From 611ba3ea3300b71eb95dc4e45f20eee5dddd32e1 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Sun, 17 Jul 2011 15:40:56 +0000
Subject: Vendor import of clang trunk r135360:
 http://llvm.org/svn/llvm-project/cfe/trunk@135360

---
 include/clang/ARCMigrate/FileRemapper.h | 76 +++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 include/clang/ARCMigrate/FileRemapper.h

(limited to 'include/clang/ARCMigrate/FileRemapper.h')

diff --git a/include/clang/ARCMigrate/FileRemapper.h b/include/clang/ARCMigrate/FileRemapper.h
new file mode 100644
index 0000000..809f6a5
--- /dev/null
+++ b/include/clang/ARCMigrate/FileRemapper.h
@@ -0,0 +1,76 @@
+//===-- FileRemapper.h - File Remapping Helper ------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_ARCMIGRATE_FILEREMAPPER_H
+#define LLVM_CLANG_ARCMIGRATE_FILEREMAPPER_H
+
+#include "llvm/ADT/OwningPtr.h"
+#include "llvm/ADT/PointerUnion.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/StringRef.h"
+
+namespace llvm {
+  class MemoryBuffer;
+}
+
+namespace clang {
+  class FileManager;
+  class FileEntry;
+  class Diagnostic;
+  class CompilerInvocation;
+
+namespace arcmt {
+
+class FileRemapper {
+  // FIXME: Reuse the same FileManager for multiple ASTContexts.
+  llvm::OwningPtr<FileManager> FileMgr;
+
+  typedef llvm::PointerUnion<const FileEntry *, llvm::MemoryBuffer *> Target;
+  typedef llvm::DenseMap<const FileEntry *, Target> MappingsTy;
+  MappingsTy FromToMappings;
+
+  llvm::DenseMap<const FileEntry *, const FileEntry *> ToFromMappings;
+
+public:
+  FileRemapper();
+  ~FileRemapper();
+  
+  bool initFromDisk(llvm::StringRef outputDir, Diagnostic &Diag,
+                    bool ignoreIfFilesChanged);
+  bool flushToDisk(llvm::StringRef outputDir, Diagnostic &Diag);
+
+  bool overwriteOriginal(Diagnostic &Diag,
+                         llvm::StringRef outputDir = llvm::StringRef());
+
+  void remap(llvm::StringRef filePath, llvm::MemoryBuffer *memBuf);
+  void remap(llvm::StringRef filePath, llvm::StringRef newPath);
+
+  void applyMappings(CompilerInvocation &CI) const;
+
+  void transferMappingsAndClear(CompilerInvocation &CI);
+
+  void clear(llvm::StringRef outputDir = llvm::StringRef());
+
+private:
+  void remap(const FileEntry *file, llvm::MemoryBuffer *memBuf);
+  void remap(const FileEntry *file, const FileEntry *newfile);
+
+  const FileEntry *getOriginalFile(llvm::StringRef filePath);
+  void resetTarget(Target &targ);
+
+  bool report(const std::string &err, Diagnostic &Diag);
+
+  std::string getRemapInfoFile(llvm::StringRef outputDir);
+};
+
+} // end namespace arcmt
+
+}  // end namespace clang
+
+#endif
-- 
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