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Update E0517 message to reflect RFC 2195. #128795

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merged 1 commit into from
Aug 8, 2024

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zachs18
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@zachs18 zachs18 commented Aug 7, 2024

E0517 occurs when a #[repr(..)] attribute is placed on an unsupported item. Currently, the explanation of the error implies that #[repr(u*/i*)] cannot be placed on fieldful enums, which is no longer the case since RFC 2195 was stabilized, which allows placing #[repr(u*/i*)] and/or #[repr(C)] on fieldful enums to produce a defined layout.

This PR doesn't (currently) add a description of the semantics of placing #[repr(u*/i*)] on a fieldful enum to the error explanation, it just removes the claims/implications that it is not allowed.

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rustbot commented Aug 7, 2024

r? @wesleywiser

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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. labels Aug 7, 2024
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Thanks, the modified explanation makes sense to me. Just a suggestion for adding a link to the actual RFC.

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jieyouxu commented Aug 8, 2024

r? jieyouxu

@rustbot rustbot assigned jieyouxu and unassigned wesleywiser Aug 8, 2024
@jieyouxu jieyouxu 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 Aug 8, 2024
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Just a smol typo

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jieyouxu commented Aug 8, 2024

Can you also squash the commits into one after fixing the typo? Thanks

@zachs18 zachs18 force-pushed the e0517-update-for-rfc-2195 branch from f02ae6f to 7869400 Compare August 8, 2024 04:12
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Thanks!

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jieyouxu commented Aug 8, 2024

@bors r+ rollup

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bors commented Aug 8, 2024

📌 Commit 7869400 has been approved by jieyouxu

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 Aug 8, 2024
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Aug 8, 2024
… r=jieyouxu

Update E0517 message to reflect RFC 2195.

E0517 occurs when a `#[repr(..)]` attribute is placed on an unsupported item. Currently, the explanation of the error implies that `#[repr(u*/i*)]` cannot be placed on fieldful enums, which is no longer the case since [RFC 2195](rust-lang/rfcs#2195) was [stabilized](rust-lang#60553), which allows placing `#[repr(u*/i*)]` and/or `#[repr(C)]` on fieldful enums to produce a defined layout.

This PR doesn't (currently) add a description of the semantics of placing `#[repr(u*/i*)]` on a fieldful enum to the error explanation, it just removes the claims/implications that it is not allowed.
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 8, 2024
…iaskrgr

Rollup of 2 pull requests

Successful merges:

 - rust-lang#128465 (Some `const { }` asserts for rust-lang#128200 )
 - rust-lang#128795 (Update E0517 message to reflect RFC 2195.)

r? `@ghost`
`@rustbot` modify labels: rollup
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Aug 8, 2024
… r=jieyouxu

Update E0517 message to reflect RFC 2195.

E0517 occurs when a `#[repr(..)]` attribute is placed on an unsupported item. Currently, the explanation of the error implies that `#[repr(u*/i*)]` cannot be placed on fieldful enums, which is no longer the case since [RFC 2195](rust-lang/rfcs#2195) was [stabilized](rust-lang#60553), which allows placing `#[repr(u*/i*)]` and/or `#[repr(C)]` on fieldful enums to produce a defined layout.

This PR doesn't (currently) add a description of the semantics of placing `#[repr(u*/i*)]` on a fieldful enum to the error explanation, it just removes the claims/implications that it is not allowed.
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 8, 2024
…iaskrgr

Rollup of 3 pull requests

Successful merges:

 - rust-lang#128795 (Update E0517 message to reflect RFC 2195.)
 - rust-lang#128804 (run-make: enable msvc for redundant-libs)
 - rust-lang#128807 (run-make: run fmt-write-bloat on Windows)

r? `@ghost`
`@rustbot` modify labels: rollup
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Aug 8, 2024
… r=jieyouxu

Update E0517 message to reflect RFC 2195.

E0517 occurs when a `#[repr(..)]` attribute is placed on an unsupported item. Currently, the explanation of the error implies that `#[repr(u*/i*)]` cannot be placed on fieldful enums, which is no longer the case since [RFC 2195](rust-lang/rfcs#2195) was [stabilized](rust-lang#60553), which allows placing `#[repr(u*/i*)]` and/or `#[repr(C)]` on fieldful enums to produce a defined layout.

This PR doesn't (currently) add a description of the semantics of placing `#[repr(u*/i*)]` on a fieldful enum to the error explanation, it just removes the claims/implications that it is not allowed.
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 8, 2024
…iaskrgr

Rollup of 7 pull requests

Successful merges:

 - rust-lang#128306 (Update NonNull::align_offset quarantees)
 - rust-lang#128612 (Make `validate_mir` ensure the final MIR for all bodies)
 - rust-lang#128648 (Add regression test)
 - rust-lang#128791 (Don't implement `AsyncFn` for `FnDef`/`FnPtr` that wouldnt implement `Fn`)
 - rust-lang#128795 (Update E0517 message to reflect RFC 2195.)
 - rust-lang#128825 (rm `declared_features` field in resolver)
 - rust-lang#128826 (Only suggest `#[allow]` for `--warn` and `--deny` lint level flags)

r? `@ghost`
`@rustbot` modify labels: rollup
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 8, 2024
…iaskrgr

Rollup of 7 pull requests

Successful merges:

 - rust-lang#128306 (Update NonNull::align_offset quarantees)
 - rust-lang#128612 (Make `validate_mir` ensure the final MIR for all bodies)
 - rust-lang#128648 (Add regression test)
 - rust-lang#128749 (Mark `{f32,f64}::{next_up,next_down,midpoint}` inline)
 - rust-lang#128795 (Update E0517 message to reflect RFC 2195.)
 - rust-lang#128825 (rm `declared_features` field in resolver)
 - rust-lang#128826 (Only suggest `#[allow]` for `--warn` and `--deny` lint level flags)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 25fc71b into rust-lang:master Aug 8, 2024
6 checks passed
@rustbot rustbot added this to the 1.82.0 milestone Aug 8, 2024
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Aug 8, 2024
Rollup merge of rust-lang#128795 - zachs18:e0517-update-for-rfc-2195, r=jieyouxu

Update E0517 message to reflect RFC 2195.

E0517 occurs when a `#[repr(..)]` attribute is placed on an unsupported item. Currently, the explanation of the error implies that `#[repr(u*/i*)]` cannot be placed on fieldful enums, which is no longer the case since [RFC 2195](rust-lang/rfcs#2195) was [stabilized](rust-lang#60553), which allows placing `#[repr(u*/i*)]` and/or `#[repr(C)]` on fieldful enums to produce a defined layout.

This PR doesn't (currently) add a description of the semantics of placing `#[repr(u*/i*)]` on a fieldful enum to the error explanation, it just removes the claims/implications that it is not allowed.
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