fix: better error message for non-existent polyfill names (#5543)

haoqunjiang · web-flow · commit cc38420e392f · 2020-06-24T13:40:39.000+08:00
Fixes #3578
diff --git a/packages/@vue/babel-preset-app/index.js b/packages/@vue/babel-preset-app/index.js
@@ -81,7 +81,13 @@ function getPolyfills (targets, includes) {
   }
 
   const compatData = require('core-js-compat').data
-  return includes.filter(item => isRequired(item, targets, { compatData }))
+  return includes.filter(item => {
+    if (!compatData[item]) {
+      throw new Error(`Cannot find polyfill ${item}, please refer to 'core-js-compat' for a complete list of available modules`)
+    }
+
+    return isRequired(item, targets, { compatData })
+  })
 }
 
 module.exports = (context, options = {}) => {

Original file line number	Diff line number	Diff line change
`@@ -81,7 +81,13 @@ function getPolyfills (targets, includes) {`
`81`	`81`	`}`
`82`	`82`
`83`	`83`	`const compatData = require('core-js-compat').data`
`84`		`- return includes.filter(item => isRequired(item, targets, { compatData }))`
	`84`	`+ return includes.filter(item => {`
	`85`	`+ if (!compatData[item]) {`
	`86`	+ throw new Error(`Cannot find polyfill ${item}, please refer to 'core-js-compat' for a complete list of available modules`)
	`87`	`+ }`
	`88`	`+`
	`89`	`+ return isRequired(item, targets, { compatData })`
	`90`	`+ })`
`85`	`91`	`}`
`86`	`92`
`87`	`93`	`module.exports = (context, options = {}) => {`