Interface definition

Syntax

Interfaces may nest inside classes; outside of classes, interfaces are only allowed in package blocks and top-level region. When inside a class block, contributes a static property.

The interface block must only contain function definitions, which may only contain certain annotations: meta-data and the generic and meta attributes.

InterfaceDefinition :
interface IdentifierName TypeParameters_opt ExtendsList Block

Interface inheritance

Syntax

ExtendsList :
«empty»
extends TypeExpressionList