inspector/ScriptArguments.cpp

   1 /*
   2  * Copyright (C) 2014 Apple Inc. All rights reserved.
   3  * Copyright (c) 2010 Google Inc. All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met:
   8  *
   9  *     * Redistributions of source code must retain the above copyright
  10  * notice, this list of conditions and the following disclaimer.
  11  *     * Redistributions in binary form must reproduce the above
  12  * copyright notice, this list of conditions and the following disclaimer
  13  * in the documentation and/or other materials provided with the
  14  * distribution.
  15  *     * Neither the name of Google Inc. nor the names of its
  16  * contributors may be used to endorse or promote products derived from
  17  * this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include "config.h"
  33 #include "ScriptArguments.h"
  34
  35 #include "JSCInlines.h"
  36 #include "ScriptValue.h"
  37
  38 namespace Inspector {
  39
  40 PassRefPtr<ScriptArguments> ScriptArguments::create(JSC::ExecState* scriptState, Vector<Deprecated::ScriptValue>& arguments)
  41 {
  42     return adoptRef(new ScriptArguments(scriptState, arguments));
  43 }
  44
  45 ScriptArguments::ScriptArguments(JSC::ExecState* execState, Vector<Deprecated::ScriptValue>& arguments)
  46     : m_globalObject(execState->vm(), execState->lexicalGlobalObject())
  47 {
  48     m_arguments.swap(arguments);
  49 }
  50
  51 ScriptArguments::~ScriptArguments()
  52 {
  53 }
  54
  55 const Deprecated::ScriptValue &ScriptArguments::argumentAt(size_t index) const
  56 {
  57     ASSERT(m_arguments.size() > index);
  58     return m_arguments[index];
  59 }
  60
  61 JSC::ExecState* ScriptArguments::globalState() const
  62 {
  63     if (m_globalObject)
  64         return const_cast<JSC::JSGlobalObject*>(m_globalObject.get())->globalExec();
  65
  66     return nullptr;
  67 }
  68
  69 bool ScriptArguments::getFirstArgumentAsString(String& result, bool checkForNullOrUndefined)
  70 {
  71     if (!argumentCount())
  72         return false;
  73
  74     const Deprecated::ScriptValue& value = argumentAt(0);
  75     if (checkForNullOrUndefined && (value.isNull() || value.isUndefined()))
  76         return false;
  77
  78     if (!globalState()) {
  79         ASSERT_NOT_REACHED();
  80         return false;
  81     }
  82
  83     result = value.toString(globalState());
  84     return true;
  85 }
  86
  87 bool ScriptArguments::isEqual(ScriptArguments* other) const
  88 {
  89     if (!other)
  90         return false;
  91
  92     if (m_arguments.size() != other->m_arguments.size())
  93         return false;
  94     if (!globalState() && m_arguments.size())
  95         return false;
  96
  97     for (size_t i = 0; i < m_arguments.size(); ++i) {
  98         if (!m_arguments[i].isEqual(other->globalState(), other->m_arguments[i]))
  99             return false;
 100     }
 101
 102     return true;
 103 }
 104
 105 } // namespace Inspector