gov.nasa.jpf.vm.choice

Class TypedObjectChoice

java.lang.Object

gov.nasa.jpf.vm.ChoiceGeneratorBase<java.lang.Integer>

gov.nasa.jpf.vm.choice.TypedObjectChoice

All Implemented Interfaces:

ChoiceGenerator<java.lang.Integer>, ReferenceChoiceGenerator, java.lang.Cloneable

public class TypedObjectChoice
extends ChoiceGeneratorBase<java.lang.Integer>
implements ReferenceChoiceGenerator

a choice generator that enumerates the set of all objects of a certain type. This is a replacement for the old 'Verify.randomObject'

Field Summary

Fields

Modifier and Type	Field and Description
protected int	count
protected java.lang.String	type
protected int[]	values

Fields inherited from class gov.nasa.jpf.vm.ChoiceGeneratorBase

attr, id, idRef, insn, isCascaded, isDone, MARKER, prev, random, stateId, ti

Constructor Summary

Constructors

Constructor and Description
TypedObjectChoice(Config conf, java.lang.String id)

Method Summary

Modifier and Type	Method and Description
void	advance() advance to the next choice.
java.lang.Integer	getChoice(int idx) explicit choice enumeration.
java.lang.Class<java.lang.Integer>	getChoiceType()
java.lang.Integer	getNextChoice()
int	getProcessedNumberOfChoices()
int	getTotalNumberOfChoices()
boolean	hasMoreChoices()
TypedObjectChoice	randomize() turn the order of choices random (if it isn't already).
void	reset() this has to reset the CG to its initial state, which includes resetting 'isDone'
java.lang.String	toString()

Methods inherited from class gov.nasa.jpf.vm.ChoiceGeneratorBase

addAttr, advance, attrIterator, attrIterator, clone, deepClone, getAll, getAllChoices, getAllOfType, getAttr, getAttr, getCascade, getCascadedParent, getId, getIdRef, getInsn, getNextAttr, getNumberOfParents, getPreviousChoiceGenerator, getPreviousChoiceGeneratorOfType, getProcessedChoices, getSourceLocation, getStateId, getThreadInfo, getUnprocessedChoices, hasAttr, hasAttr, hasAttrValue, init, isCascaded, isDone, isProcessed, isSchedulingPoint, removeAttr, reorder, replaceAttr, select, setAttr, setCascaded, setContext, setCurrent, setDone, setId, setIdRef, setInsn, setPreviousChoiceGenerator, setStateId, setThreadInfo, supportsReordering, useRandomization

Methods inherited from class java.lang.Object

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

Methods inherited from interface gov.nasa.jpf.vm.ChoiceGenerator

addAttr, advance, attrIterator, attrIterator, clone, deepClone, getAll, getAllChoices, getAllOfType, getAttr, getAttr, getCascade, getCascadedParent, getId, getIdRef, getInsn, getNextAttr, getNumberOfParents, getPreviousChoiceGenerator, getPreviousChoiceGeneratorOfType, getProcessedChoices, getSourceLocation, getStateId, getThreadInfo, getUnprocessedChoices, hasAttr, hasAttr, isCascaded, isDone, isProcessed, isSchedulingPoint, removeAttr, reorder, replaceAttr, select, setAttr, setCascaded, setContext, setCurrent, setDone, setId, setIdRef, setInsn, setPreviousChoiceGenerator, setStateId, setThreadInfo, supportsReordering

Field Detail

type

protected java.lang.String type

values

protected int[] values

count

protected int count

Constructor Detail

TypedObjectChoice

public TypedObjectChoice(Config conf,
                         java.lang.String id)

Method Detail

getChoice

public java.lang.Integer getChoice(int idx)

Description copied from class: ChoiceGeneratorBase

explicit choice enumeration. Override if supported

Specified by:

getChoice in interface ChoiceGenerator<java.lang.Integer>

Overrides:

getChoice in class ChoiceGeneratorBase<java.lang.Integer>

Returns:

choice value or null if not supported

advance

public void advance()

Description copied from interface: ChoiceGenerator

advance to the next choice. This is the only method that really advances our enumeration

Specified by:

advance in interface ChoiceGenerator<java.lang.Integer>

getProcessedNumberOfChoices

public int getProcessedNumberOfChoices()

Specified by:

getProcessedNumberOfChoices in interface ChoiceGenerator<java.lang.Integer>

getTotalNumberOfChoices

public int getTotalNumberOfChoices()

Specified by:

getTotalNumberOfChoices in interface ChoiceGenerator<java.lang.Integer>

hasMoreChoices

public boolean hasMoreChoices()

Specified by:

hasMoreChoices in interface ChoiceGenerator<java.lang.Integer>

reset

public void reset()

Description copied from interface: ChoiceGenerator

this has to reset the CG to its initial state, which includes resetting 'isDone'

Specified by:

reset in interface ChoiceGenerator<java.lang.Integer>

getNextChoice

public java.lang.Integer getNextChoice()

Specified by:

getNextChoice in interface ChoiceGenerator<java.lang.Integer>

toString

public java.lang.String toString()

Overrides:

toString in class ChoiceGeneratorBase<java.lang.Integer>

randomize

public TypedObjectChoice randomize()

Description copied from interface: ChoiceGenerator

turn the order of choices random (if it isn't already). Only drawback of this generic method (which might be a decorator factory) is that our type layer (e.g. IntChoiceGenerator) has to guarantee type safety. But hey - this is the first case where we can use covariant return types! NOTES: - this method may alter this ChoiceGenerator and return that or return a new "decorated" version. - random data can be read from the "Random random" field in this class.

Specified by:

randomize in interface ChoiceGenerator<java.lang.Integer>

Overrides:

randomize in class ChoiceGeneratorBase<java.lang.Integer>

getChoiceType

public java.lang.Class<java.lang.Integer> getChoiceType()

Specified by:

getChoiceType in interface ChoiceGenerator<java.lang.Integer>