static JSValue retrieveCallerFunction(ExecState* exec, JSFunction* functionObj)
{
StackIterator iter = exec->find(functionObj, skipOverBoundFunctions);
if (iter != exec->end())
++iter;
return iter != exec->end() && iter->callee() ? iter->callee() : jsNull();
}
PassRefPtr<ScriptCallStack> createScriptCallStack(JSC::ExecState* exec, size_t maxStackSize)
{
Vector<ScriptCallFrame> frames;
ASSERT(exec);
CallFrame* frame = exec->vm().topCallFrame;
StackIterator iter = frame->begin();
if (iter.numberOfFrames() > 1)
++iter;
for (; iter != frame->end() && maxStackSize--; ++iter) {
// This early exit is necessary to maintain our old behaviour
// but the stack trace we produce now is complete and handles all
// ways in which code may be running
if (!iter->callee() && frames.size())
break;
unsigned line;
unsigned column;
iter->computeLineAndColumn(line, column);
frames.append(ScriptCallFrame(iter->functionName(), iter->sourceURL(), line, column));
}
return ScriptCallStack::create(frames);
}
