yeagi waitgroups

main.go

package main

import (
	"github.com/traefik/yaegi/interp"
	"github.com/traefik/yaegi/stdlib"
)

const code = `
package main

import (
    "fmt"
    "sync"
    "time"
)

func worker(id int) {
    fmt.Printf("Worker %d starting\n", id)

    time.Sleep(time.Second)
    fmt.Printf("Worker %d done\n", id)
}

func main() {

    var wg sync.WaitGroup

    for i := 1; i <= 5; i++ {
        wg.Add(1)

        i := i

        go func() {
            defer wg.Done()
            worker(i)
        }()
    }

    wg.Wait()

}
`

func main() {
	i := interp.New(interp.Options{})

	i.Use(stdlib.Symbols)

	_, err := i.Eval(code)
	if err != nil {
		panic(err)
	}

	_, err = i.Eval(`fmt.Println("Hello Yaegi")`)
	if err != nil {
		panic(err)
	}
}