fix(router module): safely check parent tagname. fixes #542 (#550)

mylmz10 · rigor789 · commit 1cc8142222c2 · 2019-09-11T10:12:27.000+02:00
diff --git a/platform/nativescript/compiler/modules/router.js b/platform/nativescript/compiler/modules/router.js
@@ -3,7 +3,11 @@ import { addAttr } from 'compiler/helpers'
 
 function preTransformNode(el) {
   if (el.tag !== 'router-view') return
-  if (normalizeElementName(el.parent.tag) === 'nativeframe') {
+  if (
+    el.parent &&
+    el.parent.tag &&
+    normalizeElementName(el.parent.tag) === 'nativeframe'
+  ) {
     addAttr(el.parent, 'hasRouterView', 'true')
   }
 }

Original file line number	Diff line number	Diff line change
`@@ -3,7 +3,11 @@ import { addAttr } from 'compiler/helpers'`
`3`	`3`
`4`	`4`	`function preTransformNode(el) {`
`5`	`5`	`if (el.tag !== 'router-view') return`
`6`		`- if (normalizeElementName(el.parent.tag) === 'nativeframe') {`
	`6`	`+ if (`
	`7`	`+ el.parent &&`
	`8`	`+ el.parent.tag &&`
	`9`	`+ normalizeElementName(el.parent.tag) === 'nativeframe'`
	`10`	`+ ) {`
`7`	`11`	`addAttr(el.parent, 'hasRouterView', 'true')`
`8`	`12`	`}`
`9`	`13`	`}`