Registry / devops / ts-swc-rollup-plugin

ts-swc-rollup-plugin

library2.4.0jsnpmunverified

A Rollup plugin that integrates swc (Speedy Web Compiler) for fast TypeScript/JavaScript transpilation leveraging ts-swc-transform. Current stable version is 2.4.0, with a maintenance release cadence. Key differentiators: performance-oriented alternative to @rollup/plugin-typescript or @rollup/plugin-babel; supports tsconfig resolution via get-tsconfig; ships TypeScript types; requires Node >=16. Suitable for bundling workflows that prioritize speed over full type-checking.

devops

npm install ts-swc-rollup-plugin

github ↗package ↗

INSTALL

IMPORT

SIG · TS-SWC-ROLLUP-PLUG

ts-swc-rollup-plugin

devopsjavascriptv2.4.0

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–223 runs

build_error

glibc

node 18–223 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ import swc from 'ts-swc-rollup-plugin'

✗ const swc = require('ts-swc-rollup-plugin')

Package is ESM-only since v2. Default export is the plugin function.

RollupOptions.plugins

✓ export default { plugins: [swc({ tsconfig: 'tsconfig.json' })] }

✗ export default { plugins: [swc({ tsconfig: 'tsconfig.json' })] }

No type import needed; Rollup automatically merges plugin types. Plugin options object is optional.

type PluginOptions

✓ import type { PluginOptions } from 'ts-swc-rollup-plugin'

✗ import { PluginOptions } from 'ts-swc-rollup-plugin'

Export is a type only; value import is incorrect and will cause runtime error in some bundlers.

Minimal Rollup config using ts-swc-rollup-plugin to transpile TypeScript entry point, with optional SWC_ENV environment variable.

// rollup.config.js import swc from 'ts-swc-rollup-plugin'; process.env.SWC_ENV ??= process.env.NODE_ENV ?? 'development'; export default { input: 'src/index.ts', output: { file: 'dist/bundle.js', format: 'esm', }, plugins: [ swc({ // Optional: defaults shown cwd: process.cwd(), tsconfig: 'tsconfig.json', }), ], };

Debug

Known issues

breakingVersion 2.x requires Node >=16 and is ESM-only. CommonJS require() will fail.

fix

Update to Node >=16 and use import syntax. For CJS projects, consider dynamic import or use v1.x.

affects: >=2.0.0

deprecatedPassing tsconfig as a string path is deprecated in favor of using a resolved config object from get-tsconfig.

fix

Use getTsconfig() from get-tsconfig package: swc({ tsconfig: getTsconfig() }).

affects: >=2.0.0

gotchaPlugin does not perform type checking; swc is a transpiler only. Use tsc --noEmit separately for type safety.

fix

Add a separate tsc --noEmit script to your build pipeline.

affects: >=1.0.0

gotchaOptions object is mutable; do not reuse the same options object across multiple Rollup builds.

fix

Create a fresh options object per build configuration.

affects: >=1.0.0

Errors

Common errors & fixes

Cannot find module 'ts-swc-rollup-plugin' or its corresponding type declarations.

Missing package install or incorrect TypeScript settings (e.g., no moduleResolution: 'node' or 'node16').

fix

npm install ts-swc-rollup-plugin --save-dev and ensure tsconfig.json has 'moduleResolution': 'node' or 'node16' (>= v2).

Error: swc is not a function

Using CommonJS require() with v2+ which is ESM-only.

fix

Use import swc from 'ts-swc-rollup-plugin' in an ES module context (type: 'module' in package.json or .mjs extension).

TypeError: Cannot read properties of undefined (reading 'transform')

Invalid or missing tsconfig causing ts-swc-transform to fail initialization.

fix

Ensure tsconfig.json exists and is valid JSON. Pass explicit tsconfig path: swc({ tsconfig: 'tsconfig.json' }).

Upgrade

Version history

2.4.0latest on npm

Audit

Dependencies

ts-swc-transformrequiredCore transform logic underlying the plugin

get-tsconfigoptionalUsed to resolve and parse tsconfig files; optional if passing tsconfig object directly

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/kmalakoff/ts-swc-rollup-plugin ↗

packagehttps://www.npmjs.com/package/ts-swc-rollup-plugin ↗