From 927df948ae29b638d6b3750022bcbc22ff4ee4ef Mon Sep 17 00:00:00 2001
From: yuyi <yuyi98@163.com>
Date: Wed, 17 Nov 2021 13:18:46 +0800
Subject: [PATCH] cgen: fix generic struct free() (#12487)

---
 vlib/v/gen/c/auto_free_methods.v         |  2 +-
 vlib/v/tests/generics_struct_free_test.v | 29 ++++++++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 vlib/v/tests/generics_struct_free_test.v

diff --git a/vlib/v/gen/c/auto_free_methods.v b/vlib/v/gen/c/auto_free_methods.v
index ea74f5281a..8886539d68 100644
--- a/vlib/v/gen/c/auto_free_methods.v
+++ b/vlib/v/gen/c/auto_free_methods.v
@@ -15,7 +15,7 @@ fn (mut g Gen) gen_free_method_for_type(typ ast.Type) string {
 		}
 	}
 
-	if sym.has_method('free') {
+	if sym.has_method_with_generic_parent('free') {
 		return fn_name
 	}
 	match mut sym.info {
diff --git a/vlib/v/tests/generics_struct_free_test.v b/vlib/v/tests/generics_struct_free_test.v
new file mode 100644
index 0000000000..f9bab5f315
--- /dev/null
+++ b/vlib/v/tests/generics_struct_free_test.v
@@ -0,0 +1,29 @@
+struct List<T> {
+pub mut:
+	head &ListNode<T> = 0
+}
+
+struct ListNode<T> {
+pub mut:
+	value T
+	next  &ListNode<T> = 0
+}
+
+fn list_new<T>() List<T> {
+	return List<T>{}
+}
+
+fn listnode_new<T>() &ListNode<T> {
+	return &ListNode<T>{0, 0}
+}
+
+fn (mut l List<T>) free() {
+	//
+}
+
+fn test_generic_struct_free() {
+	mut list := list_new<string>()
+	println(list)
+	list.free()
+	assert true
+}