fix: return early if nothing detected, close #9

unplugin · Aug 25, 2021 · a941fd0 · a941fd0
1 parent d9caa35
commit a941fd0
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Showing 3 changed files with 6 additions and 1 deletion.
diff --git a/src/core/transform.ts b/src/core/transform.ts
@@ -20,6 +20,10 @@ export function transform(code: string, id: string, { matchRE, imports }: Transf
       .forEach(i => matched.delete(i.trim()))
   }
 
+  // nothing matched, skip
+  if (!matched.size)
+    return null
+
   const modules: Record<string, ImportInfo[]> = {}
 
   // group by module name

diff --git a/test/fixtures/non-target.js b/test/fixtures/non-target.js
@@ -0,0 +1 @@
+useNonTarget()
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).code).toMatchSnapshot()
+        expect(transform(fixture, file, options)?.code ?? fixture).toMatchSnapshot()
       })
     }
   })