JSValue* DebuggerCallFrame::evaluate(const UString& script, JSValue*& exception) const
{
if (!m_codeBlock)
return 0;
JSObject* thisObject = this->thisObject();
ExecState newExec(m_scopeChain->globalObject(), thisObject, m_scopeChain);
int sourceId;
int errLine;
UString errMsg;
RefPtr<SourceProvider> sourceProvider = UStringSourceProvider::create(script);
RefPtr<EvalNode> evalNode = newExec.parser()->parse<EvalNode>(&newExec, UString(), 1, sourceProvider, &sourceId, &errLine, &errMsg);
if (!evalNode)
return Error::create(&newExec, SyntaxError, errMsg, errLine, sourceId, 0);
return newExec.machine()->execute(evalNode.get(), &newExec, thisObject, m_scopeChain, &exception);
}
Completion Interpreter::evaluate(const UString& sourceURL, int startingLineNumber, const UChar* code, int codeLength, JSValue* thisV)
{
JSLock lock;
// prevent against infinite recursion
if (m_recursion >= 20)
return Completion(Throw, Error::create(&m_globalExec, GeneralError, "Recursion too deep"));
// parse the source code
int sid;
int errLine;
UString errMsg;
RefPtr<ProgramNode> progNode = Parser::parse(sourceURL, startingLineNumber, code, codeLength, &sid, &errLine, &errMsg);
// notify debugger that source has been parsed
if (m_debugger) {
bool cont = m_debugger->sourceParsed(&m_globalExec, sid, sourceURL, UString(code, codeLength), startingLineNumber, errLine, errMsg);
if (!cont)
return Completion(Break);
}
// no program node means a syntax error occurred
if (!progNode)
return Completion(Throw, Error::create(&m_globalExec, SyntaxError, errMsg, errLine, sid, sourceURL));
m_globalExec.clearException();
m_recursion++;
JSObject* globalObj = m_globalObject;
JSObject* thisObj = globalObj;
// "this" must be an object... use same rules as Function.prototype.apply()
if (thisV && !thisV->isUndefinedOrNull())
thisObj = thisV->toObject(&m_globalExec);
Completion res;
if (m_globalExec.hadException())
// the thisV->toObject() conversion above might have thrown an exception - if so, propagate it
res = Completion(Throw, m_globalExec.exception());
else {
// execute the code
Context ctx(globalObj, this, thisObj, progNode.get());
ExecState newExec(this, &ctx);
ctx.setExecState(&newExec);
progNode->processVarDecls(&newExec);
res = progNode->execute(&newExec);
}
m_recursion--;
if (shouldPrintExceptions() && res.complType() == Throw) {
JSLock lock;
ExecState* exec = globalExec();
CString f = sourceURL.UTF8String();
CString message = res.value()->toObject(exec)->toString(exec).UTF8String();
int line = res.value()->toObject(exec)->get(exec, "line")->toUInt32(exec);
#if PLATFORM(WIN_OS)
printf("%s line %d: %s\n", f.c_str(), line, message.c_str());
#else
printf("[%d] %s line %d: %s\n", getpid(), f.c_str(), line, message.c_str());
#endif
}
return res;
}
