diff options
Diffstat (limited to 'include/llvm/DebugInfo/MSF/StreamReader.h')
-rw-r--r-- | include/llvm/DebugInfo/MSF/StreamReader.h | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/include/llvm/DebugInfo/MSF/StreamReader.h b/include/llvm/DebugInfo/MSF/StreamReader.h deleted file mode 100644 index fc2ca78dc18f..000000000000 --- a/include/llvm/DebugInfo/MSF/StreamReader.h +++ /dev/null @@ -1,121 +0,0 @@ -//===- 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_MSF_STREAMREADER_H -#define LLVM_DEBUGINFO_MSF_STREAMREADER_H - -#include "llvm/ADT/ArrayRef.h" -#include "llvm/DebugInfo/MSF/MSFError.h" -#include "llvm/DebugInfo/MSF/StreamArray.h" -#include "llvm/DebugInfo/MSF/StreamInterface.h" -#include "llvm/DebugInfo/MSF/StreamRef.h" -#include "llvm/Support/Endian.h" -#include "llvm/Support/Error.h" - -#include <string> - -namespace llvm { -namespace msf { - -class StreamReader { -public: - StreamReader(ReadableStreamRef Stream); - - Error readLongestContiguousChunk(ArrayRef<uint8_t> &Buffer); - Error readBytes(ArrayRef<uint8_t> &Buffer, uint32_t Size); - Error readInteger(uint8_t &Dest); - Error readInteger(uint16_t &Dest); - Error readInteger(uint32_t &Dest); - Error readInteger(uint64_t &Dest); - Error readInteger(int8_t &Dest); - Error readInteger(int16_t &Dest); - Error readInteger(int32_t &Dest); - Error readInteger(int64_t &Dest); - Error readZeroString(StringRef &Dest); - Error readFixedString(StringRef &Dest, uint32_t Length); - Error readStreamRef(ReadableStreamRef &Ref); - Error readStreamRef(ReadableStreamRef &Ref, uint32_t Length); - - template <typename T> Error readEnum(T &Dest) { - typename std::underlying_type<T>::type N; - if (auto EC = readInteger(N)) - return EC; - Dest = static_cast<T>(N); - return Error::success(); - } - - template <typename T> Error readObject(const T *&Dest) { - ArrayRef<uint8_t> Buffer; - if (auto EC = readBytes(Buffer, sizeof(T))) - return EC; - Dest = reinterpret_cast<const T *>(Buffer.data()); - return Error::success(); - } - - template <typename T> - Error readArray(ArrayRef<T> &Array, uint32_t NumElements) { - ArrayRef<uint8_t> Bytes; - if (NumElements == 0) { - Array = ArrayRef<T>(); - return Error::success(); - } - - if (NumElements > UINT32_MAX / sizeof(T)) - return make_error<MSFError>(msf_error_code::insufficient_buffer); - - if (auto EC = readBytes(Bytes, NumElements * sizeof(T))) - return EC; - Array = ArrayRef<T>(reinterpret_cast<const T *>(Bytes.data()), NumElements); - return Error::success(); - } - - template <typename T, typename U> - Error readArray(VarStreamArray<T, U> &Array, uint32_t Size) { - ReadableStreamRef S; - if (auto EC = readStreamRef(S, Size)) - return EC; - Array = VarStreamArray<T, U>(S, Array.getExtractor()); - return Error::success(); - } - - template <typename T> - Error readArray(FixedStreamArray<T> &Array, uint32_t NumItems) { - if (NumItems == 0) { - Array = FixedStreamArray<T>(); - return Error::success(); - } - uint32_t Length = NumItems * sizeof(T); - if (Length / sizeof(T) != NumItems) - return make_error<MSFError>(msf_error_code::invalid_format); - if (Offset + Length > Stream.getLength()) - return make_error<MSFError>(msf_error_code::insufficient_buffer); - ReadableStreamRef View = Stream.slice(Offset, Length); - Array = FixedStreamArray<T>(View); - Offset += Length; - return Error::success(); - } - - bool empty() const { return bytesRemaining() == 0; } - 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(); } - - Error skip(uint32_t Amount); - - uint8_t peek() const; - -private: - ReadableStreamRef Stream; - uint32_t Offset; -}; -} // namespace msf -} // namespace llvm - -#endif // LLVM_DEBUGINFO_MSF_STREAMREADER_H |