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add comments in cachefunc
authorBenoit Boissinot <benoit.boissinot@ens-lyon.org>
Fri, 22 Sep 2006 17:58:22 +0200
changeset 3147 97420a49188d
parent 3146 e69a0cbe268e
child 3148 adb246ce6736
add comments in cachefunc
mercurial/util.py file | annotate | diff | comparison | revisions 
--- a/mercurial/util.py	Fri Sep 22 08:19:25 2006 -0700
+++ b/mercurial/util.py	Fri Sep 22 17:58:22 2006 +0200
@@ -26,8 +26,11 @@
 
 def cachefunc(func):
     '''cache the result of function calls'''
+    # XXX doesn't handle keywords args
     cache = {}
     if func.func_code.co_argcount == 1:
+        # we gain a small amount of time because
+        # we don't need to pack/unpack the list
         def f(arg):
             if arg not in cache:
                 cache[arg] = func(arg)
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