fn simple_lock() {
	a := 100
	b := 100

	lock  {
	}

	lock       {         }

	lock    a     {

	}

	lock    a  , b    {

	}
}

fn lock_with_statements() {
	shared a := []int{}
	lock  {
		a << 1
		a << 2
	}

	lock   a   {
		a << 1
		a << 2
	}
}

fn simple_rlock() {
	a := 100

	rlock  {
	}

	rlock    a     {

	}
}

fn rlock_with_statements() {
	shared a := [1]
	rlock  {
		println(a[0])
	}

	rlock  a     {
		println(a[0])
	}
}