Package daikon.inv.binary.twoSequence

Class ReverseFloat

Object

Invariant

BinaryInvariant

TwoSequenceFloat

ReverseFloat

All Implemented Interfaces:

Serializable, Cloneable

public class ReverseFloat
extends TwoSequenceFloat

Represents two sequences of double where one is in the reverse order of the other. Prints as x[] is the reverse of y[].

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class Invariant

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

Field Summary

Fields

Modifier and Type	Field	Description
static Logger	debug
static boolean	dkconfig_enabled	Boolean.

Fields inherited from class TwoSequenceFloat

swap

Fields inherited from class Invariant

checkedMergeOverridden, CONFIDENCE_JUSTIFIED, CONFIDENCE_NEVER, CONFIDENCE_UNJUSTIFIED, 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	ReverseFloat()
protected	ReverseFloat(PptSlice ppt)

Method Summary

Modifier and Type	Method	Description
InvariantStatus	add_modified(double @Interned [] a1, double @Interned [] a2, int count)	Default implementation simply calls check.
InvariantStatus	check_modified(double @Interned [] a1, double @Interned [] a2, int count)	Presents a sample to the invariant.
protected double	computeConfidence()	This method computes the confidence that this invariant occurred by chance.
boolean	enabled()	Returns whether or not this class of invariants is currently enabled.
String	format_csharp()
String	format_daikon()
String	format_java_family(OutputFormat format)
String	format_simplify()
String	format_using(OutputFormat format)	Return a printed representation of this invariant, in the given format.
static ReverseFloat	get_proto()	Returns the prototype invariant for ReverseFloat.
ReverseFloat	instantiate_dyn(PptSlice slice)	Instantiates (creates) an invariant of the same class on the specified slice.
boolean	instantiate_ok(VarInfo[] vis)	Reverse only makes sense on ordered arrays.
boolean	isSameFormula(Invariant other)	Return true if both invariants are the same class and the order of the variables (swap) is the same.
String	repr()	Returns a representation of the class.
protected Invariant	resurrect_done_swapped()	Swaps the variables by inverting the state of swap.

Methods inherited from class TwoSequenceFloat

add, add_unmodified, check, check_unmodified, get_swap, resurrect_done, 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, get_ni_suppressions, getConfidence, getGuardingList, getGuardingList, hasUninterestingConstant, instantiate, is_false, is_ni_suppressed, isActive, isAllPrestate, isEqualityComparison, isExact, isExclusiveFormula, isObvious, isObviousDynamically, 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

debug

public static final Logger debug

dkconfig_enabled

public static boolean dkconfig_enabled

Boolean. True iff Reverse invariants should be considered.

Constructor Detail

ReverseFloat

protected ReverseFloat(PptSlice ppt)

ReverseFloat

protected ReverseFloat()

Method Detail

get_proto

public static ReverseFloat get_proto()

Returns the prototype invariant for ReverseFloat.

enabled

public boolean enabled()

Description copied from class: Invariant

Returns whether or not this class of invariants is currently enabled.

Its implementation is almost always return dkconfig_enabled;.

Specified by:

enabled in class Invariant

instantiate_ok

public boolean instantiate_ok(VarInfo[] vis)

Reverse only makes sense on ordered arrays.

Overrides:

instantiate_ok in class Invariant

See Also:

Invariant.valid_types(VarInfo[])

instantiate_dyn

public ReverseFloat instantiate_dyn( ReverseFloat 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

resurrect_done_swapped

protected Invariant resurrect_done_swapped()

Description copied from class: TwoSequenceFloat

Swaps the variables by inverting the state of swap.

Overrides:

resurrect_done_swapped in class TwoSequenceFloat

repr

public String repr(@GuardSatisfied ReverseFloat this)

Description copied from class: TwoSequenceFloat

Returns a representation of the class. This includes the classname, variables, and swap state.

Overrides:

repr in class TwoSequenceFloat

Returns:

a string representation of this

format_using

@SideEffectFree
public String format_using(@GuardSatisfied ReverseFloat this,
                           OutputFormat format)

Description copied from class: Invariant

Return a printed representation of this invariant, in the given format.

Specified by:

format_using in class Invariant

format_daikon

public String format_daikon(@GuardSatisfied ReverseFloat this)

format_java_family

public String format_java_family(@GuardSatisfied ReverseFloat this,
                                 OutputFormat format)

format_csharp

public String format_csharp(@GuardSatisfied ReverseFloat this)

format_simplify

public String format_simplify(@GuardSatisfied ReverseFloat this)

check_modified

public InvariantStatus check_modified(double @Interned [] a1,
                                      double @Interned [] a2,
                                      int count)

Description copied from class: TwoSequenceFloat

Presents a sample to the invariant. Returns whether the sample is consistent with the invariant. Does not change the state of the invariant.

Specified by:

check_modified in class TwoSequenceFloat

count - how many identical samples were observed in a row. For example, three calls to check_modified with a count parameter of 1 is equivalent to one call to check_modified with a count parameter of 3.

Returns:

whether or not the sample is consistent with the invariant

add_modified

public InvariantStatus add_modified(double @Interned [] a1,
                                    double @Interned [] a2,
                                    int count)

Description copied from class: TwoSequenceFloat

Default implementation simply calls check. Subclasses can override.

Overrides:

add_modified in class TwoSequenceFloat

computeConfidence

protected double computeConfidence()

Description copied from class: Invariant

This method computes the confidence that this invariant occurred by chance. Clients should call Invariant.getConfidence() instead.

This method need not check the value of field "falsified", as the caller does that.

Overrides:

computeConfidence in class TwoSequenceFloat

Returns:

confidence of this invariant

See Also:

Invariant.getConfidence()

isSameFormula

@Pure
public boolean isSameFormula(Invariant other)

Description copied from class: TwoSequenceFloat

Return true if both invariants are the same class and the order of the variables (swap) is the same.

Overrides:

isSameFormula in class TwoSequenceFloat

Parameters:

other - the invariant to compare to this one

Returns:

true iff the two invariants represent the same mathematical formula. Does not consider