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//===-- Coroutines.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 LLDB_SOURCE_PLUGINS_LANGUAGE_CPLUSPLUS_COROUTINES_H
#define LLDB_SOURCE_PLUGINS_LANGUAGE_CPLUSPLUS_COROUTINES_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 {
/// Summary provider for `std::coroutine_handle<T>` from libc++, libstdc++ and
/// MSVC STL.
bool StdlibCoroutineHandleSummaryProvider(ValueObject &valobj, Stream &stream,
const TypeSummaryOptions &options);
/// Synthetic children frontend for `std::coroutine_handle<promise_type>` from
/// libc++, libstdc++ and MSVC STL. Shows the compiler-generated `resume` and
/// `destroy` function pointers as well as the `promise`, if the promise type
/// is `promise_type != void`.
class StdlibCoroutineHandleSyntheticFrontEnd
: public SyntheticChildrenFrontEnd {
public:
StdlibCoroutineHandleSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
~StdlibCoroutineHandleSyntheticFrontEnd() override;
llvm::Expected<uint32_t> CalculateNumChildren() override;
lldb::ValueObjectSP GetChildAtIndex(uint32_t idx) override;
lldb::ChildCacheState Update() override;
bool MightHaveChildren() override;
size_t GetIndexOfChildWithName(ConstString name) override;
private:
lldb::ValueObjectSP m_resume_ptr_sp;
lldb::ValueObjectSP m_destroy_ptr_sp;
lldb::ValueObjectSP m_promise_ptr_sp;
};
SyntheticChildrenFrontEnd *
StdlibCoroutineHandleSyntheticFrontEndCreator(CXXSyntheticChildren *,
lldb::ValueObjectSP);
} // namespace formatters
} // namespace lldb_private
#endif // LLDB_SOURCE_PLUGINS_LANGUAGE_CPLUSPLUS_COROUTINES_H
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