daikon.inv.unary.stringsequence
Class CommonStringSequence

Object
  Invariant
      UnaryInvariant
          SingleStringSequence
              CommonStringSequence

All Implemented Interfaces:

Serializable, Cloneable

public class CommonStringSequence
extends SingleStringSequence

Represents string sequences that contain a common subset. Prints as "{s1, s2, s3, ...} subset of x[]".

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class Invariant

Invariant.ClassVarnameComparator, Invariant.ClassVarnameFormulaComparator, Invariant.InvariantComparatorForPrinting, Invariant.Match

Field Summary

static boolean

dkconfig_enabled Boolean.

Fields inherited from class Invariant

CONFIDENCE_JUSTIFIED, CONFIDENCE_NEVER, CONFIDENCE_UNJUSTIFIED, debug, debugFlow, debugGuarding, debugIsObvious, debugIsWorthPrinting, debugPrint, debugPrintEquality, dkconfig_confidence_limit, dkconfig_fuzzy_ratio, dkconfig_simplify_define_predicates, falsified, isGuardingPredicate, min_mod_non_missing_samples, ppt, PROBABILITY_JUSTIFIED, PROBABILITY_NEVER, PROBABILITY_UNJUSTIFIED

Constructor Summary

protected

CommonStringSequence(PptSlice ppt)

Method Summary

InvariantStatus	add_modified(String[] a, int count) This method need not check for falsified; that is done by the caller.
InvariantStatus	check_modified(String[] a, int count)
protected double	computeConfidence() This method computes the confidence that this invariant occurred by chance.
boolean	enabled() returns whether or not this invariant is enabled
String	format_daikon()
String	format_using(OutputFormat format)
static CommonStringSequence	get_proto() Returns the prototype invariant for CommonStringSequence
protected CommonStringSequence	instantiate_dyn(PptSlice slice) instantiate an invariant on the specified slice
DiscardInfo	isObviousImplied()
boolean	isSameFormula(Invariant other)
String	repr() For printing invariants, there are two interfaces: repr gives a low-level representation (repr_prop also prints the confidence), and format gives a high-level representation for user output.

Methods inherited from class SingleStringSequence

add_unmodified, add, check_unmodified, check, valid_types, var

Methods inherited from class UnaryInvariant

resurrect_done

Methods inherited from class Invariant

add_sample, asInvClass, clear_falsified, clone_and_permute, clone, conf_is_ge, confidence_and, confidence_and, confidence_or, createGuardedInvariant, createGuardingPredicate, enoughSamples, falsify, find, format_too_few_samples, format_unimplemented, format, formatFuzzy, get_comparability, get_ni_suppressions, getConfidence, getGuardingList, getGuardingList, hasUninterestingConstant, instantiate_ok, instantiate, is_false, is_ni_suppressed, isActive, isAllPrestate, isExact, isExclusiveFormula, isInteresting, isObvious, isObviousDynamically_SomeInEquality, isObviousDynamically_SomeInEqualityHelper, isObviousDynamically, isObviousDynamically, isObviousStatically_AllInEquality, isObviousStatically_SomeInEquality, isObviousStatically_SomeInEqualityHelper, isObviousStatically, isObviousStatically, isReflexive, isSameInvariant, isValidEscExpression, isValidExpression, isWorthPrinting, justified, log, log, logDetail, logOn, match, merge, mergeFormulasOk, permute, prob_and, prob_and, prob_is_ge, prob_or, repCheck, repr_prob, resurrect, simplify_format_double, simplify_format_long, simplify_format_string, state_match, toString, toString, transfer, usesVar, usesVar, usesVarDerived, varNames

Methods inherited from class Object

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

Field Detail

dkconfig_enabled

public static boolean dkconfig_enabled

Boolean. True iff CommonStringSequence invariants should be considered.

Constructor Detail

CommonStringSequence

protected CommonStringSequence(PptSlice ppt)

Method Detail

get_proto

public static CommonStringSequence get_proto()

Returns the prototype invariant for CommonStringSequence

enabled

public boolean enabled()

returns whether or not this invariant is enabled

Overrides:

enabled in class Invariant

instantiate_dyn

protected CommonStringSequence instantiate_dyn(PptSlice slice)

instantiate an invariant on the specified slice

Overrides:

instantiate_dyn in class Invariant

Returns:

the new invariant

repr

public String repr()

Description copied from class: Invariant

For printing invariants, there are two interfaces: repr gives a low-level representation (repr_prop also prints the confidence), and format gives a high-level representation for user output.

Overrides:

repr in class Invariant

format_using

public String format_using(OutputFormat format)

Specified by:

format_using in class Invariant

format_daikon

public String format_daikon()

check_modified

public InvariantStatus check_modified(String[] a,
                                      int count)

Specified by:

check_modified in class SingleStringSequence

add_modified

public InvariantStatus add_modified(String[] a,
                                    int count)

Description copied from class: SingleStringSequence

This method need not check for falsified; that is done by the caller.

Specified by:

add_modified in class SingleStringSequence

computeConfidence

protected double computeConfidence()

Description copied from class: Invariant

This method computes the confidence that this invariant occurred by chance. Users should use getConfidence() instead.

Specified by:

computeConfidence in class Invariant

See Also:

Invariant.getConfidence()

isObviousImplied

public DiscardInfo isObviousImplied()

isSameFormula

public boolean isSameFormula(Invariant other)

Overrides:

isSameFormula in class Invariant

Returns:

true iff the two invariants represent the same mathematical formula. Does not consider the context such as variable names, confidences, sample counts, value counts, or related quantities. As a rule of thumb, if two invariants format the same, this method returns true. Furthermore, in many cases, if an invariant does not involve computed constants (as "x>c" and "y=ax+b" do for constants a, b, and c), then this method vacuously returns true.