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Improve alloc::Layout coverage#146452

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Sep 13, 2025
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Improve alloc::Layout coverage#146452
bors merged 1 commit intorust-lang:masterfrom
ferrocene:pvdrz/improve-alloc-coverage

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@pvdrz pvdrz commented Sep 11, 2025 •
edited by tgross35
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This PR improves the core::alloc coverage by adding a new test to coretests that cover the Layout methods when they error.

Tracking issue: #55724

r? @workingjubilee

@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Sep 11, 2025
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workingjubilee commented Sep 11, 2025

r? libs

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Kivooeo
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Hi, could you please add some short comments explaining why these cases should fail? It’s not obvious to me, and it would help future readers who are also not experts in layouts and memory models

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@pvdrz pvdrz force-pushed the pvdrz/improve-alloc-coverage branch from be6081b to 93dd7b6 Compare September 12, 2025 01:54
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pvdrz commented Sep 12, 2025

@Kivooeo thanks for the review, I force pushed a new commit with comments that explain each assertion

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One suggestion here then LGTM.

It would be good to add doctests to these at some point, too, repeat_packed and extend_packed don't seem to have any examples or other test coverage. Not here, of course.

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@rustbot rustbot 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-review Status: Awaiting review from the assignee but also interested parties. labels Sep 12, 2025
@tgross35 tgross35 changed the title Improve core::alloc coverage Improve alloc::Layout coverage Sep 12, 2025
@pvdrz pvdrz force-pushed the pvdrz/improve-alloc-coverage branch from 93dd7b6 to 771db1f Compare September 12, 2025 15:32
@pvdrz pvdrz requested a review from tgross35 September 12, 2025 15:36
@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Sep 12, 2025
@pvdrz pvdrz force-pushed the pvdrz/improve-alloc-coverage branch from 771db1f to 18059a0 Compare September 12, 2025 15:50
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tgross35 commented Sep 12, 2025

Thanks!

@bors r+ rollup

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bors commented Sep 12, 2025

📌 Commit 18059a0 has been approved by tgross35

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 Sep 12, 2025
jdonszelmann added a commit to jdonszelmann/rust that referenced this pull request Sep 12, 2025
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Rollup merge of rust-lang#146452 - ferrocene:pvdrz/improve-alloc-cove…
9bdf03a 
…rage, r=tgross35

Improve `alloc::Layout` coverage

This PR improves the `core::alloc` coverage by adding a new test to `coretests` that cover the `Layout` methods when they error.

Tracking issue: rust-lang#55724
@jdonszelmann jdonszelmann mentioned this pull request Sep 12, 2025
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bors added a commit that referenced this pull request Sep 12, 2025
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Auto merge of #146492 - jdonszelmann:rollup-ea91wde, r=jdonszelmann
16288b8 
Rollup of 4 pull requests

Successful merges:

 - #146389 (Convert `no_std` and `no_core` to the new attribute infrastructure)
 - #146452 (Improve `alloc::Layout` coverage)
 - #146473 (Revert "Constify SystemTime methods")
 - #146477 (Improve `core::char` coverage)

r? `@ghost`
`@rustbot` modify labels: rollup
@jdonszelmann jdonszelmann mentioned this pull request Sep 13, 2025
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bors added a commit that referenced this pull request Sep 13, 2025
@bors
Auto merge of #146494 - jdonszelmann:rollup-0bbwwwf, r=jdonszelmann
9642c0e 
Rollup of 5 pull requests

Successful merges:

 - #146389 (Convert `no_std` and `no_core` to the new attribute infrastructure)
 - #146403 (sort array trait implementation suggestions correctly)
 - #146452 (Improve `alloc::Layout` coverage)
 - #146477 (Improve `core::char` coverage)
 - #146481 (Improve `core::hash` coverage)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit e4dbbbd into rust-lang:master Sep 13, 2025
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@rustbot rustbot added this to the 1.91.0 milestone Sep 13, 2025
rust-timer added a commit that referenced this pull request Sep 13, 2025
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Unrolled build for #146452
55da88b 
Rollup merge of #146452 - ferrocene:pvdrz/improve-alloc-coverage, r=tgross35

Improve `alloc::Layout` coverage

This PR improves the `core::alloc` coverage by adding a new test to `coretests` that cover the `Layout` methods when they error.

Tracking issue: #55724
@github-actions github-actions bot mentioned this pull request Sep 12, 2025
Merged
github-actions bot pushed a commit to model-checking/verify-rust-std that referenced this pull request Oct 9, 2025
@jdonszelmann
Rollup merge of rust-lang#146452 - ferrocene:pvdrz/improve-alloc-cove…
9061d53 
…rage, r=tgross35

Improve `alloc::Layout` coverage

This PR improves the `core::alloc` coverage by adding a new test to `coretests` that cover the `Layout` methods when they error.

Tracking issue: rust-lang#55724
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