Lichen

Annotated lib/__builtins__/types.py

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2018-07-21 Paul Boddie file changeset files shortlog Invocations in parameter lists may require temporary storage for contexts and accessors, but the storage locations must be different. Otherwise, the code will generate a sequence-point warning. Here, distinct ranges for parameters in lists are introduced, and accessors are now also stored in arrays, permitting distinct storage.
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#!/usr/bin/env python
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"""
 
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Common type validation functions.
 
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Copyright (C) 2016, 2017 Paul Boddie <paul@boddie.org.uk>
 
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This program is free software; you can redistribute it and/or modify it under
 
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the terms of the GNU General Public License as published by the Free Software
 
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Foundation; either version 3 of the License, or (at your option) any later
 
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version.
 
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This program is distributed in the hope that it will be useful, but WITHOUT
 
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 
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FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 
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details.
 
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You should have received a copy of the GNU General Public License along with
 
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this program.  If not, see <http://www.gnu.org/licenses/>.
 
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"""
 
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from native import isinstance as _isinstance, is_int
 
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def check_int(i):
 
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    "Check the given int 'i'."
 
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    if not is_int(i):
 
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        raise ValueError(i)
 
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def check_string(s):
 
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    "Check the given string 's'."
 
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    if not _isinstance(s, basestring):
 
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        raise ValueError(s)
 
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