From 943a954f540ebd7966f3616baf90b6effad214ba Mon Sep 17 00:00:00 2001
From: Eric Traut <eric@traut.com>
Date: Thu, 5 Dec 2024 16:20:51 -0800
Subject: [PATCH] Fixed a bug that results in a crash under certain
 circumstances when `Self` is errantly specialized. This addresses #9552.

---
 packages/pyright-internal/src/analyzer/typeEvaluator.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/pyright-internal/src/analyzer/typeEvaluator.ts b/packages/pyright-internal/src/analyzer/typeEvaluator.ts
index 9252603b8c5b..7d277a175f88 100644
--- a/packages/pyright-internal/src/analyzer/typeEvaluator.ts
+++ b/packages/pyright-internal/src/analyzer/typeEvaluator.ts
@@ -15617,7 +15617,7 @@ export function createTypeEvaluator(
         flags: EvalFlags
     ) {
         // Self doesn't support any type arguments.
-        if (typeArgs) {
+        if (typeArgs && typeArgs.length > 0) {
             addDiagnostic(
                 DiagnosticRule.reportInvalidTypeArguments,
                 LocMessage.typeArgsExpectingNone().format({