Function mountClassInstance

code/styling/public/app.js:8515–8556

(workInProgress, renderExpirationTime)

  // Invokes the mount life-cycles on a previously never rendered instance.
  function mountClassInstance(workInProgress, renderExpirationTime) {
    var ctor = workInProgress.type;
    var current = workInProgress.alternate;

    {
      checkClassInstance(workInProgress);
    }

    var instance = workInProgress.stateNode;
    var props = workInProgress.pendingProps;
    var unmaskedContext = getUnmaskedContext(workInProgress);

    instance.props = props;
    instance.state = workInProgress.memoizedState;
    instance.refs = emptyObject;
    instance.context = getMaskedContext(workInProgress, unmaskedContext);

    {
      if (workInProgress.mode & StrictMode) {
        ReactStrictModeWarnings.recordUnsafeLifecycleWarnings(workInProgress, instance);
      }

      if (warnAboutDeprecatedLifecycles) {
        ReactStrictModeWarnings.recordDeprecationWarnings(workInProgress, instance);
      }
    }

    // In order to support react-lifecycles-compat polyfilled components,
    // Unsafe lifecycles should not be invoked for any component with the new gDSFP.
    if ((typeof instance.UNSAFE_componentWillMount === 'function' || typeof instance.componentWillMount === 'function') && typeof ctor.getDerivedStateFromProps !== 'function') {
      callComponentWillMount(workInProgress, instance);
      // If we had additional state updates during this life-cycle, let's
      // process them now.
      var updateQueue = workInProgress.updateQueue;
      if (updateQueue !== null) {
        instance.state = processUpdateQueue(current, workInProgress, updateQueue, instance, props, renderExpirationTime);
      }
    }
    if (typeof instance.componentDidMount === 'function') {
      workInProgress.effectTag |= Update;
    }
  }

  function resumeMountClassInstance(workInProgress, renderExpirationTime) {
    var ctor = workInProgress.type;