fix: generate sourcemap

unplugin · Aug 24, 2021 · 0f8c3bf · 0f8c3bf
1 parent ade6f9f
commit 0f8c3bf
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Showing 4 changed files with 14 additions and 4 deletions.
diff --git a/package.json b/package.json
@@ -71,6 +71,7 @@
   "dependencies": {
     "@antfu/utils": "^0.2.4",
     "@rollup/pluginutils": "^4.1.1",
+    "magic-string": "^0.25.7",
     "unplugin": "^0.0.8"
   },
   "devDependencies": {

diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
diff --git a/src/core/transform.ts b/src/core/transform.ts
@@ -1,3 +1,4 @@
+import MagicString from 'magic-string'
 import { ImportInfo, TransformOptions } from '../types'
 
 const excludeRegex = [
@@ -41,5 +42,13 @@ export function transform(code: string, id: string, { matchRE, imports }: Transf
     })
     .join('')
 
-  return importStatements + code
+  const s = new MagicString(code)
+  s.prependLeft(0, importStatements)
+
+  return {
+    code: s.toString(),
+    get map() {
+      return s.generateMap()
+    },
+  }
 }
diff --git a/test/transform.test.ts b/test/transform.test.ts
@@ -28,7 +28,7 @@ describe('transform', () => {
     for (const file of files) {
       it(file, async() => {
         const fixture = await fs.readFile(resolve(root, file), 'utf-8')
-        expect(transform(fixture, file, options)).toMatchSnapshot()
+        expect(transform(fixture, file, options).code).toMatchSnapshot()
       })
     }
   })