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09f16b596d
Do not attempt to provide an accurate suggestion for `impl Trait` in bare trait types when linting. Instead, only do the object safety check when an E0782 is already going to be emitted in the 2021 edition. Fix #120241.
22 lines
979 B
Plaintext
22 lines
979 B
Plaintext
error[E0038]: the trait `Ord` cannot be made into an object
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--> $DIR/bare-trait-dont-suggest-dyn.rs:8:33
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LL | fn ord_prefer_dot(s: String) -> Ord {
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| ^^^ `Ord` cannot be made into an object
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note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
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--> $SRC_DIR/core/src/cmp.rs:LL:COL
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= note: the trait cannot be made into an object because it uses `Self` as a type parameter
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::: $SRC_DIR/core/src/cmp.rs:LL:COL
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= note: the trait cannot be made into an object because it uses `Self` as a type parameter
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help: consider using an opaque type instead
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LL | fn ord_prefer_dot(s: String) -> impl Ord {
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| ++++
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0038`.
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