Add extra check for undefined variable in no-danger-with-children

yannickcr · yannickcr · commit 23932361dd82 · 2017-07-06T00:24:06.000+02:00
diff --git a/lib/rules/no-danger-with-children.js b/lib/rules/no-danger-with-children.js
@@ -38,7 +38,7 @@ module.exports = {
           return prop.key.name === propName;
         } else if (prop.type === 'ExperimentalSpreadProperty') {
           const variable = findSpreadVariable(prop.argument.name);
-          if (variable && variable.defs[0].node.init) {
+          if (variable && variable.defs.length && variable.defs[0].node.init) {
             return findObjectProp(variable.defs[0].node.init, propName);
           }
         }

Original file line number	Diff line number	Diff line change
`@@ -38,7 +38,7 @@ module.exports = {`
`38`	`38`	`return prop.key.name === propName;`
`39`	`39`	`} else if (prop.type === 'ExperimentalSpreadProperty') {`
`40`	`40`	`const variable = findSpreadVariable(prop.argument.name);`
`41`		`- if (variable && variable.defs[0].node.init) {`
	`41`	`+ if (variable && variable.defs.length && variable.defs[0].node.init) {`
`42`	`42`	`return findObjectProp(variable.defs[0].node.init, propName);`
`43`	`43`	`}`
`44`	`44`	`}`