2015-05-28 19:22 GMT+02:00 Mohit Thatte <mohit.tha...@gmail.com>:

> Changing wait-until to a macro seems like the simplest way to tackle this.
> It gives you access to pred at compile time, does not force the caller to
> add meta-data to pred, and you can construct the error message as you like.
>

I was actually thinking about constructing the fns you pass to `wait-until`
with a macro (defop, ..).

The challenge with your approach 1 would be to change all existing calls to
> wait-until and add meta to them.
>

Making `wait-until` a macro may  provide a way around that, but it won't
give useful information if you don't construct the op inline.

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