Function cacheContext

code/new-context-api/public/app.js:11669–11673

(workInProgress, unmaskedContext, maskedContext)

  }

  function cacheContext(workInProgress, unmaskedContext, maskedContext) {
    var instance = workInProgress.stateNode;
    instance.__reactInternalMemoizedUnmaskedChildContext = unmaskedContext;
    instance.__reactInternalMemoizedMaskedChildContext = maskedContext;
  }

  function getMaskedContext(workInProgress, unmaskedContext) {
    var type = workInProgress.type;