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unplugin-isolated-decl

v0.10.2

Published

A blazing-fast tool for generating isolated declarations.

Downloads

7,476

Readme

unplugin-isolated-decl npm jsr

Unit Test

⚡️ A blazing-fast tool for generating isolated declarations.

Features

  • 🚀 Fast: Generates .d.ts files significantly faster than tsc.
  • 🎨 Transformer: Support Oxc, SWC, and TypeScript transformer.
  • 📦 Zero Config: No configuration required, works out of the box.
  • Bundler Support: Works with Vite, Rollup, esbuild and Farm. (PR of Webpack/Rspack support is welcome)

Installation

# npm
npm i -D unplugin-isolated-decl

# jsr
npx jsr add -D @unplugin/isolated-decl

Usage

// vite.config.ts
import UnpluginIsolatedDecl from 'unplugin-isolated-decl/vite'

export default defineConfig({
  plugins: [UnpluginIsolatedDecl()],
})

// rollup.config.js
import UnpluginIsolatedDecl from 'unplugin-isolated-decl/rollup'

export default {
  plugins: [UnpluginIsolatedDecl()],
}

// rolldown.config.js
import UnpluginIsolatedDecl from 'unplugin-isolated-decl/rolldown'

export default {
  plugins: [UnpluginIsolatedDecl()],
}

// esbuild.config.js
import { build } from 'esbuild'

build({
  plugins: [require('unplugin-isolated-decl/esbuild')()],
})

// farm.config.ts
import UnpluginIsolatedDecl from 'unplugin-isolated-decl/farm'

export default defineConfig({
  plugins: [UnpluginIsolatedDecl()],
})

Options

export interface Options {
  include?: FilterPattern
  exclude?: FilterPattern
  enforce?: 'pre' | 'post' | undefined
  /**
   * You need to install one of the supported transformers yourself.
   * oxc: @oxc/transformer
   * swc: @swc/core
   * typescript: typescript
   *
   * @default typescript
   */
  transformer?: 'oxc' | 'swc' | 'typescript'
  /**
   * Whether to generate declaration source maps.
   *
   * Supported by `typescript` and `oxc` transformer only.
   *
   * @link https://www.typescriptlang.org/tsconfig/#declarationMap
   */
  sourceMap?: boolean

  /** Only for typescript transformer */
  transformOptions?: TranspileOptions
  ignoreErrors?: boolean
  /** An extra directory layer for output files. */
  extraOutdir?: string

  rewriteImports?: (
    id: string,
    importer: string,
  ) => string | void | null | undefined
}

rewriteImports

Rewrite imports in .d.ts files. (esbuild support is not available)

Here is an example of rewriting imports on Rollup:

// rollup.config.js
import alias from '@rollup/plugin-alias'

export default {
  // ...
  plugins: [
    alias({ entries: [{ find: '~', replacement: '.' }] }),
    UnpluginIsolatedDecl({
      rewriteImports(id, importer) {
        if (id[0] === '~') return `.${id.slice(1)}`
      },
    }),
    // ...
  ],
}

patchCjsDefaultExport

Patch export default in .d.cts to export =


[!NOTE] For the exhaustive set of options check options

Sponsors

License

MIT License © 2024-PRESENT 三咲智子