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/*
* Copyright 2014 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef FRUIT_META_WRAPPERS_H
#define FRUIT_META_WRAPPERS_H
#include <fruit/impl/fruit-config.h>
#include <memory>
namespace fruit {
namespace impl {
namespace meta {
struct ConsSignature {
template <typename ReturnType, typename... Args>
struct apply;
template <typename ReturnType, typename... Args>
struct apply<Type<ReturnType>, Type<Args>...> {
using type = Type<ReturnType(Args...)>;
};
};
struct ConsStdFunction {
template <typename Signature>
struct apply;
template <typename Signature>
struct apply<Type<Signature>> {
using type = Type<std::function<Signature>>;
};
};
struct ConsUniquePtr {
template <typename T>
struct apply;
template <typename T>
struct apply<Type<T>> {
using type = Type<std::unique_ptr<T>>;
};
};
struct RemoveUniquePtr {
template <typename T>
struct apply {
using type = T;
};
template <typename T>
struct apply<Type<std::unique_ptr<T>>> {
using type = Type<T>;
};
};
struct RemovePointer {
template <typename T>
struct apply {
using type = T;
};
template <typename T>
struct apply<Type<T*>> {
using type = Type<T>;
};
};
struct ConsReference {
template <typename T>
struct apply;
template <typename T>
struct apply<Type<T>> {
using type = Type<T&>;
};
};
struct ConsConstReference {
template <typename T>
struct apply;
template <typename T>
struct apply<Type<T>> {
using type = Type<const T&>;
};
};
struct IsEmpty {
template <typename T>
struct apply;
template <typename T>
struct apply<Type<T>> {
using type = Bool<std::is_empty<T>::value>;
};
};
struct IsTriviallyCopyable {
template <typename T>
struct apply;
template <typename T>
struct apply<Type<T>> {
using type = Bool<FRUIT_IS_TRIVIALLY_COPYABLE(T)>;
};
};
struct IsPointer {
template <typename T>
struct apply;
template <typename T>
struct apply<Type<T>> {
using type = Bool<std::is_pointer<T>::value>;
};
};
struct IsUniquePtr {
template <typename T>
struct apply {
using type = Bool<false>;
};
template <typename T>
struct apply<Type<std::unique_ptr<T>>> {
using type = Bool<true>;
};
};
struct IsAbstract {
template <typename T>
struct apply;
template <typename T>
struct apply<Type<T>> {
using type = Bool<std::is_abstract<T>::value>;
};
};
struct IsBaseOf {
template <typename I, typename C>
struct apply;
template <typename I, typename C>
struct apply<Type<I>, Type<C>> {
using type = Bool<std::is_base_of<I, C>::value>;
};
};
struct HasVirtualDestructor {
template <typename T>
struct apply;
template <typename T>
struct apply<Type<T>> {
using type = Bool<std::has_virtual_destructor<T>::value>;
};
};
} // namespace meta
} // namespace impl
} // namespace fruit
#endif // FRUIT_META_WRAPPERS_H