--- a/mercurial/util.py Sat Jul 04 14:18:15 2009 +0100
+++ b/mercurial/util.py Thu Jul 09 19:49:02 2009 -0500
@@ -115,6 +115,33 @@
return f
+def lrucachefunc(func):
+ '''cache most recent results of function calls'''
+ cache = {}
+ order = []
+ if func.func_code.co_argcount == 1:
+ def f(arg):
+ if arg not in cache:
+ if len(cache) > 20:
+ del cache[order.pop(0)]
+ cache[arg] = func(arg)
+ else:
+ order.remove(arg)
+ order.append(arg)
+ return cache[arg]
+ else:
+ def f(*args):
+ if args not in cache:
+ if len(cache) > 20:
+ del cache[order.pop(0)]
+ cache[args] = func(*args)
+ else:
+ order.remove(args)
+ order.append(args)
+ return cache[args]
+
+ return f
+
class propertycache(object):
def __init__(self, func):
self.func = func