just curious: what is the best way to convert `Cha...

# coroutines

[deviant]

just curious: what is the best way to convert Channel into Sequence? is it possible? something like that

produce<Int>{
 send(1)
 send(2)
 send(3)
}
.asSequence()  // some suspendable helper?
.filter {it==1}

[jmfayard]

That does not make sense to me. At which point would your function go back from suspension? After all suspending functions are completed, possibly forever ?
The reason for choosing a sequence over a list is when you want it to be lazy.
But your producer is already lazy. What you probably want to do is apply a filter operator on top of the channel

[deviant]

yes. but there is no filter, map etc for the Channel

[deviant]

i tried this:

buildSequence {
        for (item in channel) {
            yield(item)
        }
    }

but it doen't allow me to iterate on channel inside of builder

[elizarov]

See this PR, it has a work-in-progress code around that and discussion https://github.com/Kotlin/kotlinx.coroutines/pull/88

[h0tk3y]

Also relevant: https://stackoverflow.com/questions/45368353/bridge-channel-to-a-sequence/45372089#45372089