README.md

Set

An implementation of a generic Set data structure in Go with an Iter function to simulate Rust's iterators and has Go's version of iterator functions, leveraging the best of both worlds.

Example

package main

import (
    "fmt"
    "log"

    "github.com/Jamlie/set"
)

type Person struct {
	Id   int
	Name string
	Age  int
}

func main() {
	intsSet := set.New[int]()
	intsSet.Insert(1)
	intsSet.Insert(2)
	intsSet.Insert(3)
	intsSet.Delete(1)

	fmt.Println(intsSet.Len())
	fmt.Println(intsSet)
	if intsSet.Contains(2) {
		fmt.Println("Set contains number 2")
	}

	uniquePeople := set.New[Person]()
	uniquePeople.Insert(Person{Id: 21, Name: "John", Age: 30})
	uniquePeople.Insert(Person{Id: 22, Name: "Jane", Age: 31})
	uniquePeople.Insert(Person{Id: 23, Name: "Roland", Age: 32})

	newUnique := uniquePeople.Clone()

	if !newUnique.Empty() {
		newUnique.Clear()
	}

	uniquePeople = uniquePeople.
		Iter().
		Map(func(k Person) Person {
			return Person{
				Id:   k.Id * 3,
				Name: k.Name,
				Age:  k.Age,
			}
		}).
		Filter(func(k Person) bool {
			return k.Id%2 == 1
		}).
		Collect()

	for k := range uniquePeople.All() {
		log.Println(k)
	}

	fmt.Println(uniquePeople)

	newPeople := set.New[Person]()

	newPeople.Collect(uniquePeople.All())

	log.Println(newPeople)
}