Const section should check for side-effects

[dom96]

import os

const
  foo = getHomeDir() / "asd"

The above code should raise an error.

[andreaferretti]

Well, in this case yes, but I think one may very well want to perform side effects in consts - for instance read something by a configuration file and have it stored in the binary

[dom96]

Good point.

Any other ideas on how we could prevent the above gotcha? Simply removing compile-time getHomeDir would work but I'm sure there are cases where it would be useful also.

[Araq]

We can try and make getHomeDir work in the VM but not in a const section, these have separate code paths already iirc. And for now only getHomeDir did bite us.

[github-actions[bot]]

This RFC is stale because it has been open for 1095 days with no activity. Contribute a fix or comment on the issue, or it will be closed in 30 days.

[Araq]

Too useful to close it.