WebCore/inspector/JavaScriptCallFrame.cpp

   1 /*
   2  * Copyright (C) 2008 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 "JavaScriptCallFrame.h"
  28 #include "JSDOMBinding.h"
  29
  30 #if ENABLE(JAVASCRIPT_DEBUGGER)
  31
  32 #include "PlatformString.h"
  33 #include <debugger/DebuggerCallFrame.h>
  34 #include <runtime/JSGlobalObject.h>
  35 #include <runtime/Completion.h>
  36 #include <runtime/JSLock.h>
  37 #include <runtime/JSObject.h>
  38 #include <runtime/JSValue.h>
  39
  40 using namespace JSC;
  41
  42 namespace WebCore {
  43
  44 JavaScriptCallFrame::JavaScriptCallFrame(const DebuggerCallFrame& debuggerCallFrame, PassRefPtr<JavaScriptCallFrame> caller, intptr_t sourceID, int line)
  45     : m_debuggerCallFrame(debuggerCallFrame)
  46     , m_caller(caller)
  47     , m_sourceID(sourceID)
  48     , m_line(line)
  49     , m_isValid(true)
  50 {
  51 }
  52
  53 JavaScriptCallFrame* JavaScriptCallFrame::caller()
  54 {
  55     return m_caller.get();
  56 }
  57
  58 const JSC::ScopeChainNode* JavaScriptCallFrame::scopeChain() const
  59 {
  60     ASSERT(m_isValid);
  61     if (!m_isValid)
  62         return 0;
  63     return m_debuggerCallFrame.scopeChain();
  64 }
  65
  66 JSC::JSGlobalObject* JavaScriptCallFrame::dynamicGlobalObject() const
  67 {
  68     ASSERT(m_isValid);
  69     if (!m_isValid)
  70         return 0;
  71     return m_debuggerCallFrame.dynamicGlobalObject();
  72 }
  73
  74 String JavaScriptCallFrame::functionName() const
  75 {
  76     ASSERT(m_isValid);
  77     if (!m_isValid)
  78         return String();
  79     UString functionName = m_debuggerCallFrame.calculatedFunctionName();
  80     if (functionName.isEmpty())
  81         return String();
  82     return functionName;
  83 }
  84
  85 DebuggerCallFrame::Type JavaScriptCallFrame::type() const
  86 {
  87     ASSERT(m_isValid);
  88     if (!m_isValid)
  89         return DebuggerCallFrame::ProgramType;
  90     return m_debuggerCallFrame.type();
  91 }
  92
  93 JSObject* JavaScriptCallFrame::thisObject() const
  94 {
  95     ASSERT(m_isValid);
  96     if (!m_isValid)
  97         return 0;
  98     return m_debuggerCallFrame.thisObject();
  99 }
 100
 101 // Evaluate some JavaScript code in the scope of this frame.
 102 JSValue JavaScriptCallFrame::evaluate(const UString& script, JSValue& exception) const
 103 {
 104     ASSERT(m_isValid);
 105     if (!m_isValid)
 106         return jsNull();
 107
 108     JSLock lock(SilenceAssertionsOnly);
 109     return m_debuggerCallFrame.evaluate(script, exception);
 110 }
 111
 112 } // namespace WebCore
 113
 114 #endif // ENABLE(JAVASCRIPT_DEBUGGER)