1  /*
  2   * Copyright (C) 2011-2012, 2016-2017 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. AND ITS CONTRIBUTORS ``AS IS''
 14   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 15   * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 16   * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 17   * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 18   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 19   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 20   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 21   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 22   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 23   * THE POSSIBILITY OF SUCH DAMAGE.
 24   */
 25  
 26  #include "config.h"
 27  #include "JSProxy.h"
 28  
 29  #include "JSGlobalObject.h"
 30  #include "StructureInlines.h"
 31  
 32  namespace JSC {
 33  
 34  STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(JSProxy);
 35  
 36  const ClassInfo JSProxy::s_info = { "JSProxy", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSProxy) };
 37  
 38  void JSProxy::visitChildren(JSCell* cell, SlotVisitor& visitor)
 39  {
 40      JSProxy* thisObject = jsCast<JSProxy*>(cell);
 41      ASSERT_GC_OBJECT_INHERITS(thisObject, info());
 42      Base::visitChildren(thisObject, visitor);
 43      visitor.append(thisObject->m_target);
 44  }
 45  
 46  void JSProxy::setTarget(VM& vm, JSGlobalObject* globalObject)
 47  {
 48      m_target.set(vm, this, globalObject);
 49      setPrototypeDirect(vm, globalObject->getPrototypeDirect(vm));
 50  }
 51  
 52  String JSProxy::className(const JSObject* object, VM& vm)
 53  {
 54      const JSProxy* thisObject = jsCast<const JSProxy*>(object);
 55      return thisObject->target()->methodTable(vm)->className(thisObject->target(), vm);
 56  }
 57  
 58  String JSProxy::toStringName(const JSObject* object, JSGlobalObject* globalObject)
 59  {
 60      const JSProxy* thisObject = jsCast<const JSProxy*>(object);
 61      return thisObject->target()->methodTable(globalObject->vm())->toStringName(thisObject->target(), globalObject);
 62  }
 63  
 64  bool JSProxy::getOwnPropertySlot(JSObject* object, JSGlobalObject* globalObject, PropertyName propertyName, PropertySlot& slot)
 65  {
 66      JSProxy* thisObject = jsCast<JSProxy*>(object);
 67      return thisObject->target()->methodTable(globalObject->vm())->getOwnPropertySlot(thisObject->target(), globalObject, propertyName, slot);
 68  }
 69  
 70  bool JSProxy::getOwnPropertySlotByIndex(JSObject* object, JSGlobalObject* globalObject, unsigned propertyName, PropertySlot& slot)
 71  {
 72      JSProxy* thisObject = jsCast<JSProxy*>(object);
 73      return thisObject->target()->methodTable(globalObject->vm())->getOwnPropertySlotByIndex(thisObject->target(), globalObject, propertyName, slot);
 74  }
 75  
 76  bool JSProxy::put(JSCell* cell, JSGlobalObject* globalObject, PropertyName propertyName, JSValue value, PutPropertySlot& slot)
 77  {
 78      JSProxy* thisObject = jsCast<JSProxy*>(cell);
 79      return thisObject->target()->methodTable(globalObject->vm())->put(thisObject->target(), globalObject, propertyName, value, slot);
 80  }
 81  
 82  bool JSProxy::putByIndex(JSCell* cell, JSGlobalObject* globalObject, unsigned propertyName, JSValue value, bool shouldThrow)
 83  {
 84      JSProxy* thisObject = jsCast<JSProxy*>(cell);
 85      return thisObject->target()->methodTable(globalObject->vm())->putByIndex(thisObject->target(), globalObject, propertyName, value, shouldThrow);
 86  }
 87  
 88  bool JSProxy::defineOwnProperty(JSObject* object, JSGlobalObject* globalObject, PropertyName propertyName, const PropertyDescriptor& descriptor, bool shouldThrow)
 89  {
 90      JSProxy* thisObject = jsCast<JSProxy*>(object);
 91      return thisObject->target()->methodTable(globalObject->vm())->defineOwnProperty(thisObject->target(), globalObject, propertyName, descriptor, shouldThrow);
 92  }
 93  
 94  bool JSProxy::deleteProperty(JSCell* cell, JSGlobalObject* globalObject, PropertyName propertyName, DeletePropertySlot& slot)
 95  {
 96      JSProxy* thisObject = jsCast<JSProxy*>(cell);
 97      return thisObject->target()->methodTable(globalObject->vm())->deleteProperty(thisObject->target(), globalObject, propertyName, slot);
 98  }
 99  
100  bool JSProxy::isExtensible(JSObject* object, JSGlobalObject* globalObject)
101  {
102      JSProxy* thisObject = jsCast<JSProxy*>(object);
103      return thisObject->target()->methodTable(globalObject->vm())->isExtensible(thisObject->target(), globalObject);
104  }
105  
106  bool JSProxy::preventExtensions(JSObject* object, JSGlobalObject* globalObject)
107  {
108      JSProxy* thisObject = jsCast<JSProxy*>(object);
109      return thisObject->target()->methodTable(globalObject->vm())->preventExtensions(thisObject->target(), globalObject);
110  }
111  
112  bool JSProxy::deletePropertyByIndex(JSCell* cell, JSGlobalObject* globalObject, unsigned propertyName)
113  {
114      JSProxy* thisObject = jsCast<JSProxy*>(cell);
115      return thisObject->target()->methodTable(globalObject->vm())->deletePropertyByIndex(thisObject->target(), globalObject, propertyName);
116  }
117  
118  uint32_t JSProxy::getEnumerableLength(JSGlobalObject* globalObject, JSObject* object)
119  {
120      JSProxy* thisObject = jsCast<JSProxy*>(object);
121      return thisObject->target()->methodTable(globalObject->vm())->getEnumerableLength(globalObject, thisObject->target());
122  }
123  
124  void JSProxy::getOwnPropertyNames(JSObject* object, JSGlobalObject* globalObject, PropertyNameArray& propertyNames, DontEnumPropertiesMode mode)
125  {
126      JSProxy* thisObject = jsCast<JSProxy*>(object);
127      thisObject->target()->methodTable(globalObject->vm())->getOwnPropertyNames(thisObject->target(), globalObject, propertyNames, mode);
128  }
129  
130  bool JSProxy::setPrototype(JSObject* object, JSGlobalObject* globalObject, JSValue prototype, bool shouldThrowIfCantSet)
131  {
132      JSProxy* thisObject = jsCast<JSProxy*>(object);
133      return thisObject->target()->methodTable(globalObject->vm())->setPrototype(thisObject->target(), globalObject, prototype, shouldThrowIfCantSet);
134  }
135  
136  JSValue JSProxy::getPrototype(JSObject* object, JSGlobalObject* globalObject)
137  {
138      JSProxy* thisObject = jsCast<JSProxy*>(object);
139      return thisObject->target()->methodTable(globalObject->vm())->getPrototype(thisObject->target(), globalObject);
140  }
141  
142  } // namespace JSC