JavaScriptCore/debugger/DebuggerCallFrame.cpp

/*
 * Copyright (C) 2008 Apple Inc. All rights reserved.
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 *     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
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#include "config.h"
#include "DebuggerCallFrame.h"

#include "JSFunction.h"
#include "CodeBlock.h"
#include "Machine.h"
#include "Parser.h"

namespace JSC {

const UString* DebuggerCallFrame::functionName() const
{
    if (!m_callFrame->codeBlock())
        return 0;

    JSFunction* function = static_cast<JSFunction*>(m_callFrame->callee());
    if (!function)
        return 0;
    return &function->name(&m_callFrame->globalData());
}

DebuggerCallFrame::Type DebuggerCallFrame::type() const
{
    if (m_callFrame->callee())
        return FunctionType;

    return ProgramType;
}

JSObject* DebuggerCallFrame::thisObject() const
{
    if (!m_callFrame->codeBlock())
        return 0;

    // FIXME: Why is it safe to assume this is an object?
    return asObject(m_callFrame->thisValue());
}

JSValue* DebuggerCallFrame::evaluate(const UString& script, JSValue*& exception) const
{
    if (!m_callFrame->codeBlock())
        return noValue();

    int errLine;
    UString errMsg;
    SourceCode source = makeSource(script);
    RefPtr<EvalNode> evalNode = m_callFrame->scopeChain()->globalData->parser->parse<EvalNode>(m_callFrame, m_callFrame->dynamicGlobalObject()->debugger(), source, &errLine, &errMsg);
    if (!evalNode)
        return Error::create(m_callFrame, SyntaxError, errMsg, errLine, source.provider()->asID(), source.provider()->url());

    return m_callFrame->scopeChain()->globalData->machine->execute(evalNode.get(), m_callFrame, thisObject(), m_callFrame->scopeChain(), &exception);
}

} // namespace JSC