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Report self-recursive aliases at their declaration site, not in usages

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Closes #2380
This commit is contained in:
ayazhafiz 2022-01-22 14:26:32 -05:00
parent bec222b0c3
commit 48a3e871e8
4 changed files with 92 additions and 65 deletions
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3
compiler/types/src/types.rs
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@ -886,6 +886,9 @@ fn symbols_help(tipe: &Type, accum: &mut ImSet<Symbol>) {
accum.insert(*symbol);
args.iter().for_each(|arg| symbols_help(arg, accum));
}
Erroneous(Problem::CyclicAlias(alias, _, _)) => {
accum.insert(*alias);
}
EmptyRec | EmptyTagUnion | ClosureTag { .. } | Erroneous(_) | Variable(_) => {}
}
}