Provides write only access to a subclass of WritableBinaryStream. More...

#include "llvm/Support/BinaryStreamWriter.h"

Collaboration diagram for llvm::BinaryStreamWriter:

[legend]

Public Member Functions
	BinaryStreamWriter ()=default

	BinaryStreamWriter (WritableBinaryStreamRef Ref)

	BinaryStreamWriter (WritableBinaryStream &Stream)

	BinaryStreamWriter (MutableArrayRef< uint8_t > Data, llvm::support::endianness Endian)

	BinaryStreamWriter (const BinaryStreamWriter &Other)

BinaryStreamWriter &	operator= (const BinaryStreamWriter &Other)

virtual	~BinaryStreamWriter ()

Error	writeBytes (ArrayRef< uint8_t > Buffer)
	Write the bytes specified in `Buffer` to the underlying stream. More...

template<typename T >
Error	writeInteger (T Value)
	Write the integer `Value` to the underlying stream in the specified endianness. More...

template<typename T >
Error	writeEnum (T Num)
	Similar to writeInteger. More...

Error	writeULEB128 (uint64_t Value)
	Write the unsigned integer Value to the underlying stream using ULEB128 encoding. More...

Error	writeSLEB128 (int64_t Value)
	Write the unsigned integer Value to the underlying stream using ULEB128 encoding. More...

Error	writeCString (StringRef Str)
	Write the string `Str` to the underlying stream followed by a null terminator. More...

Error	writeFixedString (StringRef Str)
	Write the string `Str` to the underlying stream without a null terminator. More...

Error	writeStreamRef (BinaryStreamRef Ref)
	Efficiently reads all data from `Ref`, and writes it to this stream. More...

Error	writeStreamRef (BinaryStreamRef Ref, uint32_t Size)
	Efficiently reads `Size` bytes from `Ref`, and writes it to this stream. More...

template<typename T >
Error	writeObject (const T &Obj)
	Writes the object `Obj` to the underlying stream, as if by using memcpy. More...

template<typename T >
Error	writeArray (ArrayRef< T > Array)
	Writes an array of objects of type T to the underlying stream, as if by using memcpy. More...

template<typename T , typename U >
Error	writeArray (VarStreamArray< T, U > Array)
	Writes all data from the array `Array` to the underlying stream. More...

template<typename T >
Error	writeArray (FixedStreamArray< T > Array)
	Writes all elements from the array `Array` to the underlying stream. More...

std::pair< BinaryStreamWriter, BinaryStreamWriter >	split (uint32_t Off) const
	Splits the Writer into two Writers at a given offset. More...

void	setOffset (uint32_t Off)

uint32_t	getOffset () const

uint32_t	getLength () const

uint32_t	bytesRemaining () const

Error	padToAlignment (uint32_t Align)

Protected Attributes
WritableBinaryStreamRef	Stream

uint32_t	Offset = 0

Detailed Description

Provides write only access to a subclass of WritableBinaryStream.

Provides bounds checking and helpers for writing certain common data types such as null-terminated strings, integers in various flavors of endianness, etc. Can be subclassed to provide reading and writing of custom datatypes, although no methods are overridable.

Definition at line 31 of file BinaryStreamWriter.h.

Constructor & Destructor Documentation

◆ BinaryStreamWriter() [1/5]

llvm::BinaryStreamWriter::BinaryStreamWriter ( )

default

◆ BinaryStreamWriter() [2/5]

BinaryStreamWriter::BinaryStreamWriter ( WritableBinaryStreamRef Ref )

explicit

Definition at line 18 of file BinaryStreamWriter.cpp.

◆ BinaryStreamWriter() [3/5]

BinaryStreamWriter::BinaryStreamWriter ( WritableBinaryStream & Stream )

explicit

Definition at line 21 of file BinaryStreamWriter.cpp.

◆ BinaryStreamWriter() [4/5]

BinaryStreamWriter::BinaryStreamWriter	(	MutableArrayRef< uint8_t >	Data,
		llvm::support::endianness	Endian
	)

explicit

Definition at line 24 of file BinaryStreamWriter.cpp.

◆ BinaryStreamWriter() [5/5]

llvm::BinaryStreamWriter::BinaryStreamWriter ( const BinaryStreamWriter & Other )

inline

Definition at line 39 of file BinaryStreamWriter.h.

◆ ~BinaryStreamWriter()

virtual llvm::BinaryStreamWriter::~BinaryStreamWriter ( )

inlinevirtual

Definition at line 48 of file BinaryStreamWriter.h.

References writeBytes().

Member Function Documentation

◆ bytesRemaining()

uint32_t llvm::BinaryStreamWriter::bytesRemaining ( ) const

inline

Definition at line 186 of file BinaryStreamWriter.h.

References getLength(), getOffset(), and padToAlignment().

Referenced by llvm::pdb::DbiModuleDescriptorBuilder::commit(), llvm::pdb::DbiStreamBuilder::commit(), commitFpm(), llvm::msf::WritableMappedBlockStream::createFpmStream(), llvm::pdb::PDBFileBuilder::getNamedStreamIndex(), llvm::pdb::DbiStreamBuilder::getSourceFileNameIndex(), and llvm::codeview::ContinuationRecordBuilder::writeMemberType().

◆ getLength()

uint32_t llvm::BinaryStreamWriter::getLength ( ) const

inline

Definition at line 185 of file BinaryStreamWriter.h.

References llvm::BinaryStream::getLength().

Referenced by llvm::codeview::ContinuationRecordBuilder::begin(), bytesRemaining(), padToAlignment(), split(), and llvm::codeview::ContinuationRecordBuilder::writeMemberType().

◆ getOffset()

uint32_t llvm::BinaryStreamWriter::getOffset ( ) const

inline

Definition at line 184 of file BinaryStreamWriter.h.

References Offset.

Referenced by addPadding(), llvm::codeview::ContinuationRecordBuilder::begin(), bytesRemaining(), llvm::codeview::DebugSubsectionRecordBuilder::commit(), llvm::codeview::DebugStringTableSubsection::commit(), llvm::pdb::DbiModuleDescriptorBuilder::commit(), llvm::pdb::DbiStreamBuilder::getSourceFileNameIndex(), llvm::codeview::SimpleTypeSerializer::serialize(), llvm::codeview::SymbolSerializer::visitSymbolEnd(), and llvm::codeview::ContinuationRecordBuilder::writeMemberType().

◆ operator=()

BinaryStreamWriter& llvm::BinaryStreamWriter::operator= ( const BinaryStreamWriter & Other )

inline

Definition at line 42 of file BinaryStreamWriter.h.

References Offset, and Stream.

◆ padToAlignment()

Error BinaryStreamWriter::padToAlignment ( uint32_t Align )

Definition at line 95 of file BinaryStreamWriter.cpp.

References llvm::alignTo(), getLength(), Offset, llvm::stream_too_short, llvm::Error::success(), and writeInteger().

Referenced by bytesRemaining(), llvm::codeview::DebugSubsectionRecordBuilder::commit(), llvm::pdb::DbiModuleDescriptorBuilder::commit(), llvm::codeview::DebugChecksumsSubsection::commit(), llvm::pdb::DbiStreamBuilder::getSourceFileNameIndex(), and llvm::codeview::CodeViewRecordIO::padToAlignment().

◆ setOffset()

void llvm::BinaryStreamWriter::setOffset ( uint32_t Off )

inline

Definition at line 183 of file BinaryStreamWriter.h.

References Offset.

Referenced by llvm::codeview::ContinuationRecordBuilder::begin(), llvm::msf::MSFBuilder::commit(), llvm::codeview::SymbolSerializer::visitSymbolBegin(), llvm::codeview::SymbolSerializer::visitSymbolEnd(), and llvm::codeview::ContinuationRecordBuilder::writeMemberType().

◆ split()

std::pair< BinaryStreamWriter, BinaryStreamWriter > BinaryStreamWriter::split ( uint32_t Off ) const

Splits the Writer into two Writers at a given offset.

Definition at line 83 of file BinaryStreamWriter.cpp.

References assert(), llvm::BinaryStreamRefBase< RefType, StreamType >::drop_front(), getLength(), llvm::BinaryStreamRefBase< RefType, StreamType >::keep_front(), Offset, and Stream.

Referenced by llvm::pdb::PDBStringTableBuilder::commit(), and writeArray().

◆ writeArray() [1/3]

template<typename T >

Error llvm::BinaryStreamWriter::writeArray ( ArrayRef< T > Array )

inline

Writes an array of objects of type T to the underlying stream, as if by using memcpy.

It is up to the caller to ensure that type of Obj can be safely copied in this fashion, as no checks are made to ensure that this is safe.

Returns: a success error code if the data was successfully written, otherwise returns an appropriate error code.

Definition at line 151 of file BinaryStreamWriter.h.

References llvm::ArrayRef< T >::data(), llvm::ArrayRef< T >::empty(), llvm::invalid_array_size, llvm::ArrayRef< T >::size(), llvm::Error::success(), T, and writeBytes().

Referenced by llvm::pdb::DbiStreamBuilder::addDbgStream(), llvm::codeview::DebugFrameDataSubsection::commit(), llvm::codeview::DebugSymbolRVASubsection::commit(), llvm::pdb::GSIHashStreamBuilder::commit(), llvm::pdb::DbiStreamBuilder::commit(), llvm::codeview::DebugChecksumsSubsection::commit(), llvm::codeview::DebugInlineeLinesSubsection::commit(), llvm::msf::MSFBuilder::commit(), llvm::codeview::DebugLinesSubsection::commit(), llvm::pdb::DbiStreamBuilder::finalizeMsfLayout(), and writeRecords().

◆ writeArray() [2/3]

template<typename T , typename U >

Error llvm::BinaryStreamWriter::writeArray ( VarStreamArray< T, U > Array )

inline

Writes all data from the array Array to the underlying stream.

Returns: a success error code if the data was successfully written, otherwise returns an appropriate error code.

Definition at line 168 of file BinaryStreamWriter.h.

References llvm::VarStreamArray< ValueType, Extractor >::getUnderlyingStream(), and writeStreamRef().

◆ writeArray() [3/3]

template<typename T >

Error llvm::BinaryStreamWriter::writeArray ( FixedStreamArray< T > Array )

inline

Writes all elements from the array Array to the underlying stream.

Returns: a success error code if the data was successfully written, otherwise returns an appropriate error code.

Definition at line 176 of file BinaryStreamWriter.h.

References llvm::FixedStreamArray< T >::getUnderlyingStream(), split(), and writeStreamRef().

◆ writeBytes()

Error BinaryStreamWriter::writeBytes ( ArrayRef< uint8_t > Buffer )

Write the bytes specified in Buffer to the underlying stream.

On success, updates the offset so that subsequent writes will occur at the next unwritten position.

Returns: a success error code if the data was successfully written, otherwise returns an appropriate error code.

Definition at line 28 of file BinaryStreamWriter.cpp.

References Offset, llvm::ArrayRef< T >::size(), Stream, llvm::Error::success(), and llvm::WritableBinaryStreamRef::writeBytes().

Referenced by llvm::codeview::DebugSymbolsSubsection::commit(), llvm::pdb::PDBFileBuilder::commit(), llvm::pdb::TpiStreamBuilder::commit(), llvm::pdb::DbiModuleDescriptorBuilder::commit(), llvm::msf::WritableMappedBlockStream::createFpmStream(), llvm::pdb::PDBFileBuilder::getNamedStreamIndex(), llvm::codeview::CodeViewRecordIO::mapByteVectorTail(), llvm::codeview::CodeViewRecordIO::mapGuid(), writeArray(), writeFixedString(), writeInteger(), writeObject(), writeSLEB128(), writeStreamRef(), writeULEB128(), and ~BinaryStreamWriter().

◆ writeCString()

Error BinaryStreamWriter::writeCString ( StringRef Str )

Write the string Str to the underlying stream followed by a null terminator.

On success, updates the offset so that subsequent writes occur at the next unwritten position. Str need not be null terminated on input.

Returns: a success error code if the data was successfully written, otherwise returns an appropriate error code.

Definition at line 47 of file BinaryStreamWriter.cpp.

References llvm::Error::success(), writeFixedString(), and writeObject().

Referenced by llvm::pdb::DbiModuleDescriptorBuilder::commit(), llvm::pdb::DbiStreamBuilder::getSourceFileNameIndex(), llvm::codeview::CodeViewRecordIO::mapStringZ(), and writeEnum().

◆ writeEnum()

template<typename T >

Error llvm::BinaryStreamWriter::writeEnum ( T Num )

inline

Similar to writeInteger.

Definition at line 74 of file BinaryStreamWriter.h.

References Size, writeCString(), writeFixedString(), writeSLEB128(), writeStreamRef(), and writeULEB128().

Referenced by llvm::pdb::DbiStreamBuilder::commit(), llvm::codeview::DebugInlineeLinesSubsection::commit(), and llvm::codeview::ContinuationRecordBuilder::writeMemberType().

◆ writeFixedString()

Error BinaryStreamWriter::writeFixedString ( StringRef Str )

Write the string Str to the underlying stream without a null terminator.

On success, updates the offset so that subsequent writes occur at the next unwritten position.

Returns: a success error code if the data was successfully written, otherwise returns an appropriate error code.

Definition at line 56 of file BinaryStreamWriter.cpp.

References llvm::arrayRefFromStringRef(), and writeBytes().

Referenced by llvm::pdb::NamedStreamMap::commit(), writeCString(), and writeEnum().

◆ writeInteger()

template<typename T >

Error llvm::BinaryStreamWriter::writeInteger ( T Value )

inline

Write the integer Value to the underlying stream in the specified endianness.

On success, updates the offset so that subsequent writes occur at the next unwritten position.

Returns: a success error code if the data was successfully written, otherwise returns an appropriate error code.

Definition at line 64 of file BinaryStreamWriter.h.

References llvm::BinaryStream::getEndian(), T, and writeBytes().

Referenced by addPadding(), llvm::pdb::NamedStreamMap::commit(), llvm::codeview::DebugFrameDataSubsection::commit(), llvm::codeview::DebugCrossModuleExportsSubsection::commit(), llvm::pdb::DbiModuleDescriptorBuilder::commit(), llvm::pdb::DbiStreamBuilder::commit(), llvm::codeview::DebugInlineeLinesSubsection::commit(), llvm::msf::MSFBuilder::commit(), llvm::pdb::HashTable< llvm::support::detail::packed_endian_specific_integral >::commit(), llvm::pdb::DbiStreamBuilder::getSourceFileNameIndex(), llvm::codeview::CodeViewRecordIO::mapInteger(), llvm::codeview::CodeViewRecordIO::mapStringZVectorZ(), padToAlignment(), llvm::codeview::SymbolSerializer::visitSymbolEnd(), and llvm::pdb::writeSparseBitVector().

◆ writeObject()

template<typename T >

Error llvm::BinaryStreamWriter::writeObject ( const T & Obj )

inline

Writes the object Obj to the underlying stream, as if by using memcpy.

It is up to the caller to ensure that type of Obj can be safely copied in this fashion, as no checks are made to ensure that this is safe.

Returns: a success error code if the data was successfully written, otherwise returns an appropriate error code.

Definition at line 135 of file BinaryStreamWriter.h.

References writeBytes().

Referenced by llvm::codeview::ContinuationRecordBuilder::begin(), llvm::pdb::GSIHashStreamBuilder::commit(), llvm::pdb::TpiStreamBuilder::commit(), llvm::codeview::DebugSubsectionRecordBuilder::commit(), llvm::pdb::DbiModuleDescriptorBuilder::commit(), llvm::pdb::DbiStreamBuilder::commit(), llvm::codeview::DebugChecksumsSubsection::commit(), llvm::codeview::DebugInlineeLinesSubsection::commit(), llvm::msf::MSFBuilder::commit(), llvm::codeview::DebugLinesSubsection::commit(), llvm::pdb::HashTable< llvm::support::detail::packed_endian_specific_integral >::commit(), commitFpm(), llvm::pdb::PDBFileBuilder::getNamedStreamIndex(), llvm::codeview::SimpleTypeSerializer::serialize(), writeCString(), and writeRecords().

◆ writeSLEB128()

Error BinaryStreamWriter::writeSLEB128 ( int64_t Value )

Write the unsigned integer Value to the underlying stream using ULEB128 encoding.

Returns: a success error code if the data was successfully written, otherwise returns an appropriate error code.

Definition at line 41 of file BinaryStreamWriter.cpp.

References llvm::encodeSLEB128(), Size, and writeBytes().

Referenced by writeEnum().

◆ writeStreamRef() [1/2]

Error BinaryStreamWriter::writeStreamRef ( BinaryStreamRef Ref )

Efficiently reads all data from Ref, and writes it to this stream.

This operation will not invoke any copies of the source data, regardless of the source stream's implementation.

Returns: a success error code if the data was successfully written, otherwise returns an appropriate error code.

Definition at line 61 of file BinaryStreamWriter.cpp.

References llvm::BinaryStreamRefBase< RefType, StreamType >::getLength().

Referenced by llvm::pdb::TpiStreamBuilder::commit(), llvm::codeview::DebugSubsectionRecordBuilder::commit(), llvm::pdb::DbiStreamBuilder::commit(), writeArray(), writeEnum(), and writeRecords().

◆ writeStreamRef() [2/2]

Error BinaryStreamWriter::writeStreamRef	(	BinaryStreamRef	Ref,
		uint32_t	Size
	)

Efficiently reads Size bytes from Ref, and writes it to this stream.

This operation will not invoke any copies of the source data, regardless of the source stream's implementation.

Returns: a success error code if the data was successfully written, otherwise returns an appropriate error code.

Definition at line 65 of file BinaryStreamWriter.cpp.

References llvm::BinaryStreamRefBase< RefType, StreamType >::slice(), llvm::Error::success(), and writeBytes().

◆ writeULEB128()

Error BinaryStreamWriter::writeULEB128 ( uint64_t Value )

Write the unsigned integer Value to the underlying stream using ULEB128 encoding.

Returns: a success error code if the data was successfully written, otherwise returns an appropriate error code.

Definition at line 35 of file BinaryStreamWriter.cpp.

References llvm::encodeULEB128(), Size, and writeBytes().

Referenced by writeEnum().

Member Data Documentation

◆ Offset

uint32_t llvm::BinaryStreamWriter::Offset = 0

protected

Definition at line 191 of file BinaryStreamWriter.h.

Referenced by getOffset(), operator=(), padToAlignment(), setOffset(), split(), and writeBytes().

◆ Stream

WritableBinaryStreamRef llvm::BinaryStreamWriter::Stream

protected

Definition at line 190 of file BinaryStreamWriter.h.

Referenced by operator=(), split(), and writeBytes().

The documentation for this class was generated from the following files:

include/llvm/Support/BinaryStreamWriter.h
lib/Support/BinaryStreamWriter.cpp

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ BinaryStreamWriter() [1/5]

◆ BinaryStreamWriter() [2/5]

◆ BinaryStreamWriter() [3/5]

◆ BinaryStreamWriter() [4/5]

◆ BinaryStreamWriter() [5/5]

◆ ~BinaryStreamWriter()

Member Function Documentation

◆ bytesRemaining()

◆ getLength()

◆ getOffset()

◆ operator=()

◆ padToAlignment()

◆ setOffset()

◆ split()

◆ writeArray() [1/3]

◆ writeArray() [2/3]

◆ writeArray() [3/3]

◆ writeBytes()

◆ writeCString()

◆ writeEnum()

◆ writeFixedString()

◆ writeInteger()

◆ writeObject()

◆ writeSLEB128()

◆ writeStreamRef() [1/2]

◆ writeStreamRef() [2/2]

◆ writeULEB128()

Member Data Documentation

◆ Offset

◆ Stream