Lazy type aliases: Diagnostics: Detect bivariant ty params that are only used recursively #127976
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…iaskrgr Rollup of 6 pull requests Successful merges: - rust-lang#127295 (CFI: Support provided methods on traits) - rust-lang#127814 (`C-cmse-nonsecure-call`: improved error messages) - rust-lang#127949 (fix: explain E0120 better cover cases when its raised) - rust-lang#127966 (Use structured suggestions for unconstrained generic parameters on impl blocks) - rust-lang#127976 (Lazy type aliases: Diagostics: Detect bivariant ty params that are only used recursively) - rust-lang#127978 (Avoid ref when using format! for perf) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#127976 - fmease:lta-cyclic-bivariant-param-better-err, r=compiler-errors Lazy type aliases: Diagostics: Detect bivariant ty params that are only used recursively Follow-up to errs's rust-lang#127871. Extends the logic to cover LTAs, too, not just ADTs. This change only takes effect with the next-gen solver enabled as cycle errors like the one we have here are fatal in the old solver. That's my explanation anyways. r? compiler-errors
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Follow-up to errs's #127871. Extends the logic to cover LTAs, too, not just ADTs.
This change only takes effect with the next-gen solver enabled as cycle errors like
the one we have here are fatal in the old solver. That's my explanation anyways.
r? compiler-errors