CorGenericParamAttr Enumeration
Contains values that describe the Type parameters for generic types, as used in calls to IMetaDataEmit2::DefineGenericParam.
typedef enum CorGenericParamAttr {
gpVarianceMask = 0x0003,
gpNonVariant = 0x0000,
gpCovariant = 0x0001,
gpContravariant = 0x0002,
gpSpecialConstraintMask = 0x001C,
gpNoSpecialConstraint = 0x0000,
gpReferenceTypeConstraint = 0x0004,
gpNotNullableValueTypeConstraint = 0x0008,
gpDefaultConstructorConstraint = 0x0010
} CorGenericParamAttr;
Members
Member |
Description |
|---|---|
gpVarianceMask |
Parameter variance applies only to generic parameters for interfaces and delegates. |
gpNonVariant |
Indicates the absence of variance. |
gpCovariant |
Indicates covariance. |
gpContravariant |
Indicates contravariance. |
gpSpecialConstraintMask |
Special constraints can apply to any Type parameter. |
gpNoSpecialConstraint |
Indicates that no constraint applies to the Type parameter. |
gpReferenceTypeConstraint |
Indicates that the Type parameter must be a reference type. |
gpNotNullableValueTypeConstraint |
Indicates that the Type parameter must be a value type that cannot be a null value. |
gpDefaultConstructorConstraint |
Indicates that the Type parameter must have a default public constructor that takes no parameters. |
Requirements
Platforms: See .NET Framework System Requirements.
Header: CorHdr.h
.NET Framework Versions: 4, 3.5 SP1, 3.5, 3.0 SP1, 3.0, 2.0 SP1, 2.0