JSValue VM::throwException(ExecState* exec, JSValue error)
{
if (Options::breakOnThrow()) {
dataLog("In call frame ", RawPointer(exec), " for code block ", *exec->codeBlock(), "\n");
CRASH();
}
ASSERT(exec == topCallFrame || exec == exec->lexicalGlobalObject()->globalExec() || exec == exec->vmEntryGlobalObject()->globalExec());
Vector<StackFrame> stackTrace;
interpreter->getStackTrace(stackTrace);
m_exceptionStack = RefCountedArray<StackFrame>(stackTrace);
m_exception = error;
if (stackTrace.isEmpty() || !error.isObject())
return error;
JSObject* exception = asObject(error);
StackFrame stackFrame;
for (unsigned i = 0 ; i < stackTrace.size(); ++i) {
stackFrame = stackTrace.at(i);
if (stackFrame.bytecodeOffset)
break;
}
if (!hasErrorInfo(exec, exception)) {
// FIXME: We should only really be adding these properties to VM generated exceptions,
// but the inspector currently requires these for all thrown objects.
unsigned line;
unsigned column;
stackFrame.computeLineAndColumn(line, column);
exception->putDirect(*this, Identifier(this, "line"), jsNumber(line), ReadOnly | DontDelete);
exception->putDirect(*this, Identifier(this, "column"), jsNumber(column), ReadOnly | DontDelete);
if (!stackFrame.sourceURL.isEmpty())
exception->putDirect(*this, Identifier(this, "sourceURL"), jsString(this, stackFrame.sourceURL), ReadOnly | DontDelete);
}
if (exception->isErrorInstance() && static_cast<ErrorInstance*>(exception)->appendSourceToMessage()) {
FindFirstCallerFrameWithCodeblockFunctor functor(exec);
topCallFrame->iterate(functor);
CallFrame* callFrame = functor.foundCallFrame();
unsigned stackIndex = functor.index();
if (callFrame && callFrame->codeBlock()) {
stackFrame = stackTrace.at(stackIndex);
appendSourceToError(callFrame, static_cast<ErrorInstance*>(exception), stackFrame.bytecodeOffset);
}
}
if (exception->hasProperty(exec, this->propertyNames->stack))
return error;
exception->putDirect(*this, propertyNames->stack, interpreter->stackTraceAsString(topCallFrame, stackTrace), DontEnum);
return error;
}
JSValue VM::throwException(ExecState* exec, JSValue error)
{
ASSERT(exec == topCallFrame || exec == exec->lexicalGlobalObject()->globalExec() || exec == exec->dynamicGlobalObject()->globalExec());
Vector<StackFrame> stackTrace;
interpreter->getStackTrace(stackTrace);
m_exceptionStack = RefCountedArray<StackFrame>(stackTrace);
m_exception = error;
if (stackTrace.isEmpty() || !error.isObject())
return error;
JSObject* exception = asObject(error);
StackFrame stackFrame;
for (unsigned i = 0 ; i < stackTrace.size(); ++i) {
stackFrame = stackTrace.at(i);
if (stackFrame.bytecodeOffset)
break;
}
unsigned bytecodeOffset = stackFrame.bytecodeOffset;
if (!hasErrorInfo(exec, exception)) {
// FIXME: We should only really be adding these properties to VM generated exceptions,
// but the inspector currently requires these for all thrown objects.
unsigned line;
unsigned column;
stackFrame.computeLineAndColumn(line, column);
exception->putDirect(*this, Identifier(this, "line"), jsNumber(line), ReadOnly | DontDelete);
exception->putDirect(*this, Identifier(this, "column"), jsNumber(column), ReadOnly | DontDelete);
if (!stackFrame.sourceURL.isEmpty())
exception->putDirect(*this, Identifier(this, "sourceURL"), jsString(this, stackFrame.sourceURL), ReadOnly | DontDelete);
}
if (exception->isErrorInstance() && static_cast<ErrorInstance*>(exception)->appendSourceToMessage()) {
unsigned stackIndex = 0;
CallFrame* callFrame;
for (callFrame = exec; callFrame && !callFrame->codeBlock(); callFrame = callFrame->callerFrame()->removeHostCallFrameFlag())
stackIndex++;
if (callFrame && callFrame->codeBlock()) {
stackFrame = stackTrace.at(stackIndex);
bytecodeOffset = stackFrame.bytecodeOffset;
appendSourceToError(callFrame, static_cast<ErrorInstance*>(exception), bytecodeOffset);
}
}
if (exception->hasProperty(exec, this->propertyNames->stack))
return error;
exception->putDirect(*this, propertyNames->stack, interpreter->stackTraceAsString(topCallFrame, stackTrace), DontEnum);
return error;
}
void ErrorInstance::finishCreation(ExecState* exec, VM& vm, const String& message, bool useCurrentFrame)
{
Base::finishCreation(vm);
ASSERT(inherits(info()));
if (!message.isNull())
putDirect(vm, vm.propertyNames->message, jsString(&vm, message), DontEnum);
unsigned bytecodeOffset = hasSourceAppender();
CallFrame* callFrame = nullptr;
bool hasTrace = addErrorInfoAndGetBytecodeOffset(exec, vm, this, useCurrentFrame, callFrame, bytecodeOffset);
if (hasTrace && callFrame && hasSourceAppender()) {
if (callFrame && callFrame->codeBlock())
appendSourceToError(callFrame, this, bytecodeOffset);
}
}
