| // Copyright 2022 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef LIB_COMPONENT_OUTGOING_CPP_STRUCTURED_CONFIG_H_ |
| #define LIB_COMPONENT_OUTGOING_CPP_STRUCTURED_CONFIG_H_ |
| |
| #include <type_traits> |
| |
| // These traits can be used to ensure that a given template argument |
| // is a structured config type. |
| namespace component { |
| |
| // This is for regular elf components where the config comes from startup handles. |
| template <typename T, typename = void> |
| struct IsStructuredConfig : public ::std::false_type {}; |
| template <typename T> |
| struct IsStructuredConfig<T, std::void_t<decltype(T::kIsStructuredConfig)>> |
| : public std::true_type {}; |
| |
| template <typename T> |
| constexpr inline auto IsStructuredConfigV = IsStructuredConfig<T>::value; |
| |
| } // namespace component |
| |
| #endif // LIB_COMPONENT_OUTGOING_CPP_STRUCTURED_CONFIG_H_ |
