sets

README

sets

Sets and Set operations in golang (ie map[T]struct{} but with helper functions/nicer names, hiding the struct{}{} etc...)

Documentation

Overview

Sets and Set type and operations in go 1.18+ generics. (pending built in support in golang core)

Index

• func RemoveCommon[T comparable](a, b Set[T])
• type Set
  • func FromSlice[T comparable](items []T) Set[T]
  • func New[T comparable](item ...T) Set[T]
  • func (s Set[T]) Add(item ...T)
  • func (s Set[T]) Clone() Set[T]
  • func (s Set[T]) Has(item T) bool
  • func (s Set[T]) Remove(item ...T)
  • func (s Set[T]) String() string

Functions

func RemoveCommon

func RemoveCommon[T comparable](a, b Set[T])

RemoveCommon removes elements from both sets that are in both, leaving only the delta. Useful for Notifier on Set so that oldValue has what has been removed and newValue has what has been added.

Types

type Set

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

func FromSlice

func FromSlice[T comparable](items []T) Set[T]

SetFromSlice constructs a Set from a slice.

func New

func New[T comparable](item ...T) Set[T]

func (Set[T]) Add

func (s Set[T]) Add(item ...T)

func (Set[T]) Clone

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

func (Set[T]) Has

func (s Set[T]) Has(item T) bool

func (Set[T]) Remove

func (s Set[T]) Remove(item ...T)

func (Set[T]) String

func (s Set[T]) String() string