Account for impl Trait { when impl Trait for Type { was intended
#131273
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
On editions where bare traits are never allowed, detect if the user has
written `impl Trait` with no type, silence any dyn-compatibility errors,
and provide a structured suggestion for the potentially missing type:
```
error[E0782]: trait objects must include the `dyn` keyword
--> $DIR/missing-for-type-in-impl.rs:8:6
|
LL | impl Foo<i64> {
| ^^^^^^^^
|
help: add `dyn` keyword before this trait
|
LL | impl dyn Foo<i64> {
| +++
help: you might have intended to implement this trait for a given type
|
LL | impl Foo<i64> for /* Type */ {
| ++++++++++++++
```
|
r? @Nadrieril rustbot has assigned @Nadrieril. Use |
rustbot
added
S-waiting-on-review
|
HIR ty lowering was modified cc @fmease |
compiler-errors
approved these changes
Oct 4, 2024
|
r=me when green |
compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs
Show resolved
Hide resolved
|
@bors r+ rollup |
bors
added
S-waiting-on-bors
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Oct 5, 2024
…kingjubilee Rollup of 9 pull requests Successful merges: - rust-lang#129517 (Compute array length from type for unconditional panic lint. ) - rust-lang#130367 (Check elaborated projections from dyn don't mention unconstrained late bound lifetimes) - rust-lang#130403 (Stabilize `const_slice_from_raw_parts_mut`) - rust-lang#130633 (Add support for reborrowing pinned method receivers) - rust-lang#131105 (update `Literal`'s intro) - rust-lang#131194 (Fix needless_lifetimes in stable_mir) - rust-lang#131260 (rustdoc: cleaner errors on disambiguator/namespace mismatches) - rust-lang#131267 (Stabilize `BufRead::skip_until`) - rust-lang#131273 (Account for `impl Trait {` when `impl Trait for Type {` was intended) r? `@ghost` `@rustbot` modify labels: rollup
rust-timer
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Oct 5, 2024
Rollup merge of rust-lang#131273 - estebank:issue-131051, r=compiler-errors Account for `impl Trait {` when `impl Trait for Type {` was intended On editions where bare traits are never allowed, detect if the user has written `impl Trait` with no type, silence any dyn-compatibility errors, and provide a structured suggestion for the potentially missing type: ``` error[E0782]: trait objects must include the `dyn` keyword --> $DIR/missing-for-type-in-impl.rs:8:6 | LL | impl Foo<i64> { | ^^^^^^^^ | help: add `dyn` keyword before this trait | LL | impl dyn Foo<i64> { | +++ help: you might have intended to implement this trait for a given type | LL | impl Foo<i64> for /* Type */ { | ++++++++++++++ ``` CC rust-lang#131051.
# for free
to join this conversation on GitHub.
Already have an account?
# to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
On editions where bare traits are never allowed, detect if the user has written
impl Traitwith no type, silence any dyn-compatibility errors, and provide a structured suggestion for the potentially missing type:CC #131051.