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  • Committer: John Arbash Meinel
  • Date: 2009-10-13 18:00:16 UTC
  • mto: This revision was merged to the branch mainline in revision 4755.
  • Revision ID: john@arbash-meinel.com-20091013180016-y9ciypkm8lor58fx
Implement StaticTuple.from_sequence()

This allows casting from something that *might* be a StaticTuple
into something that is definitely a StaticTuple, without having to
create a new instance.

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bzrlib/graph.py
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# Copyright (C) 2007-2010 Canonical Ltd
 
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# Copyright (C) 2007, 2008, 2009 Canonical Ltd
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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    return result
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class GraphThunkIdsToKeys(object):
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    """Forwards calls about 'ids' to be about keys internally."""
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    def __init__(self, graph):
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        self._graph = graph
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    def topo_sort(self):
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        return [r for (r,) in self._graph.topo_sort()]
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    def heads(self, ids):
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        """See Graph.heads()"""
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        as_keys = [(i,) for i in ids]
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        head_keys = self._graph.heads(as_keys)
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        return set([h[0] for h in head_keys])
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    def merge_sort(self, tip_revision):
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        return self._graph.merge_sort((tip_revision,))
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_counters = [0,0,0,0,0,0,0]
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try:
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    from bzrlib._known_graph_pyx import KnownGraph