Mercurial > public > mercurial-scm > hg-stable

comparison mercurial/localrepo.py @ 8527:f9a80054dd3c

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use 'x is None' instead of 'x == None' The built-in None object is a singleton and it is therefore safe to compare memory addresses with is. It is also faster, how much depends on the object being compared. For a simple type like str I get: | s = "foo" | s = None ----------+-----------+---------- s == None | 0.25 usec | 0.21 usec s is None | 0.17 usec | 0.17 usec
author Martin Geisler <mg@lazybytes.net>
date Wed, 20 May 2009 00:52:46 +0200
parents 865e08a7d6b0
children 810387f59696
comparison
equal deleted inserted replaced
8526:f78eadbb5769 8527:f9a80054dd3c
105 @propertycache 105 @propertycache
106 def dirstate(self): 106 def dirstate(self):
107 return dirstate.dirstate(self.opener, self.ui, self.root) 107 return dirstate.dirstate(self.opener, self.ui, self.root)
108 108
109 def __getitem__(self, changeid): 109 def __getitem__(self, changeid):
110 if changeid == None: 110 if changeid is None:
111 return context.workingctx(self) 111 return context.workingctx(self)
112 return context.changectx(self, changeid) 112 return context.changectx(self, changeid)
113 113
114 def __nonzero__(self): 114 def __nonzero__(self):
115 return True 115 return True
1207 m = self.changelog.nodemap 1207 m = self.changelog.nodemap
1208 search = [] 1208 search = []
1209 fetch = set() 1209 fetch = set()
1210 seen = set() 1210 seen = set()
1211 seenbranch = set() 1211 seenbranch = set()
1212 if base == None: 1212 if base is None:
1213 base = {} 1213 base = {}
1214 1214
1215 if not heads: 1215 if not heads:
1216 heads = remote.heads() 1216 heads = remote.heads()
1217 1217
1339 exist on the remote side. 1339 exist on the remote side.
1340 If a list of heads is specified, return only nodes which are heads 1340 If a list of heads is specified, return only nodes which are heads
1341 or ancestors of these heads, and return a second element which 1341 or ancestors of these heads, and return a second element which
1342 contains all remote heads which get new children. 1342 contains all remote heads which get new children.
1343 """ 1343 """
1344 if base == None: 1344 if base is None:
1345 base = {} 1345 base = {}
1346 self.findincoming(remote, base, heads, force=force) 1346 self.findincoming(remote, base, heads, force=force)
1347 1347
1348 self.ui.debug(_("common changesets up to ") 1348 self.ui.debug(_("common changesets up to ")
1349 + " ".join(map(short, base.keys())) + "\n") 1349 + " ".join(map(short, base.keys())) + "\n")