Walk types more carefully in ProhibitOpaqueTypes visitor
#104296
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r? @lcnr (rustbot has picked a reviewer for you, use r? to override) |
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would it be better to first normalize the whole type, and then only search for opaque types instead of lazily normalizing projections? no matter whether you want to change that r=me |
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Oh, lol, I didn't see this comment:
I thought we wanted to trigger when we see an opaque in the un-normalized projection. Yeah, normalizing first is much easier lol. |
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Nov 15, 2022
…iaskrgr Rollup of 9 pull requests Successful merges: - rust-lang#103439 (Show note where the macro failed to match) - rust-lang#103734 (Adjust stabilization version to 1.65.0 for wasi fds) - rust-lang#104148 (Visit attributes of trait impl items during AST validation) - rust-lang#104241 (Move most of unwind's build script to lib.rs) - rust-lang#104258 (Deduce closure signature from a type alias `impl Trait`'s supertraits) - rust-lang#104296 (Walk types more carefully in `ProhibitOpaqueTypes` visitor) - rust-lang#104309 (Slightly improve error message for invalid identifier) - rust-lang#104316 (Simplify suggestions for errors in generators.) - rust-lang#104339 (Add `rustc_deny_explicit_impl`) Failed merges: - rust-lang#103484 (Add `rust` to `let_underscore_lock` example) r? `@ghost` `@rustbot` modify labels: rollup
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The visitor didn't account for the case where you could have
<TAIT as Trait>::Assocnormalize to itself, in the case of atype TAIT = impl Traitwith an unconstrained associated type. That causes the visitor to loop on the same type over and over.Fixes #104291