Derive

Derive[F, Typeclass] represents a universally quantified function from Typeclass[A] to Typeclass[F[A]] for some F[_]. You can think of Derive as a "recipe" for building a Typeclass[F[A]] instance given a Typeclass[A].

For example, if we know how to compare values of type A for equality then we can compare lists with elements of type A for equality by checking that the length of the lists is the same and each pair of corresponding elements are equal. And we can do this for any type A as long as it has an Equal instance.

This is used by the library to derive typeclass instances for higher kinded types given typeclass instances for the type they are parameterized on.

Linear Supertypes

AnyRef, Any

Known Subclasses

AssociativeBothDeriveEqualInvariant, AssociativeEitherDeriveEqualInvariant, AssociativeFlattenCovariantDeriveEqual, CommutativeBothDeriveEqualInvariant, CommutativeEitherDeriveEqualInvariant, ContravariantDeriveEqual, CovariantDeriveEqual, CovariantDeriveEqualIdentityFlatten, DeriveEqualForEach, DeriveEqualIdentityBothInvariant, DeriveEqualIdentityEitherInvariant, DeriveEqualNonEmptyForEach

Abstract Value Members

abstract def derive[A](implicit arg0: Typeclass[A]): Typeclass[F[A]]

Concrete Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Docs: object Derive | package prelude

trait Derive[F[_], Typeclass[_]] extends AnyRef

Abstract Value Members

abstract def derive[A](implicit arg0: Typeclass[A]): Typeclass[F[A]]

Concrete Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from AnyRef

Inherited from Any

Ungrouped