NonEmptyList

cats.data.NonEmptyList

See theNonEmptyList companion class

object NonEmptyList

Attributes

Companion: class
Source: NonEmptyList.scala
Graph
Supertypes: trait Product

trait Mirror

class Object

trait Matchable

class Any
Self type: NonEmptyList.type

Members list

Type members

Classlikes

Attributes

Companion: object
Source: NonEmptyList.scala
Supertypes: class AnyVal

trait Matchable

class Any

Attributes

Companion: class
Source: NonEmptyList.scala
Supertypes: class Object

trait Matchable

class Any
Self type: ZipNonEmptyList.type

Inherited types

The names of the product elements

Attributes

Inherited from:: Mirror
Source: Mirror.scala

The name of the type

Attributes

Inherited from:: Mirror
Source: Mirror.scala

Value members

Concrete methods

Attributes

Source: NonEmptyList.scala

Create a NonEmptyList from a List.

The result will be None if the input list is empty and Some wrapping a NonEmptyList otherwise.

Attributes

See also: fromListUnsafe for an unsafe version that throws an exception if the input list is empty.
Source: NonEmptyList.scala

Create a NonEmptyList from a List, or throw an IllegalArgumentException if the input list is empty.

Attributes

See also: fromList for a safe version that returns None if the input list is empty.
Source: NonEmptyList.scala

Attributes

Source: NonEmptyList.scala

Attributes

Source: NonEmptyList.scala

Attributes

Source: NonEmptyList.scala

Attributes

Source: NonEmptyList.scala

Deprecated and Inherited methods

Attributes

Deprecated: true
Inherited from:: NonEmptyListInstances (hidden)
Source: NonEmptyList.scala

Implicits

Inherited implicits

Attributes

Inherited from:: NonEmptyListInstances1 (hidden)
Source: NonEmptyList.scala

This is not a bug.

This is not a bug. The declared type of catsDataInstancesForNonEmptyList intentionally ignores NonEmptyReducible trait for it not being a typeclass.

Also see the discussion: PR #3541 and issue #3069.