1//===--- DataBufferLLVM.h ---------------------------------------*- 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
9#ifndef LLDB_UTILITY_DATABUFFERLLVM_H
10#define LLDB_UTILITY_DATABUFFERLLVM_H
11
12#include "lldb/Utility/DataBuffer.h"
13#include "lldb/lldb-types.h"
14
15#include <cstdint>
16#include <memory>
17
18namespace llvm {
19class WritableMemoryBuffer;
20class MemoryBuffer;
21class Twine;
22} // namespace llvm
23
24namespace lldb_private {
25class FileSystem;
26
27class DataBufferLLVM : public DataBuffer {
28public:
29  ~DataBufferLLVM() override;
30
31  const uint8_t *GetBytesImpl() const override;
32  lldb::offset_t GetByteSize() const override;
33
34  /// LLVM RTTI support.
35  /// {
36  static char ID;
37  bool isA(const void *ClassID) const override {
38    return ClassID == &ID || DataBuffer::isA(ClassID);
39  }
40  static bool classof(const DataBuffer *data_buffer) {
41    return data_buffer->isA(&ID);
42  }
43  /// }
44
45  /// Construct a DataBufferLLVM from \p Buffer.  \p Buffer must be a valid
46  /// pointer.
47  explicit DataBufferLLVM(std::unique_ptr<llvm::MemoryBuffer> Buffer);
48
49protected:
50  std::unique_ptr<llvm::MemoryBuffer> Buffer;
51};
52
53class WritableDataBufferLLVM : public WritableDataBuffer {
54public:
55  ~WritableDataBufferLLVM() override;
56
57  const uint8_t *GetBytesImpl() const override;
58  lldb::offset_t GetByteSize() const override;
59
60  /// LLVM RTTI support.
61  /// {
62  static char ID;
63  bool isA(const void *ClassID) const override {
64    return ClassID == &ID || WritableDataBuffer::isA(ClassID);
65  }
66  static bool classof(const DataBuffer *data_buffer) {
67    return data_buffer->isA(&ID);
68  }
69  /// }
70
71  /// Construct a DataBufferLLVM from \p Buffer.  \p Buffer must be a valid
72  /// pointer.
73  explicit WritableDataBufferLLVM(
74      std::unique_ptr<llvm::WritableMemoryBuffer> Buffer);
75
76protected:
77  std::unique_ptr<llvm::WritableMemoryBuffer> Buffer;
78};
79} // namespace lldb_private
80
81#endif
82