feat(compiler): set sourcesContent for source map

packages/compiler-core/__tests__/codegen.spec.ts

@@ -3,10 +3,16 @@ import { SourceMapConsumer, RawSourceMap } from 'source-map'
 
 describe('compiler: codegen', () => {
   test('basic source map support', async () => {
-    const ast = parse(`hello {{ world }}`)
-    const { code, map } = generate(ast)
+    const source = `hello {{ world }}`
+    const ast = parse(source)
+    const { code, map } = generate(ast, {
+      filename: `foo.vue`
+    })
     expect(code).toBe(`["hello ", world]`)
 
+    expect(map!.sources).toEqual([`foo.vue`])
+    expect(map!.sourcesContent).toEqual([source])
+
     const consumer = await new SourceMapConsumer(map as RawSourceMap)
     const pos = consumer.originalPositionFor({
       line: 1,

packages/compiler-core/src/codegen.ts

@@ -107,6 +107,9 @@ function createCodegenContext(
       }
     }
   }
+  if (!__BROWSER__) {
+    context.map!.setSourceContent(filename, context.source)
+  }
   return context
 }