4b26b80dd5
Remove return type sized check hack from hir typeck Remove a bunch of special-cased suggestions when someone returns `-> dyn Trait` that checks for type equality, etc. This was a pretty complex piece of code that also relied on a hack in hir typeck (see changes to `compiler/rustc_hir_typeck/src/check.rs`), and I'm not convinced that it's necessary to maintain, when all we really need to tell the user is that they should return `-> impl Trait` or `-> Box<dyn Trait>`, depending on their specific use-case. This is necessary because we may need to move the "return type is sized" check from hir typeck to wfcheck, which does not have access to typeck results. This is a prerequisite for that, and I'm fairly confident that the diagnostics "regressions" here are not a big deal. |
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| .. | ||
| src | ||
| Cargo.toml | ||
| messages.ftl | ||