Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

6 files changed, 527 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/debugger/Debugger.cpp b/Source/JavaScriptCore/debugger/Debugger.cpp
new file mode 100644
index 0000000..6b24c5a
--- /dev/null
+++ b/Source/JavaScriptCore/debugger/Debugger.cpp
@@ -0,0 +1,119 @@
+/*
+ *  Copyright (C) 2008 Apple Inc. All rights reserved.
+ *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2001 Peter Kelly (pmk@post.com)
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include "config.h"
+#include "Debugger.h"
+
+#include "CollectorHeapIterator.h"
+#include "Error.h"
+#include "Interpreter.h"
+#include "JSFunction.h"
+#include "JSGlobalObject.h"
+#include "Parser.h"
+#include "Protect.h"
+
+namespace JSC {
+
+Debugger::~Debugger()
+{
+    HashSet<JSGlobalObject*>::iterator end = m_globalObjects.end();
+    for (HashSet<JSGlobalObject*>::iterator it = m_globalObjects.begin(); it != end; ++it)
+        (*it)->setDebugger(0);
+}
+
+void Debugger::attach(JSGlobalObject* globalObject)
+{
+    ASSERT(!globalObject->debugger());
+    globalObject->setDebugger(this);
+    m_globalObjects.add(globalObject);
+}
+
+void Debugger::detach(JSGlobalObject* globalObject)
+{
+    ASSERT(m_globalObjects.contains(globalObject));
+    m_globalObjects.remove(globalObject);
+    globalObject->setDebugger(0);
+}
+
+void Debugger::recompileAllJSFunctions(JSGlobalData* globalData)
+{
+    // If JavaScript is running, it's not safe to recompile, since we'll end
+    // up throwing away code that is live on the stack.
+    ASSERT(!globalData->dynamicGlobalObject);
+    if (globalData->dynamicGlobalObject)
+        return;
+
+    typedef HashSet<FunctionExecutable*> FunctionExecutableSet;
+    typedef HashMap<SourceProvider*, ExecState*> SourceProviderMap;
+
+    FunctionExecutableSet functionExecutables;
+    SourceProviderMap sourceProviders;
+
+    LiveObjectIterator it = globalData->heap.primaryHeapBegin();
+    LiveObjectIterator heapEnd = globalData->heap.primaryHeapEnd();
+    for ( ; it != heapEnd; ++it) {
+        if (!(*it)->inherits(&JSFunction::info))
+            continue;
+
+        JSFunction* function = asFunction(*it);
+        if (function->executable()->isHostFunction())
+            continue;
+
+        FunctionExecutable* executable = function->jsExecutable();
+
+        // Check if the function is already in the set - if so,
+        // we've already retranslated it, nothing to do here.
+        if (!functionExecutables.add(executable).second)
+            continue;
+
+        ExecState* exec = function->scope().globalObject()->JSGlobalObject::globalExec();
+        executable->discardCode();
+        if (function->scope().globalObject()->debugger() == this)
+            sourceProviders.add(executable->source().provider(), exec);
+    }
+
+    // Call sourceParsed() after reparsing all functions because it will execute
+    // JavaScript in the inspector.
+    SourceProviderMap::const_iterator end = sourceProviders.end();
+    for (SourceProviderMap::const_iterator iter = sourceProviders.begin(); iter != end; ++iter)
+        sourceParsed(iter->second, SourceCode(iter->first), -1, UString());
+}
+
+JSValue evaluateInGlobalCallFrame(const UString& script, JSValue& exception, JSGlobalObject* globalObject)
+{
+    CallFrame* globalCallFrame = globalObject->globalExec();
+
+    RefPtr<EvalExecutable> eval = EvalExecutable::create(globalCallFrame, makeSource(script), false);
+    JSObject* error = eval->compile(globalCallFrame, globalCallFrame->scopeChain());
+    if (error)
+        return error;
+
+    JSGlobalData& globalData = globalObject->globalData();
+    JSValue result = globalData.interpreter->execute(eval.get(), globalCallFrame, globalObject, globalCallFrame->scopeChain());
+    if (globalData.exception) {
+        exception = globalData.exception;
+        globalData.exception = JSValue();
+    }
+    ASSERT(result);
+    return result;
+}
+
+} // namespace JSC
diff --git a/Source/JavaScriptCore/debugger/Debugger.h b/Source/JavaScriptCore/debugger/Debugger.h
new file mode 100644
index 0000000..3b9bec4
--- /dev/null
+++ b/Source/JavaScriptCore/debugger/Debugger.h
@@ -0,0 +1,65 @@
+/*
+ *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2001 Peter Kelly (pmk@post.com)
+ *  Copyright (C) 2008, 2009 Apple Inc. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef Debugger_h
+#define Debugger_h
+
+#include <wtf/HashSet.h>
+
+namespace JSC {
+
+    class DebuggerCallFrame;
+    class ExecState;
+    class JSGlobalData;
+    class JSGlobalObject;
+    class JSValue;
+    class SourceCode;
+    class UString;
+
+    class Debugger {
+    public:
+        virtual ~Debugger();
+
+        void attach(JSGlobalObject*);
+        virtual void detach(JSGlobalObject*);
+
+        virtual void sourceParsed(ExecState*, const SourceCode&, int errorLineNumber, const UString& errorMessage) = 0;
+        virtual void exception(const DebuggerCallFrame&, intptr_t sourceID, int lineNumber, bool hasHandler) = 0;
+        virtual void atStatement(const DebuggerCallFrame&, intptr_t sourceID, int lineNumber) = 0;
+        virtual void callEvent(const DebuggerCallFrame&, intptr_t sourceID, int lineNumber) = 0;
+        virtual void returnEvent(const DebuggerCallFrame&, intptr_t sourceID, int lineNumber) = 0;
+
+        virtual void willExecuteProgram(const DebuggerCallFrame&, intptr_t sourceID, int lineNumber) = 0;
+        virtual void didExecuteProgram(const DebuggerCallFrame&, intptr_t sourceID, int lineNumber) = 0;
+        virtual void didReachBreakpoint(const DebuggerCallFrame&, intptr_t sourceID, int lineNumber) = 0;
+
+        void recompileAllJSFunctions(JSGlobalData*);
+
+    private:
+        HashSet<JSGlobalObject*> m_globalObjects;
+    };
+
+    // This function exists only for backwards compatibility with existing WebScriptDebugger clients.
+    JSValue evaluateInGlobalCallFrame(const UString&, JSValue& exception, JSGlobalObject*);
+
+} // namespace JSC
+
+#endif // Debugger_h
diff --git a/Source/JavaScriptCore/debugger/DebuggerActivation.cpp b/Source/JavaScriptCore/debugger/DebuggerActivation.cpp
new file mode 100644
index 0000000..0444d23
--- /dev/null
+++ b/Source/JavaScriptCore/debugger/DebuggerActivation.cpp
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2008, 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "DebuggerActivation.h"
+
+#include "JSActivation.h"
+
+namespace JSC {
+
+DebuggerActivation::DebuggerActivation(JSObject* activation)
+    : JSObject(DebuggerActivation::createStructure(jsNull()))
+{
+    ASSERT(activation);
+    ASSERT(activation->isActivationObject());
+    m_activation = static_cast<JSActivation*>(activation);
+}
+
+void DebuggerActivation::markChildren(MarkStack& markStack)
+{
+    JSObject::markChildren(markStack);
+
+    if (m_activation)
+        markStack.append(m_activation);
+}
+
+UString DebuggerActivation::className() const
+{
+    return m_activation->className();
+}
+
+bool DebuggerActivation::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)
+{
+    return m_activation->getOwnPropertySlot(exec, propertyName, slot);
+}
+
+void DebuggerActivation::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)
+{
+    m_activation->put(exec, propertyName, value, slot);
+}
+
+void DebuggerActivation::putWithAttributes(ExecState* exec, const Identifier& propertyName, JSValue value, unsigned attributes)
+{
+    m_activation->putWithAttributes(exec, propertyName, value, attributes);
+}
+
+bool DebuggerActivation::deleteProperty(ExecState* exec, const Identifier& propertyName)
+{
+    return m_activation->deleteProperty(exec, propertyName);
+}
+
+void DebuggerActivation::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
+{
+    m_activation->getPropertyNames(exec, propertyNames, mode);
+}
+
+bool DebuggerActivation::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)
+{
+    return m_activation->getOwnPropertyDescriptor(exec, propertyName, descriptor);
+}
+
+void DebuggerActivation::defineGetter(ExecState* exec, const Identifier& propertyName, JSObject* getterFunction, unsigned attributes)
+{
+    m_activation->defineGetter(exec, propertyName, getterFunction, attributes);
+}
+
+void DebuggerActivation::defineSetter(ExecState* exec, const Identifier& propertyName, JSObject* setterFunction, unsigned attributes)
+{
+    m_activation->defineSetter(exec, propertyName, setterFunction, attributes);
+}
+
+JSValue DebuggerActivation::lookupGetter(ExecState* exec, const Identifier& propertyName)
+{
+    return m_activation->lookupGetter(exec, propertyName);
+}
+
+JSValue DebuggerActivation::lookupSetter(ExecState* exec, const Identifier& propertyName)
+{
+    return m_activation->lookupSetter(exec, propertyName);
+}
+
+} // namespace JSC
diff --git a/Source/JavaScriptCore/debugger/DebuggerActivation.h b/Source/JavaScriptCore/debugger/DebuggerActivation.h
new file mode 100644
index 0000000..3927017
--- /dev/null
+++ b/Source/JavaScriptCore/debugger/DebuggerActivation.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2008, 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef DebuggerActivation_h
+#define DebuggerActivation_h
+
+#include "JSObject.h"
+
+namespace JSC {
+
+    class JSActivation;
+
+    class DebuggerActivation : public JSObject {
+    public:
+        DebuggerActivation(JSObject*);
+
+        virtual void markChildren(MarkStack&);
+        virtual UString className() const;
+        virtual bool getOwnPropertySlot(ExecState*, const Identifier& propertyName, PropertySlot&);
+        virtual void put(ExecState*, const Identifier& propertyName, JSValue, PutPropertySlot&);
+        virtual void putWithAttributes(ExecState*, const Identifier& propertyName, JSValue, unsigned attributes);
+        virtual bool deleteProperty(ExecState*, const Identifier& propertyName);
+        virtual void getOwnPropertyNames(ExecState*, PropertyNameArray&, EnumerationMode mode = ExcludeDontEnumProperties);
+        virtual bool getOwnPropertyDescriptor(ExecState*, const Identifier&, PropertyDescriptor&);
+        virtual void defineGetter(ExecState*, const Identifier& propertyName, JSObject* getterFunction, unsigned attributes);
+        virtual void defineSetter(ExecState*, const Identifier& propertyName, JSObject* setterFunction, unsigned attributes);
+        virtual JSValue lookupGetter(ExecState*, const Identifier& propertyName);
+        virtual JSValue lookupSetter(ExecState*, const Identifier& propertyName);
+
+        static PassRefPtr<Structure> createStructure(JSValue prototype) 
+        {
+            return Structure::create(prototype, TypeInfo(ObjectType, StructureFlags), AnonymousSlotCount); 
+        }
+
+    protected:
+        static const unsigned StructureFlags = OverridesGetOwnPropertySlot | OverridesMarkChildren | JSObject::StructureFlags;
+
+    private:
+        JSActivation* m_activation;
+    };
+
+} // namespace JSC
+
+#endif // DebuggerActivation_h
diff --git a/Source/JavaScriptCore/debugger/DebuggerCallFrame.cpp b/Source/JavaScriptCore/debugger/DebuggerCallFrame.cpp
new file mode 100644
index 0000000..ed673cb
--- /dev/null
+++ b/Source/JavaScriptCore/debugger/DebuggerCallFrame.cpp
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "DebuggerCallFrame.h"
+
+#include "JSFunction.h"
+#include "CodeBlock.h"
+#include "Interpreter.h"
+#include "Parser.h"
+
+namespace JSC {
+
+const UString* DebuggerCallFrame::functionName() const
+{
+    if (!m_callFrame->codeBlock())
+        return 0;
+
+    if (!m_callFrame->callee())
+        return 0;
+
+    JSObject* function = m_callFrame->callee();
+    if (!function || !function->inherits(&JSFunction::info))
+        return 0;
+    return &asFunction(function)->name(m_callFrame);
+}
+    
+UString DebuggerCallFrame::calculatedFunctionName() const
+{
+    if (!m_callFrame->codeBlock())
+        return UString();
+
+    JSObject* function = m_callFrame->callee();
+    if (!function || !function->inherits(&JSFunction::info))
+        return UString();
+
+    return asFunction(function)->calculatedDisplayName(m_callFrame);
+}
+
+DebuggerCallFrame::Type DebuggerCallFrame::type() const
+{
+    if (m_callFrame->callee())
+        return FunctionType;
+
+    return ProgramType;
+}
+
+JSObject* DebuggerCallFrame::thisObject() const
+{
+    CodeBlock* codeBlock = m_callFrame->codeBlock();
+    if (!codeBlock)
+        return 0;
+
+    JSValue thisValue = m_callFrame->uncheckedR(codeBlock->thisRegister()).jsValue();
+    if (!thisValue.isObject())
+        return 0;
+
+    return asObject(thisValue);
+}
+
+JSValue DebuggerCallFrame::evaluate(const UString& script, JSValue& exception) const
+{
+    if (!m_callFrame->codeBlock())
+        return JSValue();
+
+    RefPtr<EvalExecutable> eval = EvalExecutable::create(m_callFrame, makeSource(script), m_callFrame->codeBlock()->isStrictMode());
+    JSObject* error = eval->compile(m_callFrame, m_callFrame->scopeChain());
+    if (error)
+        return error;
+
+    JSGlobalData& globalData = m_callFrame->globalData();
+    JSValue result = globalData.interpreter->execute(eval.get(), m_callFrame, thisObject(), m_callFrame->scopeChain());
+    if (globalData.exception) {
+        exception = globalData.exception;
+        globalData.exception = JSValue();
+    }
+    ASSERT(result);
+    return result;
+}
+
+} // namespace JSC
diff --git a/Source/JavaScriptCore/debugger/DebuggerCallFrame.h b/Source/JavaScriptCore/debugger/DebuggerCallFrame.h
new file mode 100644
index 0000000..9d377ef
--- /dev/null
+++ b/Source/JavaScriptCore/debugger/DebuggerCallFrame.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+ 
+#ifndef DebuggerCallFrame_h
+#define DebuggerCallFrame_h
+
+#include "CallFrame.h"
+
+namespace JSC {
+    
+    class DebuggerCallFrame {
+    public:
+        enum Type { ProgramType, FunctionType };
+
+        DebuggerCallFrame(CallFrame* callFrame)
+            : m_callFrame(callFrame)
+        {
+        }
+
+        DebuggerCallFrame(CallFrame* callFrame, JSValue exception)
+            : m_callFrame(callFrame)
+            , m_exception(exception)
+        {
+        }
+
+        JSGlobalObject* dynamicGlobalObject() const { return m_callFrame->dynamicGlobalObject(); }
+        const ScopeChainNode* scopeChain() const { return m_callFrame->scopeChain(); }
+        const UString* functionName() const;
+        UString calculatedFunctionName() const;
+        Type type() const;
+        JSObject* thisObject() const;
+        JSValue evaluate(const UString&, JSValue& exception) const;
+        JSValue exception() const { return m_exception; }
+
+    private:
+        CallFrame* m_callFrame;
+        JSValue m_exception;
+    };
+
+} // namespace JSC
+
+#endif // DebuggerCallFrame_h