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  • Committer: John Arbash Meinel
  • Date: 2008-03-14 11:55:52 UTC
  • mto: This revision was merged to the branch mainline in revision 3280.
  • Revision ID: john@arbash-meinel.com-20080314115552-37na0d823hfrkm1l
Fix up docstring since FrozenHeadsCache doesn't let you mutate the result.

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bzrlib/graph.py
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    def heads(self, keys):
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        """Return the heads of keys.
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        This matches the API of Graph.heads(), specifically the return value is
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        a set which can be mutated, and ordering of the input is not preserved
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        in the output.
 
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        Similar to Graph.heads(). The main difference is that the return value
 
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        is a frozen set which cannot be mutated.
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        :see also: Graph.heads.
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        :param keys: The keys to calculate heads for.
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        :return: A set containing the heads, which may be mutated without
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            affecting future lookups.
 
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        :return: A frozenset containing the heads.
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        """
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        keys = frozenset(keys)
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        try: