Optimize lua object pushing

src/framework/luaengine/luaobject.cpp

@@ -23,11 +23,11 @@
 #include "luaobject.h"
 #include "luainterface.h"
 
+#include <typeinfo>
 #include <framework/core/application.h>
 
 LuaObject::LuaObject() :
-    m_fieldsTableRef(-1),
-    m_metatableRef(-1)
+    m_fieldsTableRef(-1)
 {
 }
 
@@ -37,11 +37,6 @@ LuaObject::~LuaObject()
     assert(!g_app.isTerminated());
 #endif
     releaseLuaFieldsTable();
-
-    if(m_metatableRef != -1) {
-        g_lua.unref(m_metatableRef);
-        m_metatableRef = -1;
-    }
 }
 
 bool LuaObject::hasLuaField(const std::string& field)
@@ -91,13 +86,19 @@ void LuaObject::luaGetField(const std::string& key)
 
 void LuaObject::luaGetMetatable()
 {
-    if(m_metatableRef == -1) {
-        // set the userdata metatable
-        g_lua.getGlobal(stdext::format("%s_mt", getClassName()));
-        m_metatableRef = g_lua.ref();
-    }
+    static std::unordered_map<const std::type_info*, int> metatableMap;
+    const std::type_info& tinfo = typeid(*this);
+    auto it = metatableMap.find(&tinfo);
 
-    g_lua.getRef(m_metatableRef);
+    int metatableRef;
+    if(it == metatableMap.end()) {
+        g_lua.getGlobal(getClassName() + "_mt");
+        metatableRef = g_lua.ref();
+        metatableMap[&tinfo] = metatableRef;
+    } else
+        metatableRef = it->second;
+
+    g_lua.getRef(metatableRef);
 }
 
 void LuaObject::luaGetFieldsTable()
@@ -112,3 +113,9 @@ int LuaObject::getUseCount()
 {
     return ref_count();
 }
+
+std::string LuaObject::getClassName()
+{
+    // TODO: this could be cached for more performance
+    return stdext::demangle_name(typeid(*this).name());
+}

src/framework/luaengine/luaobject.h

@@ -24,7 +24,6 @@
 #define LUAOBJECT_H
 
 #include "declarations.h"
-#include <typeinfo>
 
 /// LuaObject, all script-able classes have it as base
 // @bindclass
@@ -76,10 +75,7 @@ public:
     int getUseCount();
 
     /// Returns the derived class name, its the same name used in Lua
-    std::string getClassName() {
-        // TODO: this could be cached for more performance
-        return stdext::demangle_name(typeid(*this).name());
-    }
+    std::string getClassName();
 
     LuaObjectPtr asLuaObject() { return static_self_cast<LuaObject>(); }
 
@@ -87,7 +83,6 @@ public:
 
 private:
     int m_fieldsTableRef;
-    int m_metatableRef;
 };
 
 #include "luainterface.h"

src/main.cpp

@@ -25,6 +25,9 @@
 #include <framework/luaengine/luainterface.h>
 #include <otclient/otclient.h>
 
+#include "otclient/item.h"
+#include "otclient/tile.h"
+
 int main(int argc, const char* argv[])
 {
     std::vector<std::string> args(argv, argv + argc);

src/otclient/item.h

@@ -127,7 +127,7 @@ private:
     uint8 m_countOrSubType;
     stdext::packed_storage<uint8> m_attribs;
 };
+
 #pragma pack(pop)
 
-
 #endif