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62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef SKY_ENGINE_TONIC_FLOAT64_LIST_H_
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#define SKY_ENGINE_TONIC_FLOAT64_LIST_H_
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#include "dart/runtime/include/dart_api.h"
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#include "sky/engine/tonic/dart_converter.h"
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namespace blink {
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// A simple wrapper around a Dart Float64List. It uses Dart_TypedDataAcquireData
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// to obtain a raw pointer to the data, which is released when this object is
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// destroyed.
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//
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// This is designed to be used with DartConverter only.
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class Float64List {
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public:
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explicit Float64List(Dart_Handle list);
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Float64List(Float64List&& other);
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Float64List();
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~Float64List();
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double& at(intptr_t i)
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{
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CHECK(i < num_elements_);
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return data_[i];
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}
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const double& at(intptr_t i) const
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{
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CHECK(i < num_elements_);
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return data_[i];
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}
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double& operator[](intptr_t i) { return at(i); }
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const double& operator[](intptr_t i) const { return at(i); }
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const double* data() const { return data_; }
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intptr_t num_elements() const { return num_elements_; }
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Dart_Handle dart_handle() const { return dart_handle_; }
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private:
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double* data_;
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intptr_t num_elements_;
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Dart_Handle dart_handle_;
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Float64List(const Float64List& other) = delete;
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};
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template <>
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struct DartConverter<Float64List> {
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static void SetReturnValue(Dart_NativeArguments args, Float64List val);
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static Float64List FromArguments(Dart_NativeArguments args,
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int index,
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Dart_Handle& exception);
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};
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} // namespace blink
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#endif // SKY_ENGINE_TONIC_FLOAT32_LIST_H_
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