From 769699ede6edba13f86c59d7a0ba9ec848f5fd93 Mon Sep 17 00:00:00 2001
From: Felipe Pena <felipensp@gmail.com>
Date: Sat, 2 Nov 2024 05:58:05 -0300
Subject: [PATCH] cgen: fix spawn with non-pointer receiver (fix #22718)
 (#22719)

---
 vlib/v/gen/c/spawn_and_go.v                   |  4 ++++
 ...awn_with_different_method_receivers_test.v | 23 +++++++++++++++++++
 2 files changed, 27 insertions(+)
 create mode 100644 vlib/v/tests/concurrency/spawn_with_different_method_receivers_test.v

diff --git a/vlib/v/gen/c/spawn_and_go.v b/vlib/v/gen/c/spawn_and_go.v
index 1d93ecd13..833b7891b 100644
--- a/vlib/v/gen/c/spawn_and_go.v
+++ b/vlib/v/gen/c/spawn_and_go.v
@@ -101,6 +101,10 @@ fn (mut g Gen) spawn_and_go_expr(node ast.SpawnExpr, mode SpawnGoMode) {
 	}
 	if expr.is_method {
 		g.write('${arg_tmp_var}${dot}arg0 = ')
+		if expr.left is ast.Ident && expr.left.obj.typ.is_ptr()
+			&& !node.call_expr.receiver_type.is_ptr() {
+			g.write('*')
+		}
 		g.expr(expr.left)
 		g.writeln(';')
 	}
diff --git a/vlib/v/tests/concurrency/spawn_with_different_method_receivers_test.v b/vlib/v/tests/concurrency/spawn_with_different_method_receivers_test.v
new file mode 100644
index 000000000..8c10b811e
--- /dev/null
+++ b/vlib/v/tests/concurrency/spawn_with_different_method_receivers_test.v
@@ -0,0 +1,23 @@
+struct Server {}
+
+fn (server Server) non_mutable_receiver() {
+	println(@LOCATION)
+}
+
+fn (mut s Server) mutable_receiver() {
+	println(@LOCATION)
+}
+
+fn (s &Server) reference_receiver() {
+	println(@LOCATION)
+}
+
+fn test_spawning_threads_with_methods_that_have_mutable_and_non_mutable_receivers() {
+	mut server := &Server{}
+	t1 := spawn server.non_mutable_receiver()
+	t2 := spawn server.mutable_receiver()
+	t3 := spawn server.reference_receiver()
+	t1.wait()
+	t2.wait()
+	t3.wait()
+}
-- 
2.39.5