fix: add source map to Web Workers (fix #14216) (#14217)

yume-chan · bluwy · commit df6f32f4bc89 · 2023-10-04T00:20:14.000+08:00
diff --git a/packages/vite/src/node/plugins/worker.ts b/packages/vite/src/node/plugins/worker.ts
@@ -274,9 +274,15 @@ export function webWorkerPlugin(config: ResolvedConfig): Plugin {
             injectEnv = module?.transformResult?.code || ''
           }
         }
-        return {
-          code: injectEnv + raw,
+        if (injectEnv) {
+          const s = new MagicString(raw)
+          s.prepend(injectEnv)
+          return {
+            code: s.toString(),
+            map: s.generateMap({ hires: 'boundary' }),
+          }
         }
+        return
       }
       if (
         query == null ||

Original file line number	Diff line number	Diff line change
`@@ -274,9 +274,15 @@ export function webWorkerPlugin(config: ResolvedConfig): Plugin {`
`274`	`274`	`injectEnv = module?.transformResult?.code \|\| ''`
`275`	`275`	`}`
`276`	`276`	`}`
`277`		`- return {`
`278`		`- code: injectEnv + raw,`
	`277`	`+ if (injectEnv) {`
	`278`	`+ const s = new MagicString(raw)`
	`279`	`+ s.prepend(injectEnv)`
	`280`	`+ return {`
	`281`	`+ code: s.toString(),`
	`282`	`+ map: s.generateMap({ hires: 'boundary' }),`
	`283`	`+ }`
`279`	`284`	`}`
	`285`	`+ return`
`280`	`286`	`}`
`281`	`287`	`if (`
`282`	`288`	`query == null \|\|`