From 59310b350c0550ba94d9d8c7ff11d54b9601cfcc Mon Sep 17 00:00:00 2001
From: John Connor <jckusho@gmail.com>
Date: Fri, 22 Dec 2023 14:48:52 -0500
Subject: [PATCH] Fixed no deallocation upon garbage collection

Had been under the assumption Lua would handle the disposal of basic userdata when no `__gc` metamethod was otherwise specified. This assumption was incorrect.
---
 src/Types/PVS.cpp | 11 +++++++++++
 src/Types/PVS.hpp |  4 ++--
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/Types/PVS.cpp b/src/Types/PVS.cpp
index d1cc035..7c39619 100644
--- a/src/Types/PVS.cpp
+++ b/src/Types/PVS.cpp
@@ -197,6 +197,14 @@ namespace VisInfo::Types
 		return 1;
 	}
 
+	LUA_FUNCTION_STATIC(gc)
+	{
+		LUA->CheckType(1, PVSData::meta);
+		delete LUA->GetUserType<PVSData>(1, PVSData::meta);
+
+		return 0;
+	}
+
 	LUA_FUNCTION_STATIC(unm)
 	{
 		LUA->CheckType(1, PVSData::meta);
@@ -361,6 +369,9 @@ namespace VisInfo::Types
 		L->PushCFunction(tostring);
 		L->SetField(-2, "__tostring");
 
+		L->PushCFunction(gc);
+		L->SetField(-2, "__gc");
+
 		// Arithmetic Metamethods
 
 		L->PushCFunction(unm);
diff --git a/src/Types/PVS.hpp b/src/Types/PVS.hpp
index 71b5eab..2498e13 100644
--- a/src/Types/PVS.hpp
+++ b/src/Types/PVS.hpp
@@ -10,8 +10,8 @@ extern IVDebugOverlay* debug_overlay;
 
 const QAngle qZero; // I don't know why vec3_angle is unresolved
 
- extern inline void LuaPrint(GarrysMod::Lua::ILuaBase* L, char* msg);
- extern inline void LuaPrint(GarrysMod::Lua::ILuaBase* L, char* msg, int num);
+extern inline void LuaPrint(GarrysMod::Lua::ILuaBase* L, char* msg);
+extern inline void LuaPrint(GarrysMod::Lua::ILuaBase* L, char* msg, int num);
 
 namespace VisInfo::Types
 {