Package it.unive.lisa.analysis

Enum SemanticDomain.Satisfiability

java.lang.Object

java.lang.Enum<SemanticDomain.Satisfiability>

it.unive.lisa.analysis.SemanticDomain.Satisfiability

All Implemented Interfaces:

Lattice<SemanticDomain.Satisfiability>, java.io.Serializable, java.lang.Comparable<SemanticDomain.Satisfiability>

Enclosing interface:

SemanticDomain<D extends SemanticDomain<D,E,I>,E extends SymbolicExpression,I extends Identifier>

public static enum SemanticDomain.Satisfiability
extends java.lang.Enum<SemanticDomain.Satisfiability>
implements Lattice<SemanticDomain.Satisfiability>

The satisfiability of an expression.

Enum Constant Summary

Enum Constants

Enum Constant	Description
BOTTOM	Represent the fact that the satisfiability evaluation resulted in an error.
NOT_SATISFIED	Represent the fact that an expression is not satisfied.
SATISFIED	Represent the fact that an expression is satisfied.
UNKNOWN	Represent the fact that it is not possible to determine whether or not an expression is satisfied.

Field Summary

Fields inherited from interface it.unive.lisa.analysis.Lattice

BOTTOM_REPR, BOTTOM_STRING, TOP_REPR, TOP_STRING

Method Summary

Modifier and Type	Method	Description
abstract SemanticDomain.Satisfiability	and(SemanticDomain.Satisfiability other)	Performs a logical and between this satisfiability and the given one.
SemanticDomain.Satisfiability	bottom()	Yields the bottom element of this lattice.
static SemanticDomain.Satisfiability	fromBoolean(boolean bool)	Transforms a boolean value to a SemanticDomain.Satisfiability instance.
abstract SemanticDomain.Satisfiability	glb(SemanticDomain.Satisfiability other)	Performs the greatest lower bound operation between this satisfiability and the given one.
abstract SemanticDomain.Satisfiability	negate()	Negates the current satisfiability, getting the opposite result.
abstract SemanticDomain.Satisfiability	or(SemanticDomain.Satisfiability other)	Performs a logical or between this satisfiability and the given one.
SemanticDomain.Satisfiability	top()	Yields the top element of this lattice.
static SemanticDomain.Satisfiability	valueOf(java.lang.String name)	Returns the enum constant of this type with the specified name.
static SemanticDomain.Satisfiability[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unive.lisa.analysis.Lattice

isBottom, isTop, lessOrEqual, lub, widening

Enum Constant Detail

SATISFIED

public static final SemanticDomain.Satisfiability SATISFIED

Represent the fact that an expression is satisfied.

NOT_SATISFIED

public static final SemanticDomain.Satisfiability NOT_SATISFIED

Represent the fact that an expression is not satisfied.

UNKNOWN

public static final SemanticDomain.Satisfiability UNKNOWN

Represent the fact that it is not possible to determine whether or not an expression is satisfied.

BOTTOM

public static final SemanticDomain.Satisfiability BOTTOM

Represent the fact that the satisfiability evaluation resulted in an error.

Method Detail

values

public static SemanticDomain.Satisfiability[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (SemanticDomain.Satisfiability c : SemanticDomain.Satisfiability.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static SemanticDomain.Satisfiability valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

negate

public abstract SemanticDomain.Satisfiability negate()

Negates the current satisfiability, getting the opposite result.

Returns:

the negation of this satisfiability instance

and

public abstract SemanticDomain.Satisfiability and(SemanticDomain.Satisfiability other)

Performs a logical and between this satisfiability and the given one.

Parameters:

other - the other satisfiability

Returns:

the logical and between the two satisfiability instances

or

public abstract SemanticDomain.Satisfiability or(SemanticDomain.Satisfiability other)

Performs a logical or between this satisfiability and the given one.

Parameters:

other - the other satisfiability

Returns:

the logical or between the two satisfiability instances

glb

public abstract SemanticDomain.Satisfiability glb(SemanticDomain.Satisfiability other)

Performs the greatest lower bound operation between this satisfiability and the given one.

Parameters:

other - the other satisfiability

Returns:

the result of the greatest lower bound

fromBoolean

public static SemanticDomain.Satisfiability fromBoolean(boolean bool)

Transforms a boolean value to a SemanticDomain.Satisfiability instance.

Parameters:

bool - the boolean to transform

Returns:

SATISFIED if bool is true, NOT_SATISFIED otherwise

top

public SemanticDomain.Satisfiability top()

Description copied from interface: Lattice

Yields the top element of this lattice. The returned element should be unique across different calls to this method, since Lattice.isTop() uses reference equality by default. If the value returned by this method is not a singleton, override Lattice.isTop() accordingly to provide a coherent test.

Specified by:

top in interface Lattice<SemanticDomain.Satisfiability>

Returns:

the top element

bottom

public SemanticDomain.Satisfiability bottom()

Description copied from interface: Lattice

Yields the bottom element of this lattice. The returned element should be unique across different calls to this method, since Lattice.isBottom() uses reference equality by default. If the value returned by this method is not a singleton, override Lattice.isBottom() accordingly to provide a coherent test.

Specified by:

bottom in interface Lattice<SemanticDomain.Satisfiability>

Returns:

the bottom element