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)
|
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();
| +++++++++++++++++++ +
```
73 lines
2.7 KiB
Text
73 lines
2.7 KiB
Text
error[E0790]: cannot call associated function on trait without specifying the corresponding `impl` type
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--> $DIR/E0790.rs:17:9
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LL | fn my_fn();
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| ----------- `MyTrait::my_fn` defined here
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...
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LL | MyTrait::my_fn();
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| ^^^^^^^^^^^^^^ cannot call associated function of trait
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help: use the fully-qualified path to the only available implementation
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LL | <MyStruct as MyTrait>::my_fn();
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| ++++++++++++ +
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error[E0790]: cannot refer to the associated constant on trait without specifying the corresponding `impl` type
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--> $DIR/E0790.rs:21:17
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LL | const MY_ASSOC_CONST: ();
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| ------------------------- `MyTrait::MY_ASSOC_CONST` defined here
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...
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LL | let _ = MyTrait::MY_ASSOC_CONST;
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| ^^^^^^^^^^^^^^^^^^^^^^^ cannot refer to the associated constant of trait
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help: use the fully-qualified path to the only available implementation
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LL | let _ = <MyStruct as MyTrait>::MY_ASSOC_CONST;
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| ++++++++++++ +
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error[E0790]: cannot call associated function on trait without specifying the corresponding `impl` type
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--> $DIR/E0790.rs:26:5
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LL | fn my_fn();
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| ----------- `MyTrait::my_fn` defined here
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...
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LL | inner::MyTrait::my_fn();
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| ^^^^^^^^^^^^^^^^^^^^^ cannot call associated function of trait
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help: use the fully-qualified path to the only available implementation
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LL | <MyStruct as inner::MyTrait>::my_fn();
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| ++++++++++++ +
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error[E0790]: cannot refer to the associated constant on trait without specifying the corresponding `impl` type
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--> $DIR/E0790.rs:30:13
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LL | const MY_ASSOC_CONST: ();
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| ------------------------- `MyTrait::MY_ASSOC_CONST` defined here
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...
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LL | let _ = inner::MyTrait::MY_ASSOC_CONST;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot refer to the associated constant of trait
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help: use the fully-qualified path to the only available implementation
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LL | let _ = <MyStruct as inner::MyTrait>::MY_ASSOC_CONST;
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| ++++++++++++ +
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error[E0790]: cannot call associated function on trait without specifying the corresponding `impl` type
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--> $DIR/E0790.rs:50:5
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LL | fn my_fn();
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| ----------- `MyTrait2::my_fn` defined here
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...
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LL | MyTrait2::my_fn();
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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 | </* self type */ as MyTrait2>::my_fn();
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| +++++++++++++++++++ +
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error: aborting due to 5 previous errors
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For more information about this error, try `rustc --explain E0790`.
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