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This adds method and tests for writing to a PDB stream. With this, even a PDB stream which is discontiguous can be treated as a sequential stream of bytes for the purposes of writing. Reviewed By: ruiu Differential Revision: http://reviews.llvm.org/D21157 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272369 91177308-0d34-0410-b5e6-96231b3b80d8
57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
//===- ByteStream.h - Reads stream data from a byte sequence ----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEBUGINFO_CODEVIEW_BYTESTREAM_H
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#define LLVM_DEBUGINFO_CODEVIEW_BYTESTREAM_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/DebugInfo/CodeView/StreamInterface.h"
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#include "llvm/Support/Error.h"
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#include <cstdint>
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#include <memory>
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#include <type_traits>
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namespace llvm {
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namespace codeview {
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class StreamReader;
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template <bool Writable = false> class ByteStream : public StreamInterface {
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typedef typename std::conditional<Writable, MutableArrayRef<uint8_t>,
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ArrayRef<uint8_t>>::type ArrayType;
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public:
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ByteStream() {}
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explicit ByteStream(ArrayType Data) : Data(Data) {}
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~ByteStream() override {}
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Error readBytes(uint32_t Offset, uint32_t Size,
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ArrayRef<uint8_t> &Buffer) const override;
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Error readLongestContiguousChunk(uint32_t Offset,
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ArrayRef<uint8_t> &Buffer) const override;
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Error writeBytes(uint32_t Offset, ArrayRef<uint8_t> Buffer) const override;
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uint32_t getLength() const override;
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ArrayRef<uint8_t> data() const { return Data; }
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StringRef str() const;
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private:
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ArrayType Data;
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};
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extern template class ByteStream<true>;
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extern template class ByteStream<false>;
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} // end namespace pdb
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} // end namespace llvm
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#endif // LLVM_DEBUGINFO_CODEVIEW_BYTESTREAM_H
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