Mercurial > hg
comparison mercurial/util.py @ 28832:f5ff10f6fa6b
util: use __code__ (available since py2.6)
author | timeless <timeless@mozdev.org> |
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date | Tue, 29 Mar 2016 17:43:23 +0000 |
parents | 59dd920c0ddc |
children | 68a946e83188 |
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28831:6b86ce3e3576 | 28832:f5ff10f6fa6b |
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448 ) | 448 ) |
449 | 449 |
450 def cachefunc(func): | 450 def cachefunc(func): |
451 '''cache the result of function calls''' | 451 '''cache the result of function calls''' |
452 # XXX doesn't handle keywords args | 452 # XXX doesn't handle keywords args |
453 if func.func_code.co_argcount == 0: | 453 if func.__code__.co_argcount == 0: |
454 cache = [] | 454 cache = [] |
455 def f(): | 455 def f(): |
456 if len(cache) == 0: | 456 if len(cache) == 0: |
457 cache.append(func()) | 457 cache.append(func()) |
458 return cache[0] | 458 return cache[0] |
459 return f | 459 return f |
460 cache = {} | 460 cache = {} |
461 if func.func_code.co_argcount == 1: | 461 if func.__code__.co_argcount == 1: |
462 # we gain a small amount of time because | 462 # we gain a small amount of time because |
463 # we don't need to pack/unpack the list | 463 # we don't need to pack/unpack the list |
464 def f(arg): | 464 def f(arg): |
465 if arg not in cache: | 465 if arg not in cache: |
466 cache[arg] = func(arg) | 466 cache[arg] = func(arg) |
698 | 698 |
699 def lrucachefunc(func): | 699 def lrucachefunc(func): |
700 '''cache most recent results of function calls''' | 700 '''cache most recent results of function calls''' |
701 cache = {} | 701 cache = {} |
702 order = collections.deque() | 702 order = collections.deque() |
703 if func.func_code.co_argcount == 1: | 703 if func.__code__.co_argcount == 1: |
704 def f(arg): | 704 def f(arg): |
705 if arg not in cache: | 705 if arg not in cache: |
706 if len(cache) > 20: | 706 if len(cache) > 20: |
707 del cache[order.popleft()] | 707 del cache[order.popleft()] |
708 cache[arg] = func(arg) | 708 cache[arg] = func(arg) |