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
21    : public llvm::RTTIExtends<TestModuleFileExtension, ModuleFileExtension> {
22  std::string BlockName;
23  unsigned MajorVersion;
24  unsigned MinorVersion;
25  bool Hashed;
26  std::string UserInfo;
27
28  class Writer : public ModuleFileExtensionWriter {
29  public:
30    Writer(ModuleFileExtension *Ext) : ModuleFileExtensionWriter(Ext) { }
31    ~Writer() override;
32
33    void writeExtensionContents(Sema &SemaRef,
34                                llvm::BitstreamWriter &Stream) override;
35  };
36
37  class Reader : public ModuleFileExtensionReader {
38    llvm::BitstreamCursor Stream;
39
40  public:
41    ~Reader() override;
42
43    Reader(ModuleFileExtension *Ext, const llvm::BitstreamCursor &InStream);
44  };
45
46public:
47  static char ID;
48
49  TestModuleFileExtension(StringRef BlockName, unsigned MajorVersion,
50                          unsigned MinorVersion, bool Hashed,
51                          StringRef UserInfo)
52      : BlockName(BlockName), MajorVersion(MajorVersion),
53        MinorVersion(MinorVersion), Hashed(Hashed), UserInfo(UserInfo) {}
54  ~TestModuleFileExtension() override;
55
56  ModuleFileExtensionMetadata getExtensionMetadata() const override;
57
58  void hashExtension(ExtensionHashBuilder &HBuilder) 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  std::string str() const;
69};
70
71} // end namespace clang
72
73#endif // LLVM_CLANG_FRONTEND_TESTMODULEFILEEXTENSION_H
74