llvm-project/lldb/source/Plugins/Language/CPlusPlus/LibCxxAtomic.cpp

122 lines
3.4 KiB
C++

//===-- LibCxxAtomic.cpp ------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "LibCxxAtomic.h"
using namespace lldb;
using namespace lldb_private;
using namespace lldb_private::formatters;
bool
lldb_private::formatters::LibCxxAtomicSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
{
static ConstString g___a_("__a_");
if (ValueObjectSP child = valobj.GetChildMemberWithName(g___a_, true))
{
std::string summary;
if (child->GetSummaryAsCString(summary, options) && summary.size() > 0)
{
stream.Printf("%s", summary.c_str());
return true;
}
}
return false;
}
namespace lldb_private {
namespace formatters {
class LibcxxStdAtomicSyntheticFrontEnd : public SyntheticChildrenFrontEnd
{
public:
LibcxxStdAtomicSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp);
~LibcxxStdAtomicSyntheticFrontEnd() override = default;
size_t
CalculateNumChildren() override;
lldb::ValueObjectSP
GetChildAtIndex(size_t idx) override;
bool
Update() override;
bool
MightHaveChildren() override;
size_t
GetIndexOfChildWithName(const ConstString &name) override;
lldb::ValueObjectSP
GetSyntheticValue () override;
private:
ValueObject *m_real_child;
};
} // namespace formatters
} // namespace lldb_private
lldb_private::formatters::LibcxxStdAtomicSyntheticFrontEnd::LibcxxStdAtomicSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
SyntheticChildrenFrontEnd(*valobj_sp),
m_real_child(nullptr)
{
}
bool
lldb_private::formatters::LibcxxStdAtomicSyntheticFrontEnd::Update()
{
static ConstString g___a_("__a_");
m_real_child = m_backend.GetChildMemberWithName(g___a_, true).get();
return false;
}
bool
lldb_private::formatters::LibcxxStdAtomicSyntheticFrontEnd::MightHaveChildren()
{
return true;
}
size_t
lldb_private::formatters::LibcxxStdAtomicSyntheticFrontEnd::CalculateNumChildren()
{
return m_real_child ? m_real_child->GetNumChildren() : 0;
}
lldb::ValueObjectSP
lldb_private::formatters::LibcxxStdAtomicSyntheticFrontEnd::GetChildAtIndex(size_t idx)
{
return m_real_child ? m_real_child->GetChildAtIndex(idx, true) : nullptr;
}
size_t
lldb_private::formatters::LibcxxStdAtomicSyntheticFrontEnd::GetIndexOfChildWithName(const ConstString &name)
{
return m_real_child ? m_real_child->GetIndexOfChildWithName(name) : UINT32_MAX;
}
lldb::ValueObjectSP
lldb_private::formatters::LibcxxStdAtomicSyntheticFrontEnd::GetSyntheticValue ()
{
if (m_real_child && m_real_child->CanProvideValue())
return m_real_child->GetSP();
return nullptr;
}
SyntheticChildrenFrontEnd*
lldb_private::formatters::LibcxxAtomicSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
{
if (valobj_sp)
return new LibcxxStdAtomicSyntheticFrontEnd(valobj_sp);
return nullptr;
}