| 1 | /*
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| 2 | * Copyright (C) 2008 Apple Inc. All rights reserved.
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| 3 | *
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| 4 | * Redistribution and use in source and binary forms, with or without
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| 5 | * modification, are permitted provided that the following conditions
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| 6 | * are met:
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| 7 | *
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| 8 | * 1. Redistributions of source code must retain the above copyright
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| 9 | * notice, this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer in the
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| 12 | * documentation and/or other materials provided with the distribution.
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| 13 | * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
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| 14 | * its contributors may be used to endorse or promote products derived
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| 15 | * from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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| 18 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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| 19 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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| 20 | * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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| 21 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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| 22 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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| 23 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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| 24 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | #include "config.h"
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| 30 | #include "DebuggerCallFrame.h"
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| 31 |
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| 32 | #include "JSFunction.h"
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| 33 | #include "CodeBlock.h"
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| 34 | #include "Machine.h"
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| 35 | #include "Parser.h"
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| 36 |
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| 37 | namespace KJS {
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| 38 |
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| 39 | Register* DebuggerCallFrame::callFrame() const
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| 40 | {
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| 41 | return m_registers - m_codeBlock->numLocals - RegisterFile::CallFrameHeaderSize;
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| 42 | }
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| 43 |
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| 44 | const UString* DebuggerCallFrame::functionName() const
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| 45 | {
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| 46 | if (!m_codeBlock)
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| 47 | return 0;
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| 48 |
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| 49 | JSFunction* function = static_cast<JSFunction*>(callFrame()[RegisterFile::Callee].u.jsValue);
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| 50 | if (!function)
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| 51 | return 0;
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| 52 | return &function->functionName().ustring();
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| 53 | }
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| 54 |
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| 55 | DebuggerCallFrame::Type DebuggerCallFrame::type() const
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| 56 | {
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| 57 | if (callFrame()[RegisterFile::Callee].u.jsObject)
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| 58 | return FunctionType;
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| 59 |
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| 60 | return ProgramType;
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| 61 | }
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| 62 |
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| 63 | JSObject* DebuggerCallFrame::thisObject() const
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| 64 | {
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| 65 | if (!m_codeBlock)
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| 66 | return 0;
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| 67 |
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| 68 | return static_cast<JSObject*>(m_registers[m_codeBlock->thisRegister].u.jsValue);
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| 69 | }
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| 70 |
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| 71 | JSValue* DebuggerCallFrame::evaluate(const UString& script, JSValue*& exception) const
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| 72 | {
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| 73 | if (!m_codeBlock)
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| 74 | return 0;
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| 75 |
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| 76 | JSObject* thisObject = this->thisObject();
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| 77 |
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| 78 | ExecState newExec(m_scopeChain->globalObject(), thisObject, m_scopeChain);
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| 79 |
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| 80 | int sourceId;
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| 81 | int errLine;
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| 82 | UString errMsg;
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| 83 |
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| 84 | RefPtr<EvalNode> evalNode = newExec.parser()->parse<EvalNode>(&newExec, UString(), 1, UStringSourceProvider::create(script), &sourceId, &errLine, &errMsg);
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| 85 |
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| 86 | if (!evalNode)
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| 87 | return Error::create(&newExec, SyntaxError, errMsg, errLine, sourceId, 0);
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| 88 |
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| 89 | return newExec.machine()->execute(evalNode.get(), &newExec, thisObject, m_scopeChain, &exception);
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| 90 | }
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| 91 |
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| 92 | } // namespace KJS
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