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libstdc++: Define all std::function members inline

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* include/bits/std_function.h (function): Define all member
	functions inline.
This commit is contained in:
Jonathan Wakely 2020-06-19 14:37:52 +01:00
parent 465520e3eb
commit abed8b56b9
1 changed files with 65 additions and 94 deletions
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159
libstdc++-v3/include/bits/std_function.h
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@ -345,7 +345,16 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
* The newly-created %function contains a copy of the target of @a
* __x (if it has one).
*/
function(const function& __x);
function(const function& __x)
: _Function_base()
{
if (static_cast<bool>(__x))
{
__x._M_manager(_M_functor, __x._M_functor, __clone_functor);
_M_invoker = __x._M_invoker;
_M_manager = __x._M_manager;
}
}
/**
* @brief %Function move constructor.
@ -354,10 +363,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
* The newly-created %function contains the target of @a __x
* (if it has one).
*/
function(function&& __x) noexcept : _Function_base()
{
__x.swap(*this);
}
function(function&& __x) noexcept
: _Function_base()
{ __x.swap(*this); }
/**
* @brief Builds a %function that targets a copy of the incoming
@ -378,7 +386,18 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
template<typename _Functor,
typename = _Requires<__not_<is_same<_Functor, function>>, void>,
typename = _Requires<_Callable<_Functor>, void>>
function(_Functor);
function(_Functor __f)
: _Function_base()
{
typedef _Function_handler<_Res(_ArgTypes...), _Functor> _My_handler;
if (_My_handler::_M_not_empty_function(__f))
{
_My_handler::_M_init_functor(_M_functor, std::move(__f));
_M_invoker = &_My_handler::_M_invoke;
_M_manager = &_My_handler::_M_manager;
}
}
/**
* @brief %Function assignment operator.
@ -508,7 +527,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
* The function call operator invokes the target function object
* stored by @c this.
*/
_Res operator()(_ArgTypes... __args) const;
_Res
operator()(_ArgTypes... __args) const
{
if (_M_empty())
__throw_bad_function_call();
return _M_invoker(_M_functor, std::forward<_ArgTypes>(__args)...);
}
#if __cpp_rtti
// [3.7.2.5] function target access
@ -521,7 +546,18 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
*
* This function will not throw an %exception.
*/
const type_info& target_type() const noexcept;
const type_info&
target_type() const noexcept
{
if (_M_manager)
{
_Any_data __typeinfo_result;
_M_manager(__typeinfo_result, _M_functor, __get_type_info);
return *__typeinfo_result._M_access<const type_info*>();
}
else
return typeid(void);
}
/**
* @brief Access the stored target function object.
@ -534,9 +570,28 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
*
* @{
*/
template<typename _Functor> _Functor* target() noexcept;
template<typename _Functor>
_Functor*
target() noexcept
{
const function* __const_this = this;
const _Functor* __func = __const_this->template target<_Functor>();
return const_cast<_Functor*>(__func);
}
template<typename _Functor> const _Functor* target() const noexcept;
template<typename _Functor>
const _Functor*
target() const noexcept
{
if (typeid(_Functor) == target_type() && _M_manager)
{
_Any_data __ptr;
_M_manager(__ptr, _M_functor, __get_functor_ptr);
return __ptr._M_access<const _Functor*>();
}
else
return nullptr;
}
// @}
#endif
@ -582,90 +637,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
function(_Functor) -> function<_Signature>;
#endif
// Out-of-line member definitions.
template<typename _Res, typename... _ArgTypes>
function<_Res(_ArgTypes...)>::
function(const function& __x)
: _Function_base()
{
if (static_cast<bool>(__x))
{
__x._M_manager(_M_functor, __x._M_functor, __clone_functor);
_M_invoker = __x._M_invoker;
_M_manager = __x._M_manager;
}
}
template<typename _Res, typename... _ArgTypes>
template<typename _Functor, typename, typename>
function<_Res(_ArgTypes...)>::
function(_Functor __f)
: _Function_base()
{
typedef _Function_handler<_Res(_ArgTypes...), _Functor> _My_handler;
if (_My_handler::_M_not_empty_function(__f))
{
_My_handler::_M_init_functor(_M_functor, std::move(__f));
_M_invoker = &_My_handler::_M_invoke;
_M_manager = &_My_handler::_M_manager;
}
}
template<typename _Res, typename... _ArgTypes>
_Res
function<_Res(_ArgTypes...)>::
operator()(_ArgTypes... __args) const
{
if (_M_empty())
__throw_bad_function_call();
return _M_invoker(_M_functor, std::forward<_ArgTypes>(__args)...);
}
#if __cpp_rtti
template<typename _Res, typename... _ArgTypes>
const type_info&
function<_Res(_ArgTypes...)>::
target_type() const noexcept
{
if (_M_manager)
{
_Any_data __typeinfo_result;
_M_manager(__typeinfo_result, _M_functor, __get_type_info);
return *__typeinfo_result._M_access<const type_info*>();
}
else
return typeid(void);
}
template<typename _Res, typename... _ArgTypes>
template<typename _Functor>
_Functor*
function<_Res(_ArgTypes...)>::
target() noexcept
{
const function* __const_this = this;
const _Functor* __func = __const_this->template target<_Functor>();
return const_cast<_Functor*>(__func);
}
template<typename _Res, typename... _ArgTypes>
template<typename _Functor>
const _Functor*
function<_Res(_ArgTypes...)>::
target() const noexcept
{
if (typeid(_Functor) == target_type() && _M_manager)
{
_Any_data __ptr;
_M_manager(__ptr, _M_functor, __get_functor_ptr);
return __ptr._M_access<const _Functor*>();
}
else
return nullptr;
}
#endif
// [20.7.15.2.6] null pointer comparisons
/**