41 lines
1.1 KiB
JavaScript
41 lines
1.1 KiB
JavaScript
|
const { addSideEffect } = require('@babel/helper-module-imports')
|
||
|
|
|
||
|
|
// slightly modifiled from @babel/preset-env/src/utils
|
||
|
|
// use an absolute path for core-js modules, to fix conflicts of different core-js versions
|
||
|
|
function getModulePath (mod, useAbsolutePath) {
|
||
|
|
const modPath =
|
||
|
|
mod === 'regenerator-runtime'
|
||
|
|
? 'regenerator-runtime/runtime'
|
||
|
|
: `core-js/modules/${mod}`
|
||
|
|
return useAbsolutePath ? require.resolve(modPath) : modPath
|
||
|
|
}
|
||
|
|
|
||
|
|
function createImport (path, mod, useAbsolutePath) {
|
||
|
|
return addSideEffect(path, getModulePath(mod, useAbsolutePath))
|
||
|
|
}
|
||
|
|
|
||
|
|
// add polyfill imports to the first file encountered.
|
||
|
|
module.exports = (
|
||
|
|
{ types },
|
||
|
|
{ polyfills, entryFiles = [], useAbsolutePath }
|
||
|
|
) => {
|
||
|
|
return {
|
||
|
|
name: 'vue-cli-inject-polyfills',
|
||
|
|
visitor: {
|
||
|
|
Program (path, state) {
|
||
|
|
if (!entryFiles.includes(state.filename)) {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
// imports are injected in reverse order
|
||
|
|
polyfills
|
||
|
|
.slice()
|
||
|
|
.reverse()
|
||
|
|
.forEach(p => {
|
||
|
|
createImport(path, p, useAbsolutePath)
|
||
|
|
})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|