mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-31 13:04:42 +00:00
91 lines
3.4 KiB
Plaintext
91 lines
3.4 KiB
Plaintext
error: ambiguous `+` in a type
|
|
--> $DIR/trait-object-delimiters.rs:3:13
|
|
|
|
|
LL | fn foo1(_: &dyn Drop + AsRef<str>) {}
|
|
| ^^^^^^^^^^^^^^^^^^^^^ help: use parentheses to disambiguate: `(dyn Drop + AsRef<str>)`
|
|
|
|
error: incorrect parentheses around trait bounds
|
|
--> $DIR/trait-object-delimiters.rs:6:17
|
|
|
|
|
LL | fn foo2(_: &dyn (Drop + AsRef<str>)) {}
|
|
| ^ ^
|
|
|
|
|
help: fix the parentheses
|
|
|
|
|
LL - fn foo2(_: &dyn (Drop + AsRef<str>)) {}
|
|
LL + fn foo2(_: &(dyn Drop + AsRef<str>)) {}
|
|
|
|
|
|
|
error: incorrect parentheses around trait bounds
|
|
--> $DIR/trait-object-delimiters.rs:8:25
|
|
|
|
|
LL | fn foo2_no_space(_: &dyn(Drop + AsRef<str>)) {}
|
|
| ^ ^
|
|
|
|
|
help: fix the parentheses
|
|
|
|
|
LL - fn foo2_no_space(_: &dyn(Drop + AsRef<str>)) {}
|
|
LL + fn foo2_no_space(_: &(dyn Drop + AsRef<str>)) {}
|
|
|
|
|
|
|
error: expected parameter name, found `{`
|
|
--> $DIR/trait-object-delimiters.rs:10:17
|
|
|
|
|
LL | fn foo3(_: &dyn {Drop + AsRef<str>}) {}
|
|
| ^ expected parameter name
|
|
|
|
error: expected one of `!`, `(`, `)`, `*`, `,`, `?`, `for`, `~`, lifetime, or path, found `{`
|
|
--> $DIR/trait-object-delimiters.rs:10:17
|
|
|
|
|
LL | fn foo3(_: &dyn {Drop + AsRef<str>}) {}
|
|
| -^ expected one of 10 possible tokens
|
|
| |
|
|
| help: missing `,`
|
|
|
|
error: expected identifier, found `<`
|
|
--> $DIR/trait-object-delimiters.rs:14:17
|
|
|
|
|
LL | fn foo4(_: &dyn <Drop + AsRef<str>>) {}
|
|
| ^ expected identifier
|
|
|
|
error: invalid `dyn` keyword
|
|
--> $DIR/trait-object-delimiters.rs:16:25
|
|
|
|
|
LL | fn foo5(_: &(dyn Drop + dyn AsRef<str>)) {}
|
|
| ^^^ help: remove this keyword
|
|
|
|
|
= help: `dyn` is only needed at the start of a trait `+`-separated list
|
|
|
|
error[E0225]: only auto traits can be used as additional traits in a trait object
|
|
--> $DIR/trait-object-delimiters.rs:3:24
|
|
|
|
|
LL | fn foo1(_: &dyn Drop + AsRef<str>) {}
|
|
| ---- ^^^^^^^^^^ additional non-auto trait
|
|
| |
|
|
| first non-auto trait
|
|
|
|
|
= help: consider creating a new trait with all of these as supertraits and using that trait here instead: `trait NewTrait: Drop + AsRef<str> {}`
|
|
= note: auto-traits like `Send` and `Sync` are traits that have special properties; for more information on them, visit <https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits>
|
|
|
|
error[E0224]: at least one trait is required for an object type
|
|
--> $DIR/trait-object-delimiters.rs:10:13
|
|
|
|
|
LL | fn foo3(_: &dyn {Drop + AsRef<str>}) {}
|
|
| ^^^
|
|
|
|
error[E0225]: only auto traits can be used as additional traits in a trait object
|
|
--> $DIR/trait-object-delimiters.rs:16:29
|
|
|
|
|
LL | fn foo5(_: &(dyn Drop + dyn AsRef<str>)) {}
|
|
| ---- ^^^^^^^^^^ additional non-auto trait
|
|
| |
|
|
| first non-auto trait
|
|
|
|
|
= help: consider creating a new trait with all of these as supertraits and using that trait here instead: `trait NewTrait: Drop + AsRef<str> {}`
|
|
= note: auto-traits like `Send` and `Sync` are traits that have special properties; for more information on them, visit <https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits>
|
|
|
|
error: aborting due to 10 previous errors
|
|
|
|
Some errors have detailed explanations: E0224, E0225.
|
|
For more information about an error, try `rustc --explain E0224`.
|