nitrpg: implement correct caching for User::player

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/contrib/nitrpg/src/game.nit b/contrib/nitrpg/src/game.nit
index 9c71566..4d62283 100644 (file)
--- a/contrib/nitrpg/src/game.nit
+++ b/contrib/nitrpg/src/game.nit
@@ -235,11 +235,16 @@ end
 
 redef class User
        # The player linked to `self`.
-       fun player(game: Game): Player is lazy do
-               var player = game.load_player(login)
+       fun player(game: Game): Player do
+               var player = player_cache.get_or_null(game)
+               if player != null then return player
+               player = game.load_player(login)
                if player == null then player = game.add_player(self)
+               player_cache[game] = player
                return player
        end
+
+       private var player_cache = new HashMap[Game, Player]
 end
 
 # A GameReactor reacts to event sent by a `Github::HookListener`.