runtime/StrictEvalActivation.cpp

   1 /*
   2  * Copyright (C) 2010 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 "StrictEvalActivation.h"
  28
  29 #include "JSGlobalObject.h"
  30 #include "JSCInlines.h"
  31
  32 namespace JSC {
  33
  34 STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(StrictEvalActivation);
  35
  36 const ClassInfo StrictEvalActivation::s_info = { "Object", &Base::s_info, 0, CREATE_METHOD_TABLE(StrictEvalActivation) };
  37
  38 StrictEvalActivation::StrictEvalActivation(ExecState* exec, JSScope* currentScope)
  39     : Base(
  40         exec->vm(),
  41         exec->lexicalGlobalObject()->strictEvalActivationStructure(),
  42         currentScope
  43     )
  44 {
  45 }
  46
  47 bool StrictEvalActivation::deleteProperty(JSCell*, ExecState*, PropertyName)
  48 {
  49     return false;
  50 }
  51
  52 JSValue StrictEvalActivation::toThis(JSCell*, ExecState* exec, ECMAMode ecmaMode)
  53 {
  54     if (ecmaMode == StrictMode)
  55         return jsUndefined();
  56     return exec->globalThisValue();
  57 }
  58
  59 }