6982785f18
The `impl_trait_overcaptures` lint is part of the migration to Rust 2024 and the Lifetime Capture Rules 2024. Now that we've stabilized precise capturing (RFC 3617), let's tie this lint to the `rust_2024_compatibility` lint group.
33 lines
955 B
Rust
33 lines
955 B
Rust
//@ run-rustfix
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#![allow(unused)]
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#![deny(impl_trait_overcaptures)]
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fn named<'a>(x: &'a i32) -> impl Sized { *x }
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//~^ ERROR `impl Sized` will capture more lifetimes than possibly intended in edition 2024
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//~| WARN this changes meaning in Rust 2024
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fn implicit(x: &i32) -> impl Sized { *x }
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//~^ ERROR `impl Sized` will capture more lifetimes than possibly intended in edition 2024
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//~| WARN this changes meaning in Rust 2024
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struct W;
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impl W {
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fn hello(&self, x: &i32) -> impl Sized + '_ { self }
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//~^ ERROR `impl Sized + '_` will capture more lifetimes than possibly intended in edition 2024
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//~| WARN this changes meaning in Rust 2024
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}
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trait Higher<'a> {
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type Output;
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}
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impl Higher<'_> for () {
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type Output = ();
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}
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fn hrtb() -> impl for<'a> Higher<'a, Output = impl Sized> {}
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//~^ ERROR `impl Sized` will capture more lifetimes than possibly intended in edition 2024
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//~| WARN this changes meaning in Rust 2024
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fn main() {}
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