From 2fe6e23138d990a852a59d9680847cb6718565bb Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Tue, 31 Mar 2020 14:52:20 +0200
Subject: When adding match arm, don't let the floating comma

---
 crates/ra_assists/src/handlers/fill_match_arms.rs | 30 +++++++++++++++++++----
 1 file changed, 25 insertions(+), 5 deletions(-)

(limited to 'crates/ra_assists/src')

diff --git a/crates/ra_assists/src/handlers/fill_match_arms.rs b/crates/ra_assists/src/handlers/fill_match_arms.rs
index 41bb97928..8d1af9933 100644
--- a/crates/ra_assists/src/handlers/fill_match_arms.rs
+++ b/crates/ra_assists/src/handlers/fill_match_arms.rs
@@ -1,15 +1,11 @@
-//! FIXME: write short doc here
-
 use std::iter;
 
 use hir::{Adt, HasSource, ModuleDef, Semantics};
 use itertools::Itertools;
 use ra_ide_db::RootDatabase;
+use ra_syntax::ast::{self, make, AstNode, MatchArm, NameOwner, Pat};
 
 use crate::{Assist, AssistCtx, AssistId};
-use ra_syntax::ast::{self, make, AstNode, NameOwner};
-
-use ast::{MatchArm, Pat};
 
 // Assist: fill_match_arms
 //
@@ -717,4 +713,28 @@ mod tests {
             "#,
         );
     }
+
+    #[test]
+    fn fill_match_arms_placeholder() {
+        check_assist(
+            fill_match_arms,
+            r#"
+            enum A { One, Two, }
+            fn foo(a: A) {
+                match a<|> {
+                    _ => (),
+                }
+            }
+            "#,
+            r#"
+            enum A { One, Two, }
+            fn foo(a: A) {
+                match <|>a {
+                    A::One => {}
+                    A::Two => {}
+                }
+            }
+            "#,
+        );
+    }
 }
-- 
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