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
|
3 | impl<T: Bar> Foo for T {}
| --- ^^^ ^
| |
| unsatisfied trait bound introduced here
```
Fix #40120.
119 lines
4.9 KiB
Plaintext
119 lines
4.9 KiB
Plaintext
error[E0277]: the trait bound `i32: Foo` is not satisfied
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--> $DIR/feature-gate-trivial_bounds.rs:10:14
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LL | enum E where i32: Foo { V }
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| ^^^^^^^^ the trait `Foo` is not implemented for `i32`
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= help: the trait `Foo` is implemented for `()`
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= help: see issue #48214
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= help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
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error[E0277]: the trait bound `i32: Foo` is not satisfied
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--> $DIR/feature-gate-trivial_bounds.rs:12:16
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LL | struct S where i32: Foo;
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| ^^^^^^^^ the trait `Foo` is not implemented for `i32`
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= help: the trait `Foo` is implemented for `()`
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= help: see issue #48214
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= help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
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error[E0277]: the trait bound `i32: Foo` is not satisfied
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--> $DIR/feature-gate-trivial_bounds.rs:14:15
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LL | trait T where i32: Foo {}
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| ^^^^^^^^ the trait `Foo` is not implemented for `i32`
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= help: the trait `Foo` is implemented for `()`
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= help: see issue #48214
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= help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
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error[E0277]: the trait bound `i32: Foo` is not satisfied
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--> $DIR/feature-gate-trivial_bounds.rs:16:15
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LL | union U where i32: Foo { f: i32 }
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| ^^^^^^^^ the trait `Foo` is not implemented for `i32`
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= help: the trait `Foo` is implemented for `()`
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= help: see issue #48214
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= help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
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error[E0277]: the trait bound `i32: Foo` is not satisfied
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--> $DIR/feature-gate-trivial_bounds.rs:20:23
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LL | impl Foo for () where i32: Foo {
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| ^^^^^^^^ the trait `Foo` is not implemented for `i32`
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= help: the trait `Foo` is implemented for `()`
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= help: see issue #48214
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= help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
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error[E0277]: the trait bound `i32: Foo` is not satisfied
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--> $DIR/feature-gate-trivial_bounds.rs:28:14
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LL | fn f() where i32: Foo
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| ^^^^^^^^ the trait `Foo` is not implemented for `i32`
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= help: the trait `Foo` is implemented for `()`
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= help: see issue #48214
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= help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
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error[E0277]: the trait bound `String: Neg` is not satisfied
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--> $DIR/feature-gate-trivial_bounds.rs:36:38
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LL | fn use_op(s: String) -> String where String: ::std::ops::Neg<Output=String> {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Neg` is not implemented for `String`
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= help: see issue #48214
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= help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
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error[E0277]: `i32` is not an iterator
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--> $DIR/feature-gate-trivial_bounds.rs:40:20
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LL | fn use_for() where i32: Iterator {
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| ^^^^^^^^^^^^^ `i32` is not an iterator
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= help: the trait `Iterator` is not implemented for `i32`
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= note: if you want to iterate between `start` until a value `end`, use the exclusive range syntax `start..end` or the inclusive range syntax `start..=end`
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= help: see issue #48214
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= help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
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error[E0277]: the size for values of type `str` cannot be known at compilation time
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--> $DIR/feature-gate-trivial_bounds.rs:52:32
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LL | struct TwoStrs(str, str) where str: Sized;
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| ^^^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `str`
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= help: see issue #48214
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= help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
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error[E0277]: the size for values of type `(dyn A + 'static)` cannot be known at compilation time
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--> $DIR/feature-gate-trivial_bounds.rs:55:26
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LL | fn unsized_local() where Dst<dyn A>: Sized {
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| ^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: within `Dst<(dyn A + 'static)>`, the trait `Sized` is not implemented for `(dyn A + 'static)`, which is required by `Dst<(dyn A + 'static)>: Sized`
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note: required because it appears within the type `Dst<(dyn A + 'static)>`
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--> $DIR/feature-gate-trivial_bounds.rs:48:8
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LL | struct Dst<X: ?Sized> {
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| ^^^
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= help: see issue #48214
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= help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
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error[E0277]: the size for values of type `str` cannot be known at compilation time
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--> $DIR/feature-gate-trivial_bounds.rs:59:30
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LL | fn return_str() -> str where str: Sized {
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| ^^^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `str`
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= help: see issue #48214
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= help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
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error: aborting due to 11 previous errors
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For more information about this error, try `rustc --explain E0277`.
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