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#pragma once
#ifndef FUNCTION_VIEW_INL_H_
#error "Direct inclusion of this file is not allowed, include function_view.h"
// For the sake of sane code completion.
#include "function_view.h"
#endif
#include <library/cpp/yt/assert/assert.h>
namespace NYT {
////////////////////////////////////////////////////////////////////////////////
template <class TResult, bool NoExcept, class... TArgs>
template <CTypeErasable<TResult(TArgs...) noexcept(NoExcept)> TConcrete>
TFunctionView<TResult(TArgs...) noexcept(NoExcept)>::TFunctionView(TConcrete& concreteRef) noexcept
: TFunctionView(&concreteRef)
{ }
template <class TResult, bool NoExcept, class... TArgs>
template <CTypeErasable<TResult(TArgs...) noexcept(NoExcept)> TConcrete>
TFunctionView<TResult(TArgs...) noexcept(NoExcept)>::TFunctionView(TConcrete* concretePtr) noexcept
{
Ptr_ = reinterpret_cast<void*>(concretePtr);
Invoke_ = &TFunctionView::ConcreteInvoke<TConcrete>;
}
template <class TResult, bool NoExcept, class... TArgs>
TFunctionView<TResult(TArgs...) noexcept(NoExcept)>
TFunctionView<TResult(TArgs...) noexcept(NoExcept)>::Release() noexcept
{
auto copy = *this;
Reset();
return copy;
}
template <class TResult, bool NoExcept, class... TArgs>
TResult TFunctionView<TResult(TArgs...) noexcept(NoExcept)>::operator()(TArgs... args) noexcept(NoExcept)
{
YT_VERIFY(Ptr_);
return Invoke_(std::forward<TArgs>(args)..., Ptr_);
}
template <class TResult, bool NoExcept, class... TArgs>
template <class TConcrete>
TResult TFunctionView<TResult(TArgs...) noexcept(NoExcept)>::ConcreteInvoke(TArgs... args, TErasedPtr ptr) noexcept(NoExcept)
{
return (*reinterpret_cast<TConcrete*>(ptr))(std::forward<TArgs>(args)...);
}
template <class TResult, bool NoExcept, class... TArgs>
TFunctionView<TResult(TArgs...) noexcept(NoExcept)>::operator bool() const noexcept
{
return IsValid();
}
template <class TResult, bool NoExcept, class... TArgs>
bool TFunctionView<TResult(TArgs...) noexcept(NoExcept)>::IsValid() const noexcept
{
return Ptr_ != nullptr;
}
template <class TResult, bool NoExcept, class... TArgs>
void TFunctionView<TResult(TArgs...) noexcept(NoExcept)>::Reset() noexcept
{
Ptr_ = nullptr;
}
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT
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