remove LuaManager::PushNopFunction(). Just compile an empty function;

it'll be tiny, anyway.

stepmania/src/ActorCommands.cpp

@@ -14,13 +14,6 @@ ActorCommands::ActorCommands( const Commands& cmds )
 
 void ActorCommands::Register()
 {
-	if( m_cmds.v.size() == 0 )
-	{
-		LUA->PushNopFunction();
-		this->SetFromStack();
-		return;
-	}
-
 	//
 	// Convert cmds to a Lua function
 	//

stepmania/src/LuaManager.cpp

@@ -59,13 +59,6 @@ void LuaManager::PushStackNil()
 	lua_pushnil( L );
 }
 
-void LuaManager::PushNopFunction()
-{
-	lua_rawgeti( LUA->L, LUA_REGISTRYINDEX, m_iNopFunction );
-
-	ASSERT_M( !lua_isnil(L, -1), ssprintf("%i", m_iNopFunction) )
-}
-
 void LuaManager::PushStack( int out, lua_State *L )
 {
 	if( L == NULL )
@@ -221,10 +214,6 @@ void LuaManager::ResetState()
 	luaopen_string( L );
 	lua_settop(L, 0); // luaopen_* pushes stuff onto the stack that we don't need
 
-	/* Set up the NOP function pointer. */
-	RunScript( "return function() end", 1 );
-	m_iNopFunction = luaL_ref( L, LUA_REGISTRYINDEX );
-
 	for( const LuaFunctionList *p = g_LuaFunctions; p; p=p->next )
 		lua_register( L, p->name, p->func );
 

stepmania/src/LuaManager.h

@@ -58,8 +58,6 @@ public:
 	/* Run an expression.  The result is left on the Lua stack. */
 	bool RunExpression( const CString &str );
 	lua_State *L;
-private:
-	int m_iNopFunction;
 };
 
 extern LuaManager *LUA;