1 //===-- CodeGen/ObjectFilePCHContainerOperations.h - ------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #ifndef LLVM_CLANG_CODEGEN_OBJECT_FILE_PCH_CONTAINER_OPERATIONS_H
11 #define LLVM_CLANG_CODEGEN_OBJECT_FILE_PCH_CONTAINER_OPERATIONS_H
12 
13 #include "clang/Frontend/PCHContainerOperations.h"
14 
15 namespace clang {
16 
17 /// A PCHContainerWriter implementation that uses LLVM to
18 /// wraps Clang modules inside a COFF, ELF, or Mach-O container.
19 class ObjectFilePCHContainerWriter : public PCHContainerWriter {
getFormat()20   StringRef getFormat() const override { return "obj"; }
21 
22   /// Return an ASTConsumer that can be chained with a
23   /// PCHGenerator that produces a wrapper file format
24   /// that also contains full debug info for the module.
25   std::unique_ptr<ASTConsumer> CreatePCHContainerGenerator(
26       CompilerInstance &CI, const std::string &MainFileName,
27       const std::string &OutputFileName, llvm::raw_pwrite_stream *OS,
28       std::shared_ptr<PCHBuffer> Buffer) const override;
29 };
30 
31 /// A PCHContainerReader implementation that uses LLVM to
32 /// wraps Clang modules inside a COFF, ELF, or Mach-O container.
33 class ObjectFilePCHContainerReader : public PCHContainerReader {
getFormat()34   StringRef getFormat() const override { return "obj"; }
35 
36   /// Initialize an llvm::BitstreamReader with the serialized
37   /// AST inside the PCH container Buffer.
38   void ExtractPCH(llvm::MemoryBufferRef Buffer,
39                   llvm::BitstreamReader &StreamFile) const override;
40 };
41 }
42 
43 #endif
44