From cd6f229ed84b8fdb26ca80553dbed05d33a3949f Mon Sep 17 00:00:00 2001
From: Matthew Dean <matthew-dean@users.noreply.github.com>
Date: Mon, 13 Nov 2023 06:17:13 -0800
Subject: [PATCH] Fixes #1192 - extends abstract (and non-abstract) class

---
 src/structs/types.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/structs/types.ts b/src/structs/types.ts
index 8bcc0ef3..d16643c8 100644
--- a/src/structs/types.ts
+++ b/src/structs/types.ts
@@ -140,7 +140,7 @@ export function func(): Struct<Function, null> {
  * Ensure that a value is an instance of a specific class.
  */
 
-export function instance<T extends { new (...args: any): any }>(
+export function instance<T extends abstract new (...args: any) => any>(
   Class: T
 ): Struct<InstanceType<T>, null> {
   return define('instance', (value) => {