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

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

View file

@ -1,6 +1,6 @@
#!/usr/bin/python3
# -*- mode: python; coding: utf-8 -*-
# Copyright (C) 2016 Laboratoire de Recherche et Développement de
# Copyright (C) 2016, 2018 Laboratoire de Recherche et Développement de
# l'EPITA.
#
# This file is part of Spot, a model checking library.
@ -22,5 +22,6 @@
import spot
a = spot.make_twa_graph(spot._bdd_dict)
a.set_acceptance(0, spot.acc_code("t"))
assert(a.prop_state_acc() == True);
a.set_acceptance(1, spot.acc_code("Fin(0)"))
assert(a.prop_state_acc() == 0);
assert(a.prop_state_acc() == spot.trival.maybe());