hare

commit 8896188829a00923d51bc8ec471bd138de5f965a
parent f81955048c5ca066067ee6c864756c148ef5d5f5
Author: Thomas Bracht Laumann Jespersen <t@laumann.xyz>
Date:   Sat, 19 Nov 2022 14:33:49 +0100

hare::parse: free lexer.comment to avoid duplication

The comment buffer in the lexer needs to be freed to avoid duplicating
line comments when parsing enum types.

Fixes: https://todo.sr.ht/~sircmpwn/hare/767
Signed-off-by: Thomas Bracht Laumann Jespersen <t@laumann.xyz>

Diffstat:
M
hare/parse/+test/types.ha
 | 
9
+++++++++
M
hare/parse/type.ha
 | 
2
++

2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/hare/parse/+test/types.ha b/hare/parse/+test/types.ha
@@ -79,3 +79,12 @@ export type baz = (bat | foo::bar::baz | long_type_name | yet_another_very_long_
 	this_spans_multiple_lines | for_readability);
 ");
 };
+
+@test fn enum_comments() void = {
+	roundtrip("type foo = enum {
+	A, // comment
+	B,
+	C,
+};
+");
+};
diff --git a/hare/parse/type.ha b/hare/parse/type.ha
@@ -431,6 +431,8 @@ fn enum_type(lexer: *lex::lexer) (ast::_type | error) = {
 			if (linecomment != "") {
 				free(comment);
 				comment = strings::dup(linecomment);
+				free(lexer.comment);
+				lexer.comment = "";
 			};
 		case ltok::RBRACE => break;
 		case => abort();