CODEWITHSUNDEEP
scalagenerics
Arthur Attout
Arthur Attout

Reputation: 2916

Enumeration subtype element as parameter in Scala

I have a generic class for which the type must be a subtype of Enumeration

class MyClass[A<: Enumeration](val parameter1 : Int,
                               val parameter2: A) {

}

Inside this class, there is a method that needs to take an element from the enum A as parameter. I cannot find the proper way to write the signature of the method. 

def myMethod(element: A.Values): Resource2[A] = {

    this
}

Intellisense says

Cannot resolve symbol A

How can I write the method so it takes an element of the enum A ?

Upvotes: 0

Views: 175

Answers (1)

jwvh
jwvh

Reputation: 51271

The type is Value (not Values) and, because A is a type and not an instance (i.e. not a value), the syntax for referencing a type within a type is element: A#Value.

Upvotes: 2

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