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 18 namespace llvm { 19 class WritableMemoryBuffer; 20 class MemoryBuffer; 21 class Twine; 22 } // namespace llvm 23 24 namespace lldb_private { 25 class FileSystem; 26 27 class DataBufferLLVM : public DataBuffer { 28 public: 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 49 protected: 50 std::unique_ptr<llvm::MemoryBuffer> Buffer; 51 }; 52 53 class WritableDataBufferLLVM : public WritableDataBuffer { 54 public: 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 76 protected: 77 std::unique_ptr<llvm::WritableMemoryBuffer> Buffer; 78 }; 79 } // namespace lldb_private 80 81 #endif 82