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trival: prefer a global operator== relying on implicit conversion

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Hopefully fixes #359.

* spot/misc/trival.hh: Declare a global operator==(trival,trival) that
replace the specialized operator==(bool,trival), and the in class
trival::operator(trival), thanks to the implicit construction from
bool to trival.  Make the repr_t/value_t constructor explicit, are
those are mostly internal to the library and may cause conflicts.
* spot/twa/twa.hh: Adjust to construct trival explicitly.
* python/spot/impl.i: Since Swig/Python does not support global
comparison operators, implement a member version, supporting
only __eq__(trival,bool) as before.
* tests/python/setacc.py: Adjust erroneous code.
* tests/python/trival.py: Add test cases.
This commit is contained in:
Alexandre Duret-Lutz 2018-07-03 23:28:41 +02:00
parent 43d426aaae
commit 0411099506
5 changed files with 52 additions and 33 deletions
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7
tests/python/trival.py
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@ -1,5 +1,5 @@
# -*- mode: python; coding: utf-8 -*-
# Copyright (C) 2016 Laboratoire de Recherche et Développement
# Copyright (C) 2016, 2018 Laboratoire de Recherche et Développement
# de l'Epita
#
# This file is part of Spot, a model checking library.
@ -26,11 +26,16 @@ v4 = spot.trival_maybe()
assert v1 != v2
assert v1 != v3
assert v2 != v3
assert v2 == spot.trival(spot.trival.no_value)
assert v2 != spot.trival(spot.trival.yes_value)
assert v4 != v2
assert v4 != v3
assert v2 == False
assert True == v3
assert v2 != True
assert False != v3
assert v4 == spot.trival_maybe()
assert v4 == spot.trival(spot.trival.maybe_value)
assert v3
assert -v2
assert not -v1