Function checkShouldComponentUpdate

dash/deps/react-dom@18.3.1.js:17998–18029

(workInProgress, ctor, oldProps, newProps, oldState, newState, nextContext)

  };

  function checkShouldComponentUpdate(workInProgress, ctor, oldProps, newProps, oldState, newState, nextContext) {
    var instance = workInProgress.stateNode;

    if (typeof instance.shouldComponentUpdate === 'function') {
      var shouldUpdate = instance.shouldComponentUpdate(newProps, newState, nextContext);

      {
        if ( workInProgress.mode & StrictLegacyMode) {
          setIsStrictModeForDevtools(true);

          try {
            // Invoke the function an extra time to help detect side-effects.
            shouldUpdate = instance.shouldComponentUpdate(newProps, newState, nextContext);
          } finally {
            setIsStrictModeForDevtools(false);
          }
        }

        if (shouldUpdate === undefined) {
          error('%s.shouldComponentUpdate(): Returned undefined instead of a ' + 'boolean value. Make sure to return true or false.', getComponentNameFromType(ctor) || 'Component');
        }
      }

      return shouldUpdate;
    }

    if (ctor.prototype && ctor.prototype.isPureReactComponent) {
      return !shallowEqual(oldProps, newProps) || !shallowEqual(oldState, newState);
    }

    return true;
  }

  function checkClassInstance(workInProgress, ctor, newProps) {
    var instance = workInProgress.stateNode;