From 263e1ee4a466c100ce7406bf38ef13455a384848 Mon Sep 17 00:00:00 2001
From: Delyan Angelov <delian66@gmail.com>
Date: Tue, 11 May 2021 11:02:28 +0300
Subject: [PATCH] ci: fix compilation of cmd/tools/vtest-cleancode.v

---
 vlib/v/ast/table.v | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/vlib/v/ast/table.v b/vlib/v/ast/table.v
index b1aefa93ac..95f91bd247 100644
--- a/vlib/v/ast/table.v
+++ b/vlib/v/ast/table.v
@@ -1113,6 +1113,9 @@ pub fn (mut t Table) resolve_generic_to_concrete(generic_type Type, generic_name
 	mut sym := t.get_type_symbol(generic_type)
 	if sym.name in generic_names {
 		index := generic_names.index(sym.name)
+		if index >= concrete_types.len {
+			return none
+		}
 		typ := concrete_types[index]
 		return typ.derive(generic_type).clear_flag(.generic)
 	} else if sym.kind == .array {