From 3debd197126535ee1a749c8581d391fc116b8e80 Mon Sep 17 00:00:00 2001
From: Alexander Medvednikov <alexander@medvednikov.com>
Date: Sun, 24 May 2026 15:11:32 +0300
Subject: [PATCH] parser, fmt: keep trailing comment on array element when next
 line starts with `.enum_val` (fix #27074) (#27222)

---
 .../tests/array_init_enum_short_no_comma_expected.vv  | 11 +++++++++++
 .../fmt/tests/array_init_enum_short_no_comma_input.vv | 11 +++++++++++
 vlib/v/parser/expr.v                                  |  3 ++-
 3 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 vlib/v/fmt/tests/array_init_enum_short_no_comma_expected.vv
 create mode 100644 vlib/v/fmt/tests/array_init_enum_short_no_comma_input.vv

diff --git a/vlib/v/fmt/tests/array_init_enum_short_no_comma_expected.vv b/vlib/v/fmt/tests/array_init_enum_short_no_comma_expected.vv
new file mode 100644
index 000000000..614e90047
--- /dev/null
+++ b/vlib/v/fmt/tests/array_init_enum_short_no_comma_expected.vv
@@ -0,0 +1,11 @@
+enum EE {
+	a
+	b
+	c
+}
+
+const xs = [
+	EE.a, // first
+	.b, // missing comma
+	.c, // third
+]
diff --git a/vlib/v/fmt/tests/array_init_enum_short_no_comma_input.vv b/vlib/v/fmt/tests/array_init_enum_short_no_comma_input.vv
new file mode 100644
index 000000000..2f073775b
--- /dev/null
+++ b/vlib/v/fmt/tests/array_init_enum_short_no_comma_input.vv
@@ -0,0 +1,11 @@
+enum EE {
+	a
+	b
+	c
+}
+
+const xs = [
+	EE.a, // first
+	.b // missing comma
+	.c, // third
+]
diff --git a/vlib/v/parser/expr.v b/vlib/v/parser/expr.v
index c41febc02..11280cdd5 100644
--- a/vlib/v/parser/expr.v
+++ b/vlib/v/parser/expr.v
@@ -500,7 +500,8 @@ fn (mut p Parser) check_expr(precedence int) !ast.Expr {
 		p.if_cond_comments << p.eat_comments()
 	}
 	if p.pref.is_fmt && p.tok.kind == .comment && p.peek_tok.kind.is_infix() && !p.inside_map_init
-		&& !(p.peek_tok.kind == .mul && p.peek_tok.pos().line_nr != p.tok.pos().line_nr) {
+		&& !(p.peek_tok.kind == .mul && p.peek_tok.pos().line_nr != p.tok.pos().line_nr)
+		&& !(p.peek_tok.kind == .dot && p.inside_array_lit) {
 		p.left_comments = p.eat_comments()
 	}
 	return p.expr_with_left(node, precedence, is_stmt_ident)
-- 
2.39.5