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ltl: get rid of ltl::ref_formula

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Instead, manage all reference counting from ltl::formula.
It ridance of virtual calls to clone() and destroy() easily compensate
the extra test in destroy() to not delete constant nodes.

* src/ltlast/refformula.cc, src/ltlast/refformula.hh: Delete.
* src/ltlast/Makefile.am, wrap/python/spot.i: Adjust.
* src/ltlast/atomic_prop.cc, src/ltlast/atomic_prop.hh,
src/ltlast/binop.cc, src/ltlast/binop.hh, src/ltlast/bunop.cc,
src/ltlast/bunop.hh, src/ltlast/formula.cc, src/ltlast/formula.hh,
src/ltlast/multop.cc, src/ltlast/multop.hh, src/ltlast/unop.cc,
src/ltlast/unop.hh: Ajust the reference counting code.
This commit is contained in:
Alexandre Duret-Lutz 2014-10-25 16:47:44 +02:00
parent d79da2e941
commit 8d947a8782
16 changed files with 70 additions and 210 deletions
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4
src/ltlast/binop.hh
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@ -28,7 +28,7 @@
#ifndef SPOT_LTLAST_BINOP_HH
# define SPOT_LTLAST_BINOP_HH
#include "refformula.hh"
#include "formula.hh"
#include <map>
#include <iosfwd>
#include <tuple>
@ -40,7 +40,7 @@ namespace spot
/// \ingroup ltl_ast
/// \brief Binary operator.
class SPOT_API binop : public ref_formula
class SPOT_API binop : public formula
{
public:
/// Different kinds of binary opertaors