Base class for materialization of Variables and ValueObjects. More...

Inheritance diagram for EntityVariableBase:

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Public Member Functions
virtual	~EntityVariableBase ()=default

	EntityVariableBase ()

void	Materialize (lldb::StackFrameSP &frame_sp, IRMemoryMap &map, lldb::addr_t process_address, Status &err) override

void	Dematerialize (lldb::StackFrameSP &frame_sp, IRMemoryMap &map, lldb::addr_t process_address, lldb::addr_t frame_top, lldb::addr_t frame_bottom, Status &err) override

void	DumpToLog (IRMemoryMap &map, lldb::addr_t process_address, Log *log) override

void	Wipe (IRMemoryMap &map, lldb::addr_t process_address) override

Public Member Functions inherited from lldb_private::Materializer::Entity
	Entity ()=default

virtual	~Entity ()=default

virtual void	Materialize (lldb::StackFrameSP &frame_sp, IRMemoryMap &map, lldb::addr_t process_address, Status &err)=0

virtual void	Dematerialize (lldb::StackFrameSP &frame_sp, IRMemoryMap &map, lldb::addr_t process_address, lldb::addr_t frame_top, lldb::addr_t frame_bottom, Status &err)=0

virtual void	DumpToLog (IRMemoryMap &map, lldb::addr_t process_address, Log *log)=0

virtual void	Wipe (IRMemoryMap &map, lldb::addr_t process_address)=0

uint32_t	GetAlignment ()

uint32_t	GetSize ()

uint32_t	GetOffset ()

void	SetOffset (uint32_t offset)

Protected Attributes
bool	m_is_reference = false

lldb::addr_t	m_temporary_allocation = LLDB_INVALID_ADDRESS

size_t	m_temporary_allocation_size = 0

lldb::DataBufferSP	m_original_data

Protected Attributes inherited from lldb_private::Materializer::Entity
uint32_t	m_alignment = 1

uint32_t	m_size = 0

uint32_t	m_offset = 0

Private Member Functions
virtual ConstString	GetName () const =0

virtual lldb::ValueObjectSP	SetupValueObject (ExecutionContextScope *scope)=0
	Creates and returns ValueObject tied to this variable and prepares Entity for materialization.

virtual std::optional< uint64_t >	GetByteSize (ExecutionContextScope *scope) const =0
	Returns size in bytes of the type associated with this variable.

virtual bool	LocationExpressionIsValid () const =0
	Returns 'true' if the location expression associated with this variable is valid.

virtual std::optional< size_t >	GetTypeBitAlign (ExecutionContextScope *scope) const =0
	Returns alignment of the type associated with this variable in bits.

Detailed Description

Base class for materialization of Variables and ValueObjects.

Subclasses specify how to obtain the Value which is to be materialized.

Definition at line 429 of file Materializer.cpp.

Constructor & Destructor Documentation

◆ ~EntityVariableBase()

virtual EntityVariableBase::~EntityVariableBase ( )

virtualdefault

◆ EntityVariableBase()

EntityVariableBase::EntityVariableBase ( )

inline

Definition at line 433 of file Materializer.cpp.

References g_default_var_alignment, and g_default_var_byte_size.

Member Function Documentation

◆ Dematerialize()

void EntityVariableBase::Dematerialize	(	lldb::StackFrameSP &	frame_sp,
		IRMemoryMap &	map,
		lldb::addr_t	process_address,
		lldb::addr_t	frame_top,
		lldb::addr_t	frame_bottom,
		Status &	err
	)

inlineoverridevirtual

Implements lldb_private::Materializer::Entity.

Definition at line 603 of file Materializer.cpp.

References lldb_private::Status::AsCString(), lldb_private::IRMemoryMap::Free(), lldb_private::Status::FromErrorStringWithFormat(), lldb_private::IRMemoryMap::GetBestExecutionContextScope(), lldb_private::DataExtractor::GetByteSize(), lldb_private::DataExtractor::GetDataStart(), lldb_private::GetLog(), lldb_private::IRMemoryMap::GetMemoryData(), GetName(), LLDB_INVALID_ADDRESS, LLDB_LOGF, and lldb_private::Status::Success().

◆ DumpToLog()

void EntityVariableBase::DumpToLog	(	IRMemoryMap &	map,
		lldb::addr_t	process_address,
		Log *	log
	)

inlineoverridevirtual

Implements lldb_private::Materializer::Entity.

Definition at line 684 of file Materializer.cpp.

References lldb_private::DumpHexBytes(), lldb_private::DataExtractor::GetAddress(), lldb_private::IRMemoryMap::GetAddressByteSize(), lldb_private::IRMemoryMap::GetByteOrder(), lldb_private::WritableDataBuffer::GetBytes(), lldb_private::DataBufferHeap::GetByteSize(), lldb_private::StreamString::GetString(), LLDB_INVALID_ADDRESS, lldb_private::Stream::Printf(), lldb_private::Stream::PutChar(), lldb_private::Log::PutString(), lldb_private::IRMemoryMap::ReadMemory(), and lldb_private::Status::Success().

◆ GetByteSize()

virtual std::optional< uint64_t > EntityVariableBase::GetByteSize ( ExecutionContextScope * scope ) const

privatepure virtual

Returns size in bytes of the type associated with this variable.

Returns: On success, returns byte size of the type associated with this variable. Returns std::nullopt otherwise.

Implemented in EntityVariable, and EntityValueObject.

◆ GetName()

virtual ConstString EntityVariableBase::GetName ( ) const

privatepure virtual

Implemented in EntityVariable, and EntityValueObject.

◆ GetTypeBitAlign()

virtual std::optional< size_t > EntityVariableBase::GetTypeBitAlign ( ExecutionContextScope * scope ) const

privatepure virtual

Returns alignment of the type associated with this variable in bits.

Returns: On success, returns alignment in bits for the type associated with this variable. Returns std::nullopt otherwise.

Implemented in EntityVariable, and EntityValueObject.

◆ LocationExpressionIsValid()

virtual bool EntityVariableBase::LocationExpressionIsValid ( ) const

privatepure virtual

Returns 'true' if the location expression associated with this variable is valid.

Implemented in EntityVariable, and EntityValueObject.

◆ Materialize()

void EntityVariableBase::Materialize	(	lldb::StackFrameSP &	frame_sp,
		IRMemoryMap &	map,
		lldb::addr_t	process_address,
		Status &	err
	)

inlineoverridevirtual

◆ SetupValueObject()

virtual lldb::ValueObjectSP EntityVariableBase::SetupValueObject ( ExecutionContextScope * scope )

privatepure virtual

Creates and returns ValueObject tied to this variable and prepares Entity for materialization.

Called each time the Materializer (de)materializes a variable. We re-create the ValueObject based on the current ExecutionContextScope since clients such as conditional breakpoints may materialize the same EntityVariable multiple times with different frames.

Each subsequent use of the EntityVariableBase interface will query the newly created ValueObject until this function is called again.

Implemented in EntityVariable, and EntityValueObject.

◆ Wipe()

void EntityVariableBase::Wipe	(	IRMemoryMap &	map,
		lldb::addr_t	process_address
	)

inlineoverridevirtual

Implements lldb_private::Materializer::Entity.

Definition at line 746 of file Materializer.cpp.

References lldb_private::IRMemoryMap::Free(), and LLDB_INVALID_ADDRESS.

Member Data Documentation

◆ m_is_reference

bool EntityVariableBase::m_is_reference = false

protected

Definition at line 794 of file Materializer.cpp.

◆ m_original_data

lldb::DataBufferSP EntityVariableBase::m_original_data

protected

Definition at line 797 of file Materializer.cpp.

◆ m_temporary_allocation

lldb::addr_t EntityVariableBase::m_temporary_allocation = LLDB_INVALID_ADDRESS

protected

Definition at line 795 of file Materializer.cpp.

◆ m_temporary_allocation_size

size_t EntityVariableBase::m_temporary_allocation_size = 0

protected

Definition at line 796 of file Materializer.cpp.

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

Materializer.cpp

Public Member Functions

Protected Attributes

Private Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ ~EntityVariableBase()

◆ EntityVariableBase()

Member Function Documentation

◆ Dematerialize()

◆ DumpToLog()

◆ GetByteSize()

◆ GetName()

◆ GetTypeBitAlign()

◆ LocationExpressionIsValid()

◆ Materialize()

◆ SetupValueObject()

◆ Wipe()

Member Data Documentation

◆ m_is_reference

◆ m_original_data

◆ m_temporary_allocation

◆ m_temporary_allocation_size