fix: null-pointer handle with parentNode.removeChild

fritx · fritx · commit 42bbc03a6e3a · 2020-05-28T11:27:15.000+08:00
diff --git a/src/playground/codeTransform.ts b/src/playground/codeTransform.ts
@@ -64,7 +64,7 @@ export let wrapVue = (code: string) => {
     new Vue(App).$mount(curr)
     {
       let a0 = assetsNodeOutdated
-      a0.parentNode.removeChild(a0)
+      if (a0.parentNode) a0.parentNode.removeChild(a0)
     }
   } catch (err) {
     console.error(['displayError', err])
@@ -137,7 +137,7 @@ export let wrapMd = (code: string) => {
 
     {
       let a0 = assetsNodeOutdated
-      a0.parentNode.removeChild(a0)
+      if (a0.parentNode) a0.parentNode.removeChild(a0)
     }
   } catch (err) {
     console.error(['displayError', err])
@@ -209,7 +209,7 @@ export let wrapPy = (code: string) => {
     ]), mountNode)
     {
       let a0 = assetsNodeOutdated
-      a0.parentNode.removeChild(a0)
+      if (a0.parentNode) a0.parentNode.removeChild(a0)
     }
   } catch (err) {
     console.error(['displayError', err])
@@ -256,7 +256,7 @@ export let wrapJs = (code: string) => {
     }
     {
       let a0 = assetsNodeOutdated
-      a0.parentNode.removeChild(a0)
+      if (a0.parentNode) a0.parentNode.removeChild(a0)
     }
   } catch (err) {
     console.error(['displayError', err])

Original file line number	Diff line number	Diff line change
`@@ -64,7 +64,7 @@ export let wrapVue = (code: string) => {`
`64`	`64`	`new Vue(App).$mount(curr)`
`65`	`65`	`{`
`66`	`66`	`let a0 = assetsNodeOutdated`
`67`		`- a0.parentNode.removeChild(a0)`
	`67`	`+ if (a0.parentNode) a0.parentNode.removeChild(a0)`
`68`	`68`	`}`
`69`	`69`	`} catch (err) {`
`70`	`70`	`console.error(['displayError', err])`
`@@ -137,7 +137,7 @@ export let wrapMd = (code: string) => {`
`137`	`137`
`138`	`138`	`{`
`139`	`139`	`let a0 = assetsNodeOutdated`
`140`		`- a0.parentNode.removeChild(a0)`
	`140`	`+ if (a0.parentNode) a0.parentNode.removeChild(a0)`
`141`	`141`	`}`
`142`	`142`	`} catch (err) {`
`143`	`143`	`console.error(['displayError', err])`
`@@ -209,7 +209,7 @@ export let wrapPy = (code: string) => {`
`209`	`209`	`]), mountNode)`
`210`	`210`	`{`
`211`	`211`	`let a0 = assetsNodeOutdated`
`212`		`- a0.parentNode.removeChild(a0)`
	`212`	`+ if (a0.parentNode) a0.parentNode.removeChild(a0)`
`213`	`213`	`}`
`214`	`214`	`} catch (err) {`
`215`	`215`	`console.error(['displayError', err])`
`@@ -256,7 +256,7 @@ export let wrapJs = (code: string) => {`
`256`	`256`	`}`
`257`	`257`	`{`
`258`	`258`	`let a0 = assetsNodeOutdated`
`259`		`- a0.parentNode.removeChild(a0)`
	`259`	`+ if (a0.parentNode) a0.parentNode.removeChild(a0)`
`260`	`260`	`}`
`261`	`261`	`} catch (err) {`
`262`	`262`	`console.error(['displayError', err])`