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revset: cache smartset's min/max

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As the content of a smartset never changes, min and max will never change
either.  This will save us time when this function is called multiple times.
This is relevant for issue4782 but does not fix it.
This commit is contained in:
Pierre-Yves David 2015-08-27 17:57:33 -07:00
parent 52eae47139
commit 1983912bde
1 changed files with 2 additions and 0 deletions
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2
mercurial/revset.py
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@ -2885,6 +2885,7 @@ class abstractsmartset(object):
"""True if the set will iterate in descending order"""
raise NotImplementedError()
@util.cachefunc
def min(self):
"""return the minimum element in the set"""
if self.fastasc is not None:
@ -2893,6 +2894,7 @@ class abstractsmartset(object):
raise ValueError('arg is an empty sequence')
return min(self)
@util.cachefunc
def max(self):
"""return the maximum element in the set"""
if self.fastdesc is not None: