1 //===-- FileRemapper.h - File Remapping Helper ------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef LLVM_CLANG_ARCMIGRATE_FILEREMAPPER_H
11 #define LLVM_CLANG_ARCMIGRATE_FILEREMAPPER_H
13 #include "clang/Basic/LLVM.h"
14 #include "llvm/ADT/OwningPtr.h"
15 #include "llvm/ADT/PointerUnion.h"
16 #include "llvm/ADT/DenseMap.h"
17 #include "llvm/ADT/StringRef.h"
26 class DiagnosticsEngine;
27 class CompilerInvocation;
32 // FIXME: Reuse the same FileManager for multiple ASTContexts.
33 llvm::OwningPtr<FileManager> FileMgr;
35 typedef llvm::PointerUnion<const FileEntry *, llvm::MemoryBuffer *> Target;
36 typedef llvm::DenseMap<const FileEntry *, Target> MappingsTy;
37 MappingsTy FromToMappings;
39 llvm::DenseMap<const FileEntry *, const FileEntry *> ToFromMappings;
45 bool initFromDisk(StringRef outputDir, DiagnosticsEngine &Diag,
46 bool ignoreIfFilesChanged);
47 bool flushToDisk(StringRef outputDir, DiagnosticsEngine &Diag);
49 bool overwriteOriginal(DiagnosticsEngine &Diag,
50 StringRef outputDir = StringRef());
52 void remap(StringRef filePath, llvm::MemoryBuffer *memBuf);
53 void remap(StringRef filePath, StringRef newPath);
55 void applyMappings(CompilerInvocation &CI) const;
57 void transferMappingsAndClear(CompilerInvocation &CI);
59 void clear(StringRef outputDir = StringRef());
62 void remap(const FileEntry *file, llvm::MemoryBuffer *memBuf);
63 void remap(const FileEntry *file, const FileEntry *newfile);
65 const FileEntry *getOriginalFile(StringRef filePath);
66 void resetTarget(Target &targ);
68 bool report(const Twine &err, DiagnosticsEngine &Diag);
70 std::string getRemapInfoFile(StringRef outputDir);
73 } // end namespace arcmt
75 } // end namespace clang