Packages

trait Annotations[A, T] extends DepFn0 with Serializable

Provides the annotations of type A of the fields or constructors of case class-like or sum type T.

If type T is case class-like, this type class inspects its fields and provides their annotations of type A. If type T is a sum type, its constructor types are looked for annotations.

Type Out is an HList having the same number of elements as T (number of fields of T if T is case class-like, or number of constructors of T if it is a sum type). It is made of None.type (no annotation on corresponding field or constructor) and Some[A] (corresponding field or constructor is annotated).

Method apply provides an HList of type Out made of None (corresponding field or constructor not annotated) or Some(annotation) (corresponding field or constructor has annotation annotation).

Note that annotation types must be case class-like for this type class to take them into account.

Example:

case class First(s: String)

case class CC(i: Int, @First("a") s: String)

sealed trait Base
@First("b") case class BaseI(i: Int) extends Base
case class BaseS(s: String) extends Base


val ccFirsts = Annotations[First, CC]
val baseFirsts = Annotations[First, Base]

// ccFirsts.Out is  None.type :: Some[First] :: HNil
// ccFirsts.apply() is
//   None :: Some(First("a")) :: HNil

// baseFirsts.Out is  Some[First] :: None.type :: HNil
// baseFirsts.apply() is
//   Some(First("b")) :: None :: HNil
Linear Supertypes
Serializable, Serializable, DepFn0, AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. Annotations
  2. Serializable
  3. Serializable
  4. DepFn0
  5. AnyRef
  6. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Type Members

  1. abstract type Out <: HList
    Definition Classes
    Annotations → DepFn0

Abstract Value Members

  1. abstract def apply(): Out
    Definition Classes
    DepFn0

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  8. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  10. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  12. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  14. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  15. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  16. def toString(): String
    Definition Classes
    AnyRef → Any
  17. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  18. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  19. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )

Inherited from Serializable

Inherited from Serializable

Inherited from DepFn0

Inherited from AnyRef

Inherited from Any

Ungrouped