hare

commit 65be00677f3190335a9d2ad05112573b4ed4a4e9
parent 4ef3f8f465c92471ee4739400e6092854eb5f82b
Author: Alexey Yerin <yyp@disroot.org>
Date:   Tue, 31 Oct 2023 16:10:41 +0300

hare::parse: Disallow single element tuples

Bootstrap harec already disallows them and in general they are incredibly
broken.

Signed-off-by: Alexey Yerin <yyp@disroot.org>

Diffstat:
M
hare/parse/expr.ha
 | 
11
+++++------

1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/hare/parse/expr.ha b/hare/parse/expr.ha
@@ -997,15 +997,14 @@ fn plain_tuple(
 	append(values, alloc(ex));
 
 	for (true) {
-		match (try(lexer, ltok::RPAREN)?) {
-		case lex::token => break;
-		case void => void;
-		};
-
 		append(values, alloc(expr(lexer)?));
 
 		match (try(lexer, ltok::COMMA)?) {
-		case lex::token => void;
+		case lex::token =>
+			match (try(lexer, ltok::RPAREN)) {
+			case lex::token => break;
+			case => void;
+			};
 		case void =>
 			want(lexer, ltok::RPAREN)?;
 			break;