1//===-- TestModuleFileExtension.h - Module Extension Tester -----*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8#ifndef LLVM_CLANG_FRONTEND_TESTMODULEFILEEXTENSION_H
9#define LLVM_CLANG_FRONTEND_TESTMODULEFILEEXTENSION_H
10
11#include "clang/Serialization/ModuleFileExtension.h"
12#include "clang/Basic/LLVM.h"
13#include "llvm/ADT/StringRef.h"
14#include "llvm/Bitstream/BitstreamReader.h"
15#include <string>
16
17namespace clang {
18
19/// A module file extension used for testing purposes.
20class TestModuleFileExtension : public ModuleFileExtension {
21  std::string BlockName;
22  unsigned MajorVersion;
23  unsigned MinorVersion;
24  bool Hashed;
25  std::string UserInfo;
26
27  class Writer : public ModuleFileExtensionWriter {
28  public:
29    Writer(ModuleFileExtension *Ext) : ModuleFileExtensionWriter(Ext) { }
30    ~Writer() override;
31
32    void writeExtensionContents(Sema &SemaRef,
33                                llvm::BitstreamWriter &Stream) override;
34  };
35
36  class Reader : public ModuleFileExtensionReader {
37    llvm::BitstreamCursor Stream;
38
39  public:
40    ~Reader() override;
41
42    Reader(ModuleFileExtension *Ext, const llvm::BitstreamCursor &InStream);
43  };
44
45public:
46  TestModuleFileExtension(StringRef BlockName,
47                          unsigned MajorVersion,
48                          unsigned MinorVersion,
49                          bool Hashed,
50                          StringRef UserInfo)
51    : BlockName(BlockName),
52      MajorVersion(MajorVersion), MinorVersion(MinorVersion),
53      Hashed(Hashed), UserInfo(UserInfo) { }
54  ~TestModuleFileExtension() override;
55
56  ModuleFileExtensionMetadata getExtensionMetadata() const override;
57
58  llvm::hash_code hashExtension(llvm::hash_code Code) const override;
59
60  std::unique_ptr<ModuleFileExtensionWriter>
61  createExtensionWriter(ASTWriter &Writer) override;
62
63  std::unique_ptr<ModuleFileExtensionReader>
64  createExtensionReader(const ModuleFileExtensionMetadata &Metadata,
65                        ASTReader &Reader, serialization::ModuleFile &Mod,
66                        const llvm::BitstreamCursor &Stream) override;
67};
68
69} // end namespace clang
70
71#endif // LLVM_CLANG_FRONTEND_TESTMODULEFILEEXTENSION_H
72