nullable

Documentation

Index

• type Null
  • func None[T any]() Null[T]
  • func Some[T any](value T) Null[T]
  • func (n Null[T]) IsNull() bool
  • func (n Null[T]) Unwrap() T

Types

type Null

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

Null is a generic type that represents a nullable value. There are 2 possible states:

• Null: > value: zero value of T > valid: false

• Not Null: > value: value of T > valid: true

func None

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

Constructors None returns a Null[T] with valid set to false.

func Some

func Some[T any](value T) Null[T]

Some returns a Null[T] with valid set to true.

func (Null[T]) IsNull

func (n Null[T]) IsNull() bool

Methods - Inspection IsNull returns true if the Null is in a Null state.

func (Null[T]) Unwrap

func (n Null[T]) Unwrap() T

- Fetching Unwrap returns the inner value of a Not Null. If the Null is in a Null state, Unwrap panics.