From 875dbf3140935d43bd996443fbe5bb05a5044395 Mon Sep 17 00:00:00 2001
From: gingerBill <bill@gingerbill.org>
Date: Sat, 22 Feb 2025 17:56:42 +0000
Subject: [PATCH] Disallow syntax: `proc(x,:T)`

---
 src/parser.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/parser.cpp b/src/parser.cpp
index 94f8fd42c2e..a3e95f45125 100644
--- a/src/parser.cpp
+++ b/src/parser.cpp
@@ -4343,6 +4343,9 @@ gb_internal Ast *parse_field_list(AstFile *f, isize *name_count_, u32 allowed_fl
 
 
 	if (f->curr_token.kind == Token_Colon) {
+		if (f->prev_token.kind == Token_Comma) {
+			syntax_error(f->prev_token, "Trailing comma before a colon is not allowed");
+		}
 		Array<Ast *> names = convert_to_ident_list(f, list, true, allow_poly_names); // Copy for semantic reasons
 		if (names.count == 0) {
 			syntax_error(f->curr_token, "Empty field declaration");