option

package

v0.1.1 Latest Latest Go to latest Published: Mar 28, 2026 License: Apache-2.0 Imports: 0 Imported by: 0

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

func Cast[T any, U any](option Option[T]) Option[U]

func From[T *any](t T) Option[T]

func Map[T any, U any](option Option[T], fn func(T) U) Option[U]

This function applies the given function to the Option value and returns the result.

func None[T any]() Option[T]

func Ref[T any](o *Option[T]) Option[*T]

func Some[T any](t T) Option[T]

func (o Option[T]) AndThen(fn func(T) bool) bool

func (o Option[T]) IsNone() bool

Returns true if the Option does not contain a value, false otherwise.

Inverse of IsSome

func (o Option[T]) IsSome() bool

Returns true if the Option contains a value, false otherwise.

Inverse of IsNone

func (o Option[T]) Split() (T, bool)

func (o Option[T]) Then(fn func(T))

func (o Option[T]) ThenPtr(fn func(*T))

func (o Option[T]) Unwrap() T

This function returns a copy of the data and not a pointer to it. Panics if the Option is None.

Modifying the result will not modify the original data instead use UnwrapPtr or Map

func (o Option[T]) UnwrapOr(t T) T

func (o Option[T]) UnwrapOrElse(fn func() T) T

func (o Option[T]) UnwrapPtr() *T

This function returns a pointer to the data contained in the Option. Panics if the Option is None.