Cannot read property 'filter' of undefined (require-default-props) #1043
Description
Hi!
Just updated my packages and now I get this error from eslint:
Cannot read property 'filter' of undefined TypeError: Cannot read property 'filter' of undefined at getPropTypesFromTypeAnnotation (/$PROJECT$/node_modules/eslint-plugin-react/lib/rules/require-default-props.js:167:29) at handlePropTypeAnnotationClassProperty (/$PROJECT$/node_modules/eslint-plugin-react/lib/rules/require-default-props.js:287:42) at Object.ClassProperty (/$PROJECT$/node_modules/eslint-plugin-react/lib/rules/require-default-props.js:458:11) at EventEmitter.updatedRuleInstructions.(anonymous function) (/$PROJECT$/node_modules/eslint-plugin-react/lib/util/Components.js:581:75) at emitOne (events.js:101:20) at EventEmitter.emit (events.js:188:7) at NodeEventGenerator.enterNode (/$PROJECT$/node_modules/eslint/lib/util/node-event-generator.js:39:22) at CodePathAnalyzer.enterNode (/$PROJECT$/node_modules/eslint/lib/code-path-analysis/code-path-analyzer.js:607:23) at CommentEventGenerator.enterNode (/$PROJECT$/node_modules/eslint/lib/util/comment-event-generator.js:98:23) at Controller.enter (/$PROJECT$/node_modules/eslint/lib/eslint.js:928:36) My package.json looks something like:
{ "eslint": "3.14.0", "eslint-config-airbnb": "14.0.0", "eslint-loader": "1.6.1", "eslint-plugin-flowtype": "2.30.0", "eslint-plugin-import": "2.2.0", "eslint-plugin-jsx-a11y": "3.0.2", "eslint-plugin-react": "6.9.0" }I manage to fix the problem in react-default-props.js by checking if annotation.properties does exist inside of getPropTypesFromTypeAnnotation-function
function getPropTypesFromTypeAnnotation(node) { var properties; switch (node.typeAnnotation.type) { case 'GenericTypeAnnotation': var annotation = resolveGenericTypeAnnotation(node.typeAnnotation); properties = annotation && annotation.properties ? annotation.properties : []; ^^^^^^^^^^^^^^^^^^^^^^^^I could send a PR for this fix if you want. But I'm not familiar with the whole codebase to know if it would break somewhere else.