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5c414094ac
When a method not found on a type parameter could have been provided by any
of multiple traits, suggest each trait individually, instead of a single
suggestion to restrict the type parameter with *all* of them.
Before:
```
error[E0599]: the method `cmp` exists for reference `&T`, but its trait bounds were not satisfied
--> $DIR/method-on-unbounded-type-param.rs:5:10
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LL | (&a).cmp(&b)
| ^^^ method cannot be called on `&T` due to unsatisfied trait bounds
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= note: the following trait bounds were not satisfied:
`T: Ord`
which is required by `&T: Ord`
`&T: Iterator`
which is required by `&mut &T: Iterator`
`T: Iterator`
which is required by `&mut T: Iterator`
help: consider restricting the type parameters to satisfy the trait bounds
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LL | fn g<T>(a: T, b: T) -> std::cmp::Ordering where T: Iterator, T: Ord {
| +++++++++++++++++++++++++
```
After:
```
error[E0599]: the method `cmp` exists for reference `&T`, but its trait bounds were not satisfied
--> $DIR/method-on-unbounded-type-param.rs:5:10
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LL | (&a).cmp(&b)
| ^^^ method cannot be called on `&T` due to unsatisfied trait bounds
|
= note: the following trait bounds were not satisfied:
`T: Ord`
which is required by `&T: Ord`
`&T: Iterator`
which is required by `&mut &T: Iterator`
`T: Iterator`
which is required by `&mut T: Iterator`
= help: items from traits can only be used if the type parameter is bounded by the trait
help: the following traits define an item `cmp`, perhaps you need to restrict type parameter `T` with one of them:
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LL | fn g<T: Ord>(a: T, b: T) -> std::cmp::Ordering {
| +++++
LL | fn g<T: Iterator>(a: T, b: T) -> std::cmp::Ordering {
| ++++++++++
```
Fix #108428.
90 lines
2.8 KiB
Plaintext
90 lines
2.8 KiB
Plaintext
error[E0061]: this method takes 0 arguments but 1 argument was supplied
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--> $DIR/method-call-err-msg.rs:13:7
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LL | x.zero(0)
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| ^^^^ -
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| unexpected argument of type `{integer}`
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| help: remove the extra argument
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note: method defined here
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--> $DIR/method-call-err-msg.rs:5:8
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LL | fn zero(self) -> Foo { self }
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| ^^^^
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error[E0061]: this method takes 1 argument but 0 arguments were supplied
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--> $DIR/method-call-err-msg.rs:14:7
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LL | .one()
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| ^^^-- an argument of type `isize` is missing
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note: method defined here
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--> $DIR/method-call-err-msg.rs:6:8
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LL | fn one(self, _: isize) -> Foo { self }
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| ^^^ --------
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help: provide the argument
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LL | .one(/* isize */)
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| ~~~~~~~~~~~~~
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error[E0061]: this method takes 2 arguments but 1 argument was supplied
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--> $DIR/method-call-err-msg.rs:15:7
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LL | .two(0);
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| ^^^--- an argument of type `isize` is missing
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note: method defined here
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--> $DIR/method-call-err-msg.rs:7:8
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LL | fn two(self, _: isize, _: isize) -> Foo { self }
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| ^^^ -------- --------
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help: provide the argument
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LL | .two(0, /* isize */);
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| ~~~~~~~~~~~~~~~~
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error[E0599]: `Foo` is not an iterator
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--> $DIR/method-call-err-msg.rs:19:7
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LL | pub struct Foo;
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| -------------- method `take` not found for this struct because it doesn't satisfy `Foo: Iterator`
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...
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LL | / y.zero()
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LL | | .take()
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| | -^^^^ `Foo` is not an iterator
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| |______|
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= note: the following trait bounds were not satisfied:
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`Foo: Iterator`
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which is required by `&mut Foo: Iterator`
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note: the trait `Iterator` must be implemented
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--> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL
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= help: items from traits can only be used if the trait is implemented and in scope
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= note: the following traits define an item `take`, perhaps you need to implement one of them:
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candidate #1: `std::io::Read`
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candidate #2: `Iterator`
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error[E0061]: this method takes 3 arguments but 0 arguments were supplied
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--> $DIR/method-call-err-msg.rs:21:7
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LL | y.three::<usize>();
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| ^^^^^^^^^^^^^^-- three arguments of type `usize`, `usize`, and `usize` are missing
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note: method defined here
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--> $DIR/method-call-err-msg.rs:8:8
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LL | fn three<T>(self, _: T, _: T, _: T) -> Foo { self }
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| ^^^^^ ---- ---- ----
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help: provide the arguments
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LL | y.three::<usize>(/* usize */, /* usize */, /* usize */);
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| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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error: aborting due to 5 previous errors
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Some errors have detailed explanations: E0061, E0599.
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For more information about an error, try `rustc --explain E0061`.
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