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Added etl::function traits

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Removed private delegate function_traits
Added etl::type_list + etl::nth_type overloads
This commit is contained in:
John Wellbelove 2025-02-07 18:26:39 +00:00
parent dd4d0088c5
commit 1f897e1095
9 changed files with 593 additions and 61 deletions
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136
include/etl/function_traits.h Normal file
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@ -0,0 +1,136 @@
///\file
/******************************************************************************
The MIT License(MIT)
Embedded Template Library.
https://github.com/ETLCPP/etl
https://www.etlcpp.com
Copyright(c) 2025 John Wellbelove
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files(the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions :
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
******************************************************************************/
#ifndef ETL_FUNCTION_TRAITS_INCLUDED
#define ETL_FUNCTION_TRAITS_INCLUDED
#include "platform.h"
#include "type_list.h"
#include "type_traits.h"
#if ETL_USING_CPP11
namespace etl
{
//***************************************************************************
/// A template to extract the function type traits.
//***************************************************************************
template <typename T>
struct function_traits;
//***************************************************************************
/// Specialisation for function pointers
//***************************************************************************
template <typename TReturn, typename... TArgs>
struct function_traits<TReturn(*)(TArgs...)>
{
using function_type = TReturn(TArgs...); ///< The signature of the function.
using return_type = TReturn; ///< The return type.
using object_type = void; ///< The object type, if a member function.
using argument_types = etl::type_list<TArgs...>; ///< An etl::type_list containing the function argument types.
static constexpr bool is_function = true; ///< <b>true</b> if the type is a free, static or global function, otherwise <b>false</b>.
static constexpr bool is_member_function = false; ///< <b>true</b> if the type is a member function, otherwise <b>false</b>.
static constexpr bool is_const = false; ///< <b>true</b> if the type is a const member function, otherwise <b>false</b>.
static constexpr size_t argument_count = sizeof...(TArgs); ///< The number of arguments that the function takes.
};
template <typename TReturn, typename... TArgs>
constexpr bool function_traits<TReturn(*)(TArgs...)>::is_function;
template <typename TReturn, typename... TArgs>
constexpr bool function_traits<TReturn(*)(TArgs...)>::is_member_function;
template <typename TReturn, typename... TArgs>
constexpr bool function_traits<TReturn(*)(TArgs...)>::is_const;
template <typename TReturn, typename... TArgs>
constexpr size_t function_traits<TReturn(*)(TArgs...)>::argument_count;
//***************************************************************************
/// Specialisation for member function pointers
//***************************************************************************
template <typename TReturn, typename TObject, typename... TArgs>
struct function_traits<TReturn(TObject::*)(TArgs...)>
{
using function_type = TReturn(TArgs...); ///< The signature of the function.
using return_type = TReturn; ///< The return type.
using object_type = TObject; ///< The object type, if a member function.
using argument_types = etl::type_list<TArgs...>; ///< An etl::type_list containing the function argument types.
static constexpr bool is_function = false; ///< <b>true</b> if the type is a free, static or global function, otherwise <b>false</b>.
static constexpr bool is_member_function = true; ///< <b>true</b> if the type is a member function, otherwise <b>false</b>.
static constexpr bool is_const = false; ///< <b>true</b> if the type is a const member function, otherwise <b>false</b>.
static constexpr size_t argument_count = sizeof...(TArgs); ///< The number of arguments that the function takes.
};
template <typename TReturn, typename TObject, typename... TArgs>
constexpr bool function_traits<TReturn(TObject::*)(TArgs...)>::is_function;
template <typename TReturn, typename TObject, typename... TArgs>
constexpr bool function_traits<TReturn(TObject::*)(TArgs...)>::is_member_function;
template <typename TReturn, typename TObject, typename... TArgs>
constexpr bool function_traits<TReturn(TObject::*)(TArgs...)>::is_const;
template <typename TReturn, typename TObject, typename... TArgs>
constexpr size_t function_traits<TReturn(TObject::*)(TArgs...)>::argument_count;
//***************************************************************************
/// Specialisation for const member function pointers
//***************************************************************************
template <typename TReturn, typename TObject, typename... TArgs>
struct function_traits<TReturn(TObject::*)(TArgs...) const>
{
using function_type = TReturn(TArgs...); ///< The signature of the function.
using return_type = TReturn; ///< The return type.
using object_type = TObject; ///< The object type, if a member function.
using argument_types = etl::type_list<TArgs...>; ///< An etl::type_list containing the function argument types.
static constexpr bool is_function = false; ///< <b>true</b> if the type is a free, static or global function, otherwise <b>false</b>.
static constexpr bool is_member_function = true; ///< <b>true</b> if the type is a member function, otherwise <b>false</b>.
static constexpr bool is_const = true; ///< <b>true</b> if the type is a const member function, otherwise <b>false</b>.
static constexpr size_t argument_count = sizeof...(TArgs); ///< The number of arguments that the function takes.
};
template <typename TReturn, typename TObject, typename... TArgs>
constexpr bool function_traits<TReturn(TObject::*)(TArgs...) const>::is_function;
template <typename TReturn, typename TObject, typename... TArgs>
constexpr bool function_traits<TReturn(TObject::*)(TArgs...) const>::is_member_function;
template <typename TReturn, typename TObject, typename... TArgs>
constexpr bool function_traits<TReturn(TObject::*)(TArgs...) const>::is_const;
template <typename TReturn, typename TObject, typename... TArgs>
constexpr size_t function_traits<TReturn(TObject::*)(TArgs...) const>::argument_count;
}
#endif
#endif

2
include/etl/nth_type.h
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@ -63,7 +63,7 @@ namespace etl
};
//***************************************************************************
/// Finds the 0thth type in a variadic type parameter.
/// Finds the 0th type in a variadic type parameter.
//***************************************************************************
template <size_t N>
struct nth_type<N>

70
include/etl/private/delegate_cpp11.h
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@ -52,6 +52,7 @@ Original publication: https://www.codeproject.com/Articles/1170503/The-Impossibl
#include "../error_handler.h"
#include "../exception.h"
#include "../type_traits.h"
#include "../function_traits.h"
#include "../utility.h"
#include "../optional.h"
@ -659,57 +660,6 @@ namespace etl
};
#if ETL_USING_CPP17
namespace private_delegate
{
//***************************************************************************
/// A template to extract the function type traits.
//***************************************************************************
template <typename T>
struct function_traits;
//***************************************************************************
/// Specialisation for function pointers
//***************************************************************************
template <typename TReturn, typename... TArgs>
struct function_traits<TReturn(*)(TArgs...)>
{
using function_type = TReturn(TArgs...);
enum : bool
{
is_const = false
};
};
//***************************************************************************
/// Specialisation for member function pointers
//***************************************************************************
template <typename TReturn, typename TObject, typename... TArgs>
struct function_traits<TReturn(TObject::*)(TArgs...)>
{
using function_type = TReturn(TArgs...);
enum : bool
{
is_const = false
};
};
//***************************************************************************
/// Specialisation for const member function pointers
//***************************************************************************
template <typename TReturn, typename TObject, typename... TArgs>
struct function_traits<TReturn(TObject::*)(TArgs...) const>
{
using function_type = TReturn(TArgs...);
enum : bool
{
is_const = true
};
};
}
//*************************************************************************
/// Make a delegate from a free function.
//*************************************************************************
@ -717,7 +667,7 @@ namespace etl
ETL_NODISCARD
constexpr auto make_delegate() ETL_NOEXCEPT
{
using function_type = typename etl::private_delegate::function_traits<decltype(Function)>::function_type;
using function_type = typename etl::function_traits<decltype(Function)>::function_type;
return etl::delegate<function_type>::template create<Function>();
}
@ -729,7 +679,7 @@ namespace etl
ETL_NODISCARD
constexpr auto make_delegate(TLambda& instance) ETL_NOEXCEPT
{
using function_type = typename etl::private_delegate::function_traits<decltype(&TLambda::operator())>::function_type;
using function_type = typename etl::function_traits<decltype(&TLambda::operator())>::function_type;
return etl::delegate<function_type>(instance);
}
@ -741,7 +691,7 @@ namespace etl
ETL_NODISCARD
constexpr auto make_delegate() ETL_NOEXCEPT
{
using function_type = typename etl::private_delegate::function_traits<decltype(&T::operator())>::function_type;
using function_type = typename etl::function_traits<decltype(&T::operator())>::function_type;
return etl::delegate<function_type>::template create<T, Instance>();
}
@ -749,11 +699,11 @@ namespace etl
//*************************************************************************
/// Make a delegate from a member function at compile time.
//*************************************************************************
template <typename T, auto Method, T& Instance, typename = etl::enable_if_t<!private_delegate::function_traits<decltype(Method)>::is_const>>
template <typename T, auto Method, T& Instance, typename = etl::enable_if_t<!etl::function_traits<decltype(Method)>::is_const>>
ETL_NODISCARD
constexpr auto make_delegate() ETL_NOEXCEPT
{
using function_type = typename etl::private_delegate::function_traits<decltype(Method)>::function_type;
using function_type = typename etl::function_traits<decltype(Method)>::function_type;
return etl::delegate<function_type>::template create<T, Method, Instance>();
}
@ -761,11 +711,11 @@ namespace etl
//*************************************************************************
/// Make a delegate from a const member function at compile time.
//*************************************************************************
template <typename T, auto Method, const T& Instance, typename = etl::enable_if_t<private_delegate::function_traits<decltype(Method)>::is_const>>
template <typename T, auto Method, const T& Instance, typename = etl::enable_if_t<etl::function_traits<decltype(Method)>::is_const>>
ETL_NODISCARD
constexpr auto make_delegate() ETL_NOEXCEPT
{
using function_type = typename etl::private_delegate::function_traits<decltype(Method)>::function_type;
using function_type = typename etl::function_traits<decltype(Method)>::function_type;
return etl::delegate<function_type>::template create<T, Method, Instance>();
}
@ -777,7 +727,7 @@ namespace etl
ETL_NODISCARD
constexpr auto make_delegate(T& instance) ETL_NOEXCEPT
{
using function_type = typename etl::private_delegate::function_traits<decltype(Method)>::function_type;
using function_type = typename etl::function_traits<decltype(Method)>::function_type;
return etl::delegate<function_type>::template create<T, Method>(instance);
}
@ -789,7 +739,7 @@ namespace etl
ETL_NODISCARD
constexpr auto make_delegate(const T& instance) ETL_NOEXCEPT
{
using function_type = typename etl::private_delegate::function_traits<decltype(Method)>::function_type;
using function_type = typename etl::function_traits<decltype(Method)>::function_type;
return etl::delegate<function_type>::template create<T, Method>(instance);
}

186
include/etl/type_list.h Normal file
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@ -0,0 +1,186 @@
/******************************************************************************
The MIT License(MIT)
Embedded Template Library.
https://github.com/ETLCPP/etl
https://www.etlcpp.com
Copyright(c) 2025 John Wellbelove
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files(the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions :
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
******************************************************************************/
#ifndef ETL_TYPE_LIST_INCLUDED
#define ETL_TYPE_LIST_INCLUDED
#include "platform.h"
#include "nth_type.h"
#include "static_assert.h"
#include "type_traits.h"
#include "utility.h"
#if ETL_USING_CPP11
namespace etl
{
//***************************************************************************
/// Type list forward declaration.
//***************************************************************************
template <typename... TTypes>
struct type_list;
//***************************************************************************
/// The empty type list.
//***************************************************************************
template <>
struct type_list<>
{
static constexpr size_t size = 0U;
using index_sequence_type = etl::make_index_sequence<0>; ///< The index_sequence type for this type_list.
private:
type_list() ETL_DELETE;
type_list(const type_list&) ETL_DELETE;
type_list& operator =(const type_list&) ETL_DELETE;
};
//***************************************************************************
/// Recursive type list implementation for multiple types.
//***************************************************************************
template <typename THead, typename... TTail>
struct type_list<THead, TTail...> : type_list<TTail...>
{
using type = THead;
static constexpr size_t size = sizeof...(TTail) + 1U;
using index_sequence_type = etl::make_index_sequence<sizeof...(TTail) + 1U>; ///< The index_sequence type for this type_list.
private:
type_list() ETL_DELETE;
type_list(const type_list&) ETL_DELETE;
type_list& operator =(const type_list&) ETL_DELETE;
};
//***************************************************************************
/// Type list implementation for one type.
//***************************************************************************
template <typename THead>
struct type_list<THead> : type_list<>
{
using type = THead;
static constexpr size_t size = 1U;
using index_sequence_type = etl::make_index_sequence<1>; ///< The index_sequence type for this type_list.
private:
type_list() ETL_DELETE;
type_list(const type_list&) ETL_DELETE;
type_list& operator =(const type_list&) ETL_DELETE;
};
//***************************************************************************
/// Specialisation of etl::nth_type for etl::type_list
//***************************************************************************
template <size_t N, typename THead, typename... TTail>
struct nth_type<N, type_list<THead, TTail...>>
{
ETL_STATIC_ASSERT(N <= sizeof...(TTail), "etl::nth_type out of range for etl::type_list");
using type = typename nth_type<N - 1, type_list<TTail...>>::type;
};
//***************************************************************************
/// Specialisation of etl::nth_type for etl::type_list with index of 0
//***************************************************************************
template <typename THead, typename... TTail>
struct nth_type<0, type_list<THead, TTail...>>
{
using type = THead;
};
//***************************************************************************
/// Specialisation of etl::nth_type for empty etl::type_list
//***************************************************************************
template <size_t N>
struct nth_type<N, type_list<>>
{
};
//***************************************************************************
/// Declares a new type_list by selecting types from a given type_list, according to an index sequence.
//***************************************************************************
template <typename TTypeList, size_t... Indices>
struct type_list_select
{
using type = type_list<nth_type_t<Indices, TTypeList>...>;
};
template <typename TTypeList, size_t... Indices>
using type_list_select_t = typename type_list_select<TTypeList, Indices...>::type;
//***************************************************************************
/// Type list size.
//***************************************************************************
template <typename... TTypes>
struct type_list_size;
template <typename... TTypes>
struct type_list_size<etl::type_list<TTypes...>> : public etl::integral_constant<size_t, sizeof...(TTypes)>
{
};
#if ETL_USING_CPP17
template <typename... TTypes>
inline constexpr size_t type_list_size_v = type_list_size<etl::type_list<TTypes...>>::value;
#endif
//***************************************************************************
/// Concatenates two or more type_lists.
//***************************************************************************
template <typename... TypeLists>
struct type_list_cat;
//***************************************************************************
/// Concatenates two or more type_lists.
/// Specialisation for a single type_list (base case)
//***************************************************************************
template <typename TypeList>
struct type_list_cat<TypeList>
{
using type = TypeList;
};
//***************************************************************************
/// Concatenates two or more type_lists.
/// Specialisation for two or more type_lists
//***************************************************************************
template <typename... TTypes1, typename... TTypes2, typename... TTail>
struct type_list_cat<etl::type_list<TTypes1...>, etl::type_list<TTypes2...>, TTail...>
{
using type = typename type_list_cat<etl::type_list<TTypes1..., TTypes2...>, TTail...>::type;
};
}
#endif
#endif

1
test/CMakeLists.txt
View File

@ -143,6 +143,7 @@ add_executable(etl_tests
test_fsm.cpp
test_function.cpp
test_functional.cpp
test_function_traits.cpp
test_gamma.cpp
test_hash.cpp
test_hfsm.cpp

1
test/syntax_check/CMakeLists.txt
View File

@ -178,6 +178,7 @@ target_sources(tests PRIVATE
fsm.h.t.cpp
function.h.t.cpp
functional.h.t.cpp
function_traits.h.t.cpp
gamma.h.t.cpp
gcd.h.t.cpp
generic_pool.h.t.cpp

29
test/syntax_check/function_traits.h.t.cpp Normal file
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@ -0,0 +1,29 @@
/******************************************************************************
The MIT License(MIT)
Embedded Template Library.
https://github.com/ETLCPP/etl
https://www.etlcpp.com
Copyright(c) 2025 John Wellbelove
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files(the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions :
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
******************************************************************************/
#include <etl/function_traits.h>

211
test/test_function_traits.cpp Normal file
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@ -0,0 +1,211 @@
/******************************************************************************
The MIT License(MIT)
Embedded Template Library.
https://github.com/ETLCPP/etl
https://www.etlcpp.com
Copyright(c) 2024 John Wellbelove
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files(the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions :
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
******************************************************************************/
#include "unit_test_framework.h"
#include <type_traits>
#include "etl/function_traits.h"
#include "etl/type_list.h"
namespace
{
//*****************************************************************************
// The free function taking no parameters.
//*****************************************************************************
void free_void()
{
}
//*****************************************************************************
// The free function taking an int parameter.
//*****************************************************************************
int free_int(int i, int j)
{
return i + j;
}
//*****************************************************************************
// The test class with member functions.
//*****************************************************************************
class Object
{
public:
//*******************************************
// void
void member_void()
{
}
void member_void_const() const
{
}
//*******************************************
// int
int member_int(int i, int j)
{
return i + j;
}
int member_int_const(int i, int j) const
{
return i + j;
}
//*******************************************
// static
static void member_static(int j)
{
(void)j;
}
};
}
namespace
{
SUITE(test_function_traits)
{
//*************************************************************************
TEST(test_free_function_free_void)
{
free_void(); // Keep clang happy
using traits = etl::function_traits<decltype(&free_void)>;
CHECK_TRUE((std::is_same<void(void), traits::function_type>::value));
CHECK_TRUE((std::is_same<void, traits::return_type>::value));
CHECK_TRUE((std::is_same<void, traits::object_type>::value));
CHECK_TRUE((std::is_same<etl::type_list<>, traits::argument_types>::value));
CHECK_TRUE(traits::is_function);
CHECK_FALSE(traits::is_member_function);
CHECK_FALSE(traits::is_const);
CHECK_EQUAL(0, traits::argument_count);
}
//*************************************************************************
TEST(test_free_function_free_int)
{
free_int(1, 2); // Keep clang happy
using traits = etl::function_traits<decltype(&free_int)>;
CHECK_TRUE((std::is_same<int(int, int), traits::function_type>::value));
CHECK_TRUE((std::is_same<int, traits::return_type>::value));
CHECK_TRUE((std::is_same<void, traits::object_type>::value));
CHECK_TRUE((std::is_same<etl::type_list<int, int>, traits::argument_types>::value));
CHECK_TRUE(traits::is_function);
CHECK_FALSE(traits::is_member_function);
CHECK_FALSE(traits::is_const);
CHECK_EQUAL(2 , traits::argument_count);
}
//*************************************************************************
TEST(test_member_function_void)
{
using traits = etl::function_traits<decltype(&Object::member_void)>;
CHECK_TRUE((std::is_same<void(void), traits::function_type>::value));
CHECK_TRUE((std::is_same<void, traits::return_type>::value));
CHECK_TRUE((std::is_same<Object, traits::object_type>::value));
CHECK_TRUE((std::is_same<etl::type_list<>, traits::argument_types>::value));
CHECK_FALSE(traits::is_function);
CHECK_TRUE(traits::is_member_function);
CHECK_FALSE(traits::is_const);
CHECK_EQUAL(0, traits::argument_count);
}
//*************************************************************************
TEST(test_member_function_void_const)
{
using traits = etl::function_traits<decltype(&Object::member_void_const)>;
CHECK_TRUE((std::is_same<void(void), traits::function_type>::value));
CHECK_TRUE((std::is_same<void, traits::return_type>::value));
CHECK_TRUE((std::is_same<Object, traits::object_type>::value));
CHECK_TRUE((std::is_same<etl::type_list<>, traits::argument_types>::value));
CHECK_FALSE(traits::is_function);
CHECK_TRUE(traits::is_member_function);
CHECK_TRUE(traits::is_const);
CHECK_EQUAL(0, traits::argument_count);
}
//*************************************************************************
TEST(test_member_function_int)
{
using traits = etl::function_traits<decltype(&Object::member_int)>;
CHECK_TRUE((std::is_same<int(int, int), traits::function_type>::value));
CHECK_TRUE((std::is_same<int, traits::return_type>::value));
CHECK_TRUE((std::is_same<Object, traits::object_type>::value));
CHECK_TRUE((std::is_same<etl::type_list<int, int>, traits::argument_types>::value));
CHECK_FALSE(traits::is_function);
CHECK_TRUE(traits::is_member_function);
CHECK_FALSE(traits::is_const);
CHECK_EQUAL(2, traits::argument_count);
}
//*************************************************************************
TEST(test_member_function_int_const)
{
using traits = etl::function_traits<decltype(&Object::member_int_const)>;
CHECK_TRUE((std::is_same<int(int, int), traits::function_type>::value));
CHECK_TRUE((std::is_same<int, traits::return_type>::value));
CHECK_TRUE((std::is_same<Object, traits::object_type>::value));
CHECK_TRUE((std::is_same<etl::type_list<int, int>, traits::argument_types>::value));
CHECK_FALSE(traits::is_function);
CHECK_TRUE(traits::is_member_function);
CHECK_TRUE(traits::is_const);
CHECK_EQUAL(2, traits::argument_count);
}
//*************************************************************************
TEST(test_member_function_static)
{
using traits = etl::function_traits<decltype(&Object::member_static)>;
CHECK_TRUE((std::is_same<void(int), traits::function_type>::value));
CHECK_TRUE((std::is_same<void, traits::return_type>::value));
CHECK_TRUE((std::is_same<void, traits::object_type>::value));
CHECK_TRUE((std::is_same<etl::type_list<int>, traits::argument_types>::value));
CHECK_TRUE(traits::is_function);
CHECK_FALSE(traits::is_member_function);
CHECK_FALSE(traits::is_const);
CHECK_EQUAL(1, traits::argument_count);
}
};
}

18
test/vs2022/etl.vcxproj
View File

@ -3084,6 +3084,7 @@
<ClInclude Include="..\..\include\etl\crc8_rohc.h" />
<ClInclude Include="..\..\include\etl\crc8_wcdma.h" />
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