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This PR fixes some confusing kw::Empty usage, fixing a crash test along the way.

r? @spastorino

@rustbot rustbot added A-compiletest Area: The compiletest test runner A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Mar 4, 2025
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Best reviewed one commit at a time.

@nnethercote nnethercote marked this pull request as ready for review March 4, 2025 05:35
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rustbot commented Mar 4, 2025

Some changes occurred to the CTFE / Miri interpreter

cc @rust-lang/miri

Some changes occurred in src/tools/clippy

cc @rust-lang/clippy

Some changes occurred in src/tools/compiletest

cc @jieyouxu

Some changes occurred to the CTFE machinery

cc @RalfJung, @oli-obk, @lcnr

Some changes occurred to MIR optimizations

cc @rust-lang/wg-mir-opt

if proc_res.status.success() || matches!(proc_res.status.code(), Some(1 | 0)) {
self.fatal(&format!(
"crashtest no longer crashes/triggers ICE, horray! Please give it a meaningful \
"crashtest no longer crashes/triggers ICE, hooray! Please give it a meaningful \
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I was like why did this PR get tagged as compiletest. 😆

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I've left a minor comment r=me doing whatever you feel is better there :).

| DefKind::AssocTy
| DefKind::TyParam
| DefKind::ExternCrate => DefPathData::TypeNs(name.unwrap()),
| DefKind::ExternCrate => DefPathData::TypeNs(Some(name.unwrap())),
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why not just name here? I guess you want to make the thing explode if is None?

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Yes. At the moment a None name only makes sense for DefKind::AssocTy, so I don't want to accept other combinations that aren't necessary.

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@bors r+

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bors commented Mar 5, 2025

📌 Commit 3ef8935 has been approved by spastorino

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 Mar 5, 2025
jhpratt added a commit to jhpratt/rust that referenced this pull request Mar 7, 2025
…storino

Reduce `kw::Empty` usage, part 1

This PR fixes some confusing `kw::Empty` usage, fixing a crash test along the way.

r? `@spastorino`
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Mar 7, 2025
…storino

Reduce `kw::Empty` usage, part 1

This PR fixes some confusing `kw::Empty` usage, fixing a crash test along the way.

r? ``@spastorino``
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jhpratt commented Mar 7, 2025

@bors r-

#138152 (comment)

@bors bors added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Mar 7, 2025
It's clearer than using `kw::Empty` to mean `None`.
Currently it relies on special treatment of `kw::Empty`, which is really
easy to get wrong. This commit makes the special case clearer in the
type system by using `Option`. It's a bit clumsy, but the synthetic name
handling itself is a bit clumsy; better to make it explicit than sneak
it in.

Fixes rust-lang#133426.
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I rebased.

@bors r=spastorino

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bors commented Mar 7, 2025

📌 Commit af92a33 has been approved by spastorino

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-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Mar 7, 2025
@bors bors merged commit 0defc4f into rust-lang:master Mar 7, 2025
6 checks passed
@rustbot rustbot added this to the 1.87.0 milestone Mar 7, 2025
@nnethercote nnethercote deleted the less-kw-Empty-1 branch March 9, 2025 21:10
@nnethercote nnethercote mentioned this pull request Apr 11, 2025
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A-compiletest Area: The compiletest test runner A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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6 participants