From dce57bcaea2314e30f554ca9583ce8ab627f4baf Mon Sep 17 00:00:00 2001
From: Matthias Klass <matthias.klass@gmail.com>
Date: Tue, 27 Aug 2024 13:46:24 +0200
Subject: [PATCH] feat(swc): sets filename property, so to make additional swc
 features available

Background: When using the swc rollup plugin in vitest, debugging will not work. I assume this comes from the filename property not being set, as the documentation states:
```
The filename is optional, but not all of Swc's
functionality is available when the filename is unknown, because a subset of options rely on the filename for their functionality.
```

Setting a filename should not have any side effects, just make debugging and other features work.
---
 packages/swc/src/module.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/swc/src/module.ts b/packages/swc/src/module.ts
index 84933c172..e200566dc 100644
--- a/packages/swc/src/module.ts
+++ b/packages/swc/src/module.ts
@@ -37,7 +37,8 @@ export function swc(input: Options = {}): Plugin {
 
       return transform(code, {
         ...swcOptions,
-        sourceMaps: true
+        sourceMaps: true,
+        filename: id
       });
     }
   };