fix: resolve review comments

Author: sxzz

packages/compiler-sfc/__tests__/rewriteDefault.spec.ts

@@ -165,43 +165,55 @@ describe('compiler sfc: rewriteDefault', () => {
         'script'
       )
     ).toMatchInlineSnapshot(`
-          "import { foo } from './index.js'
-          export {  bar } from './index.js'
-          const script = foo"
-        `)
+      "import { foo as __VUE_DEFAULT__ } from './index.js'
+      export {  bar } from './index.js'
+      const script = __VUE_DEFAULT__"
+    `)
 
     expect(
       compileRewriteDefault(
         `export { foo as default     , bar } from './index.js'`,
         'script'
       )
     ).toMatchInlineSnapshot(`
-          "import { foo } from './index.js'
-          export {  bar } from './index.js'
-          const script = foo"
-        `)
+      "import { foo as __VUE_DEFAULT__ } from './index.js'
+      export {  bar } from './index.js'
+      const script = __VUE_DEFAULT__"
+    `)
 
     expect(
       compileRewriteDefault(
         `export { bar,   foo as default } from './index.js'`,
         'script'
       )
     ).toMatchInlineSnapshot(`
-          "import { foo } from './index.js'
-          export { bar,    } from './index.js'
-          const script = foo"
-        `)
+      "import { foo as __VUE_DEFAULT__ } from './index.js'
+      export { bar,    } from './index.js'
+      const script = __VUE_DEFAULT__"
+    `)
 
     expect(
       compileRewriteDefault(
         `export { foo as default } from './index.js' \n const foo = 1`,
         'script'
       )
     ).toMatchInlineSnapshot(`
-      "import { foo } from './index.js'
+      "import { foo as __VUE_DEFAULT__ } from './index.js'
       export {  } from './index.js' 
        const foo = 1
-      const script = foo"
+      const script = __VUE_DEFAULT__"
+    `)
+
+    expect(
+      compileRewriteDefault(
+        `const a = 1 \nexport { a as default } from 'xxx'`,
+        'script'
+      )
+    ).toMatchInlineSnapshot(`
+      "import { a as __VUE_DEFAULT__ } from 'xxx'
+      const a = 1 
+      export {  } from 'xxx'
+      const script = __VUE_DEFAULT__"
     `)
   })
 

packages/compiler-sfc/src/rewriteDefault.ts

@@ -25,8 +25,7 @@ export function rewriteDefault(
       } else {
         s.overwrite(node.start!, node.declaration.start!, `const ${as} = `)
       }
-    }
-    if (node.type === 'ExportNamedDeclaration') {
+    } else if (node.type === 'ExportNamedDeclaration') {
       for (const specifier of node.specifiers) {
         if (
           specifier.type === 'ExportSpecifier' &&
@@ -39,7 +38,7 @@ export function rewriteDefault(
               s.prepend(
                 `import { default as __VUE_DEFAULT__ } from '${node.source.value}'\n`
               )
-              s.overwrite(specifier.start!, end, ``)
+              s.remove(specifier.start!, end)
               s.append(`\nconst ${as} = __VUE_DEFAULT__`)
               continue
             } else {
@@ -48,10 +47,10 @@ export function rewriteDefault(
                 `import { ${input.slice(
                   specifier.local.start!,
                   specifier.local.end!
-                )} } from '${node.source.value}'\n`
+                )} as __VUE_DEFAULT__ } from '${node.source.value}'\n`
               )
-              s.overwrite(specifier.start!, end, ``)
-              s.append(`\nconst ${as} = ${specifier.local.name}`)
+              s.remove(specifier.start!, end)
+              s.append(`\nconst ${as} = __VUE_DEFAULT__`)
               continue
             }
           }