maybe

Documentation

Index

• func Just[T any](maybe Maybe[T]) T
• func JustValid[T any](m Maybe[T]) (t T, ok bool)
• func MapNone[T any](m Maybe[T], f func() T) T
• func ToPtr[T any](m Maybe[T]) *T
• func Valid[T any](maybe Maybe[T]) bool
• type Maybe
  • func FromPtr[T any](t *T) Maybe[T]
  • func Map[T, E any](m Maybe[T], f func(T) E) Maybe[E]
  • func MapZero[T comparable](t T) Maybe[T]
  • func NewJust[T any](v T) Maybe[T]
  • func NewNone[T any]() Maybe[T]
  • func (m Maybe[T]) MarshalJSON() ([]byte, error)
  • func (m *Maybe[T]) UnmarshalJSON(bytes []byte) error

Functions

func Just

func Just[T any](maybe Maybe[T]) T

func JustValid

func JustValid[T any](m Maybe[T]) (t T, ok bool)

func MapNone

func MapNone[T any](m Maybe[T], f func() T) T

func ToPtr

func ToPtr[T any](m Maybe[T]) *T

func Valid

func Valid[T any](maybe Maybe[T]) bool

Types

type Maybe

type Maybe[T any] struct {
	// contains filtered or unexported fields
}

func FromPtr

func FromPtr[T any](t *T) Maybe[T]

func Map

func Map[T, E any](m Maybe[T], f func(T) E) Maybe[E]

Map maybe to different type

func MapZero

func MapZero[T comparable](t T) Maybe[T]

func NewJust

func NewJust[T any](v T) Maybe[T]

func NewNone

func NewNone[T any]() Maybe[T]

NewNone used for explicit none value

func (Maybe[T]) MarshalJSON

func (m Maybe[T]) MarshalJSON() ([]byte, error)

func (*Maybe[T]) UnmarshalJSON

func (m *Maybe[T]) UnmarshalJSON(bytes []byte) error