/*

 * Copyright (c) Meta Platforms, Inc. and affiliates.

 *

 * This source code is licensed under the MIT license found in the

 * LICENSE file in the root directory of this source tree.

 */

#include "hermes/VM/JSDataView.h"

#include "hermes/VM/BuildMetadata.h"

#include "hermes/VM/Runtime-inline.h"

namespace hermes {

namespace vm {

const ObjectVTable JSDataView::vt{

    VTable(CellKind::JSDataViewKind, cellSize<JSDataView>()),

    JSDataView::_getOwnIndexedRangeImpl,

    JSDataView::_haveOwnIndexedImpl,

    JSDataView::_getOwnIndexedPropertyFlagsImpl,

    JSDataView::_getOwnIndexedImpl,

    JSDataView::_setOwnIndexedImpl,

    JSDataView::_deleteOwnIndexedImpl,

    JSDataView::_checkAllOwnIndexedImpl,

};

void JSDataViewBuildMeta(const GCCell *cell, Metadata::Builder &mb) {

  mb.addJSObjectOverlapSlots(JSObject::numOverlapSlots<JSDataView>());

  JSObjectBuildMeta(cell, mb);

  const auto *self = static_cast<const JSDataView *>(cell);

  mb.setVTable(&JSDataView::vt);

  mb.addField("buffer", &self->buffer_);

}

PseudoHandle<JSDataView> JSDataView::create(

    Runtime &runtime,

    Handle<JSObject> prototype) {

  auto *cell = runtime.makeAFixed<JSDataView>(

      runtime,

      prototype,

      runtime.getHiddenClassForPrototype(

          *prototype, numOverlapSlots<JSDataView>()));

  return JSObjectInit::initToPseudoHandle(runtime, cell);

}

JSDataView::JSDataView(

    Runtime &runtime,

    Handle<JSObject> parent,

    Handle<HiddenClass> clazz)

    : JSObject(runtime, *parent, *clazz),

      buffer_(nullptr),

      offset_(0),

      length_(0) {}

} // namespace vm

} // namespace hermes