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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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23
src/tgbaalgos/ltl2taa.cc
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@ -70,15 +70,10 @@ namespace spot
to_free_.push_back(f);
}
init_ = f;
std::vector<const formula*> dst;
std::vector<const formula*> a;
// A little hack to define a sink
dst.push_back(unop::instance(unop::Finish, constant::true_instance()));
to_free_.push_back(dst[0]);
taa_tgba::transition* t = res_->create_transition(init_, dst);
std::vector<const formula*> empty;
taa_tgba::transition* t = res_->create_transition(init_, empty);
res_->add_condition(t, f->clone());
succ_state ss = { dst, f, a };
succ_state ss = { empty, f, empty };
succ_.push_back(ss);
}
@ -90,15 +85,10 @@ namespace spot
{
case constant::True:
{
std::vector<const formula*> dst;
std::vector<const formula*> a;
// A little hack to define a sink
dst.push_back(unop::instance(unop::Finish,
constant::true_instance()));
res_->create_transition(init_, dst);
succ_state ss = { dst, node, a };
std::vector<const formula*> empty;
res_->create_transition(init_, empty);
succ_state ss = { empty, node, empty };
succ_.push_back(ss);
to_free_.push_back(dst[0]);
return;
}
case constant::False:
@ -139,7 +129,6 @@ namespace spot
// Done in recurse
succ_ = v.succ_;
return;
case unop::Finish:
case unop::Closure:
case unop::NegClosure:
case unop::NegClosureMarked: