comparison mercurial/localrepo.py @ 8527:f9a80054dd3c

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

8526:f78eadbb5769

    @propertycache
    def dirstate(self):
        return dirstate.dirstate(self.opener, self.ui, self.root)

    def __getitem__(self, changeid):
        if changeid == None:
            return context.workingctx(self)
        return context.changectx(self, changeid)

    def __nonzero__(self):
        return True

        m = self.changelog.nodemap
        search = []
        fetch = set()
        seen = set()
        seenbranch = set()
        if base == None:
            base = {}

        if not heads:
            heads = remote.heads()

        exist on the remote side.
        If a list of heads is specified, return only nodes which are heads
        or ancestors of these heads, and return a second element which
        contains all remote heads which get new children.
        """
        if base == None:
            base = {}
            self.findincoming(remote, base, heads, force=force)

        self.ui.debug(_("common changesets up to ")
                      + " ".join(map(short, base.keys())) + "\n")

8527:f9a80054dd3c

    @propertycache
    def dirstate(self):
        return dirstate.dirstate(self.opener, self.ui, self.root)

    def __getitem__(self, changeid):
        if changeid is None:
            return context.workingctx(self)
        return context.changectx(self, changeid)

    def __nonzero__(self):
        return True

        m = self.changelog.nodemap
        search = []
        fetch = set()
        seen = set()
        seenbranch = set()
        if base is None:
            base = {}

        if not heads:
            heads = remote.heads()

        exist on the remote side.
        If a list of heads is specified, return only nodes which are heads
        or ancestors of these heads, and return a second element which
        contains all remote heads which get new children.
        """
        if base is None:
            base = {}
            self.findincoming(remote, base, heads, force=force)

        self.ui.debug(_("common changesets up to ")
                      + " ".join(map(short, base.keys())) + "\n")