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spot::ltl::formula Class Reference

An LTL formula. More...

#include <formula.hh>

Inheritance diagram for spot::ltl::formula:

Inheritance graph
[legend]
List of all members.

Public Member Functions

virtual ~formula ()
virtual void accept (visitor &v)=0
 Entry point for vspot::ltl::visitor instances.

virtual void accept (const_visitor &v) const=0
 Entry point for vspot::ltl::const_visitor instances.

formularef ()
 clone this node


Static Public Member Functions

void unref (formula *f)
 release this node


Protected Member Functions

virtual void ref_ ()
 increment reference counter if any

virtual bool unref_ ()
 decrement reference counter if any, return true when the instance must be deleted (usually when the counter hits 0).


Detailed Description

An LTL formula.

The only way you can work with a formula is to build a spot::ltl::visitor or spot::ltl::const_visitor.


Constructor & Destructor Documentation

virtual spot::ltl::formula::~formula  )  [virtual]
 


Member Function Documentation

virtual void spot::ltl::formula::accept const_visitor v  )  const [pure virtual]
 

Entry point for vspot::ltl::const_visitor instances.

Implemented in spot::ltl::atomic_prop, spot::ltl::binop, spot::ltl::constant, spot::ltl::multop, and spot::ltl::unop.

virtual void spot::ltl::formula::accept visitor v  )  [pure virtual]
 

Entry point for vspot::ltl::visitor instances.

Implemented in spot::ltl::atomic_prop, spot::ltl::binop, spot::ltl::constant, spot::ltl::multop, and spot::ltl::unop.

formula* spot::ltl::formula::ref  ) 
 

clone this node

This increments the reference counter of this node (if one is used). You should almost never use this method directly as it doesn't touch the children. If you want to clone a whole formula, use spot::ltl::clone() instead.

virtual void spot::ltl::formula::ref_  )  [protected, virtual]
 

increment reference counter if any

Reimplemented in spot::ltl::ref_formula.

void spot::ltl::formula::unref formula f  )  [static]
 

release this node

This decrements the reference counter of this node (if one is used) and can free the object. You should almost never use this method directly as it doesn't touch the children. If you want to release a whole formula, use spot::ltl::destroy() instead.

virtual bool spot::ltl::formula::unref_  )  [protected, virtual]
 

decrement reference counter if any, return true when the instance must be deleted (usually when the counter hits 0).

Reimplemented in spot::ltl::ref_formula.


The documentation for this class was generated from the following file:
Generated on Tue Jan 13 18:22:39 2004 for spot by doxygen 1.3.5