
+ verifyFormat("typedef enum { A, B, C } ShortEnum;");
+ verifyFormat("typedef enum {\n"
+ " ZERO = 0,\n"
+ " ONE = 1,\n"
+ " TWO = 2,\n"
+ " THREE = 3\n"
+ "} LongEnum;",
+ Style);
+ Style.BreakBeforeBraces = FormatStyle::BS_Custom;
+ Style.BraceWrapping.AfterEnum = true;
+ verifyFormat("typedef enum {} EmptyEnum;");
+ verifyFormat("typedef enum { A, B, C } ShortEnum;");
+ verifyFormat("typedef enum\n"
+ "{\n"
+ " ZERO = 0,\n"
+ " ONE = 1,\n"
+ " TWO = 2,\n"
+ " THREE = 3\n"
+ "} LongEnum;",
+ Style);
+}
+
+TEST_F(FormatTest, FormatsNSEnums) {
+ verifyGoogleFormat("typedef NS_ENUM(NSInteger, SomeName) { AAA, BBB }");
+ verifyGoogleFormat(
+ "typedef NS_CLOSED_ENUM(NSInteger, SomeName) { AAA, BBB }");
+ verifyGoogleFormat("typedef NS_ENUM(NSInteger, MyType) {\n"
+ " // Information about someDecentlyLongValue.\n"
+ " someDecentlyLongValue,\n"
+ " // Information about anotherDecentlyLongValue.\n"
+ " anotherDecentlyLongValue,\n"
+ " // Information about aThirdDecentlyLongValue.\n"
+ " aThirdDecentlyLongValue\n"
+ "};");
+ verifyGoogleFormat("typedef NS_CLOSED_ENUM(NSInteger, MyType) {\n"
+ " // Information about someDecentlyLongValue.\n"
+ " someDecentlyLongValue,\n"
+ " // Information about anotherDecentlyLongValue.\n"
+ " anotherDecentlyLongValue,\n"
+ " // Information about aThirdDecentlyLongValue.\n"
+ " aThirdDecentlyLongValue\n"
+ "};");
+ verifyGoogleFormat("typedef NS_OPTIONS(NSInteger, MyType) {\n"
+ " a = 1,\n"
+ " b = 2,\n"
+ " c = 3,\n"
+ "};");
+ verifyGoogleFormat("typedef CF_ENUM(NSInteger, MyType) {\n"
+ " a = 1,\n"
+ " b = 2,\n"
+ " c = 3,\n"
+ "};");
+ verifyGoogleFormat("typedef CF_CLOSED_ENUM(NSInteger, MyType) {\n"
+ " a = 1,\n"
+ " b = 2,\n"
+ " c = 3,\n"
+ "};");
+ verifyGoogleFormat("typedef CF_OPTIONS(NSInteger, MyType) {\n"
+ " a = 1,\n"
+ " b = 2,\n"
+ " c = 3,\n"
+ "};");
+}
+
+TEST_F(FormatTest, FormatsBitfields) {
+ verifyFormat("struct Bitfields {\n"
+ " unsigned sClass : 8;\n"
+ " unsigned ValueKind : 2;\n"
+ "};");
+ verifyFormat("struct A {\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa : 1,\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbb;\n"
+ "};");
+ verifyFormat("struct MyStruct {\n"
+ " uchar data;\n"
+ " uchar : 8;\n"
+ " uchar : 8;\n"
+ " uchar other;\n"
+ "};");
+}
+
+TEST_F(FormatTest, FormatsNamespaces) {
+ FormatStyle LLVMWithNoNamespaceFix = getLLVMStyle();
+ LLVMWithNoNamespaceFix.FixNamespaceComments = false;
+
+ verifyFormat("namespace some_namespace {\n"
+ "class A {};\n"
+ "void f() { f(); }\n"
+ "}",
+ LLVMWithNoNamespaceFix);
+ verifyFormat("namespace N::inline D {\n"
+ "class A {};\n"
+ "void f() { f(); }\n"
+ "}",
+ LLVMWithNoNamespaceFix);
+ verifyFormat("namespace N::inline D::E {\n"
+ "class A {};\n"
+ "void f() { f(); }\n"
+ "}",
+ LLVMWithNoNamespaceFix);
+ verifyFormat("namespace [[deprecated(\"foo[bar\")]] some_namespace {\n"
+ "class A {};\n"
+ "void f() { f(); }\n"
+ "}",
+ LLVMWithNoNamespaceFix);
+ verifyFormat("/* something */ namespace some_namespace {\n"
+ "class A {};\n"
+ "void f() { f(); }\n"
+ "}",
+ LLVMWithNoNamespaceFix);
+ verifyFormat("namespace {\n"
+ "class A {};\n"
+ "void f() { f(); }\n"
+ "}",
+ LLVMWithNoNamespaceFix);
+ verifyFormat("/* something */ namespace {\n"
+ "class A {};\n"
+ "void f() { f(); }\n"
+ "}",
+ LLVMWithNoNamespaceFix);
+ verifyFormat("inline namespace X {\n"
+ "class A {};\n"
+ "void f() { f(); }\n"
+ "}",
+ LLVMWithNoNamespaceFix);
+ verifyFormat("/* something */ inline namespace X {\n"
+ "class A {};\n"
+ "void f() { f(); }\n"
+ "}",
+ LLVMWithNoNamespaceFix);
+ verifyFormat("export namespace X {\n"
+ "class A {};\n"
+ "void f() { f(); }\n"
+ "}",
+ LLVMWithNoNamespaceFix);
+ verifyFormat("using namespace some_namespace;\n"
+ "class A {};\n"
+ "void f() { f(); }",
+ LLVMWithNoNamespaceFix);
+
+ // This code is more common than we thought; if we
+ // layout this correctly the semicolon will go into
+ // its own line, which is undesirable.
+ verifyFormat("namespace {};", LLVMWithNoNamespaceFix);
+ verifyFormat("namespace {\n"
+ "class A {};\n"
+ "};",
+ LLVMWithNoNamespaceFix);
+
+ verifyFormat("namespace {\n"
+ "int SomeVariable = 0; // comment\n"
+ "} // namespace",
+ LLVMWithNoNamespaceFix);
+ EXPECT_EQ("#ifndef HEADER_GUARD\n"
+ "#define HEADER_GUARD\n"
+ "namespace my_namespace {\n"
+ "int i;\n"
+ "} // my_namespace\n"
+ "#endif // HEADER_GUARD",
+ format("#ifndef HEADER_GUARD\n"
+ " #define HEADER_GUARD\n"
+ " namespace my_namespace {\n"
+ "int i;\n"
+ "} // my_namespace\n"
+ "#endif // HEADER_GUARD",
+ LLVMWithNoNamespaceFix));
+
+ EXPECT_EQ("namespace A::B {\n"
+ "class C {};\n"
+ "}",
+ format("namespace A::B {\n"
+ "class C {};\n"
+ "}",
+ LLVMWithNoNamespaceFix));
+
+ FormatStyle Style = getLLVMStyle();
+ Style.NamespaceIndentation = FormatStyle::NI_All;
+ EXPECT_EQ("namespace out {\n"
+ " int i;\n"
+ " namespace in {\n"
+ " int i;\n"
+ " } // namespace in\n"
+ "} // namespace out",
+ format("namespace out {\n"
+ "int i;\n"
+ "namespace in {\n"
+ "int i;\n"
+ "} // namespace in\n"
+ "} // namespace out",
+ Style));
+
+ Style.NamespaceIndentation = FormatStyle::NI_Inner;
+ EXPECT_EQ("namespace out {\n"
+ "int i;\n"
+ "namespace in {\n"
+ " int i;\n"
+ "} // namespace in\n"
+ "} // namespace out",
+ format("namespace out {\n"
+ "int i;\n"
+ "namespace in {\n"
+ "int i;\n"
+ "} // namespace in\n"
+ "} // namespace out",
+ Style));
+}
+
+TEST_F(FormatTest, NamespaceMacros) {
+ FormatStyle Style = getLLVMStyle();
+ Style.NamespaceMacros.push_back("TESTSUITE");
+
+ verifyFormat("TESTSUITE(A) {\n"
+ "int foo();\n"
+ "} // TESTSUITE(A)",
+ Style);
+
+ verifyFormat("TESTSUITE(A, B) {\n"
+ "int foo();\n"
+ "} // TESTSUITE(A)",
+ Style);
+
+ // Properly indent according to NamespaceIndentation style
+ Style.NamespaceIndentation = FormatStyle::NI_All;
+ verifyFormat("TESTSUITE(A) {\n"
+ " int foo();\n"
+ "} // TESTSUITE(A)",
+ Style);
+ verifyFormat("TESTSUITE(A) {\n"
+ " namespace B {\n"
+ " int foo();\n"
+ " } // namespace B\n"
+ "} // TESTSUITE(A)",
+ Style);
+ verifyFormat("namespace A {\n"
+ " TESTSUITE(B) {\n"
+ " int foo();\n"
+ " } // TESTSUITE(B)\n"
+ "} // namespace A",
+ Style);
+
+ Style.NamespaceIndentation = FormatStyle::NI_Inner;
+ verifyFormat("TESTSUITE(A) {\n"
+ "TESTSUITE(B) {\n"
+ " int foo();\n"
+ "} // TESTSUITE(B)\n"
+ "} // TESTSUITE(A)",
+ Style);
+ verifyFormat("TESTSUITE(A) {\n"
+ "namespace B {\n"
+ " int foo();\n"
+ "} // namespace B\n"
+ "} // TESTSUITE(A)",
+ Style);
+ verifyFormat("namespace A {\n"
+ "TESTSUITE(B) {\n"
+ " int foo();\n"
+ "} // TESTSUITE(B)\n"
+ "} // namespace A",
+ Style);
+
+ // Properly merge namespace-macros blocks in CompactNamespaces mode
+ Style.NamespaceIndentation = FormatStyle::NI_None;
+ Style.CompactNamespaces = true;
+ verifyFormat("TESTSUITE(A) { TESTSUITE(B) {\n"
+ "}} // TESTSUITE(A::B)",
+ Style);
+
+ EXPECT_EQ("TESTSUITE(out) { TESTSUITE(in) {\n"
+ "}} // TESTSUITE(out::in)",
+ format("TESTSUITE(out) {\n"
+ "TESTSUITE(in) {\n"
+ "} // TESTSUITE(in)\n"
+ "} // TESTSUITE(out)",
+ Style));
+
+ EXPECT_EQ("TESTSUITE(out) { TESTSUITE(in) {\n"
+ "}} // TESTSUITE(out::in)",
+ format("TESTSUITE(out) {\n"
+ "TESTSUITE(in) {\n"
+ "} // TESTSUITE(in)\n"
+ "} // TESTSUITE(out)",
+ Style));
+
+ // Do not merge different namespaces/macros
+ EXPECT_EQ("namespace out {\n"
+ "TESTSUITE(in) {\n"
+ "} // TESTSUITE(in)\n"
+ "} // namespace out",
+ format("namespace out {\n"
+ "TESTSUITE(in) {\n"
+ "} // TESTSUITE(in)\n"
+ "} // namespace out",
+ Style));
+ EXPECT_EQ("TESTSUITE(out) {\n"
+ "namespace in {\n"
+ "} // namespace in\n"
+ "} // TESTSUITE(out)",
+ format("TESTSUITE(out) {\n"
+ "namespace in {\n"
+ "} // namespace in\n"
+ "} // TESTSUITE(out)",
+ Style));
+ Style.NamespaceMacros.push_back("FOOBAR");
+ EXPECT_EQ("TESTSUITE(out) {\n"
+ "FOOBAR(in) {\n"
+ "} // FOOBAR(in)\n"
+ "} // TESTSUITE(out)",
+ format("TESTSUITE(out) {\n"
+ "FOOBAR(in) {\n"
+ "} // FOOBAR(in)\n"
+ "} // TESTSUITE(out)",
+ Style));
+}
+
+TEST_F(FormatTest, FormatsCompactNamespaces) {
+ FormatStyle Style = getLLVMStyle();
+ Style.CompactNamespaces = true;
+ Style.NamespaceMacros.push_back("TESTSUITE");
+
+ verifyFormat("namespace A { namespace B {\n"
+ "}} // namespace A::B",
+ Style);
+
+ EXPECT_EQ("namespace out { namespace in {\n"
+ "}} // namespace out::in",
+ format("namespace out {\n"
+ "namespace in {\n"
+ "} // namespace in\n"
+ "} // namespace out",
+ Style));
+
+ // Only namespaces which have both consecutive opening and end get compacted
+ EXPECT_EQ("namespace out {\n"
+ "namespace in1 {\n"
+ "} // namespace in1\n"
+ "namespace in2 {\n"
+ "} // namespace in2\n"
+ "} // namespace out",
+ format("namespace out {\n"
+ "namespace in1 {\n"
+ "} // namespace in1\n"
+ "namespace in2 {\n"
+ "} // namespace in2\n"
+ "} // namespace out",
+ Style));
+
+ EXPECT_EQ("namespace out {\n"
+ "int i;\n"
+ "namespace in {\n"
+ "int j;\n"
+ "} // namespace in\n"
+ "int k;\n"
+ "} // namespace out",
+ format("namespace out { int i;\n"
+ "namespace in { int j; } // namespace in\n"
+ "int k; } // namespace out",
+ Style));
+
+ EXPECT_EQ("namespace A { namespace B { namespace C {\n"
+ "}}} // namespace A::B::C\n",
+ format("namespace A { namespace B {\n"
+ "namespace C {\n"
+ "}} // namespace B::C\n"
+ "} // namespace A\n",
+ Style));
+
+ Style.ColumnLimit = 40;
+ EXPECT_EQ("namespace aaaaaaaaaa {\n"
+ "namespace bbbbbbbbbb {\n"
+ "}} // namespace aaaaaaaaaa::bbbbbbbbbb",
+ format("namespace aaaaaaaaaa {\n"
+ "namespace bbbbbbbbbb {\n"
+ "} // namespace bbbbbbbbbb\n"
+ "} // namespace aaaaaaaaaa",
+ Style));
+
+ EXPECT_EQ("namespace aaaaaa { namespace bbbbbb {\n"
+ "namespace cccccc {\n"
+ "}}} // namespace aaaaaa::bbbbbb::cccccc",
+ format("namespace aaaaaa {\n"
+ "namespace bbbbbb {\n"
+ "namespace cccccc {\n"
+ "} // namespace cccccc\n"
+ "} // namespace bbbbbb\n"
+ "} // namespace aaaaaa",
+ Style));
+ Style.ColumnLimit = 80;
+
+ // Extra semicolon after 'inner' closing brace prevents merging
+ EXPECT_EQ("namespace out { namespace in {\n"
+ "}; } // namespace out::in",
+ format("namespace out {\n"
+ "namespace in {\n"
+ "}; // namespace in\n"
+ "} // namespace out",
+ Style));
+
+ // Extra semicolon after 'outer' closing brace is conserved
+ EXPECT_EQ("namespace out { namespace in {\n"
+ "}}; // namespace out::in",
+ format("namespace out {\n"
+ "namespace in {\n"
+ "} // namespace in\n"
+ "}; // namespace out",
+ Style));
+
+ Style.NamespaceIndentation = FormatStyle::NI_All;
+ EXPECT_EQ("namespace out { namespace in {\n"
+ " int i;\n"
+ "}} // namespace out::in",
+ format("namespace out {\n"
+ "namespace in {\n"
+ "int i;\n"
+ "} // namespace in\n"
+ "} // namespace out",
+ Style));
+ EXPECT_EQ("namespace out { namespace mid {\n"
+ " namespace in {\n"
+ " int j;\n"
+ " } // namespace in\n"
+ " int k;\n"
+ "}} // namespace out::mid",
+ format("namespace out { namespace mid {\n"
+ "namespace in { int j; } // namespace in\n"
+ "int k; }} // namespace out::mid",
+ Style));
+
+ Style.NamespaceIndentation = FormatStyle::NI_Inner;
+ EXPECT_EQ("namespace out { namespace in {\n"
+ " int i;\n"
+ "}} // namespace out::in",
+ format("namespace out {\n"
+ "namespace in {\n"
+ "int i;\n"
+ "} // namespace in\n"
+ "} // namespace out",
+ Style));
+ EXPECT_EQ("namespace out { namespace mid { namespace in {\n"
+ " int i;\n"
+ "}}} // namespace out::mid::in",
+ format("namespace out {\n"
+ "namespace mid {\n"
+ "namespace in {\n"
+ "int i;\n"
+ "} // namespace in\n"
+ "} // namespace mid\n"
+ "} // namespace out",
+ Style));
+}
+
+TEST_F(FormatTest, FormatsExternC) {
+ verifyFormat("extern \"C\" {\nint a;");
+ verifyFormat("extern \"C\" {}");
+ verifyFormat("extern \"C\" {\n"
+ "int foo();\n"
+ "}");
+ verifyFormat("extern \"C\" int foo() {}");
+ verifyFormat("extern \"C\" int foo();");
+ verifyFormat("extern \"C\" int foo() {\n"
+ " int i = 42;\n"
+ " return i;\n"
+ "}");
+
+ FormatStyle Style = getLLVMStyle();
+ Style.BreakBeforeBraces = FormatStyle::BS_Custom;
+ Style.BraceWrapping.AfterFunction = true;
+ verifyFormat("extern \"C\" int foo() {}", Style);
+ verifyFormat("extern \"C\" int foo();", Style);
+ verifyFormat("extern \"C\" int foo()\n"
+ "{\n"
+ " int i = 42;\n"
+ " return i;\n"
+ "}",
+ Style);
+
+ Style.BraceWrapping.AfterExternBlock = true;
+ Style.BraceWrapping.SplitEmptyRecord = false;
+ verifyFormat("extern \"C\"\n"
+ "{}",
+ Style);
+ verifyFormat("extern \"C\"\n"
+ "{\n"
+ " int foo();\n"
+ "}",
+ Style);
+}
+
+TEST_F(FormatTest, FormatsInlineASM) {
+ verifyFormat("asm(\"xyz\" : \"=a\"(a), \"=d\"(b) : \"a\"(data));");
+ verifyFormat("asm(\"nop\" ::: \"memory\");");
+ verifyFormat(
+ "asm(\"movq\\t%%rbx, %%rsi\\n\\t\"\n"
+ " \"cpuid\\n\\t\"\n"
+ " \"xchgq\\t%%rbx, %%rsi\\n\\t\"\n"
+ " : \"=a\"(*rEAX), \"=S\"(*rEBX), \"=c\"(*rECX), \"=d\"(*rEDX)\n"
+ " : \"a\"(value));");
+ EXPECT_EQ(
+ "void NS_InvokeByIndex(void *that, unsigned int methodIndex) {\n"
+ " __asm {\n"
+ " mov edx,[that] // vtable in edx\n"
+ " mov eax,methodIndex\n"
+ " call [edx][eax*4] // stdcall\n"
+ " }\n"
+ "}",
+ format("void NS_InvokeByIndex(void *that, unsigned int methodIndex) {\n"
+ " __asm {\n"
+ " mov edx,[that] // vtable in edx\n"
+ " mov eax,methodIndex\n"
+ " call [edx][eax*4] // stdcall\n"
+ " }\n"
+ "}"));
+ EXPECT_EQ("_asm {\n"
+ " xor eax, eax;\n"
+ " cpuid;\n"
+ "}",
+ format("_asm {\n"
+ " xor eax, eax;\n"
+ " cpuid;\n"
+ "}"));
+ verifyFormat("void function() {\n"
+ " // comment\n"
+ " asm(\"\");\n"
+ "}");
+ EXPECT_EQ("__asm {\n"
+ "}\n"
+ "int i;",
+ format("__asm {\n"
+ "}\n"
+ "int i;"));
+}
+
+TEST_F(FormatTest, FormatTryCatch) {
+ verifyFormat("try {\n"
+ " throw a * b;\n"
+ "} catch (int a) {\n"
+ " // Do nothing.\n"
+ "} catch (...) {\n"
+ " exit(42);\n"
+ "}");
+
+ // Function-level try statements.
+ verifyFormat("int f() try { return 4; } catch (...) {\n"
+ " return 5;\n"
+ "}");
+ verifyFormat("class A {\n"
+ " int a;\n"
+ " A() try : a(0) {\n"
+ " } catch (...) {\n"
+ " throw;\n"
+ " }\n"
+ "};\n");
+
+ // Incomplete try-catch blocks.
+ verifyIncompleteFormat("try {} catch (");
+}
+
+TEST_F(FormatTest, FormatSEHTryCatch) {
+ verifyFormat("__try {\n"
+ " int a = b * c;\n"
+ "} __except (EXCEPTION_EXECUTE_HANDLER) {\n"
+ " // Do nothing.\n"
+ "}");
+
+ verifyFormat("__try {\n"
+ " int a = b * c;\n"
+ "} __finally {\n"
+ " // Do nothing.\n"
+ "}");
+
+ verifyFormat("DEBUG({\n"
+ " __try {\n"
+ " } __finally {\n"
+ " }\n"
+ "});\n");
+}
+
+TEST_F(FormatTest, IncompleteTryCatchBlocks) {
+ verifyFormat("try {\n"
+ " f();\n"
+ "} catch {\n"
+ " g();\n"
+ "}");
+ verifyFormat("try {\n"
+ " f();\n"
+ "} catch (A a) MACRO(x) {\n"
+ " g();\n"
+ "} catch (B b) MACRO(x) {\n"
+ " g();\n"
+ "}");
+}
+
+TEST_F(FormatTest, FormatTryCatchBraceStyles) {
+ FormatStyle Style = getLLVMStyle();
+ for (auto BraceStyle : {FormatStyle::BS_Attach, FormatStyle::BS_Mozilla,
+ FormatStyle::BS_WebKit}) {
+ Style.BreakBeforeBraces = BraceStyle;
+ verifyFormat("try {\n"
+ " // something\n"
+ "} catch (...) {\n"
+ " // something\n"
+ "}",
+ Style);
+ }
+ Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup;
+ verifyFormat("try {\n"
+ " // something\n"
+ "}\n"
+ "catch (...) {\n"
+ " // something\n"
+ "}",
+ Style);
+ verifyFormat("__try {\n"
+ " // something\n"
+ "}\n"
+ "__finally {\n"
+ " // something\n"
+ "}",
+ Style);
+ verifyFormat("@try {\n"
+ " // something\n"
+ "}\n"
+ "@finally {\n"
+ " // something\n"
+ "}",
+ Style);
+ Style.BreakBeforeBraces = FormatStyle::BS_Allman;
+ verifyFormat("try\n"
+ "{\n"
+ " // something\n"
+ "}\n"
+ "catch (...)\n"
+ "{\n"
+ " // something\n"
+ "}",
+ Style);
+ Style.BreakBeforeBraces = FormatStyle::BS_Whitesmiths;
+ verifyFormat("try\n"
+ " {\n"
+ " // something white\n"
+ " }\n"
+ "catch (...)\n"
+ " {\n"
+ " // something white\n"
+ " }",
+ Style);
+ Style.BreakBeforeBraces = FormatStyle::BS_GNU;
+ verifyFormat("try\n"
+ " {\n"
+ " // something\n"
+ " }\n"
+ "catch (...)\n"
+ " {\n"
+ " // something\n"
+ " }",
+ Style);
+ Style.BreakBeforeBraces = FormatStyle::BS_Custom;
+ Style.BraceWrapping.BeforeCatch = true;
+ verifyFormat("try {\n"
+ " // something\n"
+ "}\n"
+ "catch (...) {\n"
+ " // something\n"
+ "}",
+ Style);
+}
+
+TEST_F(FormatTest, StaticInitializers) {
+ verifyFormat("static SomeClass SC = {1, 'a'};");
+
+ verifyFormat("static SomeClass WithALoooooooooooooooooooongName = {\n"
+ " 100000000, "
+ "\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"};");
+
+ // Here, everything other than the "}" would fit on a line.
+ verifyFormat("static int LooooooooooooooooooooooooongVariable[1] = {\n"
+ " 10000000000000000000000000};");
+ EXPECT_EQ("S s = {a,\n"
+ "\n"
+ " b};",
+ format("S s = {\n"
+ " a,\n"
+ "\n"
+ " b\n"
+ "};"));
+
+ // FIXME: This would fit into the column limit if we'd fit "{ {" on the first
+ // line. However, the formatting looks a bit off and this probably doesn't
+ // happen often in practice.
+ verifyFormat("static int Variable[1] = {\n"
+ " {1000000000000000000000000000000000000}};",
+ getLLVMStyleWithColumns(40));
+}
+
+TEST_F(FormatTest, DesignatedInitializers) {
+ verifyFormat("const struct A a = {.a = 1, .b = 2};");
+ verifyFormat("const struct A a = {.aaaaaaaaaa = 1,\n"
+ " .bbbbbbbbbb = 2,\n"
+ " .cccccccccc = 3,\n"
+ " .dddddddddd = 4,\n"
+ " .eeeeeeeeee = 5};");
+ verifyFormat("const struct Aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaa = {\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaa = 1,\n"
+ " .bbbbbbbbbbbbbbbbbbbbbbbbbbb = 2,\n"
+ " .ccccccccccccccccccccccccccc = 3,\n"
+ " .ddddddddddddddddddddddddddd = 4,\n"
+ " .eeeeeeeeeeeeeeeeeeeeeeeeeee = 5};");
+
+ verifyGoogleFormat("const struct A a = {.a = 1, .b = 2};");
+
+ verifyFormat("const struct A a = {[0] = 1, [1] = 2};");
+ verifyFormat("const struct A a = {[1] = aaaaaaaaaa,\n"
+ " [2] = bbbbbbbbbb,\n"
+ " [3] = cccccccccc,\n"
+ " [4] = dddddddddd,\n"
+ " [5] = eeeeeeeeee};");
+ verifyFormat("const struct Aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaa = {\n"
+ " [1] = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " [2] = bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb,\n"
+ " [3] = cccccccccccccccccccccccccccccccccccccc,\n"
+ " [4] = dddddddddddddddddddddddddddddddddddddd,\n"
+ " [5] = eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee};");
+}
+
+TEST_F(FormatTest, NestedStaticInitializers) {
+ verifyFormat("static A x = {{{}}};\n");
+ verifyFormat("static A x = {{{init1, init2, init3, init4},\n"
+ " {init1, init2, init3, init4}}};",
+ getLLVMStyleWithColumns(50));
+
+ verifyFormat("somes Status::global_reps[3] = {\n"
+ " {kGlobalRef, OK_CODE, NULL, NULL, NULL},\n"
+ " {kGlobalRef, CANCELLED_CODE, NULL, NULL, NULL},\n"
+ " {kGlobalRef, UNKNOWN_CODE, NULL, NULL, NULL}};",
+ getLLVMStyleWithColumns(60));
+ verifyGoogleFormat("SomeType Status::global_reps[3] = {\n"
+ " {kGlobalRef, OK_CODE, NULL, NULL, NULL},\n"
+ " {kGlobalRef, CANCELLED_CODE, NULL, NULL, NULL},\n"
+ " {kGlobalRef, UNKNOWN_CODE, NULL, NULL, NULL}};");
+ verifyFormat("CGRect cg_rect = {{rect.fLeft, rect.fTop},\n"
+ " {rect.fRight - rect.fLeft, rect.fBottom - "
+ "rect.fTop}};");
+
+ verifyFormat(
+ "SomeArrayOfSomeType a = {\n"
+ " {{1, 2, 3},\n"
+ " {1, 2, 3},\n"
+ " {111111111111111111111111111111, 222222222222222222222222222222,\n"
+ " 333333333333333333333333333333},\n"
+ " {1, 2, 3},\n"
+ " {1, 2, 3}}};");
+ verifyFormat(
+ "SomeArrayOfSomeType a = {\n"
+ " {{1, 2, 3}},\n"
+ " {{1, 2, 3}},\n"
+ " {{111111111111111111111111111111, 222222222222222222222222222222,\n"
+ " 333333333333333333333333333333}},\n"
+ " {{1, 2, 3}},\n"
+ " {{1, 2, 3}}};");
+
+ verifyFormat("struct {\n"
+ " unsigned bit;\n"
+ " const char *const name;\n"
+ "} kBitsToOs[] = {{kOsMac, \"Mac\"},\n"
+ " {kOsWin, \"Windows\"},\n"
+ " {kOsLinux, \"Linux\"},\n"
+ " {kOsCrOS, \"Chrome OS\"}};");
+ verifyFormat("struct {\n"
+ " unsigned bit;\n"
+ " const char *const name;\n"
+ "} kBitsToOs[] = {\n"
+ " {kOsMac, \"Mac\"},\n"
+ " {kOsWin, \"Windows\"},\n"
+ " {kOsLinux, \"Linux\"},\n"
+ " {kOsCrOS, \"Chrome OS\"},\n"
+ "};");
+}
+
+TEST_F(FormatTest, FormatsSmallMacroDefinitionsInSingleLine) {
+ verifyFormat("#define ALooooooooooooooooooooooooooooooooooooooongMacro("
+ " \\\n"
+ " aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)");
+}
+
+TEST_F(FormatTest, DoesNotBreakPureVirtualFunctionDefinition) {
+ verifyFormat("virtual void write(ELFWriter *writerrr,\n"
+ " OwningPtr<FileOutputBuffer> &buffer) = 0;");
+
+ // Do break defaulted and deleted functions.
+ verifyFormat("virtual void ~Deeeeeeeestructor() =\n"
+ " default;",
+ getLLVMStyleWithColumns(40));
+ verifyFormat("virtual void ~Deeeeeeeestructor() =\n"
+ " delete;",
+ getLLVMStyleWithColumns(40));
+}
+
+TEST_F(FormatTest, BreaksStringLiteralsOnlyInDefine) {
+ verifyFormat("# 1111 \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\" 2 3",
+ getLLVMStyleWithColumns(40));
+ verifyFormat("#line 11111 \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\"",
+ getLLVMStyleWithColumns(40));
+ EXPECT_EQ("#define Q \\\n"
+ " \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/\" \\\n"
+ " \"aaaaaaaa.cpp\"",
+ format("#define Q \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\"",
+ getLLVMStyleWithColumns(40)));
+}
+
+TEST_F(FormatTest, UnderstandsLinePPDirective) {
+ EXPECT_EQ("# 123 \"A string literal\"",
+ format(" # 123 \"A string literal\""));
+}
+
+TEST_F(FormatTest, LayoutUnknownPPDirective) {
+ EXPECT_EQ("#;", format("#;"));
+ verifyFormat("#\n;\n;\n;");
+}
+
+TEST_F(FormatTest, UnescapedEndOfLineEndsPPDirective) {
+ EXPECT_EQ("#line 42 \"test\"\n",
+ format("# \\\n line \\\n 42 \\\n \"test\"\n"));
+ EXPECT_EQ("#define A B\n", format("# \\\n define \\\n A \\\n B\n",
+ getLLVMStyleWithColumns(12)));
+}
+
+TEST_F(FormatTest, EndOfFileEndsPPDirective) {
+ EXPECT_EQ("#line 42 \"test\"",
+ format("# \\\n line \\\n 42 \\\n \"test\""));
+ EXPECT_EQ("#define A B", format("# \\\n define \\\n A \\\n B"));
+}
+
+TEST_F(FormatTest, DoesntRemoveUnknownTokens) {
+ verifyFormat("#define A \\x20");
+ verifyFormat("#define A \\ x20");
+ EXPECT_EQ("#define A \\ x20", format("#define A \\ x20"));
+ verifyFormat("#define A ''");
+ verifyFormat("#define A ''qqq");
+ verifyFormat("#define A `qqq");
+ verifyFormat("f(\"aaaa, bbbb, \"\\\"ccccc\\\"\");");
+ EXPECT_EQ("const char *c = STRINGIFY(\n"
+ "\\na : b);",
+ format("const char * c = STRINGIFY(\n"
+ "\\na : b);"));
+
+ verifyFormat("a\r\\");
+ verifyFormat("a\v\\");
+ verifyFormat("a\f\\");
+}
+
+TEST_F(FormatTest, IndentsPPDirectiveInReducedSpace) {
+ verifyFormat("#define A(BB)", getLLVMStyleWithColumns(13));
+ verifyFormat("#define A( \\\n BB)", getLLVMStyleWithColumns(12));
+ verifyFormat("#define A( \\\n A, B)", getLLVMStyleWithColumns(12));
+ // FIXME: We never break before the macro name.
+ verifyFormat("#define AA( \\\n B)", getLLVMStyleWithColumns(12));
+
+ verifyFormat("#define A A\n#define A A");
+ verifyFormat("#define A(X) A\n#define A A");
+
+ verifyFormat("#define Something Other", getLLVMStyleWithColumns(23));
+ verifyFormat("#define Something \\\n Other", getLLVMStyleWithColumns(22));
+}
+
+TEST_F(FormatTest, HandlePreprocessorDirectiveContext) {
+ EXPECT_EQ("// somecomment\n"
+ "#include \"a.h\"\n"
+ "#define A( \\\n"
+ " A, B)\n"
+ "#include \"b.h\"\n"
+ "// somecomment\n",
+ format(" // somecomment\n"
+ " #include \"a.h\"\n"
+ "#define A(A,\\\n"
+ " B)\n"
+ " #include \"b.h\"\n"
+ " // somecomment\n",
+ getLLVMStyleWithColumns(13)));
+}
+
+TEST_F(FormatTest, LayoutSingleHash) { EXPECT_EQ("#\na;", format("#\na;")); }
+
+TEST_F(FormatTest, LayoutCodeInMacroDefinitions) {
+ EXPECT_EQ("#define A \\\n"
+ " c; \\\n"
+ " e;\n"
+ "f;",
+ format("#define A c; e;\n"
+ "f;",
+ getLLVMStyleWithColumns(14)));
+}
+
+TEST_F(FormatTest, LayoutRemainingTokens) { EXPECT_EQ("{}", format("{}")); }
+
+TEST_F(FormatTest, MacroDefinitionInsideStatement) {
+ EXPECT_EQ("int x,\n"
+ "#define A\n"
+ " y;",
+ format("int x,\n#define A\ny;"));
+}
+
+TEST_F(FormatTest, HashInMacroDefinition) {
+ EXPECT_EQ("#define A(c) L#c", format("#define A(c) L#c", getLLVMStyle()));
+ verifyFormat("#define A \\\n b #c;", getLLVMStyleWithColumns(11));
+ verifyFormat("#define A \\\n"
+ " { \\\n"
+ " f(#c); \\\n"
+ " }",
+ getLLVMStyleWithColumns(11));
+
+ verifyFormat("#define A(X) \\\n"
+ " void function##X()",
+ getLLVMStyleWithColumns(22));
+
+ verifyFormat("#define A(a, b, c) \\\n"
+ " void a##b##c()",
+ getLLVMStyleWithColumns(22));
+
+ verifyFormat("#define A void # ## #", getLLVMStyleWithColumns(22));
+}
+
+TEST_F(FormatTest, RespectWhitespaceInMacroDefinitions) {
+ EXPECT_EQ("#define A (x)", format("#define A (x)"));
+ EXPECT_EQ("#define A(x)", format("#define A(x)"));
+
+ FormatStyle Style = getLLVMStyle();
+ Style.SpaceBeforeParens = FormatStyle::SBPO_Never;
+ verifyFormat("#define true ((foo)1)", Style);
+ Style.SpaceBeforeParens = FormatStyle::SBPO_Always;
+ verifyFormat("#define false((foo)0)", Style);
+}
+
+TEST_F(FormatTest, EmptyLinesInMacroDefinitions) {
+ EXPECT_EQ("#define A b;", format("#define A \\\n"
+ " \\\n"
+ " b;",
+ getLLVMStyleWithColumns(25)));
+ EXPECT_EQ("#define A \\\n"
+ " \\\n"
+ " a; \\\n"
+ " b;",
+ format("#define A \\\n"
+ " \\\n"
+ " a; \\\n"
+ " b;",
+ getLLVMStyleWithColumns(11)));
+ EXPECT_EQ("#define A \\\n"
+ " a; \\\n"
+ " \\\n"
+ " b;",
+ format("#define A \\\n"
+ " a; \\\n"
+ " \\\n"
+ " b;",
+ getLLVMStyleWithColumns(11)));
+}
+
+TEST_F(FormatTest, MacroDefinitionsWithIncompleteCode) {
+ verifyIncompleteFormat("#define A :");
+ verifyFormat("#define SOMECASES \\\n"
+ " case 1: \\\n"
+ " case 2\n",
+ getLLVMStyleWithColumns(20));
+ verifyFormat("#define MACRO(a) \\\n"
+ " if (a) \\\n"
+ " f(); \\\n"
+ " else \\\n"
+ " g()",
+ getLLVMStyleWithColumns(18));
+ verifyFormat("#define A template <typename T>");
+ verifyIncompleteFormat("#define STR(x) #x\n"
+ "f(STR(this_is_a_string_literal{));");
+ verifyFormat("#pragma omp threadprivate( \\\n"
+ " y)), // expected-warning",
+ getLLVMStyleWithColumns(28));
+ verifyFormat("#d, = };");
+ verifyFormat("#if \"a");
+ verifyIncompleteFormat("({\n"
+ "#define b \\\n"
+ " } \\\n"
+ " a\n"
+ "a",
+ getLLVMStyleWithColumns(15));
+ verifyFormat("#define A \\\n"
+ " { \\\n"
+ " {\n"
+ "#define B \\\n"
+ " } \\\n"
+ " }",
+ getLLVMStyleWithColumns(15));
+ verifyNoCrash("#if a\na(\n#else\n#endif\n{a");
+ verifyNoCrash("a={0,1\n#if a\n#else\n;\n#endif\n}");
+ verifyNoCrash("#if a\na(\n#else\n#endif\n) a {a,b,c,d,f,g};");
+ verifyNoCrash("#ifdef A\n a(\n #else\n #endif\n) = []() { \n)}");
+}
+
+TEST_F(FormatTest, MacrosWithoutTrailingSemicolon) {
+ verifyFormat("SOME_TYPE_NAME abc;"); // Gated on the newline.
+ EXPECT_EQ("class A : public QObject {\n"
+ " Q_OBJECT\n"
+ "\n"
+ " A() {}\n"
+ "};",
+ format("class A : public QObject {\n"
+ " Q_OBJECT\n"
+ "\n"
+ " A() {\n}\n"
+ "} ;"));
+ EXPECT_EQ("MACRO\n"
+ "/*static*/ int i;",
+ format("MACRO\n"
+ " /*static*/ int i;"));
+ EXPECT_EQ("SOME_MACRO\n"
+ "namespace {\n"
+ "void f();\n"
+ "} // namespace",
+ format("SOME_MACRO\n"
+ " namespace {\n"
+ "void f( );\n"
+ "} // namespace"));
+ // Only if the identifier contains at least 5 characters.
+ EXPECT_EQ("HTTP f();", format("HTTP\nf();"));
+ EXPECT_EQ("MACRO\nf();", format("MACRO\nf();"));
+ // Only if everything is upper case.
+ EXPECT_EQ("class A : public QObject {\n"
+ " Q_Object A() {}\n"
+ "};",
+ format("class A : public QObject {\n"
+ " Q_Object\n"
+ " A() {\n}\n"
+ "} ;"));
+
+ // Only if the next line can actually start an unwrapped line.
+ EXPECT_EQ("SOME_WEIRD_LOG_MACRO << SomeThing;",
+ format("SOME_WEIRD_LOG_MACRO\n"
+ "<< SomeThing;"));
+
+ verifyFormat("VISIT_GL_CALL(GenBuffers, void, (GLsizei n, GLuint* buffers), "
+ "(n, buffers))\n",
+ getChromiumStyle(FormatStyle::LK_Cpp));
+
+ // See PR41483
+ EXPECT_EQ("/**/ FOO(a)\n"
+ "FOO(b)",
+ format("/**/ FOO(a)\n"
+ "FOO(b)"));
+}
+
+TEST_F(FormatTest, MacroCallsWithoutTrailingSemicolon) {
+ EXPECT_EQ("INITIALIZE_PASS_BEGIN(ScopDetection, \"polly-detect\")\n"
+ "INITIALIZE_AG_DEPENDENCY(AliasAnalysis)\n"
+ "INITIALIZE_PASS_DEPENDENCY(DominatorTree)\n"
+ "class X {};\n"
+ "INITIALIZE_PASS_END(ScopDetection, \"polly-detect\")\n"
+ "int *createScopDetectionPass() { return 0; }",
+ format(" INITIALIZE_PASS_BEGIN(ScopDetection, \"polly-detect\")\n"
+ " INITIALIZE_AG_DEPENDENCY(AliasAnalysis)\n"
+ " INITIALIZE_PASS_DEPENDENCY(DominatorTree)\n"
+ " class X {};\n"
+ " INITIALIZE_PASS_END(ScopDetection, \"polly-detect\")\n"
+ " int *createScopDetectionPass() { return 0; }"));
+ // FIXME: We could probably treat IPC_BEGIN_MESSAGE_MAP/IPC_END_MESSAGE_MAP as
+ // braces, so that inner block is indented one level more.
+ EXPECT_EQ("int q() {\n"
+ " IPC_BEGIN_MESSAGE_MAP(WebKitTestController, message)\n"
+ " IPC_MESSAGE_HANDLER(xxx, qqq)\n"
+ " IPC_END_MESSAGE_MAP()\n"
+ "}",
+ format("int q() {\n"
+ " IPC_BEGIN_MESSAGE_MAP(WebKitTestController, message)\n"
+ " IPC_MESSAGE_HANDLER(xxx, qqq)\n"
+ " IPC_END_MESSAGE_MAP()\n"
+ "}"));
+
+ // Same inside macros.
+ EXPECT_EQ("#define LIST(L) \\\n"
+ " L(A) \\\n"
+ " L(B) \\\n"
+ " L(C)",
+ format("#define LIST(L) \\\n"
+ " L(A) \\\n"
+ " L(B) \\\n"
+ " L(C)",
+ getGoogleStyle()));
+
+ // These must not be recognized as macros.
+ EXPECT_EQ("int q() {\n"
+ " f(x);\n"
+ " f(x) {}\n"
+ " f(x)->g();\n"
+ " f(x)->*g();\n"
+ " f(x).g();\n"
+ " f(x) = x;\n"
+ " f(x) += x;\n"
+ " f(x) -= x;\n"
+ " f(x) *= x;\n"
+ " f(x) /= x;\n"
+ " f(x) %= x;\n"
+ " f(x) &= x;\n"
+ " f(x) |= x;\n"
+ " f(x) ^= x;\n"
+ " f(x) >>= x;\n"
+ " f(x) <<= x;\n"
+ " f(x)[y].z();\n"
+ " LOG(INFO) << x;\n"
+ " ifstream(x) >> x;\n"
+ "}\n",
+ format("int q() {\n"
+ " f(x)\n;\n"
+ " f(x)\n {}\n"
+ " f(x)\n->g();\n"
+ " f(x)\n->*g();\n"
+ " f(x)\n.g();\n"
+ " f(x)\n = x;\n"
+ " f(x)\n += x;\n"
+ " f(x)\n -= x;\n"
+ " f(x)\n *= x;\n"
+ " f(x)\n /= x;\n"
+ " f(x)\n %= x;\n"
+ " f(x)\n &= x;\n"
+ " f(x)\n |= x;\n"
+ " f(x)\n ^= x;\n"
+ " f(x)\n >>= x;\n"
+ " f(x)\n <<= x;\n"
+ " f(x)\n[y].z();\n"
+ " LOG(INFO)\n << x;\n"
+ " ifstream(x)\n >> x;\n"
+ "}\n"));
+ EXPECT_EQ("int q() {\n"
+ " F(x)\n"
+ " if (1) {\n"
+ " }\n"
+ " F(x)\n"
+ " while (1) {\n"
+ " }\n"
+ " F(x)\n"
+ " G(x);\n"
+ " F(x)\n"
+ " try {\n"
+ " Q();\n"
+ " } catch (...) {\n"
+ " }\n"
+ "}\n",
+ format("int q() {\n"
+ "F(x)\n"
+ "if (1) {}\n"
+ "F(x)\n"
+ "while (1) {}\n"
+ "F(x)\n"
+ "G(x);\n"
+ "F(x)\n"
+ "try { Q(); } catch (...) {}\n"
+ "}\n"));
+ EXPECT_EQ("class A {\n"
+ " A() : t(0) {}\n"
+ " A(int i) noexcept() : {}\n"
+ " A(X x)\n" // FIXME: function-level try blocks are broken.
+ " try : t(0) {\n"
+ " } catch (...) {\n"
+ " }\n"
+ "};",
+ format("class A {\n"
+ " A()\n : t(0) {}\n"
+ " A(int i)\n noexcept() : {}\n"
+ " A(X x)\n"
+ " try : t(0) {} catch (...) {}\n"
+ "};"));
+ FormatStyle Style = getLLVMStyle();
+ Style.BreakBeforeBraces = FormatStyle::BS_Custom;
+ Style.BraceWrapping.AfterControlStatement = FormatStyle::BWACS_Always;
+ Style.BraceWrapping.AfterFunction = true;
+ EXPECT_EQ("void f()\n"
+ "try\n"
+ "{\n"
+ "}",
+ format("void f() try {\n"
+ "}",
+ Style));
+ EXPECT_EQ("class SomeClass {\n"
+ "public:\n"
+ " SomeClass() EXCLUSIVE_LOCK_FUNCTION(mu_);\n"
+ "};",
+ format("class SomeClass {\n"
+ "public:\n"
+ " SomeClass()\n"
+ " EXCLUSIVE_LOCK_FUNCTION(mu_);\n"
+ "};"));
+ EXPECT_EQ("class SomeClass {\n"
+ "public:\n"
+ " SomeClass()\n"
+ " EXCLUSIVE_LOCK_FUNCTION(mu_);\n"
+ "};",
+ format("class SomeClass {\n"
+ "public:\n"
+ " SomeClass()\n"
+ " EXCLUSIVE_LOCK_FUNCTION(mu_);\n"
+ "};",
+ getLLVMStyleWithColumns(40)));
+
+ verifyFormat("MACRO(>)");
+
+ // Some macros contain an implicit semicolon.
+ Style = getLLVMStyle();
+ Style.StatementMacros.push_back("FOO");
+ verifyFormat("FOO(a) int b = 0;");
+ verifyFormat("FOO(a)\n"
+ "int b = 0;",
+ Style);
+ verifyFormat("FOO(a);\n"
+ "int b = 0;",
+ Style);
+ verifyFormat("FOO(argc, argv, \"4.0.2\")\n"
+ "int b = 0;",
+ Style);
+ verifyFormat("FOO()\n"
+ "int b = 0;",
+ Style);
+ verifyFormat("FOO\n"
+ "int b = 0;",
+ Style);
+ verifyFormat("void f() {\n"
+ " FOO(a)\n"
+ " return a;\n"
+ "}",
+ Style);
+ verifyFormat("FOO(a)\n"
+ "FOO(b)",
+ Style);
+ verifyFormat("int a = 0;\n"
+ "FOO(b)\n"
+ "int c = 0;",
+ Style);
+ verifyFormat("int a = 0;\n"
+ "int x = FOO(a)\n"
+ "int b = 0;",
+ Style);
+ verifyFormat("void foo(int a) { FOO(a) }\n"
+ "uint32_t bar() {}",
+ Style);
+}
+
+TEST_F(FormatTest, LayoutMacroDefinitionsStatementsSpanningBlocks) {
+ verifyFormat("#define A \\\n"
+ " f({ \\\n"
+ " g(); \\\n"
+ " });",
+ getLLVMStyleWithColumns(11));
+}
+
+TEST_F(FormatTest, IndentPreprocessorDirectives) {
+ FormatStyle Style = getLLVMStyle();
+ Style.IndentPPDirectives = FormatStyle::PPDIS_None;
+ Style.ColumnLimit = 40;
+ verifyFormat("#ifdef _WIN32\n"
+ "#define A 0\n"
+ "#ifdef VAR2\n"
+ "#define B 1\n"
+ "#include <someheader.h>\n"
+ "#define MACRO \\\n"
+ " some_very_long_func_aaaaaaaaaa();\n"
+ "#endif\n"
+ "#else\n"
+ "#define A 1\n"
+ "#endif",
+ Style);
+ Style.IndentPPDirectives = FormatStyle::PPDIS_AfterHash;
+ verifyFormat("#ifdef _WIN32\n"
+ "# define A 0\n"
+ "# ifdef VAR2\n"
+ "# define B 1\n"
+ "# include <someheader.h>\n"
+ "# define MACRO \\\n"
+ " some_very_long_func_aaaaaaaaaa();\n"
+ "# endif\n"
+ "#else\n"
+ "# define A 1\n"
+ "#endif",
+ Style);
+ verifyFormat("#if A\n"
+ "# define MACRO \\\n"
+ " void a(int x) { \\\n"
+ " b(); \\\n"
+ " c(); \\\n"
+ " d(); \\\n"
+ " e(); \\\n"
+ " f(); \\\n"
+ " }\n"
+ "#endif",
+ Style);
+ // Comments before include guard.
+ verifyFormat("// file comment\n"
+ "// file comment\n"
+ "#ifndef HEADER_H\n"
+ "#define HEADER_H\n"
+ "code();\n"
+ "#endif",
+ Style);
+ // Test with include guards.
+ verifyFormat("#ifndef HEADER_H\n"
+ "#define HEADER_H\n"
+ "code();\n"
+ "#endif",
+ Style);
+ // Include guards must have a #define with the same variable immediately
+ // after #ifndef.
+ verifyFormat("#ifndef NOT_GUARD\n"
+ "# define FOO\n"
+ "code();\n"
+ "#endif",
+ Style);
+
+ // Include guards must cover the entire file.
+ verifyFormat("code();\n"
+ "code();\n"
+ "#ifndef NOT_GUARD\n"
+ "# define NOT_GUARD\n"
+ "code();\n"
+ "#endif",
+ Style);
+ verifyFormat("#ifndef NOT_GUARD\n"
+ "# define NOT_GUARD\n"
+ "code();\n"
+ "#endif\n"
+ "code();",
+ Style);
+ // Test with trailing blank lines.
+ verifyFormat("#ifndef HEADER_H\n"
+ "#define HEADER_H\n"
+ "code();\n"
+ "#endif\n",
+ Style);
+ // Include guards don't have #else.
+ verifyFormat("#ifndef NOT_GUARD\n"
+ "# define NOT_GUARD\n"
+ "code();\n"
+ "#else\n"
+ "#endif",
+ Style);
+ verifyFormat("#ifndef NOT_GUARD\n"
+ "# define NOT_GUARD\n"
+ "code();\n"
+ "#elif FOO\n"
+ "#endif",
+ Style);
+ // Non-identifier #define after potential include guard.
+ verifyFormat("#ifndef FOO\n"
+ "# define 1\n"
+ "#endif\n",
+ Style);
+ // #if closes past last non-preprocessor line.
+ verifyFormat("#ifndef FOO\n"
+ "#define FOO\n"
+ "#if 1\n"
+ "int i;\n"
+ "# define A 0\n"
+ "#endif\n"
+ "#endif\n",
+ Style);
+ // Don't crash if there is an #elif directive without a condition.
+ verifyFormat("#if 1\n"
+ "int x;\n"
+ "#elif\n"
+ "int y;\n"
+ "#else\n"
+ "int z;\n"
+ "#endif",
+ Style);
+ // FIXME: This doesn't handle the case where there's code between the
+ // #ifndef and #define but all other conditions hold. This is because when
+ // the #define line is parsed, UnwrappedLineParser::Lines doesn't hold the
+ // previous code line yet, so we can't detect it.
+ EXPECT_EQ("#ifndef NOT_GUARD\n"
+ "code();\n"
+ "#define NOT_GUARD\n"
+ "code();\n"
+ "#endif",
+ format("#ifndef NOT_GUARD\n"
+ "code();\n"
+ "# define NOT_GUARD\n"
+ "code();\n"
+ "#endif",
+ Style));
+ // FIXME: This doesn't handle cases where legitimate preprocessor lines may
+ // be outside an include guard. Examples are #pragma once and
+ // #pragma GCC diagnostic, or anything else that does not change the meaning
+ // of the file if it's included multiple times.
+ EXPECT_EQ("#ifdef WIN32\n"
+ "# pragma once\n"
+ "#endif\n"
+ "#ifndef HEADER_H\n"
+ "# define HEADER_H\n"
+ "code();\n"
+ "#endif",
+ format("#ifdef WIN32\n"
+ "# pragma once\n"
+ "#endif\n"
+ "#ifndef HEADER_H\n"
+ "#define HEADER_H\n"
+ "code();\n"
+ "#endif",
+ Style));
+ // FIXME: This does not detect when there is a single non-preprocessor line
+ // in front of an include-guard-like structure where other conditions hold
+ // because ScopedLineState hides the line.
+ EXPECT_EQ("code();\n"
+ "#ifndef HEADER_H\n"
+ "#define HEADER_H\n"
+ "code();\n"
+ "#endif",
+ format("code();\n"
+ "#ifndef HEADER_H\n"
+ "# define HEADER_H\n"
+ "code();\n"
+ "#endif",
+ Style));
+ // Keep comments aligned with #, otherwise indent comments normally. These
+ // tests cannot use verifyFormat because messUp manipulates leading
+ // whitespace.
+ {
+ const char *Expected = ""
+ "void f() {\n"
+ "#if 1\n"
+ "// Preprocessor aligned.\n"
+ "# define A 0\n"
+ " // Code. Separated by blank line.\n"
+ "\n"
+ "# define B 0\n"
+ " // Code. Not aligned with #\n"
+ "# define C 0\n"
+ "#endif";
+ const char *ToFormat = ""
+ "void f() {\n"
+ "#if 1\n"
+ "// Preprocessor aligned.\n"
+ "# define A 0\n"
+ "// Code. Separated by blank line.\n"
+ "\n"
+ "# define B 0\n"
+ " // Code. Not aligned with #\n"
+ "# define C 0\n"
+ "#endif";
+ EXPECT_EQ(Expected, format(ToFormat, Style));
+ EXPECT_EQ(Expected, format(Expected, Style));
+ }
+ // Keep block quotes aligned.
+ {
+ const char *Expected = ""
+ "void f() {\n"
+ "#if 1\n"
+ "/* Preprocessor aligned. */\n"
+ "# define A 0\n"
+ " /* Code. Separated by blank line. */\n"
+ "\n"
+ "# define B 0\n"
+ " /* Code. Not aligned with # */\n"
+ "# define C 0\n"
+ "#endif";
+ const char *ToFormat = ""
+ "void f() {\n"
+ "#if 1\n"
+ "/* Preprocessor aligned. */\n"
+ "# define A 0\n"
+ "/* Code. Separated by blank line. */\n"
+ "\n"
+ "# define B 0\n"
+ " /* Code. Not aligned with # */\n"
+ "# define C 0\n"
+ "#endif";
+ EXPECT_EQ(Expected, format(ToFormat, Style));
+ EXPECT_EQ(Expected, format(Expected, Style));
+ }
+ // Keep comments aligned with un-indented directives.
+ {
+ const char *Expected = ""
+ "void f() {\n"
+ "// Preprocessor aligned.\n"
+ "#define A 0\n"
+ " // Code. Separated by blank line.\n"
+ "\n"
+ "#define B 0\n"
+ " // Code. Not aligned with #\n"
+ "#define C 0\n";
+ const char *ToFormat = ""
+ "void f() {\n"
+ "// Preprocessor aligned.\n"
+ "#define A 0\n"
+ "// Code. Separated by blank line.\n"
+ "\n"
+ "#define B 0\n"
+ " // Code. Not aligned with #\n"
+ "#define C 0\n";
+ EXPECT_EQ(Expected, format(ToFormat, Style));
+ EXPECT_EQ(Expected, format(Expected, Style));
+ }
+ // Test AfterHash with tabs.
+ {
+ FormatStyle Tabbed = Style;
+ Tabbed.UseTab = FormatStyle::UT_Always;
+ Tabbed.IndentWidth = 8;
+ Tabbed.TabWidth = 8;
+ verifyFormat("#ifdef _WIN32\n"
+ "#\tdefine A 0\n"
+ "#\tifdef VAR2\n"
+ "#\t\tdefine B 1\n"
+ "#\t\tinclude <someheader.h>\n"
+ "#\t\tdefine MACRO \\\n"
+ "\t\t\tsome_very_long_func_aaaaaaaaaa();\n"
+ "#\tendif\n"
+ "#else\n"
+ "#\tdefine A 1\n"
+ "#endif",
+ Tabbed);
+ }
+
+ // Regression test: Multiline-macro inside include guards.
+ verifyFormat("#ifndef HEADER_H\n"
+ "#define HEADER_H\n"
+ "#define A() \\\n"
+ " int i; \\\n"
+ " int j;\n"
+ "#endif // HEADER_H",
+ getLLVMStyleWithColumns(20));
+
+ Style.IndentPPDirectives = FormatStyle::PPDIS_BeforeHash;
+ // Basic before hash indent tests
+ verifyFormat("#ifdef _WIN32\n"
+ " #define A 0\n"
+ " #ifdef VAR2\n"
+ " #define B 1\n"
+ " #include <someheader.h>\n"
+ " #define MACRO \\\n"
+ " some_very_long_func_aaaaaaaaaa();\n"
+ " #endif\n"
+ "#else\n"
+ " #define A 1\n"
+ "#endif",
+ Style);
+ verifyFormat("#if A\n"
+ " #define MACRO \\\n"
+ " void a(int x) { \\\n"
+ " b(); \\\n"
+ " c(); \\\n"
+ " d(); \\\n"
+ " e(); \\\n"
+ " f(); \\\n"
+ " }\n"
+ "#endif",
+ Style);
+ // Keep comments aligned with indented directives. These
+ // tests cannot use verifyFormat because messUp manipulates leading
+ // whitespace.
+ {
+ const char *Expected = "void f() {\n"
+ "// Aligned to preprocessor.\n"
+ "#if 1\n"
+ " // Aligned to code.\n"
+ " int a;\n"
+ " #if 1\n"
+ " // Aligned to preprocessor.\n"
+ " #define A 0\n"
+ " // Aligned to code.\n"
+ " int b;\n"
+ " #endif\n"
+ "#endif\n"
+ "}";
+ const char *ToFormat = "void f() {\n"
+ "// Aligned to preprocessor.\n"
+ "#if 1\n"
+ "// Aligned to code.\n"
+ "int a;\n"
+ "#if 1\n"
+ "// Aligned to preprocessor.\n"
+ "#define A 0\n"
+ "// Aligned to code.\n"
+ "int b;\n"
+ "#endif\n"
+ "#endif\n"
+ "}";
+ EXPECT_EQ(Expected, format(ToFormat, Style));
+ EXPECT_EQ(Expected, format(Expected, Style));
+ }
+ {
+ const char *Expected = "void f() {\n"
+ "/* Aligned to preprocessor. */\n"
+ "#if 1\n"
+ " /* Aligned to code. */\n"
+ " int a;\n"
+ " #if 1\n"
+ " /* Aligned to preprocessor. */\n"
+ " #define A 0\n"
+ " /* Aligned to code. */\n"
+ " int b;\n"
+ " #endif\n"
+ "#endif\n"
+ "}";
+ const char *ToFormat = "void f() {\n"
+ "/* Aligned to preprocessor. */\n"
+ "#if 1\n"
+ "/* Aligned to code. */\n"
+ "int a;\n"
+ "#if 1\n"
+ "/* Aligned to preprocessor. */\n"
+ "#define A 0\n"
+ "/* Aligned to code. */\n"
+ "int b;\n"
+ "#endif\n"
+ "#endif\n"
+ "}";
+ EXPECT_EQ(Expected, format(ToFormat, Style));
+ EXPECT_EQ(Expected, format(Expected, Style));
+ }
+
+ // Test single comment before preprocessor
+ verifyFormat("// Comment\n"
+ "\n"
+ "#if 1\n"
+ "#endif",
+ Style);
+}
+
+TEST_F(FormatTest, FormatHashIfNotAtStartOfLine) {
+ verifyFormat("{\n { a #c; }\n}");
+}
+
+TEST_F(FormatTest, FormatUnbalancedStructuralElements) {
+ EXPECT_EQ("#define A \\\n { \\\n {\nint i;",
+ format("#define A { {\nint i;", getLLVMStyleWithColumns(11)));
+ EXPECT_EQ("#define A \\\n } \\\n }\nint i;",
+ format("#define A } }\nint i;", getLLVMStyleWithColumns(11)));
+}
+
+TEST_F(FormatTest, EscapedNewlines) {
+ FormatStyle Narrow = getLLVMStyleWithColumns(11);
+ EXPECT_EQ("#define A \\\n int i; \\\n int j;",
+ format("#define A \\\nint i;\\\n int j;", Narrow));
+ EXPECT_EQ("#define A\n\nint i;", format("#define A \\\n\n int i;"));
+ EXPECT_EQ("template <class T> f();", format("\\\ntemplate <class T> f();"));
+ EXPECT_EQ("/* \\ \\ \\\n */", format("\\\n/* \\ \\ \\\n */"));
+ EXPECT_EQ("<a\n\\\\\n>", format("<a\n\\\\\n>"));
+
+ FormatStyle AlignLeft = getLLVMStyle();
+ AlignLeft.AlignEscapedNewlines = FormatStyle::ENAS_Left;
+ EXPECT_EQ("#define MACRO(x) \\\n"
+ "private: \\\n"
+ " int x(int a);\n",
+ format("#define MACRO(x) \\\n"
+ "private: \\\n"
+ " int x(int a);\n",
+ AlignLeft));
+
+ // CRLF line endings
+ EXPECT_EQ("#define A \\\r\n int i; \\\r\n int j;",
+ format("#define A \\\r\nint i;\\\r\n int j;", Narrow));
+ EXPECT_EQ("#define A\r\n\r\nint i;", format("#define A \\\r\n\r\n int i;"));
+ EXPECT_EQ("template <class T> f();", format("\\\ntemplate <class T> f();"));
+ EXPECT_EQ("/* \\ \\ \\\r\n */", format("\\\r\n/* \\ \\ \\\r\n */"));
+ EXPECT_EQ("<a\r\n\\\\\r\n>", format("<a\r\n\\\\\r\n>"));
+ EXPECT_EQ("#define MACRO(x) \\\r\n"
+ "private: \\\r\n"
+ " int x(int a);\r\n",
+ format("#define MACRO(x) \\\r\n"
+ "private: \\\r\n"
+ " int x(int a);\r\n",
+ AlignLeft));
+
+ FormatStyle DontAlign = getLLVMStyle();
+ DontAlign.AlignEscapedNewlines = FormatStyle::ENAS_DontAlign;
+ DontAlign.MaxEmptyLinesToKeep = 3;
+ // FIXME: can't use verifyFormat here because the newline before
+ // "public:" is not inserted the first time it's reformatted
+ EXPECT_EQ("#define A \\\n"
+ " class Foo { \\\n"
+ " void bar(); \\\n"
+ "\\\n"
+ "\\\n"
+ "\\\n"
+ " public: \\\n"
+ " void baz(); \\\n"
+ " };",
+ format("#define A \\\n"
+ " class Foo { \\\n"
+ " void bar(); \\\n"
+ "\\\n"
+ "\\\n"
+ "\\\n"
+ " public: \\\n"
+ " void baz(); \\\n"
+ " };",
+ DontAlign));
+}
+
+TEST_F(FormatTest, CalculateSpaceOnConsecutiveLinesInMacro) {
+ verifyFormat("#define A \\\n"
+ " int v( \\\n"
+ " a); \\\n"
+ " int i;",
+ getLLVMStyleWithColumns(11));
+}
+
+TEST_F(FormatTest, MixingPreprocessorDirectivesAndNormalCode) {
+ EXPECT_EQ(
+ "#define ALooooooooooooooooooooooooooooooooooooooongMacro("
+ " \\\n"
+ " aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n"
+ "\n"
+ "AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n"
+ " aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n",
+ format(" #define ALooooooooooooooooooooooooooooooooooooooongMacro("
+ "\\\n"
+ "aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n"
+ " \n"
+ " AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n"
+ " aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n"));
+}
+
+TEST_F(FormatTest, LayoutStatementsAroundPreprocessorDirectives) {
+ EXPECT_EQ("int\n"
+ "#define A\n"
+ " a;",
+ format("int\n#define A\na;"));
+ verifyFormat("functionCallTo(\n"
+ " someOtherFunction(\n"
+ " withSomeParameters, whichInSequence,\n"
+ " areLongerThanALine(andAnotherCall,\n"
+ "#define A B\n"
+ " withMoreParamters,\n"
+ " whichStronglyInfluenceTheLayout),\n"
+ " andMoreParameters),\n"
+ " trailing);",
+ getLLVMStyleWithColumns(69));
+ verifyFormat("Foo::Foo()\n"
+ "#ifdef BAR\n"
+ " : baz(0)\n"
+ "#endif\n"
+ "{\n"
+ "}");
+ verifyFormat("void f() {\n"
+ " if (true)\n"
+ "#ifdef A\n"
+ " f(42);\n"
+ " x();\n"
+ "#else\n"
+ " g();\n"
+ " x();\n"
+ "#endif\n"
+ "}");
+ verifyFormat("void f(param1, param2,\n"
+ " param3,\n"
+ "#ifdef A\n"
+ " param4(param5,\n"
+ "#ifdef A1\n"
+ " param6,\n"
+ "#ifdef A2\n"
+ " param7),\n"
+ "#else\n"
+ " param8),\n"
+ " param9,\n"
+ "#endif\n"
+ " param10,\n"
+ "#endif\n"
+ " param11)\n"
+ "#else\n"
+ " param12)\n"
+ "#endif\n"
+ "{\n"
+ " x();\n"
+ "}",
+ getLLVMStyleWithColumns(28));
+ verifyFormat("#if 1\n"
+ "int i;");
+ verifyFormat("#if 1\n"
+ "#endif\n"
+ "#if 1\n"
+ "#else\n"
+ "#endif\n");
+ verifyFormat("DEBUG({\n"
+ " return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;\n"
+ "});\n"
+ "#if a\n"
+ "#else\n"
+ "#endif");
+
+ verifyIncompleteFormat("void f(\n"
+ "#if A\n"
+ ");\n"
+ "#else\n"
+ "#endif");
+}
+
+TEST_F(FormatTest, GraciouslyHandleIncorrectPreprocessorConditions) {
+ verifyFormat("#endif\n"
+ "#if B");
+}
+
+TEST_F(FormatTest, FormatsJoinedLinesOnSubsequentRuns) {
+ FormatStyle SingleLine = getLLVMStyle();
+ SingleLine.AllowShortIfStatementsOnASingleLine = FormatStyle::SIS_WithoutElse;
+ verifyFormat("#if 0\n"
+ "#elif 1\n"
+ "#endif\n"
+ "void foo() {\n"
+ " if (test) foo2();\n"
+ "}",
+ SingleLine);
+}
+
+TEST_F(FormatTest, LayoutBlockInsideParens) {
+ verifyFormat("functionCall({ int i; });");
+ verifyFormat("functionCall({\n"
+ " int i;\n"
+ " int j;\n"
+ "});");
+ verifyFormat("functionCall(\n"
+ " {\n"
+ " int i;\n"
+ " int j;\n"
+ " },\n"
+ " aaaa, bbbb, cccc);");
+ verifyFormat("functionA(functionB({\n"
+ " int i;\n"
+ " int j;\n"
+ " }),\n"
+ " aaaa, bbbb, cccc);");
+ verifyFormat("functionCall(\n"
+ " {\n"
+ " int i;\n"
+ " int j;\n"
+ " },\n"
+ " aaaa, bbbb, // comment\n"
+ " cccc);");
+ verifyFormat("functionA(functionB({\n"
+ " int i;\n"
+ " int j;\n"
+ " }),\n"
+ " aaaa, bbbb, // comment\n"
+ " cccc);");
+ verifyFormat("functionCall(aaaa, bbbb, { int i; });");
+ verifyFormat("functionCall(aaaa, bbbb, {\n"
+ " int i;\n"
+ " int j;\n"
+ "});");
+ verifyFormat(
+ "Aaa(\n" // FIXME: There shouldn't be a linebreak here.
+ " {\n"
+ " int i; // break\n"
+ " },\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb,\n"
+ " ccccccccccccccccc));");
+ verifyFormat("DEBUG({\n"
+ " if (a)\n"
+ " f();\n"
+ "});");
+}
+
+TEST_F(FormatTest, LayoutBlockInsideStatement) {
+ EXPECT_EQ("SOME_MACRO { int i; }\n"
+ "int i;",
+ format(" SOME_MACRO {int i;} int i;"));
+}
+
+TEST_F(FormatTest, LayoutNestedBlocks) {
+ verifyFormat("void AddOsStrings(unsigned bitmask) {\n"
+ " struct s {\n"
+ " int i;\n"
+ " };\n"
+ " s kBitsToOs[] = {{10}};\n"
+ " for (int i = 0; i < 10; ++i)\n"
+ " return;\n"
+ "}");
+ verifyFormat("call(parameter, {\n"
+ " something();\n"
+ " // Comment using all columns.\n"
+ " somethingelse();\n"
+ "});",
+ getLLVMStyleWithColumns(40));
+ verifyFormat("DEBUG( //\n"
+ " { f(); }, a);");
+ verifyFormat("DEBUG( //\n"
+ " {\n"
+ " f(); //\n"
+ " },\n"
+ " a);");
+
+ EXPECT_EQ("call(parameter, {\n"
+ " something();\n"
+ " // Comment too\n"
+ " // looooooooooong.\n"
+ " somethingElse();\n"
+ "});",
+ format("call(parameter, {\n"
+ " something();\n"
+ " // Comment too looooooooooong.\n"
+ " somethingElse();\n"
+ "});",
+ getLLVMStyleWithColumns(29)));
+ EXPECT_EQ("DEBUG({ int i; });", format("DEBUG({ int i; });"));
+ EXPECT_EQ("DEBUG({ // comment\n"
+ " int i;\n"
+ "});",
+ format("DEBUG({ // comment\n"
+ "int i;\n"
+ "});"));
+ EXPECT_EQ("DEBUG({\n"
+ " int i;\n"
+ "\n"
+ " // comment\n"
+ " int j;\n"
+ "});",
+ format("DEBUG({\n"
+ " int i;\n"
+ "\n"
+ " // comment\n"
+ " int j;\n"
+ "});"));
+
+ verifyFormat("DEBUG({\n"
+ " if (a)\n"
+ " return;\n"
+ "});");
+ verifyGoogleFormat("DEBUG({\n"
+ " if (a) return;\n"
+ "});");
+ FormatStyle Style = getGoogleStyle();
+ Style.ColumnLimit = 45;
+ verifyFormat("Debug(\n"
+ " aaaaa,\n"
+ " {\n"
+ " if (aaaaaaaaaaaaaaaaaaaaaaaa) return;\n"
+ " },\n"
+ " a);",
+ Style);
+
+ verifyFormat("SomeFunction({MACRO({ return output; }), b});");
+
+ verifyNoCrash("^{v^{a}}");
+}
+
+TEST_F(FormatTest, FormatNestedBlocksInMacros) {
+ EXPECT_EQ("#define MACRO() \\\n"
+ " Debug(aaa, /* force line break */ \\\n"
+ " { \\\n"
+ " int i; \\\n"
+ " int j; \\\n"
+ " })",
+ format("#define MACRO() Debug(aaa, /* force line break */ \\\n"
+ " { int i; int j; })",
+ getGoogleStyle()));
+
+ EXPECT_EQ("#define A \\\n"
+ " [] { \\\n"
+ " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx( \\\n"
+ " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx); \\\n"
+ " }",
+ format("#define A [] { xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx( \\\n"
+ "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx); }",
+ getGoogleStyle()));
+}
+
+TEST_F(FormatTest, PutEmptyBlocksIntoOneLine) {
+ EXPECT_EQ("{}", format("{}"));
+ verifyFormat("enum E {};");
+ verifyFormat("enum E {}");
+ FormatStyle Style = getLLVMStyle();
+ Style.SpaceInEmptyBlock = true;
+ EXPECT_EQ("void f() { }", format("void f() {}", Style));
+ Style.AllowShortBlocksOnASingleLine = FormatStyle::SBS_Empty;
+ EXPECT_EQ("while (true) { }", format("while (true) {}", Style));
+}
+
+TEST_F(FormatTest, FormatBeginBlockEndMacros) {
+ FormatStyle Style = getLLVMStyle();
+ Style.MacroBlockBegin = "^[A-Z_]+_BEGIN$";
+ Style.MacroBlockEnd = "^[A-Z_]+_END$";
+ verifyFormat("FOO_BEGIN\n"
+ " FOO_ENTRY\n"
+ "FOO_END",
+ Style);
+ verifyFormat("FOO_BEGIN\n"
+ " NESTED_FOO_BEGIN\n"
+ " NESTED_FOO_ENTRY\n"
+ " NESTED_FOO_END\n"
+ "FOO_END",
+ Style);
+ verifyFormat("FOO_BEGIN(Foo, Bar)\n"
+ " int x;\n"
+ " x = 1;\n"
+ "FOO_END(Baz)",
+ Style);
+}
+
+//===----------------------------------------------------------------------===//
+// Line break tests.
+//===----------------------------------------------------------------------===//
+
+TEST_F(FormatTest, PreventConfusingIndents) {
+ verifyFormat(
+ "void f() {\n"
+ " SomeLongMethodName(SomeReallyLongMethod(CallOtherReallyLongMethod(\n"
+ " parameter, parameter, parameter)),\n"
+ " SecondLongCall(parameter));\n"
+ "}");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " [aaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]\n"
+ " [aaaaaaaaaaaaaaaaaaaaaaaa]];");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaa<\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaa>;");
+ verifyFormat("int a = bbbb && ccc &&\n"
+ " fffff(\n"
+ "#define A Just forcing a new line\n"
+ " ddd);");
+}
+
+TEST_F(FormatTest, LineBreakingInBinaryExpressions) {
+ verifyFormat(
+ "bool aaaaaaa =\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaa).aaaaaaaaaaaaaaaaaaa() ||\n"
+ " bbbbbbbb();");
+ verifyFormat(
+ "bool aaaaaaa =\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaa).aaaaaaaaaaaaaaaaaaa() or\n"
+ " bbbbbbbb();");
+
+ verifyFormat("bool aaaaaaaaaaaaaaaaaaaaa =\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbb &&\n"
+ " ccccccccc == ddddddddddd;");
+ verifyFormat("bool aaaaaaaaaaaaaaaaaaaaa =\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbb and\n"
+ " ccccccccc == ddddddddddd;");
+ verifyFormat(
+ "bool aaaaaaaaaaaaaaaaaaaaa =\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa not_eq bbbbbbbbbbbbbbbbbb and\n"
+ " ccccccccc == ddddddddddd;");
+
+ verifyFormat("aaaaaa = aaaaaaa(aaaaaaa, // break\n"
+ " aaaaaa) &&\n"
+ " bbbbbb && cccccc;");
+ verifyFormat("aaaaaa = aaaaaaa(aaaaaaa, // break\n"
+ " aaaaaa) >>\n"
+ " bbbbbb;");
+ verifyFormat("aa = Whitespaces.addUntouchableComment(\n"
+ " SourceMgr.getSpellingColumnNumber(\n"
+ " TheLine.Last->FormatTok.Tok.getLocation()) -\n"
+ " 1);");
+
+ verifyFormat("if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n"
+ " bbbbbbbbbbbbbbbbbb) && // aaaaaaaaaaaaaaaa\n"
+ " cccccc) {\n}");
+ verifyFormat("if constexpr ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n"
+ " bbbbbbbbbbbbbbbbbb) && // aaaaaaaaaaa\n"
+ " cccccc) {\n}");
+ verifyFormat("if CONSTEXPR ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n"
+ " bbbbbbbbbbbbbbbbbb) && // aaaaaaaaaaa\n"
+ " cccccc) {\n}");
+ verifyFormat("b = a &&\n"
+ " // Comment\n"
+ " b.c && d;");
+
+ // If the LHS of a comparison is not a binary expression itself, the
+ // additional linebreak confuses many people.
+ verifyFormat(
+ "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) > 5) {\n"
+ "}");
+ verifyFormat(
+ "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n"
+ "}");
+ verifyFormat(
+ "if (aaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n"
+ "}");
+ verifyFormat(
+ "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) <=> 5) {\n"
+ "}");
+ // Even explicit parentheses stress the precedence enough to make the
+ // additional break unnecessary.
+ verifyFormat("if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n"
+ "}");
+ // This cases is borderline, but with the indentation it is still readable.
+ verifyFormat(
+ "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaa) > aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n"
+ "}",
+ getLLVMStyleWithColumns(75));
+
+ // If the LHS is a binary expression, we should still use the additional break
+ // as otherwise the formatting hides the operator precedence.
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n"
+ " 5) {\n"
+ "}");
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa <=>\n"
+ " 5) {\n"
+ "}");
+
+ FormatStyle OnePerLine = getLLVMStyle();
+ OnePerLine.BinPackParameters = false;
+ verifyFormat(
+ "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}",
+ OnePerLine);
+
+ verifyFormat("int i = someFunction(aaaaaaa, 0)\n"
+ " .aaa(aaaaaaaaaaaaa) *\n"
+ " aaaaaaa +\n"
+ " aaaaaaa;",
+ getLLVMStyleWithColumns(40));
+}
+
+TEST_F(FormatTest, ExpressionIndentation) {
+ verifyFormat("bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb +\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb &&\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >\n"
+ " ccccccccccccccccccccccccccccccccccccccccc;");
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}");
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}");
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}");
+ verifyFormat("if () {\n"
+ "} else if (aaaaa && bbbbb > // break\n"
+ " ccccc) {\n"
+ "}");
+ verifyFormat("if () {\n"
+ "} else if constexpr (aaaaa && bbbbb > // break\n"
+ " ccccc) {\n"
+ "}");
+ verifyFormat("if () {\n"
+ "} else if CONSTEXPR (aaaaa && bbbbb > // break\n"
+ " ccccc) {\n"
+ "}");
+ verifyFormat("if () {\n"
+ "} else if (aaaaa &&\n"
+ " bbbbb > // break\n"
+ " ccccc &&\n"
+ " ddddd) {\n"
+ "}");
+
+ // Presence of a trailing comment used to change indentation of b.
+ verifyFormat("return aaaaaaaaaaaaaaaaaaa +\n"
+ " b;\n"
+ "return aaaaaaaaaaaaaaaaaaa +\n"
+ " b; //",
+ getLLVMStyleWithColumns(30));
+}
+
+TEST_F(FormatTest, ExpressionIndentationBreakingBeforeOperators) {
+ // Not sure what the best system is here. Like this, the LHS can be found
+ // immediately above an operator (everything with the same or a higher
+ // indent). The RHS is aligned right of the operator and so compasses
+ // everything until something with the same indent as the operator is found.
+ // FIXME: Is this a good system?
+ FormatStyle Style = getLLVMStyle();
+ Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All;
+ verifyFormat(
+ "bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n"
+ " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n"
+ " && aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " > ccccccccccccccccccccccccccccccccccccccccc;",
+ Style);
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " == bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}",
+ Style);
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " == bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}",
+ Style);
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}",
+ Style);
+ verifyFormat("if () {\n"
+ "} else if (aaaaa\n"
+ " && bbbbb // break\n"
+ " > ccccc) {\n"
+ "}",
+ Style);
+ verifyFormat("return (a)\n"
+ " // comment\n"
+ " + b;",
+ Style);
+ verifyFormat(
+ "int aaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n"
+ " + cc;",
+ Style);
+
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " = aaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaa;",
+ Style);
+
+ // Forced by comments.
+ verifyFormat(
+ "unsigned ContentSize =\n"
+ " sizeof(int16_t) // DWARF ARange version number\n"
+ " + sizeof(int32_t) // Offset of CU in the .debug_info section\n"
+ " + sizeof(int8_t) // Pointer Size (in bytes)\n"
+ " + sizeof(int8_t); // Segment Size (in bytes)");
+
+ verifyFormat("return boost::fusion::at_c<0>(iiii).second\n"
+ " == boost::fusion::at_c<1>(iiii).second;",
+ Style);
+
+ Style.ColumnLimit = 60;
+ verifyFormat("zzzzzzzzzz\n"
+ " = bbbbbbbbbbbbbbbbb\n"
+ " >> aaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ Style);
+
+ Style.ColumnLimit = 80;
+ Style.IndentWidth = 4;
+ Style.TabWidth = 4;
+ Style.UseTab = FormatStyle::UT_Always;
+ Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign;
+ Style.AlignOperands = false;
+ EXPECT_EQ("return someVeryVeryLongConditionThatBarelyFitsOnALine\n"
+ "\t&& (someOtherLongishConditionPart1\n"
+ "\t\t|| someOtherEvenLongerNestedConditionPart2);",
+ format("return someVeryVeryLongConditionThatBarelyFitsOnALine && "
+ "(someOtherLongishConditionPart1 || "
+ "someOtherEvenLongerNestedConditionPart2);",
+ Style));
+}
+
+TEST_F(FormatTest, EnforcedOperatorWraps) {
+ // Here we'd like to wrap after the || operators, but a comment is forcing an
+ // earlier wrap.
+ verifyFormat("bool x = aaaaa //\n"
+ " || bbbbb\n"
+ " //\n"
+ " || cccc;");
+}
+
+TEST_F(FormatTest, NoOperandAlignment) {
+ FormatStyle Style = getLLVMStyle();
+ Style.AlignOperands = false;
+ verifyFormat("aaaaaaaaaaaaaa(aaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ Style);
+ Style.BreakBeforeBinaryOperators = FormatStyle::BOS_NonAssignment;
+ verifyFormat("bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n"
+ " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n"
+ " && aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " > ccccccccccccccccccccccccccccccccccccccccc;",
+ Style);
+
+ verifyFormat("int aaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n"
+ " + cc;",
+ Style);
+ verifyFormat("int a = aa\n"
+ " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n"
+ " * cccccccccccccccccccccccccccccccccccc;\n",
+ Style);
+
+ Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign;
+ verifyFormat("return (a > b\n"
+ " // comment1\n"
+ " // comment2\n"
+ " || c);",
+ Style);
+}
+
+TEST_F(FormatTest, BreakingBeforeNonAssigmentOperators) {
+ FormatStyle Style = getLLVMStyle();
+ Style.BreakBeforeBinaryOperators = FormatStyle::BOS_NonAssignment;
+ verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;",
+ Style);
+}
+
+TEST_F(FormatTest, AllowBinPackingInsideArguments) {
+ FormatStyle Style = getLLVMStyle();
+ Style.BreakBeforeBinaryOperators = FormatStyle::BOS_NonAssignment;
+ Style.BinPackArguments = false;
+ Style.ColumnLimit = 40;
+ verifyFormat("void test() {\n"
+ " someFunction(\n"
+ " this + argument + is + quite\n"
+ " + long + so + it + gets + wrapped\n"
+ " + but + remains + bin - packed);\n"
+ "}",
+ Style);
+ verifyFormat("void test() {\n"
+ " someFunction(arg1,\n"
+ " this + argument + is\n"
+ " + quite + long + so\n"
+ " + it + gets + wrapped\n"
+ " + but + remains + bin\n"
+ " - packed,\n"
+ " arg3);\n"
+ "}",
+ Style);
+ verifyFormat("void test() {\n"
+ " someFunction(\n"
+ " arg1,\n"
+ " this + argument + has\n"
+ " + anotherFunc(nested,\n"
+ " calls + whose\n"
+ " + arguments\n"
+ " + are + also\n"
+ " + wrapped,\n"
+ " in + addition)\n"
+ " + to + being + bin - packed,\n"
+ " arg3);\n"
+ "}",
+ Style);
+
+ Style.BreakBeforeBinaryOperators = FormatStyle::BOS_None;
+ verifyFormat("void test() {\n"
+ " someFunction(\n"
+ " arg1,\n"
+ " this + argument + has +\n"
+ " anotherFunc(nested,\n"
+ " calls + whose +\n"
+ " arguments +\n"
+ " are + also +\n"
+ " wrapped,\n"
+ " in + addition) +\n"
+ " to + being + bin - packed,\n"
+ " arg3);\n"
+ "}",
+ Style);
+}
+
+TEST_F(FormatTest, ConstructorInitializers) {
+ verifyFormat("Constructor() : Initializer(FitsOnTheLine) {}");
+ verifyFormat("Constructor() : Inttializer(FitsOnTheLine) {}",
+ getLLVMStyleWithColumns(45));
+ verifyFormat("Constructor()\n"
+ " : Inttializer(FitsOnTheLine) {}",
+ getLLVMStyleWithColumns(44));
+ verifyFormat("Constructor()\n"
+ " : Inttializer(FitsOnTheLine) {}",
+ getLLVMStyleWithColumns(43));
+
+ verifyFormat("template <typename T>\n"
+ "Constructor() : Initializer(FitsOnTheLine) {}",
+ getLLVMStyleWithColumns(45));
+
+ verifyFormat(
+ "SomeClass::Constructor()\n"
+ " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}");
+
+ verifyFormat(
+ "SomeClass::Constructor()\n"
+ " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}");
+ verifyFormat(
+ "SomeClass::Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}");
+ verifyFormat("Constructor(aaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " : aaaaaaaaaa(aaaaaa) {}");
+
+ verifyFormat("Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaaaaaaaaaaaa() {}");
+
+ verifyFormat("Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}");
+
+ verifyFormat("Constructor(int Parameter = 0)\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaa(aaaaaaaaaaaaaaaaa) {}");
+ verifyFormat("Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbbbbb(b) {\n"
+ "}",
+ getLLVMStyleWithColumns(60));
+ verifyFormat("Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaa(aaaa, aaaa)) {}");
+
+ // Here a line could be saved by splitting the second initializer onto two
+ // lines, but that is not desirable.
+ verifyFormat("Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaa(aaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaaaaaaaaaat(aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}");
+
+ FormatStyle OnePerLine = getLLVMStyle();
+ OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true;
+ OnePerLine.AllowAllParametersOfDeclarationOnNextLine = false;
+ verifyFormat("SomeClass::Constructor()\n"
+ " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}",
+ OnePerLine);
+ verifyFormat("SomeClass::Constructor()\n"
+ " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), // Some comment\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}",
+ OnePerLine);
+ verifyFormat("MyClass::MyClass(int var)\n"
+ " : some_var_(var), // 4 space indent\n"
+ " some_other_var_(var + 1) { // lined up\n"
+ "}",
+ OnePerLine);
+ verifyFormat("Constructor()\n"
+ " : aaaaa(aaaaaa),\n"
+ " aaaaa(aaaaaa),\n"
+ " aaaaa(aaaaaa),\n"
+ " aaaaa(aaaaaa),\n"
+ " aaaaa(aaaaaa) {}",
+ OnePerLine);
+ verifyFormat("Constructor()\n"
+ " : aaaaa(aaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaa) {}",
+ OnePerLine);
+ OnePerLine.BinPackParameters = false;
+ verifyFormat(
+ "Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaa().aaa(),\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}",
+ OnePerLine);
+ OnePerLine.ColumnLimit = 60;
+ verifyFormat("Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a),\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbb(b) {}",
+ OnePerLine);
+
+ EXPECT_EQ("Constructor()\n"
+ " : // Comment forcing unwanted break.\n"
+ " aaaa(aaaa) {}",
+ format("Constructor() :\n"
+ " // Comment forcing unwanted break.\n"
+ " aaaa(aaaa) {}"));
+}
+
+TEST_F(FormatTest, AllowAllConstructorInitializersOnNextLine) {
+ FormatStyle Style = getLLVMStyle();
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeComma;
+ Style.ColumnLimit = 60;
+ Style.ConstructorInitializerAllOnOneLineOrOnePerLine = true;
+ Style.AllowAllConstructorInitializersOnNextLine = true;
+ Style.BinPackParameters = false;
+
+ for (int i = 0; i < 4; ++i) {
+ // Test all combinations of parameters that should not have an effect.
+ Style.AllowAllParametersOfDeclarationOnNextLine = i & 1;
+ Style.AllowAllArgumentsOnNextLine = i & 2;
+
+ Style.AllowAllConstructorInitializersOnNextLine = true;
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeComma;
+ verifyFormat("Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+ verifyFormat("Constructor() : a(a), b(b) {}", Style);
+
+ Style.AllowAllConstructorInitializersOnNextLine = false;
+ verifyFormat("Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a)\n"
+ " , bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+ verifyFormat("Constructor() : a(a), b(b) {}", Style);
+
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeColon;
+ Style.AllowAllConstructorInitializersOnNextLine = true;
+ verifyFormat("Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllConstructorInitializersOnNextLine = false;
+ verifyFormat("Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a),\n"
+ " bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_AfterColon;
+ Style.AllowAllConstructorInitializersOnNextLine = true;
+ verifyFormat("Constructor() :\n"
+ " aaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllConstructorInitializersOnNextLine = false;
+ verifyFormat("Constructor() :\n"
+ " aaaaaaaaaaaaaaaaaa(a),\n"
+ " bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+ }
+
+ // Test interactions between AllowAllParametersOfDeclarationOnNextLine and
+ // AllowAllConstructorInitializersOnNextLine in all
+ // BreakConstructorInitializers modes
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeComma;
+ Style.AllowAllParametersOfDeclarationOnNextLine = true;
+ Style.AllowAllConstructorInitializersOnNextLine = false;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa, int bbbbbbbbbbbbb)\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a)\n"
+ " , bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllConstructorInitializersOnNextLine = true;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int bbbbbbbbbbbbb,\n"
+ " int cccccccccccccccc)\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllParametersOfDeclarationOnNextLine = false;
+ Style.AllowAllConstructorInitializersOnNextLine = false;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int bbbbbbbbbbbbb)\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a)\n"
+ " , bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeColon;
+
+ Style.AllowAllParametersOfDeclarationOnNextLine = true;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa, int bbbbbbbbbbbbb)\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a),\n"
+ " bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllConstructorInitializersOnNextLine = true;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int bbbbbbbbbbbbb,\n"
+ " int cccccccccccccccc)\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllParametersOfDeclarationOnNextLine = false;
+ Style.AllowAllConstructorInitializersOnNextLine = false;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int bbbbbbbbbbbbb)\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a),\n"
+ " bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_AfterColon;
+ Style.AllowAllParametersOfDeclarationOnNextLine = true;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa, int bbbbbbbbbbbbb) :\n"
+ " aaaaaaaaaaaaaaaaaaaa(a),\n"
+ " bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllConstructorInitializersOnNextLine = true;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int bbbbbbbbbbbbb,\n"
+ " int cccccccccccccccc) :\n"
+ " aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllParametersOfDeclarationOnNextLine = false;
+ Style.AllowAllConstructorInitializersOnNextLine = false;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int bbbbbbbbbbbbb) :\n"
+ " aaaaaaaaaaaaaaaaaaaa(a),\n"
+ " bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+}
+
+TEST_F(FormatTest, AllowAllArgumentsOnNextLine) {
+ FormatStyle Style = getLLVMStyle();
+ Style.ColumnLimit = 60;
+ Style.BinPackArguments = false;
+ for (int i = 0; i < 4; ++i) {
+ // Test all combinations of parameters that should not have an effect.
+ Style.AllowAllParametersOfDeclarationOnNextLine = i & 1;
+ Style.AllowAllConstructorInitializersOnNextLine = i & 2;
+
+ Style.AllowAllArgumentsOnNextLine = true;
+ verifyFormat("void foo() {\n"
+ " FunctionCallWithReallyLongName(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbb);\n"
+ "}",
+ Style);
+ Style.AllowAllArgumentsOnNextLine = false;
+ verifyFormat("void foo() {\n"
+ " FunctionCallWithReallyLongName(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " bbbbbbbbbbbb);\n"
+ "}",
+ Style);
+
+ Style.AllowAllArgumentsOnNextLine = true;
+ verifyFormat("void foo() {\n"
+ " auto VariableWithReallyLongName = {\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbb};\n"
+ "}",
+ Style);
+ Style.AllowAllArgumentsOnNextLine = false;
+ verifyFormat("void foo() {\n"
+ " auto VariableWithReallyLongName = {\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " bbbbbbbbbbbb};\n"
+ "}",
+ Style);
+ }
+
+ // This parameter should not affect declarations.
+ Style.BinPackParameters = false;
+ Style.AllowAllArgumentsOnNextLine = false;
+ Style.AllowAllParametersOfDeclarationOnNextLine = true;
+ verifyFormat("void FunctionCallWithReallyLongName(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaa, int bbbbbbbbbbbb);",
+ Style);
+ Style.AllowAllParametersOfDeclarationOnNextLine = false;
+ verifyFormat("void FunctionCallWithReallyLongName(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int bbbbbbbbbbbb);",
+ Style);
+}
+
+TEST_F(FormatTest, BreakConstructorInitializersAfterColon) {
+ FormatStyle Style = getLLVMStyle();
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_AfterColon;
+
+ verifyFormat("Constructor() : Initializer(FitsOnTheLine) {}");
+ verifyFormat("Constructor() : Initializer(FitsOnTheLine) {}",
+ getStyleWithColumns(Style, 45));
+ verifyFormat("Constructor() :\n"
+ " Initializer(FitsOnTheLine) {}",
+ getStyleWithColumns(Style, 44));
+ verifyFormat("Constructor() :\n"
+ " Initializer(FitsOnTheLine) {}",
+ getStyleWithColumns(Style, 43));
+
+ verifyFormat("template <typename T>\n"
+ "Constructor() : Initializer(FitsOnTheLine) {}",
+ getStyleWithColumns(Style, 50));
+ Style.ConstructorInitializerAllOnOneLineOrOnePerLine = true;
+ verifyFormat(
+ "SomeClass::Constructor() :\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}",
+ Style);
+
+ Style.ConstructorInitializerAllOnOneLineOrOnePerLine = false;
+ verifyFormat(
+ "SomeClass::Constructor() :\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}",
+ Style);
+
+ verifyFormat(
+ "SomeClass::Constructor() :\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}",
+ Style);
+ verifyFormat(
+ "SomeClass::Constructor() :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}",
+ Style);
+ verifyFormat("Constructor(aaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) :\n"
+ " aaaaaaaaaa(aaaaaa) {}",
+ Style);
+
+ verifyFormat("Constructor() :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaaaaaaaaaaaa() {}",
+ Style);
+
+ verifyFormat("Constructor() :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}",
+ Style);
+
+ verifyFormat("Constructor(int Parameter = 0) :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaa(aaaaaaaaaaaaaaaaa) {}",
+ Style);
+ verifyFormat("Constructor() :\n"
+ " aaaaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbbbbb(b) {\n"
+ "}",
+ getStyleWithColumns(Style, 60));
+ verifyFormat("Constructor() :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaa(aaaa, aaaa)) {}",
+ Style);
+
+ // Here a line could be saved by splitting the second initializer onto two
+ // lines, but that is not desirable.
+ verifyFormat("Constructor() :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaa(aaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaaaaaaaaaat(aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}",
+ Style);
+
+ FormatStyle OnePerLine = Style;
+ OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true;
+ OnePerLine.AllowAllConstructorInitializersOnNextLine = false;
+ verifyFormat("SomeClass::Constructor() :\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}",
+ OnePerLine);
+ verifyFormat("SomeClass::Constructor() :\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa), // Some comment\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}",
+ OnePerLine);
+ verifyFormat("MyClass::MyClass(int var) :\n"
+ " some_var_(var), // 4 space indent\n"
+ " some_other_var_(var + 1) { // lined up\n"
+ "}",
+ OnePerLine);
+ verifyFormat("Constructor() :\n"
+ " aaaaa(aaaaaa),\n"
+ " aaaaa(aaaaaa),\n"
+ " aaaaa(aaaaaa),\n"
+ " aaaaa(aaaaaa),\n"
+ " aaaaa(aaaaaa) {}",
+ OnePerLine);
+ verifyFormat("Constructor() :\n"
+ " aaaaa(aaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaa) {}",
+ OnePerLine);
+ OnePerLine.BinPackParameters = false;
+ verifyFormat("Constructor() :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaa().aaa(),\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}",
+ OnePerLine);
+ OnePerLine.ColumnLimit = 60;
+ verifyFormat("Constructor() :\n"
+ " aaaaaaaaaaaaaaaaaaaa(a),\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbb(b) {}",
+ OnePerLine);
+
+ EXPECT_EQ("Constructor() :\n"
+ " // Comment forcing unwanted break.\n"
+ " aaaa(aaaa) {}",
+ format("Constructor() :\n"
+ " // Comment forcing unwanted break.\n"
+ " aaaa(aaaa) {}",
+ Style));
+
+ Style.ColumnLimit = 0;
+ verifyFormat("SomeClass::Constructor() :\n"
+ " a(a) {}",
+ Style);
+ verifyFormat("SomeClass::Constructor() noexcept :\n"
+ " a(a) {}",
+ Style);
+ verifyFormat("SomeClass::Constructor() :\n"
+ " a(a), b(b), c(c) {}",
+ Style);
+ verifyFormat("SomeClass::Constructor() :\n"
+ " a(a) {\n"
+ " foo();\n"
+ " bar();\n"
+ "}",
+ Style);
+
+ Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None;
+ verifyFormat("SomeClass::Constructor() :\n"
+ " a(a), b(b), c(c) {\n"
+ "}",
+ Style);
+ verifyFormat("SomeClass::Constructor() :\n"
+ " a(a) {\n"
+ "}",
+ Style);
+
+ Style.ColumnLimit = 80;
+ Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All;
+ Style.ConstructorInitializerIndentWidth = 2;
+ verifyFormat("SomeClass::Constructor() : a(a), b(b), c(c) {}", Style);
+ verifyFormat("SomeClass::Constructor() :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb {}",
+ Style);
+
+ // `ConstructorInitializerIndentWidth` actually applies to InheritanceList as
+ // well
+ Style.BreakInheritanceList = FormatStyle::BILS_BeforeColon;
+ verifyFormat(
+ "class SomeClass\n"
+ " : public aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " public bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb {};",
+ Style);
+ Style.BreakInheritanceList = FormatStyle::BILS_BeforeComma;
+ verifyFormat(
+ "class SomeClass\n"
+ " : public aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " , public bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb {};",
+ Style);
+ Style.BreakInheritanceList = FormatStyle::BILS_AfterColon;
+ verifyFormat(
+ "class SomeClass :\n"
+ " public aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " public bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb {};",
+ Style);
+}
+
+#ifndef EXPENSIVE_CHECKS
+// Expensive checks enables libstdc++ checking which includes validating the
+// state of ranges used in std::priority_queue - this blows out the
+// runtime/scalability of the function and makes this test unacceptably slow.
+TEST_F(FormatTest, MemoizationTests) {
+ // This breaks if the memoization lookup does not take \c Indent and
+ // \c LastSpace into account.
+ verifyFormat(
+ "extern CFRunLoopTimerRef\n"
+ "CFRunLoopTimerCreate(CFAllocatorRef allocato, CFAbsoluteTime fireDate,\n"
+ " CFTimeInterval interval, CFOptionFlags flags,\n"
+ " CFIndex order, CFRunLoopTimerCallBack callout,\n"
+ " CFRunLoopTimerContext *context) {}");
+
+ // Deep nesting somewhat works around our memoization.
+ verifyFormat(
+ "aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n"
+ " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n"
+ " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n"
+ " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n"
+ " aaaaa())))))))))))))))))))))))))))))))))))))));",
+ getLLVMStyleWithColumns(65));
+ verifyFormat(
+ "aaaaa(\n"
+ " aaaaa,\n"
+ " aaaaa(\n"
+ " aaaaa,\n"
+ " aaaaa(\n"
+ " aaaaa,\n"
+ " aaaaa(\n"
+ " aaaaa,\n"
+ " aaaaa(\n"
+ " aaaaa,\n"
+ " aaaaa(\n"
+ " aaaaa,\n"
+ " aaaaa(\n"
+ " aaaaa,\n"
+ " aaaaa(\n"
+ " aaaaa,\n"
+ " aaaaa(\n"
+ " aaaaa,\n"
+ " aaaaa(\n"
+ " aaaaa,\n"
+ " aaaaa(\n"
+ " aaaaa,\n"
+ " aaaaa(\n"
+ " aaaaa,\n"
+ " aaaaa))))))))))));",
+ getLLVMStyleWithColumns(65));
+ verifyFormat(
+ "a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(), a), a), a), a),\n"
+ " a),\n"
+ " a),\n"
+ " a),\n"
+ " a),\n"
+ " a),\n"
+ " a),\n"
+ " a),\n"
+ " a),\n"
+ " a),\n"
+ " a),\n"
+ " a),\n"
+ " a),\n"
+ " a),\n"
+ " a),\n"
+ " a),\n"
+ " a),\n"
+ " a)",
+ getLLVMStyleWithColumns(65));
+
+ // This test takes VERY long when memoization is broken.
+ FormatStyle OnePerLine = getLLVMStyle();
+ OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true;
+ OnePerLine.BinPackParameters = false;
+ std::string input = "Constructor()\n"
+ " : aaaa(a,\n";
+ for (unsigned i = 0, e = 80; i != e; ++i) {
+ input += " a,\n";
+ }
+ input += " a) {}";
+ verifyFormat(input, OnePerLine);
+}
+#endif
+
+TEST_F(FormatTest, BreaksAsHighAsPossible) {
+ verifyFormat(
+ "void f() {\n"
+ " if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaa && aaaaaaaaaaaaaaaaaaaaaaaaaa) ||\n"
+ " (bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb && bbbbbbbbbbbbbbbbbbbbbbbbbb))\n"
+ " f();\n"
+ "}");
+ verifyFormat("if (Intervals[i].getRange().getFirst() <\n"
+ " Intervals[i - 1].getRange().getLast()) {\n}");
+}
+
+TEST_F(FormatTest, BreaksFunctionDeclarations) {
+ // Principially, we break function declarations in a certain order:
+ // 1) break amongst arguments.
+ verifyFormat("Aaaaaaaaaaaaaa bbbbbbbbbbbbbb(Cccccccccccccc cccccccccccccc,\n"
+ " Cccccccccccccc cccccccccccccc);");
+ verifyFormat("template <class TemplateIt>\n"
+ "SomeReturnType SomeFunction(TemplateIt begin, TemplateIt end,\n"
+ " TemplateIt *stop) {}");
+
+ // 2) break after return type.
+ verifyFormat(
+ "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ "bbbbbbbbbbbbbb(Cccccccccccccc cccccccccccccccccccccccccc);",
+ getGoogleStyle());
+
+ // 3) break after (.
+ verifyFormat(
+ "Aaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbb(\n"
+ " Cccccccccccccccccccccccccccccc cccccccccccccccccccccccccccccccc);",
+ getGoogleStyle());
+
+ // 4) break before after nested name specifiers.
+ verifyFormat(
+ "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ "SomeClasssssssssssssssssssssssssssssssssssssss::\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(Cccccccccccccc cccccccccc);",
+ getGoogleStyle());
+
+ // However, there are exceptions, if a sufficient amount of lines can be
+ // saved.
+ // FIXME: The precise cut-offs wrt. the number of saved lines might need some
+ // more adjusting.
+ verifyFormat("Aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb(Cccccccccccccc cccccccccc,\n"
+ " Cccccccccccccc cccccccccc,\n"
+ " Cccccccccccccc cccccccccc,\n"
+ " Cccccccccccccc cccccccccc,\n"
+ " Cccccccccccccc cccccccccc);");
+ verifyFormat(
+ "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ "bbbbbbbbbbb(Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n"
+ " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n"
+ " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc);",
+ getGoogleStyle());
+ verifyFormat(
+ "Aaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(Cccccccccccccc cccccccccc,\n"
+ " Cccccccccccccc cccccccccc,\n"
+ " Cccccccccccccc cccccccccc,\n"
+ " Cccccccccccccc cccccccccc,\n"
+ " Cccccccccccccc cccccccccc,\n"
+ " Cccccccccccccc cccccccccc,\n"
+ " Cccccccccccccc cccccccccc);");
+ verifyFormat("Aaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n"
+ " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n"
+ " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n"
+ " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n"
+ " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc);");
+
+ // Break after multi-line parameters.
+ verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " bbbb bbbb);");
+ verifyFormat("void SomeLoooooooooooongFunction(\n"
+ " std::unique_ptr<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int bbbbbbbbbbbbb);");
+
+ // Treat overloaded operators like other functions.
+ verifyFormat("SomeLoooooooooooooooooooooooooogType\n"
+ "operator>(const SomeLoooooooooooooooooooooooooogType &other);");
+ verifyFormat("SomeLoooooooooooooooooooooooooogType\n"
+ "operator>>(const SomeLooooooooooooooooooooooooogType &other);");
+ verifyFormat("SomeLoooooooooooooooooooooooooogType\n"
+ "operator<<(const SomeLooooooooooooooooooooooooogType &other);");
+ verifyGoogleFormat(
+ "SomeLoooooooooooooooooooooooooooooogType operator>>(\n"
+ " const SomeLooooooooogType &a, const SomeLooooooooogType &b);");
+ verifyGoogleFormat(
+ "SomeLoooooooooooooooooooooooooooooogType operator<<(\n"
+ " const SomeLooooooooogType &a, const SomeLooooooooogType &b);");
+ verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa = 1);");
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaa\n"
+ "aaaaaaaaaaaaaaaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaa = 1);");
+ verifyGoogleFormat(
+ "typename aaaaaaaaaa<aaaaaa>::aaaaaaaaaaa\n"
+ "aaaaaaaaaa<aaaaaa>::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " bool *aaaaaaaaaaaaaaaaaa, bool *aa) {}");
+ verifyGoogleFormat("template <typename T>\n"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ "aaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaa);");
+
+ FormatStyle Style = getLLVMStyle();
+ Style.PointerAlignment = FormatStyle::PAS_Left;
+ verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaa* const aaaaaaaaaaaa) {}",
+ Style);
+ verifyFormat("void aaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}",
+ Style);
+}
+
+TEST_F(FormatTest, DontBreakBeforeQualifiedOperator) {
+ // Regression test for https://bugs.llvm.org/show_bug.cgi?id=40516:
+ // Prefer keeping `::` followed by `operator` together.
+ EXPECT_EQ("const aaaa::bbbbbbb &\n"
+ "ccccccccc::operator++() {\n"
+ " stuff();\n"
+ "}",
+ format("const aaaa::bbbbbbb\n"
+ "&ccccccccc::operator++() { stuff(); }",
+ getLLVMStyleWithColumns(40)));
+}
+
+TEST_F(FormatTest, TrailingReturnType) {
+ verifyFormat("auto foo() -> int;\n");
+ // correct trailing return type spacing
+ verifyFormat("auto operator->() -> int;\n");
+ verifyFormat("auto operator++(int) -> int;\n");
+
+ verifyFormat("struct S {\n"
+ " auto bar() const -> int;\n"
+ "};");
+ verifyFormat("template <size_t Order, typename T>\n"
+ "auto load_img(const std::string &filename)\n"
+ " -> alias::tensor<Order, T, mem::tag::cpu> {}");
+ verifyFormat("auto SomeFunction(A aaaaaaaaaaaaaaaaaaaaa) const\n"
+ " -> decltype(f(aaaaaaaaaaaaaaaaaaaaa)) {}");
+ verifyFormat("auto doSomething(Aaaaaa *aaaaaa) -> decltype(aaaaaa->f()) {}");
+ verifyFormat("template <typename T>\n"
+ "auto aaaaaaaaaaaaaaaaaaaaaa(T t)\n"
+ " -> decltype(eaaaaaaaaaaaaaaa<T>(t.a).aaaaaaaa());");
+
+ // Not trailing return types.
+ verifyFormat("void f() { auto a = b->c(); }");
+}
+
+TEST_F(FormatTest, DeductionGuides) {
+ verifyFormat("template <class T> A(const T &, const T &) -> A<T &>;");
+ verifyFormat("template <class T> explicit A(T &, T &&) -> A<T>;");
+ verifyFormat("template <class... Ts> S(Ts...) -> S<Ts...>;");
+ verifyFormat(
+ "template <class... T>\n"
+ "array(T &&... t) -> array<std::common_type_t<T...>, sizeof...(T)>;");
+ verifyFormat("template <class T> A() -> A<decltype(p->foo<3>())>;");
+ verifyFormat("template <class T> A() -> A<decltype(foo<traits<1>>)>;");
+ verifyFormat("template <class T> A() -> A<sizeof(p->foo<1>)>;");
+ verifyFormat("template <class T> A() -> A<(3 < 2)>;");
+ verifyFormat("template <class T> A() -> A<((3) < (2))>;");
+ verifyFormat("template <class T> x() -> x<1>;");
+ verifyFormat("template <class T> explicit x(T &) -> x<1>;");
+
+ // Ensure not deduction guides.
+ verifyFormat("c()->f<int>();");
+ verifyFormat("x()->foo<1>;");
+ verifyFormat("x = p->foo<3>();");
+ verifyFormat("x()->x<1>();");
+ verifyFormat("x()->x<1>;");
+}
+
+TEST_F(FormatTest, BreaksFunctionDeclarationsWithTrailingTokens) {
+ // Avoid breaking before trailing 'const' or other trailing annotations, if
+ // they are not function-like.
+ FormatStyle Style = getGoogleStyle();
+ Style.ColumnLimit = 47;
+ verifyFormat("void someLongFunction(\n"
+ " int someLoooooooooooooongParameter) const {\n}",
+ getLLVMStyleWithColumns(47));
+ verifyFormat("LoooooongReturnType\n"
+ "someLoooooooongFunction() const {}",
+ getLLVMStyleWithColumns(47));
+ verifyFormat("LoooooongReturnType someLoooooooongFunction()\n"
+ " const {}",
+ Style);
+ verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaa aaaaaaaaaaaaaaaaaaaa) OVERRIDE;");
+ verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaa aaaaaaaaaaaaaaaaaaaa) OVERRIDE FINAL;");
+ verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaa aaaaaaaaaaaaaaaaaaaa) override final;");
+ verifyFormat("virtual void aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaa aaaa,\n"
+ " aaaaaaaaaaa aaaaa) const override;");
+ verifyGoogleFormat(
+ "virtual void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n"
+ " const override;");
+
+ // Even if the first parameter has to be wrapped.
+ verifyFormat("void someLongFunction(\n"
+ " int someLongParameter) const {}",
+ getLLVMStyleWithColumns(46));
+ verifyFormat("void someLongFunction(\n"
+ " int someLongParameter) const {}",
+ Style);
+ verifyFormat("void someLongFunction(\n"
+ " int someLongParameter) override {}",
+ Style);
+ verifyFormat("void someLongFunction(\n"
+ " int someLongParameter) OVERRIDE {}",
+ Style);
+ verifyFormat("void someLongFunction(\n"
+ " int someLongParameter) final {}",
+ Style);
+ verifyFormat("void someLongFunction(\n"
+ " int someLongParameter) FINAL {}",
+ Style);
+ verifyFormat("void someLongFunction(\n"
+ " int parameter) const override {}",
+ Style);
+
+ Style.BreakBeforeBraces = FormatStyle::BS_Allman;
+ verifyFormat("void someLongFunction(\n"
+ " int someLongParameter) const\n"
+ "{\n"
+ "}",
+ Style);
+
+ Style.BreakBeforeBraces = FormatStyle::BS_Whitesmiths;
+ verifyFormat("void someLongFunction(\n"
+ " int someLongParameter) const\n"
+ " {\n"
+ " }",
+ Style);
+
+ // Unless these are unknown annotations.
+ verifyFormat("void SomeFunction(aaaaaaaaaa aaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " LONG_AND_UGLY_ANNOTATION;");
+
+ // Breaking before function-like trailing annotations is fine to keep them
+ // close to their arguments.
+ verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " LOCKS_EXCLUDED(aaaaaaaaaaaaa);");
+ verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const\n"
+ " LOCKS_EXCLUDED(aaaaaaaaaaaaa);");
+ verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const\n"
+ " LOCKS_EXCLUDED(aaaaaaaaaaaaa) {}");
+ verifyGoogleFormat("void aaaaaaaaaaaaaa(aaaaaaaa aaa) override\n"
+ " AAAAAAAAAAAAAAAAAAAAAAAA(aaaaaaaaaaaaaaa);");
+ verifyFormat("SomeFunction([](int i) LOCKS_EXCLUDED(a) {});");
+
+ verifyFormat(
+ "void aaaaaaaaaaaaaaaaaa()\n"
+ " __attribute__((aaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaa));");
+ verifyFormat("bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " __attribute__((unused));");
+ verifyGoogleFormat(
+ "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " GUARDED_BY(aaaaaaaaaaaa);");
+ verifyGoogleFormat(
+ "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " GUARDED_BY(aaaaaaaaaaaa);");
+ verifyGoogleFormat(
+ "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa GUARDED_BY(aaaaaaaaaaaa) =\n"
+ " aaaaaaaa::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyGoogleFormat(
+ "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa GUARDED_BY(aaaaaaaaaaaa) =\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaa;");
+}
+
+TEST_F(FormatTest, FunctionAnnotations) {
+ verifyFormat("DEPRECATED(\"Use NewClass::NewFunction instead.\")\n"
+ "int OldFunction(const string &parameter) {}");
+ verifyFormat("DEPRECATED(\"Use NewClass::NewFunction instead.\")\n"
+ "string OldFunction(const string &parameter) {}");
+ verifyFormat("template <typename T>\n"
+ "DEPRECATED(\"Use NewClass::NewFunction instead.\")\n"
+ "string OldFunction(const string &parameter) {}");
+
+ // Not function annotations.
+ verifyFormat("ASSERT(\"aaaaa\") << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb");
+ verifyFormat("TEST_F(ThisIsATestFixtureeeeeeeeeeeee,\n"
+ " ThisIsATestWithAReallyReallyReallyReallyLongName) {}");
+ verifyFormat("MACRO(abc).function() // wrap\n"
+ " << abc;");
+ verifyFormat("MACRO(abc)->function() // wrap\n"
+ " << abc;");
+ verifyFormat("MACRO(abc)::function() // wrap\n"
+ " << abc;");
+}
+
+TEST_F(FormatTest, BreaksDesireably) {
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n"
+ " aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n"
+ " aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa)) {\n}");
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)) {\n"
+ "}");
+
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}");
+
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));");
+
+ verifyFormat(
+ "aaaaaaaa(aaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)),\n"
+ " aaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)));");
+
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n"
+ " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+
+ verifyFormat(
+ "void f() {\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n"
+ "}");
+ verifyFormat(
+ "aaaaaa(new Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa));");
+ verifyFormat(
+ "aaaaaa(aaa, new Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa));");
+ verifyFormat(
+ "aaaaaa(aaa,\n"
+ " new Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
+ " aaaa);");
+ verifyFormat("aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+
+ // Indent consistently independent of call expression and unary operator.
+ verifyFormat("aaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n"
+ " dddddddddddddddddddddddddddddd));");
+ verifyFormat("aaaaaaaaaaa(!bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n"
+ " dddddddddddddddddddddddddddddd));");
+ verifyFormat("aaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbb.ccccccccccccccccc(\n"
+ " dddddddddddddddddddddddddddddd));");
+
+ // This test case breaks on an incorrect memoization, i.e. an optimization not
+ // taking into account the StopAt value.
+ verifyFormat(
+ "return aaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n"
+ " aaaaaaaaaaa(aaaaaaaaa) || aaaaaaaaaaaaaaaaaaaaaaa ||\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n"
+ " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+
+ verifyFormat("{\n {\n {\n"
+ " Annotation.SpaceRequiredBefore =\n"
+ " Line.Tokens[i - 1].Tok.isNot(tok::l_paren) &&\n"
+ " Line.Tokens[i - 1].Tok.isNot(tok::l_square);\n"
+ " }\n }\n}");
+
+ // Break on an outer level if there was a break on an inner level.
+ EXPECT_EQ("f(g(h(a, // comment\n"
+ " b, c),\n"
+ " d, e),\n"
+ " x, y);",
+ format("f(g(h(a, // comment\n"
+ " b, c), d, e), x, y);"));
+
+ // Prefer breaking similar line breaks.
+ verifyFormat(
+ "const int kTrackingOptions = NSTrackingMouseMoved |\n"
+ " NSTrackingMouseEnteredAndExited |\n"
+ " NSTrackingActiveAlways;");
+}
+
+TEST_F(FormatTest, FormatsDeclarationsOnePerLine) {
+ FormatStyle NoBinPacking = getGoogleStyle();
+ NoBinPacking.BinPackParameters = false;
+ NoBinPacking.BinPackArguments = true;
+ verifyFormat("void f() {\n"
+ " f(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n"
+ "}",
+ NoBinPacking);
+ verifyFormat("void f(int aaaaaaaaaaaaaaaaaaaa,\n"
+ " int aaaaaaaaaaaaaaaaaaaa,\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}",
+ NoBinPacking);
+
+ NoBinPacking.AllowAllParametersOfDeclarationOnNextLine = false;
+ verifyFormat("void aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " vector<int> bbbbbbbbbbbbbbb);",
+ NoBinPacking);
+ // FIXME: This behavior difference is probably not wanted. However, currently
+ // we cannot distinguish BreakBeforeParameter being set because of the wrapped
+ // template arguments from BreakBeforeParameter being set because of the
+ // one-per-line formatting.
+ verifyFormat(
+ "void fffffffffff(aaaaaaaaaaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaa> aaaaaaaaaa);",
+ NoBinPacking);
+ verifyFormat(
+ "void fffffffffff(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaa>\n"
+ " aaaaaaaaaa);");
+}
+
+TEST_F(FormatTest, FormatsOneParameterPerLineIfNecessary) {
+ FormatStyle NoBinPacking = getGoogleStyle();
+ NoBinPacking.BinPackParameters = false;
+ NoBinPacking.BinPackArguments = false;
+ verifyFormat("f(aaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaa);",
+ NoBinPacking);
+ verifyFormat("aaaaaaa(aaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa));",
+ NoBinPacking);
+ verifyFormat(
+ "aaaaaaaa(aaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)),\n"
+ " aaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)));",
+ NoBinPacking);
+ verifyFormat("aaaaaaaaaaaaaaa(aaaaaaaaa, aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa)\n"
+ " .aaaaaaaaaaaaaaaaaa();",
+ NoBinPacking);
+ verifyFormat("void f() {\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaa, aaaaaaaaaa, aaaaaaaaaa, aaaaaaaaaaa);\n"
+ "}",
+ NoBinPacking);
+
+ verifyFormat(
+ "aaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaa);",
+ NoBinPacking);
+ verifyFormat(
+ "somefunction(someotherFunction(ddddddddddddddddddddddddddddddddddd,\n"
+ " ddddddddddddddddddddddddddddd),\n"
+ " test);",
+ NoBinPacking);
+
+ verifyFormat("std::vector<aaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaa>\n"
+ " aaaaaaaaaaaaaaaaaa;",
+ NoBinPacking);
+ verifyFormat("a(\"a\"\n"
+ " \"a\",\n"
+ " a);");
+
+ NoBinPacking.AllowAllParametersOfDeclarationOnNextLine = false;
+ verifyFormat("void aaaaaaaaaa(aaaaaaaaa,\n"
+ " aaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ NoBinPacking);
+ verifyFormat(
+ "void f() {\n"
+ " aaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaa, aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa)\n"
+ " .aaaaaaa();\n"
+ "}",
+ NoBinPacking);
+ verifyFormat(
+ "template <class SomeType, class SomeOtherType>\n"
+ "SomeType SomeFunction(SomeType Type, SomeOtherType OtherType) {}",
+ NoBinPacking);
+}
+
+TEST_F(FormatTest, AdaptiveOnePerLineFormatting) {
+ FormatStyle Style = getLLVMStyleWithColumns(15);
+ Style.ExperimentalAutoDetectBinPacking = true;
+ EXPECT_EQ("aaa(aaaa,\n"
+ " aaaa,\n"
+ " aaaa);\n"
+ "aaa(aaaa,\n"
+ " aaaa,\n"
+ " aaaa);",
+ format("aaa(aaaa,\n" // one-per-line
+ " aaaa,\n"
+ " aaaa );\n"
+ "aaa(aaaa, aaaa, aaaa);", // inconclusive
+ Style));
+ EXPECT_EQ("aaa(aaaa, aaaa,\n"
+ " aaaa);\n"
+ "aaa(aaaa, aaaa,\n"
+ " aaaa);",
+ format("aaa(aaaa, aaaa,\n" // bin-packed
+ " aaaa );\n"
+ "aaa(aaaa, aaaa, aaaa);", // inconclusive
+ Style));
+}
+
+TEST_F(FormatTest, FormatsBuilderPattern) {
+ verifyFormat("return llvm::StringSwitch<Reference::Kind>(name)\n"
+ " .StartsWith(\".eh_frame_hdr\", ORDER_EH_FRAMEHDR)\n"
+ " .StartsWith(\".eh_frame\", ORDER_EH_FRAME)\n"
+ " .StartsWith(\".init\", ORDER_INIT)\n"
+ " .StartsWith(\".fini\", ORDER_FINI)\n"
+ " .StartsWith(\".hash\", ORDER_HASH)\n"
+ " .Default(ORDER_TEXT);\n");
+
+ verifyFormat("return aaaaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa() <\n"
+ " aaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa();");
+ verifyFormat("aaaaaaa->aaaaaaa\n"
+ " ->aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " ->aaaaaaaa(aaaaaaaaaaaaaaa);");
+ verifyFormat(
+ "aaaaaaa->aaaaaaa\n"
+ " ->aaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " ->aaaaaaaa(aaaaaaaaaaaaaaa);");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaa()->aaaaaa(bbbbb)->aaaaaaaaaaaaaaaaaaa( // break\n"
+ " aaaaaaaaaaaaaa);");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaa *aaaaaaaaa =\n"
+ " aaaaaa->aaaaaaaaaaaa()\n"
+ " ->aaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " ->aaaaaaaaaaaaaaaaa();");
+ verifyGoogleFormat(
+ "void f() {\n"
+ " someo->Add((new util::filetools::Handler(dir))\n"
+ " ->OnEvent1(NewPermanentCallback(\n"
+ " this, &HandlerHolderClass::EventHandlerCBA))\n"
+ " ->OnEvent2(NewPermanentCallback(\n"
+ " this, &HandlerHolderClass::EventHandlerCBB))\n"
+ " ->OnEvent3(NewPermanentCallback(\n"
+ " this, &HandlerHolderClass::EventHandlerCBC))\n"
+ " ->OnEvent5(NewPermanentCallback(\n"
+ " this, &HandlerHolderClass::EventHandlerCBD))\n"
+ " ->OnEvent6(NewPermanentCallback(\n"
+ " this, &HandlerHolderClass::EventHandlerCBE)));\n"
+ "}");
+
+ verifyFormat(
+ "aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa();");
+ verifyFormat("aaaaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaa();");
+ verifyFormat("aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaa();");
+ verifyFormat("aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaa();");
+ verifyFormat("aaaaaaaaaaaaa->aaaaaaaaaaaaaaaaaaaaaaaa()\n"
+ " ->aaaaaaaaaaaaaae(0)\n"
+ " ->aaaaaaaaaaaaaaa();");
+
+ // Don't linewrap after very short segments.
+ verifyFormat("a().aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();");
+ verifyFormat("aa().aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();");
+ verifyFormat("aaa()\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();");
+
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaa()\n"
+ " .has<bbbbbbbbbbbbbbbbbbbbb>();");
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaa()\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>();");
+
+ // Prefer not to break after empty parentheses.
+ verifyFormat("FirstToken->WhitespaceRange.getBegin().getLocWithOffset(\n"
+ " First->LastNewlineOffset);");
+
+ // Prefer not to create "hanging" indents.
+ verifyFormat(
+ "return !soooooooooooooome_map\n"
+ " .insert(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " .second;");
+ verifyFormat(
+ "return aaaaaaaaaaaaaaaa\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa)\n"
+ " .aaaa(aaaaaaaaaaaaaa);");
+ // No hanging indent here.
+ verifyFormat("aaaaaaaaaaaaaaaa.aaaaaaaaaaaaaa.aaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat("aaaaaaaaaaaaaaaa.aaaaaaaaaaaaaa().aaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat("aaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa)\n"
+ " .aaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ getLLVMStyleWithColumns(60));
+ verifyFormat("aaaaaaaaaaaaaaaaaa\n"
+ " .aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa)\n"
+ " .aaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ getLLVMStyleWithColumns(59));
+ verifyFormat("aaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " .aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+
+ // Dont break if only closing statements before member call
+ verifyFormat("test() {\n"
+ " ([]() -> {\n"
+ " int b = 32;\n"
+ " return 3;\n"
+ " }).foo();\n"
+ "}");
+ verifyFormat("test() {\n"
+ " (\n"
+ " []() -> {\n"
+ " int b = 32;\n"
+ " return 3;\n"
+ " },\n"
+ " foo, bar)\n"
+ " .foo();\n"
+ "}");
+ verifyFormat("test() {\n"
+ " ([]() -> {\n"
+ " int b = 32;\n"
+ " return 3;\n"
+ " })\n"
+ " .foo()\n"
+ " .bar();\n"
+ "}");
+ verifyFormat("test() {\n"
+ " ([]() -> {\n"
+ " int b = 32;\n"
+ " return 3;\n"
+ " })\n"
+ " .foo(\"aaaaaaaaaaaaaaaaa\"\n"
+ " \"bbbb\");\n"
+ "}",
+ getLLVMStyleWithColumns(30));
+}
+
+TEST_F(FormatTest, BreaksAccordingToOperatorPrecedence) {
+ verifyFormat(
+ "if (aaaaaaaaaaaaaaaaaaaaaaaaa ||\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbb && ccccccccccccccccccccccccc) {\n}");
+ verifyFormat(
+ "if (aaaaaaaaaaaaaaaaaaaaaaaaa or\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbb and cccccccccccccccccccccccc) {\n}");
+
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa && bbbbbbbbbbbbbbbbbbbbbbbbb ||\n"
+ " ccccccccccccccccccccccccc) {\n}");
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa and bbbbbbbbbbbbbbbbbbbbbbbb or\n"
+ " ccccccccccccccccccccccccc) {\n}");
+
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb ||\n"
+ " ccccccccccccccccccccccccc) {\n}");
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa or bbbbbbbbbbbbbbbbbbbbbbbbb or\n"
+ " ccccccccccccccccccccccccc) {\n}");
+
+ verifyFormat(
+ "if ((aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb) &&\n"
+ " ccccccccccccccccccccccccc) {\n}");
+ verifyFormat(
+ "if ((aaaaaaaaaaaaaaaaaaaaaaaaa or bbbbbbbbbbbbbbbbbbbbbbbbb) and\n"
+ " ccccccccccccccccccccccccc) {\n}");
+
+ verifyFormat("return aaaa & AAAAAAAAAAAAAAAAAAAAAAAAAAAAA ||\n"
+ " bbbb & BBBBBBBBBBBBBBBBBBBBBBBBBBBBB ||\n"
+ " cccc & CCCCCCCCCCCCCCCCCCCCCCCCCC ||\n"
+ " dddd & DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD;");
+ verifyFormat("return aaaa & AAAAAAAAAAAAAAAAAAAAAAAAAAAAA or\n"
+ " bbbb & BBBBBBBBBBBBBBBBBBBBBBBBBBBBB or\n"
+ " cccc & CCCCCCCCCCCCCCCCCCCCCCCCCC or\n"
+ " dddd & DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD;");
+
+ verifyFormat("if ((aaaaaaaaaa != aaaaaaaaaaaaaaa ||\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaa() >= aaaaaaaaaaaaaaaaaaaa) &&\n"
+ " aaaaaaaaaaaaaaa != aa) {\n}");
+ verifyFormat("if ((aaaaaaaaaa != aaaaaaaaaaaaaaa or\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaa() >= aaaaaaaaaaaaaaaaaaaa) and\n"
+ " aaaaaaaaaaaaaaa != aa) {\n}");
+}
+
+TEST_F(FormatTest, BreaksAfterAssignments) {
+ verifyFormat(
+ "unsigned Cost =\n"
+ " TTI.getMemoryOpCost(I->getOpcode(), VectorTy, SI->getAlignment(),\n"
+ " SI->getPointerAddressSpaceee());\n");
+ verifyFormat(
+ "CharSourceRange LineRange = CharSourceRange::getTokenRange(\n"
+ " Line.Tokens.front().Tok.getLo(), Line.Tokens.back().Tok.getLoc());");
+
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaa aaaa = aaaaaaaaaaaaaa(0).aaaa().aaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat("unsigned OriginalStartColumn =\n"
+ " SourceMgr.getSpellingColumnNumber(\n"
+ " Current.FormatTok.getStartOfNonWhitespace()) -\n"
+ " 1;");
+}
+
+TEST_F(FormatTest, ConfigurableBreakAssignmentPenalty) {
+ FormatStyle Style = getLLVMStyle();
+ verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaa =\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbbb + cccccccccccccccccccccccccc;",
+ Style);
+
+ Style.PenaltyBreakAssignment = 20;
+ verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaa = bbbbbbbbbbbbbbbbbbbbbbbbbb +\n"
+ " cccccccccccccccccccccccccc;",
+ Style);
+}
+
+TEST_F(FormatTest, AlignsAfterAssignments) {
+ verifyFormat(
+ "int Result = aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyFormat(
+ "Result += aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyFormat(
+ "Result >>= aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyFormat(
+ "int Result = (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat(
+ "double LooooooooooooooooooooooooongResult = aaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaa;");
+}
+
+TEST_F(FormatTest, AlignsAfterReturn) {
+ verifyFormat(
+ "return aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyFormat(
+ "return (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat(
+ "return aaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >=\n"
+ " aaaaaaaaaaaaaaaaaaaaaa();");
+ verifyFormat(
+ "return (aaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >=\n"
+ " aaaaaaaaaaaaaaaaaaaaaa());");
+ verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) &&\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyFormat("return\n"
+ " // true if code is one of a or b.\n"
+ " code == a || code == b;");
+}
+
+TEST_F(FormatTest, AlignsAfterOpenBracket) {
+ verifyFormat(
+ "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaa aaaaaaaa,\n"
+ " aaaaaaaaa aaaaaaa) {}");
+ verifyFormat(
+ "SomeLongVariableName->someVeryLongFunctionName(aaaaaaaaaaa aaaaaaaaa,\n"
+ " aaaaaaaaaaa aaaaaaaaa);");
+ verifyFormat(
+ "SomeLongVariableName->someFunction(foooooooo(aaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaa));");
+ FormatStyle Style = getLLVMStyle();
+ Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign;
+ verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaa aaaaaaaa, aaaaaaaaa aaaaaaa) {}",
+ Style);
+ verifyFormat("SomeLongVariableName->someVeryLongFunctionName(\n"
+ " aaaaaaaaaaa aaaaaaaaa, aaaaaaaaaaa aaaaaaaaa);",
+ Style);
+ verifyFormat("SomeLongVariableName->someFunction(\n"
+ " foooooooo(aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa));",
+ Style);
+ verifyFormat(
+ "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaa aaaaaaaa,\n"
+ " aaaaaaaaa aaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}",
+ Style);
+ verifyFormat(
+ "SomeLongVariableName->someVeryLongFunctionName(aaaaaaaaaaa aaaaaaaaa,\n"
+ " aaaaaaaaaaa aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ Style);
+ verifyFormat(
+ "SomeLongVariableName->someFunction(foooooooo(aaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));",
+ Style);
+
+ verifyFormat("bbbbbbbbbbbb(aaaaaaaaaaaaaaaaaaaaaaaa, //\n"
+ " ccccccc(aaaaaaaaaaaaaaaaa, //\n"
+ " b));",
+ Style);
+
+ Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak;
+ Style.BinPackArguments = false;
+ Style.BinPackParameters = false;
+ verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaa aaaaaaaa,\n"
+ " aaaaaaaaa aaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}",
+ Style);
+ verifyFormat("SomeLongVariableName->someVeryLongFunctionName(\n"
+ " aaaaaaaaaaa aaaaaaaaa,\n"
+ " aaaaaaaaaaa aaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ Style);
+ verifyFormat("SomeLongVariableName->someFunction(foooooooo(\n"
+ " aaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));",
+ Style);
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa)));",
+ Style);
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaa.aaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa)));",
+ Style);
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa)),\n"
+ " aaaaaaaaaaaaaaaa);",
+ Style);
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa)) &&\n"
+ " aaaaaaaaaaaaaaaa);",
+ Style);
+}
+
+TEST_F(FormatTest, ParenthesesAndOperandAlignment) {
+ FormatStyle Style = getLLVMStyleWithColumns(40);
+ verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n"
+ " bbbbbbbbbbbbbbbbbbbbbb);",
+ Style);
+ Style.AlignAfterOpenBracket = FormatStyle::BAS_Align;
+ Style.AlignOperands = false;
+ verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n"
+ " bbbbbbbbbbbbbbbbbbbbbb);",
+ Style);
+ Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign;
+ Style.AlignOperands = true;
+ verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n"
+ " bbbbbbbbbbbbbbbbbbbbbb);",
+ Style);
+ Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign;
+ Style.AlignOperands = false;
+ verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n"
+ " bbbbbbbbbbbbbbbbbbbbbb);",
+ Style);
+}
+
+TEST_F(FormatTest, BreaksConditionalExpressions) {
+ verifyFormat(
+ "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat(
+ "aaaa(aaaaaaaaaa, aaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat(
+ "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat("aaaa(aaaaaaaaa, aaaaaaaaa,\n"
+ " aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa ? aaaa(aaaaaa)\n"
+ " : aaaaaaaaaaaaa);");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaa);");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaa ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaa);");
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " ? aaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaa =\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " : aaaaaaaaaaaaaaaa;");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " ? aaaaaaaaaaaaaaa\n"
+ " : aaaaaaaaaaaaaaa;");
+ verifyFormat("f(aaaaaaaaaaaaaaaa == // force break\n"
+ " aaaaaaaaa\n"
+ " ? b\n"
+ " : c);");
+ verifyFormat("return aaaa == bbbb\n"
+ " // comment\n"
+ " ? aaaa\n"
+ " : bbbb;");
+ verifyFormat("unsigned Indent =\n"
+ " format(TheLine.First,\n"
+ " IndentForLevel[TheLine.Level] >= 0\n"
+ " ? IndentForLevel[TheLine.Level]\n"
+ " : TheLine * 2,\n"
+ " TheLine.InPPDirective, PreviousEndOfLineColumn);",
+ getLLVMStyleWithColumns(60));
+ verifyFormat("bool aaaaaa = aaaaaaaaaaaaa //\n"
+ " ? aaaaaaaaaaaaaaa\n"
+ " : bbbbbbbbbbbbbbb //\n"
+ " ? ccccccccccccccc\n"
+ " : ddddddddddddddd;");
+ verifyFormat("bool aaaaaa = aaaaaaaaaaaaa //\n"
+ " ? aaaaaaaaaaaaaaa\n"
+ " : (bbbbbbbbbbbbbbb //\n"
+ " ? ccccccccccccccc\n"
+ " : ddddddddddddddd);");
+ verifyFormat(
+ "int aaaaaaaaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " ? aaaaaaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaa +\n"
+ " aaaaaaaaaaaaaaaaaaaaa\n"
+ " : aaaaaaaaaa;");
+ verifyFormat(
+ "aaaaaa = aaaaaaaaaaaa ? aaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " : aaaaaaaaaaaaaaaaaaaaaa\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
+
+ FormatStyle NoBinPacking = getLLVMStyle();
+ NoBinPacking.BinPackArguments = false;
+ verifyFormat(
+ "void f() {\n"
+ " g(aaa,\n"
+ " aaaaaaaaaa == aaaaaaaaaa ? aaaa : aaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " ? aaaaaaaaaaaaaaa\n"
+ " : aaaaaaaaaaaaaaa);\n"
+ "}",
+ NoBinPacking);
+ verifyFormat(
+ "void f() {\n"
+ " g(aaa,\n"
+ " aaaaaaaaaa == aaaaaaaaaa ? aaaa : aaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " ?: aaaaaaaaaaaaaaa);\n"
+ "}",
+ NoBinPacking);
+
+ verifyFormat("SomeFunction(aaaaaaaaaaaaaaaaa,\n"
+ " // comment.\n"
+ " ccccccccccccccccccccccccccccccccccccccc\n"
+ " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " : bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);");
+
+ // Assignments in conditional expressions. Apparently not uncommon :-(.
+ verifyFormat("return a != b\n"
+ " // comment\n"
+ " ? a = b\n"
+ " : a = b;");
+ verifyFormat("return a != b\n"
+ " // comment\n"
+ " ? a = a != b\n"
+ " // comment\n"
+ " ? a = b\n"
+ " : a\n"
+ " : a;\n");
+ verifyFormat("return a != b\n"
+ " // comment\n"
+ " ? a\n"
+ " : a = a != b\n"
+ " // comment\n"
+ " ? a = b\n"
+ " : a;");
+}
+
+TEST_F(FormatTest, BreaksConditionalExpressionsAfterOperator) {
+ FormatStyle Style = getLLVMStyle();
+ Style.BreakBeforeTernaryOperators = false;
+ Style.ColumnLimit = 70;
+ verifyFormat(
+ "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaa ?\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ Style);
+ verifyFormat(
+ "aaaa(aaaaaaaaaa, aaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ Style);
+ verifyFormat(
+ "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ Style);
+ verifyFormat("aaaa(aaaaaaaa, aaaaaaaaaa,\n"
+ " aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ Style);
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa ? aaaa(aaaaaa) :\n"
+ " aaaaaaaaaaaaa);",
+ Style);
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaa);",
+ Style);
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaa ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaa);",
+ Style);
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ Style);
+ verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ Style);
+ verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?:\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ Style);
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa;",
+ Style);
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaa =\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;",
+ Style);
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n"
+ " aaaaaaaaaaaaaaa :\n"
+ " aaaaaaaaaaaaaaa;",
+ Style);
+ verifyFormat("f(aaaaaaaaaaaaaaaa == // force break\n"
+ " aaaaaaaaa ?\n"
+ " b :\n"
+ " c);",
+ Style);
+ verifyFormat("unsigned Indent =\n"
+ " format(TheLine.First,\n"
+ " IndentForLevel[TheLine.Level] >= 0 ?\n"
+ " IndentForLevel[TheLine.Level] :\n"
+ " TheLine * 2,\n"
+ " TheLine.InPPDirective, PreviousEndOfLineColumn);",
+ Style);
+ verifyFormat("bool aaaaaa = aaaaaaaaaaaaa ? //\n"
+ " aaaaaaaaaaaaaaa :\n"
+ " bbbbbbbbbbbbbbb ? //\n"
+ " ccccccccccccccc :\n"
+ " ddddddddddddddd;",
+ Style);
+ verifyFormat("bool aaaaaa = aaaaaaaaaaaaa ? //\n"
+ " aaaaaaaaaaaaaaa :\n"
+ " (bbbbbbbbbbbbbbb ? //\n"
+ " ccccccccccccccc :\n"
+ " ddddddddddddddd);",
+ Style);
+ verifyFormat("int i = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n"
+ " /*bbbbbbbbbbbbbbb=*/bbbbbbbbbbbbbbbbbbbbbbbbb :\n"
+ " ccccccccccccccccccccccccccc;",
+ Style);
+ verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n"
+ " aaaaa :\n"
+ " bbbbbbbbbbbbbbb + cccccccccccccccc;",
+ Style);
+}
+
+TEST_F(FormatTest, DeclarationsOfMultipleVariables) {
+ verifyFormat("bool aaaaaaaaaaaaaaaaa = aaaaaa->aaaaaaaaaaaaaaaaa(),\n"
+ " aaaaaaaaaaa = aaaaaa->aaaaaaaaaaa();");
+ verifyFormat("bool a = true, b = false;");
+
+ verifyFormat("bool aaaaaaaaaaaaaaaaaaaaaaaaa =\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa),\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbb =\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(bbbbbbbbbbbbbbbb);");
+ verifyFormat(
+ "bool aaaaaaaaaaaaaaaaaaaaa =\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbbbbb && cccccccccccccccccccccccccccc,\n"
+ " d = e && f;");
+ verifyFormat("aaaaaaaaa a = aaaaaaaaaaaaaaaaaaaa, b = bbbbbbbbbbbbbbbbbbbb,\n"
+ " c = cccccccccccccccccccc, d = dddddddddddddddddddd;");
+ verifyFormat("aaaaaaaaa *a = aaaaaaaaaaaaaaaaaaa, *b = bbbbbbbbbbbbbbbbbbb,\n"
+ " *c = ccccccccccccccccccc, *d = ddddddddddddddddddd;");
+ verifyFormat("aaaaaaaaa ***a = aaaaaaaaaaaaaaaaaaa, ***b = bbbbbbbbbbbbbbb,\n"
+ " ***c = ccccccccccccccccccc, ***d = ddddddddddddddd;");
+
+ FormatStyle Style = getGoogleStyle();
+ Style.PointerAlignment = FormatStyle::PAS_Left;
+ Style.DerivePointerAlignment = false;
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " *aaaaaaaaaaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaa,\n"
+ " *b = bbbbbbbbbbbbbbbbbbb;",
+ Style);
+ verifyFormat("aaaaaaaaa *a = aaaaaaaaaaaaaaaaaaa, *b = bbbbbbbbbbbbbbbbbbb,\n"
+ " *b = bbbbbbbbbbbbbbbbbbb, *d = ddddddddddddddddddd;",
+ Style);
+ verifyFormat("vector<int*> a, b;", Style);
+ verifyFormat("for (int *p, *q; p != q; p = p->next) {\n}", Style);
+}
+
+TEST_F(FormatTest, ConditionalExpressionsInBrackets) {
+ verifyFormat("arr[foo ? bar : baz];");
+ verifyFormat("f()[foo ? bar : baz];");
+ verifyFormat("(a + b)[foo ? bar : baz];");
+ verifyFormat("arr[foo ? (4 > 5 ? 4 : 5) : 5 < 5 ? 5 : 7];");
+}
+
+TEST_F(FormatTest, AlignsStringLiterals) {
+ verifyFormat("loooooooooooooooooooooooooongFunction(\"short literal \"\n"
+ " \"short literal\");");
+ verifyFormat(
+ "looooooooooooooooooooooooongFunction(\n"
+ " \"short literal\"\n"
+ " \"looooooooooooooooooooooooooooooooooooooooooooooooong literal\");");
+ verifyFormat("someFunction(\"Always break between multi-line\"\n"
+ " \" string literals\",\n"
+ " and, other, parameters);");
+ EXPECT_EQ("fun + \"1243\" /* comment */\n"
+ " \"5678\";",
+ format("fun + \"1243\" /* comment */\n"
+ " \"5678\";",
+ getLLVMStyleWithColumns(28)));
+ EXPECT_EQ(
+ "aaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n"
+ " \"aaaaaaaaaaaaaaaaaaaaa\"\n"
+ " \"aaaaaaaaaaaaaaaa\";",
+ format("aaaaaa ="
+ "\"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaa "
+ "aaaaaaaaaaaaaaaaaaaaa\" "
+ "\"aaaaaaaaaaaaaaaa\";"));
+ verifyFormat("a = a + \"a\"\n"
+ " \"a\"\n"
+ " \"a\";");
+ verifyFormat("f(\"a\", \"b\"\n"
+ " \"c\");");
+
+ verifyFormat(
+ "#define LL_FORMAT \"ll\"\n"
+ "printf(\"aaaaa: %d, bbbbbb: %\" LL_FORMAT \"d, cccccccc: %\" LL_FORMAT\n"
+ " \"d, ddddddddd: %\" LL_FORMAT \"d\");");
+
+ verifyFormat("#define A(X) \\\n"
+ " \"aaaaa\" #X \"bbbbbb\" \\\n"
+ " \"ccccc\"",
+ getLLVMStyleWithColumns(23));
+ verifyFormat("#define A \"def\"\n"
+ "f(\"abc\" A \"ghi\"\n"
+ " \"jkl\");");
+
+ verifyFormat("f(L\"a\"\n"
+ " L\"b\");");
+ verifyFormat("#define A(X) \\\n"
+ " L\"aaaaa\" #X L\"bbbbbb\" \\\n"
+ " L\"ccccc\"",
+ getLLVMStyleWithColumns(25));
+
+ verifyFormat("f(@\"a\"\n"
+ " @\"b\");");
+ verifyFormat("NSString s = @\"a\"\n"
+ " @\"b\"\n"
+ " @\"c\";");
+ verifyFormat("NSString s = @\"a\"\n"
+ " \"b\"\n"
+ " \"c\";");
+}
+
+TEST_F(FormatTest, ReturnTypeBreakingStyle) {
+ FormatStyle Style = getLLVMStyle();
+ // No declarations or definitions should be moved to own line.
+ Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_None;
+ verifyFormat("class A {\n"
+ " int f() { return 1; }\n"
+ " int g();\n"
+ "};\n"
+ "int f() { return 1; }\n"
+ "int g();\n",
+ Style);
+
+ // All declarations and definitions should have the return type moved to its
+ // own
+ // line.
+ Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_All;
+ verifyFormat("class E {\n"
+ " int\n"
+ " f() {\n"
+ " return 1;\n"
+ " }\n"
+ " int\n"
+ " g();\n"
+ "};\n"
+ "int\n"
+ "f() {\n"
+ " return 1;\n"
+ "}\n"
+ "int\n"
+ "g();\n",
+ Style);
+
+ // Top-level definitions, and no kinds of declarations should have the
+ // return type moved to its own line.
+ Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_TopLevelDefinitions;
+ verifyFormat("class B {\n"
+ " int f() { return 1; }\n"
+ " int g();\n"
+ "};\n"
+ "int\n"
+ "f() {\n"
+ " return 1;\n"
+ "}\n"
+ "int g();\n",
+ Style);
+
+ // Top-level definitions and declarations should have the return type moved
+ // to its own line.
+ Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_TopLevel;
+ verifyFormat("class C {\n"
+ " int f() { return 1; }\n"
+ " int g();\n"
+ "};\n"
+ "int\n"
+ "f() {\n"
+ " return 1;\n"
+ "}\n"
+ "int\n"
+ "g();\n",
+ Style);
+
+ // All definitions should have the return type moved to its own line, but no
+ // kinds of declarations.
+ Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_AllDefinitions;
+ verifyFormat("class D {\n"
+ " int\n"
+ " f() {\n"
+ " return 1;\n"
+ " }\n"
+ " int g();\n"
+ "};\n"
+ "int\n"
+ "f() {\n"
+ " return 1;\n"
+ "}\n"
+ "int g();\n",
+ Style);
+ verifyFormat("const char *\n"
+ "f(void) {\n" // Break here.
+ " return \"\";\n"
+ "}\n"
+ "const char *bar(void);\n", // No break here.
+ Style);
+ verifyFormat("template <class T>\n"
+ "T *\n"
+ "f(T &c) {\n" // Break here.
+ " return NULL;\n"
+ "}\n"
+ "template <class T> T *f(T &c);\n", // No break here.
+ Style);
+ verifyFormat("class C {\n"
+ " int\n"
+ " operator+() {\n"
+ " return 1;\n"
+ " }\n"
+ " int\n"
+ " operator()() {\n"
+ " return 1;\n"
+ " }\n"
+ "};\n",
+ Style);
+ verifyFormat("void\n"
+ "A::operator()() {}\n"
+ "void\n"
+ "A::operator>>() {}\n"
+ "void\n"
+ "A::operator+() {}\n"
+ "void\n"
+ "A::operator*() {}\n"
+ "void\n"
+ "A::operator->() {}\n"
+ "void\n"
+ "A::operator void *() {}\n"
+ "void\n"
+ "A::operator void &() {}\n"
+ "void\n"
+ "A::operator void &&() {}\n"
+ "void\n"
+ "A::operator char *() {}\n"
+ "void\n"
+ "A::operator[]() {}\n"
+ "void\n"
+ "A::operator!() {}\n",
+ Style);
+ verifyFormat("constexpr auto\n"
+ "operator()() const -> reference {}\n"
+ "constexpr auto\n"
+ "operator>>() const -> reference {}\n"
+ "constexpr auto\n"
+ "operator+() const -> reference {}\n"
+ "constexpr auto\n"
+ "operator*() const -> reference {}\n"
+ "constexpr auto\n"
+ "operator->() const -> reference {}\n"
+ "constexpr auto\n"
+ "operator++() const -> reference {}\n"
+ "constexpr auto\n"
+ "operator void *() const -> reference {}\n"
+ "constexpr auto\n"
+ "operator void &() const -> reference {}\n"
+ "constexpr auto\n"
+ "operator void &&() const -> reference {}\n"
+ "constexpr auto\n"
+ "operator char *() const -> reference {}\n"
+ "constexpr auto\n"
+ "operator!() const -> reference {}\n"
+ "constexpr auto\n"
+ "operator[]() const -> reference {}\n",
+ Style);
+ verifyFormat("void *operator new(std::size_t s);", // No break here.
+ Style);
+ verifyFormat("void *\n"
+ "operator new(std::size_t s) {}",
+ Style);
+ verifyFormat("void *\n"
+ "operator delete[](void *ptr) {}",
+ Style);
+ Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup;
+ verifyFormat("const char *\n"
+ "f(void)\n" // Break here.
+ "{\n"
+ " return \"\";\n"
+ "}\n"
+ "const char *bar(void);\n", // No break here.
+ Style);
+ verifyFormat("template <class T>\n"
+ "T *\n" // Problem here: no line break
+ "f(T &c)\n" // Break here.
+ "{\n"
+ " return NULL;\n"
+ "}\n"
+ "template <class T> T *f(T &c);\n", // No break here.
+ Style);
+ verifyFormat("int\n"
+ "foo(A<bool> a)\n"
+ "{\n"
+ " return a;\n"
+ "}\n",
+ Style);
+ verifyFormat("int\n"
+ "foo(A<8> a)\n"
+ "{\n"
+ " return a;\n"
+ "}\n",
+ Style);
+ verifyFormat("int\n"
+ "foo(A<B<bool>, 8> a)\n"
+ "{\n"
+ " return a;\n"
+ "}\n",
+ Style);
+ verifyFormat("int\n"
+ "foo(A<B<8>, bool> a)\n"
+ "{\n"
+ " return a;\n"
+ "}\n",
+ Style);
+ verifyFormat("int\n"
+ "foo(A<B<bool>, bool> a)\n"
+ "{\n"
+ " return a;\n"
+ "}\n",
+ Style);
+ verifyFormat("int\n"
+ "foo(A<B<8>, 8> a)\n"
+ "{\n"
+ " return a;\n"
+ "}\n",
+ Style);
+
+ Style = getGNUStyle();
+
+ // Test for comments at the end of function declarations.
+ verifyFormat("void\n"
+ "foo (int a, /*abc*/ int b) // def\n"
+ "{\n"
+ "}\n",
+ Style);
+
+ verifyFormat("void\n"
+ "foo (int a, /* abc */ int b) /* def */\n"
+ "{\n"
+ "}\n",
+ Style);
+
+ // Definitions that should not break after return type
+ verifyFormat("void foo (int a, int b); // def\n", Style);
+ verifyFormat("void foo (int a, int b); /* def */\n", Style);
+ verifyFormat("void foo (int a, int b);\n", Style);
+}
+
+TEST_F(FormatTest, AlwaysBreakBeforeMultilineStrings) {
+ FormatStyle NoBreak = getLLVMStyle();
+ NoBreak.AlwaysBreakBeforeMultilineStrings = false;
+ FormatStyle Break = getLLVMStyle();
+ Break.AlwaysBreakBeforeMultilineStrings = true;
+ verifyFormat("aaaa = \"bbbb\"\n"
+ " \"cccc\";",
+ NoBreak);
+ verifyFormat("aaaa =\n"
+ " \"bbbb\"\n"
+ " \"cccc\";",
+ Break);
+ verifyFormat("aaaa(\"bbbb\"\n"
+ " \"cccc\");",
+ NoBreak);
+ verifyFormat("aaaa(\n"
+ " \"bbbb\"\n"
+ " \"cccc\");",
+ Break);
+ verifyFormat("aaaa(qqq, \"bbbb\"\n"
+ " \"cccc\");",
+ NoBreak);
+ verifyFormat("aaaa(qqq,\n"
+ " \"bbbb\"\n"
+ " \"cccc\");",
+ Break);
+ verifyFormat("aaaa(qqq,\n"
+ " L\"bbbb\"\n"
+ " L\"cccc\");",
+ Break);
+ verifyFormat("aaaaa(aaaaaa, aaaaaaa(\"aaaa\"\n"
+ " \"bbbb\"));",
+ Break);
+ verifyFormat("string s = someFunction(\n"
+ " \"abc\"\n"
+ " \"abc\");",
+ Break);
+
+ // As we break before unary operators, breaking right after them is bad.
+ verifyFormat("string foo = abc ? \"x\"\n"
+ " \"blah blah blah blah blah blah\"\n"
+ " : \"y\";",
+ Break);
+
+ // Don't break if there is no column gain.
+ verifyFormat("f(\"aaaa\"\n"
+ " \"bbbb\");",
+ Break);
+
+ // Treat literals with escaped newlines like multi-line string literals.
+ EXPECT_EQ("x = \"a\\\n"
+ "b\\\n"
+ "c\";",
+ format("x = \"a\\\n"
+ "b\\\n"
+ "c\";",
+ NoBreak));
+ EXPECT_EQ("xxxx =\n"
+ " \"a\\\n"
+ "b\\\n"
+ "c\";",
+ format("xxxx = \"a\\\n"
+ "b\\\n"
+ "c\";",
+ Break));
+
+ EXPECT_EQ("NSString *const kString =\n"
+ " @\"aaaa\"\n"
+ " @\"bbbb\";",
+ format("NSString *const kString = @\"aaaa\"\n"
+ "@\"bbbb\";",
+ Break));
+
+ Break.ColumnLimit = 0;
+ verifyFormat("const char *hello = \"hello llvm\";", Break);
+}
+
+TEST_F(FormatTest, AlignsPipes) {
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa\n"
+ " << aaaaaaaaaaaaaaaaaaaa;");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n"
+ " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyFormat(
+ "llvm::outs() << \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"\n"
+ " \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\"\n"
+ " << \"ccccccccccccccccccccccccccccccccccccccccccccccccc\";");
+ verifyFormat(
+ "aaaaaaaa << (aaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;");
+ verifyFormat("llvm::errs() << \"aaaaaaaaaaaaaaaaaaaaaaa: \"\n"
+ " << aaaaaaaaaaaaaaaaa(aaaaaaaa, aaaaaaaaaaa);");
+ verifyFormat(
+ "llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat(
+ "auto Diag = diag() << aaaaaaaaaaaaaaaa(aaaaaaaaaaaa, aaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaa);");
+
+ verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \"\n"
+ " << aaaaaaaa.aaaaaaaaaaaa(aaa)->aaaaaaaaaaaaaa();");
+ verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaa)\n"
+ " << aaaaaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyFormat("LOG_IF(aaa == //\n"
+ " bbb)\n"
+ " << a << b;");
+
+ // But sometimes, breaking before the first "<<" is desirable.
+ verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)\n"
+ " << aaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaa);");
+ verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbb)\n"
+ " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyFormat("SemaRef.Diag(Loc, diag::note_for_range_begin_end)\n"
+ " << BEF << IsTemplate << Description << E->getType();");
+ verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)\n"
+ " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)\n"
+ " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " << aaa;");
+
+ verifyFormat(
+ "llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();");
+
+ // Incomplete string literal.
+ EXPECT_EQ("llvm::errs() << \"\n"
+ " << a;",
+ format("llvm::errs() << \"\n<<a;"));
+
+ verifyFormat("void f() {\n"
+ " CHECK_EQ(aaaa, (*bbbbbbbbb)->cccccc)\n"
+ " << \"qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\";\n"
+ "}");
+
+ // Handle 'endl'.
+ verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaa << endl\n"
+ " << bbbbbbbbbbbbbbbbbbbbbb << endl;");
+ verifyFormat("llvm::errs() << endl << bbbbbbbbbbbbbbbbbbbbbb << endl;");
+
+ // Handle '\n'.
+ verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaa << \"\\n\"\n"
+ " << bbbbbbbbbbbbbbbbbbbbbb << \"\\n\";");
+ verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaa << \'\\n\'\n"
+ " << bbbbbbbbbbbbbbbbbbbbbb << \'\\n\';");
+ verifyFormat("llvm::errs() << aaaa << \"aaaaaaaaaaaaaaaaaa\\n\"\n"
+ " << bbbb << \"bbbbbbbbbbbbbbbbbb\\n\";");
+ verifyFormat("llvm::errs() << \"\\n\" << bbbbbbbbbbbbbbbbbbbbbb << \"\\n\";");
+}
+
+TEST_F(FormatTest, KeepStringLabelValuePairsOnALine) {
+ verifyFormat("return out << \"somepacket = {\\n\"\n"
+ " << \" aaaaaa = \" << pkt.aaaaaa << \"\\n\"\n"
+ " << \" bbbb = \" << pkt.bbbb << \"\\n\"\n"
+ " << \" cccccc = \" << pkt.cccccc << \"\\n\"\n"
+ " << \" ddd = [\" << pkt.ddd << \"]\\n\"\n"
+ " << \"}\";");
+
+ verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n"
+ " << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n"
+ " << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa;");
+ verifyFormat(
+ "llvm::outs() << \"aaaaaaaaaaaaaaaaa = \" << aaaaaaaaaaaaaaaaa\n"
+ " << \"bbbbbbbbbbbbbbbbb = \" << bbbbbbbbbbbbbbbbb\n"
+ " << \"ccccccccccccccccc = \" << ccccccccccccccccc\n"
+ " << \"ddddddddddddddddd = \" << ddddddddddddddddd\n"
+ " << \"eeeeeeeeeeeeeeeee = \" << eeeeeeeeeeeeeeeee;");
+ verifyFormat("llvm::outs() << aaaaaaaaaaaaaaaaaaaaaaaa << \"=\"\n"
+ " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;");
+ verifyFormat(
+ "void f() {\n"
+ " llvm::outs() << \"aaaaaaaaaaaaaaaaaaaa: \"\n"
+ " << aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n"
+ "}");
+
+ // Breaking before the first "<<" is generally not desirable.
+ verifyFormat(
+ "llvm::errs()\n"
+ " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;",
+ getLLVMStyleWithColumns(70));
+ verifyFormat("llvm::errs() << \"aaaaaaaaaaaaaaaaaaa: \"\n"
+ " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " << \"aaaaaaaaaaaaaaaaaaa: \"\n"
+ " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " << \"aaaaaaaaaaaaaaaaaaa: \"\n"
+ " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;",
+ getLLVMStyleWithColumns(70));
+
+ verifyFormat("string v = \"aaaaaaaaaaaaaaaa: \" + aaaaaaaaaaaaaaaa +\n"
+ " \"aaaaaaaaaaaaaaaa: \" + aaaaaaaaaaaaaaaa +\n"
+ " \"aaaaaaaaaaaaaaaa: \" + aaaaaaaaaaaaaaaa;");
+ verifyFormat("string v = StrCat(\"aaaaaaaaaaaaaaaa: \", aaaaaaaaaaaaaaaa,\n"
+ " \"aaaaaaaaaaaaaaaa: \", aaaaaaaaaaaaaaaa,\n"
+ " \"aaaaaaaaaaaaaaaa: \", aaaaaaaaaaaaaaaa);");
+ verifyFormat("string v = \"aaaaaaaaaaaaaaaa: \" +\n"
+ " (aaaa + aaaa);",
+ getLLVMStyleWithColumns(40));
+ verifyFormat("string v = StrCat(\"aaaaaaaaaaaa: \" +\n"
+ " (aaaaaaa + aaaaa));",
+ getLLVMStyleWithColumns(40));
+ verifyFormat(
+ "string v = StrCat(\"aaaaaaaaaaaaaaaaaaaaaaaaaaa: \",\n"
+ " SomeFunction(aaaaaaaaaaaa, aaaaaaaa.aaaaaaa),\n"
+ " bbbbbbbbbbbbbbbbbbbbbbb);");
+}
+
+TEST_F(FormatTest, UnderstandsEquals) {
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaa =\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyFormat(
+ "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}");
+ verifyFormat(
+ "if (a) {\n"
+ " f();\n"
+ "} else if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n"
+ "}");
+
+ verifyFormat("if (int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n"
+ " 100000000 + 10000000) {\n}");
+}
+
+TEST_F(FormatTest, WrapsAtFunctionCallsIfNecessary) {
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n"
+ " .looooooooooooooooooooooooooooooooooooooongFunction();");
+
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n"
+ " ->looooooooooooooooooooooooooooooooooooooongFunction();");
+
+ verifyFormat(
+ "LooooooooooooooooooooooooooooooooongObject->shortFunction(Parameter1,\n"
+ " Parameter2);");
+
+ verifyFormat(
+ "ShortObject->shortFunction(\n"
+ " LooooooooooooooooooooooooooooooooooooooooooooooongParameter1,\n"
+ " LooooooooooooooooooooooooooooooooooooooooooooooongParameter2);");
+
+ verifyFormat("loooooooooooooongFunction(\n"
+ " LoooooooooooooongObject->looooooooooooooooongFunction());");
+
+ verifyFormat(
+ "function(LoooooooooooooooooooooooooooooooooooongObject\n"
+ " ->loooooooooooooooooooooooooooooooooooooooongFunction());");
+
+ verifyFormat("EXPECT_CALL(SomeObject, SomeFunction(Parameter))\n"
+ " .WillRepeatedly(Return(SomeValue));");
+ verifyFormat("void f() {\n"
+ " EXPECT_CALL(SomeObject, SomeFunction(Parameter))\n"
+ " .Times(2)\n"
+ " .WillRepeatedly(Return(SomeValue));\n"
+ "}");
+ verifyFormat("SomeMap[std::pair(aaaaaaaaaaaa, bbbbbbbbbbbbbbb)].insert(\n"
+ " ccccccccccccccccccccccc);");
+ verifyFormat("aaaaa(aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " .aaaaa(aaaaa),\n"
+ " aaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat("void f() {\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa)->aaaaaaaaa());\n"
+ "}");
+ verifyFormat("aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " .aaaaaaaaaaaaaaa(aa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa));");
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()) {\n"
+ "}");
+
+ // Here, it is not necessary to wrap at "." or "->".
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaa) ||\n"
+ " aaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}");
+ verifyFormat(
+ "aaaaaaaaaaa->aaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaa->aaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa));\n");
+
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa().aaaaaaaaaaaaaaaaa());");
+ verifyFormat("a->aaaaaa()->aaaaaaaaaaa(aaaaaaaa()->aaaaaa()->aaaaa() *\n"
+ " aaaaaaaaa()->aaaaaa()->aaaaa());");
+ verifyFormat("a->aaaaaa()->aaaaaaaaaaa(aaaaaaaa()->aaaaaa()->aaaaa() ||\n"
+ " aaaaaaaaa()->aaaaaa()->aaaaa());");
+
+ verifyFormat("aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " .a();");
+
+ FormatStyle NoBinPacking = getLLVMStyle();
+ NoBinPacking.BinPackParameters = false;
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n"
+ " .aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n"
+ " .aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ NoBinPacking);
+
+ // If there is a subsequent call, change to hanging indentation.
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa))\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa));");
+ verifyFormat("aaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();");
+ verifyFormat("aaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa());");
+}
+
+TEST_F(FormatTest, WrapsTemplateDeclarations) {
+ verifyFormat("template <typename T>\n"
+ "virtual void loooooooooooongFunction(int Param1, int Param2);");
+ verifyFormat("template <typename T>\n"
+ "// T should be one of {A, B}.\n"
+ "virtual void loooooooooooongFunction(int Param1, int Param2);");
+ verifyFormat(
+ "template <typename T>\n"
+ "using comment_to_xml_conversion = comment_to_xml_conversion<T, int>;");
+ verifyFormat("template <typename T>\n"
+ "void f(int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram1,\n"
+ " int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram2);");
+ verifyFormat(
+ "template <typename T>\n"
+ "void looooooooooooooooooooongFunction(int Paaaaaaaaaaaaaaaaaaaaram1,\n"
+ " int Paaaaaaaaaaaaaaaaaaaaram2);");
+ verifyFormat(
+ "template <typename T>\n"
+ "aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat("template <typename T>\n"
+ "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat(
+ "template <typename T1, typename T2 = char, typename T3 = char,\n"
+ " typename T4 = char>\n"
+ "void f();");
+ verifyFormat("template <typename aaaaaaaaaaa, typename bbbbbbbbbbbbb,\n"
+ " template <typename> class cccccccccccccccccccccc,\n"
+ " typename ddddddddddddd>\n"
+ "class C {};");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa>(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+
+ verifyFormat("void f() {\n"
+ " a<aaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaa>(\n"
+ " a(aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa));\n"
+ "}");
+
+ verifyFormat("template <typename T> class C {};");
+ verifyFormat("template <typename T> void f();");
+ verifyFormat("template <typename T> void f() {}");
+ verifyFormat(
+ "aaaaaaaaaaaaa<aaaaaaaaaa, aaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa> *aaaa =\n"
+ " new aaaaaaaaaaaaa<aaaaaaaaaa, aaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>(\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbb);",
+ getLLVMStyleWithColumns(72));
+ EXPECT_EQ("static_cast<A< //\n"
+ " B> *>(\n"
+ "\n"
+ ");",
+ format("static_cast<A<//\n"
+ " B>*>(\n"
+ "\n"
+ " );"));
+ verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " const typename aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaa);");
+
+ FormatStyle AlwaysBreak = getLLVMStyle();
+ AlwaysBreak.AlwaysBreakTemplateDeclarations = FormatStyle::BTDS_Yes;
+ verifyFormat("template <typename T>\nclass C {};", AlwaysBreak);
+ verifyFormat("template <typename T>\nvoid f();", AlwaysBreak);
+ verifyFormat("template <typename T>\nvoid f() {}", AlwaysBreak);
+ verifyFormat("void aaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbbbbb>(\n"
+ " ccccccccccccccccccccccccccccccccccccccccccccccc);");
+ verifyFormat("template <template <typename> class Fooooooo,\n"
+ " template <typename> class Baaaaaaar>\n"
+ "struct C {};",
+ AlwaysBreak);
+ verifyFormat("template <typename T> // T can be A, B or C.\n"
+ "struct C {};",
+ AlwaysBreak);
+ verifyFormat("template <enum E> class A {\n"
+ "public:\n"
+ " E *f();\n"
+ "};");
+
+ FormatStyle NeverBreak = getLLVMStyle();
+ NeverBreak.AlwaysBreakTemplateDeclarations = FormatStyle::BTDS_No;
+ verifyFormat("template <typename T> class C {};", NeverBreak);
+ verifyFormat("template <typename T> void f();", NeverBreak);
+ verifyFormat("template <typename T> void f() {}", NeverBreak);
+ verifyFormat("template <typename T>\nvoid foo(aaaaaaaaaaaaaaaaaaaaaaaaaa "
+ "bbbbbbbbbbbbbbbbbbbb) {}",
+ NeverBreak);
+ verifyFormat("void aaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbbbbb>(\n"
+ " ccccccccccccccccccccccccccccccccccccccccccccccc);",
+ NeverBreak);
+ verifyFormat("template <template <typename> class Fooooooo,\n"
+ " template <typename> class Baaaaaaar>\n"
+ "struct C {};",
+ NeverBreak);
+ verifyFormat("template <typename T> // T can be A, B or C.\n"
+ "struct C {};",
+ NeverBreak);
+ verifyFormat("template <enum E> class A {\n"
+ "public:\n"
+ " E *f();\n"
+ "};",
+ NeverBreak);
+ NeverBreak.PenaltyBreakTemplateDeclaration = 100;
+ verifyFormat("template <typename T> void\nfoo(aaaaaaaaaaaaaaaaaaaaaaaaaa "
+ "bbbbbbbbbbbbbbbbbbbb) {}",
+ NeverBreak);
+}
+
+TEST_F(FormatTest, WrapsTemplateDeclarationsWithComments) {
+ FormatStyle Style = getGoogleStyle(FormatStyle::LK_Cpp);
+ Style.ColumnLimit = 60;
+ EXPECT_EQ("// Baseline - no comments.\n"
+ "template <\n"
+ " typename aaaaaaaaaaaaaaaaaaaaaa<bbbbbbbbbbbb>::value>\n"
+ "void f() {}",
+ format("// Baseline - no comments.\n"
+ "template <\n"
+ " typename aaaaaaaaaaaaaaaaaaaaaa<bbbbbbbbbbbb>::value>\n"
+ "void f() {}",
+ Style));
+
+ EXPECT_EQ("template <\n"
+ " typename aaaaaaaaaa<bbbbbbbbbbbb>::value> // trailing\n"
+ "void f() {}",
+ format("template <\n"
+ " typename aaaaaaaaaa<bbbbbbbbbbbb>::value> // trailing\n"
+ "void f() {}",
+ Style));
+
+ EXPECT_EQ(
+ "template <\n"
+ " typename aaaaaaaaaa<bbbbbbbbbbbb>::value> /* line */\n"
+ "void f() {}",
+ format("template <typename aaaaaaaaaa<bbbbbbbbbbbb>::value> /* line */\n"
+ "void f() {}",
+ Style));
+
+ EXPECT_EQ(
+ "template <\n"
+ " typename aaaaaaaaaa<bbbbbbbbbbbb>::value> // trailing\n"
+ " // multiline\n"
+ "void f() {}",
+ format("template <\n"
+ " typename aaaaaaaaaa<bbbbbbbbbbbb>::value> // trailing\n"
+ " // multiline\n"
+ "void f() {}",
+ Style));
+
+ EXPECT_EQ(
+ "template <typename aaaaaaaaaa<\n"
+ " bbbbbbbbbbbb>::value> // trailing loooong\n"
+ "void f() {}",
+ format(
+ "template <\n"
+ " typename aaaaaaaaaa<bbbbbbbbbbbb>::value> // trailing loooong\n"
+ "void f() {}",
+ Style));
+}
+
+TEST_F(FormatTest, WrapsTemplateParameters) {
+ FormatStyle Style = getLLVMStyle();
+ Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign;
+ Style.BreakBeforeBinaryOperators = FormatStyle::BOS_None;
+ verifyFormat(
+ "template <typename... a> struct q {};\n"
+ "extern q<aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa>\n"
+ " y;",
+ Style);
+ Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign;
+ Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All;
+ verifyFormat(
+ "template <typename... a> struct r {};\n"
+ "extern r<aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa>\n"
+ " y;",
+ Style);
+ Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak;
+ Style.BreakBeforeBinaryOperators = FormatStyle::BOS_None;
+ verifyFormat("template <typename... a> struct s {};\n"
+ "extern s<\n"
+ " aaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaa, "
+ "aaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaa, "
+ "aaaaaaaaaaaaaaaaaaaaaa>\n"
+ " y;",
+ Style);
+ Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak;
+ Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All;
+ verifyFormat("template <typename... a> struct t {};\n"
+ "extern t<\n"
+ " aaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaa, "
+ "aaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaa, "
+ "aaaaaaaaaaaaaaaaaaaaaa>\n"
+ " y;",
+ Style);
+}
+
+TEST_F(FormatTest, WrapsAtNestedNameSpecifiers) {
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa());");
+
+ // FIXME: Should we have the extra indent after the second break?
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();");
+
+ verifyFormat(
+ "aaaaaaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb::\n"
+ " cccccccccccccccccccccccccccccccccccccccccccccc());");
+
+ // Breaking at nested name specifiers is generally not desirable.
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaa);");
+
+ verifyFormat("aaaaaaaaaaaaaaaaaa(aaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaa);",
+ getLLVMStyleWithColumns(74));
+
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();");
+}
+
+TEST_F(FormatTest, UnderstandsTemplateParameters) {
+ verifyFormat("A<int> a;");
+ verifyFormat("A<A<A<int>>> a;");
+ verifyFormat("A<A<A<int, 2>, 3>, 4> a;");
+ verifyFormat("bool x = a < 1 || 2 > a;");
+ verifyFormat("bool x = 5 < f<int>();");
+ verifyFormat("bool x = f<int>() > 5;");
+ verifyFormat("bool x = 5 < a<int>::x;");
+ verifyFormat("bool x = a < 4 ? a > 2 : false;");
+ verifyFormat("bool x = f() ? a < 2 : a > 2;");
+
+ verifyGoogleFormat("A<A<int>> a;");
+ verifyGoogleFormat("A<A<A<int>>> a;");
+ verifyGoogleFormat("A<A<A<A<int>>>> a;");
+ verifyGoogleFormat("A<A<int> > a;");
+ verifyGoogleFormat("A<A<A<int> > > a;");
+ verifyGoogleFormat("A<A<A<A<int> > > > a;");
+ verifyGoogleFormat("A<::A<int>> a;");
+ verifyGoogleFormat("A<::A> a;");
+ verifyGoogleFormat("A< ::A> a;");
+ verifyGoogleFormat("A< ::A<int> > a;");
+ EXPECT_EQ("A<A<A<A>>> a;", format("A<A<A<A> >> a;", getGoogleStyle()));
+ EXPECT_EQ("A<A<A<A>>> a;", format("A<A<A<A>> > a;", getGoogleStyle()));
+ EXPECT_EQ("A<::A<int>> a;", format("A< ::A<int>> a;", getGoogleStyle()));
+ EXPECT_EQ("A<::A<int>> a;", format("A<::A<int> > a;", getGoogleStyle()));
+ EXPECT_EQ("auto x = [] { A<A<A<A>>> a; };",
+ format("auto x=[]{A<A<A<A> >> a;};", getGoogleStyle()));
+
+ verifyFormat("A<A<int>> a;", getChromiumStyle(FormatStyle::LK_Cpp));
+
+ // template closer followed by a token that starts with > or =
+ verifyFormat("bool b = a<1> > 1;");
+ verifyFormat("bool b = a<1> >= 1;");
+ verifyFormat("int i = a<1> >> 1;");
+ FormatStyle Style = getLLVMStyle();
+ Style.SpaceBeforeAssignmentOperators = false;
+ verifyFormat("bool b= a<1> == 1;", Style);
+ verifyFormat("a<int> = 1;", Style);
+ verifyFormat("a<int> >>= 1;", Style);
+
+ verifyFormat("test >> a >> b;");
+ verifyFormat("test << a >> b;");
+
+ verifyFormat("f<int>();");
+ verifyFormat("template <typename T> void f() {}");
+ verifyFormat("struct A<std::enable_if<sizeof(T2) < sizeof(int32)>::type>;");
+ verifyFormat("struct A<std::enable_if<sizeof(T2) ? sizeof(int32) : "
+ "sizeof(char)>::type>;");
+ verifyFormat("template <class T> struct S<std::is_arithmetic<T>{}> {};");
+ verifyFormat("f(a.operator()<A>());");
+ verifyFormat("f(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " .template operator()<A>());",
+ getLLVMStyleWithColumns(35));
+
+ // Not template parameters.
+ verifyFormat("return a < b && c > d;");
+ verifyFormat("void f() {\n"
+ " while (a < b && c > d) {\n"
+ " }\n"
+ "}");
+ verifyFormat("template <typename... Types>\n"
+ "typename enable_if<0 < sizeof...(Types)>::type Foo() {}");
+
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa >> aaaaa);",
+ getLLVMStyleWithColumns(60));
+ verifyFormat("static_assert(is_convertible<A &&, B>::value, \"AAA\");");
+ verifyFormat("Constructor(A... a) : a_(X<A>{std::forward<A>(a)}...) {}");
+ verifyFormat("< < < < < < < < < < < < < < < < < < < < < < < < < < < < < <");
+}
+
+TEST_F(FormatTest, BitshiftOperatorWidth) {
+ EXPECT_EQ("int a = 1 << 2; /* foo\n"
+ " bar */",
+ format("int a=1<<2; /* foo\n"
+ " bar */"));
+
+ EXPECT_EQ("int b = 256 >> 1; /* foo\n"
+ " bar */",
+ format("int b =256>>1 ; /* foo\n"
+ " bar */"));
+}
+
+TEST_F(FormatTest, UnderstandsBinaryOperators) {
+ verifyFormat("COMPARE(a, ==, b);");
+ verifyFormat("auto s = sizeof...(Ts) - 1;");
+}
+
+TEST_F(FormatTest, UnderstandsPointersToMembers) {
+ verifyFormat("int A::*x;");
+ verifyFormat("int (S::*func)(void *);");
+ verifyFormat("void f() { int (S::*func)(void *); }");
+ verifyFormat("typedef bool *(Class::*Member)() const;");
+ verifyFormat("void f() {\n"
+ " (a->*f)();\n"
+ " a->*x;\n"
+ " (a.*f)();\n"
+ " ((*a).*f)();\n"
+ " a.*x;\n"
+ "}");
+ verifyFormat("void f() {\n"
+ " (a->*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(\n"
+ " aaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);\n"
+ "}");
+ verifyFormat(
+ "(aaaaaaaaaa->*bbbbbbb)(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa));");
+ FormatStyle Style = getLLVMStyle();
+ Style.PointerAlignment = FormatStyle::PAS_Left;
+ verifyFormat("typedef bool* (Class::*Member)() const;", Style);
+}
+
+TEST_F(FormatTest, UnderstandsUnaryOperators) {
+ verifyFormat("int a = -2;");
+ verifyFormat("f(-1, -2, -3);");
+ verifyFormat("a[-1] = 5;");
+ verifyFormat("int a = 5 + -2;");
+ verifyFormat("if (i == -1) {\n}");
+ verifyFormat("if (i != -1) {\n}");
+ verifyFormat("if (i > -1) {\n}");
+ verifyFormat("if (i < -1) {\n}");
+ verifyFormat("++(a->f());");
+ verifyFormat("--(a->f());");
+ verifyFormat("(a->f())++;");
+ verifyFormat("a[42]++;");
+ verifyFormat("if (!(a->f())) {\n}");
+ verifyFormat("if (!+i) {\n}");
+ verifyFormat("~&a;");
+
+ verifyFormat("a-- > b;");
+ verifyFormat("b ? -a : c;");
+ verifyFormat("n * sizeof char16;");
+ verifyFormat("n * alignof char16;", getGoogleStyle());
+ verifyFormat("sizeof(char);");
+ verifyFormat("alignof(char);", getGoogleStyle());
+
+ verifyFormat("return -1;");
+ verifyFormat("throw -1;");
+ verifyFormat("switch (a) {\n"
+ "case -1:\n"
+ " break;\n"
+ "}");
+ verifyFormat("#define X -1");
+ verifyFormat("#define X -kConstant");
+
+ verifyFormat("const NSPoint kBrowserFrameViewPatternOffset = {-5, +3};");
+ verifyFormat("const NSPoint kBrowserFrameViewPatternOffset = {+5, -3};");
+
+ verifyFormat("int a = /* confusing comment */ -1;");
+ // FIXME: The space after 'i' is wrong, but hopefully, this is a rare case.
+ verifyFormat("int a = i /* confusing comment */++;");
+
+ verifyFormat("co_yield -1;");
+ verifyFormat("co_return -1;");
+}
+
+TEST_F(FormatTest, DoesNotIndentRelativeToUnaryOperators) {
+ verifyFormat("if (!aaaaaaaaaa( // break\n"
+ " aaaaa)) {\n"
+ "}");
+ verifyFormat("aaaaaaaaaa(!aaaaaaaaaa( // break\n"
+ " aaaaa));");
+ verifyFormat("*aaa = aaaaaaa( // break\n"
+ " bbbbbb);");
+}
+
+TEST_F(FormatTest, UnderstandsOverloadedOperators) {
+ verifyFormat("bool operator<();");
+ verifyFormat("bool operator>();");
+ verifyFormat("bool operator=();");
+ verifyFormat("bool operator==();");
+ verifyFormat("bool operator!=();");
+ verifyFormat("int operator+();");
+ verifyFormat("int operator++();");
+ verifyFormat("int operator++(int) volatile noexcept;");
+ verifyFormat("bool operator,();");
+ verifyFormat("bool operator();");
+ verifyFormat("bool operator()();");
+ verifyFormat("bool operator[]();");
+ verifyFormat("operator bool();");
+ verifyFormat("operator int();");
+ verifyFormat("operator void *();");
+ verifyFormat("operator SomeType<int>();");
+ verifyFormat("operator SomeType<int, int>();");
+ verifyFormat("operator SomeType<SomeType<int>>();");
+ verifyFormat("void *operator new(std::size_t size);");
+ verifyFormat("void *operator new[](std::size_t size);");
+ verifyFormat("void operator delete(void *ptr);");
+ verifyFormat("void operator delete[](void *ptr);");
+ verifyFormat("template <typename AAAAAAA, typename BBBBBBB>\n"
+ "AAAAAAA operator/(const AAAAAAA &a, BBBBBBB &b);");
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaa operator,(\n"
+ " aaaaaaaaaaaaaaaaaaaaa &aaaaaaaaaaaaaaaaaaaaaaaaaa) const;");
+
+ verifyFormat(
+ "ostream &operator<<(ostream &OutputStream,\n"
+ " SomeReallyLongType WithSomeReallyLongValue);");
+ verifyFormat("bool operator<(const aaaaaaaaaaaaaaaaaaaaa &left,\n"
+ " const aaaaaaaaaaaaaaaaaaaaa &right) {\n"
+ " return left.group < right.group;\n"
+ "}");
+ verifyFormat("SomeType &operator=(const SomeType &S);");
+ verifyFormat("f.template operator()<int>();");
+
+ verifyGoogleFormat("operator void*();");
+ verifyGoogleFormat("operator SomeType<SomeType<int>>();");
+ verifyGoogleFormat("operator ::A();");
+
+ verifyFormat("using A::operator+;");
+ verifyFormat("inline A operator^(const A &lhs, const A &rhs) {}\n"
+ "int i;");
+}
+
+TEST_F(FormatTest, UnderstandsFunctionRefQualification) {
+ verifyFormat("Deleted &operator=(const Deleted &) & = default;");
+ verifyFormat("Deleted &operator=(const Deleted &) && = delete;");
+ verifyFormat("SomeType MemberFunction(const Deleted &) & = delete;");
+ verifyFormat("SomeType MemberFunction(const Deleted &) && = delete;");
+ verifyFormat("Deleted &operator=(const Deleted &) &;");
+ verifyFormat("Deleted &operator=(const Deleted &) &&;");
+ verifyFormat("SomeType MemberFunction(const Deleted &) &;");
+ verifyFormat("SomeType MemberFunction(const Deleted &) &&;");
+ verifyFormat("SomeType MemberFunction(const Deleted &) && {}");
+ verifyFormat("SomeType MemberFunction(const Deleted &) && final {}");
+ verifyFormat("SomeType MemberFunction(const Deleted &) && override {}");
+ verifyFormat("void Fn(T const &) const &;");
+ verifyFormat("void Fn(T const volatile &&) const volatile &&;");
+ verifyFormat("template <typename T>\n"
+ "void F(T) && = delete;",
+ getGoogleStyle());
+
+ FormatStyle AlignLeft = getLLVMStyle();
+ AlignLeft.PointerAlignment = FormatStyle::PAS_Left;
+ verifyFormat("void A::b() && {}", AlignLeft);
+ verifyFormat("Deleted& operator=(const Deleted&) & = default;", AlignLeft);
+ verifyFormat("SomeType MemberFunction(const Deleted&) & = delete;",
+ AlignLeft);
+ verifyFormat("Deleted& operator=(const Deleted&) &;", AlignLeft);
+ verifyFormat("SomeType MemberFunction(const Deleted&) &;", AlignLeft);
+ verifyFormat("auto Function(T t) & -> void {}", AlignLeft);
+ verifyFormat("auto Function(T... t) & -> void {}", AlignLeft);
+ verifyFormat("auto Function(T) & -> void {}", AlignLeft);
+ verifyFormat("auto Function(T) & -> void;", AlignLeft);
+ verifyFormat("void Fn(T const&) const&;", AlignLeft);
+ verifyFormat("void Fn(T const volatile&&) const volatile&&;", AlignLeft);
+
+ FormatStyle Spaces = getLLVMStyle();
+ Spaces.SpacesInCStyleCastParentheses = true;
+ verifyFormat("Deleted &operator=(const Deleted &) & = default;", Spaces);
+ verifyFormat("SomeType MemberFunction(const Deleted &) & = delete;", Spaces);
+ verifyFormat("Deleted &operator=(const Deleted &) &;", Spaces);
+ verifyFormat("SomeType MemberFunction(const Deleted &) &;", Spaces);
+
+ Spaces.SpacesInCStyleCastParentheses = false;
+ Spaces.SpacesInParentheses = true;
+ verifyFormat("Deleted &operator=( const Deleted & ) & = default;", Spaces);
+ verifyFormat("SomeType MemberFunction( const Deleted & ) & = delete;",
+ Spaces);
+ verifyFormat("Deleted &operator=( const Deleted & ) &;", Spaces);
+ verifyFormat("SomeType MemberFunction( const Deleted & ) &;", Spaces);
+
+ FormatStyle BreakTemplate = getLLVMStyle();
+ BreakTemplate.AlwaysBreakTemplateDeclarations = FormatStyle::BTDS_Yes;
+
+ verifyFormat("struct f {\n"
+ " template <class T>\n"
+ " int &foo(const std::string &str) &noexcept {}\n"
+ "};",
+ BreakTemplate);
+
+ verifyFormat("struct f {\n"
+ " template <class T>\n"
+ " int &foo(const std::string &str) &&noexcept {}\n"
+ "};",
+ BreakTemplate);
+
+ verifyFormat("struct f {\n"
+ " template <class T>\n"
+ " int &foo(const std::string &str) const &noexcept {}\n"
+ "};",
+ BreakTemplate);
+
+ verifyFormat("struct f {\n"
+ " template <class T>\n"
+ " int &foo(const std::string &str) const &noexcept {}\n"
+ "};",
+ BreakTemplate);
+
+ verifyFormat("struct f {\n"
+ " template <class T>\n"
+ " auto foo(const std::string &str) &&noexcept -> int & {}\n"
+ "};",
+ BreakTemplate);
+
+ FormatStyle AlignLeftBreakTemplate = getLLVMStyle();
+ AlignLeftBreakTemplate.AlwaysBreakTemplateDeclarations =
+ FormatStyle::BTDS_Yes;
+ AlignLeftBreakTemplate.PointerAlignment = FormatStyle::PAS_Left;
+
+ verifyFormat("struct f {\n"
+ " template <class T>\n"
+ " int& foo(const std::string& str) & noexcept {}\n"
+ "};",
+ AlignLeftBreakTemplate);
+
+ verifyFormat("struct f {\n"
+ " template <class T>\n"
+ " int& foo(const std::string& str) && noexcept {}\n"
+ "};",
+ AlignLeftBreakTemplate);
+
+ verifyFormat("struct f {\n"
+ " template <class T>\n"
+ " int& foo(const std::string& str) const& noexcept {}\n"
+ "};",
+ AlignLeftBreakTemplate);
+
+ verifyFormat("struct f {\n"
+ " template <class T>\n"
+ " int& foo(const std::string& str) const&& noexcept {}\n"
+ "};",
+ AlignLeftBreakTemplate);
+
+ verifyFormat("struct f {\n"
+ " template <class T>\n"
+ " auto foo(const std::string& str) && noexcept -> int& {}\n"
+ "};",
+ AlignLeftBreakTemplate);
+
+ // The `&` in `Type&` should not be confused with a trailing `&` of
+ // DEPRECATED(reason) member function.
+ verifyFormat("struct f {\n"
+ " template <class T>\n"
+ " DEPRECATED(reason)\n"
+ " Type &foo(arguments) {}\n"
+ "};",
+ BreakTemplate);
+
+ verifyFormat("struct f {\n"
+ " template <class T>\n"
+ " DEPRECATED(reason)\n"
+ " Type& foo(arguments) {}\n"
+ "};",
+ AlignLeftBreakTemplate);
+
+ verifyFormat("void (*foopt)(int) = &func;");
+}
+
+TEST_F(FormatTest, UnderstandsNewAndDelete) {
+ verifyFormat("void f() {\n"
+ " A *a = new A;\n"
+ " A *a = new (placement) A;\n"
+ " delete a;\n"
+ " delete (A *)a;\n"
+ "}");
+ verifyFormat("new (aaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaa))\n"
+ " typename aaaaaaaaaaaaaaaaaaaaaaaa();");
+ verifyFormat("auto aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n"
+ " new (aaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaa))\n"
+ " typename aaaaaaaaaaaaaaaaaaaaaaaa();");
+ verifyFormat("delete[] h->p;");
+}
+
+TEST_F(FormatTest, UnderstandsUsesOfStarAndAmp) {
+ verifyFormat("int *f(int *a) {}");
+ verifyFormat("int main(int argc, char **argv) {}");
+ verifyFormat("Test::Test(int b) : a(b * b) {}");
+ verifyIndependentOfContext("f(a, *a);");
+ verifyFormat("void g() { f(*a); }");
+ verifyIndependentOfContext("int a = b * 10;");
+ verifyIndependentOfContext("int a = 10 * b;");
+ verifyIndependentOfContext("int a = b * c;");
+ verifyIndependentOfContext("int a += b * c;");
+ verifyIndependentOfContext("int a -= b * c;");
+ verifyIndependentOfContext("int a *= b * c;");
+ verifyIndependentOfContext("int a /= b * c;");
+ verifyIndependentOfContext("int a = *b;");
+ verifyIndependentOfContext("int a = *b * c;");
+ verifyIndependentOfContext("int a = b * *c;");
+ verifyIndependentOfContext("int a = b * (10);");
+ verifyIndependentOfContext("S << b * (10);");
+ verifyIndependentOfContext("return 10 * b;");
+ verifyIndependentOfContext("return *b * *c;");
+ verifyIndependentOfContext("return a & ~b;");
+ verifyIndependentOfContext("f(b ? *c : *d);");
+ verifyIndependentOfContext("int a = b ? *c : *d;");
+ verifyIndependentOfContext("*b = a;");
+ verifyIndependentOfContext("a * ~b;");
+ verifyIndependentOfContext("a * !b;");
+ verifyIndependentOfContext("a * +b;");
+ verifyIndependentOfContext("a * -b;");
+ verifyIndependentOfContext("a * ++b;");
+ verifyIndependentOfContext("a * --b;");
+ verifyIndependentOfContext("a[4] * b;");
+ verifyIndependentOfContext("a[a * a] = 1;");
+ verifyIndependentOfContext("f() * b;");
+ verifyIndependentOfContext("a * [self dostuff];");
+ verifyIndependentOfContext("int x = a * (a + b);");
+ verifyIndependentOfContext("(a *)(a + b);");
+ verifyIndependentOfContext("*(int *)(p & ~3UL) = 0;");
+ verifyIndependentOfContext("int *pa = (int *)&a;");
+ verifyIndependentOfContext("return sizeof(int **);");
+ verifyIndependentOfContext("return sizeof(int ******);");
+ verifyIndependentOfContext("return (int **&)a;");
+ verifyIndependentOfContext("f((*PointerToArray)[10]);");
+ verifyFormat("void f(Type (*parameter)[10]) {}");
+ verifyFormat("void f(Type (&parameter)[10]) {}");
+ verifyGoogleFormat("return sizeof(int**);");
+ verifyIndependentOfContext("Type **A = static_cast<Type **>(P);");
+ verifyGoogleFormat("Type** A = static_cast<Type**>(P);");
+ verifyFormat("auto a = [](int **&, int ***) {};");
+ verifyFormat("auto PointerBinding = [](const char *S) {};");
+ verifyFormat("typedef typeof(int(int, int)) *MyFunc;");
+ verifyFormat("[](const decltype(*a) &value) {}");
+ verifyFormat("decltype(a * b) F();");
+ verifyFormat("#define MACRO() [](A *a) { return 1; }");
+ verifyFormat("Constructor() : member([](A *a, B *b) {}) {}");
+ verifyIndependentOfContext("typedef void (*f)(int *a);");
+ verifyIndependentOfContext("int i{a * b};");
+ verifyIndependentOfContext("aaa && aaa->f();");
+ verifyIndependentOfContext("int x = ~*p;");
+ verifyFormat("Constructor() : a(a), area(width * height) {}");
+ verifyFormat("Constructor() : a(a), area(a, width * height) {}");
+ verifyGoogleFormat("MACRO Constructor(const int& i) : a(a), b(b) {}");
+ verifyFormat("void f() { f(a, c * d); }");
+ verifyFormat("void f() { f(new a(), c * d); }");
+ verifyFormat("void f(const MyOverride &override);");
+ verifyFormat("void f(const MyFinal &final);");
+ verifyIndependentOfContext("bool a = f() && override.f();");
+ verifyIndependentOfContext("bool a = f() && final.f();");
+
+ verifyIndependentOfContext("InvalidRegions[*R] = 0;");
+
+ verifyIndependentOfContext("A<int *> a;");
+ verifyIndependentOfContext("A<int **> a;");
+ verifyIndependentOfContext("A<int *, int *> a;");
+ verifyIndependentOfContext("A<int *[]> a;");
+ verifyIndependentOfContext(
+ "const char *const p = reinterpret_cast<const char *const>(q);");
+ verifyIndependentOfContext("A<int **, int **> a;");
+ verifyIndependentOfContext("void f(int *a = d * e, int *b = c * d);");
+ verifyFormat("for (char **a = b; *a; ++a) {\n}");
+ verifyFormat("for (; a && b;) {\n}");
+ verifyFormat("bool foo = true && [] { return false; }();");
+
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaa, *aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+
+ verifyGoogleFormat("int const* a = &b;");
+ verifyGoogleFormat("**outparam = 1;");
+ verifyGoogleFormat("*outparam = a * b;");
+ verifyGoogleFormat("int main(int argc, char** argv) {}");
+ verifyGoogleFormat("A<int*> a;");
+ verifyGoogleFormat("A<int**> a;");
+ verifyGoogleFormat("A<int*, int*> a;");
+ verifyGoogleFormat("A<int**, int**> a;");
+ verifyGoogleFormat("f(b ? *c : *d);");
+ verifyGoogleFormat("int a = b ? *c : *d;");
+ verifyGoogleFormat("Type* t = **x;");
+ verifyGoogleFormat("Type* t = *++*x;");
+ verifyGoogleFormat("*++*x;");
+ verifyGoogleFormat("Type* t = const_cast<T*>(&*x);");
+ verifyGoogleFormat("Type* t = x++ * y;");
+ verifyGoogleFormat(
+ "const char* const p = reinterpret_cast<const char* const>(q);");
+ verifyGoogleFormat("void f(int i = 0, SomeType** temps = NULL);");
+ verifyGoogleFormat("void f(Bar* a = nullptr, Bar* b);");
+ verifyGoogleFormat("template <typename T>\n"
+ "void f(int i = 0, SomeType** temps = NULL);");
+
+ FormatStyle Left = getLLVMStyle();
+ Left.PointerAlignment = FormatStyle::PAS_Left;
+ verifyFormat("x = *a(x) = *a(y);", Left);
+ verifyFormat("for (;; *a = b) {\n}", Left);
+ verifyFormat("return *this += 1;", Left);
+ verifyFormat("throw *x;", Left);
+ verifyFormat("delete *x;", Left);
+ verifyFormat("typedef typeof(int(int, int))* MyFuncPtr;", Left);
+ verifyFormat("[](const decltype(*a)* ptr) {}", Left);
+ verifyFormat("typedef typeof /*comment*/ (int(int, int))* MyFuncPtr;", Left);
+
+ verifyIndependentOfContext("a = *(x + y);");
+ verifyIndependentOfContext("a = &(x + y);");
+ verifyIndependentOfContext("*(x + y).call();");
+ verifyIndependentOfContext("&(x + y)->call();");
+ verifyFormat("void f() { &(*I).first; }");
+
+ verifyIndependentOfContext("f(b * /* confusing comment */ ++c);");
+ verifyFormat(
+ "int *MyValues = {\n"
+ " *A, // Operator detection might be confused by the '{'\n"
+ " *BB // Operator detection might be confused by previous comment\n"
+ "};");
+
+ verifyIndependentOfContext("if (int *a = &b)");
+ verifyIndependentOfContext("if (int &a = *b)");
+ verifyIndependentOfContext("if (a & b[i])");
+ verifyIndependentOfContext("if constexpr (a & b[i])");
+ verifyIndependentOfContext("if CONSTEXPR (a & b[i])");
+ verifyIndependentOfContext("if (a * (b * c))");
+ verifyIndependentOfContext("if constexpr (a * (b * c))");
+ verifyIndependentOfContext("if CONSTEXPR (a * (b * c))");
+ verifyIndependentOfContext("if (a::b::c::d & b[i])");
+ verifyIndependentOfContext("if (*b[i])");
+ verifyIndependentOfContext("if (int *a = (&b))");
+ verifyIndependentOfContext("while (int *a = &b)");
+ verifyIndependentOfContext("while (a * (b * c))");
+ verifyIndependentOfContext("size = sizeof *a;");
+ verifyIndependentOfContext("if (a && (b = c))");
+ verifyFormat("void f() {\n"
+ " for (const int &v : Values) {\n"
+ " }\n"
+ "}");
+ verifyFormat("for (int i = a * a; i < 10; ++i) {\n}");
+ verifyFormat("for (int i = 0; i < a * a; ++i) {\n}");
+ verifyGoogleFormat("for (int i = 0; i * 2 < z; i *= 2) {\n}");
+
+ verifyFormat("#define A (!a * b)");
+ verifyFormat("#define MACRO \\\n"
+ " int *i = a * b; \\\n"
+ " void f(a *b);",
+ getLLVMStyleWithColumns(19));
+
+ verifyIndependentOfContext("A = new SomeType *[Length];");
+ verifyIndependentOfContext("A = new SomeType *[Length]();");
+ verifyIndependentOfContext("T **t = new T *;");
+ verifyIndependentOfContext("T **t = new T *();");
+ verifyGoogleFormat("A = new SomeType*[Length]();");
+ verifyGoogleFormat("A = new SomeType*[Length];");
+ verifyGoogleFormat("T** t = new T*;");
+ verifyGoogleFormat("T** t = new T*();");
+
+ verifyFormat("STATIC_ASSERT((a & b) == 0);");
+ verifyFormat("STATIC_ASSERT(0 == (a & b));");
+ verifyFormat("template <bool a, bool b> "
+ "typename t::if<x && y>::type f() {}");
+ verifyFormat("template <int *y> f() {}");
+ verifyFormat("vector<int *> v;");
+ verifyFormat("vector<int *const> v;");
+ verifyFormat("vector<int *const **const *> v;");
+ verifyFormat("vector<int *volatile> v;");
+ verifyFormat("vector<a * b> v;");
+ verifyFormat("foo<b && false>();");
+ verifyFormat("foo<b & 1>();");
+ verifyFormat("decltype(*::std::declval<const T &>()) void F();");
+ verifyFormat(
+ "template <class T, class = typename std::enable_if<\n"
+ " std::is_integral<T>::value &&\n"
+ " (sizeof(T) > 1 || sizeof(T) < 8)>::type>\n"
+ "void F();",
+ getLLVMStyleWithColumns(70));
+ verifyFormat("template <class T,\n"
+ " class = typename std::enable_if<\n"
+ " std::is_integral<T>::value &&\n"
+ " (sizeof(T) > 1 || sizeof(T) < 8)>::type,\n"
+ " class U>\n"
+ "void F();",
+ getLLVMStyleWithColumns(70));
+ verifyFormat(
+ "template <class T,\n"
+ " class = typename ::std::enable_if<\n"
+ " ::std::is_array<T>{} && ::std::is_array<T>{}>::type>\n"
+ "void F();",
+ getGoogleStyleWithColumns(68));
+
+ verifyIndependentOfContext("MACRO(int *i);");
+ verifyIndependentOfContext("MACRO(auto *a);");
+ verifyIndependentOfContext("MACRO(const A *a);");
+ verifyIndependentOfContext("MACRO(A *const a);");
+ verifyIndependentOfContext("MACRO('0' <= c && c <= '9');");
+ verifyFormat("void f() { f(float{1}, a * a); }");
+ // FIXME: Is there a way to make this work?
+ // verifyIndependentOfContext("MACRO(A *a);");
+
+ verifyFormat("DatumHandle const *operator->() const { return input_; }");
+ verifyFormat("return options != nullptr && operator==(*options);");
+
+ EXPECT_EQ("#define OP(x) \\\n"
+ " ostream &operator<<(ostream &s, const A &a) { \\\n"
+ " return s << a.DebugString(); \\\n"
+ " }",
+ format("#define OP(x) \\\n"
+ " ostream &operator<<(ostream &s, const A &a) { \\\n"
+ " return s << a.DebugString(); \\\n"
+ " }",
+ getLLVMStyleWithColumns(50)));
+
+ // FIXME: We cannot handle this case yet; we might be able to figure out that
+ // foo<x> d > v; doesn't make sense.
+ verifyFormat("foo<a<b && c> d> v;");
+
+ FormatStyle PointerMiddle = getLLVMStyle();
+ PointerMiddle.PointerAlignment = FormatStyle::PAS_Middle;
+ verifyFormat("delete *x;", PointerMiddle);
+ verifyFormat("int * x;", PointerMiddle);
+ verifyFormat("int *[] x;", PointerMiddle);
+ verifyFormat("template <int * y> f() {}", PointerMiddle);
+ verifyFormat("int * f(int * a) {}", PointerMiddle);
+ verifyFormat("int main(int argc, char ** argv) {}", PointerMiddle);
+ verifyFormat("Test::Test(int b) : a(b * b) {}", PointerMiddle);
+ verifyFormat("A<int *> a;", PointerMiddle);
+ verifyFormat("A<int **> a;", PointerMiddle);
+ verifyFormat("A<int *, int *> a;", PointerMiddle);
+ verifyFormat("A<int *[]> a;", PointerMiddle);
+ verifyFormat("A = new SomeType *[Length]();", PointerMiddle);
+ verifyFormat("A = new SomeType *[Length];", PointerMiddle);
+ verifyFormat("T ** t = new T *;", PointerMiddle);
+
+ // Member function reference qualifiers aren't binary operators.
+ verifyFormat("string // break\n"
+ "operator()() & {}");
+ verifyFormat("string // break\n"
+ "operator()() && {}");
+ verifyGoogleFormat("template <typename T>\n"
+ "auto x() & -> int {}");
+}
+
+TEST_F(FormatTest, UnderstandsAttributes) {
+ verifyFormat("SomeType s __attribute__((unused)) (InitValue);");
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa __attribute__((unused))\n"
+ "aaaaaaaaaaaaaaaaaaaaaaa(int i);");
+ FormatStyle AfterType = getLLVMStyle();
+ AfterType.AlwaysBreakAfterReturnType = FormatStyle::RTBS_AllDefinitions;
+ verifyFormat("__attribute__((nodebug)) void\n"
+ "foo() {}\n",
+ AfterType);
+}
+
+TEST_F(FormatTest, UnderstandsSquareAttributes) {
+ verifyFormat("SomeType s [[unused]] (InitValue);");
+ verifyFormat("SomeType s [[gnu::unused]] (InitValue);");
+ verifyFormat("SomeType s [[using gnu: unused]] (InitValue);");
+ verifyFormat("[[gsl::suppress(\"clang-tidy-check-name\")]] void f() {}");
+ verifyFormat("void f() [[deprecated(\"so sorry\")]];");
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " [[unused]] aaaaaaaaaaaaaaaaaaaaaaa(int i);");
+
+ // Make sure we do not mistake attributes for array subscripts.
+ verifyFormat("int a() {}\n"
+ "[[unused]] int b() {}\n");
+ verifyFormat("NSArray *arr;\n"
+ "arr[[Foo() bar]];");
+
+ // On the other hand, we still need to correctly find array subscripts.
+ verifyFormat("int a = std::vector<int>{1, 2, 3}[0];");
+
+ // Make sure that we do not mistake Objective-C method inside array literals
+ // as attributes, even if those method names are also keywords.
+ verifyFormat("@[ [foo bar] ];");
+ verifyFormat("@[ [NSArray class] ];");
+ verifyFormat("@[ [foo enum] ];");
+
+ // Make sure we do not parse attributes as lambda introducers.
+ FormatStyle MultiLineFunctions = getLLVMStyle();
+ MultiLineFunctions.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None;
+ verifyFormat("[[unused]] int b() {\n"
+ " return 42;\n"
+ "}\n",
+ MultiLineFunctions);
+}
+
+TEST_F(FormatTest, UnderstandsEllipsis) {
+ verifyFormat("int printf(const char *fmt, ...);");
+ verifyFormat("template <class... Ts> void Foo(Ts... ts) { Foo(ts...); }");
+ verifyFormat("template <class... Ts> void Foo(Ts *... ts) {}");
+
+ FormatStyle PointersLeft = getLLVMStyle();
+ PointersLeft.PointerAlignment = FormatStyle::PAS_Left;
+ verifyFormat("template <class... Ts> void Foo(Ts*... ts) {}", PointersLeft);
+}
+
+TEST_F(FormatTest, AdaptivelyFormatsPointersAndReferences) {
+ EXPECT_EQ("int *a;\n"
+ "int *a;\n"
+ "int *a;",
+ format("int *a;\n"
+ "int* a;\n"
+ "int *a;",
+ getGoogleStyle()));
+ EXPECT_EQ("int* a;\n"
+ "int* a;\n"
+ "int* a;",
+ format("int* a;\n"
+ "int* a;\n"
+ "int *a;",
+ getGoogleStyle()));
+ EXPECT_EQ("int *a;\n"
+ "int *a;\n"
+ "int *a;",
+ format("int *a;\n"
+ "int * a;\n"
+ "int * a;",
+ getGoogleStyle()));
+ EXPECT_EQ("auto x = [] {\n"
+ " int *a;\n"
+ " int *a;\n"
+ " int *a;\n"
+ "};",
+ format("auto x=[]{int *a;\n"
+ "int * a;\n"
+ "int * a;};",
+ getGoogleStyle()));
+}
+
+TEST_F(FormatTest, UnderstandsRvalueReferences) {
+ verifyFormat("int f(int &&a) {}");
+ verifyFormat("int f(int a, char &&b) {}");
+ verifyFormat("void f() { int &&a = b; }");
+ verifyGoogleFormat("int f(int a, char&& b) {}");
+ verifyGoogleFormat("void f() { int&& a = b; }");
+
+ verifyIndependentOfContext("A<int &&> a;");
+ verifyIndependentOfContext("A<int &&, int &&> a;");
+ verifyGoogleFormat("A<int&&> a;");
+ verifyGoogleFormat("A<int&&, int&&> a;");
+
+ // Not rvalue references:
+ verifyFormat("template <bool B, bool C> class A {\n"
+ " static_assert(B && C, \"Something is wrong\");\n"
+ "};");
+ verifyGoogleFormat("#define IF(a, b, c) if (a && (b == c))");
+ verifyGoogleFormat("#define WHILE(a, b, c) while (a && (b == c))");
+ verifyFormat("#define A(a, b) (a && b)");
+}
+
+TEST_F(FormatTest, FormatsBinaryOperatorsPrecedingEquals) {
+ verifyFormat("void f() {\n"
+ " x[aaaaaaaaa -\n"
+ " b] = 23;\n"
+ "}",
+ getLLVMStyleWithColumns(15));
+}
+
+TEST_F(FormatTest, FormatsCasts) {
+ verifyFormat("Type *A = static_cast<Type *>(P);");
+ verifyFormat("Type *A = (Type *)P;");
+ verifyFormat("Type *A = (vector<Type *, int *>)P;");
+ verifyFormat("int a = (int)(2.0f);");
+ verifyFormat("int a = (int)2.0f;");
+ verifyFormat("x[(int32)y];");
+ verifyFormat("x = (int32)y;");
+ verifyFormat("#define AA(X) sizeof(((X *)NULL)->a)");
+ verifyFormat("int a = (int)*b;");
+ verifyFormat("int a = (int)2.0f;");
+ verifyFormat("int a = (int)~0;");
+ verifyFormat("int a = (int)++a;");
+ verifyFormat("int a = (int)sizeof(int);");
+ verifyFormat("int a = (int)+2;");
+ verifyFormat("my_int a = (my_int)2.0f;");
+ verifyFormat("my_int a = (my_int)sizeof(int);");
+ verifyFormat("return (my_int)aaa;");
+ verifyFormat("#define x ((int)-1)");
+ verifyFormat("#define LENGTH(x, y) (x) - (y) + 1");
+ verifyFormat("#define p(q) ((int *)&q)");
+ verifyFormat("fn(a)(b) + 1;");
+
+ verifyFormat("void f() { my_int a = (my_int)*b; }");
+ verifyFormat("void f() { return P ? (my_int)*P : (my_int)0; }");
+ verifyFormat("my_int a = (my_int)~0;");
+ verifyFormat("my_int a = (my_int)++a;");
+ verifyFormat("my_int a = (my_int)-2;");
+ verifyFormat("my_int a = (my_int)1;");
+ verifyFormat("my_int a = (my_int *)1;");
+ verifyFormat("my_int a = (const my_int)-1;");
+ verifyFormat("my_int a = (const my_int *)-1;");
+ verifyFormat("my_int a = (my_int)(my_int)-1;");
+ verifyFormat("my_int a = (ns::my_int)-2;");
+ verifyFormat("case (my_int)ONE:");
+ verifyFormat("auto x = (X)this;");
+ // Casts in Obj-C style calls used to not be recognized as such.
+ verifyFormat("int a = [(type*)[((type*)val) arg] arg];", getGoogleStyle());
+
+ // FIXME: single value wrapped with paren will be treated as cast.
+ verifyFormat("void f(int i = (kValue)*kMask) {}");
+
+ verifyFormat("{ (void)F; }");
+
+ // Don't break after a cast's
+ verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaa =\n"
+ " (aaaaaaaaaaaaaaaaaaaaaaaaaa *)(aaaaaaaaaaaaaaaaaaaaaa +\n"
+ " bbbbbbbbbbbbbbbbbbbbbb);");
+
+ // These are not casts.
+ verifyFormat("void f(int *) {}");
+ verifyFormat("f(foo)->b;");
+ verifyFormat("f(foo).b;");
+ verifyFormat("f(foo)(b);");
+ verifyFormat("f(foo)[b];");
+ verifyFormat("[](foo) { return 4; }(bar);");
+ verifyFormat("(*funptr)(foo)[4];");
+ verifyFormat("funptrs[4](foo)[4];");
+ verifyFormat("void f(int *);");
+ verifyFormat("void f(int *) = 0;");
+ verifyFormat("void f(SmallVector<int>) {}");
+ verifyFormat("void f(SmallVector<int>);");
+ verifyFormat("void f(SmallVector<int>) = 0;");
+ verifyFormat("void f(int i = (kA * kB) & kMask) {}");
+ verifyFormat("int a = sizeof(int) * b;");
+ verifyFormat("int a = alignof(int) * b;", getGoogleStyle());
+ verifyFormat("template <> void f<int>(int i) SOME_ANNOTATION;");
+ verifyFormat("f(\"%\" SOME_MACRO(ll) \"d\");");
+ verifyFormat("aaaaa &operator=(const aaaaa &) LLVM_DELETED_FUNCTION;");
+
+ // These are not casts, but at some point were confused with casts.
+ verifyFormat("virtual void foo(int *) override;");
+ verifyFormat("virtual void foo(char &) const;");
+ verifyFormat("virtual void foo(int *a, char *) const;");
+ verifyFormat("int a = sizeof(int *) + b;");
+ verifyFormat("int a = alignof(int *) + b;", getGoogleStyle());
+ verifyFormat("bool b = f(g<int>) && c;");
+ verifyFormat("typedef void (*f)(int i) func;");
+ verifyFormat("void operator++(int) noexcept;");
+ verifyFormat("void operator++(int &) noexcept;");
+ verifyFormat("void operator delete(void *, std::size_t, const std::nothrow_t "
+ "&) noexcept;");
+ verifyFormat(
+ "void operator delete(std::size_t, const std::nothrow_t &) noexcept;");
+ verifyFormat("void operator delete(const std::nothrow_t &) noexcept;");
+ verifyFormat("void operator delete(std::nothrow_t &) noexcept;");
+ verifyFormat("void operator delete(nothrow_t &) noexcept;");
+ verifyFormat("void operator delete(foo &) noexcept;");
+ verifyFormat("void operator delete(foo) noexcept;");
+ verifyFormat("void operator delete(int) noexcept;");
+ verifyFormat("void operator delete(int &) noexcept;");
+ verifyFormat("void operator delete(int &) volatile noexcept;");
+ verifyFormat("void operator delete(int &) const");
+ verifyFormat("void operator delete(int &) = default");
+ verifyFormat("void operator delete(int &) = delete");
+ verifyFormat("void operator delete(int &) [[noreturn]]");
+ verifyFormat("void operator delete(int &) throw();");
+ verifyFormat("void operator delete(int &) throw(int);");
+ verifyFormat("auto operator delete(int &) -> int;");
+ verifyFormat("auto operator delete(int &) override");
+ verifyFormat("auto operator delete(int &) final");
+
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *foo = (aaaaaaaaaaaaaaaaa *)\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;");
+ // FIXME: The indentation here is not ideal.
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = (*cccccccccccccccc)\n"
+ " [dddddddddddddddddddddddddddddddddddddddddddddddddddddddd];");
+}
+
+TEST_F(FormatTest, FormatsFunctionTypes) {
+ verifyFormat("A<bool()> a;");
+ verifyFormat("A<SomeType()> a;");
+ verifyFormat("A<void (*)(int, std::string)> a;");
+ verifyFormat("A<void *(int)>;");
+ verifyFormat("void *(*a)(int *, SomeType *);");
+ verifyFormat("int (*func)(void *);");
+ verifyFormat("void f() { int (*func)(void *); }");
+ verifyFormat("template <class CallbackClass>\n"
+ "using MyCallback = void (CallbackClass::*)(SomeObject *Data);");
+
+ verifyGoogleFormat("A<void*(int*, SomeType*)>;");
+ verifyGoogleFormat("void* (*a)(int);");
+ verifyGoogleFormat(
+ "template <class CallbackClass>\n"
+ "using MyCallback = void (CallbackClass::*)(SomeObject* Data);");
+
+ // Other constructs can look somewhat like function types:
+ verifyFormat("A<sizeof(*x)> a;");
+ verifyFormat("#define DEREF_AND_CALL_F(x) f(*x)");
+ verifyFormat("some_var = function(*some_pointer_var)[0];");
+ verifyFormat("void f() { function(*some_pointer_var)[0] = 10; }");
+ verifyFormat("int x = f(&h)();");
+ verifyFormat("returnsFunction(&param1, &param2)(param);");
+ verifyFormat("std::function<\n"
+ " LooooooooooongTemplatedType<\n"
+ " SomeType>*(\n"
+ " LooooooooooooooooongType type)>\n"
+ " function;",
+ getGoogleStyleWithColumns(40));
+}
+
+TEST_F(FormatTest, FormatsPointersToArrayTypes) {
+ verifyFormat("A (*foo_)[6];");
+ verifyFormat("vector<int> (*foo_)[6];");
+}
+
+TEST_F(FormatTest, BreaksLongVariableDeclarations) {
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n"
+ " LoooooooooooooooooooooooooooooooooooooooongVariable;");
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType const\n"
+ " LoooooooooooooooooooooooooooooooooooooooongVariable;");
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n"
+ " *LoooooooooooooooooooooooooooooooooooooooongVariable;");
+
+ // Different ways of ()-initializiation.
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n"
+ " LoooooooooooooooooooooooooooooooooooooooongVariable(1);");
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n"
+ " LoooooooooooooooooooooooooooooooooooooooongVariable(a);");
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n"
+ " LoooooooooooooooooooooooooooooooooooooooongVariable({});");
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n"
+ " LoooooooooooooooooooooooooooooooooooooongVariable([A a]);");
+
+ // Lambdas should not confuse the variable declaration heuristic.
+ verifyFormat("LooooooooooooooooongType\n"
+ " variable(nullptr, [](A *a) {});",
+ getLLVMStyleWithColumns(40));
+}
+
+TEST_F(FormatTest, BreaksLongDeclarations) {
+ verifyFormat("typedef LoooooooooooooooooooooooooooooooooooooooongType\n"
+ " AnotherNameForTheLongType;");
+ verifyFormat("typedef LongTemplateType<aaaaaaaaaaaaaaaaaaa()>\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n"
+ "LoooooooooooooooooooooooooooooooongFunctionDeclaration();");
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType *\n"
+ "LoooooooooooooooooooooooooooooooongFunctionDeclaration();");
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n"
+ "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}");
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType MACRO\n"
+ "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}");
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType const\n"
+ "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}");
+ verifyFormat("decltype(LoooooooooooooooooooooooooooooooooooooooongName)\n"
+ "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}");
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n"
+ "LooooooooooooooooooooooooooongFunctionDeclaration(T... t);");
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n"
+ "LooooooooooooooooooooooooooongFunctionDeclaration(T /*t*/) {}");
+ FormatStyle Indented = getLLVMStyle();
+ Indented.IndentWrappedFunctionNames = true;
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n"
+ " LoooooooooooooooooooooooooooooooongFunctionDeclaration();",
+ Indented);
+ verifyFormat(
+ "LoooooooooooooooooooooooooooooooooooooooongReturnType\n"
+ " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}",
+ Indented);
+ verifyFormat(
+ "LoooooooooooooooooooooooooooooooooooooooongReturnType const\n"
+ " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}",
+ Indented);
+ verifyFormat(
+ "decltype(LoooooooooooooooooooooooooooooooooooooooongName)\n"
+ " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}",
+ Indented);
+
+ // FIXME: Without the comment, this breaks after "(".
+ verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType // break\n"
+ " (*LoooooooooooooooooooooooooooongFunctionTypeVarialbe)();",
+ getGoogleStyle());
+
+ verifyFormat("int *someFunction(int LoooooooooooooooooooongParam1,\n"
+ " int LoooooooooooooooooooongParam2) {}");
+ verifyFormat(
+ "TypeSpecDecl *TypeSpecDecl::Create(ASTContext &C, DeclContext *DC,\n"
+ " SourceLocation L, IdentifierIn *II,\n"
+ " Type *T) {}");
+ verifyFormat("ReallyLongReturnType<TemplateParam1, TemplateParam2>\n"
+ "ReallyReaaallyLongFunctionName(\n"
+ " const std::string &SomeParameter,\n"
+ " const SomeType<string, SomeOtherTemplateParameter>\n"
+ " &ReallyReallyLongParameterName,\n"
+ " const SomeType<string, SomeOtherTemplateParameter>\n"
+ " &AnotherLongParameterName) {}");
+ verifyFormat("template <typename A>\n"
+ "SomeLoooooooooooooooooooooongType<\n"
+ " typename some_namespace::SomeOtherType<A>::Type>\n"
+ "Function() {}");
+
+ verifyGoogleFormat(
+ "aaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaa<aaaaaaaaaaaaa, aaaaaaaaaaaa>\n"
+ " aaaaaaaaaaaaaaaaaaaaaaa;");
+ verifyGoogleFormat(
+ "TypeSpecDecl* TypeSpecDecl::Create(ASTContext& C, DeclContext* DC,\n"
+ " SourceLocation L) {}");
+ verifyGoogleFormat(
+ "some_namespace::LongReturnType\n"
+ "long_namespace::SomeVeryLongClass::SomeVeryLongFunction(\n"
+ " int first_long_parameter, int second_parameter) {}");
+
+ verifyGoogleFormat("template <typename T>\n"
+ "aaaaaaaa::aaaaa::aaaaaa<T, aaaaaaaaaaaaaaaaaaaaaaaaa>\n"
+ "aaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaa() {}");
+ verifyGoogleFormat("A<A<A>> aaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaa);");
+
+ verifyFormat("typedef size_t (*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(\n"
+ " const aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " *aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " vector<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaa);");
+ verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " vector<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>>\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+
+ verifyFormat("template <typename T> // Templates on own line.\n"
+ "static int // Some comment.\n"
+ "MyFunction(int a);",
+ getLLVMStyle());
+}
+
+TEST_F(FormatTest, FormatsArrays) {
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaaaaaaaaaaaaaaa]\n"
+ " [bbbbbbbbbbbbbbbbbbbbbbbbb] = c;");
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaa(aaaaaaaaaaaa)]\n"
+ " [bbbbbbbbbbb(bbbbbbbbbbbb)] = c;");
+ verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaa &&\n"
+ " aaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaaa][aaaaaaaaaaaaa]) {\n}");
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = ccccccccccc;");
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " [a][bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = cccccccc;");
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]\n"
+ " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = ccccccccccc;");
+ verifyFormat(
+ "llvm::outs() << \"aaaaaaaaaaaa: \"\n"
+ " << (*aaaaaaaiaaaaaaa)[aaaaaaaaaaaaaaaaaaaaaaaaa]\n"
+ " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];");
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaaaaaaa][a]\n"
+ " .aaaaaaaaaaaaaaaaaaaaaa();");
+
+ verifyGoogleFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<int>\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaa];");
+ verifyFormat(
+ "aaaaaaaaaaa aaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaa->aaaaaaaaa[0]\n"
+ " .aaaaaaa[0]\n"
+ " .aaaaaaaaaaaaaaaaaaaaaa();");
+ verifyFormat("a[::b::c];");
+
+ verifyNoCrash("a[,Y?)]", getLLVMStyleWithColumns(10));
+
+ FormatStyle NoColumnLimit = getLLVMStyleWithColumns(0);
+ verifyFormat("aaaaa[bbbbbb].cccccc()", NoColumnLimit);
+}
+
+TEST_F(FormatTest, LineStartsWithSpecialCharacter) {
+ verifyFormat("(a)->b();");
+ verifyFormat("--a;");
+}
+
+TEST_F(FormatTest, HandlesIncludeDirectives) {
+ verifyFormat("#include <string>\n"
+ "#include <a/b/c.h>\n"
+ "#include \"a/b/string\"\n"
+ "#include \"string.h\"\n"
+ "#include \"string.h\"\n"
+ "#include <a-a>\n"
+ "#include < path with space >\n"
+ "#include_next <test.h>"
+ "#include \"abc.h\" // this is included for ABC\n"
+ "#include \"some long include\" // with a comment\n"
+ "#include \"some very long include path\"\n"
+ "#include <some/very/long/include/path>\n",
+ getLLVMStyleWithColumns(35));
+ EXPECT_EQ("#include \"a.h\"", format("#include \"a.h\""));
+ EXPECT_EQ("#include <a>", format("#include<a>"));
+
+ verifyFormat("#import <string>");
+ verifyFormat("#import <a/b/c.h>");
+ verifyFormat("#import \"a/b/string\"");
+ verifyFormat("#import \"string.h\"");
+ verifyFormat("#import \"string.h\"");
+ verifyFormat("#if __has_include(<strstream>)\n"
+ "#include <strstream>\n"
+ "#endif");
+
+ verifyFormat("#define MY_IMPORT <a/b>");
+
+ verifyFormat("#if __has_include(<a/b>)");
+ verifyFormat("#if __has_include_next(<a/b>)");
+ verifyFormat("#define F __has_include(<a/b>)");
+ verifyFormat("#define F __has_include_next(<a/b>)");
+
+ // Protocol buffer definition or missing "#".
+ verifyFormat("import \"aaaaaaaaaaaaaaaaa/aaaaaaaaaaaaaaa\";",
+ getLLVMStyleWithColumns(30));
+
+ FormatStyle Style = getLLVMStyle();
+ Style.AlwaysBreakBeforeMultilineStrings = true;
+ Style.ColumnLimit = 0;
+ verifyFormat("#import \"abc.h\"", Style);
+
+ // But 'import' might also be a regular C++ namespace.
+ verifyFormat("import::SomeFunction(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
+}
+
+//===----------------------------------------------------------------------===//
+// Error recovery tests.
+//===----------------------------------------------------------------------===//
+
+TEST_F(FormatTest, IncompleteParameterLists) {
+ FormatStyle NoBinPacking = getLLVMStyle();
+ NoBinPacking.BinPackParameters = false;
+ verifyFormat("void aaaaaaaaaaaaaaaaaa(int level,\n"
+ " double *min_x,\n"
+ " double *max_x,\n"
+ " double *min_y,\n"
+ " double *max_y,\n"
+ " double *min_z,\n"
+ " double *max_z, ) {}",
+ NoBinPacking);
+}
+
+TEST_F(FormatTest, IncorrectCodeTrailingStuff) {
+ verifyFormat("void f() { return; }\n42");
+ verifyFormat("void f() {\n"
+ " if (0)\n"
+ " return;\n"
+ "}\n"
+ "42");
+ verifyFormat("void f() { return }\n42");
+ verifyFormat("void f() {\n"
+ " if (0)\n"
+ " return\n"
+ "}\n"
+ "42");
+}
+
+TEST_F(FormatTest, IncorrectCodeMissingSemicolon) {
+ EXPECT_EQ("void f() { return }", format("void f ( ) { return }"));
+ EXPECT_EQ("void f() {\n"
+ " if (a)\n"
+ " return\n"
+ "}",
+ format("void f ( ) { if ( a ) return }"));
+ EXPECT_EQ("namespace N {\n"
+ "void f()\n"
+ "}",
+ format("namespace N { void f() }"));
+ EXPECT_EQ("namespace N {\n"
+ "void f() {}\n"
+ "void g()\n"
+ "} // namespace N",
+ format("namespace N { void f( ) { } void g( ) }"));
+}
+
+TEST_F(FormatTest, IndentationWithinColumnLimitNotPossible) {
+ verifyFormat("int aaaaaaaa =\n"
+ " // Overlylongcomment\n"
+ " b;",
+ getLLVMStyleWithColumns(20));
+ verifyFormat("function(\n"
+ " ShortArgument,\n"
+ " LoooooooooooongArgument);\n",
+ getLLVMStyleWithColumns(20));
+}
+
+TEST_F(FormatTest, IncorrectAccessSpecifier) {
+ verifyFormat("public:");
+ verifyFormat("class A {\n"
+ "public\n"
+ " void f() {}\n"
+ "};");
+ verifyFormat("public\n"
+ "int qwerty;");
+ verifyFormat("public\n"
+ "B {}");
+ verifyFormat("public\n"
+ "{}");
+ verifyFormat("public\n"
+ "B { int x; }");
+}
+
+TEST_F(FormatTest, IncorrectCodeUnbalancedBraces) {
+ verifyFormat("{");
+ verifyFormat("#})");
+ verifyNoCrash("(/**/[:!] ?[).");
+}
+
+TEST_F(FormatTest, IncorrectUnbalancedBracesInMacrosWithUnicode) {
+ // Found by oss-fuzz:
+ // https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8212
+ FormatStyle Style = getGoogleStyle(FormatStyle::LK_Cpp);
+ Style.ColumnLimit = 60;
+ verifyNoCrash(
+ "\x23\x47\xff\x20\x28\xff\x3c\xff\x3f\xff\x20\x2f\x7b\x7a\xff\x20"
+ "\xff\xff\xff\xca\xb5\xff\xff\xff\xff\x3a\x7b\x7d\xff\x20\xff\x20"
+ "\xff\x74\xff\x20\x7d\x7d\xff\x7b\x3a\xff\x20\x71\xff\x20\xff\x0a",
+ Style);
+}
+
+TEST_F(FormatTest, IncorrectCodeDoNoWhile) {
+ verifyFormat("do {\n}");
+ verifyFormat("do {\n}\n"
+ "f();");
+ verifyFormat("do {\n}\n"
+ "wheeee(fun);");
+ verifyFormat("do {\n"
+ " f();\n"
+ "}");
+}
+
+TEST_F(FormatTest, IncorrectCodeMissingParens) {
+ verifyFormat("if {\n foo;\n foo();\n}");
+ verifyFormat("switch {\n foo;\n foo();\n}");
+ verifyIncompleteFormat("for {\n foo;\n foo();\n}");
+ verifyFormat("while {\n foo;\n foo();\n}");
+ verifyFormat("do {\n foo;\n foo();\n} while;");
+}
+
+TEST_F(FormatTest, DoesNotTouchUnwrappedLinesWithErrors) {
+ verifyIncompleteFormat("namespace {\n"
+ "class Foo { Foo (\n"
+ "};\n"
+ "} // namespace");
+}
+
+TEST_F(FormatTest, IncorrectCodeErrorDetection) {
+ EXPECT_EQ("{\n {}\n", format("{\n{\n}\n"));
+ EXPECT_EQ("{\n {}\n", format("{\n {\n}\n"));
+ EXPECT_EQ("{\n {}\n", format("{\n {\n }\n"));
+ EXPECT_EQ("{\n {}\n}\n}\n", format("{\n {\n }\n }\n}\n"));
+
+ EXPECT_EQ("{\n"
+ " {\n"
+ " breakme(\n"
+ " qwe);\n"
+ " }\n",
+ format("{\n"
+ " {\n"
+ " breakme(qwe);\n"
+ "}\n",
+ getLLVMStyleWithColumns(10)));
+}
+
+TEST_F(FormatTest, LayoutCallsInsideBraceInitializers) {
+ verifyFormat("int x = {\n"
+ " avariable,\n"
+ " b(alongervariable)};",
+ getLLVMStyleWithColumns(25));
+}
+
+TEST_F(FormatTest, LayoutBraceInitializersInReturnStatement) {
+ verifyFormat("return (a)(b){1, 2, 3};");
+}
+
+TEST_F(FormatTest, LayoutCxx11BraceInitializers) {
+ verifyFormat("vector<int> x{1, 2, 3, 4};");
+ verifyFormat("vector<int> x{\n"
+ " 1,\n"
+ " 2,\n"
+ " 3,\n"
+ " 4,\n"
+ "};");
+ verifyFormat("vector<T> x{{}, {}, {}, {}};");
+ verifyFormat("f({1, 2});");
+ verifyFormat("auto v = Foo{-1};");
+ verifyFormat("f({1, 2}, {{2, 3}, {4, 5}}, c, {d});");
+ verifyFormat("Class::Class : member{1, 2, 3} {}");
+ verifyFormat("new vector<int>{1, 2, 3};");
+ verifyFormat("new int[3]{1, 2, 3};");
+ verifyFormat("new int{1};");
+ verifyFormat("return {arg1, arg2};");
+ verifyFormat("return {arg1, SomeType{parameter}};");
+ verifyFormat("int count = set<int>{f(), g(), h()}.size();");
+ verifyFormat("new T{arg1, arg2};");
+ verifyFormat("f(MyMap[{composite, key}]);");
+ verifyFormat("class Class {\n"
+ " T member = {arg1, arg2};\n"
+ "};");
+ verifyFormat("vector<int> foo = {::SomeGlobalFunction()};");
+ verifyFormat("const struct A a = {.a = 1, .b = 2};");
+ verifyFormat("const struct A a = {[0] = 1, [1] = 2};");
+ verifyFormat("static_assert(std::is_integral<int>{} + 0, \"\");");
+ verifyFormat("int a = std::is_integral<int>{} + 0;");
+
+ verifyFormat("int foo(int i) { return fo1{}(i); }");
+ verifyFormat("int foo(int i) { return fo1{}(i); }");
+ verifyFormat("auto i = decltype(x){};");
+ verifyFormat("std::vector<int> v = {1, 0 /* comment */};");
+ verifyFormat("Node n{1, Node{1000}, //\n"
+ " 2};");
+ verifyFormat("Aaaa aaaaaaa{\n"
+ " {\n"
+ " aaaa,\n"
+ " },\n"
+ "};");
+ verifyFormat("class C : public D {\n"
+ " SomeClass SC{2};\n"
+ "};");
+ verifyFormat("class C : public A {\n"
+ " class D : public B {\n"
+ " void f() { int i{2}; }\n"
+ " };\n"
+ "};");
+ verifyFormat("#define A {a, a},");
+
+ // Avoid breaking between equal sign and opening brace
+ FormatStyle AvoidBreakingFirstArgument = getLLVMStyle();
+ AvoidBreakingFirstArgument.PenaltyBreakBeforeFirstCallParameter = 200;
+ verifyFormat("const std::unordered_map<std::string, int> MyHashTable =\n"
+ " {{\"aaaaaaaaaaaaaaaaaaaaa\", 0},\n"
+ " {\"bbbbbbbbbbbbbbbbbbbbb\", 1},\n"
+ " {\"ccccccccccccccccccccc\", 2}};",
+ AvoidBreakingFirstArgument);
+
+ // Binpacking only if there is no trailing comma
+ verifyFormat("const Aaaaaa aaaaa = {aaaaaaaaaa, bbbbbbbbbb,\n"
+ " cccccccccc, dddddddddd};",
+ getLLVMStyleWithColumns(50));
+ verifyFormat("const Aaaaaa aaaaa = {\n"
+ " aaaaaaaaaaa,\n"
+ " bbbbbbbbbbb,\n"
+ " ccccccccccc,\n"
+ " ddddddddddd,\n"
+ "};",
+ getLLVMStyleWithColumns(50));
+
+ // Cases where distinguising braced lists and blocks is hard.
+ verifyFormat("vector<int> v{12} GUARDED_BY(mutex);");
+ verifyFormat("void f() {\n"
+ " return; // comment\n"
+ "}\n"
+ "SomeType t;");
+ verifyFormat("void f() {\n"
+ " if (a) {\n"
+ " f();\n"
+ " }\n"
+ "}\n"
+ "SomeType t;");
+
+ // In combination with BinPackArguments = false.
+ FormatStyle NoBinPacking = getLLVMStyle();
+ NoBinPacking.BinPackArguments = false;
+ verifyFormat("const Aaaaaa aaaaa = {aaaaa,\n"
+ " bbbbb,\n"
+ " ccccc,\n"
+ " ddddd,\n"
+ " eeeee,\n"
+ " ffffff,\n"
+ " ggggg,\n"
+ " hhhhhh,\n"
+ " iiiiii,\n"
+ " jjjjjj,\n"
+ " kkkkkk};",
+ NoBinPacking);
+ verifyFormat("const Aaaaaa aaaaa = {\n"
+ " aaaaa,\n"
+ " bbbbb,\n"
+ " ccccc,\n"
+ " ddddd,\n"
+ " eeeee,\n"
+ " ffffff,\n"
+ " ggggg,\n"
+ " hhhhhh,\n"
+ " iiiiii,\n"
+ " jjjjjj,\n"
+ " kkkkkk,\n"
+ "};",
+ NoBinPacking);
+ verifyFormat(
+ "const Aaaaaa aaaaa = {\n"
+ " aaaaa, bbbbb, ccccc, ddddd, eeeee, ffffff, ggggg, hhhhhh,\n"
+ " iiiiii, jjjjjj, kkkkkk, aaaaa, bbbbb, ccccc, ddddd, eeeee,\n"
+ " ffffff, ggggg, hhhhhh, iiiiii, jjjjjj, kkkkkk,\n"
+ "};",
+ NoBinPacking);
+
+ NoBinPacking.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak;
+ EXPECT_EQ("static uint8 CddDp83848Reg[] = {\n"
+ " CDDDP83848_BMCR_REGISTER,\n"
+ " CDDDP83848_BMSR_REGISTER,\n"
+ " CDDDP83848_RBR_REGISTER};",
+ format("static uint8 CddDp83848Reg[] = {CDDDP83848_BMCR_REGISTER,\n"
+ " CDDDP83848_BMSR_REGISTER,\n"
+ " CDDDP83848_RBR_REGISTER};",
+ NoBinPacking));
+
+ // FIXME: The alignment of these trailing comments might be bad. Then again,
+ // this might be utterly useless in real code.
+ verifyFormat("Constructor::Constructor()\n"
+ " : some_value{ //\n"
+ " aaaaaaa, //\n"
+ " bbbbbbb} {}");
+
+ // In braced lists, the first comment is always assumed to belong to the
+ // first element. Thus, it can be moved to the next or previous line as
+ // appropriate.
+ EXPECT_EQ("function({// First element:\n"
+ " 1,\n"
+ " // Second element:\n"
+ " 2});",
+ format("function({\n"
+ " // First element:\n"
+ " 1,\n"
+ " // Second element:\n"
+ " 2});"));
+ EXPECT_EQ("std::vector<int> MyNumbers{\n"
+ " // First element:\n"
+ " 1,\n"
+ " // Second element:\n"
+ " 2};",
+ format("std::vector<int> MyNumbers{// First element:\n"
+ " 1,\n"
+ " // Second element:\n"
+ " 2};",
+ getLLVMStyleWithColumns(30)));
+ // A trailing comma should still lead to an enforced line break and no
+ // binpacking.
+ EXPECT_EQ("vector<int> SomeVector = {\n"
+ " // aaa\n"
+ " 1,\n"
+ " 2,\n"
+ "};",
+ format("vector<int> SomeVector = { // aaa\n"
+ " 1, 2, };"));
+
+ FormatStyle ExtraSpaces = getLLVMStyle();
+ ExtraSpaces.Cpp11BracedListStyle = false;
+ ExtraSpaces.ColumnLimit = 75;
+ verifyFormat("vector<int> x{ 1, 2, 3, 4 };", ExtraSpaces);
+ verifyFormat("vector<T> x{ {}, {}, {}, {} };", ExtraSpaces);
+ verifyFormat("f({ 1, 2 });", ExtraSpaces);
+ verifyFormat("auto v = Foo{ 1 };", ExtraSpaces);
+ verifyFormat("f({ 1, 2 }, { { 2, 3 }, { 4, 5 } }, c, { d });", ExtraSpaces);
+ verifyFormat("Class::Class : member{ 1, 2, 3 } {}", ExtraSpaces);
+ verifyFormat("new vector<int>{ 1, 2, 3 };", ExtraSpaces);
+ verifyFormat("new int[3]{ 1, 2, 3 };", ExtraSpaces);
+ verifyFormat("return { arg1, arg2 };", ExtraSpaces);
+ verifyFormat("return { arg1, SomeType{ parameter } };", ExtraSpaces);
+ verifyFormat("int count = set<int>{ f(), g(), h() }.size();", ExtraSpaces);
+ verifyFormat("new T{ arg1, arg2 };", ExtraSpaces);
+ verifyFormat("f(MyMap[{ composite, key }]);", ExtraSpaces);
+ verifyFormat("class Class {\n"
+ " T member = { arg1, arg2 };\n"
+ "};",
+ ExtraSpaces);
+ verifyFormat(
+ "foo = aaaaaaaaaaa ? vector<int>{ aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaa, aaaaa }\n"
+ " : vector<int>{ bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n"
+ " bbbbbbbbbbbbbbbbbbbb, bbbbb };",
+ ExtraSpaces);
+ verifyFormat("DoSomethingWithVector({} /* No data */);", ExtraSpaces);
+ verifyFormat("DoSomethingWithVector({ {} /* No data */ }, { { 1, 2 } });",
+ ExtraSpaces);
+ verifyFormat(
+ "someFunction(OtherParam,\n"
+ " BracedList{ // comment 1 (Forcing interesting break)\n"
+ " param1, param2,\n"
+ " // comment 2\n"
+ " param3, param4 });",
+ ExtraSpaces);
+ verifyFormat(
+ "std::this_thread::sleep_for(\n"
+ " std::chrono::nanoseconds{ std::chrono::seconds{ 1 } } / 5);",
+ ExtraSpaces);
+ verifyFormat("std::vector<MyValues> aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa{\n"
+ " aaaaaaa,\n"
+ " aaaaaaaaaa,\n"
+ " aaaaa,\n"
+ " aaaaaaaaaaaaaaa,\n"
+ " aaa,\n"
+ " aaaaaaaaaa,\n"
+ " a,\n"
+ " aaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaa,\n"
+ " a};");
+ verifyFormat("vector<int> foo = { ::SomeGlobalFunction() };", ExtraSpaces);
+ verifyFormat("const struct A a = { .a = 1, .b = 2 };", ExtraSpaces);
+ verifyFormat("const struct A a = { [0] = 1, [1] = 2 };", ExtraSpaces);
+
+ // Avoid breaking between initializer/equal sign and opening brace
+ ExtraSpaces.PenaltyBreakBeforeFirstCallParameter = 200;
+ verifyFormat("const std::unordered_map<std::string, int> MyHashTable = {\n"
+ " { \"aaaaaaaaaaaaaaaaaaaaa\", 0 },\n"
+ " { \"bbbbbbbbbbbbbbbbbbbbb\", 1 },\n"
+ " { \"ccccccccccccccccccccc\", 2 }\n"
+ "};",
+ ExtraSpaces);
+ verifyFormat("const std::unordered_map<std::string, int> MyHashTable{\n"
+ " { \"aaaaaaaaaaaaaaaaaaaaa\", 0 },\n"
+ " { \"bbbbbbbbbbbbbbbbbbbbb\", 1 },\n"
+ " { \"ccccccccccccccccccccc\", 2 }\n"
+ "};",
+ ExtraSpaces);
+
+ FormatStyle SpaceBeforeBrace = getLLVMStyle();
+ SpaceBeforeBrace.SpaceBeforeCpp11BracedList = true;
+ verifyFormat("vector<int> x {1, 2, 3, 4};", SpaceBeforeBrace);
+ verifyFormat("f({}, {{}, {}}, MyMap[{k, v}]);", SpaceBeforeBrace);
+
+ FormatStyle SpaceBetweenBraces = getLLVMStyle();
+ SpaceBetweenBraces.SpacesInAngles = true;
+ SpaceBetweenBraces.SpacesInParentheses = true;
+ SpaceBetweenBraces.SpacesInSquareBrackets = true;
+ verifyFormat("vector< int > x{ 1, 2, 3, 4 };", SpaceBetweenBraces);
+ verifyFormat("f( {}, { {}, {} }, MyMap[ { k, v } ] );", SpaceBetweenBraces);
+ verifyFormat("vector< int > x{ // comment 1\n"
+ " 1, 2, 3, 4 };",
+ SpaceBetweenBraces);
+ SpaceBetweenBraces.ColumnLimit = 20;
+ EXPECT_EQ("vector< int > x{\n"
+ " 1, 2, 3, 4 };",
+ format("vector<int>x{1,2,3,4};", SpaceBetweenBraces));
+ SpaceBetweenBraces.ColumnLimit = 24;
+ EXPECT_EQ("vector< int > x{ 1, 2,\n"
+ " 3, 4 };",
+ format("vector<int>x{1,2,3,4};", SpaceBetweenBraces));
+ EXPECT_EQ("vector< int > x{\n"
+ " 1,\n"
+ " 2,\n"
+ " 3,\n"
+ " 4,\n"
+ "};",
+ format("vector<int>x{1,2,3,4,};", SpaceBetweenBraces));
+ verifyFormat("vector< int > x{};", SpaceBetweenBraces);
+ SpaceBetweenBraces.SpaceInEmptyParentheses = true;
+ verifyFormat("vector< int > x{ };", SpaceBetweenBraces);
+}
+
+TEST_F(FormatTest, FormatsBracedListsInColumnLayout) {
+ verifyFormat("vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n"
+ " 1, 22, 333, 4444, 55555, 666666, 7777777,\n"
+ " 1, 22, 333, 4444, 55555, 666666, 7777777,\n"
+ " 1, 22, 333, 4444, 55555, 666666, 7777777,\n"
+ " 1, 22, 333, 4444, 55555, 666666, 7777777,\n"
+ " 1, 22, 333, 4444, 55555, 666666, 7777777};");
+ verifyFormat("vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777, //\n"
+ " 1, 22, 333, 4444, 55555, 666666, 7777777,\n"
+ " 1, 22, 333, 4444, 55555, //\n"
+ " 1, 22, 333, 4444, 55555, 666666, 7777777,\n"
+ " 1, 22, 333, 4444, 55555, 666666, 7777777};");
+ verifyFormat(
+ "vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n"
+ " 1, 22, 333, 4444, 55555, 666666, 7777777,\n"
+ " 1, 22, 333, 4444, 55555, 666666, // comment\n"
+ " 7777777, 1, 22, 333, 4444, 55555, 666666,\n"
+ " 7777777, 1, 22, 333, 4444, 55555, 666666,\n"
+ " 7777777, 1, 22, 333, 4444, 55555, 666666,\n"
+ " 7777777};");
+ verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n"
+ " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n"
+ " X86::R8, X86::R9, X86::R10, X86::R11, 0};");
+ verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n"
+ " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n"
+ " // Separating comment.\n"
+ " X86::R8, X86::R9, X86::R10, X86::R11, 0};");
+ verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n"
+ " // Leading comment\n"
+ " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n"
+ " X86::R8, X86::R9, X86::R10, X86::R11, 0};");
+ verifyFormat("vector<int> x = {1, 1, 1, 1,\n"
+ " 1, 1, 1, 1};",
+ getLLVMStyleWithColumns(39));
+ verifyFormat("vector<int> x = {1, 1, 1, 1,\n"
+ " 1, 1, 1, 1};",
+ getLLVMStyleWithColumns(38));
+ verifyFormat("vector<int> aaaaaaaaaaaaaaaaaaaaaa = {\n"
+ " 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};",
+ getLLVMStyleWithColumns(43));
+ verifyFormat(
+ "static unsigned SomeValues[10][3] = {\n"
+ " {1, 4, 0}, {4, 9, 0}, {4, 5, 9}, {8, 5, 4}, {1, 8, 4},\n"
+ " {10, 1, 6}, {11, 0, 9}, {2, 11, 9}, {5, 2, 9}, {11, 2, 7}};");
+ verifyFormat("static auto fields = new vector<string>{\n"
+ " \"aaaaaaaaaaaaa\",\n"
+ " \"aaaaaaaaaaaaa\",\n"
+ " \"aaaaaaaaaaaa\",\n"
+ " \"aaaaaaaaaaaaaa\",\n"
+ " \"aaaaaaaaaaaaaaaaaaaaaaaaa\",\n"
+ " \"aaaaaaaaaaaa\",\n"
+ " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\",\n"
+ "};");
+ verifyFormat("vector<int> x = {1, 2, 3, 4, aaaaaaaaaaaaaaaaa, 6};");
+ verifyFormat("vector<int> x = {1, aaaaaaaaaaaaaaaaaaaaaa,\n"
+ " 2, bbbbbbbbbbbbbbbbbbbbbb,\n"
+ " 3, cccccccccccccccccccccc};",
+ getLLVMStyleWithColumns(60));
+
+ // Trailing commas.
+ verifyFormat("vector<int> x = {\n"
+ " 1, 1, 1, 1, 1, 1, 1, 1,\n"
+ "};",
+ getLLVMStyleWithColumns(39));
+ verifyFormat("vector<int> x = {\n"
+ " 1, 1, 1, 1, 1, 1, 1, 1, //\n"
+ "};",
+ getLLVMStyleWithColumns(39));
+ verifyFormat("vector<int> x = {1, 1, 1, 1,\n"
+ " 1, 1, 1, 1,\n"
+ " /**/ /**/};",
+ getLLVMStyleWithColumns(39));
+
+ // Trailing comment in the first line.
+ verifyFormat("vector<int> iiiiiiiiiiiiiii = { //\n"
+ " 1111111111, 2222222222, 33333333333, 4444444444, //\n"
+ " 111111111, 222222222, 3333333333, 444444444, //\n"
+ " 11111111, 22222222, 333333333, 44444444};");
+ // Trailing comment in the last line.
+ verifyFormat("int aaaaa[] = {\n"
+ " 1, 2, 3, // comment\n"
+ " 4, 5, 6 // comment\n"
+ "};");
+
+ // With nested lists, we should either format one item per line or all nested
+ // lists one on line.
+ // FIXME: For some nested lists, we can do better.
+ verifyFormat("return {{aaaaaaaaaaaaaaaaaaaaa},\n"
+ " {aaaaaaaaaaaaaaaaaaa},\n"
+ " {aaaaaaaaaaaaaaaaaaaaa},\n"
+ " {aaaaaaaaaaaaaaaaa}};",
+ getLLVMStyleWithColumns(60));
+ verifyFormat(
+ "SomeStruct my_struct_array = {\n"
+ " {aaaaaa, aaaaaaaa, aaaaaaaaaa, aaaaaaaaa, aaaaaaaaa, aaaaaaaaaa,\n"
+ " aaaaaaaaaaaaa, aaaaaaa, aaa},\n"
+ " {aaa, aaa},\n"
+ " {aaa, aaa},\n"
+ " {aaaa, aaaa, aaaa, aaaa, aaaa, aaaa, aaaa, aaa},\n"
+ " {aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaaaaaaaa, a, aaaaaaaaaa, aaaaaaaaa, aaa}};");
+
+ // No column layout should be used here.
+ verifyFormat("aaaaaaaaaaaaaaa = {aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa, 0, 0,\n"
+ " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb};");
+
+ verifyNoCrash("a<,");
+
+ // No braced initializer here.
+ verifyFormat("void f() {\n"
+ " struct Dummy {};\n"
+ " f(v);\n"
+ "}");
+
+ // Long lists should be formatted in columns even if they are nested.
+ verifyFormat(
+ "vector<int> x = function({1, 22, 333, 4444, 55555, 666666, 7777777,\n"
+ " 1, 22, 333, 4444, 55555, 666666, 7777777,\n"
+ " 1, 22, 333, 4444, 55555, 666666, 7777777,\n"
+ " 1, 22, 333, 4444, 55555, 666666, 7777777,\n"
+ " 1, 22, 333, 4444, 55555, 666666, 7777777,\n"
+ " 1, 22, 333, 4444, 55555, 666666, 7777777});");
+
+ // Allow "single-column" layout even if that violates the column limit. There
+ // isn't going to be a better way.
+ verifyFormat("std::vector<int> a = {\n"
+ " aaaaaaaa,\n"
+ " aaaaaaaa,\n"
+ " aaaaaaaa,\n"
+ " aaaaaaaa,\n"
+ " aaaaaaaaaa,\n"
+ " aaaaaaaa,\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa};",
+ getLLVMStyleWithColumns(30));
+ verifyFormat("vector<int> aaaa = {\n"
+ " aaaaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaa.aaaaaaa,\n"
+ " aaaaaa.aaaaaaa,\n"
+ " aaaaaa.aaaaaaa,\n"
+ " aaaaaa.aaaaaaa,\n"
+ "};");
+
+ // Don't create hanging lists.
+ verifyFormat("someFunction(Param, {List1, List2,\n"
+ " List3});",
+ getLLVMStyleWithColumns(35));
+ verifyFormat("someFunction(Param, Param,\n"
+ " {List1, List2,\n"
+ " List3});",
+ getLLVMStyleWithColumns(35));
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaa, {},\n"
+ " aaaaaaaaaaaaaaaaaaaaaaa);");
+}
+
+TEST_F(FormatTest, PullTrivialFunctionDefinitionsIntoSingleLine) {
+ FormatStyle DoNotMerge = getLLVMStyle();
+ DoNotMerge.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None;
+
+ verifyFormat("void f() { return 42; }");
+ verifyFormat("void f() {\n"
+ " return 42;\n"
+ "}",
+ DoNotMerge);
+ verifyFormat("void f() {\n"
+ " // Comment\n"
+ "}");
+ verifyFormat("{\n"
+ "#error {\n"
+ " int a;\n"
+ "}");
+ verifyFormat("{\n"
+ " int a;\n"
+ "#error {\n"
+ "}");
+ verifyFormat("void f() {} // comment");
+ verifyFormat("void f() { int a; } // comment");
+ verifyFormat("void f() {\n"
+ "} // comment",
+ DoNotMerge);
+ verifyFormat("void f() {\n"
+ " int a;\n"
+ "} // comment",
+ DoNotMerge);
+ verifyFormat("void f() {\n"
+ "} // comment",
+ getLLVMStyleWithColumns(15));
+
+ verifyFormat("void f() { return 42; }", getLLVMStyleWithColumns(23));
+ verifyFormat("void f() {\n return 42;\n}", getLLVMStyleWithColumns(22));
+
+ verifyFormat("void f() {}", getLLVMStyleWithColumns(11));
+ verifyFormat("void f() {\n}", getLLVMStyleWithColumns(10));
+ verifyFormat("class C {\n"
+ " C()\n"
+ " : iiiiiiii(nullptr),\n"
+ " kkkkkkk(nullptr),\n"
+ " mmmmmmm(nullptr),\n"
+ " nnnnnnn(nullptr) {}\n"
+ "};",
+ getGoogleStyle());
+
+ FormatStyle NoColumnLimit = getLLVMStyle();
+ NoColumnLimit.ColumnLimit = 0;
+ EXPECT_EQ("A() : b(0) {}", format("A():b(0){}", NoColumnLimit));
+ EXPECT_EQ("class C {\n"
+ " A() : b(0) {}\n"
+ "};",
+ format("class C{A():b(0){}};", NoColumnLimit));
+ EXPECT_EQ("A()\n"
+ " : b(0) {\n"
+ "}",
+ format("A()\n:b(0)\n{\n}", NoColumnLimit));
+
+ FormatStyle DoNotMergeNoColumnLimit = NoColumnLimit;
+ DoNotMergeNoColumnLimit.AllowShortFunctionsOnASingleLine =
+ FormatStyle::SFS_None;
+ EXPECT_EQ("A()\n"
+ " : b(0) {\n"
+ "}",
+ format("A():b(0){}", DoNotMergeNoColumnLimit));
+ EXPECT_EQ("A()\n"
+ " : b(0) {\n"
+ "}",
+ format("A()\n:b(0)\n{\n}", DoNotMergeNoColumnLimit));
+
+ verifyFormat("#define A \\\n"
+ " void f() { \\\n"
+ " int i; \\\n"
+ " }",
+ getLLVMStyleWithColumns(20));
+ verifyFormat("#define A \\\n"
+ " void f() { int i; }",
+ getLLVMStyleWithColumns(21));
+ verifyFormat("#define A \\\n"
+ " void f() { \\\n"
+ " int i; \\\n"
+ " } \\\n"
+ " int j;",
+ getLLVMStyleWithColumns(22));
+ verifyFormat("#define A \\\n"
+ " void f() { int i; } \\\n"
+ " int j;",
+ getLLVMStyleWithColumns(23));
+}
+
+TEST_F(FormatTest, PullEmptyFunctionDefinitionsIntoSingleLine) {
+ FormatStyle MergeEmptyOnly = getLLVMStyle();
+ MergeEmptyOnly.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Empty;
+ verifyFormat("class C {\n"
+ " int f() {}\n"
+ "};",
+ MergeEmptyOnly);
+ verifyFormat("class C {\n"
+ " int f() {\n"
+ " return 42;\n"
+ " }\n"
+ "};",
+ MergeEmptyOnly);
+ verifyFormat("int f() {}", MergeEmptyOnly);
+ verifyFormat("int f() {\n"
+ " return 42;\n"
+ "}",
+ MergeEmptyOnly);
+
+ // Also verify behavior when BraceWrapping.AfterFunction = true
+ MergeEmptyOnly.BreakBeforeBraces = FormatStyle::BS_Custom;
+ MergeEmptyOnly.BraceWrapping.AfterFunction = true;
+ verifyFormat("int f() {}", MergeEmptyOnly);
+ verifyFormat("class C {\n"
+ " int f() {}\n"
+ "};",
+ MergeEmptyOnly);
+}
+
+TEST_F(FormatTest, PullInlineFunctionDefinitionsIntoSingleLine) {
+ FormatStyle MergeInlineOnly = getLLVMStyle();
+ MergeInlineOnly.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline;
+ verifyFormat("class C {\n"
+ " int f() { return 42; }\n"
+ "};",
+ MergeInlineOnly);
+ verifyFormat("int f() {\n"
+ " return 42;\n"
+ "}",
+ MergeInlineOnly);
+
+ // SFS_Inline implies SFS_Empty
+ verifyFormat("class C {\n"
+ " int f() {}\n"
+ "};",
+ MergeInlineOnly);
+ verifyFormat("int f() {}", MergeInlineOnly);
+
+ // Also verify behavior when BraceWrapping.AfterFunction = true
+ MergeInlineOnly.BreakBeforeBraces = FormatStyle::BS_Custom;
+ MergeInlineOnly.BraceWrapping.AfterFunction = true;
+ verifyFormat("class C {\n"
+ " int f() { return 42; }\n"
+ "};",
+ MergeInlineOnly);
+ verifyFormat("int f()\n"
+ "{\n"
+ " return 42;\n"
+ "}",
+ MergeInlineOnly);
+
+ // SFS_Inline implies SFS_Empty
+ verifyFormat("int f() {}", MergeInlineOnly);
+ verifyFormat("class C {\n"
+ " int f() {}\n"
+ "};",
+ MergeInlineOnly);
+}
+
+TEST_F(FormatTest, PullInlineOnlyFunctionDefinitionsIntoSingleLine) {
+ FormatStyle MergeInlineOnly = getLLVMStyle();
+ MergeInlineOnly.AllowShortFunctionsOnASingleLine =
+ FormatStyle::SFS_InlineOnly;
+ verifyFormat("class C {\n"
+ " int f() { return 42; }\n"
+ "};",
+ MergeInlineOnly);
+ verifyFormat("int f() {\n"
+ " return 42;\n"
+ "}",
+ MergeInlineOnly);
+
+ // SFS_InlineOnly does not imply SFS_Empty
+ verifyFormat("class C {\n"
+ " int f() {}\n"
+ "};",
+ MergeInlineOnly);
+ verifyFormat("int f() {\n"
+ "}",
+ MergeInlineOnly);
+
+ // Also verify behavior when BraceWrapping.AfterFunction = true
+ MergeInlineOnly.BreakBeforeBraces = FormatStyle::BS_Custom;
+ MergeInlineOnly.BraceWrapping.AfterFunction = true;
+ verifyFormat("class C {\n"
+ " int f() { return 42; }\n"
+ "};",
+ MergeInlineOnly);
+ verifyFormat("int f()\n"
+ "{\n"
+ " return 42;\n"
+ "}",
+ MergeInlineOnly);
+
+ // SFS_InlineOnly does not imply SFS_Empty
+ verifyFormat("int f()\n"
+ "{\n"
+ "}",
+ MergeInlineOnly);
+ verifyFormat("class C {\n"
+ " int f() {}\n"
+ "};",
+ MergeInlineOnly);
+}
+
+TEST_F(FormatTest, SplitEmptyFunction) {
+ FormatStyle Style = getLLVMStyle();
+ Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None;
+ Style.BreakBeforeBraces = FormatStyle::BS_Custom;
+ Style.BraceWrapping.AfterFunction = true;
+ Style.BraceWrapping.SplitEmptyFunction = false;
+ Style.ColumnLimit = 40;
+
+ verifyFormat("int f()\n"
+ "{}",
+ Style);
+ verifyFormat("int f()\n"
+ "{\n"
+ " return 42;\n"
+ "}",
+ Style);
+ verifyFormat("int f()\n"
+ "{\n"
+ " // some comment\n"
+ "}",
+ Style);
+
+ Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Empty;
+ verifyFormat("int f() {}", Style);
+ verifyFormat("int aaaaaaaaaaaaaa(int bbbbbbbbbbbbbb)\n"
+ "{}",
+ Style);
+ verifyFormat("int f()\n"
+ "{\n"
+ " return 0;\n"
+ "}",
+ Style);
+
+ Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline;
+ verifyFormat("class Foo {\n"
+ " int f() {}\n"
+ "};\n",
+ Style);
+ verifyFormat("class Foo {\n"
+ " int f() { return 0; }\n"
+ "};\n",
+ Style);
+ verifyFormat("class Foo {\n"
+ " int aaaaaaaaaaaaaa(int bbbbbbbbbbbbbb)\n"
+ " {}\n"
+ "};\n",
+ Style);
+ verifyFormat("class Foo {\n"
+ " int aaaaaaaaaaaaaa(int bbbbbbbbbbbbbb)\n"
+ " {\n"
+ " return 0;\n"
+ " }\n"
+ "};\n",
+ Style);
+
+ Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All;
+ verifyFormat("int f() {}", Style);
+ verifyFormat("int f() { return 0; }", Style);
+ verifyFormat("int aaaaaaaaaaaaaa(int bbbbbbbbbbbbbb)\n"
+ "{}",
+ Style);
+ verifyFormat("int aaaaaaaaaaaaaa(int bbbbbbbbbbbbbb)\n"
+ "{\n"
+ " return 0;\n"
+ "}",
+ Style);
+}
+TEST_F(FormatTest, KeepShortFunctionAfterPPElse) {
+ FormatStyle Style = getLLVMStyle();
+ Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All;
+ verifyFormat("#ifdef A\n"
+ "int f() {}\n"
+ "#else\n"
+ "int g() {}\n"
+ "#endif",
+ Style);
+}
+
+TEST_F(FormatTest, SplitEmptyClass) {
+ FormatStyle Style = getLLVMStyle();
+ Style.BreakBeforeBraces = FormatStyle::BS_Custom;
+ Style.BraceWrapping.AfterClass = true;
+ Style.BraceWrapping.SplitEmptyRecord = false;
+
+ verifyFormat("class Foo\n"
+ "{};",
+ Style);
+ verifyFormat("/* something */ class Foo\n"
+ "{};",
+ Style);
+ verifyFormat("template <typename X> class Foo\n"
+ "{};",
+ Style);
+ verifyFormat("class Foo\n"
+ "{\n"
+ " Foo();\n"
+ "};",
+ Style);
+ verifyFormat("typedef class Foo\n"
+ "{\n"
+ "} Foo_t;",
+ Style);
+}
+
+TEST_F(FormatTest, SplitEmptyStruct) {
+ FormatStyle Style = getLLVMStyle();
+ Style.BreakBeforeBraces = FormatStyle::BS_Custom;
+ Style.BraceWrapping.AfterStruct = true;
+ Style.BraceWrapping.SplitEmptyRecord = false;
+
+ verifyFormat("struct Foo\n"
+ "{};",
+ Style);
+ verifyFormat("/* something */ struct Foo\n"
+ "{};",
+ Style);
+ verifyFormat("template <typename X> struct Foo\n"
+ "{};",
+ Style);
+ verifyFormat("struct Foo\n"
+ "{\n"
+ " Foo();\n"
+ "};",
+ Style);
+ verifyFormat("typedef struct Foo\n"
+ "{\n"
+ "} Foo_t;",
+ Style);
+ // typedef struct Bar {} Bar_t;
+}
+
+TEST_F(FormatTest, SplitEmptyUnion) {
+ FormatStyle Style = getLLVMStyle();
+ Style.BreakBeforeBraces = FormatStyle::BS_Custom;
+ Style.BraceWrapping.AfterUnion = true;
+ Style.BraceWrapping.SplitEmptyRecord = false;
+
+ verifyFormat("union Foo\n"
+ "{};",
+ Style);
+ verifyFormat("/* something */ union Foo\n"
+ "{};",
+ Style);
+ verifyFormat("union Foo\n"
+ "{\n"
+ " A,\n"
+ "};",
+ Style);
+ verifyFormat("typedef union Foo\n"
+ "{\n"
+ "} Foo_t;",
+ Style);
+}
+
+TEST_F(FormatTest, SplitEmptyNamespace) {
+ FormatStyle Style = getLLVMStyle();
+ Style.BreakBeforeBraces = FormatStyle::BS_Custom;
+ Style.BraceWrapping.AfterNamespace = true;
+ Style.BraceWrapping.SplitEmptyNamespace = false;
+
+ verifyFormat("namespace Foo\n"
+ "{};",
+ Style);
+ verifyFormat("/* something */ namespace Foo\n"
+ "{};",
+ Style);
+ verifyFormat("inline namespace Foo\n"
+ "{};",
+ Style);
+ verifyFormat("/* something */ inline namespace Foo\n"
+ "{};",
+ Style);
+ verifyFormat("export namespace Foo\n"
+ "{};",
+ Style);
+ verifyFormat("namespace Foo\n"
+ "{\n"
+ "void Bar();\n"
+ "};",
+ Style);
+}
+
+TEST_F(FormatTest, NeverMergeShortRecords) {
+ FormatStyle Style = getLLVMStyle();
+
+ verifyFormat("class Foo {\n"
+ " Foo();\n"
+ "};",
+ Style);
+ verifyFormat("typedef class Foo {\n"
+ " Foo();\n"
+ "} Foo_t;",
+ Style);
+ verifyFormat("struct Foo {\n"
+ " Foo();\n"
+ "};",
+ Style);
+ verifyFormat("typedef struct Foo {\n"
+ " Foo();\n"
+ "} Foo_t;",
+ Style);
+ verifyFormat("union Foo {\n"
+ " A,\n"
+ "};",
+ Style);
+ verifyFormat("typedef union Foo {\n"
+ " A,\n"
+ "} Foo_t;",
+ Style);
+ verifyFormat("namespace Foo {\n"
+ "void Bar();\n"
+ "};",
+ Style);
+
+ Style.BreakBeforeBraces = FormatStyle::BS_Custom;
+ Style.BraceWrapping.AfterClass = true;
+ Style.BraceWrapping.AfterStruct = true;
+ Style.BraceWrapping.AfterUnion = true;
+ Style.BraceWrapping.AfterNamespace = true;
+ verifyFormat("class Foo\n"
+ "{\n"
+ " Foo();\n"
+ "};",
+ Style);
+ verifyFormat("typedef class Foo\n"
+ "{\n"
+ " Foo();\n"
+ "} Foo_t;",
+ Style);
+ verifyFormat("struct Foo\n"
+ "{\n"
+ " Foo();\n"
+ "};",
+ Style);
+ verifyFormat("typedef struct Foo\n"
+ "{\n"
+ " Foo();\n"
+ "} Foo_t;",
+ Style);
+ verifyFormat("union Foo\n"
+ "{\n"
+ " A,\n"
+ "};",
+ Style);
+ verifyFormat("typedef union Foo\n"
+ "{\n"
+ " A,\n"
+ "} Foo_t;",
+ Style);
+ verifyFormat("namespace Foo\n"
+ "{\n"
+ "void Bar();\n"
+ "};",
+ Style);
+}
+
+TEST_F(FormatTest, UnderstandContextOfRecordTypeKeywords) {
+ // Elaborate type variable declarations.
+ verifyFormat("struct foo a = {bar};\nint n;");
+ verifyFormat("class foo a = {bar};\nint n;");
+ verifyFormat("union foo a = {bar};\nint n;");
+
+ // Elaborate types inside function definitions.
+ verifyFormat("struct foo f() {}\nint n;");
+ verifyFormat("class foo f() {}\nint n;");
+ verifyFormat("union foo f() {}\nint n;");
+
+ // Templates.
+ verifyFormat("template <class X> void f() {}\nint n;");
+ verifyFormat("template <struct X> void f() {}\nint n;");
+ verifyFormat("template <union X> void f() {}\nint n;");
+
+ // Actual definitions...
+ verifyFormat("struct {\n} n;");
+ verifyFormat(
+ "template <template <class T, class Y>, class Z> class X {\n} n;");
+ verifyFormat("union Z {\n int n;\n} x;");
+ verifyFormat("class MACRO Z {\n} n;");
+ verifyFormat("class MACRO(X) Z {\n} n;");
+ verifyFormat("class __attribute__(X) Z {\n} n;");
+ verifyFormat("class __declspec(X) Z {\n} n;");
+ verifyFormat("class A##B##C {\n} n;");
+ verifyFormat("class alignas(16) Z {\n} n;");
+ verifyFormat("class MACRO(X) alignas(16) Z {\n} n;");
+ verifyFormat("class MACROA MACRO(X) Z {\n} n;");
+
+ // Redefinition from nested context:
+ verifyFormat("class A::B::C {\n} n;");
+
+ // Template definitions.
+ verifyFormat(
+ "template <typename F>\n"
+ "Matcher(const Matcher<F> &Other,\n"
+ " typename enable_if_c<is_base_of<F, T>::value &&\n"
+ " !is_same<F, T>::value>::type * = 0)\n"
+ " : Implementation(new ImplicitCastMatcher<F>(Other)) {}");
+
+ // FIXME: This is still incorrectly handled at the formatter side.
+ verifyFormat("template <> struct X < 15, i<3 && 42 < 50 && 33 < 28> {};");
+ verifyFormat("int i = SomeFunction(a<b, a> b);");
+
+ // FIXME:
+ // This now gets parsed incorrectly as class definition.
+ // verifyFormat("class A<int> f() {\n}\nint n;");
+
+ // Elaborate types where incorrectly parsing the structural element would
+ // break the indent.
+ verifyFormat("if (true)\n"
+ " class X x;\n"
+ "else\n"
+ " f();\n");
+
+ // This is simply incomplete. Formatting is not important, but must not crash.
+ verifyFormat("class A:");
+}
+
+TEST_F(FormatTest, DoNotInterfereWithErrorAndWarning) {
+ EXPECT_EQ("#error Leave all white!!!!! space* alone!\n",
+ format("#error Leave all white!!!!! space* alone!\n"));
+ EXPECT_EQ(
+ "#warning Leave all white!!!!! space* alone!\n",
+ format("#warning Leave all white!!!!! space* alone!\n"));
+ EXPECT_EQ("#error 1", format(" # error 1"));
+ EXPECT_EQ("#warning 1", format(" # warning 1"));
+}
+
+TEST_F(FormatTest, FormatHashIfExpressions) {
+ verifyFormat("#if AAAA && BBBB");
+ verifyFormat("#if (AAAA && BBBB)");
+ verifyFormat("#elif (AAAA && BBBB)");
+ // FIXME: Come up with a better indentation for #elif.
+ verifyFormat(
+ "#if !defined(AAAAAAA) && (defined CCCCCC || defined DDDDDD) && \\\n"
+ " defined(BBBBBBBB)\n"
+ "#elif !defined(AAAAAA) && (defined CCCCC || defined DDDDDD) && \\\n"
+ " defined(BBBBBBBB)\n"
+ "#endif",
+ getLLVMStyleWithColumns(65));
+}
+
+TEST_F(FormatTest, MergeHandlingInTheFaceOfPreprocessorDirectives) {
+ FormatStyle AllowsMergedIf = getGoogleStyle();
+ AllowsMergedIf.AllowShortIfStatementsOnASingleLine =
+ FormatStyle::SIS_WithoutElse;
+ verifyFormat("void f() { f(); }\n#error E", AllowsMergedIf);
+ verifyFormat("if (true) return 42;\n#error E", AllowsMergedIf);
+ verifyFormat("if (true)\n#error E\n return 42;", AllowsMergedIf);
+ EXPECT_EQ("if (true) return 42;",
+ format("if (true)\nreturn 42;", AllowsMergedIf));
+ FormatStyle ShortMergedIf = AllowsMergedIf;
+ ShortMergedIf.ColumnLimit = 25;
+ verifyFormat("#define A \\\n"
+ " if (true) return 42;",
+ ShortMergedIf);
+ verifyFormat("#define A \\\n"
+ " f(); \\\n"
+ " if (true)\n"
+ "#define B",
+ ShortMergedIf);
+ verifyFormat("#define A \\\n"
+ " f(); \\\n"
+ " if (true)\n"
+ "g();",
+ ShortMergedIf);
+ verifyFormat("{\n"
+ "#ifdef A\n"
+ " // Comment\n"
+ " if (true) continue;\n"
+ "#endif\n"
+ " // Comment\n"
+ " if (true) continue;\n"
+ "}",
+ ShortMergedIf);
+ ShortMergedIf.ColumnLimit = 33;
+ verifyFormat("#define A \\\n"
+ " if constexpr (true) return 42;",
+ ShortMergedIf);
+ verifyFormat("#define A \\\n"
+ " if CONSTEXPR (true) return 42;",
+ ShortMergedIf);
+ ShortMergedIf.ColumnLimit = 29;
+ verifyFormat("#define A \\\n"
+ " if (aaaaaaaaaa) return 1; \\\n"
+ " return 2;",
+ ShortMergedIf);
+ ShortMergedIf.ColumnLimit = 28;
+ verifyFormat("#define A \\\n"
+ " if (aaaaaaaaaa) \\\n"
+ " return 1; \\\n"
+ " return 2;",
+ ShortMergedIf);
+ verifyFormat("#define A \\\n"
+ " if constexpr (aaaaaaa) \\\n"
+ " return 1; \\\n"
+ " return 2;",
+ ShortMergedIf);
+ verifyFormat("#define A \\\n"
+ " if CONSTEXPR (aaaaaaa) \\\n"
+ " return 1; \\\n"
+ " return 2;",
+ ShortMergedIf);
+}
+
+TEST_F(FormatTest, FormatStarDependingOnContext) {
+ verifyFormat("void f(int *a);");
+ verifyFormat("void f() { f(fint * b); }");
+ verifyFormat("class A {\n void f(int *a);\n};");
+ verifyFormat("class A {\n int *a;\n};");
+ verifyFormat("namespace a {\n"
+ "namespace b {\n"
+ "class A {\n"
+ " void f() {}\n"
+ " int *a;\n"
+ "};\n"
+ "} // namespace b\n"
+ "} // namespace a");
+}
+
+TEST_F(FormatTest, SpecialTokensAtEndOfLine) {
+ verifyFormat("while");
+ verifyFormat("operator");
+}
+
+TEST_F(FormatTest, SkipsDeeplyNestedLines) {
+ // This code would be painfully slow to format if we didn't skip it.
+ std::string Code("A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(\n" // 20x
+ "A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(\n"
+ "A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(\n"
+ "A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(\n"
+ "A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(A(\n"
+ "A(1, 1)\n"
+ ", 1), 1), 1), 1), 1), 1), 1), 1), 1), 1)\n" // 10x
+ ", 1), 1), 1), 1), 1), 1), 1), 1), 1), 1)\n"
+ ", 1), 1), 1), 1), 1), 1), 1), 1), 1), 1)\n"
+ ", 1), 1), 1), 1), 1), 1), 1), 1), 1), 1)\n"
+ ", 1), 1), 1), 1), 1), 1), 1), 1), 1), 1)\n"
+ ", 1), 1), 1), 1), 1), 1), 1), 1), 1), 1)\n"
+ ", 1), 1), 1), 1), 1), 1), 1), 1), 1), 1)\n"
+ ", 1), 1), 1), 1), 1), 1), 1), 1), 1), 1)\n"
+ ", 1), 1), 1), 1), 1), 1), 1), 1), 1), 1)\n"
+ ", 1), 1), 1), 1), 1), 1), 1), 1), 1), 1);\n");
+ // Deeply nested part is untouched, rest is formatted.
+ EXPECT_EQ(std::string("int i;\n") + Code + "int j;\n",
+ format(std::string("int i;\n") + Code + "int j;\n",
+ getLLVMStyle(), SC_ExpectIncomplete));
+}
+
+//===----------------------------------------------------------------------===//
+// Objective-C tests.
+//===----------------------------------------------------------------------===//
+
+TEST_F(FormatTest, FormatForObjectiveCMethodDecls) {
+ verifyFormat("- (void)sendAction:(SEL)aSelector to:(BOOL)anObject;");
+ EXPECT_EQ("- (NSUInteger)indexOfObject:(id)anObject;",
+ format("-(NSUInteger)indexOfObject:(id)anObject;"));
+ EXPECT_EQ("- (NSInteger)Mthod1;", format("-(NSInteger)Mthod1;"));
+ EXPECT_EQ("+ (id)Mthod2;", format("+(id)Mthod2;"));
+ EXPECT_EQ("- (NSInteger)Method3:(id)anObject;",
+ format("-(NSInteger)Method3:(id)anObject;"));
+ EXPECT_EQ("- (NSInteger)Method4:(id)anObject;",
+ format("-(NSInteger)Method4:(id)anObject;"));
+ EXPECT_EQ("- (NSInteger)Method5:(id)anObject:(id)AnotherObject;",
+ format("-(NSInteger)Method5:(id)anObject:(id)AnotherObject;"));
+ EXPECT_EQ("- (id)Method6:(id)A:(id)B:(id)C:(id)D;",
+ format("- (id)Method6:(id)A:(id)B:(id)C:(id)D;"));
+ EXPECT_EQ("- (void)sendAction:(SEL)aSelector to:(id)anObject "
+ "forAllCells:(BOOL)flag;",
+ format("- (void)sendAction:(SEL)aSelector to:(id)anObject "
+ "forAllCells:(BOOL)flag;"));
+
+ // Very long objectiveC method declaration.
+ verifyFormat("- (void)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa:\n"
+ " (SoooooooooooooooooooooomeType *)bbbbbbbbbb;");
+ verifyFormat("- (NSUInteger)indexOfObject:(id)anObject\n"
+ " inRange:(NSRange)range\n"
+ " outRange:(NSRange)out_range\n"
+ " outRange1:(NSRange)out_range1\n"
+ " outRange2:(NSRange)out_range2\n"
+ " outRange3:(NSRange)out_range3\n"
+ " outRange4:(NSRange)out_range4\n"
+ " outRange5:(NSRange)out_range5\n"
+ " outRange6:(NSRange)out_range6\n"
+ " outRange7:(NSRange)out_range7\n"
+ " outRange8:(NSRange)out_range8\n"
+ " outRange9:(NSRange)out_range9;");
+
+ // When the function name has to be wrapped.
+ FormatStyle Style = getLLVMStyle();
+ // ObjC ignores IndentWrappedFunctionNames when wrapping methods
+ // and always indents instead.
+ Style.IndentWrappedFunctionNames = false;
+ verifyFormat("- (SomeLooooooooooooooooooooongType *)\n"
+ " veryLooooooooooongName:(NSString)aaaaaaaaaaaaaa\n"
+ " anotherName:(NSString)bbbbbbbbbbbbbb {\n"
+ "}",
+ Style);
+ Style.IndentWrappedFunctionNames = true;
+ verifyFormat("- (SomeLooooooooooooooooooooongType *)\n"
+ " veryLooooooooooongName:(NSString)cccccccccccccc\n"
+ " anotherName:(NSString)dddddddddddddd {\n"
+ "}",
+ Style);
+
+ verifyFormat("- (int)sum:(vector<int>)numbers;");
+ verifyGoogleFormat("- (void)setDelegate:(id<Protocol>)delegate;");
+ // FIXME: In LLVM style, there should be a space in front of a '<' for ObjC
+ // protocol lists (but not for template classes):
+ // verifyFormat("- (void)setDelegate:(id <Protocol>)delegate;");
+
+ verifyFormat("- (int (*)())foo:(int (*)())f;");
+ verifyGoogleFormat("- (int (*)())foo:(int (*)())foo;");
+
+ // If there's no return type (very rare in practice!), LLVM and Google style
+ // agree.
+ verifyFormat("- foo;");
+ verifyFormat("- foo:(int)f;");
+ verifyGoogleFormat("- foo:(int)foo;");
+}
+
+TEST_F(FormatTest, BreaksStringLiterals) {
+ EXPECT_EQ("\"some text \"\n"
+ "\"other\";",
+ format("\"some text other\";", getLLVMStyleWithColumns(12)));
+ EXPECT_EQ("\"some text \"\n"
+ "\"other\";",
+ format("\\\n\"some text other\";", getLLVMStyleWithColumns(12)));
+ EXPECT_EQ(
+ "#define A \\\n"
+ " \"some \" \\\n"
+ " \"text \" \\\n"
+ " \"other\";",
+ format("#define A \"some text other\";", getLLVMStyleWithColumns(12)));
+ EXPECT_EQ(
+ "#define A \\\n"
+ " \"so \" \\\n"
+ " \"text \" \\\n"
+ " \"other\";",
+ format("#define A \"so text other\";", getLLVMStyleWithColumns(12)));
+
+ EXPECT_EQ("\"some text\"",
+ format("\"some text\"", getLLVMStyleWithColumns(1)));
+ EXPECT_EQ("\"some text\"",
+ format("\"some text\"", getLLVMStyleWithColumns(11)));
+ EXPECT_EQ("\"some \"\n"
+ "\"text\"",
+ format("\"some text\"", getLLVMStyleWithColumns(10)));
+ EXPECT_EQ("\"some \"\n"
+ "\"text\"",
+ format("\"some text\"", getLLVMStyleWithColumns(7)));
+ EXPECT_EQ("\"some\"\n"
+ "\" tex\"\n"
+ "\"t\"",
+ format("\"some text\"", getLLVMStyleWithColumns(6)));
+ EXPECT_EQ("\"some\"\n"
+ "\" tex\"\n"
+ "\" and\"",
+ format("\"some tex and\"", getLLVMStyleWithColumns(6)));
+ EXPECT_EQ("\"some\"\n"
+ "\"/tex\"\n"
+ "\"/and\"",
+ format("\"some/tex/and\"", getLLVMStyleWithColumns(6)));
+
+ EXPECT_EQ("variable =\n"
+ " \"long string \"\n"
+ " \"literal\";",
+ format("variable = \"long string literal\";",
+ getLLVMStyleWithColumns(20)));
+
+ EXPECT_EQ("variable = f(\n"
+ " \"long string \"\n"
+ " \"literal\",\n"
+ " short,\n"
+ " loooooooooooooooooooong);",
+ format("variable = f(\"long string literal\", short, "
+ "loooooooooooooooooooong);",
+ getLLVMStyleWithColumns(20)));
+
+ EXPECT_EQ(
+ "f(g(\"long string \"\n"
+ " \"literal\"),\n"
+ " b);",
+ format("f(g(\"long string literal\"), b);", getLLVMStyleWithColumns(20)));
+ EXPECT_EQ("f(g(\"long string \"\n"
+ " \"literal\",\n"
+ " a),\n"
+ " b);",
+ format("f(g(\"long string literal\", a), b);",
+ getLLVMStyleWithColumns(20)));
+ EXPECT_EQ(
+ "f(\"one two\".split(\n"
+ " variable));",
+ format("f(\"one two\".split(variable));", getLLVMStyleWithColumns(20)));
+ EXPECT_EQ("f(\"one two three four five six \"\n"
+ " \"seven\".split(\n"
+ " really_looooong_variable));",
+ format("f(\"one two three four five six seven\"."
+ "split(really_looooong_variable));",
+ getLLVMStyleWithColumns(33)));
+
+ EXPECT_EQ("f(\"some \"\n"
+ " \"text\",\n"
+ " other);",
+ format("f(\"some text\", other);", getLLVMStyleWithColumns(10)));
+
+ // Only break as a last resort.
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaa(\n"
+ " aaaaaaaaaaaaaaaaaaaa,\n"
+ " aaaaaa(\"aaa aaaaa aaa aaa aaaaa aaa aaaaa aaa aaa aaaaaa\"));");
+
+ EXPECT_EQ("\"splitmea\"\n"
+ "\"trandomp\"\n"
+ "\"oint\"",
+ format("\"splitmeatrandompoint\"", getLLVMStyleWithColumns(10)));
+
+ EXPECT_EQ("\"split/\"\n"
+ "\"pathat/\"\n"
+ "\"slashes\"",
+ format("\"split/pathat/slashes\"", getLLVMStyleWithColumns(10)));
+
+ EXPECT_EQ("\"split/\"\n"
+ "\"pathat/\"\n"
+ "\"slashes\"",
+ format("\"split/pathat/slashes\"", getLLVMStyleWithColumns(10)));
+ EXPECT_EQ("\"split at \"\n"
+ "\"spaces/at/\"\n"
+ "\"slashes.at.any$\"\n"
+ "\"non-alphanumeric%\"\n"
+ "\"1111111111characte\"\n"
+ "\"rs\"",
+ format("\"split at "
+ "spaces/at/"
+ "slashes.at."
+ "any$non-"
+ "alphanumeric%"
+ "1111111111characte"
+ "rs\"",
+ getLLVMStyleWithColumns(20)));
+
+ // Verify that splitting the strings understands
+ // Style::AlwaysBreakBeforeMultilineStrings.
+ EXPECT_EQ("aaaaaaaaaaaa(\n"
+ " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa \"\n"
+ " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa\");",
+ format("aaaaaaaaaaaa(\"aaaaaaaaaaaaaaaaaaaaaaaaaa "
+ "aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa "
+ "aaaaaaaaaaaaaaaaaaaaaa\");",
+ getGoogleStyle()));
+ EXPECT_EQ("return \"aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa \"\n"
+ " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa\";",
+ format("return \"aaaaaaaaaaaaaaaaaaaaaa "
+ "aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa "
+ "aaaaaaaaaaaaaaaaaaaaaa\";",
+ getGoogleStyle()));
+ EXPECT_EQ("llvm::outs() << \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n"
+ " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";",
+ format("llvm::outs() << "
+ "\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaa\";"));
+ EXPECT_EQ("ffff(\n"
+ " {\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n"
+ " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"});",
+ format("ffff({\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa "
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"});",
+ getGoogleStyle()));
+
+ FormatStyle Style = getLLVMStyleWithColumns(12);
+ Style.BreakStringLiterals = false;
+ EXPECT_EQ("\"some text other\";", format("\"some text other\";", Style));
+
+ FormatStyle AlignLeft = getLLVMStyleWithColumns(12);
+ AlignLeft.AlignEscapedNewlines = FormatStyle::ENAS_Left;
+ EXPECT_EQ("#define A \\\n"
+ " \"some \" \\\n"
+ " \"text \" \\\n"
+ " \"other\";",
+ format("#define A \"some text other\";", AlignLeft));
+}
+
+TEST_F(FormatTest, BreaksStringLiteralsAtColumnLimit) {
+ EXPECT_EQ("C a = \"some more \"\n"
+ " \"text\";",
+ format("C a = \"some more text\";", getLLVMStyleWithColumns(18)));
+}
+
+TEST_F(FormatTest, FullyRemoveEmptyLines) {
+ FormatStyle NoEmptyLines = getLLVMStyleWithColumns(80);
+ NoEmptyLines.MaxEmptyLinesToKeep = 0;
+ EXPECT_EQ("int i = a(b());",
+ format("int i=a(\n\n b(\n\n\n )\n\n);", NoEmptyLines));
+}
+
+TEST_F(FormatTest, BreaksStringLiteralsWithTabs) {
+ EXPECT_EQ(
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "(\n"
+ " \"x\t\");",
+ format("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaa("
+ "\"x\t\");"));
+}
+
+TEST_F(FormatTest, BreaksWideAndNSStringLiterals) {
+ EXPECT_EQ(
+ "u8\"utf8 string \"\n"
+ "u8\"literal\";",
+ format("u8\"utf8 string literal\";", getGoogleStyleWithColumns(16)));
+ EXPECT_EQ(
+ "u\"utf16 string \"\n"
+ "u\"literal\";",
+ format("u\"utf16 string literal\";", getGoogleStyleWithColumns(16)));
+ EXPECT_EQ(
+ "U\"utf32 string \"\n"
+ "U\"literal\";",
+ format("U\"utf32 string literal\";", getGoogleStyleWithColumns(16)));
+ EXPECT_EQ("L\"wide string \"\n"
+ "L\"literal\";",
+ format("L\"wide string literal\";", getGoogleStyleWithColumns(16)));
+ EXPECT_EQ("@\"NSString \"\n"
+ "@\"literal\";",
+ format("@\"NSString literal\";", getGoogleStyleWithColumns(19)));
+ verifyFormat(R"(NSString *s = @"那那那那";)", getLLVMStyleWithColumns(26));
+
+ // This input makes clang-format try to split the incomplete unicode escape
+ // sequence, which used to lead to a crasher.
+ verifyNoCrash(
+ "aaaaaaaaaaaaaaaaaaaa = L\"\\udff\"'; // aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
+ getLLVMStyleWithColumns(60));
+}
+
+TEST_F(FormatTest, DoesNotBreakRawStringLiterals) {
+ FormatStyle Style = getGoogleStyleWithColumns(15);
+ EXPECT_EQ("R\"x(raw literal)x\";", format("R\"x(raw literal)x\";", Style));
+ EXPECT_EQ("uR\"x(raw literal)x\";", format("uR\"x(raw literal)x\";", Style));
+ EXPECT_EQ("LR\"x(raw literal)x\";", format("LR\"x(raw literal)x\";", Style));
+ EXPECT_EQ("UR\"x(raw literal)x\";", format("UR\"x(raw literal)x\";", Style));
+ EXPECT_EQ("u8R\"x(raw literal)x\";",
+ format("u8R\"x(raw literal)x\";", Style));
+}
+
+TEST_F(FormatTest, BreaksStringLiteralsWithin_TMacro) {
+ FormatStyle Style = getLLVMStyleWithColumns(20);
+ EXPECT_EQ(
+ "_T(\"aaaaaaaaaaaaaa\")\n"
+ "_T(\"aaaaaaaaaaaaaa\")\n"
+ "_T(\"aaaaaaaaaaaa\")",
+ format(" _T(\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\")", Style));
+ EXPECT_EQ("f(x,\n"
+ " _T(\"aaaaaaaaaaaa\")\n"
+ " _T(\"aaa\"),\n"
+ " z);",
+ format("f(x, _T(\"aaaaaaaaaaaaaaa\"), z);", Style));
+
+ // FIXME: Handle embedded spaces in one iteration.
+ // EXPECT_EQ("_T(\"aaaaaaaaaaaaa\")\n"
+ // "_T(\"aaaaaaaaaaaaa\")\n"
+ // "_T(\"aaaaaaaaaaaaa\")\n"
+ // "_T(\"a\")",
+ // format(" _T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )",
+ // getLLVMStyleWithColumns(20)));
+ EXPECT_EQ(
+ "_T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )",
+ format(" _T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", Style));
+ EXPECT_EQ("f(\n"
+ "#if !TEST\n"
+ " _T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\")\n"
+ "#endif\n"
+ ");",
+ format("f(\n"
+ "#if !TEST\n"
+ "_T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\")\n"
+ "#endif\n"
+ ");"));
+ EXPECT_EQ("f(\n"
+ "\n"
+ " _T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\"));",
+ format("f(\n"
+ "\n"
+ "_T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\"));"));
+}
+
+TEST_F(FormatTest, BreaksStringLiteralOperands) {
+ // In a function call with two operands, the second can be broken with no line
+ // break before it.
+ EXPECT_EQ(
+ "func(a, \"long long \"\n"
+ " \"long long\");",
+ format("func(a, \"long long long long\");", getLLVMStyleWithColumns(24)));
+ // In a function call with three operands, the second must be broken with a
+ // line break before it.
+ EXPECT_EQ("func(a,\n"
+ " \"long long long \"\n"
+ " \"long\",\n"
+ " c);",
+ format("func(a, \"long long long long\", c);",
+ getLLVMStyleWithColumns(24)));
+ // In a function call with three operands, the third must be broken with a
+ // line break before it.
+ EXPECT_EQ("func(a, b,\n"
+ " \"long long long \"\n"
+ " \"long\");",
+ format("func(a, b, \"long long long long\");",
+ getLLVMStyleWithColumns(24)));
+ // In a function call with three operands, both the second and the third must
+ // be broken with a line break before them.
+ EXPECT_EQ("func(a,\n"
+ " \"long long long \"\n"
+ " \"long\",\n"
+ " \"long long long \"\n"
+ " \"long\");",
+ format("func(a, \"long long long long\", \"long long long long\");",
+ getLLVMStyleWithColumns(24)));
+ // In a chain of << with two operands, the second can be broken with no line
+ // break before it.
+ EXPECT_EQ("a << \"line line \"\n"
+ " \"line\";",
+ format("a << \"line line line\";", getLLVMStyleWithColumns(20)));
+ // In a chain of << with three operands, the second can be broken with no line
+ // break before it.
+ EXPECT_EQ(
+ "abcde << \"line \"\n"
+ " \"line line\"\n"
+ " << c;",
+ format("abcde << \"line line line\" << c;", getLLVMStyleWithColumns(20)));
+ // In a chain of << with three operands, the third must be broken with a line
+ // break before it.
+ EXPECT_EQ(
+ "a << b\n"
+ " << \"line line \"\n"
+ " \"line\";",
+ format("a << b << \"line line line\";", getLLVMStyleWithColumns(20)));
+ // In a chain of << with three operands, the second can be broken with no line
+ // break before it and the third must be broken with a line break before it.
+ EXPECT_EQ("abcd << \"line line \"\n"
+ " \"line\"\n"
+ " << \"line line \"\n"
+ " \"line\";",
+ format("abcd << \"line line line\" << \"line line line\";",
+ getLLVMStyleWithColumns(20)));
+ // In a chain of binary operators with two operands, the second can be broken
+ // with no line break before it.
+ EXPECT_EQ(
+ "abcd + \"line line \"\n"
+ " \"line line\";",
+ format("abcd + \"line line line line\";", getLLVMStyleWithColumns(20)));
+ // In a chain of binary operators with three operands, the second must be
+ // broken with a line break before it.
+ EXPECT_EQ("abcd +\n"
+ " \"line line \"\n"
+ " \"line line\" +\n"
+ " e;",
+ format("abcd + \"line line line line\" + e;",
+ getLLVMStyleWithColumns(20)));
+ // In a function call with two operands, with AlignAfterOpenBracket enabled,
+ // the first must be broken with a line break before it.
+ FormatStyle Style = getLLVMStyleWithColumns(25);
+ Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak;
+ EXPECT_EQ("someFunction(\n"
+ " \"long long long \"\n"
+ " \"long\",\n"
+ " a);",
+ format("someFunction(\"long long long long\", a);", Style));
+}
+
+TEST_F(FormatTest, DontSplitStringLiteralsWithEscapedNewlines) {
+ EXPECT_EQ(
+ "aaaaaaaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";",
+ format("aaaaaaaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";"));
+}
+
+TEST_F(FormatTest, CountsCharactersInMultilineRawStringLiterals) {
+ EXPECT_EQ("f(g(R\"x(raw literal)x\", a), b);",
+ format("f(g(R\"x(raw literal)x\", a), b);", getGoogleStyle()));
+ EXPECT_EQ("fffffffffff(g(R\"x(\n"
+ "multiline raw string literal xxxxxxxxxxxxxx\n"
+ ")x\",\n"
+ " a),\n"
+ " b);",
+ format("fffffffffff(g(R\"x(\n"
+ "multiline raw string literal xxxxxxxxxxxxxx\n"
+ ")x\", a), b);",
+ getGoogleStyleWithColumns(20)));
+ EXPECT_EQ("fffffffffff(\n"
+ " g(R\"x(qqq\n"
+ "multiline raw string literal xxxxxxxxxxxxxx\n"
+ ")x\",\n"
+ " a),\n"
+ " b);",
+ format("fffffffffff(g(R\"x(qqq\n"
+ "multiline raw string literal xxxxxxxxxxxxxx\n"
+ ")x\", a), b);",
+ getGoogleStyleWithColumns(20)));
+
+ EXPECT_EQ("fffffffffff(R\"x(\n"
+ "multiline raw string literal xxxxxxxxxxxxxx\n"
+ ")x\");",
+ format("fffffffffff(R\"x(\n"
+ "multiline raw string literal xxxxxxxxxxxxxx\n"
+ ")x\");",
+ getGoogleStyleWithColumns(20)));
+ EXPECT_EQ("fffffffffff(R\"x(\n"
+ "multiline raw string literal xxxxxxxxxxxxxx\n"
+ ")x\" + bbbbbb);",
+ format("fffffffffff(R\"x(\n"
+ "multiline raw string literal xxxxxxxxxxxxxx\n"
+ ")x\" + bbbbbb);",
+ getGoogleStyleWithColumns(20)));
+ EXPECT_EQ("fffffffffff(\n"
+ " R\"x(\n"
+ "multiline raw string literal xxxxxxxxxxxxxx\n"
+ ")x\" +\n"
+ " bbbbbb);",
+ format("fffffffffff(\n"
+ " R\"x(\n"
+ "multiline raw string literal xxxxxxxxxxxxxx\n"
+ ")x\" + bbbbbb);",
+ getGoogleStyleWithColumns(20)));
+ EXPECT_EQ("fffffffffff(R\"(single line raw string)\" + bbbbbb);",
+ format("fffffffffff(\n"
+ " R\"(single line raw string)\" + bbbbbb);"));
+}
+
+TEST_F(FormatTest, SkipsUnknownStringLiterals) {
+ verifyFormat("string a = \"unterminated;");
+ EXPECT_EQ("function(\"unterminated,\n"
+ " OtherParameter);",
+ format("function( \"unterminated,\n"
+ " OtherParameter);"));
+}
+
+TEST_F(FormatTest, DoesNotTryToParseUDLiteralsInPreCpp11Code) {
+ FormatStyle Style = getLLVMStyle();
+ Style.Standard = FormatStyle::LS_Cpp03;
+ EXPECT_EQ("#define x(_a) printf(\"foo\" _a);",
+ format("#define x(_a) printf(\"foo\"_a);", Style));
+}
+
+TEST_F(FormatTest, CppLexVersion) {
+ FormatStyle Style = getLLVMStyle();
+ // Formatting of x * y differs if x is a type.
+ verifyFormat("void foo() { MACRO(a * b); }", Style);
+ verifyFormat("void foo() { MACRO(int *b); }", Style);
+
+ // LLVM style uses latest lexer.
+ verifyFormat("void foo() { MACRO(char8_t *b); }", Style);
+ Style.Standard = FormatStyle::LS_Cpp17;
+ // But in c++17, char8_t isn't a keyword.
+ verifyFormat("void foo() { MACRO(char8_t * b); }", Style);
+}
+
+TEST_F(FormatTest, UnderstandsCpp1y) { verifyFormat("int bi{1'000'000};"); }
+
+TEST_F(FormatTest, BreakStringLiteralsBeforeUnbreakableTokenSequence) {
+ EXPECT_EQ("someFunction(\"aaabbbcccd\"\n"
+ " \"ddeeefff\");",
+ format("someFunction(\"aaabbbcccdddeeefff\");",
+ getLLVMStyleWithColumns(25)));
+ EXPECT_EQ("someFunction1234567890(\n"
+ " \"aaabbbcccdddeeefff\");",
+ format("someFunction1234567890(\"aaabbbcccdddeeefff\");",
+ getLLVMStyleWithColumns(26)));
+ EXPECT_EQ("someFunction1234567890(\n"
+ " \"aaabbbcccdddeeeff\"\n"
+ " \"f\");",
+ format("someFunction1234567890(\"aaabbbcccdddeeefff\");",
+ getLLVMStyleWithColumns(25)));
+ EXPECT_EQ("someFunction1234567890(\n"
+ " \"aaabbbcccdddeeeff\"\n"
+ " \"f\");",
+ format("someFunction1234567890(\"aaabbbcccdddeeefff\");",
+ getLLVMStyleWithColumns(24)));
+ EXPECT_EQ("someFunction(\n"
+ " \"aaabbbcc ddde \"\n"
+ " \"efff\");",
+ format("someFunction(\"aaabbbcc ddde efff\");",
+ getLLVMStyleWithColumns(25)));
+ EXPECT_EQ("someFunction(\"aaabbbccc \"\n"
+ " \"ddeeefff\");",
+ format("someFunction(\"aaabbbccc ddeeefff\");",
+ getLLVMStyleWithColumns(25)));
+ EXPECT_EQ("someFunction1234567890(\n"
+ " \"aaabb \"\n"
+ " \"cccdddeeefff\");",
+ format("someFunction1234567890(\"aaabb cccdddeeefff\");",
+ getLLVMStyleWithColumns(25)));
+ EXPECT_EQ("#define A \\\n"
+ " string s = \\\n"
+ " \"123456789\" \\\n"
+ " \"0\"; \\\n"
+ " int i;",
+ format("#define A string s = \"1234567890\"; int i;",
+ getLLVMStyleWithColumns(20)));
+ EXPECT_EQ("someFunction(\n"
+ " \"aaabbbcc \"\n"
+ " \"dddeeefff\");",
+ format("someFunction(\"aaabbbcc dddeeefff\");",
+ getLLVMStyleWithColumns(25)));
+}
+
+TEST_F(FormatTest, DoNotBreakStringLiteralsInEscapeSequence) {
+ EXPECT_EQ("\"\\a\"", format("\"\\a\"", getLLVMStyleWithColumns(3)));
+ EXPECT_EQ("\"\\\"", format("\"\\\"", getLLVMStyleWithColumns(2)));
+ EXPECT_EQ("\"test\"\n"
+ "\"\\n\"",
+ format("\"test\\n\"", getLLVMStyleWithColumns(7)));
+ EXPECT_EQ("\"tes\\\\\"\n"
+ "\"n\"",
+ format("\"tes\\\\n\"", getLLVMStyleWithColumns(7)));
+ EXPECT_EQ("\"\\\\\\\\\"\n"
+ "\"\\n\"",
+ format("\"\\\\\\\\\\n\"", getLLVMStyleWithColumns(7)));
+ EXPECT_EQ("\"\\uff01\"", format("\"\\uff01\"", getLLVMStyleWithColumns(7)));
+ EXPECT_EQ("\"\\uff01\"\n"
+ "\"test\"",
+ format("\"\\uff01test\"", getLLVMStyleWithColumns(8)));
+ EXPECT_EQ("\"\\Uff01ff02\"",
+ format("\"\\Uff01ff02\"", getLLVMStyleWithColumns(11)));
+ EXPECT_EQ("\"\\x000000000001\"\n"
+ "\"next\"",
+ format("\"\\x000000000001next\"", getLLVMStyleWithColumns(16)));
+ EXPECT_EQ("\"\\x000000000001next\"",
+ format("\"\\x000000000001next\"", getLLVMStyleWithColumns(15)));
+ EXPECT_EQ("\"\\x000000000001\"",
+ format("\"\\x000000000001\"", getLLVMStyleWithColumns(7)));
+ EXPECT_EQ("\"test\"\n"
+ "\"\\000000\"\n"
+ "\"000001\"",
+ format("\"test\\000000000001\"", getLLVMStyleWithColumns(9)));
+ EXPECT_EQ("\"test\\000\"\n"
+ "\"00000000\"\n"
+ "\"1\"",
+ format("\"test\\000000000001\"", getLLVMStyleWithColumns(10)));
+}
+
+TEST_F(FormatTest, DoNotCreateUnreasonableUnwrappedLines) {
+ verifyFormat("void f() {\n"
+ " return g() {}\n"
+ " void h() {}");
+ verifyFormat("int a[] = {void forgot_closing_brace(){f();\n"
+ "g();\n"
+ "}");
+}
+
+TEST_F(FormatTest, DoNotPrematurelyEndUnwrappedLineForReturnStatements) {
+ verifyFormat(
+ "void f() { return C{param1, param2}.SomeCall(param1, param2); }");
+}
+
+TEST_F(FormatTest, FormatsClosingBracesInEmptyNestedBlocks) {
+ verifyFormat("class X {\n"
+ " void f() {\n"
+ " }\n"
+ "};",
+ getLLVMStyleWithColumns(12));
+}
+
+TEST_F(FormatTest, ConfigurableIndentWidth) {
+ FormatStyle EightIndent = getLLVMStyleWithColumns(18);
+ EightIndent.IndentWidth = 8;
+ EightIndent.ContinuationIndentWidth = 8;
+ verifyFormat("void f() {\n"
+ " someFunction();\n"
+ " if (true) {\n"
+ " f();\n"
+ " }\n"
+ "}",
+ EightIndent);
+ verifyFormat("class X {\n"
+ " void f() {\n"
+ " }\n"
+ "};",
+ EightIndent);
+ verifyFormat("int x[] = {\n"
+ " call(),\n"
+ " call()};",
+ EightIndent);
+}
+
+TEST_F(FormatTest, ConfigurableFunctionDeclarationIndentAfterType) {
+ verifyFormat("double\n"
+ "f();",
+ getLLVMStyleWithColumns(8));
+}
+
+TEST_F(FormatTest, ConfigurableUseOfTab) {
+ FormatStyle Tab = getLLVMStyleWithColumns(42);
+ Tab.IndentWidth = 8;
+ Tab.UseTab = FormatStyle::UT_Always;
+ Tab.AlignEscapedNewlines = FormatStyle::ENAS_Left;
+
+ EXPECT_EQ("if (aaaaaaaa && // q\n"
+ " bb)\t\t// w\n"
+ "\t;",
+ format("if (aaaaaaaa &&// q\n"
+ "bb)// w\n"
+ ";",
+ Tab));
+ EXPECT_EQ("if (aaa && bbb) // w\n"
+ "\t;",
+ format("if(aaa&&bbb)// w\n"
+ ";",
+ Tab));
+
+ verifyFormat("class X {\n"
+ "\tvoid f() {\n"
+ "\t\tsomeFunction(parameter1,\n"
+ "\t\t\t parameter2);\n"
+ "\t}\n"
+ "};",
+ Tab);
+ verifyFormat("#define A \\\n"
+ "\tvoid f() { \\\n"
+ "\t\tsomeFunction( \\\n"
+ "\t\t parameter1, \\\n"
+ "\t\t parameter2); \\\n"
+ "\t}",
+ Tab);
+ verifyFormat("int a;\t // x\n"
+ "int bbbbbbbb; // x\n",
+ Tab);
+
+ Tab.TabWidth = 4;
+ Tab.IndentWidth = 8;
+ verifyFormat("class TabWidth4Indent8 {\n"
+ "\t\tvoid f() {\n"
+ "\t\t\t\tsomeFunction(parameter1,\n"
+ "\t\t\t\t\t\t\t parameter2);\n"
+ "\t\t}\n"
+ "};",
+ Tab);
+
+ Tab.TabWidth = 4;
+ Tab.IndentWidth = 4;
+ verifyFormat("class TabWidth4Indent4 {\n"
+ "\tvoid f() {\n"
+ "\t\tsomeFunction(parameter1,\n"
+ "\t\t\t\t\t parameter2);\n"
+ "\t}\n"
+ "};",
+ Tab);
+
+ Tab.TabWidth = 8;
+ Tab.IndentWidth = 4;
+ verifyFormat("class TabWidth8Indent4 {\n"
+ " void f() {\n"
+ "\tsomeFunction(parameter1,\n"
+ "\t\t parameter2);\n"
+ " }\n"
+ "};",
+ Tab);
+
+ Tab.TabWidth = 8;
+ Tab.IndentWidth = 8;
+ EXPECT_EQ("/*\n"
+ "\t a\t\tcomment\n"
+ "\t in multiple lines\n"
+ " */",
+ format(" /*\t \t \n"
+ " \t \t a\t\tcomment\t \t\n"
+ " \t \t in multiple lines\t\n"
+ " \t */",
+ Tab));
+
+ Tab.UseTab = FormatStyle::UT_ForIndentation;
+ verifyFormat("{\n"
+ "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n"
+ "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n"
+ "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n"
+ "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n"
+ "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n"
+ "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n"
+ "};",
+ Tab);
+ verifyFormat("enum AA {\n"
+ "\ta1, // Force multiple lines\n"
+ "\ta2,\n"
+ "\ta3\n"
+ "};",
+ Tab);
+ EXPECT_EQ("if (aaaaaaaa && // q\n"
+ " bb) // w\n"
+ "\t;",
+ format("if (aaaaaaaa &&// q\n"
+ "bb)// w\n"
+ ";",
+ Tab));
+ verifyFormat("class X {\n"
+ "\tvoid f() {\n"
+ "\t\tsomeFunction(parameter1,\n"
+ "\t\t parameter2);\n"
+ "\t}\n"
+ "};",
+ Tab);
+ verifyFormat("{\n"
+ "\tQ(\n"
+ "\t {\n"
+ "\t\t int a;\n"
+ "\t\t someFunction(aaaaaaaa,\n"
+ "\t\t bbbbbbb);\n"
+ "\t },\n"
+ "\t p);\n"
+ "}",
+ Tab);
+ EXPECT_EQ("{\n"
+ "\t/* aaaa\n"
+ "\t bbbb */\n"
+ "}",
+ format("{\n"
+ "/* aaaa\n"
+ " bbbb */\n"
+ "}",
+ Tab));
+ EXPECT_EQ("{\n"
+ "\t/*\n"
+ "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ "\t bbbbbbbbbbbbb\n"
+ "\t*/\n"
+ "}",
+ format("{\n"
+ "/*\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n"
+ "*/\n"
+ "}",
+ Tab));
+ EXPECT_EQ("{\n"
+ "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ "\t// bbbbbbbbbbbbb\n"
+ "}",
+ format("{\n"
+ "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n"
+ "}",
+ Tab));
+ EXPECT_EQ("{\n"
+ "\t/*\n"
+ "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ "\t bbbbbbbbbbbbb\n"
+ "\t*/\n"
+ "}",
+ format("{\n"
+ "\t/*\n"
+ "\t aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n"
+ "\t*/\n"
+ "}",
+ Tab));
+ EXPECT_EQ("{\n"
+ "\t/*\n"
+ "\n"
+ "\t*/\n"
+ "}",
+ format("{\n"
+ "\t/*\n"
+ "\n"
+ "\t*/\n"
+ "}",
+ Tab));
+ EXPECT_EQ("{\n"
+ "\t/*\n"
+ " asdf\n"
+ "\t*/\n"
+ "}",
+ format("{\n"
+ "\t/*\n"
+ " asdf\n"
+ "\t*/\n"
+ "}",
+ Tab));
+
+ Tab.UseTab = FormatStyle::UT_Never;
+ EXPECT_EQ("/*\n"
+ " a\t\tcomment\n"
+ " in multiple lines\n"
+ " */",
+ format(" /*\t \t \n"
+ " \t \t a\t\tcomment\t \t\n"
+ " \t \t in multiple lines\t\n"
+ " \t */",
+ Tab));
+ EXPECT_EQ("/* some\n"
+ " comment */",
+ format(" \t \t /* some\n"
+ " \t \t comment */",
+ Tab));
+ EXPECT_EQ("int a; /* some\n"
+ " comment */",
+ format(" \t \t int a; /* some\n"
+ " \t \t comment */",
+ Tab));
+
+ EXPECT_EQ("int a; /* some\n"
+ "comment */",
+ format(" \t \t int\ta; /* some\n"
+ " \t \t comment */",
+ Tab));
+ EXPECT_EQ("f(\"\t\t\"); /* some\n"
+ " comment */",
+ format(" \t \t f(\"\t\t\"); /* some\n"
+ " \t \t comment */",
+ Tab));
+ EXPECT_EQ("{\n"
+ " /*\n"
+ " * Comment\n"
+ " */\n"
+ " int i;\n"
+ "}",
+ format("{\n"
+ "\t/*\n"
+ "\t * Comment\n"
+ "\t */\n"
+ "\t int i;\n"
+ "}"));
+
+ Tab.UseTab = FormatStyle::UT_ForContinuationAndIndentation;
+ Tab.TabWidth = 8;
+ Tab.IndentWidth = 8;
+ EXPECT_EQ("if (aaaaaaaa && // q\n"
+ " bb) // w\n"
+ "\t;",
+ format("if (aaaaaaaa &&// q\n"
+ "bb)// w\n"
+ ";",
+ Tab));
+ EXPECT_EQ("if (aaa && bbb) // w\n"
+ "\t;",
+ format("if(aaa&&bbb)// w\n"
+ ";",
+ Tab));
+ verifyFormat("class X {\n"
+ "\tvoid f() {\n"
+ "\t\tsomeFunction(parameter1,\n"
+ "\t\t\t parameter2);\n"
+ "\t}\n"
+ "};",
+ Tab);
+ verifyFormat("#define A \\\n"
+ "\tvoid f() { \\\n"
+ "\t\tsomeFunction( \\\n"
+ "\t\t parameter1, \\\n"
+ "\t\t parameter2); \\\n"
+ "\t}",
+ Tab);
+ Tab.TabWidth = 4;
+ Tab.IndentWidth = 8;
+ verifyFormat("class TabWidth4Indent8 {\n"
+ "\t\tvoid f() {\n"
+ "\t\t\t\tsomeFunction(parameter1,\n"
+ "\t\t\t\t\t\t\t parameter2);\n"
+ "\t\t}\n"
+ "};",
+ Tab);
+ Tab.TabWidth = 4;
+ Tab.IndentWidth = 4;
+ verifyFormat("class TabWidth4Indent4 {\n"
+ "\tvoid f() {\n"
+ "\t\tsomeFunction(parameter1,\n"
+ "\t\t\t\t\t parameter2);\n"
+ "\t}\n"
+ "};",
+ Tab);
+ Tab.TabWidth = 8;
+ Tab.IndentWidth = 4;
+ verifyFormat("class TabWidth8Indent4 {\n"
+ " void f() {\n"
+ "\tsomeFunction(parameter1,\n"
+ "\t\t parameter2);\n"
+ " }\n"
+ "};",
+ Tab);
+ Tab.TabWidth = 8;
+ Tab.IndentWidth = 8;
+ EXPECT_EQ("/*\n"
+ "\t a\t\tcomment\n"
+ "\t in multiple lines\n"
+ " */",
+ format(" /*\t \t \n"
+ " \t \t a\t\tcomment\t \t\n"
+ " \t \t in multiple lines\t\n"
+ " \t */",
+ Tab));
+ verifyFormat("{\n"
+ "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n"
+ "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n"
+ "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n"
+ "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n"
+ "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n"
+ "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n"
+ "};",
+ Tab);
+ verifyFormat("enum AA {\n"
+ "\ta1, // Force multiple lines\n"
+ "\ta2,\n"
+ "\ta3\n"
+ "};",
+ Tab);
+ EXPECT_EQ("if (aaaaaaaa && // q\n"
+ " bb) // w\n"
+ "\t;",
+ format("if (aaaaaaaa &&// q\n"
+ "bb)// w\n"
+ ";",
+ Tab));
+ verifyFormat("class X {\n"
+ "\tvoid f() {\n"
+ "\t\tsomeFunction(parameter1,\n"
+ "\t\t\t parameter2);\n"
+ "\t}\n"
+ "};",
+ Tab);
+ verifyFormat("{\n"
+ "\tQ(\n"
+ "\t {\n"
+ "\t\t int a;\n"
+ "\t\t someFunction(aaaaaaaa,\n"
+ "\t\t\t\t bbbbbbb);\n"
+ "\t },\n"
+ "\t p);\n"
+ "}",
+ Tab);
+ EXPECT_EQ("{\n"
+ "\t/* aaaa\n"
+ "\t bbbb */\n"
+ "}",
+ format("{\n"
+ "/* aaaa\n"
+ " bbbb */\n"
+ "}",
+ Tab));
+ EXPECT_EQ("{\n"
+ "\t/*\n"
+ "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ "\t bbbbbbbbbbbbb\n"
+ "\t*/\n"
+ "}",
+ format("{\n"
+ "/*\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n"
+ "*/\n"
+ "}",
+ Tab));
+ EXPECT_EQ("{\n"
+ "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ "\t// bbbbbbbbbbbbb\n"
+ "}",
+ format("{\n"
+ "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n"
+ "}",
+ Tab));
+ EXPECT_EQ("{\n"
+ "\t/*\n"
+ "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n"
+ "\t bbbbbbbbbbbbb\n"
+ "\t*/\n"
+ "}",
+ format("{\n"
+ "\t/*\n"
+ "\t aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n"
+ "\t*/\n"
+ "}",
+ Tab));
+ EXPECT_EQ("{\n"
+ "\t/*\n"
+ "\n"
+ "\t*/\n"
+ "}",
+ format("{\n"
+ "\t/*\n"
+ "\n"
+ "\t*/\n"
+ "}",
+ Tab));
+ EXPECT_EQ("{\n"
+ "\t/*\n"
+ " asdf\n"
+ "\t*/\n"
+ "}",
+ format("{\n"
+ "\t/*\n"
+ " asdf\n"
+ "\t*/\n"
+ "}",
+ Tab));
+ EXPECT_EQ("/*\n"
+ "\t a\t\tcomment\n"
+ "\t in multiple lines\n"
+ " */",
+ format(" /*\t \t \n"
+ " \t \t a\t\tcomment\t \t\n"
+ " \t \t in multiple lines\t\n"
+ " \t */",
+ Tab));
+ EXPECT_EQ("/* some\n"
+ " comment */",
+ format(" \t \t /* some\n"
+ " \t \t comment */",
+ Tab));
+ EXPECT_EQ("int a; /* some\n"
+ " comment */",
+ format(" \t \t int a; /* some\n"
+ " \t \t comment */",
+ Tab));
+ EXPECT_EQ("int a; /* some\n"
+ "comment */",
+ format(" \t \t int\ta; /* some\n"
+ " \t \t comment */",
+ Tab));
+ EXPECT_EQ("f(\"\t\t\"); /* some\n"
+ " comment */",
+ format(" \t \t f(\"\t\t\"); /* some\n"
+ " \t \t comment */",
+ Tab));
+ EXPECT_EQ("{\n"
+ " /*\n"
+ " * Comment\n"
+ " */\n"
+ " int i;\n"
+ "}",
+ format("{\n"
+ "\t/*\n"
+ "\t * Comment\n"
+ "\t */\n"
+ "\t int i;\n"
+ "}"));
+ Tab.AlignConsecutiveAssignments = true;
+ Tab.AlignConsecutiveDeclarations = true;
+ Tab.TabWidth = 4;
+ Tab.IndentWidth = 4;
+ verifyFormat("class Assign {\n"
+ "\tvoid f() {\n"
+ "\t\tint x = 123;\n"
+ "\t\tint random = 4;\n"
+ "\t\tstd::string alphabet =\n"
+ "\t\t\t\"abcdefghijklmnopqrstuvwxyz\";\n"
+ "\t}\n"
+ "};",
+ Tab);
+}
+
+TEST_F(FormatTest, ZeroTabWidth) {
+ FormatStyle Tab = getLLVMStyleWithColumns(42);
+ Tab.IndentWidth = 8;
+ Tab.UseTab = FormatStyle::UT_Never;
+ Tab.TabWidth = 0;
+ EXPECT_EQ("void a(){\n"
+ " // line starts with '\t'\n"
+ "};",
+ format("void a(){\n"
+ "\t// line starts with '\t'\n"
+ "};",
+ Tab));
+
+ EXPECT_EQ("void a(){\n"
+ " // line starts with '\t'\n"
+ "};",
+ format("void a(){\n"
+ "\t\t// line starts with '\t'\n"
+ "};",
+ Tab));
+
+ Tab.UseTab = FormatStyle::UT_ForIndentation;
+ EXPECT_EQ("void a(){\n"
+ " // line starts with '\t'\n"
+ "};",
+ format("void a(){\n"
+ "\t// line starts with '\t'\n"
+ "};",
+ Tab));
+
+ EXPECT_EQ("void a(){\n"
+ " // line starts with '\t'\n"
+ "};",
+ format("void a(){\n"
+ "\t\t// line starts with '\t'\n"
+ "};",
+ Tab));
+
+ Tab.UseTab = FormatStyle::UT_ForContinuationAndIndentation;
+ EXPECT_EQ("void a(){\n"
+ " // line starts with '\t'\n"
+ "};",
+ format("void a(){\n"
+ "\t// line starts with '\t'\n"
+ "};",
+ Tab));
+
+ EXPECT_EQ("void a(){\n"
+ " // line starts with '\t'\n"
+ "};",
+ format("void a(){\n"
+ "\t\t// line starts with '\t'\n"
+ "};",
+ Tab));
+
+ Tab.UseTab = FormatStyle::UT_Always;
+ EXPECT_EQ("void a(){\n"
+ "// line starts with '\t'\n"
+ "};",
+ format("void a(){\n"
+ "\t// line starts with '\t'\n"
+ "};",
+ Tab));
+
+ EXPECT_EQ("void a(){\n"
+ "// line starts with '\t'\n"
+ "};",
+ format("void a(){\n"
+ "\t\t// line starts with '\t'\n"
+ "};",
+ Tab));
+}
+
+TEST_F(FormatTest, CalculatesOriginalColumn) {
+ EXPECT_EQ("\"qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n"
+ "q\"; /* some\n"
+ " comment */",
+ format(" \"qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n"
+ "q\"; /* some\n"
+ " comment */",
+ getLLVMStyle()));
+ EXPECT_EQ("// qqqqqqqqqqqqqqqqqqqqqqqqqq\n"
+ "/* some\n"
+ " comment */",
+ format("// qqqqqqqqqqqqqqqqqqqqqqqqqq\n"
+ " /* some\n"
+ " comment */",
+ getLLVMStyle()));
+ EXPECT_EQ("// qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n"
+ "qqq\n"
+ "/* some\n"
+ " comment */",
+ format("// qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n"
+ "qqq\n"
+ " /* some\n"
+ " comment */",
+ getLLVMStyle()));
+ EXPECT_EQ("inttt qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\\\n"
+ "wwww; /* some\n"
+ " comment */",
+ format(" inttt qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\\\n"
+ "wwww; /* some\n"
+ " comment */",
+ getLLVMStyle()));
+}
+
+TEST_F(FormatTest, ConfigurableSpaceBeforeParens) {
+ FormatStyle NoSpace = getLLVMStyle();
+ NoSpace.SpaceBeforeParens = FormatStyle::SBPO_Never;
+
+ verifyFormat("while(true)\n"
+ " continue;",
+ NoSpace);
+ verifyFormat("for(;;)\n"
+ " continue;",
+ NoSpace);
+ verifyFormat("if(true)\n"
+ " f();\n"
+ "else if(true)\n"
+ " f();",
+ NoSpace);
+ verifyFormat("do {\n"
+ " do_something();\n"
+ "} while(something());",
+ NoSpace);
+ verifyFormat("switch(x) {\n"
+ "default:\n"
+ " break;\n"
+ "}",
+ NoSpace);
+ verifyFormat("auto i = std::make_unique<int>(5);", NoSpace);
+ verifyFormat("size_t x = sizeof(x);", NoSpace);
+ verifyFormat("auto f(int x) -> decltype(x);", NoSpace);
+ verifyFormat("int f(T x) noexcept(x.create());", NoSpace);
+ verifyFormat("alignas(128) char a[128];", NoSpace);
+ verifyFormat("size_t x = alignof(MyType);", NoSpace);
+ verifyFormat("static_assert(sizeof(char) == 1, \"Impossible!\");", NoSpace);
+ verifyFormat("int f() throw(Deprecated);", NoSpace);
+ verifyFormat("typedef void (*cb)(int);", NoSpace);
+ verifyFormat("T A::operator()();", NoSpace);
+ verifyFormat("X A::operator++(T);", NoSpace);
+ verifyFormat("auto lambda = []() { return 0; };", NoSpace);
+
+ FormatStyle Space = getLLVMStyle();
+ Space.SpaceBeforeParens = FormatStyle::SBPO_Always;
+
+ verifyFormat("int f ();", Space);
+ verifyFormat("void f (int a, T b) {\n"
+ " while (true)\n"
+ " continue;\n"
+ "}",
+ Space);
+ verifyFormat("if (true)\n"
+ " f ();\n"
+ "else if (true)\n"
+ " f ();",
+ Space);
+ verifyFormat("do {\n"
+ " do_something ();\n"
+ "} while (something ());",
+ Space);
+ verifyFormat("switch (x) {\n"
+ "default:\n"
+ " break;\n"
+ "}",
+ Space);
+ verifyFormat("A::A () : a (1) {}", Space);
+ verifyFormat("void f () __attribute__ ((asdf));", Space);
+ verifyFormat("*(&a + 1);\n"
+ "&((&a)[1]);\n"
+ "a[(b + c) * d];\n"
+ "(((a + 1) * 2) + 3) * 4;",
+ Space);
+ verifyFormat("#define A(x) x", Space);
+ verifyFormat("#define A (x) x", Space);
+ verifyFormat("#if defined(x)\n"
+ "#endif",
+ Space);
+ verifyFormat("auto i = std::make_unique<int> (5);", Space);
+ verifyFormat("size_t x = sizeof (x);", Space);
+ verifyFormat("auto f (int x) -> decltype (x);", Space);
+ verifyFormat("int f (T x) noexcept (x.create ());", Space);
+ verifyFormat("alignas (128) char a[128];", Space);
+ verifyFormat("size_t x = alignof (MyType);", Space);
+ verifyFormat("static_assert (sizeof (char) == 1, \"Impossible!\");", Space);
+ verifyFormat("int f () throw (Deprecated);", Space);
+ verifyFormat("typedef void (*cb) (int);", Space);
+ verifyFormat("T A::operator() ();", Space);
+ verifyFormat("X A::operator++ (T);", Space);
+ verifyFormat("auto lambda = [] () { return 0; };", Space);
+ verifyFormat("int x = int (y);", Space);
+
+ FormatStyle SomeSpace = getLLVMStyle();
+ SomeSpace.SpaceBeforeParens = FormatStyle::SBPO_NonEmptyParentheses;
+
+ verifyFormat("[]() -> float {}", SomeSpace);
+ verifyFormat("[] (auto foo) {}", SomeSpace);
+ verifyFormat("[foo]() -> int {}", SomeSpace);
+ verifyFormat("int f();", SomeSpace);
+ verifyFormat("void f (int a, T b) {\n"
+ " while (true)\n"
+ " continue;\n"
+ "}",
+ SomeSpace);
+ verifyFormat("if (true)\n"
+ " f();\n"
+ "else if (true)\n"
+ " f();",
+ SomeSpace);
+ verifyFormat("do {\n"
+ " do_something();\n"
+ "} while (something());",
+ SomeSpace);
+ verifyFormat("switch (x) {\n"
+ "default:\n"
+ " break;\n"
+ "}",
+ SomeSpace);
+ verifyFormat("A::A() : a (1) {}", SomeSpace);
+ verifyFormat("void f() __attribute__ ((asdf));", SomeSpace);
+ verifyFormat("*(&a + 1);\n"
+ "&((&a)[1]);\n"
+ "a[(b + c) * d];\n"
+ "(((a + 1) * 2) + 3) * 4;",
+ SomeSpace);
+ verifyFormat("#define A(x) x", SomeSpace);
+ verifyFormat("#define A (x) x", SomeSpace);
+ verifyFormat("#if defined(x)\n"
+ "#endif",
+ SomeSpace);
+ verifyFormat("auto i = std::make_unique<int> (5);", SomeSpace);
+ verifyFormat("size_t x = sizeof (x);", SomeSpace);
+ verifyFormat("auto f (int x) -> decltype (x);", SomeSpace);
+ verifyFormat("int f (T x) noexcept (x.create());", SomeSpace);
+ verifyFormat("alignas (128) char a[128];", SomeSpace);
+ verifyFormat("size_t x = alignof (MyType);", SomeSpace);
+ verifyFormat("static_assert (sizeof (char) == 1, \"Impossible!\");",
+ SomeSpace);
+ verifyFormat("int f() throw (Deprecated);", SomeSpace);
+ verifyFormat("typedef void (*cb) (int);", SomeSpace);
+ verifyFormat("T A::operator()();", SomeSpace);
+ verifyFormat("X A::operator++ (T);", SomeSpace);
+ verifyFormat("int x = int (y);", SomeSpace);
+ verifyFormat("auto lambda = []() { return 0; };", SomeSpace);
+}
+
+TEST_F(FormatTest, SpaceAfterLogicalNot) {
+ FormatStyle Spaces = getLLVMStyle();
+ Spaces.SpaceAfterLogicalNot = true;
+
+ verifyFormat("bool x = ! y", Spaces);
+ verifyFormat("if (! isFailure())", Spaces);
+ verifyFormat("if (! (a && b))", Spaces);
+ verifyFormat("\"Error!\"", Spaces);
+ verifyFormat("! ! x", Spaces);
+}
+
+TEST_F(FormatTest, ConfigurableSpacesInParentheses) {
+ FormatStyle Spaces = getLLVMStyle();
+
+ Spaces.SpacesInParentheses = true;
+ verifyFormat("do_something( ::globalVar );", Spaces);
+ verifyFormat("call( x, y, z );", Spaces);
+ verifyFormat("call();", Spaces);
+ verifyFormat("std::function<void( int, int )> callback;", Spaces);
+ verifyFormat("void inFunction() { std::function<void( int, int )> fct; }",
+ Spaces);
+ verifyFormat("while ( (bool)1 )\n"
+ " continue;",
+ Spaces);
+ verifyFormat("for ( ;; )\n"
+ " continue;",
+ Spaces);
+ verifyFormat("if ( true )\n"
+ " f();\n"
+ "else if ( true )\n"
+ " f();",
+ Spaces);
+ verifyFormat("do {\n"
+ " do_something( (int)i );\n"
+ "} while ( something() );",
+ Spaces);
+ verifyFormat("switch ( x ) {\n"
+ "default:\n"
+ " break;\n"
+ "}",
+ Spaces);
+
+ Spaces.SpacesInParentheses = false;
+ Spaces.SpacesInCStyleCastParentheses = true;
+ verifyFormat("Type *A = ( Type * )P;", Spaces);
+ verifyFormat("Type *A = ( vector<Type *, int *> )P;", Spaces);
+ verifyFormat("x = ( int32 )y;", Spaces);
+ verifyFormat("int a = ( int )(2.0f);", Spaces);
+ verifyFormat("#define AA(X) sizeof((( X * )NULL)->a)", Spaces);
+ verifyFormat("my_int a = ( my_int )sizeof(int);", Spaces);
+ verifyFormat("#define x (( int )-1)", Spaces);
+
+ // Run the first set of tests again with:
+ Spaces.SpacesInParentheses = false;
+ Spaces.SpaceInEmptyParentheses = true;
+ Spaces.SpacesInCStyleCastParentheses = true;
+ verifyFormat("call(x, y, z);", Spaces);
+ verifyFormat("call( );", Spaces);
+ verifyFormat("std::function<void(int, int)> callback;", Spaces);
+ verifyFormat("while (( bool )1)\n"
+ " continue;",
+ Spaces);
+ verifyFormat("for (;;)\n"
+ " continue;",
+ Spaces);
+ verifyFormat("if (true)\n"
+ " f( );\n"
+ "else if (true)\n"
+ " f( );",
+ Spaces);
+ verifyFormat("do {\n"
+ " do_something(( int )i);\n"
+ "} while (something( ));",
+ Spaces);
+ verifyFormat("switch (x) {\n"
+ "default:\n"
+ " break;\n"
+ "}",
+ Spaces);
+
+ // Run the first set of tests again with:
+ Spaces.SpaceAfterCStyleCast = true;
+ verifyFormat("call(x, y, z);", Spaces);
+ verifyFormat("call( );", Spaces);
+ verifyFormat("std::function<void(int, int)> callback;", Spaces);
+ verifyFormat("while (( bool ) 1)\n"
+ " continue;",
+ Spaces);
+ verifyFormat("for (;;)\n"
+ " continue;",
+ Spaces);
+ verifyFormat("if (true)\n"
+ " f( );\n"
+ "else if (true)\n"
+ " f( );",
+ Spaces);
+ verifyFormat("do {\n"
+ " do_something(( int ) i);\n"
+ "} while (something( ));",
+ Spaces);
+ verifyFormat("switch (x) {\n"
+ "default:\n"
+ " break;\n"
+ "}",
+ Spaces);
+
+ // Run subset of tests again with:
+ Spaces.SpacesInCStyleCastParentheses = false;
+ Spaces.SpaceAfterCStyleCast = true;
+ verifyFormat("while ((bool) 1)\n"
+ " continue;",
+ Spaces);
+ verifyFormat("do {\n"
+ " do_something((int) i);\n"
+ "} while (something( ));",
+ Spaces);
+}
+
+TEST_F(FormatTest, ConfigurableSpacesInSquareBrackets) {
+ verifyFormat("int a[5];");
+ verifyFormat("a[3] += 42;");
+
+ FormatStyle Spaces = getLLVMStyle();
+ Spaces.SpacesInSquareBrackets = true;
+ // Not lambdas.
+ verifyFormat("int a[ 5 ];", Spaces);
+ verifyFormat("a[ 3 ] += 42;", Spaces);
+ verifyFormat("constexpr char hello[]{\"hello\"};", Spaces);
+ verifyFormat("double &operator[](int i) { return 0; }\n"
+ "int i;",
+ Spaces);
+ verifyFormat("std::unique_ptr<int[]> foo() {}", Spaces);
+ verifyFormat("int i = a[ a ][ a ]->f();", Spaces);
+ verifyFormat("int i = (*b)[ a ]->f();", Spaces);
+ // Lambdas.
+ verifyFormat("int c = []() -> int { return 2; }();\n", Spaces);
+ verifyFormat("return [ i, args... ] {};", Spaces);
+ verifyFormat("int foo = [ &bar ]() {};", Spaces);
+ verifyFormat("int foo = [ = ]() {};", Spaces);
+ verifyFormat("int foo = [ & ]() {};", Spaces);
+ verifyFormat("int foo = [ =, &bar ]() {};", Spaces);
+ verifyFormat("int foo = [ &bar, = ]() {};", Spaces);
+}
+
+TEST_F(FormatTest, ConfigurableSpaceBeforeBrackets) {
+ FormatStyle NoSpaceStyle = getLLVMStyle();
+ verifyFormat("int a[5];", NoSpaceStyle);
+ verifyFormat("a[3] += 42;", NoSpaceStyle);
+
+ verifyFormat("int a[1];", NoSpaceStyle);
+ verifyFormat("int 1 [a];", NoSpaceStyle);
+ verifyFormat("int a[1][2];", NoSpaceStyle);
+ verifyFormat("a[7] = 5;", NoSpaceStyle);
+ verifyFormat("int a = (f())[23];", NoSpaceStyle);
+ verifyFormat("f([] {})", NoSpaceStyle);
+
+ FormatStyle Space = getLLVMStyle();
+ Space.SpaceBeforeSquareBrackets = true;
+ verifyFormat("int c = []() -> int { return 2; }();\n", Space);
+ verifyFormat("return [i, args...] {};", Space);
+
+ verifyFormat("int a [5];", Space);
+ verifyFormat("a [3] += 42;", Space);
+ verifyFormat("constexpr char hello []{\"hello\"};", Space);
+ verifyFormat("double &operator[](int i) { return 0; }\n"
+ "int i;",
+ Space);
+ verifyFormat("std::unique_ptr<int []> foo() {}", Space);
+ verifyFormat("int i = a [a][a]->f();", Space);
+ verifyFormat("int i = (*b) [a]->f();", Space);
+
+ verifyFormat("int a [1];", Space);
+ verifyFormat("int 1 [a];", Space);
+ verifyFormat("int a [1][2];", Space);
+ verifyFormat("a [7] = 5;", Space);
+ verifyFormat("int a = (f()) [23];", Space);
+ verifyFormat("f([] {})", Space);
+}
+
+TEST_F(FormatTest, ConfigurableSpaceBeforeAssignmentOperators) {
+ verifyFormat("int a = 5;");
+ verifyFormat("a += 42;");
+ verifyFormat("a or_eq 8;");
+
+ FormatStyle Spaces = getLLVMStyle();
+ Spaces.SpaceBeforeAssignmentOperators = false;
+ verifyFormat("int a= 5;", Spaces);
+ verifyFormat("a+= 42;", Spaces);
+ verifyFormat("a or_eq 8;", Spaces);
+}
+
+TEST_F(FormatTest, ConfigurableSpaceBeforeColon) {
+ verifyFormat("class Foo : public Bar {};");
+ verifyFormat("Foo::Foo() : foo(1) {}");
+ verifyFormat("for (auto a : b) {\n}");
+ verifyFormat("int x = a ? b : c;");
+ verifyFormat("{\n"
+ "label0:\n"
+ " int x = 0;\n"
+ "}");
+ verifyFormat("switch (x) {\n"
+ "case 1:\n"
+ "default:\n"
+ "}");
+
+ FormatStyle CtorInitializerStyle = getLLVMStyleWithColumns(30);
+ CtorInitializerStyle.SpaceBeforeCtorInitializerColon = false;
+ verifyFormat("class Foo : public Bar {};", CtorInitializerStyle);
+ verifyFormat("Foo::Foo(): foo(1) {}", CtorInitializerStyle);
+ verifyFormat("for (auto a : b) {\n}", CtorInitializerStyle);
+ verifyFormat("int x = a ? b : c;", CtorInitializerStyle);
+ verifyFormat("{\n"
+ "label1:\n"
+ " int x = 0;\n"
+ "}",
+ CtorInitializerStyle);
+ verifyFormat("switch (x) {\n"
+ "case 1:\n"
+ "default:\n"
+ "}",
+ CtorInitializerStyle);
+ CtorInitializerStyle.BreakConstructorInitializers =
+ FormatStyle::BCIS_AfterColon;
+ verifyFormat("Fooooooooooo::Fooooooooooo():\n"
+ " aaaaaaaaaaaaaaaa(1),\n"
+ " bbbbbbbbbbbbbbbb(2) {}",
+ CtorInitializerStyle);
+ CtorInitializerStyle.BreakConstructorInitializers =
+ FormatStyle::BCIS_BeforeComma;
+ verifyFormat("Fooooooooooo::Fooooooooooo()\n"
+ " : aaaaaaaaaaaaaaaa(1)\n"
+ " , bbbbbbbbbbbbbbbb(2) {}",
+ CtorInitializerStyle);
+ CtorInitializerStyle.BreakConstructorInitializers =
+ FormatStyle::BCIS_BeforeColon;
+ verifyFormat("Fooooooooooo::Fooooooooooo()\n"
+ " : aaaaaaaaaaaaaaaa(1),\n"
+ " bbbbbbbbbbbbbbbb(2) {}",
+ CtorInitializerStyle);
+ CtorInitializerStyle.ConstructorInitializerIndentWidth = 0;
+ verifyFormat("Fooooooooooo::Fooooooooooo()\n"
+ ": aaaaaaaaaaaaaaaa(1),\n"
+ " bbbbbbbbbbbbbbbb(2) {}",
+ CtorInitializerStyle);
+
+ FormatStyle InheritanceStyle = getLLVMStyleWithColumns(30);
+ InheritanceStyle.SpaceBeforeInheritanceColon = false;
+ verifyFormat("class Foo: public Bar {};", InheritanceStyle);
+ verifyFormat("Foo::Foo() : foo(1) {}", InheritanceStyle);
+ verifyFormat("for (auto a : b) {\n}", InheritanceStyle);
+ verifyFormat("int x = a ? b : c;", InheritanceStyle);
+ verifyFormat("{\n"
+ "label2:\n"
+ " int x = 0;\n"
+ "}",
+ InheritanceStyle);
+ verifyFormat("switch (x) {\n"
+ "case 1:\n"
+ "default:\n"
+ "}",
+ InheritanceStyle);
+ InheritanceStyle.BreakInheritanceList = FormatStyle::BILS_AfterColon;
+ verifyFormat("class Foooooooooooooooooooooo:\n"
+ " public aaaaaaaaaaaaaaaaaa,\n"
+ " public bbbbbbbbbbbbbbbbbb {\n"
+ "}",
+ InheritanceStyle);
+ InheritanceStyle.BreakInheritanceList = FormatStyle::BILS_BeforeComma;
+ verifyFormat("class Foooooooooooooooooooooo\n"
+ " : public aaaaaaaaaaaaaaaaaa\n"
+ " , public bbbbbbbbbbbbbbbbbb {\n"
+ "}",
+ InheritanceStyle);
+ InheritanceStyle.BreakInheritanceList = FormatStyle::BILS_BeforeColon;
+ verifyFormat("class Foooooooooooooooooooooo\n"
+ " : public aaaaaaaaaaaaaaaaaa,\n"
+ " public bbbbbbbbbbbbbbbbbb {\n"
+ "}",
+ InheritanceStyle);
+ InheritanceStyle.ConstructorInitializerIndentWidth = 0;
+ verifyFormat("class Foooooooooooooooooooooo\n"
+ ": public aaaaaaaaaaaaaaaaaa,\n"
+ " public bbbbbbbbbbbbbbbbbb {}",
+ InheritanceStyle);
+
+ FormatStyle ForLoopStyle = getLLVMStyle();
+ ForLoopStyle.SpaceBeforeRangeBasedForLoopColon = false;
+ verifyFormat("class Foo : public Bar {};", ForLoopStyle);
+ verifyFormat("Foo::Foo() : foo(1) {}", ForLoopStyle);
+ verifyFormat("for (auto a: b) {\n}", ForLoopStyle);
+ verifyFormat("int x = a ? b : c;", ForLoopStyle);
+ verifyFormat("{\n"
+ "label2:\n"
+ " int x = 0;\n"
+ "}",
+ ForLoopStyle);
+ verifyFormat("switch (x) {\n"
+ "case 1:\n"
+ "default:\n"
+ "}",
+ ForLoopStyle);
+
+ FormatStyle NoSpaceStyle = getLLVMStyle();
+ NoSpaceStyle.SpaceBeforeCtorInitializerColon = false;
+ NoSpaceStyle.SpaceBeforeInheritanceColon = false;
+ NoSpaceStyle.SpaceBeforeRangeBasedForLoopColon = false;
+ verifyFormat("class Foo: public Bar {};", NoSpaceStyle);
+ verifyFormat("Foo::Foo(): foo(1) {}", NoSpaceStyle);
+ verifyFormat("for (auto a: b) {\n}", NoSpaceStyle);
+ verifyFormat("int x = a ? b : c;", NoSpaceStyle);
+ verifyFormat("{\n"
+ "label3:\n"
+ " int x = 0;\n"
+ "}",
+ NoSpaceStyle);
+ verifyFormat("switch (x) {\n"
+ "case 1:\n"
+ "default:\n"
+ "}",
+ NoSpaceStyle);
+}
+
+TEST_F(FormatTest, AlignConsecutiveMacros) {
+ FormatStyle Style = getLLVMStyle();
+ Style.AlignConsecutiveAssignments = true;
+ Style.AlignConsecutiveDeclarations = true;
+ Style.AlignConsecutiveMacros = false;
+
+ verifyFormat("#define a 3\n"
+ "#define bbbb 4\n"
+ "#define ccc (5)",
+ Style);
+
+ verifyFormat("#define f(x) (x * x)\n"
+ "#define fff(x, y, z) (x * y + z)\n"
+ "#define ffff(x, y) (x - y)",
+ Style);
+
+ verifyFormat("#define foo(x, y) (x + y)\n"
+ "#define bar (5, 6)(2 + 2)",
+ Style);
+
+ verifyFormat("#define a 3\n"
+ "#define bbbb 4\n"
+ "#define ccc (5)\n"
+ "#define f(x) (x * x)\n"
+ "#define fff(x, y, z) (x * y + z)\n"
+ "#define ffff(x, y) (x - y)",
+ Style);
+
+ Style.AlignConsecutiveMacros = true;
+ verifyFormat("#define a 3\n"
+ "#define bbbb 4\n"
+ "#define ccc (5)",
+ Style);
+
+ verifyFormat("#define f(x) (x * x)\n"
+ "#define fff(x, y, z) (x * y + z)\n"
+ "#define ffff(x, y) (x - y)",
+ Style);
+
+ verifyFormat("#define foo(x, y) (x + y)\n"
+ "#define bar (5, 6)(2 + 2)",
+ Style);
+
+ verifyFormat("#define a 3\n"
+ "#define bbbb 4\n"
+ "#define ccc (5)\n"
+ "#define f(x) (x * x)\n"
+ "#define fff(x, y, z) (x * y + z)\n"
+ "#define ffff(x, y) (x - y)",
+ Style);
+
+ verifyFormat("#define a 5\n"
+ "#define foo(x, y) (x + y)\n"
+ "#define CCC (6)\n"
+ "auto lambda = []() {\n"
+ " auto ii = 0;\n"
+ " float j = 0;\n"
+ " return 0;\n"
+ "};\n"
+ "int i = 0;\n"
+ "float i2 = 0;\n"
+ "auto v = type{\n"
+ " i = 1, //\n"
+ " (i = 2), //\n"
+ " i = 3 //\n"
+ "};",
+ Style);
+
+ Style.AlignConsecutiveMacros = false;
+ Style.ColumnLimit = 20;
+
+ verifyFormat("#define a \\\n"
+ " \"aabbbbbbbbbbbb\"\n"
+ "#define D \\\n"
+ " \"aabbbbbbbbbbbb\" \\\n"
+ " \"ccddeeeeeeeee\"\n"
+ "#define B \\\n"
+ " \"QQQQQQQQQQQQQ\" \\\n"
+ " \"FFFFFFFFFFFFF\" \\\n"
+ " \"LLLLLLLL\"\n",
+ Style);
+
+ Style.AlignConsecutiveMacros = true;
+ verifyFormat("#define a \\\n"
+ " \"aabbbbbbbbbbbb\"\n"
+ "#define D \\\n"
+ " \"aabbbbbbbbbbbb\" \\\n"
+ " \"ccddeeeeeeeee\"\n"
+ "#define B \\\n"
+ " \"QQQQQQQQQQQQQ\" \\\n"
+ " \"FFFFFFFFFFFFF\" \\\n"
+ " \"LLLLLLLL\"\n",
+ Style);
+}
+
+TEST_F(FormatTest, AlignConsecutiveAssignments) {
+ FormatStyle Alignment = getLLVMStyle();
+ Alignment.AlignConsecutiveMacros = true;
+ Alignment.AlignConsecutiveAssignments = false;
+ verifyFormat("int a = 5;\n"
+ "int oneTwoThree = 123;",
+ Alignment);
+ verifyFormat("int a = 5;\n"
+ "int oneTwoThree = 123;",
+ Alignment);
+
+ Alignment.AlignConsecutiveAssignments = true;
+ verifyFormat("int a = 5;\n"
+ "int oneTwoThree = 123;",
+ Alignment);
+ verifyFormat("int a = method();\n"
+ "int oneTwoThree = 133;",
+ Alignment);
+ verifyFormat("a &= 5;\n"
+ "bcd *= 5;\n"
+ "ghtyf += 5;\n"
+ "dvfvdb -= 5;\n"
+ "a /= 5;\n"
+ "vdsvsv %= 5;\n"
+ "sfdbddfbdfbb ^= 5;\n"
+ "dvsdsv |= 5;\n"
+ "int dsvvdvsdvvv = 123;",
+ Alignment);
+ verifyFormat("int i = 1, j = 10;\n"
+ "something = 2000;",
+ Alignment);
+ verifyFormat("something = 2000;\n"
+ "int i = 1, j = 10;\n",
+ Alignment);
+ verifyFormat("something = 2000;\n"
+ "another = 911;\n"
+ "int i = 1, j = 10;\n"
+ "oneMore = 1;\n"
+ "i = 2;",
+ Alignment);
+ verifyFormat("int a = 5;\n"
+ "int one = 1;\n"
+ "method();\n"
+ "int oneTwoThree = 123;\n"
+ "int oneTwo = 12;",
+ Alignment);
+ verifyFormat("int oneTwoThree = 123;\n"
+ "int oneTwo = 12;\n"
+ "method();\n",
+ Alignment);
+ verifyFormat("int oneTwoThree = 123; // comment\n"
+ "int oneTwo = 12; // comment",
+ Alignment);
+ EXPECT_EQ("int a = 5;\n"
+ "\n"
+ "int oneTwoThree = 123;",
+ format("int a = 5;\n"
+ "\n"
+ "int oneTwoThree= 123;",
+ Alignment));
+ EXPECT_EQ("int a = 5;\n"
+ "int one = 1;\n"
+ "\n"
+ "int oneTwoThree = 123;",
+ format("int a = 5;\n"
+ "int one = 1;\n"
+ "\n"
+ "int oneTwoThree = 123;",
+ Alignment));
+ EXPECT_EQ("int a = 5;\n"
+ "int one = 1;\n"
+ "\n"
+ "int oneTwoThree = 123;\n"
+ "int oneTwo = 12;",
+ format("int a = 5;\n"
+ "int one = 1;\n"
+ "\n"
+ "int oneTwoThree = 123;\n"
+ "int oneTwo = 12;",
+ Alignment));
+ Alignment.AlignEscapedNewlines = FormatStyle::ENAS_DontAlign;
+ verifyFormat("#define A \\\n"
+ " int aaaa = 12; \\\n"
+ " int b = 23; \\\n"
+ " int ccc = 234; \\\n"
+ " int dddddddddd = 2345;",
+ Alignment);
+ Alignment.AlignEscapedNewlines = FormatStyle::ENAS_Left;
+ verifyFormat("#define A \\\n"
+ " int aaaa = 12; \\\n"
+ " int b = 23; \\\n"
+ " int ccc = 234; \\\n"
+ " int dddddddddd = 2345;",
+ Alignment);
+ Alignment.AlignEscapedNewlines = FormatStyle::ENAS_Right;
+ verifyFormat("#define A "
+ " \\\n"
+ " int aaaa = 12; "
+ " \\\n"
+ " int b = 23; "
+ " \\\n"
+ " int ccc = 234; "
+ " \\\n"
+ " int dddddddddd = 2345;",
+ Alignment);
+ verifyFormat("void SomeFunction(int parameter = 1, int i = 2, int j = 3, int "
+ "k = 4, int l = 5,\n"
+ " int m = 6) {\n"
+ " int j = 10;\n"
+ " otherThing = 1;\n"
+ "}",
+ Alignment);
+ verifyFormat("void SomeFunction(int parameter = 0) {\n"
+ " int i = 1;\n"
+ " int j = 2;\n"
+ " int big = 10000;\n"
+ "}",
+ Alignment);
+ verifyFormat("class C {\n"
+ "public:\n"
+ " int i = 1;\n"
+ " virtual void f() = 0;\n"
+ "};",
+ Alignment);
+ verifyFormat("int i = 1;\n"
+ "if (SomeType t = getSomething()) {\n"
+ "}\n"
+ "int j = 2;\n"
+ "int big = 10000;",
+ Alignment);
+ verifyFormat("int j = 7;\n"
+ "for (int k = 0; k < N; ++k) {\n"
+ "}\n"
+ "int j = 2;\n"
+ "int big = 10000;\n"
+ "}",
+ Alignment);
+ Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_All;
+ verifyFormat("int i = 1;\n"
+ "LooooooooooongType loooooooooooooooooooooongVariable\n"
+ " = someLooooooooooooooooongFunction();\n"
+ "int j = 2;",
+ Alignment);
+ Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_None;
+ verifyFormat("int i = 1;\n"
+ "LooooooooooongType loooooooooooooooooooooongVariable =\n"
+ " someLooooooooooooooooongFunction();\n"
+ "int j = 2;",
+ Alignment);
+
+ verifyFormat("auto lambda = []() {\n"
+ " auto i = 0;\n"
+ " return 0;\n"
+ "};\n"
+ "int i = 0;\n"
+ "auto v = type{\n"
+ " i = 1, //\n"
+ " (i = 2), //\n"
+ " i = 3 //\n"
+ "};",
+ Alignment);
+
+ verifyFormat(
+ "int i = 1;\n"
+ "SomeType a = SomeFunction(looooooooooooooooooooooongParameterA,\n"
+ " loooooooooooooooooooooongParameterB);\n"
+ "int j = 2;",
+ Alignment);
+
+ verifyFormat("template <typename T, typename T_0 = very_long_type_name_0,\n"
+ " typename B = very_long_type_name_1,\n"
+ " typename T_2 = very_long_type_name_2>\n"
+ "auto foo() {}\n",
+ Alignment);
+ verifyFormat("int a, b = 1;\n"
+ "int c = 2;\n"
+ "int dd = 3;\n",
+ Alignment);
+ verifyFormat("int aa = ((1 > 2) ? 3 : 4);\n"
+ "float b[1][] = {{3.f}};\n",
+ Alignment);
+ verifyFormat("for (int i = 0; i < 1; i++)\n"
+ " int x = 1;\n",
+ Alignment);
+ verifyFormat("for (i = 0; i < 1; i++)\n"
+ " x = 1;\n"
+ "y = 1;\n",
+ Alignment);
+}
+
+TEST_F(FormatTest, AlignConsecutiveDeclarations) {
+ FormatStyle Alignment = getLLVMStyle();
+ Alignment.AlignConsecutiveMacros = true;
+ Alignment.AlignConsecutiveDeclarations = false;
+ verifyFormat("float const a = 5;\n"
+ "int oneTwoThree = 123;",
+ Alignment);
+ verifyFormat("int a = 5;\n"
+ "float const oneTwoThree = 123;",
+ Alignment);
+
+ Alignment.AlignConsecutiveDeclarations = true;
+ verifyFormat("float const a = 5;\n"
+ "int oneTwoThree = 123;",
+ Alignment);
+ verifyFormat("int a = method();\n"
+ "float const oneTwoThree = 133;",
+ Alignment);
+ verifyFormat("int i = 1, j = 10;\n"
+ "something = 2000;",
+ Alignment);
+ verifyFormat("something = 2000;\n"
+ "int i = 1, j = 10;\n",
+ Alignment);
+ verifyFormat("float something = 2000;\n"
+ "double another = 911;\n"
+ "int i = 1, j = 10;\n"
+ "const int *oneMore = 1;\n"
+ "unsigned i = 2;",
+ Alignment);
+ verifyFormat("float a = 5;\n"
+ "int one = 1;\n"
+ "method();\n"
+ "const double oneTwoThree = 123;\n"
+ "const unsigned int oneTwo = 12;",
+ Alignment);
+ verifyFormat("int oneTwoThree{0}; // comment\n"
+ "unsigned oneTwo; // comment",
+ Alignment);
+ EXPECT_EQ("float const a = 5;\n"
+ "\n"
+ "int oneTwoThree = 123;",
+ format("float const a = 5;\n"
+ "\n"
+ "int oneTwoThree= 123;",
+ Alignment));
+ EXPECT_EQ("float a = 5;\n"
+ "int one = 1;\n"
+ "\n"
+ "unsigned oneTwoThree = 123;",
+ format("float a = 5;\n"
+ "int one = 1;\n"
+ "\n"
+ "unsigned oneTwoThree = 123;",
+ Alignment));
+ EXPECT_EQ("float a = 5;\n"
+ "int one = 1;\n"
+ "\n"
+ "unsigned oneTwoThree = 123;\n"
+ "int oneTwo = 12;",
+ format("float a = 5;\n"
+ "int one = 1;\n"
+ "\n"
+ "unsigned oneTwoThree = 123;\n"
+ "int oneTwo = 12;",
+ Alignment));
+ // Function prototype alignment
+ verifyFormat("int a();\n"
+ "double b();",
+ Alignment);
+ verifyFormat("int a(int x);\n"
+ "double b();",
+ Alignment);
+ unsigned OldColumnLimit = Alignment.ColumnLimit;
+ // We need to set ColumnLimit to zero, in order to stress nested alignments,
+ // otherwise the function parameters will be re-flowed onto a single line.
+ Alignment.ColumnLimit = 0;
+ EXPECT_EQ("int a(int x,\n"
+ " float y);\n"
+ "double b(int x,\n"
+ " double y);",
+ format("int a(int x,\n"
+ " float y);\n"
+ "double b(int x,\n"
+ " double y);",
+ Alignment));
+ // This ensures that function parameters of function declarations are
+ // correctly indented when their owning functions are indented.
+ // The failure case here is for 'double y' to not be indented enough.
+ EXPECT_EQ("double a(int x);\n"
+ "int b(int y,\n"
+ " double z);",
+ format("double a(int x);\n"
+ "int b(int y,\n"
+ " double z);",
+ Alignment));
+ // Set ColumnLimit low so that we induce wrapping immediately after
+ // the function name and opening paren.
+ Alignment.ColumnLimit = 13;
+ verifyFormat("int function(\n"
+ " int x,\n"
+ " bool y);",
+ Alignment);
+ Alignment.ColumnLimit = OldColumnLimit;
+ // Ensure function pointers don't screw up recursive alignment
+ verifyFormat("int a(int x, void (*fp)(int y));\n"
+ "double b();",
+ Alignment);
+ Alignment.AlignConsecutiveAssignments = true;
+ // Ensure recursive alignment is broken by function braces, so that the
+ // "a = 1" does not align with subsequent assignments inside the function
+ // body.
+ verifyFormat("int func(int a = 1) {\n"
+ " int b = 2;\n"
+ " int cc = 3;\n"
+ "}",
+ Alignment);
+ verifyFormat("float something = 2000;\n"
+ "double another = 911;\n"
+ "int i = 1, j = 10;\n"
+ "const int *oneMore = 1;\n"
+ "unsigned i = 2;",
+ Alignment);
+ verifyFormat("int oneTwoThree = {0}; // comment\n"
+ "unsigned oneTwo = 0; // comment",
+ Alignment);
+ // Make sure that scope is correctly tracked, in the absence of braces
+ verifyFormat("for (int i = 0; i < n; i++)\n"
+ " j = i;\n"
+ "double x = 1;\n",
+ Alignment);
+ verifyFormat("if (int i = 0)\n"
+ " j = i;\n"
+ "double x = 1;\n",
+ Alignment);
+ // Ensure operator[] and operator() are comprehended
+ verifyFormat("struct test {\n"
+ " long long int foo();\n"
+ " int operator[](int a);\n"
+ " double bar();\n"
+ "};\n",
+ Alignment);
+ verifyFormat("struct test {\n"
+ " long long int foo();\n"
+ " int operator()(int a);\n"
+ " double bar();\n"
+ "};\n",
+ Alignment);
+ EXPECT_EQ("void SomeFunction(int parameter = 0) {\n"
+ " int const i = 1;\n"
+ " int * j = 2;\n"
+ " int big = 10000;\n"
+ "\n"
+ " unsigned oneTwoThree = 123;\n"
+ " int oneTwo = 12;\n"
+ " method();\n"
+ " float k = 2;\n"
+ " int ll = 10000;\n"
+ "}",
+ format("void SomeFunction(int parameter= 0) {\n"
+ " int const i= 1;\n"
+ " int *j=2;\n"
+ " int big = 10000;\n"
+ "\n"
+ "unsigned oneTwoThree =123;\n"
+ "int oneTwo = 12;\n"
+ " method();\n"
+ "float k= 2;\n"
+ "int ll=10000;\n"
+ "}",
+ Alignment));
+ Alignment.AlignConsecutiveAssignments = false;
+ Alignment.AlignEscapedNewlines = FormatStyle::ENAS_DontAlign;
+ verifyFormat("#define A \\\n"
+ " int aaaa = 12; \\\n"
+ " float b = 23; \\\n"
+ " const int ccc = 234; \\\n"
+ " unsigned dddddddddd = 2345;",
+ Alignment);
+ Alignment.AlignEscapedNewlines = FormatStyle::ENAS_Left;
+ verifyFormat("#define A \\\n"
+ " int aaaa = 12; \\\n"
+ " float b = 23; \\\n"
+ " const int ccc = 234; \\\n"
+ " unsigned dddddddddd = 2345;",
+ Alignment);
+ Alignment.AlignEscapedNewlines = FormatStyle::ENAS_Right;
+ Alignment.ColumnLimit = 30;
+ verifyFormat("#define A \\\n"
+ " int aaaa = 12; \\\n"
+ " float b = 23; \\\n"
+ " const int ccc = 234; \\\n"
+ " int dddddddddd = 2345;",
+ Alignment);
+ Alignment.ColumnLimit = 80;
+ verifyFormat("void SomeFunction(int parameter = 1, int i = 2, int j = 3, int "
+ "k = 4, int l = 5,\n"
+ " int m = 6) {\n"
+ " const int j = 10;\n"
+ " otherThing = 1;\n"
+ "}",
+ Alignment);
+ verifyFormat("void SomeFunction(int parameter = 0) {\n"
+ " int const i = 1;\n"
+ " int * j = 2;\n"
+ " int big = 10000;\n"
+ "}",
+ Alignment);
+ verifyFormat("class C {\n"
+ "public:\n"
+ " int i = 1;\n"
+ " virtual void f() = 0;\n"
+ "};",
+ Alignment);
+ verifyFormat("float i = 1;\n"
+ "if (SomeType t = getSomething()) {\n"
+ "}\n"
+ "const unsigned j = 2;\n"
+ "int big = 10000;",
+ Alignment);
+ verifyFormat("float j = 7;\n"
+ "for (int k = 0; k < N; ++k) {\n"
+ "}\n"
+ "unsigned j = 2;\n"
+ "int big = 10000;\n"
+ "}",
+ Alignment);
+ Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_All;
+ verifyFormat("float i = 1;\n"
+ "LooooooooooongType loooooooooooooooooooooongVariable\n"
+ " = someLooooooooooooooooongFunction();\n"
+ "int j = 2;",
+ Alignment);
+ Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_None;
+ verifyFormat("int i = 1;\n"
+ "LooooooooooongType loooooooooooooooooooooongVariable =\n"
+ " someLooooooooooooooooongFunction();\n"
+ "int j = 2;",
+ Alignment);
+
+ Alignment.AlignConsecutiveAssignments = true;
+ verifyFormat("auto lambda = []() {\n"
+ " auto ii = 0;\n"
+ " float j = 0;\n"
+ " return 0;\n"
+ "};\n"
+ "int i = 0;\n"
+ "float i2 = 0;\n"
+ "auto v = type{\n"
+ " i = 1, //\n"
+ " (i = 2), //\n"
+ " i = 3 //\n"
+ "};",
+ Alignment);
+ Alignment.AlignConsecutiveAssignments = false;
+
+ verifyFormat(
+ "int i = 1;\n"
+ "SomeType a = SomeFunction(looooooooooooooooooooooongParameterA,\n"
+ " loooooooooooooooooooooongParameterB);\n"
+ "int j = 2;",
+ Alignment);
+
+ // Test interactions with ColumnLimit and AlignConsecutiveAssignments:
+ // We expect declarations and assignments to align, as long as it doesn't
+ // exceed the column limit, starting a new alignment sequence whenever it
+ // happens.
+ Alignment.AlignConsecutiveAssignments = true;
+ Alignment.ColumnLimit = 30;
+ verifyFormat("float ii = 1;\n"
+ "unsigned j = 2;\n"
+ "int someVerylongVariable = 1;\n"
+ "AnotherLongType ll = 123456;\n"
+ "VeryVeryLongType k = 2;\n"
+ "int myvar = 1;",
+ Alignment);
+ Alignment.ColumnLimit = 80;
+ Alignment.AlignConsecutiveAssignments = false;
+
+ verifyFormat(
+ "template <typename LongTemplate, typename VeryLongTemplateTypeName,\n"
+ " typename LongType, typename B>\n"
+ "auto foo() {}\n",
+ Alignment);
+ verifyFormat("float a, b = 1;\n"
+ "int c = 2;\n"
+ "int dd = 3;\n",
+ Alignment);
+ verifyFormat("int aa = ((1 > 2) ? 3 : 4);\n"
+ "float b[1][] = {{3.f}};\n",
+ Alignment);
+ Alignment.AlignConsecutiveAssignments = true;
+ verifyFormat("float a, b = 1;\n"
+ "int c = 2;\n"
+ "int dd = 3;\n",
+ Alignment);
+ verifyFormat("int aa = ((1 > 2) ? 3 : 4);\n"
+ "float b[1][] = {{3.f}};\n",
+ Alignment);
+ Alignment.AlignConsecutiveAssignments = false;
+
+ Alignment.ColumnLimit = 30;
+ Alignment.BinPackParameters = false;
+ verifyFormat("void foo(float a,\n"
+ " float b,\n"
+ " int c,\n"
+ " uint32_t *d) {\n"
+ " int * e = 0;\n"
+ " float f = 0;\n"
+ " double g = 0;\n"
+ "}\n"
+ "void bar(ino_t a,\n"
+ " int b,\n"
+ " uint32_t *c,\n"
+ " bool d) {}\n",
+ Alignment);
+ Alignment.BinPackParameters = true;
+ Alignment.ColumnLimit = 80;
+
+ // Bug 33507
+ Alignment.PointerAlignment = FormatStyle::PAS_Middle;
+ verifyFormat(
+ "auto found = range::find_if(vsProducts, [&](auto * aProduct) {\n"
+ " static const Version verVs2017;\n"
+ " return true;\n"
+ "});\n",
+ Alignment);
+ Alignment.PointerAlignment = FormatStyle::PAS_Right;
+
+ // See llvm.org/PR35641
+ Alignment.AlignConsecutiveDeclarations = true;
+ verifyFormat("int func() { //\n"
+ " int b;\n"
+ " unsigned c;\n"
+ "}",
+ Alignment);
+
+ // See PR37175
+ FormatStyle Style = getMozillaStyle();
+ Style.AlignConsecutiveDeclarations = true;
+ EXPECT_EQ("DECOR1 /**/ int8_t /**/ DECOR2 /**/\n"
+ "foo(int a);",
+ format("DECOR1 /**/ int8_t /**/ DECOR2 /**/ foo (int a);", Style));
+}
+
+TEST_F(FormatTest, LinuxBraceBreaking) {
+ FormatStyle LinuxBraceStyle = getLLVMStyle();
+ LinuxBraceStyle.BreakBeforeBraces = FormatStyle::BS_Linux;
+ verifyFormat("namespace a\n"
+ "{\n"
+ "class A\n"
+ "{\n"
+ " void f()\n"
+ " {\n"
+ " if (true) {\n"
+ " a();\n"
+ " b();\n"
+ " } else {\n"
+ " a();\n"
+ " }\n"
+ " }\n"
+ " void g() { return; }\n"
+ "};\n"
+ "struct B {\n"
+ " int x;\n"
+ "};\n"
+ "} // namespace a\n",
+ LinuxBraceStyle);
+ verifyFormat("enum X {\n"
+ " Y = 0,\n"
+ "}\n",
+ LinuxBraceStyle);
+ verifyFormat("struct S {\n"
+ " int Type;\n"
+ " union {\n"
+ " int x;\n"
+ " double y;\n"
+ " } Value;\n"
+ " class C\n"
+ " {\n"
+ " MyFavoriteType Value;\n"
+ " } Class;\n"
+ "}\n",
+ LinuxBraceStyle);
+}
+
+TEST_F(FormatTest, MozillaBraceBreaking) {
+ FormatStyle MozillaBraceStyle = getLLVMStyle();
+ MozillaBraceStyle.BreakBeforeBraces = FormatStyle::BS_Mozilla;
+ MozillaBraceStyle.FixNamespaceComments = false;
+ verifyFormat("namespace a {\n"
+ "class A\n"
+ "{\n"
+ " void f()\n"
+ " {\n"
+ " if (true) {\n"
+ " a();\n"
+ " b();\n"
+ " }\n"
+ " }\n"
+ " void g() { return; }\n"
+ "};\n"
+ "enum E\n"
+ "{\n"
+ " A,\n"
+ " // foo\n"
+ " B,\n"
+ " C\n"
+ "};\n"
+ "struct B\n"
+ "{\n"
+ " int x;\n"
+ "};\n"
+ "}\n",
+ MozillaBraceStyle);
+ verifyFormat("struct S\n"
+ "{\n"
+ " int Type;\n"
+ " union\n"
+ " {\n"
+ " int x;\n"
+ " double y;\n"
+ " } Value;\n"
+ " class C\n"
+ " {\n"
+ " MyFavoriteType Value;\n"
+ " } Class;\n"
+ "}\n",
+ MozillaBraceStyle);
+}
+
+TEST_F(FormatTest, StroustrupBraceBreaking) {
+ FormatStyle StroustrupBraceStyle = getLLVMStyle();
+ StroustrupBraceStyle.BreakBeforeBraces = FormatStyle::BS_Stroustrup;
+ verifyFormat("namespace a {\n"
+ "class A {\n"
+ " void f()\n"
+ " {\n"
+ " if (true) {\n"
+ " a();\n"
+ " b();\n"
+ " }\n"
+ " }\n"
+ " void g() { return; }\n"
+ "};\n"
+ "struct B {\n"
+ " int x;\n"
+ "};\n"
+ "} // namespace a\n",
+ StroustrupBraceStyle);
+
+ verifyFormat("void foo()\n"
+ "{\n"
+ " if (a) {\n"
+ " a();\n"
+ " }\n"
+ " else {\n"
+ " b();\n"
+ " }\n"
+ "}\n",
+ StroustrupBraceStyle);
+
+ verifyFormat("#ifdef _DEBUG\n"
+ "int foo(int i = 0)\n"
+ "#else\n"
+ "int foo(int i = 5)\n"
+ "#endif\n"
+ "{\n"
+ " return i;\n"
+ "}",
+ StroustrupBraceStyle);
+
+ verifyFormat("void foo() {}\n"
+ "void bar()\n"
+ "#ifdef _DEBUG\n"
+ "{\n"
+ " foo();\n"
+ "}\n"
+ "#else\n"
+ "{\n"
+ "}\n"
+ "#endif",
+ StroustrupBraceStyle);
+
+ verifyFormat("void foobar() { int i = 5; }\n"
+ "#ifdef _DEBUG\n"
+ "void bar() {}\n"
+ "#else\n"
+ "void bar() { foobar(); }\n"
+ "#endif",
+ StroustrupBraceStyle);
+}
+
+TEST_F(FormatTest, AllmanBraceBreaking) {
+ FormatStyle AllmanBraceStyle = getLLVMStyle();
+ AllmanBraceStyle.BreakBeforeBraces = FormatStyle::BS_Allman;
+
+ EXPECT_EQ("namespace a\n"
+ "{\n"
+ "void f();\n"
+ "void g();\n"
+ "} // namespace a\n",
+ format("namespace a\n"
+ "{\n"
+ "void f();\n"
+ "void g();\n"
+ "}\n",
+ AllmanBraceStyle));
+
+ verifyFormat("namespace a\n"
+ "{\n"
+ "class A\n"
+ "{\n"
+ " void f()\n"
+ " {\n"
+ " if (true)\n"
+ " {\n"
+ " a();\n"
+ " b();\n"
+ " }\n"
+ " }\n"
+ " void g() { return; }\n"
+ "};\n"
+ "struct B\n"
+ "{\n"
+ " int x;\n"
+ "};\n"
+ "union C\n"
+ "{\n"
+ "};\n"
+ "} // namespace a",
+ AllmanBraceStyle);
+
+ verifyFormat("void f()\n"
+ "{\n"
+ " if (true)\n"
+ " {\n"
+ " a();\n"
+ " }\n"
+ " else if (false)\n"
+ " {\n"
+ " b();\n"
+ " }\n"
+ " else\n"
+ " {\n"
+ " c();\n"
+ " }\n"
+ "}\n",
+ AllmanBraceStyle);
+
+ verifyFormat("void f()\n"
+ "{\n"
+ " for (int i = 0; i < 10; ++i)\n"
+ " {\n"
+ " a();\n"
+ " }\n"
+ " while (false)\n"
+ " {\n"
+ " b();\n"
+ " }\n"
+ " do\n"
+ " {\n"
+ " c();\n"
+ " } while (false)\n"
+ "}\n",
+ AllmanBraceStyle);
+
+ verifyFormat("void f(int a)\n"
+ "{\n"
+ " switch (a)\n"
+ " {\n"
+ " case 0:\n"
+ " break;\n"
+ " case 1:\n"
+ " {\n"
+ " break;\n"
+ " }\n"
+ " case 2:\n"
+ " {\n"
+ " }\n"
+ " break;\n"
+ " default:\n"
+ " break;\n"
+ " }\n"
+ "}\n",
+ AllmanBraceStyle);
+
+ verifyFormat("enum X\n"
+ "{\n"
+ " Y = 0,\n"
+ "}\n",
+ AllmanBraceStyle);
+ verifyFormat("enum X\n"
+ "{\n"
+ " Y = 0\n"
+ "}\n",
+ AllmanBraceStyle);
+
+ verifyFormat("@interface BSApplicationController ()\n"
+ "{\n"
+ "@private\n"
+ " id _extraIvar;\n"
+ "}\n"
+ "@end\n",
+ AllmanBraceStyle);
+
+ verifyFormat("#ifdef _DEBUG\n"
+ "int foo(int i = 0)\n"
+ "#else\n"
+ "int foo(int i = 5)\n"
+ "#endif\n"
+ "{\n"
+ " return i;\n"
+ "}",
+ AllmanBraceStyle);
+
+ verifyFormat("void foo() {}\n"
+ "void bar()\n"
+ "#ifdef _DEBUG\n"
+ "{\n"
+ " foo();\n"
+ "}\n"
+ "#else\n"
+ "{\n"
+ "}\n"
+ "#endif",
+ AllmanBraceStyle);
+
+ verifyFormat("void foobar() { int i = 5; }\n"
+ "#ifdef _DEBUG\n"
+ "void bar() {}\n"
+ "#else\n"
+ "void bar() { foobar(); }\n"
+ "#endif",
+ AllmanBraceStyle);
+
+ // This shouldn't affect ObjC blocks..
+ verifyFormat("[self doSomeThingWithACompletionHandler:^{\n"
+ " // ...\n"
+ " int i;\n"
+ "}];",
+ AllmanBraceStyle);
+ verifyFormat("void (^block)(void) = ^{\n"
+ " // ...\n"
+ " int i;\n"
+ "};",
+ AllmanBraceStyle);
+ // .. or dict literals.
+ verifyFormat("void f()\n"
+ "{\n"
+ " // ...\n"
+ " [object someMethod:@{@\"a\" : @\"b\"}];\n"
+ "}",
+ AllmanBraceStyle);
+ verifyFormat("void f()\n"
+ "{\n"
+ " // ...\n"
+ " [object someMethod:@{a : @\"b\"}];\n"
+ "}",
+ AllmanBraceStyle);
+ verifyFormat("int f()\n"
+ "{ // comment\n"
+ " return 42;\n"
+ "}",
+ AllmanBraceStyle);
+
+ AllmanBraceStyle.ColumnLimit = 19;
+ verifyFormat("void f() { int i; }", AllmanBraceStyle);
+ AllmanBraceStyle.ColumnLimit = 18;
+ verifyFormat("void f()\n"
+ "{\n"
+ " int i;\n"
+ "}",
+ AllmanBraceStyle);
+ AllmanBraceStyle.ColumnLimit = 80;
+
+ FormatStyle BreakBeforeBraceShortIfs = AllmanBraceStyle;
+ BreakBeforeBraceShortIfs.AllowShortIfStatementsOnASingleLine =
+ FormatStyle::SIS_WithoutElse;
+ BreakBeforeBraceShortIfs.AllowShortLoopsOnASingleLine = true;
+ verifyFormat("void f(bool b)\n"
+ "{\n"
+ " if (b)\n"
+ " {\n"
+ " return;\n"
+ " }\n"
+ "}\n",
+ BreakBeforeBraceShortIfs);
+ verifyFormat("void f(bool b)\n"
+ "{\n"
+ " if constexpr (b)\n"
+ " {\n"
+ " return;\n"
+ " }\n"
+ "}\n",
+ BreakBeforeBraceShortIfs);
+ verifyFormat("void f(bool b)\n"
+ "{\n"
+ " if CONSTEXPR (b)\n"
+ " {\n"
+ " return;\n"
+ " }\n"
+ "}\n",
+ BreakBeforeBraceShortIfs);
+ verifyFormat("void f(bool b)\n"
+ "{\n"
+ " if (b) return;\n"
+ "}\n",
+ BreakBeforeBraceShortIfs);
+ verifyFormat("void f(bool b)\n"
+ "{\n"
+ " if constexpr (b) return;\n"
+ "}\n",
+ BreakBeforeBraceShortIfs);
+ verifyFormat("void f(bool b)\n"
+ "{\n"
+ " if CONSTEXPR (b) return;\n"
+ "}\n",
+ BreakBeforeBraceShortIfs);
+ verifyFormat("void f(bool b)\n"
+ "{\n"
+ " while (b)\n"
+ " {\n"
+ " return;\n"
+ " }\n"
+ "}\n",
+ BreakBeforeBraceShortIfs);
+}
+
+TEST_F(FormatTest, WhitesmithsBraceBreaking) {
+ FormatStyle WhitesmithsBraceStyle = getLLVMStyle();
+ WhitesmithsBraceStyle.BreakBeforeBraces = FormatStyle::BS_Whitesmiths;
+
+ // Make a few changes to the style for testing purposes
+ WhitesmithsBraceStyle.AllowShortFunctionsOnASingleLine =
+ FormatStyle::SFS_Empty;
+ WhitesmithsBraceStyle.AllowShortLambdasOnASingleLine = FormatStyle::SLS_None;
+ WhitesmithsBraceStyle.ColumnLimit = 0;
+
+ // FIXME: this test case can't decide whether there should be a blank line
+ // after the ~D() line or not. It adds one if one doesn't exist in the test
+ // and it removes the line if one exists.
+ /*
+ verifyFormat("class A;\n"
+ "namespace B\n"
+ " {\n"
+ "class C;\n"
+ "// Comment\n"
+ "class D\n"
+ " {\n"
+ "public:\n"
+ " D();\n"
+ " ~D() {}\n"
+ "private:\n"
+ " enum E\n"
+ " {\n"
+ " F\n"
+ " }\n"
+ " };\n"
+ " } // namespace B\n",
+ WhitesmithsBraceStyle);
+ */
+
+ verifyFormat("namespace a\n"
+ " {\n"
+ "class A\n"
+ " {\n"
+ " void f()\n"
+ " {\n"
+ " if (true)\n"
+ " {\n"
+ " a();\n"
+ " b();\n"
+ " }\n"
+ " }\n"
+ " void g()\n"
+ " {\n"
+ " return;\n"
+ " }\n"
+ " };\n"
+ "struct B\n"
+ " {\n"
+ " int x;\n"
+ " };\n"
+ " } // namespace a",
+ WhitesmithsBraceStyle);
+
+ verifyFormat("void f()\n"
+ " {\n"
+ " if (true)\n"
+ " {\n"
+ " a();\n"
+ " }\n"
+ " else if (false)\n"
+ " {\n"
+ " b();\n"
+ " }\n"
+ " else\n"
+ " {\n"
+ " c();\n"
+ " }\n"
+ " }\n",
+ WhitesmithsBraceStyle);
+
+ verifyFormat("void f()\n"
+ " {\n"
+ " for (int i = 0; i < 10; ++i)\n"
+ " {\n"
+ " a();\n"
+ " }\n"
+ " while (false)\n"
+ " {\n"
+ " b();\n"
+ " }\n"
+ " do\n"
+ " {\n"
+ " c();\n"
+ " } while (false)\n"
+ " }\n",
+ WhitesmithsBraceStyle);
+
+ // FIXME: the block and the break under case 2 in this test don't get indented
+ // correctly
+ /*
+ verifyFormat("void switchTest1(int a)\n"
+ " {\n"
+ " switch (a)\n"
+ " {\n"
+ " case 2:\n"
+ " {\n"
+ " }\n"
+ " break;\n"
+ " }\n"
+ " }\n",
+ WhitesmithsBraceStyle);
+ */
+
+ // FIXME: the block and the break under case 2 in this test don't get indented
+ // correctly
+ /*
+ verifyFormat("void switchTest2(int a)\n"
+ " {\n"
+ " switch (a)\n"
+ " {\n"
+ " case 0:\n"
+ " break;\n"
+ " case 1:\n"
+ " {\n"
+ " break;\n"
+ " }\n"
+ " case 2:\n"
+ " {\n"
+ " }\n"
+ " break;\n"
+ " default:\n"
+ " break;\n"
+ " }\n"
+ " }\n",
+ WhitesmithsBraceStyle);
+ */
+
+ verifyFormat("enum X\n"
+ " {\n"
+ " Y = 0, // testing\n"
+ " }\n",
+ WhitesmithsBraceStyle);
+
+ verifyFormat("enum X\n"
+ " {\n"
+ " Y = 0\n"
+ " }\n",
+ WhitesmithsBraceStyle);
+ verifyFormat("enum X\n"
+ " {\n"
+ " Y = 0,\n"
+ " Z = 1\n"
+ " };\n",
+ WhitesmithsBraceStyle);
+
+ verifyFormat("@interface BSApplicationController ()\n"
+ " {\n"
+ "@private\n"
+ " id _extraIvar;\n"
+ " }\n"
+ "@end\n",
+ WhitesmithsBraceStyle);
+
+ verifyFormat("#ifdef _DEBUG\n"
+ "int foo(int i = 0)\n"
+ "#else\n"
+ "int foo(int i = 5)\n"
+ "#endif\n"
+ " {\n"
+ " return i;\n"
+ " }",
+ WhitesmithsBraceStyle);
+
+ verifyFormat("void foo() {}\n"
+ "void bar()\n"
+ "#ifdef _DEBUG\n"
+ " {\n"
+ " foo();\n"
+ " }\n"
+ "#else\n"
+ " {\n"
+ " }\n"
+ "#endif",
+ WhitesmithsBraceStyle);
+
+ verifyFormat("void foobar()\n"
+ " {\n"
+ " int i = 5;\n"
+ " }\n"
+ "#ifdef _DEBUG\n"
+ "void bar()\n"
+ " {\n"
+ " }\n"
+ "#else\n"
+ "void bar()\n"
+ " {\n"
+ " foobar();\n"
+ " }\n"
+ "#endif",
+ WhitesmithsBraceStyle);
+
+ // This shouldn't affect ObjC blocks..
+ verifyFormat("[self doSomeThingWithACompletionHandler:^{\n"
+ " // ...\n"
+ " int i;\n"
+ "}];",
+ WhitesmithsBraceStyle);
+ verifyFormat("void (^block)(void) = ^{\n"
+ " // ...\n"
+ " int i;\n"
+ "};",
+ WhitesmithsBraceStyle);
+ // .. or dict literals.
+ verifyFormat("void f()\n"
+ " {\n"
+ " [object someMethod:@{@\"a\" : @\"b\"}];\n"
+ " }",
+ WhitesmithsBraceStyle);
+
+ verifyFormat("int f()\n"
+ " { // comment\n"
+ " return 42;\n"
+ " }",
+ WhitesmithsBraceStyle);
+
+ FormatStyle BreakBeforeBraceShortIfs = WhitesmithsBraceStyle;
+ BreakBeforeBraceShortIfs.AllowShortIfStatementsOnASingleLine =
+ FormatStyle::SIS_Always;
+ BreakBeforeBraceShortIfs.AllowShortLoopsOnASingleLine = true;
+ verifyFormat("void f(bool b)\n"
+ " {\n"
+ " if (b)\n"
+ " {\n"
+ " return;\n"
+ " }\n"
+ " }\n",
+ BreakBeforeBraceShortIfs);
+ verifyFormat("void f(bool b)\n"
+ " {\n"
+ " if (b) return;\n"
+ " }\n",
+ BreakBeforeBraceShortIfs);
+ verifyFormat("void f(bool b)\n"
+ " {\n"
+ " while (b)\n"
+ " {\n"
+ " return;\n"
+ " }\n"
+ " }\n",
+ BreakBeforeBraceShortIfs);
+}
+
+TEST_F(FormatTest, GNUBraceBreaking) {
+ FormatStyle GNUBraceStyle = getLLVMStyle();
+ GNUBraceStyle.BreakBeforeBraces = FormatStyle::BS_GNU;
+ verifyFormat("namespace a\n"
+ "{\n"
+ "class A\n"
+ "{\n"
+ " void f()\n"
+ " {\n"
+ " int a;\n"
+ " {\n"
+ " int b;\n"
+ " }\n"
+ " if (true)\n"
+ " {\n"
+ " a();\n"
+ " b();\n"
+ " }\n"
+ " }\n"
+ " void g() { return; }\n"
+ "}\n"
+ "} // namespace a",
+ GNUBraceStyle);
+
+ verifyFormat("void f()\n"
+ "{\n"
+ " if (true)\n"
+ " {\n"
+ " a();\n"
+ " }\n"
+ " else if (false)\n"
+ " {\n"
+ " b();\n"
+ " }\n"
+ " else\n"
+ " {\n"
+ " c();\n"
+ " }\n"
+ "}\n",
+ GNUBraceStyle);
+
+ verifyFormat("void f()\n"
+ "{\n"
+ " for (int i = 0; i < 10; ++i)\n"
+ " {\n"
+ " a();\n"
+ " }\n"
+ " while (false)\n"
+ " {\n"
+ " b();\n"
+ " }\n"
+ " do\n"
+ " {\n"
+ " c();\n"
+ " }\n"
+ " while (false);\n"
+ "}\n",
+ GNUBraceStyle);
+
+ verifyFormat("void f(int a)\n"
+ "{\n"
+ " switch (a)\n"
+ " {\n"
+ " case 0:\n"
+ " break;\n"
+ " case 1:\n"
+ " {\n"
+ " break;\n"
+ " }\n"
+ " case 2:\n"
+ " {\n"
+ " }\n"
+ " break;\n"
+ " default:\n"
+ " break;\n"
+ " }\n"
+ "}\n",
+ GNUBraceStyle);
+
+ verifyFormat("enum X\n"
+ "{\n"
+ " Y = 0,\n"
+ "}\n",
+ GNUBraceStyle);
+
+ verifyFormat("@interface BSApplicationController ()\n"
+ "{\n"
+ "@private\n"
+ " id _extraIvar;\n"
+ "}\n"
+ "@end\n",
+ GNUBraceStyle);
+
+ verifyFormat("#ifdef _DEBUG\n"
+ "int foo(int i = 0)\n"
+ "#else\n"
+ "int foo(int i = 5)\n"
+ "#endif\n"
+ "{\n"
+ " return i;\n"
+ "}",
+ GNUBraceStyle);
+
+ verifyFormat("void foo() {}\n"
+ "void bar()\n"
+ "#ifdef _DEBUG\n"
+ "{\n"
+ " foo();\n"
+ "}\n"
+ "#else\n"
+ "{\n"
+ "}\n"
+ "#endif",
+ GNUBraceStyle);
+
+ verifyFormat("void foobar() { int i = 5; }\n"
+ "#ifdef _DEBUG\n"
+ "void bar() {}\n"
+ "#else\n"
+ "void bar() { foobar(); }\n"
+ "#endif",
+ GNUBraceStyle);
+}
+
+TEST_F(FormatTest, WebKitBraceBreaking) {
+ FormatStyle WebKitBraceStyle = getLLVMStyle();
+ WebKitBraceStyle.BreakBeforeBraces = FormatStyle::BS_WebKit;
+ WebKitBraceStyle.FixNamespaceComments = false;
+ verifyFormat("namespace a {\n"
+ "class A {\n"
+ " void f()\n"
+ " {\n"
+ " if (true) {\n"
+ " a();\n"
+ " b();\n"
+ " }\n"
+ " }\n"
+ " void g() { return; }\n"
+ "};\n"
+ "enum E {\n"
+ " A,\n"
+ " // foo\n"
+ " B,\n"
+ " C\n"
+ "};\n"
+ "struct B {\n"
+ " int x;\n"
+ "};\n"
+ "}\n",
+ WebKitBraceStyle);
+ verifyFormat("struct S {\n"
+ " int Type;\n"
+ " union {\n"
+ " int x;\n"
+ " double y;\n"
+ " } Value;\n"
+ " class C {\n"
+ " MyFavoriteType Value;\n"
+ " } Class;\n"
+ "};\n",
+ WebKitBraceStyle);
+}
+
+TEST_F(FormatTest, CatchExceptionReferenceBinding) {
+ verifyFormat("void f() {\n"
+ " try {\n"
+ " } catch (const Exception &e) {\n"
+ " }\n"
+ "}\n",
+ getLLVMStyle());
+}
+
+TEST_F(FormatTest, UnderstandsPragmas) {
+ verifyFormat("#pragma omp reduction(| : var)");
+ verifyFormat("#pragma omp reduction(+ : var)");
+
+ EXPECT_EQ("#pragma mark Any non-hyphenated or hyphenated string "
+ "(including parentheses).",
+ format("#pragma mark Any non-hyphenated or hyphenated string "
+ "(including parentheses)."));
+}
+
+TEST_F(FormatTest, UnderstandPragmaOption) {
+ verifyFormat("#pragma option -C -A");
+
+ EXPECT_EQ("#pragma option -C -A", format("#pragma option -C -A"));
+}
+
+TEST_F(FormatTest, OptimizeBreakPenaltyVsExcess) {
+ FormatStyle Style = getLLVMStyle();
+ Style.ColumnLimit = 20;
+
+ // See PR41213
+ EXPECT_EQ("/*\n"
+ " *\t9012345\n"
+ " * /8901\n"
+ " */",
+ format("/*\n"
+ " *\t9012345 /8901\n"
+ " */",
+ Style));
+ EXPECT_EQ("/*\n"
+ " *345678\n"
+ " *\t/8901\n"
+ " */",
+ format("/*\n"
+ " *345678\t/8901\n"
+ " */",
+ Style));
+
+ verifyFormat("int a; // the\n"
+ " // comment",
+ Style);
+ EXPECT_EQ("int a; /* first line\n"
+ " * second\n"
+ " * line third\n"
+ " * line\n"
+ " */",
+ format("int a; /* first line\n"
+ " * second\n"
+ " * line third\n"
+ " * line\n"
+ " */",
+ Style));
+ EXPECT_EQ("int a; // first line\n"
+ " // second\n"
+ " // line third\n"
+ " // line",
+ format("int a; // first line\n"
+ " // second line\n"
+ " // third line",
+ Style));
+
+ Style.PenaltyExcessCharacter = 90;
+ verifyFormat("int a; // the comment", Style);
+ EXPECT_EQ("int a; // the comment\n"
+ " // aaa",
+ format("int a; // the comment aaa", Style));
+ EXPECT_EQ("int a; /* first line\n"
+ " * second line\n"
+ " * third line\n"
+ " */",
+ format("int a; /* first line\n"
+ " * second line\n"
+ " * third line\n"
+ " */",
+ Style));
+ EXPECT_EQ("int a; // first line\n"
+ " // second line\n"
+ " // third line",
+ format("int a; // first line\n"
+ " // second line\n"
+ " // third line",
+ Style));
+ // FIXME: Investigate why this is not getting the same layout as the test
+ // above.
+ EXPECT_EQ("int a; /* first line\n"
+ " * second line\n"
+ " * third line\n"
+ " */",
+ format("int a; /* first line second line third line"
+ "\n*/",
+ Style));
+
+ EXPECT_EQ("// foo bar baz bazfoo\n"
+ "// foo bar foo bar\n",
+ format("// foo bar baz bazfoo\n"
+ "// foo bar foo bar\n",
+ Style));
+ EXPECT_EQ("// foo bar baz bazfoo\n"
+ "// foo bar foo bar\n",
+ format("// foo bar baz bazfoo\n"
+ "// foo bar foo bar\n",
+ Style));
+
+ // FIXME: Optimally, we'd keep bazfoo on the first line and reflow bar to the
+ // next one.
+ EXPECT_EQ("// foo bar baz bazfoo\n"
+ "// bar foo bar\n",
+ format("// foo bar baz bazfoo bar\n"
+ "// foo bar\n",
+ Style));
+
+ EXPECT_EQ("// foo bar baz bazfoo\n"
+ "// foo bar baz bazfoo\n"
+ "// bar foo bar\n",
+ format("// foo bar baz bazfoo\n"
+ "// foo bar baz bazfoo bar\n"
+ "// foo bar\n",
+ Style));
+
+ EXPECT_EQ("// foo bar baz bazfoo\n"
+ "// foo bar baz bazfoo\n"
+ "// bar foo bar\n",
+ format("// foo bar baz bazfoo\n"
+ "// foo bar baz bazfoo bar\n"
+ "// foo bar\n",
+ Style));
+
+ // Make sure we do not keep protruding characters if strict mode reflow is
+ // cheaper than keeping protruding characters.
+ Style.ColumnLimit = 21;
+ EXPECT_EQ(
+ "// foo foo foo foo\n"
+ "// foo foo foo foo\n"
+ "// foo foo foo foo\n",
+ format("// foo foo foo foo foo foo foo foo foo foo foo foo\n", Style));
+
+ EXPECT_EQ("int a = /* long block\n"
+ " comment */\n"
+ " 42;",
+ format("int a = /* long block comment */ 42;", Style));
+}
+
+#define EXPECT_ALL_STYLES_EQUAL(Styles) \
+ for (size_t i = 1; i < Styles.size(); ++i) \
+ EXPECT_EQ(Styles[0], Styles[i]) \
+ << "Style #" << i << " of " << Styles.size() << " differs from Style #0"
+
+TEST_F(FormatTest, GetsPredefinedStyleByName) {
+ SmallVector<FormatStyle, 3> Styles;
+ Styles.resize(3);
+
+ Styles[0] = getLLVMStyle();
+ EXPECT_TRUE(getPredefinedStyle("LLVM", FormatStyle::LK_Cpp, &Styles[1]));
+ EXPECT_TRUE(getPredefinedStyle("lLvM", FormatStyle::LK_Cpp, &Styles[2]));
+ EXPECT_ALL_STYLES_EQUAL(Styles);
+
+ Styles[0] = getGoogleStyle();
+ EXPECT_TRUE(getPredefinedStyle("Google", FormatStyle::LK_Cpp, &Styles[1]));
+ EXPECT_TRUE(getPredefinedStyle("gOOgle", FormatStyle::LK_Cpp, &Styles[2]));
+ EXPECT_ALL_STYLES_EQUAL(Styles);
+
+ Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript);
+ EXPECT_TRUE(
+ getPredefinedStyle("Google", FormatStyle::LK_JavaScript, &Styles[1]));
+ EXPECT_TRUE(
+ getPredefinedStyle("gOOgle", FormatStyle::LK_JavaScript, &Styles[2]));
+ EXPECT_ALL_STYLES_EQUAL(Styles);
+
+ Styles[0] = getChromiumStyle(FormatStyle::LK_Cpp);
+ EXPECT_TRUE(getPredefinedStyle("Chromium", FormatStyle::LK_Cpp, &Styles[1]));
+ EXPECT_TRUE(getPredefinedStyle("cHRoMiUM", FormatStyle::LK_Cpp, &Styles[2]));
+ EXPECT_ALL_STYLES_EQUAL(Styles);
+
+ Styles[0] = getMozillaStyle();
+ EXPECT_TRUE(getPredefinedStyle("Mozilla", FormatStyle::LK_Cpp, &Styles[1]));
+ EXPECT_TRUE(getPredefinedStyle("moZILla", FormatStyle::LK_Cpp, &Styles[2]));
+ EXPECT_ALL_STYLES_EQUAL(Styles);
+
+ Styles[0] = getWebKitStyle();
+ EXPECT_TRUE(getPredefinedStyle("WebKit", FormatStyle::LK_Cpp, &Styles[1]));
+ EXPECT_TRUE(getPredefinedStyle("wEbKit", FormatStyle::LK_Cpp, &Styles[2]));
+ EXPECT_ALL_STYLES_EQUAL(Styles);
+
+ Styles[0] = getGNUStyle();
+ EXPECT_TRUE(getPredefinedStyle("GNU", FormatStyle::LK_Cpp, &Styles[1]));
+ EXPECT_TRUE(getPredefinedStyle("gnU", FormatStyle::LK_Cpp, &Styles[2]));
+ EXPECT_ALL_STYLES_EQUAL(Styles);
+
+ EXPECT_FALSE(getPredefinedStyle("qwerty", FormatStyle::LK_Cpp, &Styles[0]));
+}
+
+TEST_F(FormatTest, GetsCorrectBasedOnStyle) {
+ SmallVector<FormatStyle, 8> Styles;
+ Styles.resize(2);
+
+ Styles[0] = getGoogleStyle();
+ Styles[1] = getLLVMStyle();
+ EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value());
+ EXPECT_ALL_STYLES_EQUAL(Styles);
+
+ Styles.resize(5);
+ Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript);
+ Styles[1] = getLLVMStyle();
+ Styles[1].Language = FormatStyle::LK_JavaScript;
+ EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value());
+
+ Styles[2] = getLLVMStyle();
+ Styles[2].Language = FormatStyle::LK_JavaScript;
+ EXPECT_EQ(0, parseConfiguration("Language: JavaScript\n"
+ "BasedOnStyle: Google",
+ &Styles[2])
+ .value());
+
+ Styles[3] = getLLVMStyle();
+ Styles[3].Language = FormatStyle::LK_JavaScript;
+ EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google\n"
+ "Language: JavaScript",
+ &Styles[3])
+ .value());
+
+ Styles[4] = getLLVMStyle();
+ Styles[4].Language = FormatStyle::LK_JavaScript;
+ EXPECT_EQ(0, parseConfiguration("---\n"
+ "BasedOnStyle: LLVM\n"
+ "IndentWidth: 123\n"
+ "---\n"
+ "BasedOnStyle: Google\n"
+ "Language: JavaScript",
+ &Styles[4])
+ .value());
+ EXPECT_ALL_STYLES_EQUAL(Styles);
+}
+
+#define CHECK_PARSE_BOOL_FIELD(FIELD, CONFIG_NAME) \
+ Style.FIELD = false; \
+ EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": true", &Style).value()); \
+ EXPECT_TRUE(Style.FIELD); \
+ EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": false", &Style).value()); \
+ EXPECT_FALSE(Style.FIELD);
+
+#define CHECK_PARSE_BOOL(FIELD) CHECK_PARSE_BOOL_FIELD(FIELD, #FIELD)
+
+#define CHECK_PARSE_NESTED_BOOL_FIELD(STRUCT, FIELD, CONFIG_NAME) \
+ Style.STRUCT.FIELD = false; \
+ EXPECT_EQ(0, \
+ parseConfiguration(#STRUCT ":\n " CONFIG_NAME ": true", &Style) \
+ .value()); \
+ EXPECT_TRUE(Style.STRUCT.FIELD); \
+ EXPECT_EQ(0, \
+ parseConfiguration(#STRUCT ":\n " CONFIG_NAME ": false", &Style) \
+ .value()); \
+ EXPECT_FALSE(Style.STRUCT.FIELD);
+
+#define CHECK_PARSE_NESTED_BOOL(STRUCT, FIELD) \
+ CHECK_PARSE_NESTED_BOOL_FIELD(STRUCT, FIELD, #FIELD)
+
+#define CHECK_PARSE(TEXT, FIELD, VALUE) \
+ EXPECT_NE(VALUE, Style.FIELD); \
+ EXPECT_EQ(0, parseConfiguration(TEXT, &Style).value()); \
+ EXPECT_EQ(VALUE, Style.FIELD)
+
+TEST_F(FormatTest, ParsesConfigurationBools) {
+ FormatStyle Style = {};
+ Style.Language = FormatStyle::LK_Cpp;
+ CHECK_PARSE_BOOL(AlignOperands);
+ CHECK_PARSE_BOOL(AlignTrailingComments);
+ CHECK_PARSE_BOOL(AlignConsecutiveAssignments);
+ CHECK_PARSE_BOOL(AlignConsecutiveDeclarations);
+ CHECK_PARSE_BOOL(AlignConsecutiveMacros);
+ CHECK_PARSE_BOOL(AllowAllArgumentsOnNextLine);
+ CHECK_PARSE_BOOL(AllowAllConstructorInitializersOnNextLine);
+ CHECK_PARSE_BOOL(AllowAllParametersOfDeclarationOnNextLine);
+ CHECK_PARSE_BOOL(AllowShortCaseLabelsOnASingleLine);
+ CHECK_PARSE_BOOL(AllowShortLoopsOnASingleLine);
+ CHECK_PARSE_BOOL(BinPackArguments);
+ CHECK_PARSE_BOOL(BinPackParameters);
+ CHECK_PARSE_BOOL(BreakAfterJavaFieldAnnotations);
+ CHECK_PARSE_BOOL(BreakBeforeTernaryOperators);
+ CHECK_PARSE_BOOL(BreakStringLiterals);
+ CHECK_PARSE_BOOL(CompactNamespaces);
+ CHECK_PARSE_BOOL(ConstructorInitializerAllOnOneLineOrOnePerLine);
+ CHECK_PARSE_BOOL(DeriveLineEnding);
+ CHECK_PARSE_BOOL(DerivePointerAlignment);
+ CHECK_PARSE_BOOL_FIELD(DerivePointerAlignment, "DerivePointerBinding");
+ CHECK_PARSE_BOOL(DisableFormat);
+ CHECK_PARSE_BOOL(IndentCaseLabels);
+ CHECK_PARSE_BOOL(IndentGotoLabels);
+ CHECK_PARSE_BOOL(IndentWrappedFunctionNames);
+ CHECK_PARSE_BOOL(KeepEmptyLinesAtTheStartOfBlocks);
+ CHECK_PARSE_BOOL(ObjCSpaceAfterProperty);
+ CHECK_PARSE_BOOL(ObjCSpaceBeforeProtocolList);
+ CHECK_PARSE_BOOL(Cpp11BracedListStyle);
+ CHECK_PARSE_BOOL(ReflowComments);
+ CHECK_PARSE_BOOL(SortIncludes);
+ CHECK_PARSE_BOOL(SortUsingDeclarations);
+ CHECK_PARSE_BOOL(SpacesInParentheses);
+ CHECK_PARSE_BOOL(SpacesInSquareBrackets);
+ CHECK_PARSE_BOOL(SpacesInAngles);
+ CHECK_PARSE_BOOL(SpacesInConditionalStatement);
+ CHECK_PARSE_BOOL(SpaceInEmptyBlock);
+ CHECK_PARSE_BOOL(SpaceInEmptyParentheses);
+ CHECK_PARSE_BOOL(SpacesInContainerLiterals);
+ CHECK_PARSE_BOOL(SpacesInCStyleCastParentheses);
+ CHECK_PARSE_BOOL(SpaceAfterCStyleCast);
+ CHECK_PARSE_BOOL(SpaceAfterTemplateKeyword);
+ CHECK_PARSE_BOOL(SpaceAfterLogicalNot);
+ CHECK_PARSE_BOOL(SpaceBeforeAssignmentOperators);
+ CHECK_PARSE_BOOL(SpaceBeforeCpp11BracedList);
+ CHECK_PARSE_BOOL(SpaceBeforeCtorInitializerColon);
+ CHECK_PARSE_BOOL(SpaceBeforeInheritanceColon);
+ CHECK_PARSE_BOOL(SpaceBeforeRangeBasedForLoopColon);
+ CHECK_PARSE_BOOL(SpaceBeforeSquareBrackets);
+ CHECK_PARSE_BOOL(UseCRLF);
+
+ CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterCaseLabel);
+ CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterClass);
+ CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterEnum);
+ CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterFunction);
+ CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterNamespace);
+ CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterObjCDeclaration);
+ CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterStruct);
+ CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterUnion);
+ CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterExternBlock);
+ CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeCatch);
+ CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeElse);
+ CHECK_PARSE_NESTED_BOOL(BraceWrapping, IndentBraces);
+ CHECK_PARSE_NESTED_BOOL(BraceWrapping, SplitEmptyFunction);
+ CHECK_PARSE_NESTED_BOOL(BraceWrapping, SplitEmptyRecord);
+ CHECK_PARSE_NESTED_BOOL(BraceWrapping, SplitEmptyNamespace);
+}
+
+#undef CHECK_PARSE_BOOL
+
+TEST_F(FormatTest, ParsesConfiguration) {
+ FormatStyle Style = {};
+ Style.Language = FormatStyle::LK_Cpp;
+ CHECK_PARSE("AccessModifierOffset: -1234", AccessModifierOffset, -1234);
+ CHECK_PARSE("ConstructorInitializerIndentWidth: 1234",
+ ConstructorInitializerIndentWidth, 1234u);
+ CHECK_PARSE("ObjCBlockIndentWidth: 1234", ObjCBlockIndentWidth, 1234u);
+ CHECK_PARSE("ColumnLimit: 1234", ColumnLimit, 1234u);
+ CHECK_PARSE("MaxEmptyLinesToKeep: 1234", MaxEmptyLinesToKeep, 1234u);
+ CHECK_PARSE("PenaltyBreakAssignment: 1234", PenaltyBreakAssignment, 1234u);
+ CHECK_PARSE("PenaltyBreakBeforeFirstCallParameter: 1234",
+ PenaltyBreakBeforeFirstCallParameter, 1234u);
+ CHECK_PARSE("PenaltyBreakTemplateDeclaration: 1234",
+ PenaltyBreakTemplateDeclaration, 1234u);
+ CHECK_PARSE("PenaltyExcessCharacter: 1234", PenaltyExcessCharacter, 1234u);
+ CHECK_PARSE("PenaltyReturnTypeOnItsOwnLine: 1234",
+ PenaltyReturnTypeOnItsOwnLine, 1234u);
+ CHECK_PARSE("SpacesBeforeTrailingComments: 1234",
+ SpacesBeforeTrailingComments, 1234u);
+ CHECK_PARSE("IndentWidth: 32", IndentWidth, 32u);
+ CHECK_PARSE("ContinuationIndentWidth: 11", ContinuationIndentWidth, 11u);
+ CHECK_PARSE("CommentPragmas: '// abc$'", CommentPragmas, "// abc$");
+
+ Style.PointerAlignment = FormatStyle::PAS_Middle;
+ CHECK_PARSE("PointerAlignment: Left", PointerAlignment,
+ FormatStyle::PAS_Left);
+ CHECK_PARSE("PointerAlignment: Right", PointerAlignment,
+ FormatStyle::PAS_Right);
+ CHECK_PARSE("PointerAlignment: Middle", PointerAlignment,
+ FormatStyle::PAS_Middle);
+ // For backward compatibility:
+ CHECK_PARSE("PointerBindsToType: Left", PointerAlignment,
+ FormatStyle::PAS_Left);
+ CHECK_PARSE("PointerBindsToType: Right", PointerAlignment,
+ FormatStyle::PAS_Right);
+ CHECK_PARSE("PointerBindsToType: Middle", PointerAlignment,
+ FormatStyle::PAS_Middle);
+
+ Style.Standard = FormatStyle::LS_Auto;
+ CHECK_PARSE("Standard: c++03", Standard, FormatStyle::LS_Cpp03);
+ CHECK_PARSE("Standard: c++11", Standard, FormatStyle::LS_Cpp11);
+ CHECK_PARSE("Standard: c++14", Standard, FormatStyle::LS_Cpp14);
+ CHECK_PARSE("Standard: c++17", Standard, FormatStyle::LS_Cpp17);
+ CHECK_PARSE("Standard: c++20", Standard, FormatStyle::LS_Cpp20);
+ CHECK_PARSE("Standard: Auto", Standard, FormatStyle::LS_Auto);
+ CHECK_PARSE("Standard: Latest", Standard, FormatStyle::LS_Latest);
+ // Legacy aliases:
+ CHECK_PARSE("Standard: Cpp03", Standard, FormatStyle::LS_Cpp03);
+ CHECK_PARSE("Standard: Cpp11", Standard, FormatStyle::LS_Latest);
+ CHECK_PARSE("Standard: C++03", Standard, FormatStyle::LS_Cpp03);
+ CHECK_PARSE("Standard: C++11", Standard, FormatStyle::LS_Cpp11);
+
+ Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All;
+ CHECK_PARSE("BreakBeforeBinaryOperators: NonAssignment",
+ BreakBeforeBinaryOperators, FormatStyle::BOS_NonAssignment);
+ CHECK_PARSE("BreakBeforeBinaryOperators: None", BreakBeforeBinaryOperators,
+ FormatStyle::BOS_None);
+ CHECK_PARSE("BreakBeforeBinaryOperators: All", BreakBeforeBinaryOperators,
+ FormatStyle::BOS_All);
+ // For backward compatibility:
+ CHECK_PARSE("BreakBeforeBinaryOperators: false", BreakBeforeBinaryOperators,
+ FormatStyle::BOS_None);
+ CHECK_PARSE("BreakBeforeBinaryOperators: true", BreakBeforeBinaryOperators,
+ FormatStyle::BOS_All);
+
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeColon;
+ CHECK_PARSE("BreakConstructorInitializers: BeforeComma",
+ BreakConstructorInitializers, FormatStyle::BCIS_BeforeComma);
+ CHECK_PARSE("BreakConstructorInitializers: AfterColon",
+ BreakConstructorInitializers, FormatStyle::BCIS_AfterColon);
+ CHECK_PARSE("BreakConstructorInitializers: BeforeColon",
+ BreakConstructorInitializers, FormatStyle::BCIS_BeforeColon);
+ // For backward compatibility:
+ CHECK_PARSE("BreakConstructorInitializersBeforeComma: true",
+ BreakConstructorInitializers, FormatStyle::BCIS_BeforeComma);
+
+ Style.BreakInheritanceList = FormatStyle::BILS_BeforeColon;
+ CHECK_PARSE("BreakInheritanceList: BeforeComma", BreakInheritanceList,
+ FormatStyle::BILS_BeforeComma);
+ CHECK_PARSE("BreakInheritanceList: AfterColon", BreakInheritanceList,
+ FormatStyle::BILS_AfterColon);
+ CHECK_PARSE("BreakInheritanceList: BeforeColon", BreakInheritanceList,
+ FormatStyle::BILS_BeforeColon);
+ // For backward compatibility:
+ CHECK_PARSE("BreakBeforeInheritanceComma: true", BreakInheritanceList,
+ FormatStyle::BILS_BeforeComma);
+
+ Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak;
+ CHECK_PARSE("AlignAfterOpenBracket: Align", AlignAfterOpenBracket,
+ FormatStyle::BAS_Align);
+ CHECK_PARSE("AlignAfterOpenBracket: DontAlign", AlignAfterOpenBracket,
+ FormatStyle::BAS_DontAlign);
+ CHECK_PARSE("AlignAfterOpenBracket: AlwaysBreak", AlignAfterOpenBracket,
+ FormatStyle::BAS_AlwaysBreak);
+ // For backward compatibility:
+ CHECK_PARSE("AlignAfterOpenBracket: false", AlignAfterOpenBracket,
+ FormatStyle::BAS_DontAlign);
+ CHECK_PARSE("AlignAfterOpenBracket: true", AlignAfterOpenBracket,
+ FormatStyle::BAS_Align);
+
+ Style.AlignEscapedNewlines = FormatStyle::ENAS_Left;
+ CHECK_PARSE("AlignEscapedNewlines: DontAlign", AlignEscapedNewlines,
+ FormatStyle::ENAS_DontAlign);
+ CHECK_PARSE("AlignEscapedNewlines: Left", AlignEscapedNewlines,
+ FormatStyle::ENAS_Left);
+ CHECK_PARSE("AlignEscapedNewlines: Right", AlignEscapedNewlines,
+ FormatStyle::ENAS_Right);
+ // For backward compatibility:
+ CHECK_PARSE("AlignEscapedNewlinesLeft: true", AlignEscapedNewlines,
+ FormatStyle::ENAS_Left);
+ CHECK_PARSE("AlignEscapedNewlinesLeft: false", AlignEscapedNewlines,
+ FormatStyle::ENAS_Right);
+
+ Style.UseTab = FormatStyle::UT_ForIndentation;
+ CHECK_PARSE("UseTab: Never", UseTab, FormatStyle::UT_Never);
+ CHECK_PARSE("UseTab: ForIndentation", UseTab, FormatStyle::UT_ForIndentation);
+ CHECK_PARSE("UseTab: Always", UseTab, FormatStyle::UT_Always);
+ CHECK_PARSE("UseTab: ForContinuationAndIndentation", UseTab,
+ FormatStyle::UT_ForContinuationAndIndentation);
+ // For backward compatibility:
+ CHECK_PARSE("UseTab: false", UseTab, FormatStyle::UT_Never);
+ CHECK_PARSE("UseTab: true", UseTab, FormatStyle::UT_Always);
+
+ Style.AllowShortBlocksOnASingleLine = FormatStyle::SBS_Empty;
+ CHECK_PARSE("AllowShortBlocksOnASingleLine: Never",
+ AllowShortBlocksOnASingleLine, FormatStyle::SBS_Never);
+ CHECK_PARSE("AllowShortBlocksOnASingleLine: Empty",
+ AllowShortBlocksOnASingleLine, FormatStyle::SBS_Empty);
+ CHECK_PARSE("AllowShortBlocksOnASingleLine: Always",
+ AllowShortBlocksOnASingleLine, FormatStyle::SBS_Always);
+ // For backward compatibility:
+ CHECK_PARSE("AllowShortBlocksOnASingleLine: false",
+ AllowShortBlocksOnASingleLine, FormatStyle::SBS_Never);
+ CHECK_PARSE("AllowShortBlocksOnASingleLine: true",
+ AllowShortBlocksOnASingleLine, FormatStyle::SBS_Always);
+
+ Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline;
+ CHECK_PARSE("AllowShortFunctionsOnASingleLine: None",
+ AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None);
+ CHECK_PARSE("AllowShortFunctionsOnASingleLine: Inline",
+ AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Inline);
+ CHECK_PARSE("AllowShortFunctionsOnASingleLine: Empty",
+ AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Empty);
+ CHECK_PARSE("AllowShortFunctionsOnASingleLine: All",
+ AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All);
+ // For backward compatibility:
+ CHECK_PARSE("AllowShortFunctionsOnASingleLine: false",
+ AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None);
+ CHECK_PARSE("AllowShortFunctionsOnASingleLine: true",
+ AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All);
+
+ Style.SpaceBeforeParens = FormatStyle::SBPO_Always;
+ CHECK_PARSE("SpaceBeforeParens: Never", SpaceBeforeParens,
+ FormatStyle::SBPO_Never);
+ CHECK_PARSE("SpaceBeforeParens: Always", SpaceBeforeParens,
+ FormatStyle::SBPO_Always);
+ CHECK_PARSE("SpaceBeforeParens: ControlStatements", SpaceBeforeParens,
+ FormatStyle::SBPO_ControlStatements);
+ CHECK_PARSE("SpaceBeforeParens: NonEmptyParentheses", SpaceBeforeParens,
+ FormatStyle::SBPO_NonEmptyParentheses);
+ // For backward compatibility:
+ CHECK_PARSE("SpaceAfterControlStatementKeyword: false", SpaceBeforeParens,
+ FormatStyle::SBPO_Never);
+ CHECK_PARSE("SpaceAfterControlStatementKeyword: true", SpaceBeforeParens,
+ FormatStyle::SBPO_ControlStatements);
+
+ Style.ColumnLimit = 123;
+ FormatStyle BaseStyle = getLLVMStyle();
+ CHECK_PARSE("BasedOnStyle: LLVM", ColumnLimit, BaseStyle.ColumnLimit);
+ CHECK_PARSE("BasedOnStyle: LLVM\nColumnLimit: 1234", ColumnLimit, 1234u);
+
+ Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup;
+ CHECK_PARSE("BreakBeforeBraces: Attach", BreakBeforeBraces,
+ FormatStyle::BS_Attach);
+ CHECK_PARSE("BreakBeforeBraces: Linux", BreakBeforeBraces,
+ FormatStyle::BS_Linux);
+ CHECK_PARSE("BreakBeforeBraces: Mozilla", BreakBeforeBraces,
+ FormatStyle::BS_Mozilla);
+ CHECK_PARSE("BreakBeforeBraces: Stroustrup", BreakBeforeBraces,
+ FormatStyle::BS_Stroustrup);
+ CHECK_PARSE("BreakBeforeBraces: Allman", BreakBeforeBraces,
+ FormatStyle::BS_Allman);
+ CHECK_PARSE("BreakBeforeBraces: Whitesmiths", BreakBeforeBraces,
+ FormatStyle::BS_Whitesmiths);
+ CHECK_PARSE("BreakBeforeBraces: GNU", BreakBeforeBraces, FormatStyle::BS_GNU);
+ CHECK_PARSE("BreakBeforeBraces: WebKit", BreakBeforeBraces,
+ FormatStyle::BS_WebKit);
+ CHECK_PARSE("BreakBeforeBraces: Custom", BreakBeforeBraces,
+ FormatStyle::BS_Custom);
+
+ Style.BraceWrapping.AfterControlStatement = FormatStyle::BWACS_Never;
+ CHECK_PARSE("BraceWrapping:\n"
+ " AfterControlStatement: MultiLine",
+ BraceWrapping.AfterControlStatement,
+ FormatStyle::BWACS_MultiLine);
+ CHECK_PARSE("BraceWrapping:\n"
+ " AfterControlStatement: Always",
+ BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Always);
+ CHECK_PARSE("BraceWrapping:\n"
+ " AfterControlStatement: Never",
+ BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Never);
+ // For backward compatibility:
+ CHECK_PARSE("BraceWrapping:\n"
+ " AfterControlStatement: true",
+ BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Always);
+ CHECK_PARSE("BraceWrapping:\n"
+ " AfterControlStatement: false",
+ BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Never);
+
+ Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_All;
+ CHECK_PARSE("AlwaysBreakAfterReturnType: None", AlwaysBreakAfterReturnType,
+ FormatStyle::RTBS_None);
+ CHECK_PARSE("AlwaysBreakAfterReturnType: All", AlwaysBreakAfterReturnType,
+ FormatStyle::RTBS_All);
+ CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevel",
+ AlwaysBreakAfterReturnType, FormatStyle::RTBS_TopLevel);
+ CHECK_PARSE("AlwaysBreakAfterReturnType: AllDefinitions",
+ AlwaysBreakAfterReturnType, FormatStyle::RTBS_AllDefinitions);
+ CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevelDefinitions",
+ AlwaysBreakAfterReturnType,
+ FormatStyle::RTBS_TopLevelDefinitions);
+
+ Style.AlwaysBreakTemplateDeclarations = FormatStyle::BTDS_Yes;
+ CHECK_PARSE("AlwaysBreakTemplateDeclarations: No",
+ AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_No);
+ CHECK_PARSE("AlwaysBreakTemplateDeclarations: MultiLine",
+ AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_MultiLine);
+ CHECK_PARSE("AlwaysBreakTemplateDeclarations: Yes",
+ AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_Yes);
+ CHECK_PARSE("AlwaysBreakTemplateDeclarations: false",
+ AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_MultiLine);
+ CHECK_PARSE("AlwaysBreakTemplateDeclarations: true",
+ AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_Yes);
+
+ Style.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_All;
+ CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: None",
+ AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_None);
+ CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: All",
+ AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_All);
+ CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: TopLevel",
+ AlwaysBreakAfterDefinitionReturnType,
+ FormatStyle::DRTBS_TopLevel);
+
+ Style.NamespaceIndentation = FormatStyle::NI_All;
+ CHECK_PARSE("NamespaceIndentation: None", NamespaceIndentation,
+ FormatStyle::NI_None);
+ CHECK_PARSE("NamespaceIndentation: Inner", NamespaceIndentation,
+ FormatStyle::NI_Inner);
+ CHECK_PARSE("NamespaceIndentation: All", NamespaceIndentation,
+ FormatStyle::NI_All);
+
+ Style.AllowShortIfStatementsOnASingleLine = FormatStyle::SIS_Always;
+ CHECK_PARSE("AllowShortIfStatementsOnASingleLine: Never",
+ AllowShortIfStatementsOnASingleLine, FormatStyle::SIS_Never);
+ CHECK_PARSE("AllowShortIfStatementsOnASingleLine: WithoutElse",
+ AllowShortIfStatementsOnASingleLine,
+ FormatStyle::SIS_WithoutElse);
+ CHECK_PARSE("AllowShortIfStatementsOnASingleLine: Always",
+ AllowShortIfStatementsOnASingleLine, FormatStyle::SIS_Always);
+ CHECK_PARSE("AllowShortIfStatementsOnASingleLine: false",
+ AllowShortIfStatementsOnASingleLine, FormatStyle::SIS_Never);
+ CHECK_PARSE("AllowShortIfStatementsOnASingleLine: true",
+ AllowShortIfStatementsOnASingleLine,
+ FormatStyle::SIS_WithoutElse);
+
+ // FIXME: This is required because parsing a configuration simply overwrites
+ // the first N elements of the list instead of resetting it.
+ Style.ForEachMacros.clear();
+ std::vector<std::string> BoostForeach;
+ BoostForeach.push_back("BOOST_FOREACH");
+ CHECK_PARSE("ForEachMacros: [BOOST_FOREACH]", ForEachMacros, BoostForeach);
+ std::vector<std::string> BoostAndQForeach;
+ BoostAndQForeach.push_back("BOOST_FOREACH");
+ BoostAndQForeach.push_back("Q_FOREACH");
+ CHECK_PARSE("ForEachMacros: [BOOST_FOREACH, Q_FOREACH]", ForEachMacros,
+ BoostAndQForeach);
+
+ Style.StatementMacros.clear();
+ CHECK_PARSE("StatementMacros: [QUNUSED]", StatementMacros,
+ std::vector<std::string>{"QUNUSED"});
+ CHECK_PARSE("StatementMacros: [QUNUSED, QT_REQUIRE_VERSION]", StatementMacros,
+ std::vector<std::string>({"QUNUSED", "QT_REQUIRE_VERSION"}));
+
+ Style.NamespaceMacros.clear();
+ CHECK_PARSE("NamespaceMacros: [TESTSUITE]", NamespaceMacros,
+ std::vector<std::string>{"TESTSUITE"});
+ CHECK_PARSE("NamespaceMacros: [TESTSUITE, SUITE]", NamespaceMacros,
+ std::vector<std::string>({"TESTSUITE", "SUITE"}));
+
+ Style.IncludeStyle.IncludeCategories.clear();
+ std::vector<tooling::IncludeStyle::IncludeCategory> ExpectedCategories = {
+ {"abc/.*", 2, 0}, {".*", 1, 0}};
+ CHECK_PARSE("IncludeCategories:\n"
+ " - Regex: abc/.*\n"
+ " Priority: 2\n"
+ " - Regex: .*\n"
+ " Priority: 1",
+ IncludeStyle.IncludeCategories, ExpectedCategories);
+ CHECK_PARSE("IncludeIsMainRegex: 'abc$'", IncludeStyle.IncludeIsMainRegex,
+ "abc$");
+ CHECK_PARSE("IncludeIsMainSourceRegex: 'abc$'",
+ IncludeStyle.IncludeIsMainSourceRegex, "abc$");
+
+ Style.RawStringFormats.clear();
+ std::vector<FormatStyle::RawStringFormat> ExpectedRawStringFormats = {
+ {
+ FormatStyle::LK_TextProto,
+ {"pb", "proto"},
+ {"PARSE_TEXT_PROTO"},
+ /*CanonicalDelimiter=*/"",
+ "llvm",
+ },
+ {
+ FormatStyle::LK_Cpp,
+ {"cc", "cpp"},
+ {"C_CODEBLOCK", "CPPEVAL"},
+ /*CanonicalDelimiter=*/"cc",
+ /*BasedOnStyle=*/"",
+ },
+ };
+
+ CHECK_PARSE("RawStringFormats:\n"
+ " - Language: TextProto\n"
+ " Delimiters:\n"
+ " - 'pb'\n"
+ " - 'proto'\n"
+ " EnclosingFunctions:\n"
+ " - 'PARSE_TEXT_PROTO'\n"
+ " BasedOnStyle: llvm\n"
+ " - Language: Cpp\n"
+ " Delimiters:\n"
+ " - 'cc'\n"
+ " - 'cpp'\n"
+ " EnclosingFunctions:\n"
+ " - 'C_CODEBLOCK'\n"
+ " - 'CPPEVAL'\n"
+ " CanonicalDelimiter: 'cc'",
+ RawStringFormats, ExpectedRawStringFormats);
+}
+
+TEST_F(FormatTest, ParsesConfigurationWithLanguages) {
+ FormatStyle Style = {};
+ Style.Language = FormatStyle::LK_Cpp;
+ CHECK_PARSE("Language: Cpp\n"
+ "IndentWidth: 12",
+ IndentWidth, 12u);
+ EXPECT_EQ(parseConfiguration("Language: JavaScript\n"
+ "IndentWidth: 34",
+ &Style),
+ ParseError::Unsuitable);
+ EXPECT_EQ(12u, Style.IndentWidth);
+ CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u);
+ EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language);
+
+ Style.Language = FormatStyle::LK_JavaScript;
+ CHECK_PARSE("Language: JavaScript\n"
+ "IndentWidth: 12",
+ IndentWidth, 12u);
+ CHECK_PARSE("IndentWidth: 23", IndentWidth, 23u);
+ EXPECT_EQ(parseConfiguration("Language: Cpp\n"
+ "IndentWidth: 34",
+ &Style),
+ ParseError::Unsuitable);
+ EXPECT_EQ(23u, Style.IndentWidth);
+ CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u);
+ EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language);
+
+ CHECK_PARSE("BasedOnStyle: LLVM\n"
+ "IndentWidth: 67",
+ IndentWidth, 67u);
+
+ CHECK_PARSE("---\n"
+ "Language: JavaScript\n"
+ "IndentWidth: 12\n"
+ "---\n"
+ "Language: Cpp\n"
+ "IndentWidth: 34\n"
+ "...\n",
+ IndentWidth, 12u);
+
+ Style.Language = FormatStyle::LK_Cpp;
+ CHECK_PARSE("---\n"
+ "Language: JavaScript\n"
+ "IndentWidth: 12\n"
+ "---\n"
+ "Language: Cpp\n"
+ "IndentWidth: 34\n"
+ "...\n",
+ IndentWidth, 34u);
+ CHECK_PARSE("---\n"
+ "IndentWidth: 78\n"
+ "---\n"
+ "Language: JavaScript\n"
+ "IndentWidth: 56\n"
+ "...\n",
+ IndentWidth, 78u);
+
+ Style.ColumnLimit = 123;
+ Style.IndentWidth = 234;
+ Style.BreakBeforeBraces = FormatStyle::BS_Linux;
+ Style.TabWidth = 345;
+ EXPECT_FALSE(parseConfiguration("---\n"
+ "IndentWidth: 456\n"
+ "BreakBeforeBraces: Allman\n"
+ "---\n"
+ "Language: JavaScript\n"
+ "IndentWidth: 111\n"
+ "TabWidth: 111\n"
+ "---\n"
+ "Language: Cpp\n"
+ "BreakBeforeBraces: Stroustrup\n"
+ "TabWidth: 789\n"
+ "...\n",
+ &Style));
+ EXPECT_EQ(123u, Style.ColumnLimit);
+ EXPECT_EQ(456u, Style.IndentWidth);
+ EXPECT_EQ(FormatStyle::BS_Stroustrup, Style.BreakBeforeBraces);
+ EXPECT_EQ(789u, Style.TabWidth);
+
+ EXPECT_EQ(parseConfiguration("---\n"
+ "Language: JavaScript\n"
+ "IndentWidth: 56\n"
+ "---\n"
+ "IndentWidth: 78\n"
+ "...\n",
+ &Style),
+ ParseError::Error);
+ EXPECT_EQ(parseConfiguration("---\n"
+ "Language: JavaScript\n"
+ "IndentWidth: 56\n"
+ "---\n"
+ "Language: JavaScript\n"
+ "IndentWidth: 78\n"
+ "...\n",
+ &Style),
+ ParseError::Error);
+
+ EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language);
+}
+
+#undef CHECK_PARSE
+
+TEST_F(FormatTest, UsesLanguageForBasedOnStyle) {
+ FormatStyle Style = {};
+ Style.Language = FormatStyle::LK_JavaScript;
+ Style.BreakBeforeTernaryOperators = true;
+ EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Style).value());
+ EXPECT_FALSE(Style.BreakBeforeTernaryOperators);
+
+ Style.BreakBeforeTernaryOperators = true;
+ EXPECT_EQ(0, parseConfiguration("---\n"
+ "BasedOnStyle: Google\n"
+ "---\n"
+ "Language: JavaScript\n"
+ "IndentWidth: 76\n"
+ "...\n",
+ &Style)
+ .value());
+ EXPECT_FALSE(Style.BreakBeforeTernaryOperators);
+ EXPECT_EQ(76u, Style.IndentWidth);
+ EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language);
+}
+
+TEST_F(FormatTest, ConfigurationRoundTripTest) {
+ FormatStyle Style = getLLVMStyle();
+ std::string YAML = configurationAsText(Style);
+ FormatStyle ParsedStyle = {};
+ ParsedStyle.Language = FormatStyle::LK_Cpp;
+ EXPECT_EQ(0, parseConfiguration(YAML, &ParsedStyle).value());
+ EXPECT_EQ(Style, ParsedStyle);
+}
+
+TEST_F(FormatTest, WorksFor8bitEncodings) {
+ EXPECT_EQ("\"\xce\xe4\xed\xe0\xe6\xe4\xfb \xe2 \"\n"
+ "\"\xf1\xf2\xf3\xe4\xb8\xed\xf3\xfe \"\n"
+ "\"\xe7\xe8\xec\xed\xfe\xfe \"\n"
+ "\"\xef\xee\xf0\xf3...\"",
+ format("\"\xce\xe4\xed\xe0\xe6\xe4\xfb \xe2 "
+ "\xf1\xf2\xf3\xe4\xb8\xed\xf3\xfe \xe7\xe8\xec\xed\xfe\xfe "
+ "\xef\xee\xf0\xf3...\"",
+ getLLVMStyleWithColumns(12)));
+}
+
+TEST_F(FormatTest, HandlesUTF8BOM) {
+ EXPECT_EQ("\xef\xbb\xbf", format("\xef\xbb\xbf"));
+ EXPECT_EQ("\xef\xbb\xbf#include <iostream>",
+ format("\xef\xbb\xbf#include <iostream>"));
+ EXPECT_EQ("\xef\xbb\xbf\n#include <iostream>",
+ format("\xef\xbb\xbf\n#include <iostream>"));
+}
+
+// FIXME: Encode Cyrillic and CJK characters below to appease MS compilers.
+#if !defined(_MSC_VER)
+
+TEST_F(FormatTest, CountsUTF8CharactersProperly) {
+ verifyFormat("\"Однажды в студёную зимнюю пору...\"",
+ getLLVMStyleWithColumns(35));
+ verifyFormat("\"一 二 三 四 五 六 七 八 九 十\"",
+ getLLVMStyleWithColumns(31));
+ verifyFormat("// Однажды в студёную зимнюю пору...",
+ getLLVMStyleWithColumns(36));
+ verifyFormat("// 一 二 三 四 五 六 七 八 九 十", getLLVMStyleWithColumns(32));
+ verifyFormat("/* Однажды в студёную зимнюю пору... */",
+ getLLVMStyleWithColumns(39));
+ verifyFormat("/* 一 二 三 四 五 六 七 八 九 十 */",
+ getLLVMStyleWithColumns(35));
+}
+
+TEST_F(FormatTest, SplitsUTF8Strings) {
+ // Non-printable characters' width is currently considered to be the length in
+ // bytes in UTF8. The characters can be displayed in very different manner
+ // (zero-width, single width with a substitution glyph, expanded to their code
+ // (e.g. "<8d>"), so there's no single correct way to handle them.
+ EXPECT_EQ("\"aaaaÄ\"\n"
+ "\"\xc2\x8d\";",
+ format("\"aaaaÄ\xc2\x8d\";", getLLVMStyleWithColumns(10)));
+ EXPECT_EQ("\"aaaaaaaÄ\"\n"
+ "\"\xc2\x8d\";",
+ format("\"aaaaaaaÄ\xc2\x8d\";", getLLVMStyleWithColumns(10)));
+ EXPECT_EQ("\"Однажды, в \"\n"
+ "\"студёную \"\n"
+ "\"зимнюю \"\n"
+ "\"пору,\"",
+ format("\"Однажды, в студёную зимнюю пору,\"",
+ getLLVMStyleWithColumns(13)));
+ EXPECT_EQ(
+ "\"一 二 三 \"\n"
+ "\"四 五六 \"\n"
+ "\"七 八 九 \"\n"
+ "\"十\"",
+ format("\"一 二 三 四 五六 七 八 九 十\"", getLLVMStyleWithColumns(11)));
+ EXPECT_EQ("\"一\t\"\n"
+ "\"二 \t\"\n"
+ "\"三 四 \"\n"
+ "\"五\t\"\n"
+ "\"六 \t\"\n"
+ "\"七 \"\n"
+ "\"八九十\tqq\"",
+ format("\"一\t二 \t三 四 五\t六 \t七 八九十\tqq\"",
+ getLLVMStyleWithColumns(11)));
+
+ // UTF8 character in an escape sequence.
+ EXPECT_EQ("\"aaaaaa\"\n"
+ "\"\\\xC2\x8D\"",
+ format("\"aaaaaa\\\xC2\x8D\"", getLLVMStyleWithColumns(10)));
+}
+
+TEST_F(FormatTest, HandlesDoubleWidthCharsInMultiLineStrings) {
+ EXPECT_EQ("const char *sssss =\n"
+ " \"一二三四五六七八\\\n"
+ " 九 十\";",
+ format("const char *sssss = \"一二三四五六七八\\\n"
+ " 九 十\";",
+ getLLVMStyleWithColumns(30)));
+}
+
+TEST_F(FormatTest, SplitsUTF8LineComments) {
+ EXPECT_EQ("// aaaaÄ\xc2\x8d",
+ format("// aaaaÄ\xc2\x8d", getLLVMStyleWithColumns(10)));
+ EXPECT_EQ("// Я из лесу\n"
+ "// вышел; был\n"
+ "// сильный\n"
+ "// мороз.",
+ format("// Я из лесу вышел; был сильный мороз.",
+ getLLVMStyleWithColumns(13)));
+ EXPECT_EQ("// 一二三\n"
+ "// 四五六七\n"
+ "// 八 九\n"
+ "// 十",
+ format("// 一二三 四五六七 八 九 十", getLLVMStyleWithColumns(9)));
+}
+
+TEST_F(FormatTest, SplitsUTF8BlockComments) {
+ EXPECT_EQ("/* Гляжу,\n"
+ " * поднимается\n"
+ " * медленно в\n"
+ " * гору\n"
+ " * Лошадка,\n"
+ " * везущая\n"
+ " * хворосту\n"
+ " * воз. */",
+ format("/* Гляжу, поднимается медленно в гору\n"
+ " * Лошадка, везущая хворосту воз. */",
+ getLLVMStyleWithColumns(13)));
+ EXPECT_EQ(
+ "/* 一二三\n"
+ " * 四五六七\n"
+ " * 八 九\n"
+ " * 十 */",
+ format("/* 一二三 四五六七 八 九 十 */", getLLVMStyleWithColumns(9)));
+ EXPECT_EQ("/* 𝓣𝓮𝓼𝓽 𝔣𝔬𝔲𝔯\n"
+ " * 𝕓𝕪𝕥𝕖\n"
+ " * 𝖀𝕿𝕱-𝟠 */",
+ format("/* 𝓣𝓮𝓼𝓽 𝔣𝔬𝔲𝔯 𝕓𝕪𝕥𝕖 𝖀𝕿𝕱-𝟠 */", getLLVMStyleWithColumns(12)));
+}
+
+#endif // _MSC_VER
+
+TEST_F(FormatTest, ConstructorInitializerIndentWidth) {
+ FormatStyle Style = getLLVMStyle();
+
+ Style.ConstructorInitializerIndentWidth = 4;
+ verifyFormat(
+ "SomeClass::Constructor()\n"
+ " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}",
+ Style);
+
+ Style.ConstructorInitializerIndentWidth = 2;
+ verifyFormat(
+ "SomeClass::Constructor()\n"
+ " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}",
+ Style);
+
+ Style.ConstructorInitializerIndentWidth = 0;
+ verifyFormat(
+ "SomeClass::Constructor()\n"
+ ": aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}",
+ Style);
+ Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak;
+ verifyFormat(
+ "SomeLongTemplateVariableName<\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>",
+ Style);
+ verifyFormat("bool smaller = 1 < "
+ "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n"
+ " "
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);",
+ Style);
+
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_AfterColon;
+ verifyFormat("SomeClass::Constructor() :\n"
+ "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa),\n"
+ "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa) {}",
+ Style);
+}
+
+TEST_F(FormatTest, BreakConstructorInitializersBeforeComma) {
+ FormatStyle Style = getLLVMStyle();
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeComma;
+ Style.ConstructorInitializerIndentWidth = 4;
+ verifyFormat("SomeClass::Constructor()\n"
+ " : a(a)\n"
+ " , b(b)\n"
+ " , c(c) {}",
+ Style);
+ verifyFormat("SomeClass::Constructor()\n"
+ " : a(a) {}",
+ Style);
+
+ Style.ColumnLimit = 0;
+ verifyFormat("SomeClass::Constructor()\n"
+ " : a(a) {}",
+ Style);
+ verifyFormat("SomeClass::Constructor() noexcept\n"
+ " : a(a) {}",
+ Style);
+ verifyFormat("SomeClass::Constructor()\n"
+ " : a(a)\n"
+ " , b(b)\n"
+ " , c(c) {}",
+ Style);
+ verifyFormat("SomeClass::Constructor()\n"
+ " : a(a) {\n"
+ " foo();\n"
+ " bar();\n"
+ "}",
+ Style);
+
+ Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None;
+ verifyFormat("SomeClass::Constructor()\n"
+ " : a(a)\n"
+ " , b(b)\n"
+ " , c(c) {\n}",
+ Style);
+ verifyFormat("SomeClass::Constructor()\n"
+ " : a(a) {\n}",
+ Style);
+
+ Style.ColumnLimit = 80;
+ Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All;
+ Style.ConstructorInitializerIndentWidth = 2;
+ verifyFormat("SomeClass::Constructor()\n"
+ " : a(a)\n"
+ " , b(b)\n"
+ " , c(c) {}",
+ Style);
+
+ Style.ConstructorInitializerIndentWidth = 0;
+ verifyFormat("SomeClass::Constructor()\n"
+ ": a(a)\n"
+ ", b(b)\n"
+ ", c(c) {}",
+ Style);
+
+ Style.ConstructorInitializerAllOnOneLineOrOnePerLine = true;
+ Style.ConstructorInitializerIndentWidth = 4;
+ verifyFormat("SomeClass::Constructor() : aaaaaaaa(aaaaaaaa) {}", Style);
+ verifyFormat(
+ "SomeClass::Constructor() : aaaaa(aaaaa), aaaaa(aaaaa), aaaaa(aaaaa)\n",
+ Style);
+ verifyFormat(
+ "SomeClass::Constructor()\n"
+ " : aaaaaaaa(aaaaaaaa), aaaaaaaa(aaaaaaaa), aaaaaaaa(aaaaaaaa) {}",
+ Style);
+ Style.ConstructorInitializerIndentWidth = 4;
+ Style.ColumnLimit = 60;
+ verifyFormat("SomeClass::Constructor()\n"
+ " : aaaaaaaa(aaaaaaaa)\n"
+ " , aaaaaaaa(aaaaaaaa)\n"
+ " , aaaaaaaa(aaaaaaaa) {}",
+ Style);
+}
+
+TEST_F(FormatTest, Destructors) {
+ verifyFormat("void F(int &i) { i.~int(); }");
+ verifyFormat("void F(int &i) { i->~int(); }");
+}
+
+TEST_F(FormatTest, FormatsWithWebKitStyle) {
+ FormatStyle Style = getWebKitStyle();
+
+ // Don't indent in outer namespaces.
+ verifyFormat("namespace outer {\n"
+ "int i;\n"
+ "namespace inner {\n"
+ " int i;\n"
+ "} // namespace inner\n"
+ "} // namespace outer\n"
+ "namespace other_outer {\n"
+ "int i;\n"
+ "}",
+ Style);
+
+ // Don't indent case labels.
+ verifyFormat("switch (variable) {\n"
+ "case 1:\n"
+ "case 2:\n"
+ " doSomething();\n"
+ " break;\n"
+ "default:\n"
+ " ++variable;\n"
+ "}",
+ Style);
+
+ // Wrap before binary operators.
+ EXPECT_EQ("void f()\n"
+ "{\n"
+ " if (aaaaaaaaaaaaaaaa\n"
+ " && bbbbbbbbbbbbbbbbbbbbbbbb\n"
+ " && (cccccccccccccccccccccccccc || dddddddddddddddddddd))\n"
+ " return;\n"
+ "}",
+ format("void f() {\n"
+ "if (aaaaaaaaaaaaaaaa\n"
+ "&& bbbbbbbbbbbbbbbbbbbbbbbb\n"
+ "&& (cccccccccccccccccccccccccc || dddddddddddddddddddd))\n"
+ "return;\n"
+ "}",
+ Style));
+
+ // Allow functions on a single line.
+ verifyFormat("void f() { return; }", Style);
+
+ // Allow empty blocks on a single line and insert a space in empty blocks.
+ EXPECT_EQ("void f() { }", format("void f() {}", Style));
+ EXPECT_EQ("while (true) { }", format("while (true) {}", Style));
+ // However, don't merge non-empty short loops.
+ EXPECT_EQ("while (true) {\n"
+ " continue;\n"
+ "}",
+ format("while (true) { continue; }", Style));
+
+ // Constructor initializers are formatted one per line with the "," on the
+ // new line.
+ verifyFormat("Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+ " , aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaa, // break\n"
+ " aaaaaaaaaaaaaa)\n"
+ " , aaaaaaaaaaaaaaaaaaaaaaa()\n"
+ "{\n"
+ "}",
+ Style);
+ verifyFormat("SomeClass::Constructor()\n"
+ " : a(a)\n"
+ "{\n"
+ "}",
+ Style);
+ EXPECT_EQ("SomeClass::Constructor()\n"
+ " : a(a)\n"
+ "{\n"
+ "}",
+ format("SomeClass::Constructor():a(a){}", Style));
+ verifyFormat("SomeClass::Constructor()\n"
+ " : a(a)\n"
+ " , b(b)\n"
+ " , c(c)\n"
+ "{\n"
+ "}",
+ Style);
+ verifyFormat("SomeClass::Constructor()\n"
+ " : a(a)\n"
+ "{\n"
+ " foo();\n"
+ " bar();\n"
+ "}",
+ Style);
+
+ // Access specifiers should be aligned left.
+ verifyFormat("class C {\n"
+ "public:\n"
+ " int i;\n"
+ "};",
+ Style);
+
+ // Do not align comments.
+ verifyFormat("int a; // Do not\n"
+ "double b; // align comments.",
+ Style);
+
+ // Do not align operands.
+ EXPECT_EQ("ASSERT(aaaa\n"
+ " || bbbb);",
+ format("ASSERT ( aaaa\n||bbbb);", Style));
+
+ // Accept input's line breaks.
+ EXPECT_EQ("if (aaaaaaaaaaaaaaa\n"
+ " || bbbbbbbbbbbbbbb) {\n"
+ " i++;\n"
+ "}",
+ format("if (aaaaaaaaaaaaaaa\n"
+ "|| bbbbbbbbbbbbbbb) { i++; }",
+ Style));
+ EXPECT_EQ("if (aaaaaaaaaaaaaaa || bbbbbbbbbbbbbbb) {\n"
+ " i++;\n"
+ "}",
+ format("if (aaaaaaaaaaaaaaa || bbbbbbbbbbbbbbb) { i++; }", Style));
+
+ // Don't automatically break all macro definitions (llvm.org/PR17842).
+ verifyFormat("#define aNumber 10", Style);
+ // However, generally keep the line breaks that the user authored.
+ EXPECT_EQ("#define aNumber \\\n"
+ " 10",
+ format("#define aNumber \\\n"
+ " 10",
+ Style));
+
+ // Keep empty and one-element array literals on a single line.
+ EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[]\n"
+ " copyItems:YES];",
+ format("NSArray*a=[[NSArray alloc] initWithArray:@[]\n"
+ "copyItems:YES];",
+ Style));
+ EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\" ]\n"
+ " copyItems:YES];",
+ format("NSArray*a=[[NSArray alloc]initWithArray:@[ @\"a\" ]\n"
+ " copyItems:YES];",
+ Style));
+ // FIXME: This does not seem right, there should be more indentation before
+ // the array literal's entries. Nested blocks have the same problem.
+ EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[\n"
+ " @\"a\",\n"
+ " @\"a\"\n"
+ "]\n"
+ " copyItems:YES];",
+ format("NSArray* a = [[NSArray alloc] initWithArray:@[\n"
+ " @\"a\",\n"
+ " @\"a\"\n"
+ " ]\n"
+ " copyItems:YES];",
+ Style));
+ EXPECT_EQ(
+ "NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\", @\"a\" ]\n"
+ " copyItems:YES];",
+ format("NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\", @\"a\" ]\n"
+ " copyItems:YES];",
+ Style));
+
+ verifyFormat("[self.a b:c c:d];", Style);
+ EXPECT_EQ("[self.a b:c\n"
+ " c:d];",
+ format("[self.a b:c\n"
+ "c:d];",
+ Style));
+}
+
+TEST_F(FormatTest, FormatsLambdas) {
+ verifyFormat("int c = [b]() mutable { return [&b] { return b++; }(); }();\n");
+ verifyFormat(
+ "int c = [b]() mutable noexcept { return [&b] { return b++; }(); }();\n");
+ verifyFormat("int c = [&] { [=] { return b++; }(); }();\n");
+ verifyFormat("int c = [&, &a, a] { [=, c, &d] { return b++; }(); }();\n");
+ verifyFormat("int c = [&a, &a, a] { [=, a, b, &c] { return b++; }(); }();\n");
+ verifyFormat("auto c = {[&a, &a, a] { [=, a, b, &c] { return b++; }(); }}\n");
+ verifyFormat("auto c = {[&a, &a, a] { [=, a, b, &c] {}(); }}\n");
+ verifyFormat("auto c = [a = [b = 42] {}] {};\n");
+ verifyFormat("auto c = [a = &i + 10, b = [] {}] {};\n");
+ verifyFormat("int x = f(*+[] {});");
+ verifyFormat("void f() {\n"
+ " other(x.begin(), x.end(), [&](int, int) { return 1; });\n"
+ "}\n");
+ verifyFormat("void f() {\n"
+ " other(x.begin(), //\n"
+ " x.end(), //\n"
+ " [&](int, int) { return 1; });\n"
+ "}\n");
+ verifyFormat("void f() {\n"
+ " other.other.other.other.other(\n"
+ " x.begin(), x.end(),\n"
+ " [something, rather](int, int, int, int, int, int, int) { "
+ "return 1; });\n"
+ "}\n");
+ verifyFormat(
+ "void f() {\n"
+ " other.other.other.other.other(\n"
+ " x.begin(), x.end(),\n"
+ " [something, rather](int, int, int, int, int, int, int) {\n"
+ " //\n"
+ " });\n"
+ "}\n");
+ verifyFormat("SomeFunction([]() { // A cool function...\n"
+ " return 43;\n"
+ "});");
+ EXPECT_EQ("SomeFunction([]() {\n"
+ "#define A a\n"
+ " return 43;\n"
+ "});",
+ format("SomeFunction([](){\n"
+ "#define A a\n"
+ "return 43;\n"
+ "});"));
+ verifyFormat("void f() {\n"
+ " SomeFunction([](decltype(x), A *a) {});\n"
+ "}");
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " [](const aaaaaaaaaa &a) { return a; });");
+ verifyFormat("string abc = SomeFunction(aaaaaaaaaaaaa, aaaaa, []() {\n"
+ " SomeOtherFunctioooooooooooooooooooooooooon();\n"
+ "});");
+ verifyFormat("Constructor()\n"
+ " : Field([] { // comment\n"
+ " int i;\n"
+ " }) {}");
+ verifyFormat("auto my_lambda = [](const string &some_parameter) {\n"
+ " return some_parameter.size();\n"
+ "};");
+ verifyFormat("std::function<std::string(const std::string &)> my_lambda =\n"
+ " [](const string &s) { return s; };");
+ verifyFormat("int i = aaaaaa ? 1 //\n"
+ " : [] {\n"
+ " return 2; //\n"
+ " }();");
+ verifyFormat("llvm::errs() << \"number of twos is \"\n"
+ " << std::count_if(v.begin(), v.end(), [](int x) {\n"
+ " return x == 2; // force break\n"
+ " });");
+ verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " [=](int iiiiiiiiiiii) {\n"
+ " return aaaaaaaaaaaaaaaaaaaaaaa !=\n"
+ " aaaaaaaaaaaaaaaaaaaaaaa;\n"
+ " });",
+ getLLVMStyleWithColumns(60));
+ verifyFormat("SomeFunction({[&] {\n"
+ " // comment\n"
+ " },\n"
+ " [&] {\n"
+ " // comment\n"
+ " }});");
+ verifyFormat("SomeFunction({[&] {\n"
+ " // comment\n"
+ "}});");
+ verifyFormat(
+ "virtual aaaaaaaaaaaaaaaa(\n"
+ " std::function<bool()> bbbbbbbbbbbb = [&]() { return true; },\n"
+ " aaaaa aaaaaaaaa);");
+
+ // Lambdas with return types.
+ verifyFormat("int c = []() -> int { return 2; }();\n");
+ verifyFormat("int c = []() -> int * { return 2; }();\n");
+ verifyFormat("int c = []() -> vector<int> { return {2}; }();\n");
+ verifyFormat("Foo([]() -> std::vector<int> { return {2}; }());");
+ verifyGoogleFormat("auto a = [&b, c](D* d) -> D* {};");
+ verifyGoogleFormat("auto a = [&b, c](D* d) -> pair<D*, D*> {};");
+ verifyGoogleFormat("auto a = [&b, c](D* d) -> D& {};");
+ verifyGoogleFormat("auto a = [&b, c](D* d) -> const D* {};");
+ verifyFormat("[a, a]() -> a<1> {};");
+ verifyFormat("[]() -> foo<5 + 2> { return {}; };");
+ verifyFormat("[]() -> foo<5 - 2> { return {}; };");
+ verifyFormat("[]() -> foo<5 / 2> { return {}; };");
+ verifyFormat("[]() -> foo<5 * 2> { return {}; };");
+ verifyFormat("[]() -> foo<5 % 2> { return {}; };");
+ verifyFormat("[]() -> foo<5 << 2> { return {}; };");
+ verifyFormat("[]() -> foo<!5> { return {}; };");
+ verifyFormat("[]() -> foo<~5> { return {}; };");
+ verifyFormat("[]() -> foo<5 | 2> { return {}; };");
+ verifyFormat("[]() -> foo<5 || 2> { return {}; };");
+ verifyFormat("[]() -> foo<5 & 2> { return {}; };");
+ verifyFormat("[]() -> foo<5 && 2> { return {}; };");
+ verifyFormat("[]() -> foo<5 == 2> { return {}; };");
+ verifyFormat("[]() -> foo<5 != 2> { return {}; };");
+ verifyFormat("[]() -> foo<5 >= 2> { return {}; };");
+ verifyFormat("[]() -> foo<5 <= 2> { return {}; };");
+ verifyFormat("[]() -> foo<5 < 2> { return {}; };");
+ verifyFormat("[]() -> foo<2 ? 1 : 0> { return {}; };");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<5 + 2> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<5 - 2> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<5 / 2> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<5 * 2> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<5 % 2> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<5 << 2> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<!5> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<~5> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<5 | 2> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<5 || 2> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<5 & 2> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<5 && 2> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<5 == 2> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<5 != 2> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<5 >= 2> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<5 <= 2> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<5 < 2> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("namespace bar {\n"
+ "// broken:\n"
+ "auto foo{[]() -> foo<2 ? 1 : 0> { return {}; }};\n"
+ "} // namespace bar");
+ verifyFormat("[]() -> a<1> {};");
+ verifyFormat("[]() -> a<1> { ; };");
+ verifyFormat("[]() -> a<1> { ; }();");
+ verifyFormat("[a, a]() -> a<true> {};");
+ verifyFormat("[]() -> a<true> {};");
+ verifyFormat("[]() -> a<true> { ; };");
+ verifyFormat("[]() -> a<true> { ; }();");
+ verifyFormat("[a, a]() -> a<false> {};");
+ verifyFormat("[]() -> a<false> {};");
+ verifyFormat("[]() -> a<false> { ; };");
+ verifyFormat("[]() -> a<false> { ; }();");
+ verifyFormat("auto foo{[]() -> foo<false> { ; }};");
+ verifyFormat("namespace bar {\n"
+ "auto foo{[]() -> foo<false> { ; }};\n"
+ "} // namespace bar");
+ verifyFormat("auto aaaaaaaa = [](int i, // break for some reason\n"
+ " int j) -> int {\n"
+ " return ffffffffffffffffffffffffffffffffffffffffffff(i * j);\n"
+ "};");
+ verifyFormat(
+ "aaaaaaaaaaaaaaaaaaaaaa(\n"
+ " [](aaaaaaaaaaaaaaaaaaaaaaaaaaa &aaa) -> aaaaaaaaaaaaaaaa {\n"
+ " return aaaaaaaaaaaaaaaaa;\n"
+ " });",
+ getLLVMStyleWithColumns(70));
+ verifyFormat("[]() //\n"
+ " -> int {\n"
+ " return 1; //\n"
+ "};");
+
+ // Lambdas with explicit template argument lists.
+ verifyFormat(
+ "auto L = []<template <typename> class T, class U>(T<U> &&a) {};\n");
+
+ // Multiple lambdas in the same parentheses change indentation rules. These
+ // lambdas are forced to start on new lines.
+ verifyFormat("SomeFunction(\n"
+ " []() {\n"
+ " //\n"
+ " },\n"
+ " []() {\n"
+ " //\n"
+ " });");
+
+ // A lambda passed as arg0 is always pushed to the next line.
+ verifyFormat("SomeFunction(\n"
+ " [this] {\n"
+ " //\n"
+ " },\n"
+ " 1);\n");
+
+ // A multi-line lambda passed as arg1 forces arg0 to be pushed out, just like
+ // the arg0 case above.
+ auto Style = getGoogleStyle();
+ Style.BinPackArguments = false;
+ verifyFormat("SomeFunction(\n"
+ " a,\n"
+ " [this] {\n"
+ " //\n"
+ " },\n"
+ " b);\n",
+ Style);
+ verifyFormat("SomeFunction(\n"
+ " a,\n"
+ " [this] {\n"
+ " //\n"
+ " },\n"
+ " b);\n");
+
+ // A lambda with a very long line forces arg0 to be pushed out irrespective of
+ // the BinPackArguments value (as long as the code is wide enough).
+ verifyFormat(
+ "something->SomeFunction(\n"
+ " a,\n"
+ " [this] {\n"
+ " "
+ "D0000000000000000000000000000000000000000000000000000000000001();\n"
+ " },\n"
+ " b);\n");
+
+ // A multi-line lambda is pulled up as long as the introducer fits on the
+ // previous line and there are no further args.
+ verifyFormat("function(1, [this, that] {\n"
+ " //\n"
+ "});\n");
+ verifyFormat("function([this, that] {\n"
+ " //\n"
+ "});\n");
+ // FIXME: this format is not ideal and we should consider forcing the first
+ // arg onto its own line.
+ verifyFormat("function(a, b, c, //\n"
+ " d, [this, that] {\n"
+ " //\n"
+ " });\n");
+
+ // Multiple lambdas are treated correctly even when there is a short arg0.
+ verifyFormat("SomeFunction(\n"
+ " 1,\n"
+ " [this] {\n"
+ " //\n"
+ " },\n"
+ " [this] {\n"
+ " //\n"
+ " },\n"
+ " 1);\n");
+
+ // More complex introducers.
+ verifyFormat("return [i, args...] {};");
+
+ // Not lambdas.
+ verifyFormat("constexpr char hello[]{\"hello\"};");
+ verifyFormat("double &operator[](int i) { return 0; }\n"
+ "int i;");
+ verifyFormat("std::unique_ptr<int[]> foo() {}");
+ verifyFormat("int i = a[a][a]->f();");
+ verifyFormat("int i = (*b)[a]->f();");
+
+ // Other corner cases.
+ verifyFormat("void f() {\n"
+ " bar([]() {} // Did not respect SpacesBeforeTrailingComments\n"
+ " );\n"
+ "}");
+
+ // Lambdas created through weird macros.
+ verifyFormat("void f() {\n"
+ " MACRO((const AA &a) { return 1; });\n"
+ " MACRO((AA &a) { return 1; });\n"
+ "}");
+
+ verifyFormat("if (blah_blah(whatever, whatever, [] {\n"
+ " doo_dah();\n"
+ " doo_dah();\n"
+ " })) {\n"
+ "}");
+ verifyFormat("if constexpr (blah_blah(whatever, whatever, [] {\n"
+ " doo_dah();\n"
+ " doo_dah();\n"
+ " })) {\n"
+ "}");
+ verifyFormat("if CONSTEXPR (blah_blah(whatever, whatever, [] {\n"
+ " doo_dah();\n"
+ " doo_dah();\n"
+ " })) {\n"
+ "}");
+ verifyFormat("auto lambda = []() {\n"
+ " int a = 2\n"
+ "#if A\n"
+ " + 2\n"
+ "#endif\n"
+ " ;\n"
+ "};");
+
+ // Lambdas with complex multiline introducers.
+ verifyFormat(
+ "aaaaaaaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+ " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]()\n"
+ " -> ::std::unordered_set<\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa> {\n"
+ " //\n"
+ " });");
+
+ FormatStyle DoNotMerge = getLLVMStyle();
+ DoNotMerge.AllowShortLambdasOnASingleLine = FormatStyle::SLS_None;
+ verifyFormat("auto c = []() {\n"
+ " return b;\n"
+ "};",
+ "auto c = []() { return b; };", DoNotMerge);
+ verifyFormat("auto c = []() {\n"
+ "};",
+ " auto c = []() {};", DoNotMerge);
+
+ FormatStyle MergeEmptyOnly = getLLVMStyle();
+ MergeEmptyOnly.AllowShortLambdasOnASingleLine = FormatStyle::SLS_Empty;
+ verifyFormat("auto c = []() {\n"
+ " return b;\n"
+ "};",
+ "auto c = []() {\n"
+ " return b;\n"
+ " };",
+ MergeEmptyOnly);
+ verifyFormat("auto c = []() {};",
+ "auto c = []() {\n"
+ "};",
+ MergeEmptyOnly);
+
+ FormatStyle MergeInline = getLLVMStyle();
+ MergeInline.AllowShortLambdasOnASingleLine = FormatStyle::SLS_Inline;
+ verifyFormat("auto c = []() {\n"
+ " return b;\n"
+ "};",
+ "auto c = []() { return b; };", MergeInline);
+ verifyFormat("function([]() { return b; })", "function([]() { return b; })",
+ MergeInline);
+ verifyFormat("function([]() { return b; }, a)",
+ "function([]() { return b; }, a)", MergeInline);
+ verifyFormat("function(a, []() { return b; })",
+ "function(a, []() { return b; })", MergeInline);
+}
+
+TEST_F(FormatTest, EmptyLinesInLambdas) {
+ verifyFormat("auto lambda = []() {\n"
+ " x(); //\n"
+ "};",
+ "auto lambda = []() {\n"
+ "\n"
+ " x(); //\n"
+ "\n"
+ "};");
+}
+
+TEST_F(FormatTest, FormatsBlocks) {
+ FormatStyle ShortBlocks = getLLVMStyle();
+ ShortBlocks.AllowShortBlocksOnASingleLine = FormatStyle::SBS_Always;
+ verifyFormat("int (^Block)(int, int);", ShortBlocks);
+ verifyFormat("int (^Block1)(int, int) = ^(int i, int j)", ShortBlocks);
+ verifyFormat("void (^block)(int) = ^(id test) { int i; };", ShortBlocks);
+ verifyFormat("void (^block)(int) = ^(int test) { int i; };", ShortBlocks);
+ verifyFormat("void (^block)(int) = ^id(int test) { int i; };", ShortBlocks);
+ verifyFormat("void (^block)(int) = ^int(int test) { int i; };", ShortBlocks);
+
+ verifyFormat("foo(^{ bar(); });", ShortBlocks);
+ verifyFormat("foo(a, ^{ bar(); });", ShortBlocks);
+ verifyFormat("{ void (^block)(Object *x); }", ShortBlocks);
+
+ verifyFormat("[operation setCompletionBlock:^{\n"
+ " [self onOperationDone];\n"
+ "}];");
+ verifyFormat("int i = {[operation setCompletionBlock:^{\n"
+ " [self onOperationDone];\n"
+ "}]};");
+ verifyFormat("[operation setCompletionBlock:^(int *i) {\n"
+ " f();\n"
+ "}];");
+ verifyFormat("int a = [operation block:^int(int *i) {\n"
+ " return 1;\n"
+ "}];");
+ verifyFormat("[myObject doSomethingWith:arg1\n"
+ " aaa:^int(int *a) {\n"
+ " return 1;\n"
+ " }\n"
+ " bbb:f(a * bbbbbbbb)];");
+
+ verifyFormat("[operation setCompletionBlock:^{\n"
+ " [self.delegate newDataAvailable];\n"
+ "}];",
+ getLLVMStyleWithColumns(60));
+ verifyFormat("dispatch_async(_fileIOQueue, ^{\n"
+ " NSString *path = [self sessionFilePath];\n"
+ " if (path) {\n"
+ " // ...\n"
+ " }\n"
+ "});");
+ verifyFormat("[[SessionService sharedService]\n"
+ " loadWindowWithCompletionBlock:^(SessionWindow *window) {\n"
+ " if (window) {\n"
+ " [self windowDidLoad:window];\n"
+ " } else {\n"
+ " [self errorLoadingWindow];\n"
+ " }\n"
+ " }];");
+ verifyFormat("void (^largeBlock)(void) = ^{\n"
+ " // ...\n"
+ "};\n",
+ getLLVMStyleWithColumns(40));
+ verifyFormat("[[SessionService sharedService]\n"
+ " loadWindowWithCompletionBlock: //\n"
+ " ^(SessionWindow *window) {\n"
+ " if (window) {\n"
+ " [self windowDidLoad:window];\n"
+ " } else {\n"
+ " [self errorLoadingWindow];\n"
+ " }\n"
+ " }];",
+ getLLVMStyleWithColumns(60));
+ verifyFormat("[myObject doSomethingWith:arg1\n"
+ " firstBlock:^(Foo *a) {\n"
+ " // ...\n"
+ " int i;\n"
+ " }\n"
+ " secondBlock:^(Bar *b) {\n"
+ " // ...\n"
+ " int i;\n"
+ " }\n"
+ " thirdBlock:^Foo(Bar *b) {\n"
+ " // ...\n"
+ " int i;\n"
+ " }];");
+ verifyFormat("[myObject doSomethingWith:arg1\n"
+ " firstBlock:-1\n"
+ " secondBlock:^(Bar *b) {\n"
+ " // ...\n"
+ " int i;\n"
+ " }];");
+
+ verifyFormat("f(^{\n"
+ " @autoreleasepool {\n"
+ " if (a) {\n"
+ " g();\n"
+ " }\n"
+ " }\n"
+ "});");
+ verifyFormat("Block b = ^int *(A *a, B *b) {}");
+ verifyFormat("BOOL (^aaa)(void) = ^BOOL {\n"
+ "};");
+
+ FormatStyle FourIndent = getLLVMStyle();
+ FourIndent.ObjCBlockIndentWidth = 4;
+ verifyFormat("[operation setCompletionBlock:^{\n"
+ " [self onOperationDone];\n"
+ "}];",
+ FourIndent);
+}
+
+TEST_F(FormatTest, FormatsBlocksWithZeroColumnWidth) {
+ FormatStyle ZeroColumn = getLLVMStyle();
+ ZeroColumn.ColumnLimit = 0;
+
+ verifyFormat("[[SessionService sharedService] "
+ "loadWindowWithCompletionBlock:^(SessionWindow *window) {\n"
+ " if (window) {\n"
+ " [self windowDidLoad:window];\n"
+ " } else {\n"
+ " [self errorLoadingWindow];\n"
+ " }\n"
+ "}];",
+ ZeroColumn);
+ EXPECT_EQ("[[SessionService sharedService]\n"
+ " loadWindowWithCompletionBlock:^(SessionWindow *window) {\n"
+ " if (window) {\n"
+ " [self windowDidLoad:window];\n"
+ " } else {\n"
+ " [self errorLoadingWindow];\n"
+ " }\n"
+ " }];",
+ format("[[SessionService sharedService]\n"
+ "loadWindowWithCompletionBlock:^(SessionWindow *window) {\n"
+ " if (window) {\n"
+ " [self windowDidLoad:window];\n"
+ " } else {\n"
+ " [self errorLoadingWindow];\n"
+ " }\n"
+ "}];",
+ ZeroColumn));
+ verifyFormat("[myObject doSomethingWith:arg1\n"
+ " firstBlock:^(Foo *a) {\n"
+ " // ...\n"
+ " int i;\n"
+ " }\n"
+ " secondBlock:^(Bar *b) {\n"
+ " // ...\n"
+ " int i;\n"
+ " }\n"
+ " thirdBlock:^Foo(Bar *b) {\n"
+ " // ...\n"
+ " int i;\n"
+ " }];",
+ ZeroColumn);
+ verifyFormat("f(^{\n"
+ " @autoreleasepool {\n"
+ " if (a) {\n"
+ " g();\n"
+ " }\n"
+ " }\n"
+ "});",
+ ZeroColumn);
+ verifyFormat("void (^largeBlock)(void) = ^{\n"
+ " // ...\n"
+ "};",
+ ZeroColumn);
+
+ ZeroColumn.AllowShortBlocksOnASingleLine = FormatStyle::SBS_Always;
+ EXPECT_EQ("void (^largeBlock)(void) = ^{ int i; };",
+ format("void (^largeBlock)(void) = ^{ int i; };", ZeroColumn));
+ ZeroColumn.AllowShortBlocksOnASingleLine = FormatStyle::SBS_Never;
+ EXPECT_EQ("void (^largeBlock)(void) = ^{\n"
+ " int i;\n"
+ "};",
+ format("void (^largeBlock)(void) = ^{ int i; };", ZeroColumn));
+}
+
+TEST_F(FormatTest, SupportsCRLF) {
+ EXPECT_EQ("int a;\r\n"
+ "int b;\r\n"
+ "int c;\r\n",
+ format("int a;\r\n"
+ " int b;\r\n"
+ " int c;\r\n",
+ getLLVMStyle()));
+ EXPECT_EQ("int a;\r\n"
+ "int b;\r\n"
+ "int c;\r\n",
+ format("int a;\r\n"
+ " int b;\n"
+ " int c;\r\n",
+ getLLVMStyle()));
+ EXPECT_EQ("int a;\n"
+ "int b;\n"
+ "int c;\n",
+ format("int a;\r\n"
+ " int b;\n"
+ " int c;\n",
+ getLLVMStyle()));
+ EXPECT_EQ("\"aaaaaaa \"\r\n"
+ "\"bbbbbbb\";\r\n",
+ format("\"aaaaaaa bbbbbbb\";\r\n", getLLVMStyleWithColumns(10)));
+ EXPECT_EQ("#define A \\\r\n"
+ " b; \\\r\n"
+ " c; \\\r\n"
+ " d;\r\n",
+ format("#define A \\\r\n"
+ " b; \\\r\n"
+ " c; d; \r\n",
+ getGoogleStyle()));
+
+ EXPECT_EQ("/*\r\n"
+ "multi line block comments\r\n"
+ "should not introduce\r\n"
+ "an extra carriage return\r\n"
+ "*/\r\n",
+ format("/*\r\n"
+ "multi line block comments\r\n"
+ "should not introduce\r\n"
+ "an extra carriage return\r\n"
+ "*/\r\n"));
+ EXPECT_EQ("/*\r\n"
+ "\r\n"
+ "*/",
+ format("/*\r\n"
+ " \r\r\r\n"
+ "*/"));
+
+ FormatStyle style = getLLVMStyle();
+
+ style.DeriveLineEnding = true;
+ style.UseCRLF = false;
+ EXPECT_EQ("union FooBarBazQux {\n"
+ " int foo;\n"
+ " int bar;\n"
+ " int baz;\n"
+ "};",
+ format("union FooBarBazQux {\r\n"
+ " int foo;\n"
+ " int bar;\r\n"
+ " int baz;\n"
+ "};",
+ style));
+ style.UseCRLF = true;
+ EXPECT_EQ("union FooBarBazQux {\r\n"
+ " int foo;\r\n"
+ " int bar;\r\n"
+ " int baz;\r\n"
+ "};",
+ format("union FooBarBazQux {\r\n"
+ " int foo;\n"
+ " int bar;\r\n"
+ " int baz;\n"
+ "};",
+ style));
+
+ style.DeriveLineEnding = false;
+ style.UseCRLF = false;
+ EXPECT_EQ("union FooBarBazQux {\n"
+ " int foo;\n"
+ " int bar;\n"
+ " int baz;\n"
+ " int qux;\n"
+ "};",
+ format("union FooBarBazQux {\r\n"
+ " int foo;\n"
+ " int bar;\r\n"
+ " int baz;\n"
+ " int qux;\r\n"
+ "};",
+ style));
+ style.UseCRLF = true;
+ EXPECT_EQ("union FooBarBazQux {\r\n"
+ " int foo;\r\n"
+ " int bar;\r\n"
+ " int baz;\r\n"
+ " int qux;\r\n"
+ "};",
+ format("union FooBarBazQux {\r\n"
+ " int foo;\n"
+ " int bar;\r\n"
+ " int baz;\n"
+ " int qux;\n"
+ "};",
+ style));
+
+ style.DeriveLineEnding = true;
+ style.UseCRLF = false;
+ EXPECT_EQ("union FooBarBazQux {\r\n"
+ " int foo;\r\n"
+ " int bar;\r\n"
+ " int baz;\r\n"
+ " int qux;\r\n"
+ "};",
+ format("union FooBarBazQux {\r\n"
+ " int foo;\n"
+ " int bar;\r\n"
+ " int baz;\n"
+ " int qux;\r\n"
+ "};",
+ style));
+ style.UseCRLF = true;
+ EXPECT_EQ("union FooBarBazQux {\n"
+ " int foo;\n"
+ " int bar;\n"
+ " int baz;\n"
+ " int qux;\n"
+ "};",
+ format("union FooBarBazQux {\r\n"
+ " int foo;\n"
+ " int bar;\r\n"
+ " int baz;\n"
+ " int qux;\n"
+ "};",
+ style));
+}
+
+TEST_F(FormatTest, MunchSemicolonAfterBlocks) {
+ verifyFormat("MY_CLASS(C) {\n"
+ " int i;\n"
+ " int j;\n"
+ "};");
+}
+
+TEST_F(FormatTest, ConfigurableContinuationIndentWidth) {
+ FormatStyle TwoIndent = getLLVMStyleWithColumns(15);
+ TwoIndent.ContinuationIndentWidth = 2;
+
+ EXPECT_EQ("int i =\n"
+ " longFunction(\n"
+ " arg);",
+ format("int i = longFunction(arg);", TwoIndent));
+
+ FormatStyle SixIndent = getLLVMStyleWithColumns(20);
+ SixIndent.ContinuationIndentWidth = 6;
+
+ EXPECT_EQ("int i =\n"
+ " longFunction(\n"
+ " arg);",
+ format("int i = longFunction(arg);", SixIndent));
+}
+
+TEST_F(FormatTest, WrappedClosingParenthesisIndent) {
+ FormatStyle Style = getLLVMStyle();
+ verifyFormat("int Foo::getter(\n"
+ " //\n"
+ ") const {\n"
+ " return foo;\n"
+ "}",
+ Style);
+ verifyFormat("void Foo::setter(\n"
+ " //\n"
+ ") {\n"
+ " foo = 1;\n"
+ "}",
+ Style);
+}
+
+TEST_F(FormatTest, SpacesInAngles) {
+ FormatStyle Spaces = getLLVMStyle();
+ Spaces.SpacesInAngles = true;
+
+ verifyFormat("static_cast< int >(arg);", Spaces);
+ verifyFormat("template < typename T0, typename T1 > void f() {}", Spaces);
+ verifyFormat("f< int, float >();", Spaces);
+ verifyFormat("template <> g() {}", Spaces);
+ verifyFormat("template < std::vector< int > > f() {}", Spaces);
+ verifyFormat("std::function< void(int, int) > fct;", Spaces);
+ verifyFormat("void inFunction() { std::function< void(int, int) > fct; }",
+ Spaces);
+
+ Spaces.Standard = FormatStyle::LS_Cpp03;
+ Spaces.SpacesInAngles = true;
+ verifyFormat("A< A< int > >();", Spaces);
+
+ Spaces.SpacesInAngles = false;
+ verifyFormat("A<A<int> >();", Spaces);
+
+ Spaces.Standard = FormatStyle::LS_Cpp11;
+ Spaces.SpacesInAngles = true;
+ verifyFormat("A< A< int > >();", Spaces);
+
+ Spaces.SpacesInAngles = false;
+ verifyFormat("A<A<int>>();", Spaces);
+}
+
+TEST_F(FormatTest, SpaceAfterTemplateKeyword) {
+ FormatStyle Style = getLLVMStyle();
+ Style.SpaceAfterTemplateKeyword = false;
+ verifyFormat("template<int> void foo();", Style);
+}
+
+TEST_F(FormatTest, TripleAngleBrackets) {
+ verifyFormat("f<<<1, 1>>>();");
+ verifyFormat("f<<<1, 1, 1, s>>>();");
+ verifyFormat("f<<<a, b, c, d>>>();");
+ EXPECT_EQ("f<<<1, 1>>>();", format("f <<< 1, 1 >>> ();"));
+ verifyFormat("f<param><<<1, 1>>>();");
+ verifyFormat("f<1><<<1, 1>>>();");
+ EXPECT_EQ("f<param><<<1, 1>>>();", format("f< param > <<< 1, 1 >>> ();"));
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaa<<<\n 1, 1>>>();");
+ verifyFormat("aaaaaaaaaaaaaaa<aaaaaaaaa, aaaaaaaaaa, aaaaaaaaaaaaaa>\n"
+ " <<<aaaaaaaaa, aaaaaaaaaa, aaaaaaaaaaaaaaaaaa>>>();");
+}
+
+TEST_F(FormatTest, MergeLessLessAtEnd) {
+ verifyFormat("<<");
+ EXPECT_EQ("< < <", format("\\\n<<<"));
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaallvm::outs() <<");
+ verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaallvm::outs()\n <<");
+}
+
+TEST_F(FormatTest, HandleUnbalancedImplicitBracesAcrossPPBranches) {
+ std::string code = "#if A\n"
+ "#if B\n"
+ "a.\n"
+ "#endif\n"
+ " a = 1;\n"
+ "#else\n"
+ "#endif\n"
+ "#if C\n"
+ "#else\n"
+ "#endif\n";
+ EXPECT_EQ(code, format(code));
+}
+
+TEST_F(FormatTest, HandleConflictMarkers) {
+ // Git/SVN conflict markers.
+ EXPECT_EQ("int a;\n"
+ "void f() {\n"
+ " callme(some(parameter1,\n"
+ "<<<<<<< text by the vcs\n"
+ " parameter2),\n"
+ "||||||| text by the vcs\n"
+ " parameter2),\n"
+ " parameter3,\n"
+ "======= text by the vcs\n"
+ " parameter2, parameter3),\n"
+ ">>>>>>> text by the vcs\n"
+ " otherparameter);\n",
+ format("int a;\n"
+ "void f() {\n"
+ " callme(some(parameter1,\n"
+ "<<<<<<< text by the vcs\n"
+ " parameter2),\n"
+ "||||||| text by the vcs\n"
+ " parameter2),\n"
+ " parameter3,\n"
+ "======= text by the vcs\n"
+ " parameter2,\n"
+ " parameter3),\n"
+ ">>>>>>> text by the vcs\n"
+ " otherparameter);\n"));
+
+ // Perforce markers.
+ EXPECT_EQ("void f() {\n"
+ " function(\n"
+ ">>>> text by the vcs\n"
+ " parameter,\n"
+ "==== text by the vcs\n"
+ " parameter,\n"
+ "==== text by the vcs\n"
+ " parameter,\n"
+ "<<<< text by the vcs\n"
+ " parameter);\n",
+ format("void f() {\n"
+ " function(\n"
+ ">>>> text by the vcs\n"
+ " parameter,\n"
+ "==== text by the vcs\n"
+ " parameter,\n"
+ "==== text by the vcs\n"
+ " parameter,\n"
+ "<<<< text by the vcs\n"
+ " parameter);\n"));
+
+ EXPECT_EQ("<<<<<<<\n"
+ "|||||||\n"
+ "=======\n"
+ ">>>>>>>",
+ format("<<<<<<<\n"
+ "|||||||\n"
+ "=======\n"
+ ">>>>>>>"));
+
+ EXPECT_EQ("<<<<<<<\n"
+ "|||||||\n"
+ "int i;\n"
+ "=======\n"
+ ">>>>>>>",
+ format("<<<<<<<\n"
+ "|||||||\n"
+ "int i;\n"
+ "=======\n"
+ ">>>>>>>"));
+
+ // FIXME: Handle parsing of macros around conflict markers correctly:
+ EXPECT_EQ("#define Macro \\\n"
+ "<<<<<<<\n"
+ "Something \\\n"
+ "|||||||\n"
+ "Else \\\n"
+ "=======\n"
+ "Other \\\n"
+ ">>>>>>>\n"
+ " End int i;\n",
+ format("#define Macro \\\n"
+ "<<<<<<<\n"
+ " Something \\\n"
+ "|||||||\n"
+ " Else \\\n"
+ "=======\n"
+ " Other \\\n"
+ ">>>>>>>\n"
+ " End\n"
+ "int i;\n"));
+}
+
+TEST_F(FormatTest, DisableRegions) {
+ EXPECT_EQ("int i;\n"
+ "// clang-format off\n"
+ " int j;\n"
+ "// clang-format on\n"
+ "int k;",
+ format(" int i;\n"
+ " // clang-format off\n"
+ " int j;\n"
+ " // clang-format on\n"
+ " int k;"));
+ EXPECT_EQ("int i;\n"
+ "/* clang-format off */\n"
+ " int j;\n"
+ "/* clang-format on */\n"
+ "int k;",
+ format(" int i;\n"
+ " /* clang-format off */\n"
+ " int j;\n"
+ " /* clang-format on */\n"
+ " int k;"));
+
+ // Don't reflow comments within disabled regions.
+ EXPECT_EQ("// clang-format off\n"
+ "// long long long long long long line\n"
+ "/* clang-format on */\n"
+ "/* long long long\n"
+ " * long long long\n"
+ " * line */\n"
+ "int i;\n"
+ "/* clang-format off */\n"
+ "/* long long long long long long line */\n",
+ format("// clang-format off\n"
+ "// long long long long long long line\n"
+ "/* clang-format on */\n"
+ "/* long long long long long long line */\n"
+ "int i;\n"
+ "/* clang-format off */\n"
+ "/* long long long long long long line */\n",
+ getLLVMStyleWithColumns(20)));
+}
+
+TEST_F(FormatTest, DoNotCrashOnInvalidInput) {
+ format("? ) =");
+ verifyNoCrash("#define a\\\n /**/}");
+}
+
+TEST_F(FormatTest, FormatsTableGenCode) {
+ FormatStyle Style = getLLVMStyle();
+ Style.Language = FormatStyle::LK_TableGen;
+ verifyFormat("include \"a.td\"\ninclude \"b.td\"", Style);
+}
+
+TEST_F(FormatTest, ArrayOfTemplates) {
+ EXPECT_EQ("auto a = new unique_ptr<int>[10];",
+ format("auto a = new unique_ptr<int > [ 10];"));
+
+ FormatStyle Spaces = getLLVMStyle();
+ Spaces.SpacesInSquareBrackets = true;
+ EXPECT_EQ("auto a = new unique_ptr<int>[ 10 ];",
+ format("auto a = new unique_ptr<int > [10];", Spaces));
+}
+
+TEST_F(FormatTest, ArrayAsTemplateType) {
+ EXPECT_EQ("auto a = unique_ptr<Foo<Bar>[10]>;",
+ format("auto a = unique_ptr < Foo < Bar>[ 10]> ;"));
+
+ FormatStyle Spaces = getLLVMStyle();
+ Spaces.SpacesInSquareBrackets = true;
+ EXPECT_EQ("auto a = unique_ptr<Foo<Bar>[ 10 ]>;",
+ format("auto a = unique_ptr < Foo < Bar>[10]> ;", Spaces));
+}
+
+TEST_F(FormatTest, NoSpaceAfterSuper) { verifyFormat("__super::FooBar();"); }
+
+TEST(FormatStyle, GetStyleWithEmptyFileName) {
+ llvm::vfs::InMemoryFileSystem FS;
+ auto Style1 = getStyle("file", "", "Google", "", &FS);
+ ASSERT_TRUE((bool)Style1);
+ ASSERT_EQ(*Style1, getGoogleStyle());
+}
+
+TEST(FormatStyle, GetStyleOfFile) {
+ llvm::vfs::InMemoryFileSystem FS;
+ // Test 1: format file in the same directory.
+ ASSERT_TRUE(
+ FS.addFile("/a/.clang-format", 0,
+ llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM")));
+ ASSERT_TRUE(
+ FS.addFile("/a/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
+ auto Style1 = getStyle("file", "/a/.clang-format", "Google", "", &FS);
+ ASSERT_TRUE((bool)Style1);
+ ASSERT_EQ(*Style1, getLLVMStyle());
+
+ // Test 2.1: fallback to default.
+ ASSERT_TRUE(
+ FS.addFile("/b/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
+ auto Style2 = getStyle("file", "/b/test.cpp", "Mozilla", "", &FS);
+ ASSERT_TRUE((bool)Style2);
+ ASSERT_EQ(*Style2, getMozillaStyle());
+
+ // Test 2.2: no format on 'none' fallback style.
+ Style2 = getStyle("file", "/b/test.cpp", "none", "", &FS);
+ ASSERT_TRUE((bool)Style2);
+ ASSERT_EQ(*Style2, getNoStyle());
+
+ // Test 2.3: format if config is found with no based style while fallback is
+ // 'none'.
+ ASSERT_TRUE(FS.addFile("/b/.clang-format", 0,
+ llvm::MemoryBuffer::getMemBuffer("IndentWidth: 2")));
+ Style2 = getStyle("file", "/b/test.cpp", "none", "", &FS);
+ ASSERT_TRUE((bool)Style2);
+ ASSERT_EQ(*Style2, getLLVMStyle());
+
+ // Test 2.4: format if yaml with no based style, while fallback is 'none'.
+ Style2 = getStyle("{}", "a.h", "none", "", &FS);
+ ASSERT_TRUE((bool)Style2);
+ ASSERT_EQ(*Style2, getLLVMStyle());
+
+ // Test 3: format file in parent directory.
+ ASSERT_TRUE(
+ FS.addFile("/c/.clang-format", 0,
+ llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
+ ASSERT_TRUE(FS.addFile("/c/sub/sub/sub/test.cpp", 0,
+ llvm::MemoryBuffer::getMemBuffer("int i;")));
+ auto Style3 = getStyle("file", "/c/sub/sub/sub/test.cpp", "LLVM", "", &FS);
+ ASSERT_TRUE((bool)Style3);
+ ASSERT_EQ(*Style3, getGoogleStyle());
+
+ // Test 4: error on invalid fallback style
+ auto Style4 = getStyle("file", "a.h", "KungFu", "", &FS);
+ ASSERT_FALSE((bool)Style4);
+ llvm::consumeError(Style4.takeError());
+
+ // Test 5: error on invalid yaml on command line
+ auto Style5 = getStyle("{invalid_key=invalid_value}", "a.h", "LLVM", "", &FS);
+ ASSERT_FALSE((bool)Style5);
+ llvm::consumeError(Style5.takeError());
+
+ // Test 6: error on invalid style
+ auto Style6 = getStyle("KungFu", "a.h", "LLVM", "", &FS);
+ ASSERT_FALSE((bool)Style6);
+ llvm::consumeError(Style6.takeError());
+
+ // Test 7: found config file, error on parsing it
+ ASSERT_TRUE(
+ FS.addFile("/d/.clang-format", 0,
+ llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM\n"
+ "InvalidKey: InvalidValue")));
+ ASSERT_TRUE(
+ FS.addFile("/d/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
+ auto Style7 = getStyle("file", "/d/.clang-format", "LLVM", "", &FS);
+ ASSERT_FALSE((bool)Style7);
+ llvm::consumeError(Style7.takeError());
+
+ // Test 8: inferred per-language defaults apply.
+ auto StyleTd = getStyle("file", "x.td", "llvm", "", &FS);
+ ASSERT_TRUE((bool)StyleTd);
+ ASSERT_EQ(*StyleTd, getLLVMStyle(FormatStyle::LK_TableGen));
+}
+
+TEST_F(ReplacementTest, FormatCodeAfterReplacements) {
+ // Column limit is 20.
+ std::string Code = "Type *a =\n"
+ " new Type();\n"
+ "g(iiiii, 0, jjjjj,\n"
+ " 0, kkkkk, 0, mm);\n"
+ "int bad = format ;";
+ std::string Expected = "auto a = new Type();\n"
+ "g(iiiii, nullptr,\n"
+ " jjjjj, nullptr,\n"
+ " kkkkk, nullptr,\n"
+ " mm);\n"
+ "int bad = format ;";
+ FileID ID = Context.createInMemoryFile("format.cpp", Code);
+ tooling::Replacements Replaces = toReplacements(
+ {tooling::Replacement(Context.Sources, Context.getLocation(ID, 1, 1), 6,
+ "auto "),
+ tooling::Replacement(Context.Sources, Context.getLocation(ID, 3, 10), 1,
+ "nullptr"),
+ tooling::Replacement(Context.Sources, Context.getLocation(ID, 4, 3), 1,
+ "nullptr"),
+ tooling::Replacement(Context.Sources, Context.getLocation(ID, 4, 13), 1,
+ "nullptr")});
+
+ format::FormatStyle Style = format::getLLVMStyle();
+ Style.ColumnLimit = 20; // Set column limit to 20 to increase readibility.
+ auto FormattedReplaces = formatReplacements(Code, Replaces, Style);
+ EXPECT_TRUE(static_cast<bool>(FormattedReplaces))
+ << llvm::toString(FormattedReplaces.takeError()) << "\n";
+ auto Result = applyAllReplacements(Code, *FormattedReplaces);
+ EXPECT_TRUE(static_cast<bool>(Result));
+ EXPECT_EQ(Expected, *Result);
+}
+
+TEST_F(ReplacementTest, SortIncludesAfterReplacement) {
+ std::string Code = "#include \"a.h\"\n"
+ "#include \"c.h\"\n"
+ "\n"
+ "int main() {\n"
+ " return 0;\n"
+ "}";
+ std::string Expected = "#include \"a.h\"\n"
+ "#include \"b.h\"\n"
+ "#include \"c.h\"\n"
+ "\n"
+ "int main() {\n"
+ " return 0;\n"
+ "}";
+ FileID ID = Context.createInMemoryFile("fix.cpp", Code);
+ tooling::Replacements Replaces = toReplacements(
+ {tooling::Replacement(Context.Sources, Context.getLocation(ID, 1, 1), 0,
+ "#include \"b.h\"\n")});
+
+ format::FormatStyle Style = format::getLLVMStyle();
+ Style.SortIncludes = true;
+ auto FormattedReplaces = formatReplacements(Code, Replaces, Style);
+ EXPECT_TRUE(static_cast<bool>(FormattedReplaces))
+ << llvm::toString(FormattedReplaces.takeError()) << "\n";
+ auto Result = applyAllReplacements(Code, *FormattedReplaces);
+ EXPECT_TRUE(static_cast<bool>(Result));
+ EXPECT_EQ(Expected, *Result);
+}
+
+TEST_F(FormatTest, FormatSortsUsingDeclarations) {
+ EXPECT_EQ("using std::cin;\n"
+ "using std::cout;",
+ format("using std::cout;\n"
+ "using std::cin;",
+ getGoogleStyle()));
+}
+
+TEST_F(FormatTest, UTF8CharacterLiteralCpp03) {
+ format::FormatStyle Style = format::getLLVMStyle();
+ Style.Standard = FormatStyle::LS_Cpp03;
+ // cpp03 recognize this string as identifier u8 and literal character 'a'
+ EXPECT_EQ("auto c = u8 'a';", format("auto c = u8'a';", Style));
+}
+
+TEST_F(FormatTest, UTF8CharacterLiteralCpp11) {
+ // u8'a' is a C++17 feature, utf8 literal character, LS_Cpp11 covers
+ // all modes, including C++11, C++14 and C++17
+ EXPECT_EQ("auto c = u8'a';", format("auto c = u8'a';"));
+}
+
+TEST_F(FormatTest, DoNotFormatLikelyXml) {
+ EXPECT_EQ("<!-- ;> -->", format("<!-- ;> -->", getGoogleStyle()));
+ EXPECT_EQ(" <!-- >; -->", format(" <!-- >; -->", getGoogleStyle()));
+}
+
+TEST_F(FormatTest, StructuredBindings) {
+ // Structured bindings is a C++17 feature.
+ // all modes, including C++11, C++14 and C++17
+ verifyFormat("auto [a, b] = f();");
+ EXPECT_EQ("auto [a, b] = f();", format("auto[a, b] = f();"));
+ EXPECT_EQ("const auto [a, b] = f();", format("const auto[a, b] = f();"));
+ EXPECT_EQ("auto const [a, b] = f();", format("auto const[a, b] = f();"));
+ EXPECT_EQ("auto const volatile [a, b] = f();",
+ format("auto const volatile[a, b] = f();"));
+ EXPECT_EQ("auto [a, b, c] = f();", format("auto [ a , b,c ] = f();"));
+ EXPECT_EQ("auto &[a, b, c] = f();",
+ format("auto &[ a , b,c ] = f();"));
+ EXPECT_EQ("auto &&[a, b, c] = f();",
+ format("auto &&[ a , b,c ] = f();"));
+ EXPECT_EQ("auto const &[a, b] = f();", format("auto const&[a, b] = f();"));
+ EXPECT_EQ("auto const volatile &&[a, b] = f();",
+ format("auto const volatile &&[a, b] = f();"));
+ EXPECT_EQ("auto const &&[a, b] = f();",
+ format("auto const && [a, b] = f();"));
+ EXPECT_EQ("const auto &[a, b] = f();",
+ format("const auto & [a, b] = f();"));
+ EXPECT_EQ("const auto volatile &&[a, b] = f();",
+ format("const auto volatile &&[a, b] = f();"));
+ EXPECT_EQ("volatile const auto &&[a, b] = f();",
+ format("volatile const auto &&[a, b] = f();"));
+ EXPECT_EQ("const auto &&[a, b] = f();",
+ format("const auto && [a, b] = f();"));
+
+ // Make sure we don't mistake structured bindings for lambdas.
+ FormatStyle PointerMiddle = getLLVMStyle();
+ PointerMiddle.PointerAlignment = FormatStyle::PAS_Middle;
+ verifyFormat("auto [a1, b]{A * i};", getGoogleStyle());
+ verifyFormat("auto [a2, b]{A * i};", getLLVMStyle());
+ verifyFormat("auto [a3, b]{A * i};", PointerMiddle);
+ verifyFormat("auto const [a1, b]{A * i};", getGoogleStyle());
+ verifyFormat("auto const [a2, b]{A * i};", getLLVMStyle());
+ verifyFormat("auto const [a3, b]{A * i};", PointerMiddle);
+ verifyFormat("auto const& [a1, b]{A * i};", getGoogleStyle());
+ verifyFormat("auto const &[a2, b]{A * i};", getLLVMStyle());
+ verifyFormat("auto const & [a3, b]{A * i};", PointerMiddle);
+ verifyFormat("auto const&& [a1, b]{A * i};", getGoogleStyle());
+ verifyFormat("auto const &&[a2, b]{A * i};", getLLVMStyle());
+ verifyFormat("auto const && [a3, b]{A * i};", PointerMiddle);
+
+ EXPECT_EQ("for (const auto &&[a, b] : some_range) {\n}",
+ format("for (const auto && [a, b] : some_range) {\n}"));
+ EXPECT_EQ("for (const auto &[a, b] : some_range) {\n}",
+ format("for (const auto & [a, b] : some_range) {\n}"));
+ EXPECT_EQ("for (const auto [a, b] : some_range) {\n}",
+ format("for (const auto[a, b] : some_range) {\n}"));
+ EXPECT_EQ("auto [x, y](expr);", format("auto[x,y] (expr);"));
+ EXPECT_EQ("auto &[x, y](expr);", format("auto & [x,y] (expr);"));
+ EXPECT_EQ("auto &&[x, y](expr);", format("auto && [x,y] (expr);"));
+ EXPECT_EQ("auto const &[x, y](expr);",
+ format("auto const & [x,y] (expr);"));
+ EXPECT_EQ("auto const &&[x, y](expr);",
+ format("auto const && [x,y] (expr);"));
+ EXPECT_EQ("auto [x, y]{expr};", format("auto[x,y] {expr};"));
+ EXPECT_EQ("auto const &[x, y]{expr};",
+ format("auto const & [x,y] {expr};"));
+ EXPECT_EQ("auto const &&[x, y]{expr};",
+ format("auto const && [x,y] {expr};"));
+
+ format::FormatStyle Spaces = format::getLLVMStyle();
+ Spaces.SpacesInSquareBrackets = true;
+ verifyFormat("auto [ a, b ] = f();", Spaces);
+ verifyFormat("auto &&[ a, b ] = f();", Spaces);
+ verifyFormat("auto &[ a, b ] = f();", Spaces);
+ verifyFormat("auto const &&[ a, b ] = f();", Spaces);
+ verifyFormat("auto const &[ a, b ] = f();", Spaces);
+}
+
+TEST_F(FormatTest, FileAndCode) {
+ EXPECT_EQ(FormatStyle::LK_Cpp, guessLanguage("foo.cc", ""));
+ EXPECT_EQ(FormatStyle::LK_ObjC, guessLanguage("foo.m", ""));
+ EXPECT_EQ(FormatStyle::LK_ObjC, guessLanguage("foo.mm", ""));
+ EXPECT_EQ(FormatStyle::LK_Cpp, guessLanguage("foo.h", ""));
+ EXPECT_EQ(FormatStyle::LK_ObjC,
+ guessLanguage("foo.h", "@interface Foo\n@end\n"));
+ EXPECT_EQ(
+ FormatStyle::LK_ObjC,
+ guessLanguage("foo.h", "#define TRY(x, y) @try { x; } @finally { y; }"));
+ EXPECT_EQ(FormatStyle::LK_ObjC,
+ guessLanguage("foo.h", "#define AVAIL(x) @available(x, *))"));
+ EXPECT_EQ(FormatStyle::LK_ObjC, guessLanguage("foo.h", "@class Foo;"));
+ EXPECT_EQ(FormatStyle::LK_Cpp, guessLanguage("foo", ""));
+ EXPECT_EQ(FormatStyle::LK_ObjC,
+ guessLanguage("foo", "@interface Foo\n@end\n"));
+ EXPECT_EQ(FormatStyle::LK_ObjC,
+ guessLanguage("foo.h", "int DoStuff(CGRect rect);\n"));
+ EXPECT_EQ(
+ FormatStyle::LK_ObjC,
+ guessLanguage("foo.h",
+ "#define MY_POINT_MAKE(x, y) CGPointMake((x), (y));\n"));
+ EXPECT_EQ(
+ FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "#define FOO(...) auto bar = [] __VA_ARGS__;"));
+}
+
+TEST_F(FormatTest, GuessLanguageWithCpp11AttributeSpecifiers) {
+ EXPECT_EQ(FormatStyle::LK_Cpp, guessLanguage("foo.h", "[[noreturn]];"));
+ EXPECT_EQ(FormatStyle::LK_ObjC,
+ guessLanguage("foo.h", "array[[calculator getIndex]];"));
+ EXPECT_EQ(FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "[[noreturn, deprecated(\"so sorry\")]];"));
+ EXPECT_EQ(
+ FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "[[noreturn, deprecated(\"gone, sorry\")]];"));
+ EXPECT_EQ(FormatStyle::LK_ObjC,
+ guessLanguage("foo.h", "[[noreturn foo] bar];"));
+ EXPECT_EQ(FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "[[clang::fallthrough]];"));
+ EXPECT_EQ(FormatStyle::LK_ObjC,
+ guessLanguage("foo.h", "[[clang:fallthrough] foo];"));
+ EXPECT_EQ(FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "[[gsl::suppress(\"type\")]];"));
+ EXPECT_EQ(FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "[[using clang: fallthrough]];"));
+ EXPECT_EQ(FormatStyle::LK_ObjC,
+ guessLanguage("foo.h", "[[abusing clang:fallthrough] bar];"));
+ EXPECT_EQ(FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "[[using gsl: suppress(\"type\")]];"));
+ EXPECT_EQ(
+ FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "for (auto &&[endpoint, stream] : streams_)"));
+ EXPECT_EQ(
+ FormatStyle::LK_Cpp,
+ guessLanguage("foo.h",
+ "[[clang::callable_when(\"unconsumed\", \"unknown\")]]"));
+ EXPECT_EQ(FormatStyle::LK_Cpp, guessLanguage("foo.h", "[[foo::bar, ...]]"));
+}
+
+TEST_F(FormatTest, GuessLanguageWithCaret) {
+ EXPECT_EQ(FormatStyle::LK_Cpp, guessLanguage("foo.h", "FOO(^);"));
+ EXPECT_EQ(FormatStyle::LK_Cpp, guessLanguage("foo.h", "FOO(^, Bar);"));
+ EXPECT_EQ(FormatStyle::LK_ObjC,
+ guessLanguage("foo.h", "int(^)(char, float);"));
+ EXPECT_EQ(FormatStyle::LK_ObjC,
+ guessLanguage("foo.h", "int(^foo)(char, float);"));
+ EXPECT_EQ(FormatStyle::LK_ObjC,
+ guessLanguage("foo.h", "int(^foo[10])(char, float);"));
+ EXPECT_EQ(FormatStyle::LK_ObjC,
+ guessLanguage("foo.h", "int(^foo[kNumEntries])(char, float);"));
+ EXPECT_EQ(
+ FormatStyle::LK_ObjC,
+ guessLanguage("foo.h", "int(^foo[(kNumEntries + 10)])(char, float);"));
+}
+
+TEST_F(FormatTest, GuessedLanguageWithInlineAsmClobbers) {
+ EXPECT_EQ(FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "void f() {\n"
+ " asm (\"mov %[e], %[d]\"\n"
+ " : [d] \"=rm\" (d)\n"
+ " [e] \"rm\" (*e));\n"
+ "}"));
+ EXPECT_EQ(FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "void f() {\n"
+ " _asm (\"mov %[e], %[d]\"\n"
+ " : [d] \"=rm\" (d)\n"
+ " [e] \"rm\" (*e));\n"
+ "}"));
+ EXPECT_EQ(FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "void f() {\n"
+ " __asm (\"mov %[e], %[d]\"\n"
+ " : [d] \"=rm\" (d)\n"
+ " [e] \"rm\" (*e));\n"
+ "}"));
+ EXPECT_EQ(FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "void f() {\n"
+ " __asm__ (\"mov %[e], %[d]\"\n"
+ " : [d] \"=rm\" (d)\n"
+ " [e] \"rm\" (*e));\n"
+ "}"));
+ EXPECT_EQ(FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "void f() {\n"
+ " asm (\"mov %[e], %[d]\"\n"
+ " : [d] \"=rm\" (d),\n"
+ " [e] \"rm\" (*e));\n"
+ "}"));
+ EXPECT_EQ(FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "void f() {\n"
+ " asm volatile (\"mov %[e], %[d]\"\n"
+ " : [d] \"=rm\" (d)\n"
+ " [e] \"rm\" (*e));\n"
+ "}"));
+}
+
+TEST_F(FormatTest, GuessLanguageWithChildLines) {
+ EXPECT_EQ(FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "#define FOO ({ std::string s; })"));
+ EXPECT_EQ(FormatStyle::LK_ObjC,
+ guessLanguage("foo.h", "#define FOO ({ NSString *s; })"));
+ EXPECT_EQ(
+ FormatStyle::LK_Cpp,
+ guessLanguage("foo.h", "#define FOO ({ foo(); ({ std::string s; }) })"));
+ EXPECT_EQ(
+ FormatStyle::LK_ObjC,
+ guessLanguage("foo.h", "#define FOO ({ foo(); ({ NSString *s; }) })"));
+}
+
+TEST_F(FormatTest, TypenameMacros) {
+ std::vector<std::string> TypenameMacros = {"STACK_OF", "LIST", "TAILQ_ENTRY"};
+
+ // Test case reported in https://bugs.llvm.org/show_bug.cgi?id=30353
+ FormatStyle Google = getGoogleStyleWithColumns(0);
+ Google.TypenameMacros = TypenameMacros;
+ verifyFormat("struct foo {\n"
+ " int bar;\n"
+ " TAILQ_ENTRY(a) bleh;\n"
+ "};",
+ Google);
+
+ FormatStyle Macros = getLLVMStyle();
+ Macros.TypenameMacros = TypenameMacros;
+
+ verifyFormat("STACK_OF(int) a;", Macros);
+ verifyFormat("STACK_OF(int) *a;", Macros);
+ verifyFormat("STACK_OF(int const *) *a;", Macros);
+ verifyFormat("STACK_OF(int *const) *a;", Macros);
+ verifyFormat("STACK_OF(int, string) a;", Macros);
+ verifyFormat("STACK_OF(LIST(int)) a;", Macros);
+ verifyFormat("STACK_OF(LIST(int)) a, b;", Macros);
+ verifyFormat("for (LIST(int) *a = NULL; a;) {\n}", Macros);
+ verifyFormat("STACK_OF(int) f(LIST(int) *arg);", Macros);
+
+ Macros.PointerAlignment = FormatStyle::PAS_Left;
+ verifyFormat("STACK_OF(int)* a;", Macros);
+ verifyFormat("STACK_OF(int*)* a;", Macros);
+}
+
+TEST_F(FormatTest, AmbersandInLamda) {
+ // Test case reported in https://bugs.llvm.org/show_bug.cgi?id=41899
+ FormatStyle AlignStyle = getLLVMStyle();
+ AlignStyle.PointerAlignment = FormatStyle::PAS_Left;
+ verifyFormat("auto lambda = [&a = a]() { a = 2; };", AlignStyle);
+ AlignStyle.PointerAlignment = FormatStyle::PAS_Right;
+ verifyFormat("auto lambda = [&a = a]() { a = 2; };", AlignStyle);
+}
+
+TEST_F(FormatTest, SpacesInConditionalStatement) {
+ FormatStyle Spaces = getLLVMStyle();
+ Spaces.SpacesInConditionalStatement = true;
+ verifyFormat("for ( int i = 0; i; i++ )\n continue;", Spaces);
+ verifyFormat("if ( !a )\n return;", Spaces);
+ verifyFormat("if ( a )\n return;", Spaces);
+ verifyFormat("if constexpr ( a )\n return;", Spaces);
+ verifyFormat("switch ( a )\ncase 1:\n return;", Spaces);
+ verifyFormat("while ( a )\n return;", Spaces);
+ verifyFormat("while ( (a && b) )\n return;", Spaces);
+ verifyFormat("do {\n} while ( 1 != 0 );", Spaces);
+ verifyFormat("try {\n} catch ( const std::exception & ) {\n}", Spaces);
+ // Check that space on the left of "::" is inserted as expected at beginning
+ // of condition.
+ verifyFormat("while ( ::func() )\n return;", Spaces);
+}
+
+TEST_F(FormatTest, AlternativeOperators) {
+ // Test case for ensuring alternate operators are not
+ // combined with their right most neighbour.
+ verifyFormat("int a and b;");
+ verifyFormat("int a and_eq b;");
+ verifyFormat("int a bitand b;");
+ verifyFormat("int a bitor b;");
+ verifyFormat("int a compl b;");
+ verifyFormat("int a not b;");
+ verifyFormat("int a not_eq b;");
+ verifyFormat("int a or b;");
+ verifyFormat("int a xor b;");
+ verifyFormat("int a xor_eq b;");
+ verifyFormat("return this not_eq bitand other;");
+ verifyFormat("bool operator not_eq(const X bitand other)");
+
+ verifyFormat("int a and 5;");
+ verifyFormat("int a and_eq 5;");
+ verifyFormat("int a bitand 5;");
+ verifyFormat("int a bitor 5;");
+ verifyFormat("int a compl 5;");
+ verifyFormat("int a not 5;");
+ verifyFormat("int a not_eq 5;");
+ verifyFormat("int a or 5;");
+ verifyFormat("int a xor 5;");
+ verifyFormat("int a xor_eq 5;");
+
+ verifyFormat("int a compl(5);");
+ verifyFormat("int a not(5);");
+
+ /* FIXME handle alternate tokens
+ * https://en.cppreference.com/w/cpp/language/operator_alternative
+ // alternative tokens
+ verifyFormat("compl foo();"); // ~foo();
+ verifyFormat("foo() <%%>;"); // foo();
+ verifyFormat("void foo() <%%>;"); // void foo(){}
+ verifyFormat("int a <:1:>;"); // int a[1];[
+ verifyFormat("%:define ABC abc"); // #define ABC abc
+ verifyFormat("%:%:"); // ##
+ */
+}
+
+TEST_F(FormatTest, STLWhileNotDefineChed) {
+ verifyFormat("#if defined(while)\n"
+ "#define while EMIT WARNING C4005\n"
+ "#endif // while");
+}
+
+TEST_F(FormatTest, OperatorSpacing) {
+ FormatStyle Style = getLLVMStyle();
+ Style.PointerAlignment = FormatStyle::PAS_Right;
+ verifyFormat("Foo::operator*();", Style);
+ verifyFormat("Foo::operator void *();", Style);
+ verifyFormat("Foo::operator()(void *);", Style);
+ verifyFormat("Foo::operator*(void *);", Style);
+ verifyFormat("Foo::operator*();", Style);
+ verifyFormat("operator*(int (*)(), class Foo);", Style);
+
+ verifyFormat("Foo::operator&();", Style);
+ verifyFormat("Foo::operator void &();", Style);
+ verifyFormat("Foo::operator()(void &);", Style);
+ verifyFormat("Foo::operator&(void &);", Style);
+ verifyFormat("Foo::operator&();", Style);
+ verifyFormat("operator&(int (&)(), class Foo);", Style);
+
+ verifyFormat("Foo::operator&&();", Style);
+ verifyFormat("Foo::operator void &&();", Style);
+ verifyFormat("Foo::operator()(void &&);", Style);
+ verifyFormat("Foo::operator&&(void &&);", Style);
+ verifyFormat("Foo::operator&&();", Style);
+ verifyFormat("operator&&(int(&&)(), class Foo);", Style);
+
+ Style.PointerAlignment = FormatStyle::PAS_Left;
+ verifyFormat("Foo::operator*();", Style);
+ verifyFormat("Foo::operator void*();", Style);
+ verifyFormat("Foo::operator/*comment*/ void*();", Style);
+ verifyFormat("Foo::operator/*a*/ const /*b*/ void*();", Style);
+ verifyFormat("Foo::operator/*a*/ volatile /*b*/ void*();", Style);
+ verifyFormat("Foo::operator()(void*);", Style);
+ verifyFormat("Foo::operator*(void*);", Style);
+ verifyFormat("Foo::operator*();", Style);
+ verifyFormat("operator*(int (*)(), class Foo);", Style);
+
+ verifyFormat("Foo::operator&();", Style);
+ verifyFormat("Foo::operator void&();", Style);
+ verifyFormat("Foo::operator/*comment*/ void&();", Style);
+ verifyFormat("Foo::operator/*a*/ const /*b*/ void&();", Style);
+ verifyFormat("Foo::operator/*a*/ volatile /*b*/ void&();", Style);
+ verifyFormat("Foo::operator()(void&);", Style);
+ verifyFormat("Foo::operator&(void&);", Style);
+ verifyFormat("Foo::operator&();", Style);
+ verifyFormat("operator&(int (&)(), class Foo);", Style);
+
+ verifyFormat("Foo::operator&&();", Style);
+ verifyFormat("Foo::operator void&&();", Style);
+ verifyFormat("Foo::operator/*comment*/ void&&();", Style);
+ verifyFormat("Foo::operator/*a*/ const /*b*/ void&&();", Style);
+ verifyFormat("Foo::operator/*a*/ volatile /*b*/ void&&();", Style);
+ verifyFormat("Foo::operator()(void&&);", Style);
+ verifyFormat("Foo::operator&&(void&&);", Style);
+ verifyFormat("Foo::operator&&();", Style);
+ verifyFormat("operator&&(int(&&)(), class Foo);", Style);
+
+ Style.PointerAlignment = FormatStyle::PAS_Middle;
+ verifyFormat("Foo::operator*();", Style);
+ verifyFormat("Foo::operator void *();", Style);
+ verifyFormat("Foo::operator()(void *);", Style);
+ verifyFormat("Foo::operator*(void *);", Style);
+ verifyFormat("Foo::operator*();", Style);
+ verifyFormat("operator*(int (*)(), class Foo);", Style);
+
+ verifyFormat("Foo::operator&();", Style);
+ verifyFormat("Foo::operator void &();", Style);
+ verifyFormat("Foo::operator()(void &);", Style);
+ verifyFormat("Foo::operator&(void &);", Style);
+ verifyFormat("Foo::operator&();", Style);
+ verifyFormat("operator&(int (&)(), class Foo);", Style);
+
+ verifyFormat("Foo::operator&&();", Style);
+ verifyFormat("Foo::operator void &&();", Style);
+ verifyFormat("Foo::operator()(void &&);", Style);
+ verifyFormat("Foo::operator&&(void &&);", Style);
+ verifyFormat("Foo::operator&&();", Style);
+ verifyFormat("operator&&(int(&&)(), class Foo);", Style);
+}
+
+} // namespace
+} // namespace format
+} // namespace clang
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.