From 1bfeda62563c2227aab044df793a16c30ef1022e Mon Sep 17 00:00:00 2001
From: Felipe Pena <felipensp@gmail.com>
Date: Fri, 3 Jan 2025 13:01:25 -0300
Subject: [PATCH] cgen: fix codegen for alias struct embed (fix #23347)
 (#23353)

---
 vlib/v/gen/c/struct.v                       |  6 +++++-
 vlib/v/tests/struct_with_alias_embed_test.v | 13 +++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)
 create mode 100644 vlib/v/tests/struct_with_alias_embed_test.v

diff --git a/vlib/v/gen/c/struct.v b/vlib/v/gen/c/struct.v
index 2103ba4fb1e1b3..23e892f87380ae 100644
--- a/vlib/v/gen/c/struct.v
+++ b/vlib/v/gen/c/struct.v
@@ -197,7 +197,11 @@ fn (mut g Gen) struct_init(node ast.StructInit) {
 				embed_sym := g.table.sym(embed)
 				embed_name := embed_sym.embed_name()
 				if embed_name !in inited_fields {
-					embed_info := embed_sym.info as ast.Struct
+					embed_info := if embed_sym.info is ast.Struct {
+						embed_sym.info
+					} else {
+						g.table.final_sym(embed).info as ast.Struct
+					}
 					embed_field_names := embed_info.fields.map(it.name)
 					fields_to_embed := init_fields_to_embed.filter(it.name !in used_embed_fields
 						&& it.name in embed_field_names)
diff --git a/vlib/v/tests/struct_with_alias_embed_test.v b/vlib/v/tests/struct_with_alias_embed_test.v
new file mode 100644
index 00000000000000..3833c740f82b86
--- /dev/null
+++ b/vlib/v/tests/struct_with_alias_embed_test.v
@@ -0,0 +1,13 @@
+struct Foo1 {}
+
+type Foo2 = Foo1
+
+struct Bar {
+	Foo2
+}
+
+fn test_main() {
+	assert Bar{}.str() == 'Bar{
+    Foo2:     Foo2(Foo1{})
+}'
+}