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58 lines
2.4 KiB
58 lines
2.4 KiB
/*
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* Copyright 2014 Google Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef FRUIT_COMPONENT_FUNCTION_DEFN_H
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#define FRUIT_COMPONENT_FUNCTION_DEFN_H
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#include <fruit/component_function.h>
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#include <fruit/impl/util/call_with_tuple.h>
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#include <fruit/impl/component_install_arg_checks.h>
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namespace fruit {
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template <typename ComponentType, typename... ComponentFunctionArgs>
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inline ComponentFunction<ComponentType, ComponentFunctionArgs...>::ComponentFunction(
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ComponentType (*getComponent)(ComponentFunctionArgs...), ComponentFunctionArgs... args)
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: getComponent(getComponent), args_tuple{args...} {
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using IntCollector = int[];
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(void)IntCollector{0, fruit::impl::checkAcceptableComponentInstallArg<ComponentFunctionArgs>()...};
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}
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template <typename ComponentType, typename... ComponentFunctionArgs>
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template <typename... ActualArgs>
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inline ComponentFunction<ComponentType, ComponentFunctionArgs...>
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ComponentFunction<ComponentType, ComponentFunctionArgs...>::create(
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ComponentType(*getComponent)(ComponentFunctionArgs...), ActualArgs&&... args) {
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return ComponentFunction<ComponentType, ComponentFunctionArgs...>(getComponent, std::forward<ActualArgs>(args)...);
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}
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template <typename ComponentType, typename... ComponentFunctionArgs>
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inline ComponentType ComponentFunction<ComponentType, ComponentFunctionArgs...>::operator()() {
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return fruit::impl::callWithTuple(getComponent, args_tuple);
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}
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template <typename... ComponentParams, typename... FormalArgs, typename... ActualArgs>
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inline ComponentFunction<fruit::Component<ComponentParams...>, FormalArgs...> componentFunction(
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fruit::Component<ComponentParams...> (*getComponent)(FormalArgs...),
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ActualArgs&&... args) {
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return ComponentFunction<fruit::Component<ComponentParams...>, FormalArgs...>::create(
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getComponent, std::forward<ActualArgs>(args)...);
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}
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}
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#endif // FRUIT_COMPONENT_FUNCTION_DEFN_H
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