Commits on Jan 12, 2023

1. fix(treeshaking): allowing treeshaking in terser …

   The code currently generated by this plugin looks something like the following when building a library:
   
   src/index.js
   ```js
   export {default as Foo} from './component.vue';
   ```
   
   ```js
   var __component__ = /*#__PURE__*/ normalizeComponent(...)
   var Foo = __component__.exports
   ```
   
   In the event you aren't actually using the Foo export, this code is unable to be dropped because Terser assumes that property access (__component__.exports) is not side-effect free and as a result it decides it can not drop it, and thus it can't drop the rest of the component code.
   
   To work around this, I have wrapped the `__component__.exports` statement in a function so that we can mark the function invokation as `#__PURE__` and thus allow for unused components to be dropped fully.
   
   The resulting code looks like:
   ```js
   var __component__ = /*#__PURE__*/ normalizeComponent(...)
   var Foo = /*#__PURE__*/  getExports(__component__)
   ```

   Adam Hines committed Jan 12, 2023
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