Use lifetimes on type-alias-impl-trait used in function signatures to infer output type lifetimes #96903
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… infer output type lifetimes
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…aints, r=compiler-errors Use lifetimes on type-alias-impl-trait used in function signatures to infer output type lifetimes fixes rust-lang#96564 TLDR: ```rust fn execute(ty: Ty<'_>) -> &str { todo!() } ``` (`Ty` being a type alias impl trait) used to produce the following error before this PR ``` error[E0581]: return type references an anonymous lifetime, which is not constrained by the fn input types --> src/lib.rs:4:27 | 4 | fn execute(ty: Ty<'_>) -> &str { todo!() } | ^^^^ | = note: lifetimes appearing in an associated type are not considered constrained ```
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Rollup of 7 pull requests Successful merges: - rust-lang#96543 (Remove hacks in `make_token_stream`.) - rust-lang#96887 (rustdoc: correct path to type alias methods) - rust-lang#96896 (Add regression test for rust-lang#68408) - rust-lang#96900 (Fix js error) - rust-lang#96903 (Use lifetimes on type-alias-impl-trait used in function signatures to infer output type lifetimes) - rust-lang#96916 (simplify length count) - rust-lang#96925 (Fix issue rust-lang#95151) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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fixes #96564
TLDR:
(
Tybeing a type alias impl trait) used to produce the following error before this PR