From 56228f3de657ad68eae8c9976bc468923463d9c7 Mon Sep 17 00:00:00 2001
From: Swastik Baranwal <swstkbaranwal@gmail.com>
Date: Sat, 3 Jan 2026 12:26:07 +0530
Subject: [PATCH] parser: disallow `[3]!int{}` (fix #26244) (#26249)

---
 vlib/v/parser/checks.v                              | 2 +-
 vlib/v/parser/containers.v                          | 6 +++++-
 vlib/v/parser/tests/fixed_array_init_result_err.out | 3 +++
 vlib/v/parser/tests/fixed_array_init_result_err.vv  | 1 +
 4 files changed, 10 insertions(+), 2 deletions(-)
 create mode 100644 vlib/v/parser/tests/fixed_array_init_result_err.out
 create mode 100644 vlib/v/parser/tests/fixed_array_init_result_err.vv

diff --git a/vlib/v/parser/checks.v b/vlib/v/parser/checks.v
index cfb9daf7e..1598aa791 100644
--- a/vlib/v/parser/checks.v
+++ b/vlib/v/parser/checks.v
@@ -73,7 +73,7 @@ fn (p &Parser) is_array_type() bool {
 		if tok.kind in [.name, .amp] {
 			return true
 		}
-		if tok.kind == .eof {
+		if tok.kind in [.eof, .colon, .dot] {
 			break
 		}
 		i++
diff --git a/vlib/v/parser/containers.v b/vlib/v/parser/containers.v
index 0dfef0ab8..218f2b4ad 100644
--- a/vlib/v/parser/containers.v
+++ b/vlib/v/parser/containers.v
@@ -119,7 +119,11 @@ fn (mut p Parser) array_init(is_option bool, alias_array_type ast.Type) ast.Arra
 					last_pos = p.tok.pos()
 					is_fixed = true
 					has_val = true
-					p.next()
+					if exprs.len == 1 && p.tok.line_nr == line_nr && p.is_array_type() {
+						p.error('fixed arrays do not support storing Result values')
+					} else {
+						p.next()
+					}
 				}
 				if p.tok.kind == .not && p.tok.line_nr == p.prev_tok.line_nr {
 					last_pos = p.tok.pos()
diff --git a/vlib/v/parser/tests/fixed_array_init_result_err.out b/vlib/v/parser/tests/fixed_array_init_result_err.out
new file mode 100644
index 000000000..3f77da70c
--- /dev/null
+++ b/vlib/v/parser/tests/fixed_array_init_result_err.out
@@ -0,0 +1,3 @@
+vlib/v/parser/tests/fixed_array_init_result_err.vv:1:8: error: fixed arrays do not support storing Result values
+    1 | _ = [3]!int{}
+      |        ^
diff --git a/vlib/v/parser/tests/fixed_array_init_result_err.vv b/vlib/v/parser/tests/fixed_array_init_result_err.vv
new file mode 100644
index 000000000..9f9b8f01d
--- /dev/null
+++ b/vlib/v/parser/tests/fixed_array_init_result_err.vv
@@ -0,0 +1 @@
+_ = [3]!int{}
-- 
2.39.5