forked from OSchip/llvm-project
86 lines
3.2 KiB
C++
86 lines
3.2 KiB
C++
//===-------- IncludeInserter.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 "IncludeInserter.h"
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#include "clang/Lex/Token.h"
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namespace clang {
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namespace tidy {
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namespace utils {
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class IncludeInserterCallback : public PPCallbacks {
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public:
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explicit IncludeInserterCallback(IncludeInserter *Inserter)
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: Inserter(Inserter) {}
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// Implements PPCallbacks::InclusionDerective(). Records the names and source
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// locations of the inclusions in the main source file being processed.
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void InclusionDirective(SourceLocation HashLocation,
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const Token &IncludeToken, StringRef FileNameRef,
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bool IsAngled, CharSourceRange FileNameRange,
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const FileEntry * /*IncludedFile*/,
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StringRef /*SearchPath*/, StringRef /*RelativePath*/,
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const Module * /*ImportedModule*/) override {
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Inserter->AddInclude(FileNameRef, IsAngled, HashLocation,
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IncludeToken.getEndLoc());
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}
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private:
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IncludeInserter *Inserter;
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};
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IncludeInserter::IncludeInserter(const SourceManager &SourceMgr,
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const LangOptions &LangOpts,
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IncludeSorter::IncludeStyle Style)
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: SourceMgr(SourceMgr), LangOpts(LangOpts), Style(Style) {}
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IncludeInserter::~IncludeInserter() {}
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std::unique_ptr<PPCallbacks> IncludeInserter::CreatePPCallbacks() {
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return llvm::make_unique<IncludeInserterCallback>(this);
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}
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llvm::Optional<FixItHint>
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IncludeInserter::CreateIncludeInsertion(FileID FileID, StringRef Header,
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bool IsAngled) {
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// We assume the same Header will never be included both angled and not
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// angled.
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if (!InsertedHeaders[FileID].insert(Header).second)
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return llvm::None;
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if (IncludeSorterByFile.find(FileID) == IncludeSorterByFile.end()) {
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// This may happen if there have been no preprocessor directives in this
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// file.
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IncludeSorterByFile.insert(std::make_pair(
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FileID,
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llvm::make_unique<IncludeSorter>(
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&SourceMgr, &LangOpts, FileID,
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SourceMgr.getFilename(SourceMgr.getLocForStartOfFile(FileID)),
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Style)));
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}
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return IncludeSorterByFile[FileID]->CreateIncludeInsertion(Header, IsAngled);
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}
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void IncludeInserter::AddInclude(StringRef FileName, bool IsAngled,
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SourceLocation HashLocation,
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SourceLocation EndLocation) {
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FileID FileID = SourceMgr.getFileID(HashLocation);
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if (IncludeSorterByFile.find(FileID) == IncludeSorterByFile.end()) {
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IncludeSorterByFile.insert(std::make_pair(
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FileID, llvm::make_unique<IncludeSorter>(
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&SourceMgr, &LangOpts, FileID,
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SourceMgr.getFilename(HashLocation), Style)));
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}
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IncludeSorterByFile[FileID]->AddInclude(FileName, IsAngled, HashLocation,
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EndLocation);
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}
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} // namespace utils
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} // namespace tidy
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} // namespace clang
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