Add trailing comma support to matches macro

rust-lang · Jul 28, 2020 · f3d7645 · f3d7645
1 parent 2c28244
commit f3d7645
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/library/core/src/macros/mod.rs b/library/core/src/macros/mod.rs
@@ -255,7 +255,7 @@ macro_rules! debug_assert_ne {
 #[macro_export]
 #[stable(feature = "matches_macro", since = "1.42.0")]
 macro_rules! matches {
-    ($expression:expr, $( $pattern:pat )|+ $( if $guard: expr )?) => {
+    ($expression:expr, $( $pattern:pat )|+ $( if $guard: expr )? $(,)?) => {
         match $expression {
             $( $pattern )|+ $( if $guard )? => true,
             _ => false