/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "Buffer.h"

#include "Device.h"
#include "mozilla/dom/WebGPUBinding.h"

namespace mozilla {
namespace webgpu {

Buffer::Buffer(Device* const parent) : ChildOf(parent) {
  mozilla::HoldJSObjects(this);  // Mimed from PushSubscriptionOptions
}

Buffer::~Buffer() {
  mMapping = nullptr;
  mozilla::DropJSObjects(this);
}

void Buffer::GetMapping(JSContext*, JS::MutableHandle<JSObject*> out) const {
  out.set(mMapping);
}

void Buffer::Unmap() const { MOZ_CRASH("todo"); }

JSObject* webgpu::Buffer::WrapObject(JSContext* cx,
                                     JS::Handle<JSObject*> givenProto) {
  return dom::WebGPUBuffer_Binding::Wrap(cx, this, givenProto);
}

NS_IMPL_CYCLE_COLLECTION_CLASS(Buffer)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(Buffer)
  NS_IMPL_CYCLE_COLLECTION_UNLINK(mParent)
  NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
  tmp->mMapping = nullptr;
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(Buffer)
  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mParent)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(Buffer)
  NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
  NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mMapping)
NS_IMPL_CYCLE_COLLECTION_TRACE_END

NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(Buffer, AddRef)
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(Buffer, Release)

}  // namespace webgpu
}  // namespace mozilla