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Validate props on context providers #12658

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merged 17 commits into from
Apr 22, 2018
Merged

Validate props on context providers #12658

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1193a94
checkPropTypes in updateContextProvider
wherestheguac Apr 20, 2018
1184974
invalid “prop”
wherestheguac Apr 20, 2018
2547b22
`type not `types` .. :l
wherestheguac Apr 20, 2018
b596129
test
wherestheguac Apr 20, 2018
b26897e
don’t need extra check with no spelling mistake (:
wherestheguac Apr 20, 2018
ed42cac
change error message to specifically address provider
wherestheguac Apr 20, 2018
63ef731
don’t need class, add extra render to make sure good props go through
wherestheguac Apr 20, 2018
ea50645
nitpicky rename
wherestheguac Apr 20, 2018
683fdfe
prettier
wherestheguac Apr 20, 2018
5a38c06
switch to `Context.Provider`
wherestheguac Apr 20, 2018
bdfab1f
add stack to warning, add extra undefined check
wherestheguac Apr 20, 2018
ab53c91
separate dev check
wherestheguac Apr 21, 2018
c500f24
add stack to test
wherestheguac Apr 22, 2018
af05d8e
more efficient
wherestheguac Apr 22, 2018
dd0ea94
remove unused function
wherestheguac Apr 22, 2018
c419075
prettier
wherestheguac Apr 22, 2018
79ea1b5
const to top
wherestheguac Apr 22, 2018
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15 changes: 15 additions & 0 deletions packages/react-reconciler/src/ReactFiberBeginWork.js
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ import type {NewContext} from './ReactFiberNewContext';
import type {HydrationContext} from './ReactFiberHydrationContext';
import type {FiberRoot} from './ReactFiberRoot';
import type {ExpirationTime} from './ReactFiberExpirationTime';
import checkPropTypes from 'prop-types/checkPropTypes';

import {
IndeterminateComponent,
Expand Down Expand Up @@ -885,6 +886,20 @@ export default function<T, P, I, TI, HI, PI, C, CC, CX, PL>(
const newValue = newProps.value;
workInProgress.memoizedProps = newProps;

if (__DEV__) {
const providerPropTypes = workInProgress.type.propTypes;
const {getCurrentFiberStackAddendum} = ReactDebugCurrentFiber;
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Please move this right after imports so we only do this once. You can check how we do this in other files.

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

let changedBits: number;
if (oldProps === null) {
// Initial render
Expand Down
22 changes: 22 additions & 0 deletions packages/react/src/__tests__/ReactContextValidator-test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -225,6 +225,28 @@ describe('ReactContextValidator', () => {
ReactTestUtils.renderIntoDocument(<Component testContext={{foo: 'foo'}} />);
});

it('warns of incorrect prop types on context provider', () => {
const TestContext = React.createContext();

TestContext.Provider.propTypes = {
value: PropTypes.string.isRequired,
};

ReactTestUtils.renderIntoDocument(<TestContext.Provider value="val" />);

class Component extends React.Component {
render() {
return <TestContext.Provider />;
}
}

expect(() => ReactTestUtils.renderIntoDocument(<Component />)).toWarnDev(
'Warning: Failed prop type: The prop `value` is marked as required in ' +
'`Context.Provider`, but its value is `undefined`.\n' +
' in Component (at **)',
);
});

// TODO (bvaughn) Remove this test and the associated behavior in the future.
// It has only been added in Fiber to match the (unintentional) behavior in Stack.
it('should warn (but not error) if getChildContext method is missing', () => {
Expand Down