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78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
//===-- FileRemapper.h - File Remapping Helper ------------------*- C++ -*-===//
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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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#ifndef LLVM_CLANG_ARCMIGRATE_FILEREMAPPER_H
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#define LLVM_CLANG_ARCMIGRATE_FILEREMAPPER_H
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#include "clang/Basic/LLVM.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/PointerUnion.h"
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#include "llvm/ADT/StringRef.h"
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#include <memory>
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namespace llvm {
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class MemoryBuffer;
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}
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namespace clang {
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class FileManager;
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class FileEntry;
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class DiagnosticsEngine;
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class PreprocessorOptions;
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namespace arcmt {
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class FileRemapper {
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// FIXME: Reuse the same FileManager for multiple ASTContexts.
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std::unique_ptr<FileManager> FileMgr;
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typedef llvm::PointerUnion<const FileEntry *, llvm::MemoryBuffer *> Target;
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typedef llvm::DenseMap<const FileEntry *, Target> MappingsTy;
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MappingsTy FromToMappings;
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llvm::DenseMap<const FileEntry *, const FileEntry *> ToFromMappings;
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public:
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FileRemapper();
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~FileRemapper();
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bool initFromDisk(StringRef outputDir, DiagnosticsEngine &Diag,
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bool ignoreIfFilesChanged);
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bool initFromFile(StringRef filePath, DiagnosticsEngine &Diag,
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bool ignoreIfFilesChanged);
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bool flushToDisk(StringRef outputDir, DiagnosticsEngine &Diag);
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bool flushToFile(StringRef outputPath, DiagnosticsEngine &Diag);
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bool overwriteOriginal(DiagnosticsEngine &Diag,
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StringRef outputDir = StringRef());
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void remap(StringRef filePath, std::unique_ptr<llvm::MemoryBuffer> memBuf);
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void applyMappings(PreprocessorOptions &PPOpts) const;
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void clear(StringRef outputDir = StringRef());
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private:
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void remap(const FileEntry *file, std::unique_ptr<llvm::MemoryBuffer> memBuf);
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void remap(const FileEntry *file, const FileEntry *newfile);
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const FileEntry *getOriginalFile(StringRef filePath);
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void resetTarget(Target &targ);
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bool report(const Twine &err, DiagnosticsEngine &Diag);
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std::string getRemapInfoFile(StringRef outputDir);
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};
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} // end namespace arcmt
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} // end namespace clang
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#endif
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