From 9663ecad2110905af6ffd1b595bd51a18640fb1d Mon Sep 17 00:00:00 2001
From: Owen Mansel-Chan <owen-mc@github.com>
Date: Thu, 26 Jun 2025 01:46:14 +0100
Subject: [PATCH] Avoid using deprecated class

---
 go/ql/lib/semmle/go/Types.qll | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/go/ql/lib/semmle/go/Types.qll b/go/ql/lib/semmle/go/Types.qll
index 4a4f8ec6b0dd..d377cb2c9d87 100644
--- a/go/ql/lib/semmle/go/Types.qll
+++ b/go/ql/lib/semmle/go/Types.qll
@@ -1044,7 +1044,9 @@ class DefinedType extends @definedtype, CompositeType {
    * Note that this is only defined for types declared in the project being
    * analyzed. It will not be defined for types declared in external packages.
    */
-  Type getBaseType() { result = this.getEntity().(DeclaredType).getSpec().getTypeExpr().getType() }
+  Type getBaseType() {
+    result = this.getEntity().(DeclaredTypeEntity).getSpec().getTypeExpr().getType()
+  }
 
   override Method getMethod(string m) {
     result = CompositeType.super.getMethod(m)