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optional

package module

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Versions in this module

v1

v1.0.0

Jun 26, 2024

Changes in this version

+ var ErrNilFunction = errors.New("nil function")

type Optional

+ func (opt *Optional[T]) Clone() *Optional[T]

+ func (opt *Optional[T]) Or(supplier func() *Optional[T]) *Optional[T]

v0

v0.1.0

Apr 23, 2024

Changes in this version

+ var ErrNoSuchValue = errors.New("no such value")

+ type Optional struct

+ func Empty[T comparable]() *Optional[T]

+ func New[T comparable](v *T) *Optional[T]

+ func Of[T comparable](v T) *Optional[T]

+ func (opt *Optional[T]) Equals(other any) bool

+ func (opt *Optional[T]) Filter(predicate func(v T) bool) *Optional[T]

+ func (opt *Optional[T]) Get() (T, error)

+ func (opt *Optional[T]) GetPanic() T

+ func (opt *Optional[T]) IfPresent(action func(v T))

+ func (opt *Optional[T]) IfPresentOrElse(action func(v T), emptyAction func())

+ func (opt *Optional[T]) IsEmpty() bool

+ func (opt *Optional[T]) IsPresent() bool

+ func (opt *Optional[T]) MarshalJSON() ([]byte, error)

+ func (opt *Optional[T]) OrElse(other T) T

+ func (opt *Optional[T]) OrElseGet(supplier func() T) T

+ func (opt *Optional[T]) String() string

+ func (opt *Optional[T]) UnmarshalJSON(b []byte) error