void
WrapperPromiseCallback::Call(const Optional<JS::Handle<JS::Value> >& aValue)
{
  AutoJSContext cx;
  Maybe<JSAutoCompartment> ac;
  EnterCompartment(ac, cx, aValue);

  ErrorResult rv;

  // If invoking callback threw an exception, run resolver's reject with the
  // thrown exception as argument and the synchronous flag set.
  Optional<JS::Handle<JS::Value> > value(cx,
    mCallback->Call(mNextResolver->GetParentObject(), aValue, rv,
                    CallbackObject::eRethrowExceptions));

  rv.WouldReportJSException();

  if (rv.Failed() && rv.IsJSException()) {
    Optional<JS::Handle<JS::Value> > value(cx);
    rv.StealJSException(cx, &value.Value());

    Maybe<JSAutoCompartment> ac2;
    EnterCompartment(ac2, cx, value);
    mNextResolver->RejectInternal(cx, value, PromiseResolver::SyncTask);
    return;
  }

  // Otherwise, run resolver's resolve with value and the synchronous flag
  // set.
  Maybe<JSAutoCompartment> ac2;
  EnterCompartment(ac2, cx, value);
  mNextResolver->ResolveInternal(cx, value, PromiseResolver::SyncTask);
}
Example #2
0
void
WrapperPromiseCallback::Call(const Optional<JS::Handle<JS::Value> >& aValue)
{
  AutoJSContext cx;
  // FIXME Bug 878849
  Maybe<JSAutoCompartment> ac;
  if (aValue.WasPassed() && aValue.Value().isObject()) {
    JS::Rooted<JSObject*> rooted(cx, &aValue.Value().toObject());
    ac.construct(cx, rooted);
  }

  ErrorResult rv;

  // If invoking callback threw an exception, run resolver's reject with the
  // thrown exception as argument and the synchronous flag set.
  Optional<JS::Handle<JS::Value> > value(cx,
    mCallback->Call(mNextResolver->GetParentObject(), aValue, rv,
                    CallbackObject::eRethrowExceptions));

  rv.WouldReportJSException();

  if (rv.Failed() && rv.IsJSException()) {
    Optional<JS::Handle<JS::Value> > value(cx);
    rv.StealJSException(cx, &value.Value());
    mNextResolver->RejectInternal(cx, value, PromiseResolver::SyncTask);
    return;
  }

  // Otherwise, run resolver's resolve with value and the synchronous flag
  // set.
  mNextResolver->ResolveInternal(cx, value, PromiseResolver::SyncTask);
}
Example #3
0
STUN_NAT_TYPE_T StunResolver::Resolve()
{
	STUN_NAT_TYPE_T type = STUN_NAT_TYPE_UNKNOWN;
	for (list<string>::iterator iter = mstunServerList.begin();
		iter != mstunServerList.end(); iter++) {
		type = ResolveInternal(*iter);
		if (STUN_NAT_TYPE_UNKNOWN != type)
			break;
	}

	return type;
}
void
WrapperPromiseCallback::Call(JS::Handle<JS::Value> aValue)
{
  // AutoCxPusher and co. interact with xpconnect, which crashes on
  // workers. On workers we'll get the right context from
  // GetDefaultJSContextForThread(), and since there is only one context, we
  // don't need to push or pop it from the stack.
  JSContext* cx = nsContentUtils::GetDefaultJSContextForThread();

  Maybe<AutoCxPusher> pusher;
  if (NS_IsMainThread()) {
    pusher.construct(cx);
  }

  Maybe<JSAutoCompartment> ac;
  EnterCompartment(ac, cx, aValue);

  ErrorResult rv;

  // If invoking callback threw an exception, run resolver's reject with the
  // thrown exception as argument and the synchronous flag set.
  JS::Rooted<JS::Value> value(cx,
    mCallback->Call(mNextPromise->GetParentObject(), aValue, rv,
                    CallbackObject::eRethrowExceptions));

  rv.WouldReportJSException();

  if (rv.Failed() && rv.IsJSException()) {
    JS::Rooted<JS::Value> value(cx);
    rv.StealJSException(cx, &value);

    Maybe<JSAutoCompartment> ac2;
    EnterCompartment(ac2, cx, value);
    mNextPromise->RejectInternal(cx, value, Promise::SyncTask);
    return;
  }

  // Otherwise, run resolver's resolve with value and the synchronous flag
  // set.
  Maybe<JSAutoCompartment> ac2;
  EnterCompartment(ac2, cx, value);
  mNextPromise->ResolveInternal(cx, value, Promise::SyncTask);
}
void
WrapperPromiseCallback::Call(JS::Handle<JS::Value> aValue)
{
  // AutoCxPusher and co. interact with xpconnect, which crashes on
  // workers. On workers we'll get the right context from
  // GetDefaultJSContextForThread(), and since there is only one context, we
  // don't need to push or pop it from the stack.
  JSContext* cx = nsContentUtils::GetDefaultJSContextForThread();

  Maybe<AutoCxPusher> pusher;
  if (NS_IsMainThread()) {
    pusher.construct(cx);
  }

  Maybe<JSAutoCompartment> ac;
  EnterCompartment(ac, cx, aValue);

  ErrorResult rv;

  // If invoking callback threw an exception, run resolver's reject with the
  // thrown exception as argument and the synchronous flag set.
  JS::Rooted<JS::Value> value(cx,
    mCallback->Call(aValue, rv, CallbackObject::eRethrowExceptions));

  rv.WouldReportJSException();

  if (rv.Failed() && rv.IsJSException()) {
    JS::Rooted<JS::Value> value(cx);
    rv.StealJSException(cx, &value);

    Maybe<JSAutoCompartment> ac2;
    EnterCompartment(ac2, cx, value);
    mNextPromise->RejectInternal(cx, value, Promise::SyncTask);
    return;
  }

  // If the return value is the same as the promise itself, throw TypeError.
  if (value.isObject()) {
    JS::Rooted<JSObject*> valueObj(cx, &value.toObject());
    Promise* returnedPromise;
    nsresult r = UNWRAP_OBJECT(Promise, valueObj, returnedPromise);

    if (NS_SUCCEEDED(r) && returnedPromise == mNextPromise) {
      const char* fileName = nullptr;
      uint32_t lineNumber = 0;

      // Try to get some information about the callback to report a sane error,
      // but don't try too hard (only deals with scripted functions).
      JS::Rooted<JSObject*> unwrapped(cx,
        js::CheckedUnwrap(mCallback->Callback()));

      if (unwrapped) {
        JSAutoCompartment ac(cx, unwrapped);
        if (JS_ObjectIsFunction(cx, unwrapped)) {
          JS::Rooted<JS::Value> asValue(cx, JS::ObjectValue(*unwrapped));
          JS::Rooted<JSFunction*> func(cx, JS_ValueToFunction(cx, asValue));

          MOZ_ASSERT(func);
          JSScript* script = JS_GetFunctionScript(cx, func);
          if (script) {
            fileName = JS_GetScriptFilename(cx, script);
            lineNumber = JS_GetScriptBaseLineNumber(cx, script);
          }
        }
      }

      // We're back in aValue's compartment here.
      JS::Rooted<JSString*> stack(cx, JS_GetEmptyString(JS_GetRuntime(cx)));
      JS::Rooted<JSString*> fn(cx, JS_NewStringCopyZ(cx, fileName));
      if (!fn) {
        // Out of memory. Promise will stay unresolved.
        JS_ClearPendingException(cx);
        return;
      }

      JS::Rooted<JSString*> message(cx,
        JS_NewStringCopyZ(cx,
          "then() cannot return same Promise that it resolves."));
      if (!message) {
        // Out of memory. Promise will stay unresolved.
        JS_ClearPendingException(cx);
        return;
      }

      JS::Rooted<JS::Value> typeError(cx);
      if (!JS::CreateTypeError(cx, stack, fn, lineNumber, 0,
                               nullptr, message, &typeError)) {
        // Out of memory. Promise will stay unresolved.
        JS_ClearPendingException(cx);
        return;
      }

      mNextPromise->RejectInternal(cx, typeError, Promise::SyncTask);
      return;
    }
  }

  // Otherwise, run resolver's resolve with value and the synchronous flag
  // set.
  Maybe<JSAutoCompartment> ac2;
  EnterCompartment(ac2, cx, value);
  mNextPromise->ResolveInternal(cx, value, Promise::SyncTask);
}