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ltl: remove the useless Finish operator

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* src/ltlast/unop.cc, src/ltlast/unop.hh src/ltlvisit/lbt.cc,
src/ltlvisit/mark.cc, src/ltlvisit/simplify.cc,
src/ltlvisit/tostring.cc, src/ltlvisit/tunabbrev.cc,
src/tgba/formula2bdd.cc, src/tgbaalgos/ltl2tgba_fm.cc: Remove Finish.
* src/tgbaalgos/ltl2taa.cc: Remove Finish, and simply use an empty
destination to code the sink.
This commit is contained in:
Alexandre Duret-Lutz 2014-12-04 17:48:42 +01:00
parent ad77145496
commit a0d9268fda
10 changed files with 10 additions and 64 deletions
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20
src/ltlast/unop.cc
View file

@ -98,20 +98,6 @@ namespace spot
is.syntactic_persistence = is.syntactic_safety;
is.accepting_eword = false;
break;
case Finish:
is.not_marked = true;
is.boolean = false;
is.ltl_formula = false;
is.psl_formula = false;
is.sere_formula = false;
is.finite = false;
is.syntactic_safety = false;
is.syntactic_guarantee = false;
is.syntactic_obligation = false;
is.syntactic_recurrence = false;
is.syntactic_persistence = false;
is.accepting_eword = false;
break;
case NegClosure:
case NegClosureMarked:
is.not_marked = (op == NegClosure);
@ -181,8 +167,6 @@ namespace spot
return "F";
case G:
return "G";
case Finish:
return "Finish";
case Closure:
return "Closure";
case NegClosure:
@ -272,10 +256,6 @@ namespace spot
assert(child != constant::empty_word_instance());
break;
case Finish:
// No simplifications for Finish.
break;
case Closure:
// {0} = 0, {1} = 1, {b} = b
if (child->is_boolean())

2
src/ltlast/unop.hh
View file

@ -42,8 +42,6 @@ namespace spot
enum type {
// LTL
Not, X, F, G,
// ELTL
Finish,
// Closure
Closure, NegClosure, NegClosureMarked
};