Package gw.lang.parser.expressions
Enum Variance
- java.lang.Object
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- java.lang.Enum<Variance>
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- gw.lang.parser.expressions.Variance
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- All Implemented Interfaces:
Serializable
,Comparable<Variance>
public enum Variance extends Enum<Variance>
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Nested Class Summary
Nested Classes Modifier and Type Class Description static interface
Variance.IVarianceVerifier
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Enum Constant Summary
Enum Constants Enum Constant Description CONTRAVARIANT
COVARIANT
DEFAULT
INVARIANT
PENDING
internal use: variance inferenceWILD_CONTRAVARIANT
internal use: Java interopWILD_COVARIANT
internal use: Java interop
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods 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)
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Enum Constant Detail
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COVARIANT
public static final Variance COVARIANT
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CONTRAVARIANT
public static final Variance CONTRAVARIANT
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INVARIANT
public static final Variance INVARIANT
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DEFAULT
public static final Variance DEFAULT
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PENDING
public static final Variance PENDING
internal use: variance inference
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WILD_COVARIANT
public static final Variance WILD_COVARIANT
internal use: Java interop
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WILD_CONTRAVARIANT
public static final Variance WILD_CONTRAVARIANT
internal use: Java interop
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Method Detail
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values
public static Variance[] 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 (Variance c : Variance.values()) System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in the order they are declared
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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 nameNullPointerException
- if the argument is null
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getDesc
public String getDesc()
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getSymbol
public char getSymbol()
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verifyTypeVarVariance
public static void verifyTypeVarVariance(Variance variance, IType enclosingType, Variance.IVarianceVerifier verifier, IType type)
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maybeInferVariance
public static Variance maybeInferVariance(IType type, IGenericTypeVariable gtv)
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