Accessing external dependencies from a global variable

[tim-hilt]

Hi there! We'd like to migrate our existing Rollup-based builds to swc. One part of our application assigns js modules as variables to the window-object:

import * as React from "react";

window["React"] = React;

We had to tell rollup how to find these and that react shouldn't be bundled:

export default ({
  output: {
    intro: "const global = window", // Where are the global vars?
    external: ["react"], // What shouldn't be bundled?
    globals: {
      react: "React", // How can the react-imports be resolved?
    },
  },
});

Is it possible to tell swc that some dependencies should be found in global variables? Is there an alternative approach that I didn't consider?