feat: add swc (@swc-node/register) support out of box (#106)

close #102

Author: JounQin

.changeset/clean-walls-trade.md

@@ -0,0 +1,5 @@
+---
+"synckit": patch
+---
+
+feat: add `swc` (`@swc-node/register`) support out of box

README.md

@@ -25,6 +25,7 @@ Perform async work synchronously in Node.js using `worker_threads` with first-cl
     - [`ts-node`](#ts-node)
     - [`esbuild-register`](#esbuild-register)
     - [`esbuild-runner`](#esbuild-runner)
+    - [`swc`](#swc)
     - [`tsx`](#tsx)
 - [Benchmark](#benchmark)
 - [Sponsors](#sponsors)
@@ -83,7 +84,7 @@ You must make sure, the `result` is serializable by [`Structured Clone Algorithm
 1. `SYNCKIT_BUFFER_SIZE`: `bufferSize` to create `SharedArrayBuffer` for `worker_threads` (default as `1024`)
 2. `SYNCKIT_TIMEOUT`: `timeout` for performing the async job (no default)
 3. `SYNCKIT_EXEC_ARGV`: List of node CLI options passed to the worker, split with comma `,`. (default as `[]`), see also [`node` docs](https://nodejs.org/api/worker_threads.html)
-4. `SYNCKIT_TS_RUNNER`: Which TypeScript runner to be used, it could be very useful for development, could be `'ts-node' | 'esbuild-register' | 'esbuild-runner' | 'tsx'`, `'ts-node'` is used by default, make sure you have installed them already
+4. `SYNCKIT_TS_RUNNER`: Which TypeScript runner to be used, it could be very useful for development, could be `'ts-node' | 'esbuild-register' | 'esbuild-runner' | 'swc' | 'tsx'`, `'ts-node'` is used by default, make sure you have installed them already
 
 ### TypeScript
 
@@ -97,15 +98,19 @@ If you want to integrate with [tsconfig-paths](https://www.npmjs.com/package/tsc
 
 #### `esbuild-register`
 
-Please view <https://github.com/egoist/esbuild-register> for its document
+Please view [`esbuild-register`][] for its document
 
 #### `esbuild-runner`
 
-Please view <https://github.com/folke/esbuild-runner> for its document
+Please view [`esbuild-runner`][] for its document
+
+#### `swc`
+
+Please view [`@swc-node/register`][] for its document
 
 #### `tsx`
 
-Please view <https://github.com/esbuild-kit/tsx> for its document
+Please view [`tsx`][] for its document
 
 ## Benchmark
 
@@ -137,6 +142,10 @@ Detailed changes for each release are documented in [CHANGELOG.md](./CHANGELOG.m
 
 [MIT][] © [JounQin][]@[1stG.me][]
 
+[`esbuild-register`]: https://github.com/egoist/esbuild-register
+[`esbuild-runner`]: https://github.com/folke/esbuild-runner
+[`@swc-node/register`]: https://github.com/swc-project/swc-node/tree/master/packages/register
+[`tsx`]: https://github.com/esbuild-kit/tsx
 [1stg.me]: https://www.1stg.me
 [jounqin]: https://github.com/JounQin
 [mit]: http://opensource.org/licenses/MIT

package.json

@@ -91,6 +91,7 @@
     "@1stg/lib-config": "^9.0.2",
     "@changesets/changelog-github": "^0.4.6",
     "@changesets/cli": "^2.23.2",
+    "@swc-node/register": "^1.5.1",
     "@types/jest": "^28.1.5",
     "@types/node": "^18.0.4",
     "deasync": "^0.1.27",

src/index.ts

@@ -32,6 +32,8 @@ export const TsRunner = {
   EsbuildRegister: 'esbuild-register',
   // https://github.com/folke/esbuild-runner
   EsbuildRunner: 'esbuild-runner',
+  // https://github.com/swc-project/swc-node/tree/master/packages/register
+  SWC: 'swc',
   // https://github.com/esbuild-kit/tsx
   TSX: 'tsx',
 } as const
@@ -207,6 +209,12 @@ const setupTsRunner = (
         }
         break
       }
+      case TsRunner.SWC: {
+        if (!execArgv.includes('-r')) {
+          execArgv = ['-r', `@${TsRunner.SWC}-node/register`, ...execArgv]
+        }
+        break
+      }
       case TsRunner.TSX: {
         if (!execArgv.includes('--loader')) {
           execArgv = ['--loader', TsRunner.TSX, ...execArgv]
@@ -282,6 +290,8 @@ function startWorkerThread<R, T extends AnyAsyncFn<R>>(
           TsRunner.EsbuildRegister,
           // https://github.com/folke/esbuild-runner/issues/67
           TsRunner.EsbuildRunner,
+          // https://github.com/swc-project/swc-node/issues/667
+          TsRunner.SWC,
           .../* istanbul ignore next */ (isTsxSupported ? [] : [TsRunner.TSX]),
         ] as TsRunner[]
       ).includes(tsRunner)

test/esbuild-register.worker.mjs

@@ -13,75 +13,111 @@ beforeEach(() => {
   jest.resetModules()
 })
 
-it(TsRunner.EsbuildRegister, async () => {
+const workerJsPath = path.resolve(_dirname, 'worker-js')
+const workerMjsPath = path.resolve(_dirname, 'worker.mjs')
+const workerMtsPath = path.resolve(_dirname, 'worker-mts.mjs')
+
+test(TsRunner.EsbuildRegister, async () => {
   const { createSyncFn } = await import('synckit')
-  const syncFn = createSyncFn<AsyncWorkerFn>(
-    path.resolve(_dirname, 'esbuild-register.worker.mjs'),
-    {
-      tsRunner: TsRunner.EsbuildRegister,
-    },
-  )
+
+  let syncFn = createSyncFn<AsyncWorkerFn>(workerJsPath, {
+    tsRunner: TsRunner.EsbuildRegister,
+  })
+  expect(syncFn(1)).toBe(1)
+  expect(syncFn(2)).toBe(2)
+  expect(syncFn(5)).toBe(5)
+
+  syncFn = createSyncFn<AsyncWorkerFn>(workerMjsPath, {
+    tsRunner: TsRunner.EsbuildRegister,
+  })
   expect(syncFn(1)).toBe(1)
   expect(syncFn(2)).toBe(2)
   expect(syncFn(5)).toBe(5)
 
   expect(() =>
-    createSyncFn<AsyncWorkerFn>(
-      path.resolve(_dirname, 'esbuild-register-error.worker.mjs'),
-      {
-        tsRunner: TsRunner.EsbuildRegister,
-      },
-    ),
+    createSyncFn<AsyncWorkerFn>(workerMtsPath, {
+      tsRunner: TsRunner.EsbuildRegister,
+    }),
   ).toThrowError('esbuild-register is not supported for .mts files yet')
 })
 
-it(TsRunner.EsbuildRunner, async () => {
+test(TsRunner.EsbuildRunner, async () => {
   const { createSyncFn } = await import('synckit')
-  const syncFn = createSyncFn<AsyncWorkerFn>(
-    path.resolve(_dirname, 'esbuild-runner.worker.mjs'),
-    {
-      tsRunner: TsRunner.EsbuildRunner,
-    },
-  )
+
+  let syncFn = createSyncFn<AsyncWorkerFn>(workerJsPath, {
+    tsRunner: TsRunner.EsbuildRunner,
+  })
+  expect(syncFn(1)).toBe(1)
+  expect(syncFn(2)).toBe(2)
+  expect(syncFn(5)).toBe(5)
+
+  syncFn = createSyncFn<AsyncWorkerFn>(workerMjsPath, {
+    tsRunner: TsRunner.EsbuildRunner,
+  })
   expect(syncFn(1)).toBe(1)
   expect(syncFn(2)).toBe(2)
   expect(syncFn(5)).toBe(5)
 
   expect(() =>
-    createSyncFn<AsyncWorkerFn>(
-      path.resolve(_dirname, 'esbuild-runner-error.worker.mjs'),
-      {
-        tsRunner: TsRunner.EsbuildRunner,
-      },
-    ),
+    createSyncFn<AsyncWorkerFn>(workerMtsPath, {
+      tsRunner: TsRunner.EsbuildRunner,
+    }),
   ).toThrowError('esbuild-runner is not supported for .mts files yet')
 })
 
-it(TsRunner.TSX, async () => {
+test(TsRunner.SWC, async () => {
   const { createSyncFn } = await import('synckit')
 
+  let syncFn = createSyncFn<AsyncWorkerFn>(workerJsPath, {
+    tsRunner: TsRunner.SWC,
+  })
+  expect(syncFn(1)).toBe(1)
+  expect(syncFn(2)).toBe(2)
+  expect(syncFn(5)).toBe(5)
+
+  syncFn = createSyncFn<AsyncWorkerFn>(workerMjsPath, {
+    tsRunner: TsRunner.SWC,
+  })
+  expect(syncFn(1)).toBe(1)
+  expect(syncFn(2)).toBe(2)
+  expect(syncFn(5)).toBe(5)
+
+  expect(() =>
+    createSyncFn<AsyncWorkerFn>(workerMtsPath, {
+      tsRunner: TsRunner.SWC,
+    }),
+  ).toThrowError('swc is not supported for .mts files yet')
+})
+
+test(TsRunner.TSX, async () => {
+  const { createSyncFn } = await import('synckit')
+
+  let syncFn = createSyncFn<AsyncWorkerFn>(workerJsPath, {
+    tsRunner: TsRunner.TSX,
+  })
+  expect(syncFn(1)).toBe(1)
+  expect(syncFn(2)).toBe(2)
+  expect(syncFn(5)).toBe(5)
+
   if (Number.parseFloat(process.versions.node) < MTS_SUPPORTED_NODE_VERSION) {
     // eslint-disable-next-line jest/no-conditional-expect
     expect(() =>
-      createSyncFn<AsyncWorkerFn>(path.resolve(_dirname, 'tsx.worker.mjs'), {
+      createSyncFn<AsyncWorkerFn>(workerMtsPath, {
         tsRunner: TsRunner.TSX,
       }),
     ).toThrowError('tsx is not supported for .mts files yet')
     return
   }
 
-  const syncFn = createSyncFn<AsyncWorkerFn>(
-    path.resolve(_dirname, 'tsx.worker.mjs'),
-    {
-      tsRunner: TsRunner.TSX,
-    },
-  )
+  syncFn = createSyncFn<AsyncWorkerFn>(workerMjsPath, {
+    tsRunner: TsRunner.TSX,
+  })
   expect(syncFn(1)).toBe(1)
   expect(syncFn(2)).toBe(2)
   expect(syncFn(5)).toBe(5)
 })
 
-it('unknown ts runner', async () => {
+test('unknown ts runner', async () => {
   const { createSyncFn } = await import('synckit')
 
   expect(() =>