forked from OSchip/llvm-project
40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
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//===--- LexerUtils.cpp - clang-tidy---------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "LexerUtils.h"
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namespace clang {
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namespace tidy {
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namespace lexer_utils {
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Token getPreviousNonCommentToken(const ASTContext &Context,
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SourceLocation Location) {
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const auto &SourceManager = Context.getSourceManager();
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Token Token;
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Token.setKind(tok::unknown);
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Location = Location.getLocWithOffset(-1);
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auto StartOfFile =
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SourceManager.getLocForStartOfFile(SourceManager.getFileID(Location));
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while (Location != StartOfFile) {
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Location = Lexer::GetBeginningOfToken(Location, SourceManager,
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Context.getLangOpts());
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if (!Lexer::getRawToken(Location, Token, SourceManager,
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Context.getLangOpts()) &&
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!Token.is(tok::comment)) {
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break;
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}
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Location = Location.getLocWithOffset(-1);
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}
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return Token;
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}
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} // namespace lexer_utils
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} // namespace tidy
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} // namespace clang
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