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Stub invariant for navigation containers

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This commit is contained in:
Eric Vicenti
2018-10-11 15:53:49 -07:00
parent 9ac9ac423d
commit aeb09c3a55
1 changed files with 2 additions and 0 deletions
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2
packages/core/src/navigators/createNavigator.js
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@@ -1,5 +1,6 @@
import React from 'react';
import { polyfill } from 'react-lifecycles-compat';
import invariant from '../utils/invariant';
function createNavigator(NavigatorView, router, navigationConfig) {
class Navigator extends React.Component {
@@ -14,6 +15,7 @@ function createNavigator(NavigatorView, router, navigationConfig) {
static getDerivedStateFromProps(nextProps, prevState) {
const prevDescriptors = prevState.descriptors;
const { navigation, screenProps } = nextProps;
invariant(navigation != null, 'Navigation containers!');
const { state } = navigation;
const { routes } = state;
if (typeof routes === 'undefined') {