Closed anderseknert closed 1 month ago
Agreed that entrypoint
is applicable to document
or package
(or I suppose, subpackages
) but rule
does not make sense (and similarly, if we had a file
scope, it wouldn't make sense either.) I'm guessing this was just an oversight in the original implementation.
After having used annotations a fair amount recently I would say that having to specify the scope
is a bit of a pain and most often felt with the document
scope. It's just another thing that users can get wrong.
I wonder if we could default the scope differently than we already do today... the current defaults are based on the place in the file, e.g., preceeding a package makes it package
scope and preceeding a rule makes it rule
scope. Instead of using the file location, what if each type of annotation had a required scope... then the default/inferred scope would be the maximum scope of all the annotations in the METADATA snippet.
Changing the default scope of annotations is a semantic change. Would this be a v1 feature? Or, to not risk pushing that release back even further with additional changes, even v2 (assuming we tighten the major version cadence)?
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Having worked on some Regal rules around metadata annotations recently, and the ambiguous-scope rule specifically, I was surprised to see that the
entrypoint
attribute worked for annotations scoped torule
. AFAIK, an entrypoint will always point to the "whole" rule — in other words thedocument
. I thought it was just an oversight, and a (by all means, harmless) bug that something silly like defining an incremental rule where one isentrypoint: true
and the other isentrypoint: false
was allowed, as clearly both will be evaluated when one of them is marked as an entrypoint?But now that I tried to change the scope to
document
, that's apparently a parser error 🤔Which had me check the documentation on
entrypoint
, and the docs confirm this too:So while this isn't a bug in the sense that something isn't working as intended or documented — this doesn't seem right to me? Isn't an entrypoint on a rule always scoped to the whole rule (i.e. the document) rather than a specific rule definition?