From 7e6ac544f77a701eb7e70b6d21338ad38dc5781a Mon Sep 17 00:00:00 2001
From: joshua stein <jcs@jcs.org>
Date: Mon, 17 Feb 2020 13:19:28 -0600
Subject: [PATCH] AK: Add ptr_hash to use int_hash or u64_hash depending on
 pointer size

---
 AK/HashFunctions.h | 8 ++++++++
 AK/OwnPtr.h        | 2 +-
 AK/RefPtr.h        | 2 +-
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/AK/HashFunctions.h b/AK/HashFunctions.h
index 9fb365c744..caad086d76 100644
--- a/AK/HashFunctions.h
+++ b/AK/HashFunctions.h
@@ -50,3 +50,11 @@ inline unsigned u64_hash(u64 key)
     u32 last = key >> 32;
     return pair_int_hash(first, last);
 }
+
+inline unsigned ptr_hash(uintptr_t ptr)
+{
+    if constexpr(sizeof(ptr) == 8)
+        return u64_hash((u64)ptr);
+    else
+        return int_hash((u32)ptr);
+}
diff --git a/AK/OwnPtr.h b/AK/OwnPtr.h
index 6680938201..b975abd873 100644
--- a/AK/OwnPtr.h
+++ b/AK/OwnPtr.h
@@ -204,7 +204,7 @@ inline void swap(OwnPtr<T>& a, OwnPtr<U>& b)
 template<typename T>
 struct Traits<OwnPtr<T>> : public GenericTraits<OwnPtr<T>> {
     using PeekType = const T*;
-    static unsigned hash(const OwnPtr<T>& p) { return int_hash((u32)p.ptr()); }
+    static unsigned hash(const OwnPtr<T>& p) { return ptr_hash(p.ptr()); }
     static bool equals(const OwnPtr<T>& a, const OwnPtr<T>& b) { return a.ptr() == b.ptr(); }
 };
 
diff --git a/AK/RefPtr.h b/AK/RefPtr.h
index c3cd1aa556..6e5a9554b5 100644
--- a/AK/RefPtr.h
+++ b/AK/RefPtr.h
@@ -278,7 +278,7 @@ inline const LogStream& operator<<(const LogStream& stream, const RefPtr<T>& val
 template<typename T>
 struct Traits<RefPtr<T>> : public GenericTraits<RefPtr<T>> {
     using PeekType = const T*;
-    static unsigned hash(const RefPtr<T>& p) { return int_hash((u32)p.ptr()); }
+    static unsigned hash(const RefPtr<T>& p) { return ptr_hash(p.ptr()); }
     static bool equals(const RefPtr<T>& a, const RefPtr<T>& b) { return a.ptr() == b.ptr(); }
 };