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  *

     8  * 1.  Redistributions of source code must retain the above copyright

     9  *     notice, this list of conditions and the following disclaimer.

    10  * 2.  Redistributions in binary form must reproduce the above copyright

    11  *     notice, this list of conditions and the following disclaimer in the

    12  *     documentation and/or other materials provided with the distribution.

    13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

    14  *     its contributors may be used to endorse or promote products derived

    15  *     from this software without specific prior written permission.

    16  *

    17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

    18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

    19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

    20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

    21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

    22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

    23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

    24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

    26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    27  */

    28 

    29 #include "config.h"

    30 #include "DebuggerCallFrame.h"

    31 

    32 #include "JSFunction.h"

    33 #include "CodeBlock.h"

    34 #include "Interpreter.h"

    35 #include "Parser.h"

    36 

    37 namespace JSC {

    38 

    39 const UString* DebuggerCallFrame::functionName() const

    40 {

    41     if (!m_callFrame->codeBlock())

    42         return 0;

    43 

    44     if (!m_callFrame->callee())

    45         return 0;

    46 

    47     JSObject* function = m_callFrame->callee();

    48     if (!function || !function->inherits(&JSFunction::info))

    49         return 0;

    50     return &asFunction(function)->name(m_callFrame);

    51 }

    52     

    53 UString DebuggerCallFrame::calculatedFunctionName() const

    54 {

    55     if (!m_callFrame->codeBlock())

    56         return UString();

    57 

    58     JSObject* function = m_callFrame->callee();

    59     if (!function || !function->inherits(&JSFunction::info))

    60         return 0;

    61 

    62     return asFunction(function)->calculatedDisplayName(m_callFrame);

    63 }

    64 

    65 DebuggerCallFrame::Type DebuggerCallFrame::type() const

    66 {

    67     if (m_callFrame->callee())

    68         return FunctionType;

    69 

    70     return ProgramType;

    71 }

    72 

    73 JSObject* DebuggerCallFrame::thisObject() const

    74 {

    75     CodeBlock* codeBlock = m_callFrame->codeBlock();

    76     if (!codeBlock)

    77         return 0;

    78 

    79     JSValue thisValue = m_callFrame->r(codeBlock->thisRegister()).jsValue();

    80     if (!thisValue.isObject())

    81         return 0;

    82 

    83     return asObject(thisValue);

    84 }

    85 

    86 JSValue DebuggerCallFrame::evaluate(const UString& script, JSValue& exception) const

    87 {

    88     if (!m_callFrame->codeBlock())

    89         return JSValue();

    90 

    91     RefPtr<EvalExecutable> eval = EvalExecutable::create(m_callFrame, makeSource(script));

    92     JSObject* error = eval->compile(m_callFrame, m_callFrame->scopeChain());

    93     if (error)

    94         return error;

    95 

    96     return m_callFrame->scopeChain()->globalData->interpreter->execute(eval.get(), m_callFrame, thisObject(), m_callFrame->scopeChain(), &exception);

    97 }

    98 

    99 } // namespace JSC