LLDB mainline
NSErrorSyntheticFrontEnd Class Reference
Inheritance diagram for NSErrorSyntheticFrontEnd:
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Public Member Functions

 NSErrorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp)
 ~NSErrorSyntheticFrontEnd () override=default
llvm::Expected< uint32_t > CalculateNumChildren () override
lldb::ValueObjectSP GetChildAtIndex (uint32_t idx) override
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< size_t > GetIndexOfChildWithName (ConstString name) override
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 ConstString GetSyntheticTypeName ()

Private Attributes

ValueObjectm_child_ptr = nullptr
ValueObjectSP m_child_sp

Additional Inherited Members

Public Types inherited from lldb_private::SyntheticChildrenFrontEnd
typedef std::shared_ptr< SyntheticChildrenFrontEndSharedPointer
typedef std::unique_ptr< SyntheticChildrenFrontEndAutoPointer
Protected Member Functions inherited from lldb_private::SyntheticChildrenFrontEnd
void SetValid (bool valid)
bool IsValid ()
lldb::ValueObjectSP CreateValueObjectFromExpression (llvm::StringRef name, llvm::StringRef expression, const ExecutionContext &exe_ctx)
lldb::ValueObjectSP CreateValueObjectFromAddress (llvm::StringRef name, uint64_t address, const ExecutionContext &exe_ctx, CompilerType type, bool do_deref=true)
lldb::ValueObjectSP CreateValueObjectFromData (llvm::StringRef name, const DataExtractor &data, const ExecutionContext &exe_ctx, CompilerType type)
Protected Attributes inherited from lldb_private::SyntheticChildrenFrontEnd
ValueObjectm_backend

Detailed Description

Definition at line 110 of file NSError.cpp.

Constructor & Destructor Documentation

◆ NSErrorSyntheticFrontEnd()

NSErrorSyntheticFrontEnd::NSErrorSyntheticFrontEnd ( lldb::ValueObjectSP valobj_sp)
inline

◆ ~NSErrorSyntheticFrontEnd()

NSErrorSyntheticFrontEnd::~NSErrorSyntheticFrontEnd ( )
overridedefault

Member Function Documentation

◆ CalculateNumChildren()

llvm::Expected< uint32_t > NSErrorSyntheticFrontEnd::CalculateNumChildren ( )
inlineoverridevirtual

Implements lldb_private::SyntheticChildrenFrontEnd.

Definition at line 119 of file NSError.cpp.

References m_child_ptr, and m_child_sp.

◆ GetChildAtIndex()

lldb::ValueObjectSP NSErrorSyntheticFrontEnd::GetChildAtIndex ( uint32_t idx)
inlineoverridevirtual

Implements lldb_private::SyntheticChildrenFrontEnd.

Definition at line 127 of file NSError.cpp.

References m_child_ptr, and m_child_sp.

◆ GetIndexOfChildWithName()

llvm::Expected< size_t > NSErrorSyntheticFrontEnd::GetIndexOfChildWithName ( ConstString name)
inlineoverridevirtual

◆ Update()

lldb::ChildCacheState NSErrorSyntheticFrontEnd::Update ( )
inlineoverridevirtual

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 136 of file NSError.cpp.

References lldb_private::SyntheticChildrenFrontEnd::CreateValueObjectFromData(), DerefToNSErrorPointer(), lldb::eBasicTypeObjCID, lldb::eRefetch, error(), lldb_private::formatters::InferiorSizedWord::GetAsData(), lldb_private::ScratchTypeSystemClang::GetForTarget(), LLDB_INVALID_ADDRESS, lldb_private::SyntheticChildrenFrontEnd::m_backend, m_child_ptr, and m_child_sp.

Member Data Documentation

◆ m_child_ptr

ValueObject* NSErrorSyntheticFrontEnd::m_child_ptr = nullptr
private

Definition at line 183 of file NSError.cpp.

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

◆ m_child_sp

ValueObjectSP NSErrorSyntheticFrontEnd::m_child_sp
private

Definition at line 184 of file NSError.cpp.

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


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