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Replace regions in const canonical vars' types with 'static in next-solver canonicalizer #123170

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merged 2 commits into from
Mar 30, 2024

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@compiler-errors compiler-errors commented Mar 28, 2024

We shouldn't ever have non-static regions in consts on stable (or really any regions at all, lol).

The test I committed is less minimal than, e.g., #123155 -- however, I believe that it actually portrays the underlying issue here a bit better than that one.

In the linked issue, we end up emitting a normalizes-to predicate for a const placeholder because we don't actually unify false and "". In the test I committed, we emit a normalizes-to predicate as a part of actually solving a negative coherence goal.

Fixes #123155
Fixes #118783

r? lcnr

@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. labels Mar 28, 2024
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lcnr commented Mar 30, 2024

@bors r+ rollup

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bors commented Mar 30, 2024

📌 Commit 6439c7f has been approved by lcnr

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 30, 2024
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Mar 30, 2024
Replace regions in const canonical vars' types with `'static` in next-solver canonicalizer

We shouldn't ever have non-static regions in consts on stable (or really any regions at all, lol).

The test I committed is less minimal than, e.g., rust-lang#123155 -- however, I believe that it actually portrays the underlying issue here a bit better than that one.

In the linked issue, we end up emitting a normalizes-to predicate for a const placeholder because we don't actually unify `false` and `""`. In the test I committed, we emit a normalizes-to predicate as a part of actually solving a negative coherence goal.

Fixes rust-lang#123155
Fixes rust-lang#118783

r? lcnr
bors added a commit to rust-lang-ci/rust that referenced this pull request Mar 30, 2024
…iaskrgr

Rollup of 5 pull requests

Successful merges:

 - rust-lang#121573 (unix_sigpipe: Add test for SIGPIPE disposition in child processes)
 - rust-lang#123170 (Replace regions in const canonical vars' types with `'static` in next-solver canonicalizer)
 - rust-lang#123200 (KCFI: Require -C panic=abort)
 - rust-lang#123201 (Improve wording in std::any explanation)
 - rust-lang#123224 (compiletest: print reason for failing to read tests)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 93f1443 into rust-lang:master Mar 30, 2024
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@rustbot rustbot added this to the 1.79.0 milestone Mar 30, 2024
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Mar 30, 2024
Rollup merge of rust-lang#123170 - compiler-errors:const-statics, r=lcnr

Replace regions in const canonical vars' types with `'static` in next-solver canonicalizer

We shouldn't ever have non-static regions in consts on stable (or really any regions at all, lol).

The test I committed is less minimal than, e.g., rust-lang#123155 -- however, I believe that it actually portrays the underlying issue here a bit better than that one.

In the linked issue, we end up emitting a normalizes-to predicate for a const placeholder because we don't actually unify `false` and `""`. In the test I committed, we emit a normalizes-to predicate as a part of actually solving a negative coherence goal.

Fixes rust-lang#123155
Fixes rust-lang#118783

r? lcnr
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