From b76bae13fde74c2f452604403e55fca5ce3269cd Mon Sep 17 00:00:00 2001
From: Linus Groh <mail@linusgroh.de>
Date: Sun, 15 Aug 2021 00:42:31 +0100
Subject: [PATCH] LibJS: Handle PlainMonthDay in ISO{Year,Month,MonthCode,Day}

---
 .../Libraries/LibJS/Runtime/Temporal/Calendar.cpp    | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/Userland/Libraries/LibJS/Runtime/Temporal/Calendar.cpp b/Userland/Libraries/LibJS/Runtime/Temporal/Calendar.cpp
index 006eb41326..e3f4597060 100644
--- a/Userland/Libraries/LibJS/Runtime/Temporal/Calendar.cpp
+++ b/Userland/Libraries/LibJS/Runtime/Temporal/Calendar.cpp
@@ -727,7 +727,8 @@ i32 iso_year(Object& temporal_object)
         return static_cast<PlainDateTime&>(temporal_object).iso_year();
     if (is<PlainYearMonth>(temporal_object))
         return static_cast<PlainYearMonth&>(temporal_object).iso_year();
-    // TODO: PlainMonthDay
+    if (is<PlainMonthDay>(temporal_object))
+        return static_cast<PlainMonthDay&>(temporal_object).iso_year();
     VERIFY_NOT_REACHED();
 }
 
@@ -744,7 +745,8 @@ u8 iso_month(Object& temporal_object)
         return static_cast<PlainDateTime&>(temporal_object).iso_month();
     if (is<PlainYearMonth>(temporal_object))
         return static_cast<PlainYearMonth&>(temporal_object).iso_month();
-    // TODO: PlainMonthDay
+    if (is<PlainMonthDay>(temporal_object))
+        return static_cast<PlainMonthDay&>(temporal_object).iso_month();
     VERIFY_NOT_REACHED();
 }
 
@@ -761,7 +763,8 @@ String iso_month_code(Object& temporal_object)
         return build_iso_month_code(static_cast<PlainDateTime&>(temporal_object).iso_month());
     if (is<PlainYearMonth>(temporal_object))
         return build_iso_month_code(static_cast<PlainYearMonth&>(temporal_object).iso_month());
-    // TODO: PlainMonthDay
+    if (is<PlainMonthDay>(temporal_object))
+        return build_iso_month_code(static_cast<PlainMonthDay&>(temporal_object).iso_month());
     VERIFY_NOT_REACHED();
 }
 
@@ -778,7 +781,8 @@ u8 iso_day(Object& temporal_object)
         return static_cast<PlainDateTime&>(temporal_object).iso_day();
     if (is<PlainYearMonth>(temporal_object))
         return static_cast<PlainYearMonth&>(temporal_object).iso_day();
-    // TODO: PlainMonthDay
+    if (is<PlainMonthDay>(temporal_object))
+        return static_cast<PlainMonthDay&>(temporal_object).iso_day();
     VERIFY_NOT_REACHED();
 }