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spot::ltl::ref_formula Class Reference
[LTL Abstract Syntax Tree]

A reference-counted LTL formula. More...

#include <ltlast/refformula.hh>

Inheritance diagram for spot::ltl::ref_formula:

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List of all members.

Public Member Functions

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
const std::string & dump () const
 Return a canonic representation of the formula.
const size_t hash () const
 Return a hash_key for the formula.

Static Public Member Functions

static void unref (formula *f)
 release this node

Protected Member Functions

virtual ~ref_formula ()
 ref_formula ()
void ref_ ()
 increment reference counter if any
bool unref_ ()
 decrement reference counter if any, return true when the instance must be deleted (usually when the counter hits 0).
unsigned ref_count_ ()
 Number of references to this formula.
void set_key_ ()
 Compute key_ from dump_.

Protected Attributes

std::string dump_
 The canonic representation of the formula.
size_t hash_key_
 The hash key of this formula.

Private Attributes

unsigned ref_counter_

Detailed Description

A reference-counted LTL formula.


Constructor & Destructor Documentation

virtual spot::ltl::ref_formula::~ref_formula  )  [protected, virtual]
 

spot::ltl::ref_formula::ref_formula  )  [protected]
 


Member Function Documentation

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

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, inherited]
 

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.

const std::string& spot::ltl::formula::dump  )  const [inherited]
 

Return a canonic representation of the formula.

const size_t spot::ltl::formula::hash  )  const [inline, inherited]
 

Return a hash_key for the formula.

formula* spot::ltl::formula::ref  )  [inherited]
 

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.

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

increment reference counter if any

Reimplemented from spot::ltl::formula.

unsigned spot::ltl::ref_formula::ref_count_  )  [protected]
 

Number of references to this formula.

void spot::ltl::formula::set_key_  )  [protected, inherited]
 

Compute key_ from dump_.

Should be called once in each object, after dump_ has been set.

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

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.

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

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

Reimplemented from spot::ltl::formula.


Member Data Documentation

std::string spot::ltl::formula::dump_ [protected, inherited]
 

The canonic representation of the formula.

size_t spot::ltl::formula::hash_key_ [protected, inherited]
 

The hash key of this formula.

Initialized by set_key_().

unsigned spot::ltl::ref_formula::ref_counter_ [private]
 


The documentation for this class was generated from the following file:
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Generated on Mon Jan 31 12:56:10 2005 for spot by doxygen 1.4.0