Simplify

Author: Veykril

crates/parser/src/grammar/expressions/atom.rs

@@ -448,10 +448,8 @@ fn match_arm(p: &mut Parser) {
     //         _ => ()
     //     }
     // }
-    if blocklike.is_block() {
-        p.eat(T![,]);
-    } else if !p.at(T!['}']) {
-        p.expect(T![,]);
+    if !p.eat(T![,]) && !blocklike.is_block() && !p.at(T!['}']) {
+        p.error("expected `,`");
     }
     m.complete(p, MATCH_ARM);
 }

crates/syntax/test_data/parser/err/0032_match_arms_inner_attrs.rast

@@ -194,11 +194,11 @@ SOURCE_FILE@0..293
 error 52..52: expected `[`
 error 52..52: expected pattern
 error 53..53: expected FAT_ARROW
-error 78..78: expected COMMA
+error 78..78: expected `,`
 error 161..161: expected `[`
 error 161..161: expected pattern
 error 162..162: expected FAT_ARROW
 error 232..232: expected `[`
 error 232..232: expected pattern
 error 233..233: expected FAT_ARROW
-error 250..250: expected COMMA
+error 250..250: expected `,`