scala.Selectable
See theSelectable companion object
trait Selectable
A marker trait for objects that support structural selection via selectDynamic
and applyDynamic
Implementation classes should define, or make available as extension methods, the following two method signatures:
def selectDynamic(name: String): Any
def applyDynamic(name: String)(args: Any*): Any =
selectDynamic
is invoked for simple selections v.m
, whereas applyDynamic
is invoked for selections with arguments v.m(...)
. If there's only one kind of selection, the method supporting the other may be omitted. The applyDynamic
can also have a second parameter list of java.lang.Class
arguments, i.e. it may alternatively have the signature
def applyDynamic(name: String, paramClasses: Class[_]*)(args: Any*): Any
In this case the call will synthesize Class
arguments for the erasure of all formal parameter types of the method in the structural type.
Attributes
- Companion
- object
- Source
- Selectable.scala
- Graph
-
- Supertypes
-
class Any
- Known subtypes
-
trait Selectable
In this article