From 071f11fd372c211d1f8f3e55a9ffec9c89bfc4a5 Mon Sep 17 00:00:00 2001
From: Tina Liu <iting_liu@apple.com>
Date: Thu, 13 Feb 2025 18:04:06 -0800
Subject: [PATCH] Add an unknown case in case FoundationEssentials.Calendar
 exposes more calendar identifiers

---
 Sources/Foundation/NSCalendar.swift | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Sources/Foundation/NSCalendar.swift b/Sources/Foundation/NSCalendar.swift
index 20774d22d9..465912e6a5 100644
--- a/Sources/Foundation/NSCalendar.swift
+++ b/Sources/Foundation/NSCalendar.swift
@@ -59,6 +59,9 @@ extension NSCalendar {
             case .republicOfChina: self = .republicOfChina
             case .islamicTabular: self = .islamicTabular
             case .islamicUmmAlQura: self = .islamicUmmAlQura
+            @unknown default:
+                // Default to gregorian if `FoundationEssentials.Calendar` adds more calendar that we do not support here yet
+                self = .gregorian
             }
         }