From 51c81b82b8ffc0aef9a1cf3ffbe4c2ef4f429c69 Mon Sep 17 00:00:00 2001
From: westhide <100348231+westhide@users.noreply.github.com>
Date: Wed, 20 Jul 2022 23:49:32 +0800
Subject: [PATCH] fix(findExports): export with trailing comma (#59)

---
 src/analyze.ts       | 2 +-
 test/exports.test.ts | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/analyze.ts b/src/analyze.ts
index 2172a57..d1bc2bc 100644
--- a/src/analyze.ts
+++ b/src/analyze.ts
@@ -99,7 +99,7 @@ export function findExports (code: string): ESMExport[] {
   // Find named exports
   const namedExports = matchAll(EXPORT_NAMED_RE, code, { type: 'named' })
   for (const namedExport of namedExports) {
-    namedExport.names = namedExport.exports.split(/\s*,\s*/g).map(name => name.replace(/^.*?\sas\s/, '').trim())
+    namedExport.names = namedExport.exports.split(/\s*,\s*/g).map(name => name.replace(/^.*?\sas\s/, '').trim()).filter(name => !!name)
   }
 
   // Find export default
diff --git a/test/exports.test.ts b/test/exports.test.ts
index c74a21d..e12ec93 100644
--- a/test/exports.test.ts
+++ b/test/exports.test.ts
@@ -8,6 +8,7 @@ describe('findExports', () => {
     'export { useB, _useC as useC }': { names: ['useB', 'useC'], type: 'named' },
     'export default foo': { type: 'default', name: 'default', names: ['default'] },
     'export { default } from "./other"': { type: 'default', name: 'default', names: ['default'], specifier: './other' },
+    'export { default , } from "./other"': { type: 'default', name: 'default', names: ['default'], specifier: './other' },
     'export async function foo ()': { type: 'declaration', names: ['foo'] },
     'export const $foo = () => {}': { type: 'declaration', names: ['$foo'] },
     'export { foo as default }': { type: 'default', name: 'default', names: ['default'] },