maputil

package

v1.10.2 Latest Latest Go to latest Published: Oct 1, 2026 License: MIT Imports: 6 Imported by: 0

Details

Package maputil provides utilities for working with maps.

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func SortedKeys[M ~map[K]V, K cmp.Ordered, V any](m M) iter.Seq[K]

SortedKeys returns an iterator over the keys of m in ascending order. The ~map[K]V constraint also accepts defined map types such as Set.

type Set[T comparable] map[T]struct{}

Set is a generic set type that serializes to/from JSON arrays.

func NewSet[T comparable](values ...T) Set[T]

NewSet creates a Set from values.

func (s Set[T]) Add(value T)

Add adds a value to the set.

func (s Set[T]) Contains(value T) bool

Contains returns true if the value is in the set.

func (s Set[T]) Len() int

Len returns the number of elements in the set.

func (s Set[T]) MarshalJSON() ([]byte, error)

MarshalJSON implements json.Marshaler.

func (s Set[T]) Remove(value T)

Remove removes a value from the set.

func (s *Set[T]) UnmarshalJSON(data []byte) error

UnmarshalJSON implements json.Unmarshaler.

func (s Set[T]) Values() []T

Values returns all values as a slice.