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//===-- ValueObjectSyntheticFilter.h ----------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_ValueObjectSyntheticFilter_h_
#define liblldb_ValueObjectSyntheticFilter_h_
// C Includes
// C++ Includes
#include <memory>
// Other libraries and framework includes
// Project includes
#include "lldb/Core/ThreadSafeSTLMap.h"
#include "lldb/Core/ValueObject.h"
namespace lldb_private {
//----------------------------------------------------------------------
// A ValueObject that obtains its children from some source other than
// real information
// This is currently used to implement Python-based children and filters
// but you can bind it to any source of synthetic information and have
// it behave accordingly
//----------------------------------------------------------------------
class ValueObjectSynthetic : public ValueObject
{
public:
~ValueObjectSynthetic() override;
uint64_t
GetByteSize() override;
ConstString
GetTypeName() override;
ConstString
GetQualifiedTypeName() override;
ConstString
GetDisplayTypeName() override;
bool
MightHaveChildren() override;
size_t
CalculateNumChildren(uint32_t max) override;
lldb::ValueType
GetValueType() const override;
lldb::ValueObjectSP
GetChildAtIndex(size_t idx, bool can_create) override;
lldb::ValueObjectSP
GetChildMemberWithName(const ConstString &name, bool can_create) override;
size_t
GetIndexOfChildWithName(const ConstString &name) override;
lldb::ValueObjectSP
GetDynamicValue(lldb::DynamicValueType valueType) override;
bool
IsInScope() override;
bool
HasSyntheticValue() override
{
return false;
}
bool
IsSynthetic() override
{
return true;
}
void
CalculateSyntheticValue(bool use_synthetic) override
{
}
bool
IsDynamic() override
{
return ((m_parent != nullptr) ? m_parent->IsDynamic() : false);
}
lldb::ValueObjectSP
GetStaticValue() override
{
return ((m_parent != nullptr) ? m_parent->GetStaticValue() : GetSP());
}
virtual lldb::DynamicValueType
GetDynamicValueType ()
{
return ((m_parent != nullptr) ? m_parent->GetDynamicValueType() : lldb::eNoDynamicValues);
}
ValueObject *
GetParent() override
{
return ((m_parent != nullptr) ? m_parent->GetParent() : nullptr);
}
const ValueObject *
GetParent() const override
{
return ((m_parent != nullptr) ? m_parent->GetParent() : nullptr);
}
lldb::ValueObjectSP
GetNonSyntheticValue() override;
bool
CanProvideValue() override;
bool
DoesProvideSyntheticValue() override
{
return (UpdateValueIfNeeded(), m_provides_value == eLazyBoolYes);
}
bool
GetIsConstant() const override
{
return false;
}
bool
SetValueFromCString(const char *value_str, Error& error) override;
void
SetFormat(lldb::Format format) override;
lldb::LanguageType
GetPreferredDisplayLanguage() override;
void
SetPreferredDisplayLanguage (lldb::LanguageType);
bool
GetDeclaration(Declaration &decl) override;
uint64_t
GetLanguageFlags () override;
void
SetLanguageFlags (uint64_t flags) override;
protected:
bool
UpdateValue() override;
LazyBool
CanUpdateWithInvalidExecutionContext() override
{
return eLazyBoolYes;
}
CompilerType
GetCompilerTypeImpl() override;
virtual void
CreateSynthFilter ();
// we need to hold on to the SyntheticChildren because someone might delete the type binding while we are alive
lldb::SyntheticChildrenSP m_synth_sp;
std::unique_ptr<SyntheticChildrenFrontEnd> m_synth_filter_ap;
typedef ThreadSafeSTLMap<uint32_t, ValueObject*> ByIndexMap;
typedef ThreadSafeSTLMap<const char*, uint32_t> NameToIndexMap;
typedef ByIndexMap::iterator ByIndexIterator;
typedef NameToIndexMap::iterator NameToIndexIterator;
ByIndexMap m_children_byindex;
NameToIndexMap m_name_toindex;
uint32_t m_synthetic_children_count; // FIXME use the ValueObject's ChildrenManager instead of a special purpose solution
ConstString m_parent_type_name;
LazyBool m_might_have_children;
LazyBool m_provides_value;
private:
friend class ValueObject;
ValueObjectSynthetic (ValueObject &parent, lldb::SyntheticChildrenSP filter);
void
CopyValueData (ValueObject *source);
DISALLOW_COPY_AND_ASSIGN (ValueObjectSynthetic);
};
} // namespace lldb_private
#endif // liblldb_ValueObjectSyntheticFilter_h_
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