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Rollup merge of rust-lang#135083 - compiler-errors:invalid-predicate-source, r=camelid Do not ICE when encountering predicates from other items in method error reporting See the comments I left in the code and the test file. Fixes rust-lang#124350
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,18 @@ | ||
trait Wf { | ||
type Assoc; | ||
} | ||
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struct Wrapper<T: Wf<Assoc = U>, U>(T); | ||
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trait Trait { | ||
fn needs_sized(self); | ||
} | ||
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fn test<T>(t: T) { | ||
Wrapper(t).needs_sized(); | ||
//~^ ERROR the trait bound `T: Wf` is not satisfied | ||
//~| ERROR the trait bound `T: Wf` is not satisfied | ||
//~| the method `needs_sized` exists for struct `Wrapper<T, _>`, but its trait bounds were not satisfied | ||
} | ||
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fn main() {} |
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error[E0277]: the trait bound `T: Wf` is not satisfied | ||
--> $DIR/bad-wf-when-selecting-method.rs:12:13 | ||
| | ||
LL | Wrapper(t).needs_sized(); | ||
| ------- ^ the trait `Wf` is not implemented for `T` | ||
| | | ||
| required by a bound introduced by this call | ||
| | ||
note: required by a bound in `Wrapper` | ||
--> $DIR/bad-wf-when-selecting-method.rs:5:19 | ||
| | ||
LL | struct Wrapper<T: Wf<Assoc = U>, U>(T); | ||
| ^^^^^^^^^^^^^ required by this bound in `Wrapper` | ||
help: consider restricting type parameter `T` with trait `Wf` | ||
| | ||
LL | fn test<T: Wf>(t: T) { | ||
| ++++ | ||
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error[E0277]: the trait bound `T: Wf` is not satisfied | ||
--> $DIR/bad-wf-when-selecting-method.rs:12:5 | ||
| | ||
LL | Wrapper(t).needs_sized(); | ||
| ^^^^^^^^^^ the trait `Wf` is not implemented for `T` | ||
| | ||
note: required by a bound in `Wrapper` | ||
--> $DIR/bad-wf-when-selecting-method.rs:5:19 | ||
| | ||
LL | struct Wrapper<T: Wf<Assoc = U>, U>(T); | ||
| ^^^^^^^^^^^^^ required by this bound in `Wrapper` | ||
help: consider restricting type parameter `T` with trait `Wf` | ||
| | ||
LL | fn test<T: Wf>(t: T) { | ||
| ++++ | ||
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error[E0599]: the method `needs_sized` exists for struct `Wrapper<T, _>`, but its trait bounds were not satisfied | ||
--> $DIR/bad-wf-when-selecting-method.rs:12:16 | ||
| | ||
LL | struct Wrapper<T: Wf<Assoc = U>, U>(T); | ||
| ----------------------------------- method `needs_sized` not found for this struct | ||
... | ||
LL | Wrapper(t).needs_sized(); | ||
| ^^^^^^^^^^^ method cannot be called on `Wrapper<T, _>` due to unsatisfied trait bounds | ||
| | ||
= note: the following trait bounds were not satisfied: | ||
`T: Wf` | ||
help: consider restricting the type parameter to satisfy the trait bound | ||
| | ||
LL | fn test<T>(t: T) where T: Wf { | ||
| +++++++++++ | ||
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error: aborting due to 3 previous errors | ||
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Some errors have detailed explanations: E0277, E0599. | ||
For more information about an error, try `rustc --explain E0277`. |