@cocos/babel-plugin-dynamic-import-vars

Inspired from @rollup/plugin-dynamic-import-vars.

This plugin transforms for example:

``js
import(./${lang}.js)
`

into

`js
((specifier) => {
switch (specifier) {
case './zh-cn.js': return import('./zh-cn.js');
case './en-us.js': return import('./en-us.js');
default: return import(specifier);
}
})(./${lang}.js)
`

given './${lang}.js' can be statically resolved as './zh-cn.js', './en-us.js' etc.

Rules

Similar with @rollup/plugin-dynamic-import-vars except that:

- If none of the preset specifiers matches, the code won't throw but still fallback to run.

- Supplied an options to resolve .js to others for example .ts`.