mirror of
https://github.com/RPCS3/llvm.git
synced 2026-01-31 01:25:19 +01:00
213d3d3c81
We have need to reuse this functionality, including making additional generic stream types that are smarter about how and when they copy memory versus referencing the original memory. So all of these structures belong in the common library rather than being pdb specific. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270751 91177308-0d34-0410-b5e6-96231b3b80d8
58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
//===- StreamReader.h - Reads bytes and objects from a stream ---*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_DEBUGINFO_CODEVIEW_STREAMREADER_H
|
|
#define LLVM_DEBUGINFO_CODEVIEW_STREAMREADER_H
|
|
|
|
#include "llvm/ADT/ArrayRef.h"
|
|
#include "llvm/DebugInfo/CodeView/StreamInterface.h"
|
|
#include "llvm/Support/Endian.h"
|
|
#include "llvm/Support/Error.h"
|
|
|
|
#include <string>
|
|
|
|
namespace llvm {
|
|
namespace codeview {
|
|
|
|
class StreamReader {
|
|
public:
|
|
StreamReader(const StreamInterface &S);
|
|
|
|
Error readBytes(MutableArrayRef<uint8_t> Buffer);
|
|
Error readInteger(uint32_t &Dest);
|
|
Error readZeroString(std::string &Dest);
|
|
|
|
template <typename T> Error readObject(T *Dest) {
|
|
MutableArrayRef<uint8_t> Buffer(reinterpret_cast<uint8_t *>(Dest),
|
|
sizeof(T));
|
|
return readBytes(Buffer);
|
|
}
|
|
|
|
template <typename T> Error readArray(MutableArrayRef<T> Array) {
|
|
MutableArrayRef<uint8_t> Casted(reinterpret_cast<uint8_t *>(Array.data()),
|
|
Array.size() * sizeof(T));
|
|
return readBytes(Casted);
|
|
}
|
|
|
|
Error getArrayRef(ArrayRef<uint8_t> &Array, uint32_t Length);
|
|
|
|
void setOffset(uint32_t Off) { Offset = Off; }
|
|
uint32_t getOffset() const { return Offset; }
|
|
uint32_t getLength() const { return Stream.getLength(); }
|
|
uint32_t bytesRemaining() const { return getLength() - getOffset(); }
|
|
|
|
private:
|
|
const StreamInterface &Stream;
|
|
uint32_t Offset;
|
|
};
|
|
} // namespace codeview
|
|
} // namespace llvm
|
|
|
|
#endif // LLVM_DEBUGINFO_CODEVIEW_STREAMREADER_H
|