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Fix false positive in no-unused-proptype #1218

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merged 3 commits into from May 24, 2017
Merged

Fix false positive in no-unused-proptype #1218

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cea8591
Add failing and working tests that were raised in the issue
jseminck May 19, 2017
f85ff44
Fix issue with overriding component usedPropTypes if the component al…
jseminck May 22, 2017
bf69820
Replace var with const for the new code that was added
May 23, 2017
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5 changes: 4 additions & 1 deletion lib/util/Components.js
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Expand Up @@ -99,9 +99,12 @@ Components.prototype.list = function() {
component = this.get(node);
}
if (component) {
usedPropTypes[this._getId(component.node)] = (this._list[i].usedPropTypes || []).filter(function(propType) {
const newUsedProps = (this._list[i].usedPropTypes || []).filter(function(propType) {
return !propType.node || propType.node.kind !== 'init';
});

const componentId = this._getId(component.node);
usedPropTypes[componentId] = (usedPropTypes[componentId] || []).concat(newUsedProps);
}
}
// Assign used props in not confident components to the parent component
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45 changes: 45 additions & 0 deletions tests/lib/rules/no-unused-prop-types.js
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Expand Up @@ -1439,6 +1439,51 @@ ruleTester.run('no-unused-prop-types', rule, {
'}'
].join('\n'),
parser: 'babel-eslint'
}, {
// The next two test cases are related to: https://github.com/yannickcr/eslint-plugin-react/issues/1183
code: [
'export default function SomeComponent(props) {',
' const callback = () => {',
' props.a(props.b);',
' };',
'',
' const anotherCallback = () => {};',
'',
' return (',
' <SomeOtherComponent',
' name={props.c}',
' callback={callback}',
' />',
' );',
'}',
'',
'SomeComponent.propTypes = {',
' a: React.PropTypes.func.isRequired,',
' b: React.PropTypes.string.isRequired,',
' c: React.PropTypes.string.isRequired,',
'};'
].join('\n')
}, {
code: [
'export default function SomeComponent(props) {',
' const callback = () => {',
' props.a(props.b);',
' };',
'',
' return (',
' <SomeOtherComponent',
' name={props.c}',
' callback={callback}',
' />',
' );',
'}',
'',
'SomeComponent.propTypes = {',
' a: React.PropTypes.func.isRequired,',
' b: React.PropTypes.string.isRequired,',
' c: React.PropTypes.string.isRequired,',
'};'
].join('\n')
}
],

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