Function callGetDerivedStateFromProps

code/redux/public/app.js:8739–8763

(workInProgress, instance, nextProps, prevState)

  }

  function callGetDerivedStateFromProps(workInProgress, instance, nextProps, prevState) {
    var type = workInProgress.type;


    if (typeof type.getDerivedStateFromProps === 'function') {
      if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
        // Invoke method an extra time to help detect side-effects.
        type.getDerivedStateFromProps.call(null, nextProps, prevState);
      }

      var partialState = type.getDerivedStateFromProps.call(null, nextProps, prevState);

      {
        if (partialState === undefined) {
          var componentName = getComponentName(workInProgress) || 'Component';
          if (!didWarnAboutUndefinedDerivedState[componentName]) {
            warning(false, '%s.getDerivedStateFromProps(): A valid state object (or null) must be returned. ' + 'You have returned undefined.', componentName);
            didWarnAboutUndefinedDerivedState[componentName] = componentName;
          }
        }
      }

      return partialState;
    }
  }

  // Invokes the mount life-cycles on a previously never rendered instance.
  function mountClassInstance(workInProgress, renderExpirationTime) {