From 617adaf0d6d80cc250cce9b509880da481d70884 Mon Sep 17 00:00:00 2001
From: Alexander Medvednikov <alexander@medvednikov.com>
Date: Tue, 21 Apr 2026 14:46:49 +0300
Subject: [PATCH] tests: add test for saving a reference to a function in a map
 via metaprogramming (fixes #18397)

---
 .../comptime_call_method_closure_test.v       | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/vlib/v/tests/comptime/comptime_call_method_closure_test.v b/vlib/v/tests/comptime/comptime_call_method_closure_test.v
index e94fbdfff..f7388d564 100644
--- a/vlib/v/tests/comptime/comptime_call_method_closure_test.v
+++ b/vlib/v/tests/comptime/comptime_call_method_closure_test.v
@@ -43,3 +43,31 @@ fn test_comptime_method_value() {
 	assert results[0] == 'foo rabbit'
 	assert results[1] == 'bar rabbit'
 }
+
+@[heap]
+struct MethodMapApp {
+	prefix string
+}
+
+fn (app &MethodMapApp) alpha() string {
+	return '${app.prefix}:alpha'
+}
+
+fn (app &MethodMapApp) beta() string {
+	return '${app.prefix}:beta'
+}
+
+fn build_method_map[T](app &T) map[string]fn () string {
+	mut syms := map[string]fn () string{}
+	$for method in T.methods {
+		syms[method.name] = app.$(method.name)
+	}
+	return syms
+}
+
+fn test_comptime_method_value_map() {
+	app := MethodMapApp{'ctx'}
+	syms := build_method_map(app)
+	assert syms['alpha']() == 'ctx:alpha'
+	assert syms['beta']() == 'ctx:beta'
+}
-- 
2.39.5