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# Copyright (C) 2009 Canonical Ltd
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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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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Interface thunk for a StaticTuple implementation."""
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from bzrlib import debug
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from bzrlib._static_tuple_c import StaticTuple
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except ImportError, e:
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from bzrlib import osutils
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osutils.failed_to_load_extension(e)
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from bzrlib._static_tuple_py import StaticTuple
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def expect_static_tuple(obj):
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"""Check if the passed object is a StaticTuple.
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Cast it if necessary, but if the 'static_tuple' debug flag is set, raise an
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As apis are improved, we will probably eventually stop calling this as it
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adds overhead we shouldn't need.
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if 'static_tuple' not in debug.debug_flags:
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return StaticTuple.from_sequence(obj)
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if type(obj) is not StaticTuple:
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raise TypeError('We expected a StaticTuple not a %s' % (type(obj),))
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"""Ensure that the object and any referenced objects are plain tuples.
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:param obj: a list, tuple or StaticTuple
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:return: a plain tuple instance, with all children also being tuples.
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if isinstance(item, (tuple, list, StaticTuple)):
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item = as_tuples(item)
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removed
bzrlib/static_tuple.py
