From cf1fc6f090db351458caa34f44251b11600bdd4d Mon Sep 17 00:00:00 2001
From: yuyi <yuyi98@163.com>
Date: Mon, 20 Jun 2022 17:23:53 +0800
Subject: [PATCH] ast: fix array of reference sumtype appending (#14797)

---
 vlib/v/ast/table.v                            |  2 +-
 .../array_of_reference_sumtype_append_test.v  | 35 +++++++++++++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)
 create mode 100644 vlib/v/tests/array_of_reference_sumtype_append_test.v

diff --git a/vlib/v/ast/table.v b/vlib/v/ast/table.v
index 35836502d6..45480f6620 100644
--- a/vlib/v/ast/table.v
+++ b/vlib/v/ast/table.v
@@ -1342,7 +1342,7 @@ pub fn (t &Table) is_sumtype_or_in_variant(parent Type, typ Type) bool {
 	if typ == 0 {
 		return false
 	}
-	if t.type_kind(typ) == .sum_type && parent.idx() == typ.idx()
+	if t.sym(typ).kind == .sum_type && parent.idx() == typ.idx()
 		&& parent.nr_muls() == typ.nr_muls() {
 		return true
 	}
diff --git a/vlib/v/tests/array_of_reference_sumtype_append_test.v b/vlib/v/tests/array_of_reference_sumtype_append_test.v
new file mode 100644
index 0000000000..581027886b
--- /dev/null
+++ b/vlib/v/tests/array_of_reference_sumtype_append_test.v
@@ -0,0 +1,35 @@
+struct Element {
+	AbstractNode
+	name       string
+	attributes []&Attribute
+}
+
+struct Attribute {
+	AbstractNode
+	name  string
+	value string
+}
+
+pub type Node = Attribute | Element
+
+struct AbstractNode {
+pub mut:
+	child_nodes []&Node
+}
+
+pub fn (mut n AbstractNode) append_child(child &Node) {
+	n.child_nodes << child
+}
+
+fn test_array_of_reference_sumtype_append() {
+	mut parent := &Element{
+		name: 'parent'
+	}
+	mut child := &Element{
+		name: 'child'
+	}
+	parent.append_child(child)
+
+	dump(parent)
+	assert parent.child_nodes[0].name == 'child'
+}