/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * vim: set ts=8 sts=2 et sw=2 tw=80:
 * 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/. */

#ifndef vm_ArrayBufferObject_inl_h
#define vm_ArrayBufferObject_inl_h

// Utilities and common inline code for ArrayBufferObject and
// SharedArrayBufferObject.

#include "vm/ArrayBufferObject.h"

#include "js/Value.h"

#include "vm/SharedArrayObject.h"
#include "vm/SharedMem.h"

namespace js {

inline SharedMem<uint8_t*> ArrayBufferObjectMaybeShared::dataPointerEither() {
  ArrayBufferObjectMaybeShared* buf = this;
  if (buf->is<ArrayBufferObject>()) {
    return buf->as<ArrayBufferObject>().dataPointerShared();
  }
  return buf->as<SharedArrayBufferObject>().dataPointerShared();
}

inline bool ArrayBufferObjectMaybeShared::isDetached() const {
  if (this->is<ArrayBufferObject>()) {
    return this->as<ArrayBufferObject>().isDetached();
  }
  return false;
}

inline uint32_t AnyArrayBufferByteLength(
    const ArrayBufferObjectMaybeShared* buf) {
  if (buf->is<ArrayBufferObject>()) {
    return buf->as<ArrayBufferObject>().byteLength();
  }
  return buf->as<SharedArrayBufferObject>().byteLength();
}

inline uint32_t ArrayBufferObjectMaybeShared::byteLength() const {
  return AnyArrayBufferByteLength(this);
}

inline bool AnyArrayBufferIsPreparedForAsmJS(
    const ArrayBufferObjectMaybeShared* buf) {
  if (buf->is<ArrayBufferObject>()) {
    return buf->as<ArrayBufferObject>().isPreparedForAsmJS();
  }
  return buf->as<SharedArrayBufferObject>().isPreparedForAsmJS();
}

inline bool ArrayBufferObjectMaybeShared::isPreparedForAsmJS() const {
  return AnyArrayBufferIsPreparedForAsmJS(this);
}

inline bool AnyArrayBufferIsWasm(const ArrayBufferObjectMaybeShared* buf) {
  if (buf->is<ArrayBufferObject>()) {
    return buf->as<ArrayBufferObject>().isWasm();
  }
  return buf->as<SharedArrayBufferObject>().isWasm();
}

inline bool ArrayBufferObjectMaybeShared::isWasm() const {
  return AnyArrayBufferIsWasm(this);
}

inline ArrayBufferObjectMaybeShared& AsAnyArrayBuffer(HandleValue val) {
  if (val.toObject().is<ArrayBufferObject>()) {
    return val.toObject().as<ArrayBufferObject>();
  }
  return val.toObject().as<SharedArrayBufferObject>();
}

}  // namespace js

#endif  // vm_ArrayBufferObject_inl_h
