Comment by xlii
19 hours ago
No I'm not. This is often brought up.
I spent 3 months analyzing failures caused by - what looked like - dirty builds but was caused by unstable compilation order. Which is quite obvious.
The solution is dynamic dependency resolution but this causes problem with macros.
The problem is easy to validate. Compile application multiple time and compare hashes. I'm not sure if it's sufficiently visible in bootstrapped Phoenix but I saw it in as small as <1000 LoC toy apps.
Please file a bug report if you can indeed isolate/reproduce it (and please ping me on GitHub once you do)!
I've made one for Phoenix (as per - it creates a cycle), though unstable compilation is a wider issue.
https://github.com/phoenixframework/phoenix/issues/6697
In case you want to see files affected I made extended writeup on my blog - for reference. https://xlii.space/eng/elixir-cycles/