/*
* Kodkod -- Copyright (c) 2005-present, Emina Torlak
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package kodkod.engine.bool;
/**
* Visits {@link kodkod.engine.bool.BooleanFormula boolean formulas}.
* In addition to passing themselves as the argument to the visitor,
* the boolean values also pass along satelite information of type A.
*
* @author Emina Torlak
*/
public interface BooleanVisitor<T, A> {
/**
* Visits the multigate and returns the result.
* @return the result of visiting the given multigate
*/
public T visit(MultiGate multigate, A arg);
/**
* Visits the if-then-else gate and returns the result.
* @return the result of visiting the given ITEGate
*/
public T visit(ITEGate ite, A arg);
/**
* Visits the inverter and returns the result.
* @return the result of visiting the given inverter
*/
public T visit(NotGate negation, A arg);
/**
* Visits the variable and returns the result.
* @return the result of visiting the given variable
*/
public T visit(BooleanVariable variable, A arg);
}