From 54fe0c88551ef5ca42ec18dadaf7b46d530f8535 Mon Sep 17 00:00:00 2001
From: Brian Gianforcaro <bgianf@serenityos.org>
Date: Sat, 11 Sep 2021 20:17:40 -0700
Subject: [PATCH] AK: Add the ability to hash the contents of a AK::HashMap

---
 AK/HashMap.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/AK/HashMap.h b/AK/HashMap.h
index f707c66068..4d4cdc516a 100644
--- a/AK/HashMap.h
+++ b/AK/HashMap.h
@@ -165,6 +165,16 @@ public:
         return list;
     }
 
+    [[nodiscard]] u32 hash() const
+    {
+        u32 hash = 0;
+        for (auto& it : *this) {
+            auto entry_hash = pair_int_hash(it.key.hash(), it.value.hash());
+            hash = pair_int_hash(hash, entry_hash);
+        }
+        return hash;
+    }
+
 private:
     HashTableType m_table;
 };