fix: review comment

Author: sxzz

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

@@ -26,8 +26,8 @@ describe('compiler sfc: rewriteDefault', () => {
   test('rewrite variable value default', () => {
     expect(compileRewriteDefault(`export const foo = 'default'`, 'script'))
       .toMatchInlineSnapshot(`
-    "export const foo = 'default'
-    const script = {}"
+      "export const foo = 'default'
+      const script = {}"
     `)
   })
 
@@ -53,6 +53,18 @@ describe('compiler sfc: rewriteDefault', () => {
        export { a as b,  a as c}
       const script = a"
     `)
+
+    expect(
+      compileRewriteDefault(
+        `const a = 1 \n export { a as b } \n export { a as default, a as c }`,
+        'script'
+      )
+    ).toMatchInlineSnapshot(`
+      "const a = 1 
+       export { a as b } 
+       export {  a as c }
+      const script = a"
+    `)
   })
 
   test('w/ comments', async () => {

packages/compiler-sfc/src/rewriteDefault.ts

@@ -71,11 +71,11 @@ export function hasDefaultExport(ast: Statement[]): boolean {
       return true
     } else if (
       stmt.type === 'ExportNamedDeclaration' &&
-      stmt.specifiers.length > 0
-    ) {
-      return stmt.specifiers.some(
+      stmt.specifiers.some(
         spec => (spec.exported as Identifier).name === 'default'
       )
+    ) {
+      return true
     }
   }
   return false