I found this line: <pre class="prettyprint"><code>return (<-chan Delivery)(deliveries), nil </code></pre> https://github.com/streadway/amqp/blob/master/channel.go#L1089 What does it do? Why the double parentheses?

It's a type conversion. In your case, it converts <code>chan Delivery</code> (two-way channel of <code>Delivery</code> values) to <code><-chan Delivery</code> (receive-only channel of <code>Delivery</code> values).

It is a type conversion. Returns <code>deliveries</code> as a read-only channel.

What does `(<-chan Delivery)(deliveries)` do?

Tags:

go

I found this line:

return (<-chan Delivery)(deliveries), nil

https://github.com/streadway/amqp/blob/master/channel.go#L1089

What does it do? Why the double parentheses?

979

asked Jan 21 '15 12:01

Sławosz

2 Answers

It's a type conversion. In your case, it converts chan Delivery (two-way channel of Delivery values) to <-chan Delivery (receive-only channel of Delivery values).

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