26 lines
		
	
	
		
			346 B
		
	
	
	
		
			V
		
	
	
			
		
		
	
	
			26 lines
		
	
	
		
			346 B
		
	
	
	
		
			V
		
	
	
const n = 1000
 | 
						|
 | 
						|
fn f(ch chan f64) {
 | 
						|
	mut s := 0.
 | 
						|
	for _ in 0 .. n {
 | 
						|
		s += <-ch
 | 
						|
	}
 | 
						|
	assert s == f64(n * (n + 1) / 2)
 | 
						|
	ch.close()
 | 
						|
}
 | 
						|
 | 
						|
fn do_send(ch chan f64, val f64) ?f64 {
 | 
						|
	ch <- val ?
 | 
						|
	return val + 1.0
 | 
						|
}
 | 
						|
 | 
						|
fn test_push_propargate() {
 | 
						|
	ch := chan f64{}
 | 
						|
	go f(ch)
 | 
						|
	mut s := 1.0
 | 
						|
	for {
 | 
						|
		s = do_send(ch, s) or { break }
 | 
						|
	}
 | 
						|
	assert s == f64(n + 1)
 | 
						|
}
 |