29 lines
981 B
Rust
29 lines
981 B
Rust
pub trait Trait<'a, T> {}
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pub struct Struct<T>;
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//~^ ERROR `T` is never used
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pub enum Enum<T> {}
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//~^ ERROR `T` is never used
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pub union Union<T> {
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//~^ ERROR `T` is never used
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f1: usize,
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}
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impl<'a, T> Struct<T> for Trait<'a, T> {}
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//~^ ERROR expected trait, found struct `Struct`
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//~| WARNING trait objects without an explicit `dyn` are deprecated
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//~| WARNING this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
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impl<'a, T> Enum<T> for Trait<'a, T> {}
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//~^ ERROR expected trait, found enum `Enum`
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//~| WARNING trait objects without an explicit `dyn` are deprecated
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//~| WARNING this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
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impl<'a, T> Union<T> for Trait<'a, T> {}
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//~^ ERROR expected trait, found union `Union`
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//~| WARNING trait objects without an explicit `dyn` are deprecated
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//~| WARNING this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
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fn main() {}
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