C++ (Cpp) InfallibleTArray::ElementAt Examples

Example #1

File: JetpackChild.cpp Project: krad-radio/mozilla-krad

JSBool
JetpackChild::CallMessage(JSContext* cx, uintN argc, jsval* vp)
{
  MessageResult smr;
  if (!MessageCommon(cx, argc, vp, &smr))
    return JS_FALSE;

  InfallibleTArray<Variant> results;
  if (!GetThis(cx)->CallCallMessage(smr.msgName, smr.data, &results)) {
    JS_ReportError(cx, "Failed to callMessage");
    return JS_FALSE;
  }

  nsAutoTArray<jsval, 4> jsvals;
  jsval* rvals = jsvals.AppendElements(results.Length());
  if (!rvals) {
    JS_ReportOutOfMemory(cx);
    return JS_FALSE;
  }
  for (PRUint32 i = 0; i < results.Length(); ++i)
    rvals[i] = JSVAL_VOID;
  js::AutoArrayRooter root(cx, results.Length(), rvals);

  for (PRUint32 i = 0; i < results.Length(); ++i)
    if (!jsval_from_Variant(cx, results.ElementAt(i), rvals + i)) {
      JS_ReportError(cx, "Invalid result from handler %d", i);
      return JS_FALSE;
    }

  JSObject* arrObj = JS_NewArrayObject(cx, results.Length(), rvals);
  if (!arrObj) {
    JS_ReportOutOfMemory(cx);
    return JS_FALSE;
  }
  JS_SET_RVAL(cx, vp, OBJECT_TO_JSVAL(arrObj));

  return JS_TRUE;
}