From 7801f5b16b087d765c2f398fc3cd3531a2f01a1c Mon Sep 17 00:00:00 2001
From: Felipe Pena <felipensp@gmail.com>
Date: Wed, 29 Oct 2025 12:44:13 -0300
Subject: [PATCH] comptime: fix codegen ptr field reading from comptimeselector
 (fix #25616) (#25620)

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

diff --git a/vlib/v/gen/c/comptime.v b/vlib/v/gen/c/comptime.v
index 3cc0cae05..b0087a63c 100644
--- a/vlib/v/gen/c/comptime.v
+++ b/vlib/v/gen/c/comptime.v
@@ -15,7 +15,7 @@ fn (mut g Gen) comptime_selector(node ast.ComptimeSelector) {
 		g.write('*(')
 	}
 	g.expr(node.left)
-	if node.left_type.is_ptr() {
+	if g.unwrap_generic(node.left_type).is_ptr() {
 		g.write('->')
 	} else {
 		g.write('.')
diff --git a/vlib/v/tests/comptime/comptime_ptr_field_test.v b/vlib/v/tests/comptime/comptime_ptr_field_test.v
new file mode 100644
index 000000000..621fa2f82
--- /dev/null
+++ b/vlib/v/tests/comptime/comptime_ptr_field_test.v
@@ -0,0 +1,29 @@
+fn encode[T](values T) string {
+	$if T is $pointer {
+		if voidptr(values) == unsafe { nil } {
+			return 'nil'
+		}
+		return encode_pointer_struct(values)
+	}
+	return 'other'
+}
+
+fn encode_pointer_struct[T](values T) string {
+	$for field in T.fields {
+		dump('${field.name}') // works `name`
+		mut val := values.$(field.name) // C error `root`
+		dump('${val}')
+	}
+	return 'struct'
+}
+
+struct Node {
+	name     string
+	children []&Node
+}
+
+fn test_main() {
+	assert encode('string') == 'other'
+	assert encode(&Node(unsafe { nil })) == 'nil'
+	assert encode(&Node{ name: 'root' }) == 'struct'
+}
-- 
2.39.5