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pass unused_extern_crates in librustdoc::doctest::make_test#110798

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pass unused_extern_crates in librustdoc::doctest::make_test#110798
bors merged 1 commit intorust-lang:masterfrom
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@onur-ozkan onur-ozkan commented Apr 25, 2023

blocker for #106621

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rustbot commented Apr 25, 2023

r? @GuillaumeGomez

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@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. labels Apr 25, 2023
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onur-ozkan commented Apr 25, 2023
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Noratrieb commented Apr 25, 2023

Can you add the reasoning behind allowing this in the comment? It doesn't explain why rustdoc should do this.

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onur-ozkan commented Apr 25, 2023

Can you add the reasoning behind allowing this in the comment? It doesn't explain why rustdoc should do this.

This is needed for using unused_extern_crates on compiler docs.

ref err: https://github.com/rust-lang/rust/actions/runs/4797403514/jobs/8534349146?pr=106621#step:26:3011

will extend the comment, I guess it's not clear enough.

@onur-ozkan onur-ozkan force-pushed the rustdoc-unused-extern-crates branch from 0e71a87 to ca118d4 Compare April 25, 2023 13:14
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Noratrieb commented Apr 25, 2023

It still doesn't include reasoning why rustdoc should pass this by default. Why is not allowing it a problem?

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onur-ozkan commented Apr 25, 2023

It still doesn't include reasoning why rustdoc should pass this by default. Why is not allowing it a problem?

We want to add rust_2018_idioms lint group to the doctests.

Because of this line https://github.com/rust-lang/rust/blob/ca118d4f3e1366dee7a51a3177a2e82d9007f0a8/src/librustdoc/doctest.rs#L686

adds lines like extern crate r#rustc_graphviz; to the compiler tree, we are getting errors on doctests by the rust_2018_idioms group. Since it's automagically added, couldn't find any better way to overcome it.

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Noratrieb commented Apr 25, 2023

"rustdoc implicitly inserts an extern crate item for the own crate which may be unused, so we need to allow the lint"
Something like that would make a good comment to add

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pass unused_extern_crates in librustdoc::doctest::make_test
f56b6d0 
Signed-off-by: ozkanonur <work@onurozkan.dev>
@onur-ozkan onur-ozkan force-pushed the rustdoc-unused-extern-crates branch from ca118d4 to f56b6d0 Compare April 25, 2023 14:21
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jyn514 commented Apr 26, 2023

@bors r+ rollup

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bors commented Apr 26, 2023

📌 Commit f56b6d0 has been approved by jyn514

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 Apr 26, 2023
@jyn514 jyn514 added A-edition-2018-lints A-doctests Area: Documentation tests, run by rustdoc labels Apr 26, 2023
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Apr 26, 2023
@matthiaskrgr
Rollup merge of rust-lang#110798 - ozkanonur:rustdoc-unused-extern-cr…
e54f933 
…ates, r=jyn514

pass `unused_extern_crates` in `librustdoc::doctest::make_test`

blocker for rust-lang#106621
@matthiaskrgr matthiaskrgr mentioned this pull request Apr 26, 2023
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@matthiaskrgr matthiaskrgr mentioned this pull request Apr 26, 2023
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bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 26, 2023
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Auto merge of rust-lang#110852 - matthiaskrgr:rollup-jz3eosr, r=matth…
1c42cb4 
…iaskrgr

Rollup of 10 pull requests

Successful merges:

 - rust-lang#108760 (Add lint to deny diagnostics composed of static strings)
 - rust-lang#109444 (Change tidy error message for TODOs)
 - rust-lang#110419 (Spelling library)
 - rust-lang#110550 (Suggest deref on comparison binop RHS even if type is not Copy)
 - rust-lang#110641 (Add new rustdoc book chapter to describe in-doc settings)
 - rust-lang#110798 (pass `unused_extern_crates` in `librustdoc::doctest::make_test`)
 - rust-lang#110819 (simplify TrustedLen impls)
 - rust-lang#110825 (diagnostics: add test case for already-solved issue)
 - rust-lang#110835 (Make some region folders a little stricter.)
 - rust-lang#110847 (rustdoc-json: Time serialization.)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 1d73549 into rust-lang:master Apr 26, 2023
@rustbot rustbot added this to the 1.71.0 milestone Apr 26, 2023
@onur-ozkan onur-ozkan deleted the rustdoc-unused-extern-crates branch April 26, 2023 21:43
@onur-ozkan onur-ozkan mentioned this pull request Apr 27, 2023
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@jieyouxu jieyouxu added the L-unused_extern_crates Lint: unused_extern_crates label May 30, 2025
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A-doctests Area: Documentation tests, run by rustdoc L-unused_extern_crates Lint: unused_extern_crates S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.

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