Check for undefined before accessing node.type_annotations

tylerlaprade · web-flow · commit 3e02d917a29f · 2024-07-08T16:25:11.000-04:00
diff --git a/lib/rules/sort-prop-types.js b/lib/rules/sort-prop-types.js
@@ -230,7 +230,7 @@ module.exports = {
     }
 
     function handleFunctionComponent(node) {
-      const firstArg = node.params[0].typeAnnotation && node.params[0].typeAnnotation.typeAnnotation;
+      const firstArg = node.params && node.params.length > 0 && node.params[0].typeAnnotation && node.params[0].typeAnnotation.typeAnnotation;
       if (firstArg && firstArg.type === 'TSTypeReference') {
         const propType = typeAnnotations.get(firstArg.typeName.name)
           && typeAnnotations.get(firstArg.typeName.name)[0];

Original file line number	Diff line number	Diff line change
`@@ -230,7 +230,7 @@ module.exports = {`
`230`	`230`	`}`
`231`	`231`
`232`	`232`	`function handleFunctionComponent(node) {`
`233`		`- const firstArg = node.params[0].typeAnnotation && node.params[0].typeAnnotation.typeAnnotation;`
	`233`	`+ const firstArg = node.params && node.params.length > 0 && node.params[0].typeAnnotation && node.params[0].typeAnnotation.typeAnnotation;`
`234`	`234`	`if (firstArg && firstArg.type === 'TSTypeReference') {`
`235`	`235`	`const propType = typeAnnotations.get(firstArg.typeName.name)`
`236`	`236`	`&& typeAnnotations.get(firstArg.typeName.name)[0];`