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authorpatrick <patrick@openbsd.org>2020-08-03 15:06:44 +0000
committerpatrick <patrick@openbsd.org>2020-08-03 15:06:44 +0000
commitb64793999546ed8adebaeebd9d8345d18db8927d (patch)
tree4357c27b561d73b0e089727c6ed659f2ceff5f47 /gnu/llvm/tools/clang/lib/Format/TokenAnnotator.h
parentAdd support for UTF-8 DISPLAY-HINTs with octet length. For now only (diff)
downloadwireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.tar.xz
wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.zip
Remove LLVM 8.0.1 files.
Diffstat (limited to 'gnu/llvm/tools/clang/lib/Format/TokenAnnotator.h')
-rw-r--r--gnu/llvm/tools/clang/lib/Format/TokenAnnotator.h191
1 files changed, 0 insertions, 191 deletions
diff --git a/gnu/llvm/tools/clang/lib/Format/TokenAnnotator.h b/gnu/llvm/tools/clang/lib/Format/TokenAnnotator.h
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-//===--- TokenAnnotator.h - Format C++ code ---------------------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// This file implements a token annotator, i.e. creates
-/// \c AnnotatedTokens out of \c FormatTokens with required extra information.
-///
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CLANG_LIB_FORMAT_TOKENANNOTATOR_H
-#define LLVM_CLANG_LIB_FORMAT_TOKENANNOTATOR_H
-
-#include "UnwrappedLineParser.h"
-#include "clang/Format/Format.h"
-
-namespace clang {
-class SourceManager;
-
-namespace format {
-
-enum LineType {
- LT_Invalid,
- LT_ImportStatement,
- LT_ObjCDecl, // An @interface, @implementation, or @protocol line.
- LT_ObjCMethodDecl,
- LT_ObjCProperty, // An @property line.
- LT_Other,
- LT_PreprocessorDirective,
- LT_VirtualFunctionDecl
-};
-
-class AnnotatedLine {
-public:
- AnnotatedLine(const UnwrappedLine &Line)
- : First(Line.Tokens.front().Tok), Level(Line.Level),
- MatchingOpeningBlockLineIndex(Line.MatchingOpeningBlockLineIndex),
- MatchingClosingBlockLineIndex(Line.MatchingClosingBlockLineIndex),
- InPPDirective(Line.InPPDirective),
- MustBeDeclaration(Line.MustBeDeclaration), MightBeFunctionDecl(false),
- IsMultiVariableDeclStmt(false), Affected(false),
- LeadingEmptyLinesAffected(false), ChildrenAffected(false),
- FirstStartColumn(Line.FirstStartColumn) {
- assert(!Line.Tokens.empty());
-
- // Calculate Next and Previous for all tokens. Note that we must overwrite
- // Next and Previous for every token, as previous formatting runs might have
- // left them in a different state.
- First->Previous = nullptr;
- FormatToken *Current = First;
- for (std::list<UnwrappedLineNode>::const_iterator I = ++Line.Tokens.begin(),
- E = Line.Tokens.end();
- I != E; ++I) {
- const UnwrappedLineNode &Node = *I;
- Current->Next = I->Tok;
- I->Tok->Previous = Current;
- Current = Current->Next;
- Current->Children.clear();
- for (const auto &Child : Node.Children) {
- Children.push_back(new AnnotatedLine(Child));
- Current->Children.push_back(Children.back());
- }
- }
- Last = Current;
- Last->Next = nullptr;
- }
-
- ~AnnotatedLine() {
- for (unsigned i = 0, e = Children.size(); i != e; ++i) {
- delete Children[i];
- }
- FormatToken *Current = First;
- while (Current) {
- Current->Children.clear();
- Current->Role.reset();
- Current = Current->Next;
- }
- }
-
- /// \c true if this line starts with the given tokens in order, ignoring
- /// comments.
- template <typename... Ts> bool startsWith(Ts... Tokens) const {
- return First && First->startsSequence(Tokens...);
- }
-
- /// \c true if this line ends with the given tokens in reversed order,
- /// ignoring comments.
- /// For example, given tokens [T1, T2, T3, ...], the function returns true if
- /// this line is like "... T3 T2 T1".
- template <typename... Ts> bool endsWith(Ts... Tokens) const {
- return Last && Last->endsSequence(Tokens...);
- }
-
- /// \c true if this line looks like a function definition instead of a
- /// function declaration. Asserts MightBeFunctionDecl.
- bool mightBeFunctionDefinition() const {
- assert(MightBeFunctionDecl);
- // FIXME: Line.Last points to other characters than tok::semi
- // and tok::lbrace.
- return !Last->isOneOf(tok::semi, tok::comment);
- }
-
- /// \c true if this line starts a namespace definition.
- bool startsWithNamespace() const {
- return startsWith(tok::kw_namespace) ||
- startsWith(tok::kw_inline, tok::kw_namespace) ||
- startsWith(tok::kw_export, tok::kw_namespace);
- }
-
- FormatToken *First;
- FormatToken *Last;
-
- SmallVector<AnnotatedLine *, 0> Children;
-
- LineType Type;
- unsigned Level;
- size_t MatchingOpeningBlockLineIndex;
- size_t MatchingClosingBlockLineIndex;
- bool InPPDirective;
- bool MustBeDeclaration;
- bool MightBeFunctionDecl;
- bool IsMultiVariableDeclStmt;
-
- /// \c True if this line should be formatted, i.e. intersects directly or
- /// indirectly with one of the input ranges.
- bool Affected;
-
- /// \c True if the leading empty lines of this line intersect with one of the
- /// input ranges.
- bool LeadingEmptyLinesAffected;
-
- /// \c True if one of this line's children intersects with an input range.
- bool ChildrenAffected;
-
- unsigned FirstStartColumn;
-
-private:
- // Disallow copying.
- AnnotatedLine(const AnnotatedLine &) = delete;
- void operator=(const AnnotatedLine &) = delete;
-};
-
-/// Determines extra information about the tokens comprising an
-/// \c UnwrappedLine.
-class TokenAnnotator {
-public:
- TokenAnnotator(const FormatStyle &Style, const AdditionalKeywords &Keywords)
- : Style(Style), Keywords(Keywords) {}
-
- /// Adapts the indent levels of comment lines to the indent of the
- /// subsequent line.
- // FIXME: Can/should this be done in the UnwrappedLineParser?
- void setCommentLineLevels(SmallVectorImpl<AnnotatedLine *> &Lines);
-
- void annotate(AnnotatedLine &Line);
- void calculateFormattingInformation(AnnotatedLine &Line);
-
-private:
- /// Calculate the penalty for splitting before \c Tok.
- unsigned splitPenalty(const AnnotatedLine &Line, const FormatToken &Tok,
- bool InFunctionDecl);
-
- bool spaceRequiredBetween(const AnnotatedLine &Line, const FormatToken &Left,
- const FormatToken &Right);
-
- bool spaceRequiredBefore(const AnnotatedLine &Line, const FormatToken &Right);
-
- bool mustBreakBefore(const AnnotatedLine &Line, const FormatToken &Right);
-
- bool canBreakBefore(const AnnotatedLine &Line, const FormatToken &Right);
-
- bool mustBreakForReturnType(const AnnotatedLine &Line) const;
-
- void printDebugInfo(const AnnotatedLine &Line);
-
- void calculateUnbreakableTailLengths(AnnotatedLine &Line);
-
- const FormatStyle &Style;
-
- const AdditionalKeywords &Keywords;
-};
-
-} // end namespace format
-} // end namespace clang
-
-#endif