StencilObject.h - mozsearch

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/* -*- 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_StencilObject_h

#define vm_StencilObject_h

#include "mozilla/RefPtr.h"  // RefPtr

#include <stddef.h>  // size_t

#include <stdint.h>  // uint8_t

#include "js/Class.h"                   // JSClassOps, JSClass

#include "js/experimental/JSStencil.h"  // JS::Stencil

#include "js/TypeDecls.h"

#include "vm/NativeObject.h"  // NativeObject

class JSObject;

namespace js {

// Object that holds JS::Stencil.

//

// This is a testing-only feature which can only be produced by testing

// functions.

class StencilObject : public NativeObject {

  static constexpr size_t StencilSlot = 0;

  static constexpr size_t ReservedSlots = 1;

 public:

  static const JSClassOps classOps_;

  static const JSClass class_;

  bool hasStencil() const;

  JS::Stencil* stencil() const;

  static StencilObject* create(JSContext* cx, RefPtr<JS::Stencil> stencil);

  static void finalize(JS::GCContext* gcx, JSObject* obj);

};

// Object that holds Stencil XDR buffer.

//

// This is a testing-only feature which can only be produced by testing

// functions.

class StencilXDRBufferObject : public NativeObject {

  static constexpr size_t BufferSlot = 0;

  static constexpr size_t LengthSlot = 1;

  static constexpr size_t ReservedSlots = 2;

 public:

  static const JSClassOps classOps_;

  static const JSClass class_;

  bool hasBuffer() const;

  const uint8_t* buffer() const;

  size_t bufferLength() const;

 private:

  uint8_t* writableBuffer();

 public:

  static StencilXDRBufferObject* create(JSContext* cx, uint8_t* buffer,

                                        size_t length);

  static void finalize(JS::GCContext* gcx, JSObject* obj);

};

} /* namespace js */

#endif /* vm_StencilObject_h */