| Age | Commit message (Collapse) | Author | Lines |
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When encountering an unmet trait bound, point at local type that doesn't implement the trait:
```
error[E0277]: the trait bound `Bar<T>: Foo` is not satisfied
--> $DIR/issue-64855.rs:9:19
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LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ;
| ^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
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help: the trait `Foo` is not implemented for `Bar<T>`
--> $DIR/issue-64855.rs:9:1
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LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ;
| ^^^^^^^^^^^^^^^^^
```
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When suggesting field access which would encounter a method not found, do not suggest pinning when those methods are on `impl Pin` itself.
```
error[E0599]: no method named `get_ref` found for tuple `(BufReader<File>,)` in the current scope
--> $DIR/missing-field-access.rs:11:15
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LL | let x = f.get_ref();
| ^^^^^^^ method not found in `(BufReader<File>,)`
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help: one of the expressions' fields has a method of the same name
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LL | let x = f.0.get_ref();
| ++
```
instead of
```
error[E0599]: no method named `get_ref` found for tuple `(BufReader<File>,)` in the current scope
--> $DIR/missing-field-access.rs:11:15
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LL | let x = f.get_ref();
| ^^^^^^^ method not found in `(BufReader<File>,)`
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help: one of the expressions' fields has a method of the same name
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LL | let x = f.0.get_ref();
| ++
help: consider pinning the expression
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LL ~ let mut pinned = std::pin::pin!(f);
LL ~ let x = pinned.as_ref().get_ref();
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```
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When looking for the field names and types of a given type, account for tuples. This allows suggestions for incorrectly nested field accesses and field name typos to trigger as intended. Previously these suggestions only worked on `ty::Adt`, including tuple structs which are no different to tuples, so they should behave the same in suggestions.
```
error[E0599]: no method named `get_ref` found for tuple `(BufReader<File>,)` in the current scope
--> $DIR/missing-field-access.rs:11:15
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LL | let x = f.get_ref();
| ^^^^^^^ method not found in `(BufReader<File>,)`
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help: one of the expressions' fields has a method of the same name
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LL | let x = f.0.get_ref();
| ++
```
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```
error[E0610]: `{integer}` is a primitive type and therefore doesn't have fields
--> $DIR/attempted-access-non-fatal.rs:7:15
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LL | let _ = 2.l;
| ^
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help: if intended to be a floating point literal, consider adding a `0` after the period and a `f64` suffix
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LL - let _ = 2.l;
LL + let _ = 2.0f64;
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```
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```
help: consider restricting type parameter `T` with traits `Copy` and `Trait`
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LL | fn duplicate_custom<T: Copy + Trait>(t: S<T>) -> (S<T>, S<T>) {
| ++++++++++++++
```
```
help: consider restricting type parameter `V` with trait `Copy`
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LL | fn index<'a, K, V: std::marker::Copy>(map: &'a HashMap<K, V>, k: K) -> &'a V {
| +++++++++++++++++++
```
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On nightly, we mention the trait is unstable
```
error[E0277]: the trait bound `T: Unstable` is not satisfied
--> $DIR/unstable-trait-suggestion.rs:13:9
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LL | foo(t)
| --- ^ the trait `Unstable` is not implemented for `T`
| |
| required by a bound introduced by this call
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note: required by a bound in `foo`
--> $DIR/unstable-trait-suggestion.rs:9:11
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LL | fn foo<T: Unstable>(_: T) {}
| ^^^^^^^^ required by this bound in `foo`
help: consider restricting type parameter `T` but it is an `unstable` trait
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LL | pub fn demo<T: Unstable>(t: T) {
| ++++++++++
```
On stable, we don't suggest the trait at all
```
error[E0277]: the trait bound `T: Unstable` is not satisfied
--> $DIR/unstable-trait-suggestion.rs:13:9
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LL | foo(t)
| --- ^ the trait `Unstable` is not implemented for `T`
| |
| required by a bound introduced by this call
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note: required by a bound in `foo`
--> $DIR/unstable-trait-suggestion.rs:9:11
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LL | fn foo<T: Unstable>(_: T) {}
| ^^^^^^^^ required by this bound in `foo`
```
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Fix error message
Fix tests
Format
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Co-authored-by: Adrian <adrian.iosdev@gmail.com>
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When encountering a `Result<T, _>` or `Option<T>` where `T` has a field
that's being accessed, suggest calling `.unwrap()` to get to the field.
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Take into account implicit dereferences when suggesting fields.
```
error[E0609]: no field `longname` on type `Arc<S>`
--> $DIR/suggest-field-through-deref.rs:10:15
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LL | let _ = x.longname;
| ^^^^^^^^ help: a field with a similar name exists: `long_name`
```
CC https://github.com/rust-lang/rust/issues/78374#issuecomment-719564114
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- Either explicitly annotate `let x: () = expr;` where `x` has unit
type, or remove the unit binding to leave only `expr;` instead.
- Fix disjoint-capture-in-same-closure test
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to avoid going over the existing limit now that the ui-fulldeps tests have
been moved to ui.
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The previous output was unintuitive to users.
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