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 3 // found in the LICENSE file. 4 5 #ifndef MOJO_PUBLIC_CPP_BINDINGS_ARRAY_TRAITS_CARRAY_H_ 6 #define MOJO_PUBLIC_CPP_BINDINGS_ARRAY_TRAITS_CARRAY_H_ 7 8 #include "mojo/public/cpp/bindings/array_traits.h" 9 10 namespace mojo { 11 12 template <typename T> 13 struct CArray { 14 CArray() : size(0), max_size(0), data(nullptr) {} 15 CArray(size_t size, size_t max_size, T* data) 16 : size(size), max_size(max_size), data(data) {} 17 size_t size; 18 const size_t max_size; 19 T* data; 20 }; 21 22 template <typename T> 23 struct ArrayTraits<CArray<T>> { 24 using Element = T; 25 26 static bool IsNull(const CArray<T>& input) { return !input.data; } 27 28 static void SetToNull(CArray<T>* output) { output->data = nullptr; } 29 30 static size_t GetSize(const CArray<T>& input) { return input.size; } 31 32 static T* GetData(CArray<T>& input) { return input.data; } 33 34 static const T* GetData(const CArray<T>& input) { return input.data; } 35 36 static T& GetAt(CArray<T>& input, size_t index) { return input.data[index]; } 37 38 static const T& GetAt(const CArray<T>& input, size_t index) { 39 return input.data[index]; 40 } 41 42 static bool Resize(CArray<T>& input, size_t size) { 43 if (size > input.max_size) 44 return false; 45 46 input.size = size; 47 return true; 48 } 49 }; 50 51 } // namespace mojo 52 53 #endif // MOJO_PUBLIC_CPP_BINDINGS_ARRAY_TRAITS_CARRAY_H_ 54
