Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

1 files changed, 203 insertions, 0 deletions

diff --git a/gnu/llvm/clang/unittests/Tooling/SourceCodeTest.cpp b/gnu/llvm/clang/unittests/Tooling/SourceCodeTest.cpp
new file mode 100644
index 00000000000..eb28d7cf27d
--- /dev/null
+++ b/gnu/llvm/clang/unittests/Tooling/SourceCodeTest.cpp
@@ -0,0 +1,203 @@
+//===- unittest/Tooling/SourceCodeTest.cpp --------------------------------===//
+//
+// 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/Tooling/Transformer/SourceCode.h"
+#include "TestVisitor.h"
+#include "clang/Basic/Diagnostic.h"
+#include "llvm/Testing/Support/Annotations.h"
+#include "llvm/Testing/Support/SupportHelpers.h"
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+using namespace clang;
+
+using llvm::ValueIs;
+using tooling::getExtendedText;
+using tooling::getRangeForEdit;
+using tooling::getText;
+
+namespace {
+
+struct IntLitVisitor : TestVisitor<IntLitVisitor> {
+  bool VisitIntegerLiteral(IntegerLiteral *Expr) {
+    OnIntLit(Expr, Context);
+    return true;
+  }
+
+  std::function<void(IntegerLiteral *, ASTContext *Context)> OnIntLit;
+};
+
+struct CallsVisitor : TestVisitor<CallsVisitor> {
+  bool VisitCallExpr(CallExpr *Expr) {
+    OnCall(Expr, Context);
+    return true;
+  }
+
+  std::function<void(CallExpr *, ASTContext *Context)> OnCall;
+};
+
+// Equality matcher for `clang::CharSourceRange`, which lacks `operator==`.
+MATCHER_P(EqualsRange, R, "") {
+  return arg.isTokenRange() == R.isTokenRange() &&
+         arg.getBegin() == R.getBegin() && arg.getEnd() == R.getEnd();
+}
+
+static ::testing::Matcher<CharSourceRange> AsRange(const SourceManager &SM,
+                                                   llvm::Annotations::Range R) {
+  return EqualsRange(CharSourceRange::getCharRange(
+      SM.getLocForStartOfFile(SM.getMainFileID()).getLocWithOffset(R.Begin),
+      SM.getLocForStartOfFile(SM.getMainFileID()).getLocWithOffset(R.End)));
+}
+
+TEST(SourceCodeTest, getText) {
+  CallsVisitor Visitor;
+
+  Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
+    EXPECT_EQ("foo(x, y)", getText(*CE, *Context));
+  };
+  Visitor.runOver("void foo(int x, int y) { foo(x, y); }");
+
+  Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
+    EXPECT_EQ("APPLY(foo, x, y)", getText(*CE, *Context));
+  };
+  Visitor.runOver("#define APPLY(f, x, y) f(x, y)\n"
+                  "void foo(int x, int y) { APPLY(foo, x, y); }");
+}
+
+TEST(SourceCodeTest, getTextWithMacro) {
+  CallsVisitor Visitor;
+
+  Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
+    EXPECT_EQ("F OO", getText(*CE, *Context));
+    Expr *P0 = CE->getArg(0);
+    Expr *P1 = CE->getArg(1);
+    EXPECT_EQ("", getText(*P0, *Context));
+    EXPECT_EQ("", getText(*P1, *Context));
+  };
+  Visitor.runOver("#define F foo(\n"
+                  "#define OO x, y)\n"
+                  "void foo(int x, int y) { F OO ; }");
+
+  Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
+    EXPECT_EQ("", getText(*CE, *Context));
+    Expr *P0 = CE->getArg(0);
+    Expr *P1 = CE->getArg(1);
+    EXPECT_EQ("x", getText(*P0, *Context));
+    EXPECT_EQ("y", getText(*P1, *Context));
+  };
+  Visitor.runOver("#define FOO(x, y) (void)x; (void)y; foo(x, y);\n"
+                  "void foo(int x, int y) { FOO(x,y) }");
+}
+
+TEST(SourceCodeTest, getExtendedText) {
+  CallsVisitor Visitor;
+
+  Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
+    EXPECT_EQ("foo(x, y);",
+              getExtendedText(*CE, tok::TokenKind::semi, *Context));
+
+    Expr *P0 = CE->getArg(0);
+    Expr *P1 = CE->getArg(1);
+    EXPECT_EQ("x", getExtendedText(*P0, tok::TokenKind::semi, *Context));
+    EXPECT_EQ("x,", getExtendedText(*P0, tok::TokenKind::comma, *Context));
+    EXPECT_EQ("y", getExtendedText(*P1, tok::TokenKind::semi, *Context));
+  };
+  Visitor.runOver("void foo(int x, int y) { foo(x, y); }");
+  Visitor.runOver("void foo(int x, int y) { if (true) foo(x, y); }");
+  Visitor.runOver("int foo(int x, int y) { if (true) return 3 + foo(x, y); }");
+  Visitor.runOver("void foo(int x, int y) { for (foo(x, y);;) ++x; }");
+  Visitor.runOver(
+      "bool foo(int x, int y) { for (;foo(x, y);) x = 1; return true; }");
+
+  Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
+    EXPECT_EQ("foo()", getExtendedText(*CE, tok::TokenKind::semi, *Context));
+  };
+  Visitor.runOver("bool foo() { if (foo()) return true; return false; }");
+  Visitor.runOver("void foo() { int x; for (;; foo()) ++x; }");
+  Visitor.runOver("int foo() { return foo() + 3; }");
+}
+
+TEST(SourceCodeTest, EditRangeWithMacroExpansionsShouldSucceed) {
+  // The call expression, whose range we are extracting, includes two macro
+  // expansions.
+  llvm::Annotations Code(R"cpp(
+#define M(a) a * 13
+int foo(int x, int y);
+int a = $r[[foo(M(1), M(2))]];
+)cpp");
+
+  CallsVisitor Visitor;
+
+  Visitor.OnCall = [&Code](CallExpr *CE, ASTContext *Context) {
+    auto Range = CharSourceRange::getTokenRange(CE->getSourceRange());
+    EXPECT_THAT(getRangeForEdit(Range, *Context),
+                ValueIs(AsRange(Context->getSourceManager(), Code.range("r"))));
+  };
+  Visitor.runOver(Code.code());
+}
+
+TEST(SourceCodeTest, EditWholeMacroExpansionShouldSucceed) {
+  llvm::Annotations Code(R"cpp(
+#define FOO 10
+int a = $r[[FOO]];
+)cpp");
+
+  IntLitVisitor Visitor;
+  Visitor.OnIntLit = [&Code](IntegerLiteral *Expr, ASTContext *Context) {
+    auto Range = CharSourceRange::getTokenRange(Expr->getSourceRange());
+    EXPECT_THAT(getRangeForEdit(Range, *Context),
+                ValueIs(AsRange(Context->getSourceManager(), Code.range("r"))));
+  };
+  Visitor.runOver(Code.code());
+}
+
+TEST(SourceCodeTest, EditPartialMacroExpansionShouldFail) {
+  std::string Code = R"cpp(
+#define BAR 10+
+int c = BAR 3.0;
+)cpp";
+
+  IntLitVisitor Visitor;
+  Visitor.OnIntLit = [](IntegerLiteral *Expr, ASTContext *Context) {
+    auto Range = CharSourceRange::getTokenRange(Expr->getSourceRange());
+    EXPECT_FALSE(getRangeForEdit(Range, *Context).hasValue());
+  };
+  Visitor.runOver(Code);
+}
+
+TEST(SourceCodeTest, EditWholeMacroArgShouldSucceed) {
+  llvm::Annotations Code(R"cpp(
+#define FOO(a) a + 7.0;
+int a = FOO($r[[10]]);
+)cpp");
+
+  IntLitVisitor Visitor;
+  Visitor.OnIntLit = [&Code](IntegerLiteral *Expr, ASTContext *Context) {
+    auto Range = CharSourceRange::getTokenRange(Expr->getSourceRange());
+    EXPECT_THAT(getRangeForEdit(Range, *Context),
+                ValueIs(AsRange(Context->getSourceManager(), Code.range("r"))));
+  };
+  Visitor.runOver(Code.code());
+}
+
+TEST(SourceCodeTest, EditPartialMacroArgShouldSucceed) {
+  llvm::Annotations Code(R"cpp(
+#define FOO(a) a + 7.0;
+int a = FOO($r[[10]] + 10.0);
+)cpp");
+
+  IntLitVisitor Visitor;
+  Visitor.OnIntLit = [&Code](IntegerLiteral *Expr, ASTContext *Context) {
+    auto Range = CharSourceRange::getTokenRange(Expr->getSourceRange());
+    EXPECT_THAT(getRangeForEdit(Range, *Context),
+                ValueIs(AsRange(Context->getSourceManager(), Code.range("r"))));
+  };
+  Visitor.runOver(Code.code());
+}
+
+} // end anonymous namespace