| /* |
| * 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_BINDING_DEPS_DEFN_H |
| #define FRUIT_BINDING_DEPS_DEFN_H |
| |
| #include <fruit/impl/component_storage/binding_deps.h> |
| |
| namespace fruit { |
| namespace impl { |
| |
| template <typename L> |
| struct GetBindingDepsHelper; |
| |
| template <typename... Ts> |
| struct GetBindingDepsHelper<fruit::impl::meta::Vector<fruit::impl::meta::Type<Ts>...>> { |
| inline const BindingDeps* operator()() { |
| static const TypeId types[] = {getTypeId<Ts>()..., TypeId{nullptr}}; // LCOV_EXCL_BR_LINE |
| static const BindingDeps deps = {types, sizeof...(Ts)}; |
| return &deps; |
| } |
| }; |
| |
| // We specialize the "no Ts" case to avoid declaring types[] as an array of length 0. |
| template <> |
| struct GetBindingDepsHelper<fruit::impl::meta::Vector<>> { |
| inline const BindingDeps* operator()() { |
| static const TypeId types[] = {TypeId{nullptr}}; |
| static const BindingDeps deps = {types, 0}; |
| return &deps; |
| } |
| }; |
| |
| template <typename Deps> |
| inline const BindingDeps* getBindingDeps() { |
| return GetBindingDepsHelper<Deps>()(); |
| } |
| |
| } // namespace impl |
| } // namespace fruit |
| |
| #endif // FRUIT_BINDING_DEPS_DEFN_H |