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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef MOJO_PUBLIC_CPP_BINDINGS_ARRAY_TRAITS_H_ | 5 #ifndef MOJO_PUBLIC_CPP_BINDINGS_ARRAY_TRAITS_H_ |
6 #define MOJO_PUBLIC_CPP_BINDINGS_ARRAY_TRAITS_H_ | 6 #define MOJO_PUBLIC_CPP_BINDINGS_ARRAY_TRAITS_H_ |
7 | 7 |
8 namespace mojo { | 8 namespace mojo { |
9 | 9 |
10 // This must be specialized for any UserType to be serialized/deserialized as | 10 // This must be specialized for any type |T| to be serialized/deserialized as |
11 // a mojom array. | 11 // a mojom array. |
12 // | 12 // |
13 // TODO(yzshen): This is work in progress. Add better documentation once the | 13 // Usually you would like to do a partial specialization for an array/vector |
14 // interface becomes more stable. | 14 // template. Imagine you want to specialize it for CustomArray<>, you need to |
15 template <typename UserType> | 15 // implement: |
| 16 // |
| 17 // template <typename T> |
| 18 // struct ArrayTraits<CustomArray<T>> { |
| 19 // using Element = T; |
| 20 // |
| 21 // // These two methods are optional. Please see comments in struct_traits.h |
| 22 // static bool IsNull(const CustomArray<T>& input); |
| 23 // static void SetToNull(CustomArray<T>* output); |
| 24 // |
| 25 // static size_t GetSize(const CustomArray<T>& input); |
| 26 // |
| 27 // static T* GetData(CustomArray<T>& input); |
| 28 // static const T* GetData(const CustomArray<T>& input); |
| 29 // |
| 30 // static T& GetAt(CustomArray<T>& input, size_t index); |
| 31 // static const T& GetAt(const CustomArray<T>& input, size_t index); |
| 32 // |
| 33 // static void Resize(CustomArray<T>& input, size_t size); |
| 34 // }; |
| 35 // |
| 36 template <typename T> |
16 struct ArrayTraits; | 37 struct ArrayTraits; |
17 | 38 |
18 } // namespace mojo | 39 } // namespace mojo |
19 | 40 |
20 #endif // MOJO_PUBLIC_CPP_BINDINGS_ARRAY_TRAITS_H_ | 41 #endif // MOJO_PUBLIC_CPP_BINDINGS_ARRAY_TRAITS_H_ |
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