Package gw.lang.parser.expressions

Enum Variance

java.lang.Object

java.lang.Enum<Variance>

gw.lang.parser.expressions.Variance

All Implemented Interfaces:

Serializable, Comparable<Variance>, java.lang.constant.Constable

public enum Variance
extends Enum<Variance>

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Variance.IVarianceVerifier

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
CONTRAVARIANT
COVARIANT
DEFAULT
INVARIANT
PENDING	internal use: variance inference
WILD_CONTRAVARIANT	internal use: Java interop
WILD_COVARIANT	internal use: Java interop

Method Summary

Modifier and Type	Method	Description
String	getDesc()
char	getSymbol()
static Variance	maybeInferVariance(IType type, IGenericTypeVariable gtv)
static Variance	valueOf(String name)	Returns the enum constant of this type with the specified name.
static Variance[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.
static void	verifyDefaultTypeVarVariance(IType enclosingType, Variance ctxVariance, IType... types)
static void	verifyTypeVarVariance(Variance variance, IType enclosingType, Variance.IVarianceVerifier verifier, IType type)

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

COVARIANT

public static final Variance COVARIANT

CONTRAVARIANT

public static final Variance CONTRAVARIANT

INVARIANT

public static final Variance INVARIANT

DEFAULT

public static final Variance DEFAULT

PENDING

public static final Variance PENDING

internal use: variance inference

WILD_COVARIANT

public static final Variance WILD_COVARIANT

internal use: Java interop

WILD_CONTRAVARIANT

public static final Variance WILD_CONTRAVARIANT

internal use: Java interop

Method Details

values

public static Variance[] values()

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

Returns:

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

valueOf

public static Variance valueOf(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:

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

NullPointerException - if the argument is null

getDesc

public String getDesc()

getSymbol

public char getSymbol()

verifyTypeVarVariance

public static void verifyTypeVarVariance(Variance variance,
 IType enclosingType,
 Variance.IVarianceVerifier verifier,
 IType type)

maybeInferVariance

public static Variance maybeInferVariance(IType type,
 IGenericTypeVariable gtv)

verifyDefaultTypeVarVariance

public static void verifyDefaultTypeVarVariance(IType enclosingType,
 Variance ctxVariance,
 IType... types)