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//===-- PragmaCommentHandler.cpp - find all symbols -----------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "PragmaCommentHandler.h"
#include "FindAllSymbols.h"
#include "HeaderMapCollector.h"
#include "clang/Lex/Preprocessor.h"
#include "llvm/Support/Regex.h"
namespace clang {
namespace find_all_symbols {
namespace {
const char IWYUPragma[] = "// IWYU pragma: private, include ";
} // namespace
bool PragmaCommentHandler::HandleComment(Preprocessor &PP, SourceRange Range) {
StringRef Text =
Lexer::getSourceText(CharSourceRange::getCharRange(Range),
PP.getSourceManager(), PP.getLangOpts());
size_t Pos = Text.find(IWYUPragma);
if (Pos == StringRef::npos)
return false;
StringRef RemappingFilePath = Text.substr(Pos + std::strlen(IWYUPragma));
Collector->addHeaderMapping(
PP.getSourceManager().getFilename(Range.getBegin()),
RemappingFilePath.trim("\"<>"));
return false;
}
} // namespace find_all_symbols
} // namespace clang
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