Will tsdown support the inject option?

[Groupguanfang]

Reference： esbuild-inject

This is really useful. It not only provides a shims as the official website of esbuild says, but also can actually be used to import some polyfills for entry.

[yyx990803]

Rolldown supports inject natively: https://rolldown.rs/reference/config-options#inject

We just need to document how to pass raw Rolldown options.

[Groupguanfang]

Speaking of this, what if I want to just import a package directly, like import 'foo'? I don’t seem to have seen this method in rolldown’s JSDoc.🤔

/**
 * Inject import statements on demand.
 *
 * ## Supported patterns
 * ```js
 * {
 *   // import { Promise } from 'es6-promise'
 *   Promise: ['es6-promise', 'Promise'],
 *
 *   // import { Promise as P } from 'es6-promise'
 *   P: ['es6-promise', 'Promise'],
 *
 *   // import $ from 'jquery'
 *   $: 'jquery',
 *
 *   // import * as fs from 'node:fs'
 *   fs: ['node:fs', '*'],
 *
 *   // Inject shims for property access pattern
 *   'Object.assign': path.resolve( 'src/helpers/object-assign.js' ),
 * }
 * ```
 */
inject?: Record<string, string | [string, string]>;

[sxzz]

Rolldown's inject is incompatible with and different from esbuild's, so I haven't moved the inject option to the top-level configuration.