Forward the correct error if there is an esm syntax error (#155)

lib/worker.js

@@ -48,7 +48,11 @@ async function start () {
  // When bundled with pkg, an undefined error is thrown when called with realImport
  // When bundled with pkg and using node v20, an ERR_VM_DYNAMIC_IMPORT_CALLBACK_MISSING error is thrown when called with realImport
  // More info at: https:/pinojs/thread-stream/issues/143
- worker = realRequire(decodeURIComponent(filename.replace(process.platform === 'win32' ? 'file:///' : 'file://', '')))
+ try {
+ worker = realRequire(decodeURIComponent(filename.replace(process.platform === 'win32' ? 'file:///' : 'file://', '')))
+ } catch {
+ throw error
+ }
  } else {
  throw error
  }

package.json

@@ -34,7 +34,8 @@
  },
  "standard": {
  "ignore": [
- "test/ts/**/*"
+ "test/ts/**/*",
+ "test/syntax-error.mjs"
  ]
  },
  "repository": {

test/base.test.js

@@ -271,3 +271,15 @@ test('destroy does not error', function (t) {
  t.doesNotThrow(() => stream.end())
  })
 })
+
+test('syntax error', function (t) {
+ t.plan(1)
+
+ const stream = new ThreadStream({
+ filename: join(__dirname, 'syntax-error.mjs')
+ })
+
+ stream.on('error', (err) => {
+ t.equal(err.message, 'Unexpected end of input')
+ })
+})

test/syntax-error.mjs

@@ -0,0 +1,2 @@
+// this is a syntax error
+import