48167bd4bd
When a trait is used without specifying the implementation (e.g. calling
a non-member associated function without fully-qualified syntax) and
there are multiple implementations available, use a placeholder comment
for the implementation type in the suggestion instead of picking a
random implementation.
Example:
```
fn main() {
let _ = Default::default();
}
```
Previous output:
```
error[E0790]: cannot call associated function on trait without specifying the corresponding `impl` type
--> test.rs:2:13
|
2 | let _ = Default::default();
| ^^^^^^^^^^^^^^^^ cannot call associated function of trait
|
help: use a fully-qualified path to a specific available implementation (273 found)
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2 | let _ = <FileTimes as Default>::default();
| +++++++++++++ +
```
New output:
```
error[E0790]: cannot call associated function on trait without specifying the corresponding `impl` type
--> test.rs:2:13
|
2 | let _ = Default::default();
| ^^^^^^^^^^^^^^^^ cannot call associated function of trait
|
help: use a fully-qualified path to a specific available implementation (273 found)
|
2 | let _ = </* self type */ as Default>::default();
| +++++++++++++++++++ +
```
38 lines
1.3 KiB
Plaintext
38 lines
1.3 KiB
Plaintext
error[E0790]: cannot call associated function on trait without specifying the corresponding `impl` type
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--> $DIR/E0283.rs:30:21
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LL | fn create() -> u32;
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| ------------------- `Generator::create` defined here
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...
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LL | let cont: u32 = Generator::create();
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| ^^^^^^^^^^^^^^^^^ cannot call associated function of trait
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help: use a fully-qualified path to a specific available implementation (2 found)
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LL | let cont: u32 = </* self type */ as Generator>::create();
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| +++++++++++++++++++ +
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error[E0283]: type annotations needed
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--> $DIR/E0283.rs:35:24
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LL | let bar = foo_impl.into() * 1u32;
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| ^^^^
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note: multiple `impl`s satisfying `Impl: Into<_>` found
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--> $DIR/E0283.rs:17:1
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LL | impl Into<u32> for Impl {
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| ^^^^^^^^^^^^^^^^^^^^^^^
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= note: and another `impl` found in the `core` crate:
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- impl<T, U> Into<U> for T
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where U: From<T>;
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help: try using a fully qualified path to specify the expected types
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LL | let bar = <Impl as Into<T>>::into(foo_impl) * 1u32;
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| ++++++++++++++++++++++++ ~
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error: aborting due to 2 previous errors
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Some errors have detailed explanations: E0283, E0790.
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For more information about an error, try `rustc --explain E0283`.
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