Package daikon.inv.binary.twoScalar

Class NumericFloat.ZeroTrack

Object

Invariant

BinaryInvariant

TwoFloat

NumericFloat

ZeroTrack

All Implemented Interfaces:

Serializable, Cloneable

Enclosing class:

NumericFloat

public static class NumericFloat.ZeroTrack
extends NumericFloat

Represents the zero tracks invariant between two double scalars; that is, when x is zero, y is also zero. Prints as x = 0 => y = 0.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class NumericFloat

NumericFloat.Divides, NumericFloat.Square, NumericFloat.ZeroTrack

Nested classes/interfaces inherited from class Invariant

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

Field Summary

Fields

Modifier and Type	Field	Description
static boolean	dkconfig_enabled	Boolean.

Fields inherited from class NumericFloat

var1_eq_0, var1_eq_1, var1_eq_minus_1, var1_eq_var2, var1_ge_0, var1_le_var2, var1_ne_0, var2_eq_0, var2_eq_1, var2_eq_minus_1, var2_eq_var1, var2_ge_0, var2_ne_0

Fields inherited from class TwoFloat

swap

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, invariantEnabledDefault, isGuardingPredicate, min_mod_non_missing_samples, ppt, PROBABILITY_JUSTIFIED, PROBABILITY_NEVER, PROBABILITY_UNJUSTIFIED

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ZeroTrack(boolean swap)
protected	ZeroTrack(PptSlice ppt, boolean swap)

Method Summary

Modifier and Type	Method	Description
boolean	enabled()	Returns whether or not this invariant is enabled.
boolean	eq_check(double x, double y)	Returns true if x and y don't invalidate the invariant.
String	get_format_str(OutputFormat format)	Return a format string for the specified output format.
NISuppressionSet	get_ni_suppressions()	Returns a list of non-instantiating suppressions for this invariant.
static NumericFloat.ZeroTrack	get_proto(boolean swap)	Returns the prototype invariant.
protected NumericFloat.ZeroTrack	instantiate_dyn(PptSlice slice)	Instantiates (creates) an invariant of the same class on the specified slice.

Methods inherited from class NumericFloat

check_modified, format_using, get_proto_all, instantiate_ok, is_subscript, isExact, isObviousDynamically, obvious_checks, repr

Methods inherited from class TwoFloat

add, add_modified, add_unmodified, check, check_unmodified, computeConfidence, get_swap, isSameFormula, resurrect_done, resurrect_done_swapped, resurrect_done_unswapped, valid_types, var1, var1, var2, var2

Methods inherited from class BinaryInvariant

add_unordered, check_unordered, find, is_symmetric

Methods inherited from class Invariant

add_sample, asInvClass, checkRep, clear_falsified, clone, clone_and_permute, conf_is_ge, confidence_and, confidence_and, confidence_or, createGuardedInvariant, createGuardingPredicate, enoughSamples, falsify, find, format, format_classname, format_too_few_samples, format_unimplemented, formatFuzzy, get_comparability, getConfidence, getGuardingList, getGuardingList, hasUninterestingConstant, instantiate, is_false, is_ni_suppressed, isActive, isAllPrestate, isEqualityComparison, isExclusiveFormula, isObvious, isObviousDynamically, isObviousDynamically_SomeInEquality, isObviousDynamically_SomeInEqualityHelper, isObviousStatically, isObviousStatically, isObviousStatically_AllInEquality, isObviousStatically_SomeInEquality, isObviousStatically_SomeInEqualityHelper, 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 zero-track invariants should be considered.

Constructor Detail

ZeroTrack

protected ZeroTrack(PptSlice ppt,
                    boolean swap)

ZeroTrack

protected ZeroTrack(boolean swap)

Method Detail

get_proto

public static NumericFloat.ZeroTrack get_proto(boolean swap)

Returns the prototype invariant.

enabled

public boolean enabled()

Returns whether or not this invariant is enabled.

Specified by:

enabled in class Invariant

instantiate_dyn

protected NumericFloat.ZeroTrack instantiate_dyn( NumericFloat.ZeroTrack this,
                                                 PptSlice slice)

Description copied from class: Invariant

Instantiates (creates) an invariant of the same class on the specified slice. Must be overridden in each class. Must be used rather than Invariant.clone() so that checks in Invariant.instantiate(daikon.PptSlice) for reasonable invariants are done.

The implementation of this method is almost always return new <em>InvName</em>(slice);

Specified by:

instantiate_dyn in class Invariant

Returns:

the new invariant

get_format_str

public String get_format_str(@GuardSatisfied NumericFloat.ZeroTrack this,
                             OutputFormat format)

Description copied from class: NumericFloat

Return a format string for the specified output format. Each instance of %varN% will be replaced by the correct name for varN.

Specified by:

get_format_str in class NumericFloat

eq_check

public boolean eq_check(double x,
                        double y)

Description copied from class: NumericFloat

Returns true if x and y don't invalidate the invariant.

Specified by:

eq_check in class NumericFloat

get_ni_suppressions

@Pure
public NISuppressionSet get_ni_suppressions()

Returns a list of non-instantiating suppressions for this invariant.

Overrides:

get_ni_suppressions in class Invariant

Returns:

the set of non-instantiating suppressions for this invariant