fix: dual entry

test/integration/dual-entry/index.test.ts

@@ -0,0 +1,20 @@
+import fs from 'fs'
+import { assertFilesContent, createIntegrationTest } from '../utils'
+
+describe('integration tsconfig-override', () => {
+  it('should not generate js types paths if not specified', async () => {
+    await createIntegrationTest(
+      {
+        directory: __dirname,
+      },
+      async ({ dir }) => {
+        assertFilesContent(dir, {
+          './dist/subpath/nested.js': 'subpath/nested',
+          './dist/subpath/nested.cjs': 'subpath/nested',
+        })
+        const subpathTypes = await import(`${dir}/dist/index.js`)
+        expect(fs.existsSync(subpathTypes)).toBe(false)
+      },
+    )
+  })
+})

test/integration/dual-entry/package.json

@@ -0,0 +1,10 @@
+{
+  "name": "undefined-types-paths",
+  "type": "module",
+  "exports": {
+    "./a": {
+      "workerd": "./dist/a.workerd.js",
+      "import": "./dist/a.js"
+    }
+  }
+}

test/integration/dual-entry/src/a.ts

@@ -0,0 +1 @@
+export { internal } from './a/shared'

test/integration/dual-entry/src/a.workerd.ts

@@ -0,0 +1 @@
+export { internal } from './a/shared'

test/integration/dual-entry/src/a/shared.ts

@@ -0,0 +1 @@
+export const internal = 'a'