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by mw42
3666 days ago
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> It'll be interesting to see if source/sink channel types ever get retrofitted to Go in a decade or so. Channels can be designated as receive-only or send-only in variable and function declarations: ch := make(chan int, 1)
var send chan<- int = ch
var recv <-chan int = ch
send <- 1 // ok
<- recv // ok
recv <- 1 // invalid operation: recv <- 1 (send to receive-only type <-chan int)
<- send // invalid operation: <-send (receive from send-only type chan<- int)
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