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merged 1 commit into from
Aug 23, 2025

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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
   |
LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ;
   |                   ^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
   |
help: the trait `Foo` is not implemented for `Bar<T>`
  --> $DIR/issue-64855.rs:9:1
   |
LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ;
   | ^^^^^^^^^^^^^^^^^

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rustbot commented Aug 20, 2025

r? @davidtwco

rustbot has assigned @davidtwco.
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@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver) labels Aug 20, 2025
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rustbot commented Aug 20, 2025

This PR modifies tests/ui/issues/. If this PR is adding new tests to tests/ui/issues/,
please refrain from doing so, and instead add it to more descriptive subdirectories.

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@estebank estebank force-pushed the point-at-type-in-e0277 branch from e6812a5 to 7c6dfde Compare August 20, 2025 18:16
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r=me once rebased to fix CI

@estebank estebank force-pushed the point-at-type-in-e0277 branch from 7c6dfde to 8662dcf Compare August 21, 2025 16:49
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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
   |
LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ;
   |                   ^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
   |
help: the trait `Foo` is not implemented for `Bar<T>`
  --> $DIR/issue-64855.rs:9:1
   |
LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ;
   | ^^^^^^^^^^^^^^^^^
```
@estebank estebank force-pushed the point-at-type-in-e0277 branch from 8662dcf to 049c327 Compare August 22, 2025 17:55
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rustbot commented Aug 22, 2025

This PR was rebased onto a different master commit. Here's a range-diff highlighting what actually changed.

Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers.

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@bors r=davidtwco

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bors commented Aug 22, 2025

📌 Commit 049c327 has been approved by davidtwco

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Aug 22, 2025
jhpratt added a commit to jhpratt/rust that referenced this pull request Aug 22, 2025
…=davidtwco

On E0277, point at type that doesn't implement bound

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
   |
LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ;
   |                   ^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
   |
help: the trait `Foo` is not implemented for `Bar<T>`
  --> $DIR/issue-64855.rs:9:1
   |
LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ;
   | ^^^^^^^^^^^^^^^^^
```
bors added a commit that referenced this pull request Aug 23, 2025
Rollup of 20 pull requests

Successful merges:

 - #132087 (Fix overly restrictive lifetime in `core::panic::Location::file` return type)
 - #137396 (Recover `param: Ty = EXPR`)
 - #142185 (Convert moves of references to copies in ReferencePropagation)
 - #144443 (Make target pointer width in target json an integer)
 - #144648 (Implementation: `#[feature(nonpoison_rwlock)]`)
 - #144897 (print raw lifetime idents with r#)
 - #145218 ([Debuginfo] improve enum value formatting in LLDB for better readability)
 - #145380 (Add codegen-llvm regression tests)
 - #145573 (Add an experimental unsafe(force_target_feature) attribute.)
 - #145597 (resolve: Remove `ScopeSet::Late`)
 - #145641 (On E0277, point at type that doesn't implement bound)
 - #145669 (rustdoc-search: GUI tests check for `//` in URL)
 - #145695 (Introduce ProjectionElem::try_map.)
 - #145710 (Fix the ABI parameter inconsistency issue in debug.rs for LoongArch64)
 - #145726 (Experiment: Reborrow trait)
 - #145731 (Make raw pointers work in type-based search)
 - #145736 (triagebot: Update style team reviewers)
 - #145738 (Uplift rustc_mir_transform::coverage::counters::union_find to rustc_data_structures.)
 - #145743 (doc: fix some typos in comment)
 - #145745 (tests: Ignore basic-stepping.rs on LoongArch)

Failed merges:

 - #145670 (port `sanitize` attribute to the new parsing infrastructure)

r? `@ghost`
`@rustbot` modify labels: rollup
bors added a commit that referenced this pull request Aug 23, 2025
Rollup of 28 pull requests

Successful merges:

 - #132087 (Fix overly restrictive lifetime in `core::panic::Location::file` return type)
 - #137396 (Recover `param: Ty = EXPR`)
 - #137457 (Fix host code appearing in Wasm binaries)
 - #142185 (Convert moves of references to copies in ReferencePropagation)
 - #144648 (Implementation: `#[feature(nonpoison_rwlock)]`)
 - #144897 (print raw lifetime idents with r#)
 - #145218 ([Debuginfo] improve enum value formatting in LLDB for better readability)
 - #145380 (Add codegen-llvm regression tests)
 - #145573 (Add an experimental unsafe(force_target_feature) attribute.)
 - #145597 (resolve: Remove `ScopeSet::Late`)
 - #145633 (Fix some typos in LocalKey documentation)
 - #145641 (On E0277, point at type that doesn't implement bound)
 - #145669 (rustdoc-search: GUI tests check for `//` in URL)
 - #145695 (Introduce ProjectionElem::try_map.)
 - #145710 (Fix the ABI parameter inconsistency issue in debug.rs for LoongArch64)
 - #145726 (Experiment: Reborrow trait)
 - #145731 (Make raw pointers work in type-based search)
 - #145736 (triagebot: Update style team reviewers)
 - #145738 (Uplift rustc_mir_transform::coverage::counters::union_find to rustc_data_structures.)
 - #145742 (rustdoc js: Even more typechecking improvments )
 - #145743 (doc: fix some typos in comment)
 - #145745 (tests: Ignore basic-stepping.rs on LoongArch)
 - #145747 (Refactor lint buffering to avoid requiring a giant enum)
 - #145751 (fix(lexer): Allow '-' in the frontmatter infostring continue set)
 - #145761 (Add aarch64_be-unknown-hermit target)
 - #145762 (convert strings to symbols in attr diagnostics)
 - #145763 (Ship LLVM tools for the correct target when cross-compiling)
 - #145765 (Revert suggestions for missing methods in tuples)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 15eedde into rust-lang:master Aug 23, 2025
10 checks passed
@rustbot rustbot added this to the 1.91.0 milestone Aug 23, 2025
rust-timer added a commit that referenced this pull request Aug 23, 2025
Rollup merge of #145641 - estebank:point-at-type-in-e0277, r=davidtwco

On E0277, point at type that doesn't implement bound

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
   |
LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ;
   |                   ^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
   |
help: the trait `Foo` is not implemented for `Bar<T>`
  --> $DIR/issue-64855.rs:9:1
   |
LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ;
   | ^^^^^^^^^^^^^^^^^
```
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5 participants