lldb_private::BytecodeSyntheticChildren::FrontEnd Class Reference

Inheritance diagram for lldb_private::BytecodeSyntheticChildren::FrontEnd:

Public Member Functions
	FrontEnd (ValueObject &backend, SyntheticBytecodeImplementation &impl)
lldb::ChildCacheState	Update () override
	This function is assumed to always succeed and if it fails, the front-end should know to deal with it in the correct way (most probably, by refusing to return any children).
llvm::Expected< uint32_t >	CalculateNumChildren () override
lldb::ValueObjectSP	GetChildAtIndex (uint32_t idx) override
llvm::Expected< size_t >	GetIndexOfChildWithName (llvm::StringRef name) override
	Determine the index of a named child.
Public Member Functions inherited from lldb_private::SyntheticChildrenFrontEnd
	SyntheticChildrenFrontEnd (ValueObject &backend)
virtual	~SyntheticChildrenFrontEnd ()=default
virtual llvm::Expected< uint32_t >	CalculateNumChildren (uint32_t max)
uint32_t	CalculateNumChildrenIgnoringErrors (uint32_t max=UINT32_MAX)
virtual bool	MightHaveChildren ()
virtual lldb::ValueObjectSP	GetSyntheticValue ()
virtual std::string	GetSyntheticTypeName ()
virtual void *	GetImplementation ()

Private Attributes
const SyntheticBytecodeImplementation &	m_impl
FormatterBytecode::DataStack	m_init_results
FormatterBytecode::DataStack	m_self

Additional Inherited Members
Public Types inherited from lldb_private::SyntheticChildrenFrontEnd
typedef std::shared_ptr< SyntheticChildrenFrontEnd >	SharedPointer
typedef std::unique_ptr< SyntheticChildrenFrontEnd >	UniquePointer
Protected Member Functions inherited from lldb_private::SyntheticChildrenFrontEnd
lldb::ValueObjectSP	CreateChildValueObjectFromExpression (llvm::StringRef name, llvm::StringRef expression, const ExecutionContext &exe_ctx)
lldb::ValueObjectSP	CreateChildValueObjectFromAddress (llvm::StringRef name, uint64_t address, const ExecutionContext &exe_ctx, CompilerType type, bool do_deref=true)
lldb::ValueObjectSP	CreateChildValueObjectFromData (llvm::StringRef name, const DataExtractor &data, const ExecutionContext &exe_ctx, CompilerType type)
Protected Attributes inherited from lldb_private::SyntheticChildrenFrontEnd
ValueObject &	m_backend

Detailed Description

Definition at line 513 of file TypeSynthetic.h.

Constructor & Destructor Documentation

FrontEnd()

BytecodeSyntheticChildren::FrontEnd::FrontEnd	(	ValueObject &	backend,
		SyntheticBytecodeImplementation &	impl )

Definition at line 278 of file TypeSynthetic.cpp.

References lldb_private::ValueObject::GetSP(), m_impl, lldb_private::FormatterBytecode::DataStack::Push(), and lldb_private::SyntheticChildrenFrontEnd::SyntheticChildrenFrontEnd().

Member Function Documentation

CalculateNumChildren()

llvm::Expected< uint32_t > BytecodeSyntheticChildren::FrontEnd::CalculateNumChildren ( )

overridevirtual

Implements lldb_private::SyntheticChildrenFrontEnd.

Definition at line 386 of file TypeSynthetic.cpp.

References lldb_private::DataFormatters, error(), lldb_private::GetLog(), lldb_private::FormatterBytecode::Interpret(), LLDB_LOG, m_impl, m_self, and UINT32_MAX.

GetChildAtIndex()

lldb::ValueObjectSP BytecodeSyntheticChildren::FrontEnd::GetChildAtIndex ( uint32_t idx )

overridevirtual

Implements lldb_private::SyntheticChildrenFrontEnd.

Definition at line 425 of file TypeSynthetic.cpp.

References lldb_private::DataFormatters, error(), lldb_private::GetLog(), lldb_private::FormatterBytecode::Interpret(), LLDB_LOG, LLDB_LOG_ERROR, m_impl, m_self, and lldb_private::FormatterBytecode::DataStack::Push().

GetIndexOfChildWithName()

llvm::Expected< size_t > BytecodeSyntheticChildren::FrontEnd::GetIndexOfChildWithName ( llvm::StringRef name )

overridevirtual

Determine the index of a named child.

Subscript names ("[N]") are, by default, handled automatically. For data types which need custom subscripting behavior - for example a sparse array, disable automatic subscripting with TypeOptions::eTypeOptionCustomSubscripting.

Reimplemented from lldb_private::SyntheticChildrenFrontEnd.

Definition at line 458 of file TypeSynthetic.cpp.

References lldb_private::DataFormatters, error(), lldb_private::GetLog(), lldb_private::FormatterBytecode::Interpret(), LLDB_LOG, m_impl, and m_self.

Update()

lldb::ChildCacheState BytecodeSyntheticChildren::FrontEnd::Update ( )

overridevirtual

This function is assumed to always succeed and if it fails, the front-end should know to deal with it in the correct way (most probably, by refusing to return any children).

The return value of Update should actually be interpreted as "ValueObjectSynthetic cache is good/bad". If this function returns lldb::ChildCacheState::eReuse, ValueObjectSynthetic is allowed to use the children it fetched previously and cached. Otherwise, ValueObjectSynthetic must throw away its cache, and query again for children.

Implements lldb_private::SyntheticChildrenFrontEnd.

Definition at line 319 of file TypeSynthetic.cpp.

References lldb_private::DataFormatters, lldb::eRefetch, lldb::eReuse, error(), lldb_private::GetLog(), lldb_private::FormatterBytecode::Interpret(), LLDB_LOG, LLDB_LOG_ERROR, lldb_private::SyntheticChildrenFrontEnd::m_backend, m_impl, m_init_results, and m_self.

Member Data Documentation

m_impl

const SyntheticBytecodeImplementation& lldb_private::BytecodeSyntheticChildren::FrontEnd::m_impl

private

Definition at line 524 of file TypeSynthetic.h.

Referenced by CalculateNumChildren(), FrontEnd(), GetChildAtIndex(), GetIndexOfChildWithName(), and Update().

m_init_results

FormatterBytecode::DataStack lldb_private::BytecodeSyntheticChildren::FrontEnd::m_init_results

private

Definition at line 525 of file TypeSynthetic.h.

Referenced by Update().

m_self

FormatterBytecode::DataStack lldb_private::BytecodeSyntheticChildren::FrontEnd::m_self

private

Definition at line 526 of file TypeSynthetic.h.

Referenced by CalculateNumChildren(), GetChildAtIndex(), GetIndexOfChildWithName(), and Update().

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

• TypeSynthetic.h
• TypeSynthetic.cpp