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// Copyright 2016 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_TONIC_TYPED_DATA_INT32_LIST_H_
#define LIB_TONIC_TYPED_DATA_INT32_LIST_H_
#include "third_party/dart/runtime/include/dart_api.h"
#include "tonic/converter/dart_converter.h"
namespace tonic {
// A simple wrapper around a Dart Int32List. It uses Dart_TypedDataAcquireData
// to obtain a raw pointer to the data, which is released when this object is
// destroyed.
//
// This is designed to be used with DartConverter only.
class Int32List {
public:
explicit Int32List(Dart_Handle list);
Int32List(Int32List&& other);
Int32List();
~Int32List();
int32_t& at(intptr_t i) {
TONIC_CHECK(i < num_elements_);
return data_[i];
}
const int32_t& at(intptr_t i) const {
TONIC_CHECK(i < num_elements_);
return data_[i];
}
int32_t& operator[](intptr_t i) { return at(i); }
const int32_t& operator[](intptr_t i) const { return at(i); }
const int32_t* data() const { return data_; }
intptr_t num_elements() const { return num_elements_; }
Dart_Handle dart_handle() const { return dart_handle_; }
void Release();
private:
int32_t* data_;
intptr_t num_elements_;
Dart_Handle dart_handle_;
Int32List(const Int32List& other) = delete;
};
template <>
struct DartConverter<Int32List> {
static void SetReturnValue(Dart_NativeArguments args, Int32List val);
static Int32List FromArguments(Dart_NativeArguments args,
int index,
Dart_Handle& exception);
};
} // namespace tonic
#endif // LIB_TONIC_TYPED_DATA_INT32_LIST_H_