TypeConstraint
scala.annotation.TypeConstraint
trait TypeConstraint extends Annotation
A marker for annotations that, when applied to a type, should be treated as a constraint on the annotated type.
A proper constraint should restrict the type based only on information mentioned within the type. A Scala compiler can use this assumption to rewrite the contents of the constraint as necessary. To contrast, a type annotation whose meaning depends on the context where it is written down is not a proper constrained type, and this marker should not be applied. A Scala compiler will drop such annotations in cases where it would rewrite a type constraint.
Attributes
- Source
- TypeConstraint.scala
- Graph
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- Supertypes
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