Lichen

Annotated lib/__builtins__/operator.py

927:246bee64c824
2021-06-27 Paul Boddie Merged the int-as-function branch.
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#!/usr/bin/env python
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"""
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Operator-related functions.
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Copyright (C) 2015, 2016 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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def _binary_op(this, other, op):
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    "Test the types of 'this' and 'other', performing 'op' if identical."
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    if this.__class__ is other.__class__:
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        return op(this, other)
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    else:
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        return NotImplemented
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def _negate(result):
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    "Negate any valid logical value."
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    if result is NotImplemented:
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        return result
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    else:
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        return not result
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