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6efddac288
Expand the primary span of E0277 when the immediate unmet bound is not what the user wrote:
```
error[E0277]: the trait bound `i32: Bar` is not satisfied
--> f100.rs:6:6
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6 | <i32 as Foo>::foo();
| ^^^ the trait `Bar` is not implemented for `i32`, which is required by `i32: Foo`
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help: this trait has no implementations, consider adding one
--> f100.rs:2:1
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2 | trait Bar {}
| ^^^^^^^^^
note: required for `i32` to implement `Foo`
--> f100.rs:3:14
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3 | impl<T: Bar> Foo for T {}
| --- ^^^ ^
| |
| unsatisfied trait bound introduced here
```
Fix #40120.
48 lines
2.6 KiB
Plaintext
48 lines
2.6 KiB
Plaintext
error[E0277]: the trait bound `String: Copy` is not satisfied
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--> $DIR/const-fn-in-vec.rs:1:47
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LL | static _MAYBE_STRINGS: [Option<String>; 5] = [None; 5];
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| ^^^^ the trait `Copy` is not implemented for `String`, which is required by `Option<String>: Copy`
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= note: required for `Option<String>` to implement `Copy`
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= note: the `Copy` trait is required because this value will be copied for each element of the array
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= help: create an inline `const` block, see RFC #2920 <https://github.com/rust-lang/rfcs/pull/2920> for more information
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help: consider creating a new `const` item and initializing it with the result of the constructor to be used in the repeat position
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LL + const ARRAY_REPEAT_VALUE: Option<String> = None;
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LL ~ static _MAYBE_STRINGS: [Option<String>; 5] = [ARRAY_REPEAT_VALUE; 5];
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error[E0277]: the trait bound `String: Copy` is not satisfied
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--> $DIR/const-fn-in-vec.rs:7:34
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LL | let _strings: [String; 5] = [String::new(); 5];
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| ^^^^^^^^^^^^^ the trait `Copy` is not implemented for `String`
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= note: the `Copy` trait is required because this value will be copied for each element of the array
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= help: create an inline `const` block, see RFC #2920 <https://github.com/rust-lang/rfcs/pull/2920> for more information
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help: consider creating a new `const` item and initializing it with the result of the function call to be used in the repeat position
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LL ~ const ARRAY_REPEAT_VALUE: String = String::new();
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LL ~ let _strings: [String; 5] = [ARRAY_REPEAT_VALUE; 5];
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error[E0277]: the trait bound `String: Copy` is not satisfied
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--> $DIR/const-fn-in-vec.rs:9:48
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LL | let _maybe_strings: [Option<String>; 5] = [None; 5];
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| ^^^^ the trait `Copy` is not implemented for `String`, which is required by `Option<String>: Copy`
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= note: required for `Option<String>` to implement `Copy`
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= note: the `Copy` trait is required because this value will be copied for each element of the array
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= help: create an inline `const` block, see RFC #2920 <https://github.com/rust-lang/rfcs/pull/2920> for more information
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help: consider creating a new `const` item and initializing it with the result of the constructor to be used in the repeat position
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LL ~ const ARRAY_REPEAT_VALUE: Option<String> = None;
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LL ~ let _maybe_strings: [Option<String>; 5] = [ARRAY_REPEAT_VALUE; 5];
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error: aborting due to 3 previous errors
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For more information about this error, try `rustc --explain E0277`.
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