A memory block, either on the stack or in the heap. More...

#include "/home/buildbot/as-worker-4/publish-doxygen-docs/llvm-project/clang/lib/AST/ByteCode/InterpBlock.h"

Public Member Functions
	Block (unsigned EvalID, const std::optional< unsigned > &DeclID, const Descriptor *Desc, bool IsStatic=false, bool IsExtern=false)
	Creates a new block.

	Block (unsigned EvalID, const Descriptor *Desc, bool IsStatic=false, bool IsExtern=false)

const Descriptor *	getDescriptor () const
	Returns the block's descriptor.

bool	hasPointers () const
	Checks if the block has any live pointers.

bool	isExtern () const
	Checks if the block is extern.

bool	isStatic () const
	Checks if the block has static storage duration.

bool	isTemporary () const
	Checks if the block is temporary.

bool	isDynamic () const

unsigned	getSize () const
	Returns the size of the block.

std::optional< unsigned >	getDeclID () const
	Returns the declaration ID.

bool	isInitialized () const
	Returns whether the data of this block has been initialized via invoking the Ctor func.

unsigned	getEvalID () const
	The Evaluation ID this block was created in.

std::byte *	data ()
	Returns a pointer to the stored data.

const std::byte *	data () const

std::byte *	rawData ()
	Returns a pointer to the raw data, including metadata.

const std::byte *	rawData () const

void	invokeCtor ()
	Invokes the constructor.

void	invokeDtor ()
	Invokes the Destructor.

void	dump () const

void	dump (llvm::raw_ostream &OS) const

Friends
class	Pointer

class	DeadBlock

class	InterpState

class	DynamicAllocator

Detailed Description

A memory block, either on the stack or in the heap.

The storage described by the block is immediately followed by optional metadata, which is followed by the actual data.

Block* rawData() data() │ │ │ │ │ │ ▼ ▼ ▼ ┌───────────────┬─────────────────────────┬─────────────────┐ │ Block │ Metadata │ Data │ │ sizeof(Block) │ Desc->getMetadataSize() │ Desc->getSize() │ └───────────────┴─────────────────────────┴─────────────────┘

Desc->getAllocSize() describes the size after the Block, i.e. the data size and the metadata size.

Definition at line 49 of file InterpBlock.h.

Constructor & Destructor Documentation

◆ Block() [1/2]

clang::interp::Block::Block	(	unsigned	EvalID,
		const std::optional< unsigned > &	DeclID,
		const Descriptor *	Desc,
		bool	IsStatic = `false`,
		bool	IsExtern = `false`
	)

inline

Creates a new block.

Definition at line 52 of file InterpBlock.h.

◆ Block() [2/2]

clang::interp::Block::Block	(	unsigned	EvalID,
		const Descriptor *	Desc,
		bool	IsStatic = `false`,
		bool	IsExtern = `false`
	)

inline

Definition at line 59 of file InterpBlock.h.

Member Function Documentation

◆ data() [1/2]

std::byte * clang::interp::Block::data ( )

inline

Returns a pointer to the stored data.

You are allowed to read Desc->getSize() bytes from this address.

Definition at line 89 of file InterpBlock.h.

References clang::interp::Descriptor::getMetadataSize(), and rawData().

Referenced by clang::interp::DeadBlock::data(), clang::interp::InterpState::deallocate(), clang::interp::Pointer::elem(), invokeCtor(), and invokeDtor().

◆ data() [2/2]

const std::byte * clang::interp::Block::data ( ) const

inline

Definition at line 94 of file InterpBlock.h.

References clang::interp::Descriptor::getMetadataSize(), and rawData().

◆ dump() [1/2]

void clang::interp::Block::dump ( ) const

inline

Definition at line 128 of file InterpBlock.h.

References dump().

Referenced by dump().

◆ dump() [2/2]

LLVM_DUMP_METHOD void Block::dump ( llvm::raw_ostream & OS ) const

Definition at line 333 of file Disasm.cpp.

References clang::interp::Descriptor::dump(), and P.

◆ getDeclID()

std::optional< unsigned > clang::interp::Block::getDeclID ( ) const

inline

Returns the declaration ID.

Definition at line 80 of file InterpBlock.h.

Referenced by clang::interp::Pointer::getDeclID().

◆ getDescriptor()

const Descriptor * clang::interp::Block::getDescriptor ( ) const

inline

Returns the block's descriptor.

Definition at line 67 of file InterpBlock.h.

Referenced by clang::interp::InterpState::deallocate(), clang::interp::Pointer::expand(), clang::interp::Free(), clang::interp::RunDestructors(), and clang::interp::MemberPointer::toPointer().

◆ getEvalID()

unsigned clang::interp::Block::getEvalID ( ) const

inline

The Evaluation ID this block was created in.

Definition at line 85 of file InterpBlock.h.

Referenced by clang::interp::CheckMutable().

◆ getSize()

unsigned clang::interp::Block::getSize ( ) const

inline

Returns the size of the block.

Definition at line 78 of file InterpBlock.h.

References clang::interp::Descriptor::getAllocSize().

Referenced by clang::interp::InterpState::deallocate(), clang::interp::GetPtrField(), clang::interp::GetPtrFieldPop(), clang::interp::Pointer::print(), and clang::interp::MemberPointer::toPointer().

◆ hasPointers()

bool clang::interp::Block::hasPointers ( ) const

inline

Checks if the block has any live pointers.

Definition at line 69 of file InterpBlock.h.

Referenced by clang::interp::DynamicAllocator::cleanup(), and clang::interp::InterpState::deallocate().

◆ invokeCtor()

void clang::interp::Block::invokeCtor ( )

inline

Invokes the constructor.

Definition at line 110 of file InterpBlock.h.

References clang::interp::Descriptor::CtorFn, data(), clang::interp::Descriptor::getAllocSize(), clang::interp::Descriptor::IsConst, clang::interp::Descriptor::IsMutable, and rawData().

Referenced by clang::interp::DynamicAllocator::allocate(), clang::interp::EvalEmitter::createLocal(), clang::interp::InterpFrame::getParamPointer(), and clang::interp::InterpFrame::initScope().

◆ invokeDtor()

void clang::interp::Block::invokeDtor ( )

inline

Invokes the Destructor.

Definition at line 121 of file InterpBlock.h.

References data(), and clang::interp::Descriptor::DtorFn.

Referenced by clang::interp::DynamicAllocator::cleanup(), clang::interp::InterpState::deallocate(), clang::interp::DynamicAllocator::deallocate(), clang::interp::Compiler< Emitter >::visitDecl(), clang::interp::Compiler< Emitter >::visitDeclAndReturn(), and clang::interp::EvalEmitter::~EvalEmitter().

◆ isDynamic()

bool clang::interp::Block::isDynamic ( ) const

inline

Definition at line 76 of file InterpBlock.h.

◆ isExtern()

bool clang::interp::Block::isExtern ( ) const

inline

Checks if the block is extern.

Definition at line 71 of file InterpBlock.h.

Referenced by clang::interp::Pointer::isExtern().

◆ isInitialized()

bool clang::interp::Block::isInitialized ( ) const

inline

Returns whether the data of this block has been initialized via invoking the Ctor func.

Definition at line 83 of file InterpBlock.h.

Referenced by clang::interp::EvalEmitter::~EvalEmitter(), and clang::interp::Program::~Program().

◆ isStatic()

bool clang::interp::Block::isStatic ( ) const

inline

Checks if the block has static storage duration.

Definition at line 73 of file InterpBlock.h.

Referenced by clang::interp::Pointer::isStatic().

◆ isTemporary()

bool clang::interp::Block::isTemporary ( ) const

inline

Checks if the block is temporary.

Definition at line 75 of file InterpBlock.h.

References clang::interp::Descriptor::IsTemporary.

Referenced by clang::interp::Pointer::isTemporary().

◆ rawData() [1/2]

std::byte * clang::interp::Block::rawData ( )

inline

Returns a pointer to the raw data, including metadata.

You are allowed to read Desc->getAllocSize() bytes from this address.

Definition at line 102 of file InterpBlock.h.

Referenced by data(), clang::interp::InterpState::deallocate(), clang::interp::Pointer::deref(), clang::interp::Pointer::initialize(), invokeCtor(), clang::interp::Pointer::isInitialized(), clang::interp::DeadBlock::rawData(), clang::interp::Compiler< Emitter >::visitDecl(), and clang::interp::Compiler< Emitter >::visitDeclAndReturn().

◆ rawData() [2/2]

const std::byte * clang::interp::Block::rawData ( ) const

inline

Definition at line 105 of file InterpBlock.h.

Friends And Related Function Documentation

◆ DeadBlock

friend class DeadBlock

friend

Definition at line 133 of file InterpBlock.h.

◆ DynamicAllocator

friend class DynamicAllocator

friend

Definition at line 135 of file InterpBlock.h.

◆ InterpState

friend class InterpState

friend

Definition at line 134 of file InterpBlock.h.

◆ Pointer

friend class Pointer

friend

Definition at line 132 of file InterpBlock.h.

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

lib/AST/ByteCode/InterpBlock.h
lib/AST/ByteCode/Disasm.cpp
lib/AST/ByteCode/InterpBlock.cpp

Public Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

◆ Block() [1/2]

◆ Block() [2/2]

Member Function Documentation

◆ data() [1/2]

◆ data() [2/2]

◆ dump() [1/2]

◆ dump() [2/2]

◆ getDeclID()

◆ getDescriptor()

◆ getEvalID()

◆ getSize()

◆ hasPointers()

◆ invokeCtor()

◆ invokeDtor()

◆ isDynamic()

◆ isExtern()

◆ isInitialized()

◆ isStatic()

◆ isTemporary()

◆ rawData() [1/2]

◆ rawData() [2/2]

Friends And Related Function Documentation

◆ DeadBlock

◆ DynamicAllocator

◆ InterpState

◆ Pointer