package shell

import "sync"

type MonoShell struct {
	sync.Map
}

var monoShell = &MonoShell{}

func Mono(name string) *Shell {
	v, ok := monoShell.Load(name)
	if ok {
		return v.(*Shell)
	}

	shell := Base()
	monoShell.Store(name, shell)
	return shell
}