org.jetbrains.jet.lang.resolve.calls.autocasts

Enum Nullability

java.lang.Object

java.lang.Enum<Nullability>

org.jetbrains.jet.lang.resolve.calls.autocasts.Nullability

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Nullability>

public enum Nullability
extends java.lang.Enum<Nullability>

Enum Constant Summary

Enum Constants

Enum Constant and Description
IMPOSSIBLE
NOT_NULL
NULL
UNKNOWN

Method Summary

Methods

Modifier and Type	Method and Description
Nullability	and(Nullability other)
boolean	canBeNonNull()
boolean	canBeNull()
static Nullability	fromFlags(boolean canBeNull, boolean canBeNonNull)
Nullability	invert()
Nullability	or(Nullability other)
Nullability	refine(Nullability other)
static Nullability	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static Nullability[]	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

Enum Constant Detail

NULL

public static final Nullability NULL

NOT_NULL

public static final Nullability NOT_NULL

UNKNOWN

public static final Nullability UNKNOWN

IMPOSSIBLE

public static final Nullability IMPOSSIBLE

Method Detail

values

public static Nullability[] 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 (Nullability c : Nullability.values())
    System.out.println(c);

Returns:

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

valueOf

public static Nullability 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

fromFlags

@NotNull
public static Nullability fromFlags(boolean canBeNull,
                            boolean canBeNonNull)

canBeNull

public boolean canBeNull()

canBeNonNull

public boolean canBeNonNull()

refine

@NotNull
public Nullability refine(@NotNull
                         Nullability other)

invert

@NotNull
public Nullability invert()

and

@NotNull
public Nullability and(@NotNull
                      Nullability other)

or

@NotNull
public Nullability or(@NotNull
                     Nullability other)