Files
clang-p2996/lldb/source/Plugins/Language/CPlusPlus/LibCxx.h
Adrian Prantl 0e4c482124 Pass ConstString by value (NFC)
My apologies for the large patch. With the exception of ConstString.h
itself it was entirely produced by sed.

ConstString has exactly one const char * data member, so passing a
ConstString by reference is not any more efficient than copying it by
value. In both cases a single pointer is passed. But passing it by
value makes it harder to accidentally return the address of a local
object.

(This fixes rdar://problem/48640859 for the Apple folks)

Differential Revision: https://reviews.llvm.org/D59030

llvm-svn: 355553
2019-03-06 21:22:25 +00:00

160 lines
5.3 KiB
C++

//===-- LibCxx.h ---------------------------------------------------*- C++
//-*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_LibCxx_h_
#define liblldb_LibCxx_h_
#include "lldb/Core/ValueObject.h"
#include "lldb/DataFormatters/TypeSummary.h"
#include "lldb/DataFormatters/TypeSynthetic.h"
#include "lldb/Utility/Stream.h"
namespace lldb_private {
namespace formatters {
bool LibcxxStringSummaryProviderASCII(
ValueObject &valobj, Stream &stream,
const TypeSummaryOptions &summary_options); // libc++ std::string
bool LibcxxStringSummaryProviderUTF16(
ValueObject &valobj, Stream &stream,
const TypeSummaryOptions &summary_options); // libc++ std::u16string
bool LibcxxStringSummaryProviderUTF32(
ValueObject &valobj, Stream &stream,
const TypeSummaryOptions &summary_options); // libc++ std::u32string
bool LibcxxWStringSummaryProvider(
ValueObject &valobj, Stream &stream,
const TypeSummaryOptions &options); // libc++ std::wstring
bool LibcxxOptionalSummaryProvider(
ValueObject &valobj, Stream &stream,
const TypeSummaryOptions &options); // libc++ std::optional<>
bool LibcxxSmartPointerSummaryProvider(
ValueObject &valobj, Stream &stream,
const TypeSummaryOptions
&options); // libc++ std::shared_ptr<> and std::weak_ptr<>
bool LibcxxFunctionSummaryProvider(
ValueObject &valobj, Stream &stream,
const TypeSummaryOptions &options); // libc++ std::function<>
SyntheticChildrenFrontEnd *
LibcxxVectorBoolSyntheticFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP);
bool LibcxxContainerSummaryProvider(ValueObject &valobj, Stream &stream,
const TypeSummaryOptions &options);
class LibCxxMapIteratorSyntheticFrontEnd : public SyntheticChildrenFrontEnd {
public:
LibCxxMapIteratorSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
size_t CalculateNumChildren() override;
lldb::ValueObjectSP GetChildAtIndex(size_t idx) override;
bool Update() override;
bool MightHaveChildren() override;
size_t GetIndexOfChildWithName(ConstString name) override;
~LibCxxMapIteratorSyntheticFrontEnd() override;
private:
ValueObject *m_pair_ptr;
lldb::ValueObjectSP m_pair_sp;
};
SyntheticChildrenFrontEnd *
LibCxxMapIteratorSyntheticFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP);
SyntheticChildrenFrontEnd *
LibCxxVectorIteratorSyntheticFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP);
class LibcxxSharedPtrSyntheticFrontEnd : public SyntheticChildrenFrontEnd {
public:
LibcxxSharedPtrSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
size_t CalculateNumChildren() override;
lldb::ValueObjectSP GetChildAtIndex(size_t idx) override;
bool Update() override;
bool MightHaveChildren() override;
size_t GetIndexOfChildWithName(ConstString name) override;
~LibcxxSharedPtrSyntheticFrontEnd() override;
private:
ValueObject *m_cntrl;
lldb::ValueObjectSP m_count_sp;
lldb::ValueObjectSP m_weak_count_sp;
uint8_t m_ptr_size;
lldb::ByteOrder m_byte_order;
};
SyntheticChildrenFrontEnd *
LibcxxBitsetSyntheticFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP);
SyntheticChildrenFrontEnd *
LibcxxSharedPtrSyntheticFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP);
SyntheticChildrenFrontEnd *
LibcxxStdVectorSyntheticFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP);
SyntheticChildrenFrontEnd *
LibcxxStdListSyntheticFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP);
SyntheticChildrenFrontEnd *
LibcxxStdForwardListSyntheticFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP);
SyntheticChildrenFrontEnd *
LibcxxStdMapSyntheticFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP);
SyntheticChildrenFrontEnd *
LibcxxStdUnorderedMapSyntheticFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP);
SyntheticChildrenFrontEnd *
LibcxxInitializerListSyntheticFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP);
SyntheticChildrenFrontEnd *LibcxxQueueFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP);
SyntheticChildrenFrontEnd *LibcxxTupleFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP);
SyntheticChildrenFrontEnd *
LibcxxOptionalFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP valobj_sp);
SyntheticChildrenFrontEnd *
LibcxxVariantFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP valobj_sp);
} // namespace formatters
} // namespace lldb_private
#endif // liblldb_LibCxx_h_