From f129024d69c4e2c34934be9e81522acb46258cd3 Mon Sep 17 00:00:00 2001
From: Eduardo San Martin Morote <posva@users.noreply.github.com>
Date: Thu, 8 Mar 2018 17:24:09 +0100
Subject: [PATCH] fix(codegen): support filters with () in older browsers
 (#7545)

Fix #7544
Make sure no extra , is added at the end of the call so it also work with older browsers
---
 src/compiler/parser/filter-parser.js       | 2 +-
 test/unit/modules/compiler/codegen.spec.js | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/compiler/parser/filter-parser.js b/src/compiler/parser/filter-parser.js
index ca8ead850ae..10939d3fb34 100644
--- a/src/compiler/parser/filter-parser.js
+++ b/src/compiler/parser/filter-parser.js
@@ -92,6 +92,6 @@ function wrapFilter (exp: string, filter: string): string {
   } else {
     const name = filter.slice(0, i)
     const args = filter.slice(i + 1)
-    return `_f("${name}")(${exp},${args}`
+    return `_f("${name}")(${exp}${args !== ')' ? ',' + args : args}`
   }
 }
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 2ecdca93828..a072904ece0 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -44,6 +44,13 @@ describe('codegen', () => {
     )
   })
 
+  it('generate filters with no arguments', () => {
+    assertCodegen(
+      '<div>{{ d | e() }}</div>',
+      `with(this){return _c('div',[_v(_s(_f("e")(d)))])}`
+    )
+  })
+
   it('generate v-for directive', () => {
     assertCodegen(
       '<div><li v-for="item in items" :key="item.uid"></li></div>',