de.uka.ilkd.key.strategy.feature

Class NonDuplicateAppModPositionFeature

java.lang.Object

de.uka.ilkd.key.strategy.feature.BinaryFeature

de.uka.ilkd.key.strategy.feature.BinaryTacletAppFeature

de.uka.ilkd.key.strategy.feature.AbstractNonDuplicateAppFeature

de.uka.ilkd.key.strategy.feature.NonDuplicateAppFeature

de.uka.ilkd.key.strategy.feature.NonDuplicateAppModPositionFeature

All Implemented Interfaces:

Feature

public class NonDuplicateAppModPositionFeature
extends NonDuplicateAppFeature

Binary feature that returns zero iff a certain Taclet app has not already been performed

Field Summary

Fields

Modifier and Type	Field and Description
static Feature	INSTANCE

Fields inherited from class de.uka.ilkd.key.strategy.feature.BinaryFeature

TOP_COST, ZERO_COST

Constructor Summary

Constructors

Constructor and Description
NonDuplicateAppModPositionFeature()

Method Summary

Modifier and Type	Method and Description
protected boolean	comparePio(TacletApp newApp, TacletApp oldApp, PosInOccurrence newPio, PosInOccurrence oldPio) Compare whether two PosInOccurrences are equal.
boolean	filter(TacletApp app, PosInOccurrence pos, Goal goal) Compute whether the result of the feature is zero (true) or infinity (false)

Methods inherited from class de.uka.ilkd.key.strategy.feature.NonDuplicateAppFeature

containsRuleApp, semiSequentContains

Methods inherited from class de.uka.ilkd.key.strategy.feature.AbstractNonDuplicateAppFeature

noDuplicateFindTaclet, sameApplication

Methods inherited from class de.uka.ilkd.key.strategy.feature.BinaryTacletAppFeature

filter

Methods inherited from class de.uka.ilkd.key.strategy.feature.BinaryFeature

computeCost

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INSTANCE

public static final Feature INSTANCE

Constructor Detail

NonDuplicateAppModPositionFeature

public NonDuplicateAppModPositionFeature()

Method Detail

filter

public boolean filter(TacletApp app,
                      PosInOccurrence pos,
                      Goal goal)

Description copied from class: BinaryTacletAppFeature

Compute whether the result of the feature is zero (true) or infinity (false)

Overrides:

filter in class NonDuplicateAppFeature

Parameters:

app - the TacletApp

pos - position where app is to be applied

goal - the goal on which app is to be applied

Returns:

true iff the the result of the feature is supposed to be zero.

comparePio

protected boolean comparePio(TacletApp newApp,
                             TacletApp oldApp,
                             PosInOccurrence newPio,
                             PosInOccurrence oldPio)

Description copied from class: AbstractNonDuplicateAppFeature

Compare whether two PosInOccurrences are equal. This can be done using equals or eqEquals (checking for same or equal formulas), which has to be decided by the subclasses

Overrides:

comparePio in class NonDuplicateAppFeature