[_halgari]

you could do it with channels, but also by extending the go macro itself. The mini compiler behind the go macro is designed to be extensible. In the test suite for core.async the compiler is run through a series of tests using a "runner" implementation of the go macro: https://github.com/clojure/core.async/blob/master/src/test/c...

I've had generators working several times with an approach like this, but as it doesn't really fit with the rest of the library, I removed them.

All that being said, these APIs are internal and could change at any moment.

[mjw]

Aha, thanks for the pointers, that helps. I suspected something simpler might be possible using these ioc macros but was frankly a bit scared off by them at first :)

It'd be nice if the coroutine/inversion-of-control stuff was given a stable public API at some point, because those macros seem very powerful and neat in themselves and might have other interesting uses aside from channels.