runtime/JSWeakMap.cpp

   1 /*
   2  * Copyright (C) 2013 Apple, Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "JSWeakMap.h"
  28
  29 #include "JSCJSValueInlines.h"
  30 #include "SlotVisitorInlines.h"
  31 #include "StructureInlines.h"
  32 #include "WeakMapData.h"
  33 #include "WriteBarrierInlines.h"
  34
  35 namespace JSC {
  36
  37 const ClassInfo JSWeakMap::s_info = { "WeakMap", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(JSWeakMap) };
  38
  39 void JSWeakMap::finishCreation(VM& vm)
  40 {
  41     Base::finishCreation(vm);
  42     m_weakMapData.set(vm, this, WeakMapData::create(vm));
  43 }
  44
  45 void JSWeakMap::visitChildren(JSCell* cell, SlotVisitor& visitor)
  46 {
  47     Base::visitChildren(cell, visitor);
  48     JSWeakMap* thisObj = jsCast<JSWeakMap*>(cell);
  49     visitor.append(&thisObj->m_weakMapData);
  50 }
  51
  52 }