Function updateContextProvider

lib/assets/react-source/development/react.js:21917–21953

(current, workInProgress, renderExpirationTime)

	}

	function updateContextProvider(current, workInProgress, renderExpirationTime) {
	  var providerType = workInProgress.type;
	  var context = providerType._context;
	  var newProps = workInProgress.pendingProps;
	  var oldProps = workInProgress.memoizedProps;
	  var newValue = newProps.value;

	  {
	    var providerPropTypes = workInProgress.type.propTypes;

	    if (providerPropTypes) {
	      checkPropTypes(providerPropTypes, newProps, 'prop', 'Context.Provider', getCurrentFiberStackInDev);
	    }
	  }

	  pushProvider(workInProgress, newValue);

	  if (oldProps !== null) {
	    var oldValue = oldProps.value;
	    var changedBits = calculateChangedBits(context, newValue, oldValue);

	    if (changedBits === 0) {
	      // No change. Bailout early if children are the same.
	      if (oldProps.children === newProps.children && !hasContextChanged()) {
	        return bailoutOnAlreadyFinishedWork(current, workInProgress, renderExpirationTime);
	      }
	    } else {
	      // The context value changed. Search for matching consumers and schedule
	      // them to update.
	      propagateContextChange(workInProgress, context, changedBits, renderExpirationTime);
	    }
	  }

	  var newChildren = newProps.children;
	  reconcileChildren(current, workInProgress, newChildren, renderExpirationTime);
	  return workInProgress.child;
	}

	var hasWarnedAboutUsingContextAsConsumer = false;