| // Copyright 2018 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_FXL_TYPE_CONVERTER_H_ |
| #define LIB_FXL_TYPE_CONVERTER_H_ |
| |
| namespace fxl { |
| |
| // Specialize the following class: |
| // template <typename T, typename U> struct TypeConverter; |
| // to perform desired type conversions. Here, T is the target type; U is the |
| // input type. |
| // |
| // To convert from type Y to type X, create a specialization of TypeConverter |
| // like this: |
| // |
| // namespace fxl { |
| // |
| // template <> |
| // struct TypeConverter<X, Y> { |
| // static X Convert(const Y& input); |
| // }; |
| // |
| // } // namespace fxl |
| // |
| // With this specialization, it's possible to write code like this: |
| // |
| // Y y; |
| // X x = fxl::To<X>(y); |
| // |
| |
| template <typename T, typename U> |
| struct TypeConverter; |
| |
| template <typename T, typename U> |
| inline T To(const U& obj) { |
| return TypeConverter<T, U>::Convert(obj); |
| }; |
| |
| } // namespace fxl |
| |
| #endif // LIB_FXL_TYPE_CONVERTER_H_ |
