32 Offset += Buffer.
size();
52 }
while (NextByte[0] & 0x80);
67 }
while (NextByte[0] & 0x80);
84 FoundOffset = Pos + ThisOffset;
88 assert(FoundOffset >= OriginalOffset);
91 size_t Length = FoundOffset - OriginalOffset;
156 return skip(NewOffset - Offset);
161 auto EC = Stream.
readBytes(Offset, 1, Buffer);
162 assert(!EC &&
"Cannot peek an empty buffer!");
167std::pair<BinaryStreamReader, BinaryStreamReader>
177 return std::make_pair(W1, W2);
#define LLVM_LIKELY(EXPR)
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...
size_t size() const
size - Get the array size.
Provides read only access to a subclass of BinaryStream.
Error readStreamRef(BinaryStreamRef &Ref)
Read the entire remainder of the underlying stream into Ref.
Error readObject(const T *&Dest)
Get a pointer to an object of type T from the underlying stream, as if by memcpy, and store the resul...
Error readCString(StringRef &Dest)
Read a null terminated string from Dest.
Error readBytes(ArrayRef< uint8_t > &Buffer, uint32_t Size)
Read Size bytes from the underlying stream at the current offset and and set Buffer to the resulting ...
uint8_t peek() const
Examine the next byte of the underlying stream without advancing the stream's offset.
Error readWideString(ArrayRef< UTF16 > &Dest)
Similar to readCString, however read a null-terminated UTF16 string instead.
uint64_t getLength() const
Error readSubstream(BinarySubstreamRef &Ref, uint32_t Length)
Read Length bytes from the underlying stream into Ref.
BinaryStreamReader()=default
uint64_t bytesRemaining() const
uint64_t getOffset() const
Error readSLEB128(int64_t &Dest)
Read a signed LEB128 encoded value.
Error readLongestContiguousChunk(ArrayRef< uint8_t > &Buffer)
Read as much as possible from the underlying string at the current offset without invoking a copy,...
Error padToAlignment(uint32_t Align)
Error readFixedString(StringRef &Dest, uint32_t Length)
Read a Length byte string into Dest.
std::pair< BinaryStreamReader, BinaryStreamReader > split(uint64_t Offset) const
void setOffset(uint64_t Off)
Error readArray(ArrayRef< T > &Array, uint32_t NumElements)
Get a reference to a NumElements element array of objects of type T from the underlying stream as if ...
Error readULEB128(uint64_t &Dest)
Read an unsigned LEB128 encoded value.
Error skip(uint64_t Amount)
Advance the stream's offset by Amount bytes.
RefType drop_front(uint64_t N) const
Return a new BinaryStreamRef with the first N elements removed.
RefType slice(uint64_t Offset, uint64_t Len) const
Return a new BinaryStreamRef with the first Offset elements removed, and retaining exactly Len elemen...
BinaryStreamRef is to BinaryStream what ArrayRef is to an Array.
Error readLongestContiguousChunk(uint64_t Offset, ArrayRef< uint8_t > &Buffer) const
Given an Offset into this BinaryStreamRef, return a reference to the largest buffer the stream could ...
Error readBytes(uint64_t Offset, uint64_t Size, ArrayRef< uint8_t > &Buffer) const
Given an Offset into this StreamRef and a Size, return a reference to a buffer owned by the stream.
An interface for accessing data in a stream-like format, but which discourages copying.
Lightweight error class with error context and mandatory checking.
static ErrorSuccess success()
Create a success value.
void push_back(const T &Elt)
This is a 'vector' (really, a variable-sized array), optimized for the case when the array is small.
StringRef - Represent a constant reference to a string, i.e.
size_t find_first_of(char C, size_t From=0) const
Find the first character in the string that is C, or npos if not found.
static constexpr size_t npos
@ C
The default llvm calling convention, compatible with C.
This is an optimization pass for GlobalISel generic memory operations.
uint64_t decodeULEB128(const uint8_t *p, unsigned *n=nullptr, const uint8_t *end=nullptr, const char **error=nullptr)
Utility function to decode a ULEB128 value.
int64_t decodeSLEB128(const uint8_t *p, unsigned *n=nullptr, const uint8_t *end=nullptr, const char **error=nullptr)
Utility function to decode a SLEB128 value.
@ Ref
The access may reference the value stored in memory.
@ First
Helpers to iterate all locations in the MemoryEffectsBase class.
uint64_t alignTo(uint64_t Size, Align A)
Returns a multiple of A needed to store Size bytes.
void consumeError(Error Err)
Consume a Error without doing anything.
This struct is a compact representation of a valid (non-zero power of two) alignment.