LLDB mainline
|
A class that represents a virtual function table for a C++ class. More...
#include <ValueObjectVTable.h>
Static Public Member Functions | |
static lldb::ValueObjectSP | Create (ValueObject &parent) |
Static Public Member Functions inherited from lldb_private::ValueObject | |
static lldb::ValueObjectSP | CreateValueObjectFromExpression (llvm::StringRef name, llvm::StringRef expression, const ExecutionContext &exe_ctx) |
static lldb::ValueObjectSP | CreateValueObjectFromExpression (llvm::StringRef name, llvm::StringRef expression, const ExecutionContext &exe_ctx, const EvaluateExpressionOptions &options) |
static lldb::ValueObjectSP | CreateValueObjectFromAddress (llvm::StringRef name, uint64_t address, const ExecutionContext &exe_ctx, CompilerType type) |
static lldb::ValueObjectSP | CreateValueObjectFromData (llvm::StringRef name, const DataExtractor &data, const ExecutionContext &exe_ctx, CompilerType type) |
Protected Attributes | |
const Symbol * | m_vtable_symbol = nullptr |
The symbol for the C++ virtual function table. | |
uint32_t | m_num_vtable_entries = 0 |
Cache the number of vtable children when we update the value. | |
uint32_t | m_addr_size = 0 |
Cache the address size in bytes to avoid checking with the process to many times. | |
Protected Attributes inherited from lldb_private::ValueObject | |
ValueObject * | m_parent = nullptr |
The parent value object, or nullptr if this has no parent. | |
ValueObject * | m_root = nullptr |
The root of the hierarchy for this ValueObject (or nullptr if never calculated). | |
EvaluationPoint | m_update_point |
Stores both the stop id and the full context at which this value was last updated. | |
ConstString | m_name |
The name of this object. | |
DataExtractor | m_data |
A data extractor that can be used to extract the value. | |
Value | m_value |
Status | m_error |
An error object that can describe any errors that occur when updating values. | |
std::string | m_value_str |
Cached value string that will get cleared if/when the value is updated. | |
std::string | m_old_value_str |
Cached old value string from the last time the value was gotten. | |
std::string | m_location_str |
Cached location string that will get cleared if/when the value is updated. | |
std::string | m_summary_str |
Cached summary string that will get cleared if/when the value is updated. | |
std::string | m_object_desc_str |
Cached result of the "object printer". | |
CompilerType | m_override_type |
If the type of the value object should be overridden, the type to impose. | |
ValueObjectManager * | m_manager = nullptr |
This object is managed by the root object (any ValueObject that gets created without a parent.) The manager gets passed through all the generations of dependent objects, and will keep the whole cluster of objects alive as long as a shared pointer to any of them has been handed out. | |
ChildrenManager | m_children |
std::map< ConstString, ValueObject * > | m_synthetic_children |
ValueObject * | m_dynamic_value = nullptr |
ValueObject * | m_synthetic_value = nullptr |
ValueObject * | m_deref_valobj = nullptr |
lldb::ValueObjectSP | m_addr_of_valobj_sp |
We have to hold onto a shared pointer to this one because it is created as an independent ValueObjectConstResult, which isn't managed by us. | |
lldb::Format | m_format = lldb::eFormatDefault |
lldb::Format | m_last_format = lldb::eFormatDefault |
uint32_t | m_last_format_mgr_revision = 0 |
lldb::TypeSummaryImplSP | m_type_summary_sp |
lldb::TypeFormatImplSP | m_type_format_sp |
lldb::SyntheticChildrenSP | m_synthetic_children_sp |
ProcessModID | m_user_id_of_forced_summary |
AddressType | m_address_type_of_ptr_or_ref_children = eAddressTypeInvalid |
llvm::SmallVector< uint8_t, 16 > | m_value_checksum |
lldb::LanguageType | m_preferred_display_language = lldb::eLanguageTypeUnknown |
uint64_t | m_language_flags = 0 |
UserID | m_id |
Unique identifier for every value object. | |
struct lldb_private::ValueObject::Bitflags | m_flags |
Private Member Functions | |
ValueObjectVTable (ValueObject &parent) | |
ValueObjectVTable (const ValueObjectVTable &)=delete | |
const ValueObjectVTable & | operator= (const ValueObjectVTable &)=delete |
A class that represents a virtual function table for a C++ class.
ValueObject::GetError() will be in the success state if this value represents a C++ class with a vtable, or an appropriate error describing that the object isn't a C++ class with a vtable or not a C++ class.
ValueObject::GetName() will be the demangled symbol name for the virtual function table like "vtable for <classname>".
ValueObject::GetValueAsCString() will be the address of the first vtable entry if the current ValueObject is a class with a vtable, or nothing the current ValueObject is not a C++ class or not a C++ class that has a vtable.
ValueObject::GetValueAtUnsigned(...) will return the address of the first vtable entry.
ValueObject::GetAddressOf() will return the address of the vtable pointer found in the parent ValueObject.
ValueObject::GetNumChildren() will return the number of virtual function pointers in the vtable, or zero on error.
ValueObject::GetChildAtIndex(...) will return each virtual function pointer as a ValueObject object.
The child ValueObjects will have the following values:
ValueObject::GetError() will indicate success if the vtable entry was successfully read from memory, or an error if not.
ValueObject::GetName() will be the vtable function index in the form "[%u]" where u is the index.
ValueObject::GetValueAsCString() will be the virtual function pointer value
ValueObject::GetValueAtUnsigned(...) will return the virtual function pointer value.
ValueObject::GetAddressOf() will return the address of the virtual function pointer.
ValueObject::GetNumChildren() returns 0
Definition at line 59 of file ValueObjectVTable.h.
|
overridedefault |
|
private |
Definition at line 153 of file ValueObjectVTable.cpp.
References lldb::eFormatPointer, and lldb_private::ValueObject::SetFormat().
|
privatedelete |
|
overridevirtual |
Should only be called by ValueObject::GetNumChildren().
Implements lldb_private::ValueObject.
Definition at line 164 of file ValueObjectVTable.cpp.
References m_num_vtable_entries, and lldb_private::ValueObject::UpdateValueIfNeeded().
|
static |
Definition at line 149 of file ValueObjectVTable.cpp.
Referenced by lldb_private::ValueObject::GetVTable().
|
overridevirtual |
Should only be called by ValueObject::GetChildAtIndex().
Reimplemented from lldb_private::ValueObject.
Definition at line 188 of file ValueObjectVTable.cpp.
References m_addr_size.
|
overridevirtual |
Implements lldb_private::ValueObject.
Definition at line 158 of file ValueObjectVTable.cpp.
References lldb_private::Symbol::GetByteSize(), and m_vtable_symbol.
|
overrideprotectedvirtual |
Implements lldb_private::ValueObject.
Definition at line 274 of file ValueObjectVTable.cpp.
|
overridevirtual |
Reimplemented from lldb_private::ValueObject.
Definition at line 180 of file ValueObjectVTable.cpp.
References lldb_private::Symbol::GetDisplayName(), and m_vtable_symbol.
|
overridevirtual |
Reimplemented from lldb_private::ValueObject.
Definition at line 178 of file ValueObjectVTable.cpp.
References GetTypeName().
|
overridevirtual |
Reimplemented from lldb_private::ValueObject.
Definition at line 172 of file ValueObjectVTable.cpp.
References lldb_private::Symbol::GetName(), and m_vtable_symbol.
Referenced by GetQualifiedTypeName(), and UpdateValue().
|
overridevirtual |
Implements lldb_private::ValueObject.
Definition at line 170 of file ValueObjectVTable.cpp.
References lldb::eValueTypeVTable.
|
overridevirtual |
Reimplemented from lldb_private::ValueObject.
Definition at line 186 of file ValueObjectVTable.cpp.
References lldb_private::ValueObject::GetParent(), and lldb_private::ValueObject::IsInScope().
|
privatedelete |
|
overrideprotectedvirtual |
Implements lldb_private::ValueObject.
Definition at line 196 of file ValueObjectVTable.cpp.
References lldb_private::Status::Clear(), lldb::eBasicTypeUnsignedLong, lldb::eLanguageTypeC_plus_plus, lldb_private::ValueObject::GetAddressOf(), lldb_private::Symbol::GetByteSize(), lldb_private::Symbol::GetByteSizeIsValid(), lldb_private::ConstString::GetCString(), lldb_private::Mangled::GetDemangledName(), lldb_private::Symbol::GetLoadAddress(), lldb_private::Symbol::GetMangled(), lldb_private::Language::GetNameForLanguageType(), lldb_private::ValueObject::GetObjectRuntimeLanguage(), lldb_private::ValueObject::GetParent(), lldb_private::ValueObject::GetProcessSP(), lldb_private::Value::GetScalar(), lldb_private::ValueObject::GetTargetSP(), GetTypeName(), lldb_private::LanguageRuntime::GetVTableInfo(), lldb_private::Value::LoadAddress, m_addr_size, lldb_private::ValueObject::Bitflags::m_children_count_valid, lldb_private::ValueObject::m_error, lldb_private::ValueObject::m_flags, m_num_vtable_entries, lldb_private::ValueObject::m_value, m_vtable_symbol, lldb_private::Value::SetCompilerType(), lldb_private::Status::SetErrorString(), lldb_private::Status::SetErrorStringWithFormat(), lldb_private::ValueObject::SetName(), lldb_private::ValueObject::SetValueDidChange(), lldb_private::ValueObject::SetValueIsValid(), and lldb_private::Value::SetValueType().
|
protected |
Cache the address size in bytes to avoid checking with the process to many times.
Definition at line 93 of file ValueObjectVTable.h.
Referenced by CreateChildAtIndex(), and UpdateValue().
|
protected |
Cache the number of vtable children when we update the value.
Definition at line 90 of file ValueObjectVTable.h.
Referenced by CalculateNumChildren(), and UpdateValue().
|
protected |
The symbol for the C++ virtual function table.
Definition at line 88 of file ValueObjectVTable.h.
Referenced by GetByteSize(), GetDisplayTypeName(), GetTypeName(), and UpdateValue().