blob: f08e9b72462fe447ccb13c3715f749eaf4d42e00 [file] [log] [blame]
# Copyright 2013 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
def memoize(fn):
'''Decorates |fn| to memoize.
memory = {}
def impl(*args, **optargs):
full_args = args + tuple(optargs.items())
if full_args not in memory:
memory[full_args] = fn(*args, **optargs)
return memory[full_args]
return impl