52 lines
830 B
Go
52 lines
830 B
Go
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package main
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import (
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"fmt"
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"iter"
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"strconv"
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"time"
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)
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func main() {
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set := New[string]()
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for i := 10; i < 100; i++ {
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set.Add(strconv.Itoa(i))
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}
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PrintAllElements[string](set)
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}
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// Set holds a set of elements.
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type Set[E comparable] struct {
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m map[E]struct{}
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}
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// New returns a new [Set].
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func New[E comparable]() *Set[E] {
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return &Set[E]{m: make(map[E]struct{})}
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}
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// All is an iterator over the elements of s.
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func (s *Set[E]) All() iter.Seq[E] {
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return func(yield func(E) bool) {
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for v := range s.m {
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tmp := make([]byte, 1024)
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str := string(tmp)
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if !yield(v) {
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return
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}
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go func() { println(str) }()
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}
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}
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}
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func (s *Set[E]) Add(v E) {
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s.m[v] = struct{}{}
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}
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func PrintAllElements[E comparable](s *Set[E]) {
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for v := range s.All() {
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time.Sleep(100 * time.Second)
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fmt.Println(v)
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}
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}
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