| // Copyright 2018 The Chromium 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 MOJO_PUBLIC_CPP_BINDINGS_ARRAY_TRAITS_WEB_VECTOR_H_ |
| #define MOJO_PUBLIC_CPP_BINDINGS_ARRAY_TRAITS_WEB_VECTOR_H_ |
| |
| #include "mojo/public/cpp/bindings/array_traits.h" |
| #include "third_party/blink/public/platform/web_vector.h" |
| |
| namespace mojo { |
| |
| template <typename U> |
| struct ArrayTraits<blink::WebVector<U>> { |
| using Element = U; |
| |
| static bool IsNull(const blink::WebVector<U>& input) { |
| // blink::WebVector<> is always converted to non-null mojom array. |
| return false; |
| } |
| |
| static void SetToNull(blink::WebVector<U>* output) { |
| // blink::WebVector<> doesn't support null state. Set it to empty instead. |
| output->Clear(); |
| } |
| |
| static size_t GetSize(const blink::WebVector<U>& input) { |
| return input.size(); |
| } |
| |
| static U* GetData(blink::WebVector<U>& input) { return input.Data(); } |
| |
| static const U* GetData(const blink::WebVector<U>& input) { |
| return input.Data(); |
| } |
| |
| static U& GetAt(blink::WebVector<U>& input, size_t index) { |
| return input[index]; |
| } |
| |
| static const U& GetAt(const blink::WebVector<U>& input, size_t index) { |
| return input[index]; |
| } |
| |
| static bool Resize(blink::WebVector<U>& input, size_t size) { |
| // WebVector DCHECKs if the new size is larger than capacity(). Call |
| // reserve() first to be safe. |
| input.reserve(size); |
| input.resize(size); |
| return true; |
| } |
| }; |
| |
| } // namespace mojo |
| |
| #endif // MOJO_PUBLIC_CPP_BINDINGS_ARRAY_TRAITS_WEB_VECTOR_H_ |