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Implements spot::ltl::destroy() and exercise it.

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* src/ltlast/atomic_prop.hh: Declare instance_count().
* src/ltlast/binop.hh, src/ltlast/unop.hh, src/ltlast/multop.hh:
Likewise.  Also, really inherit for ref_formula this time.
* src/ltlast/atomic_prop.cc, src/ltlast/binop.cc,
src/ltlast/unop.cc, src/ltlast/multop.cc: On destruction, suppress
the instance from the instance map.  Implement instance_count().
* src/ltlast/formula.cc, src/ltlast/formula.hh,
src/ltlast/ref_formula.cc, src/ltlast/ref_formula.hh: Add virtual
destructors.
* src/ltlparse/ltlparse.yy: Recover from binary operators with
missing right hand operand (the point is just to destroy the
the left hand operand).
* src/ltltest/equals.cc, src/ltltest/readltl.cc,
src/ltltest/tostring.cc: Destroy used formulae.  Make sure
instance_count()s are null are the end.
* src/ltltest/parseerr.test: Adjust expected result, now
that the parser lnows about missing right hand operands.
* src/ltlvisit/destroy.hh, src/ltlvisit/destroy.cc,
src/ltlvisit/postfix.hh, src/ltlvisit/postfix.cc: New files.
* src/ltlvisit/Makefile.am (libltlvisit_la_SOURCES): Add them.
* src/ltlvisit/lunabbrev.cc (Xor, Equiv): Clone formulae
occurring twice in the rewritten expression.
This commit is contained in:
Alexandre Duret-Lutz 2003-05-15 18:06:54 +00:00
parent 5f6d8b6234
commit 9123e56ff9
24 changed files with 382 additions and 24 deletions
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38
src/ltlvisit/postfix.hh Normal file
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#ifndef SPOT_LTLVISIT_POSTFIX_HH
# define SPOT_LTLVISIT_POSTFIX_HH
#include "ltlast/formula.hh"
#include "ltlast/visitor.hh"
namespace spot
{
namespace ltl
{
/// \brief Apply a algorithm on each node of an AST,
/// during a postfix traversal.
///
/// Override one or more of the postifix_visitor::doit methods
/// with the algorithm to apply.
class postfix_visitor : public visitor
{
public:
postfix_visitor();
virtual ~postfix_visitor();
void visit(atomic_prop* ap);
void visit(unop* uo);
void visit(binop* bo);
void visit(multop* mo);
void visit(constant* c);
virtual void doit(atomic_prop* ap);
virtual void doit(unop* uo);
virtual void doit(binop* bo);
virtual void doit(multop* mo);
virtual void doit(constant* c);
virtual void doit_default(formula* f);
};
}
}
#endif // SPOT_LTLVISIT_POSTFIX_HH