Sender

A Sender is used to send values into a channel. Senders are output iterators, used with put or the .put() method.

Creating a Sender

Senders are created by the channel function:

let send recv = channel()
let send recv = channel 10  # buffered channel

Using a Sender

Send values using put or .put():

send.put 42
send.put "hello"

Methods

close error? :backtrace?

Closes the sender, signaling EOF to receivers. After closing:

• Sends will fail
• Receivers will eventually see no more values
• If error is provided, the receiver re-raises it from .next() once any buffered values have been drained

Parameters:

Name	Type	Description
error		Optional error value to propagate
backtrace	strand.Backtrace?	Optional backtrace for that error

send.close()
send.close "boom"

Example

let send recv = channel()

fork
  do
    send.put 1
    send.put 2
    send.put 3
    send.close()
  do for value = recv
    echo $value