improve (HLS)ValidationIssue about mamba HOT 2 OPEN

I'm not sure.

We have two opposing concerns.

(1) We'd like all users to be able to create custom ValidationIssues for their custom HLS tags. So, having a string is useful for that.
(2) We'd like to be able to id specific validation issues in code. An enum is best for that.

I wonder if we'd be better off with a IssueDescription protocol instead? Something like:

protocol IssueDescription {
   var description: String {get}

   func isEqual(to: IssueDescription) -> Bool
}

Users would probably implement this via a String enum. Then everyone could define their own, but by using the isEqual hack (which would have to do some casting, which is gross but useful) you'd also be able to tell what specific issue you are having.

Anyway, I'm also not eager to foist a second breaking change on our users so soon after 2.0 (this would have to be 3.0 if we just did it without a transition plan).

from mamba.

"Anyway, I'm also not eager to foist a second breaking change on our users so soon after 2.0 (this would have to be 3.0 if we just did it without a transition plan)."

totally agree with that, just wanted to bring it up since I ran across the comment

from mamba.