ShapeList.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 jit_ShapeList_h

#define jit_ShapeList_h

#include <stddef.h>

#include <stdint.h>

#include "jstypes.h"

#include "js/Class.h"

#include "vm/List.h"

namespace js::jit {

// Special object used for storing a list of shapes to guard against. These are

// only used in the fields of CacheIR stubs and do not escape.

class ShapeListObject : public ListObject {

 public:

  static const JSClass class_;

  static const JSClassOps classOps_;

  static constexpr size_t MaxLength = 16;

  static ShapeListObject* create(JSContext* cx);

  static void trace(JSTracer* trc, JSObject* obj);

  Shape* get(uint32_t index) const;

  Shape* getUnbarriered(uint32_t index) const;

  bool traceWeak(JSTracer* trc);

};

}  // namespace js::jit

#endif  // jit_ShapeList_h