text: /*
   * 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_COMPONENT_INSTALL_ARG_CHECKS_DEFN_H
  #define FRUIT_COMPONENT_INSTALL_ARG_CHECKS_DEFN_H
  
  #include <fruit/impl/component_install_arg_checks.h>
  
  #include <utility>
  #include <functional>
  
  namespace fruit {
  namespace impl {
  
  template <typename T>
  FRUIT_ALWAYS_INLINE inline int checkAcceptableComponentInstallArg() {
      // This lambda checks that the required operations on T exist.
      // Note that the lambda is never actually executed.
      auto checkRequirements = [](const T& constRef, T value) {
          T x1(constRef);
          T x2(std::move(value));
          x1 = constRef;
          x2 = std::move(value);
          bool b = (constRef == constRef);
          std::size_t h = std::hash<T>()(constRef);
          (void)x1;
          (void)x2;
          (void)b;
          (void)h;
      };
      (void)checkRequirements;
      return 0;
  }
  
  } // namespace impl
  } // namespace fruit
  
  #endif // FRUIT_COMPONENT_INSTALL_ARG_CHECKS_DEFN_H
  