From 11f72000a9c3e4f19dee22dfe8464f871716ca6d Mon Sep 17 00:00:00 2001
From: Alexander McCord <alex@mccord.dev>
Date: Sun, 26 May 2024 12:04:58 -0700
Subject: [PATCH] Move std::hash specialization to header.

---
 EqSat/include/Luau/Id.h |  8 ++++++++
 EqSat/src/Id.cpp        | 12 +++---------
 2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/EqSat/include/Luau/Id.h b/EqSat/include/Luau/Id.h
index 15d46d84..13de424f 100644
--- a/EqSat/include/Luau/Id.h
+++ b/EqSat/include/Luau/Id.h
@@ -1,6 +1,8 @@
 // This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
 #pragma once
 
+#include <functional>
+
 namespace Luau::EqSat
 {
 
@@ -18,3 +20,9 @@ private:
 };
 
 } // namespace Luau::EqSat
+
+template<>
+struct std::hash<Luau::EqSat::Id>
+{
+    size_t operator()(Luau::EqSat::Id id) const;
+};
diff --git a/EqSat/src/Id.cpp b/EqSat/src/Id.cpp
index e8f2b63e..960249ba 100644
--- a/EqSat/src/Id.cpp
+++ b/EqSat/src/Id.cpp
@@ -1,8 +1,6 @@
 // This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
 #include "Luau/Id.h"
 
-#include <functional>
-
 namespace Luau::EqSat
 {
 
@@ -28,11 +26,7 @@ bool Id::operator!=(Id rhs) const
 
 } // namespace Luau::EqSat
 
-template<>
-struct std::hash<Luau::EqSat::Id>
+size_t std::hash<Luau::EqSat::Id>::operator()(Luau::EqSat::Id id) const
 {
-    size_t operator()(Luau::EqSat::Id id) const
-    {
-        return std::hash<size_t>()(size_t(id));
-    }
-};
+    return std::hash<size_t>()(size_t(id));
+}