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rustdoc: resolve intra-doc links when checking HTML #93605

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merged 1 commit into from Feb 20, 2022
Merged

rustdoc: resolve intra-doc links when checking HTML #93605

merged 1 commit into from Feb 20, 2022

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notriddle
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@notriddle notriddle commented Feb 2, 2022 •
edited

Similar to #86451

CC #67799

Given this test case:

#![warn(rustdoc::invalid_html_tags)]
#![warn(rustdoc::broken_intra_doc_links)]

pub struct ExistentStruct<T>(T);

/// This [test][ExistentStruct<i32>] thing!
pub struct NoError;

This pull request silences the following, spurious warning:

warning: unclosed HTML tag `i32`
 --> test.rs:6:31
  |
6 | /// This [test][ExistentStruct<i32>] thing!
  |                               ^^^^^
  |
note: the lint level is defined here
 --> test.rs:1:9
  |
1 | #![warn(rustdoc::invalid_html_tags)]
  |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
help: try marking as source code
  |
6 | /// This [test][`ExistentStruct<i32>`] thing!
  |                 +                   +

warning: 1 warning emitted

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r? @GuillaumeGomez

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@rustbot rustbot added the T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. label Feb 2, 2022
@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Feb 2, 2022
@notriddle notriddle force-pushed the notriddle/rustdoc-html-tags-resolve branch from 634d879 to e0d4279 Compare February 2, 2022 23:47
@notriddle notriddle force-pushed the notriddle/rustdoc-html-tags-resolve branch from e0d4279 to 6821010 Compare February 12, 2022 00:07
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@notriddle notriddle force-pushed the notriddle/rustdoc-html-tags-resolve branch from 6821010 to 1d23c7c Compare February 12, 2022 00:49
@GuillaumeGomez
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Other than the nits, looks good to me. Let's hear from @camelid about this too!

r? @camelid

GuillaumeGomez
GuillaumeGomez approved these changes Feb 12, 2022
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Now it looks good to me! 👍

camelid
camelid reviewed Feb 15, 2022
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src/librustdoc/passes/html_tags.rs

let mut replacer = |broken_link: BrokenLink<'_>| {
if let Some(link) =
link_names.iter().find(|link| *link.original_text == *broken_link.reference)
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This seems like it might be kind of slow... maybe worth addressing in the future (not in this PR).

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We will run a perf check just to be sure the impact isn't too big, otherwise it'll have to be fixed in this PR (good catch!).

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camelid commented Feb 15, 2022

Am I correct in thinking that this change just improves lint warnings and does not add new syntax? Also, could you post what the errors looked like before this change? Thanks. Other than that, I have no objections. I haven't reviewed the code in detail though.

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camelid commented Feb 15, 2022

r? @GuillaumeGomez
@rustbot author

@rustbot rustbot removed the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Feb 15, 2022
@rustbot rustbot added the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Feb 15, 2022
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Am I correct in thinking that this change just improves lint warnings and does not add new syntax?

That’s the idea, yes. This way, when you use generics with intra-doc links, you don’t get spurious warnings about unclosed tags.

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Also, could you post what the errors looked like before this change?

@notriddle Can you show examples please?

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@GuillaumeGomez

Given the following test case:

#![warn(rustdoc::invalid_html_tags)]
#![warn(rustdoc::broken_intra_doc_links)]

pub struct ExistentStruct<T>(T);

/// This [test][ExistentStruct<i32>] thing!
pub struct NoError;

This pull request silences the following, spurious warning:

warning: unclosed HTML tag `i32`
 --> test.rs:6:31
  |
6 | /// This [test][ExistentStruct<i32>] thing!
  |                               ^^^^^
  |
note: the lint level is defined here
 --> test.rs:1:9
  |
1 | #![warn(rustdoc::invalid_html_tags)]
  |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
help: try marking as source code
  |
6 | /// This [test][`ExistentStruct<i32>`] thing!
  |                 +                   +

warning: 1 warning emitted

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Thanks for the explanations! Let's run a perf check and see if we need to work on perf before merging.

@bors try @rust-timer queue

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Awaiting bors try build completion.

@rustbot label: +S-waiting-on-perf

@rustbot rustbot added the S-waiting-on-perf Status: Waiting on a perf run to be completed. label Feb 15, 2022
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bors commented Feb 15, 2022

⌛ Trying commit 7fe679c29f8b64dc2a00a719989c5e3e747bf0b3 with merge 3a112530c438a994fa3c69af84a30ebf311b95c4...

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Finished benchmarking commit (3a112530c438a994fa3c69af84a30ebf311b95c4): comparison url.

Summary: This benchmark run did not return any relevant results. 10 results were found to be statistically significant but too small to be relevant.

If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf.

Benchmarking this pull request likely means that it is perf-sensitive, so we're automatically marking it as not fit for rolling up. While you can manually mark this PR as fit for rollup, we strongly recommend not doing so since this PR led to changes in compiler perf.

@bors rollup=never
@rustbot label: +S-waiting-on-review -S-waiting-on-perf -perf-regression

@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-perf Status: Waiting on a perf run to be completed. labels Feb 16, 2022
@camelid camelid removed the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Feb 16, 2022
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Perfect! Let's move forward then. Thanks!

@bors: r+

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bors commented Feb 16, 2022

📌 Commit 7fe679c29f8b64dc2a00a719989c5e3e747bf0b3 has been approved by GuillaumeGomez

@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 Feb 16, 2022
@notriddle notriddle force-pushed the notriddle/rustdoc-html-tags-resolve branch from 7fe679c to 1a6d41c Compare February 16, 2022 16:15
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@bors r=GuillaumeGomez

Squashed the nit-fix commit in.

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bors commented Feb 16, 2022

📌 Commit 1a6d41c has been approved by GuillaumeGomez

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bors commented Feb 17, 2022

⌛ Testing commit 1a6d41c with merge 8d51c58456739df3bc9036f185d720d0efb5ccba...

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A job failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

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bors commented Feb 17, 2022

💔 Test failed - checks-actions

@bors bors added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Feb 17, 2022
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@bors retry

@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 Feb 17, 2022
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bors commented Feb 20, 2022

⌛ Testing commit 1a6d41c with merge 6d7aa47...

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bors commented Feb 20, 2022

☀️ Test successful - checks-actions
Approved by: GuillaumeGomez
Pushing 6d7aa47 to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Feb 20, 2022
@bors bors merged commit 6d7aa47 into rust-lang:master Feb 20, 2022
@rustbot rustbot added this to the 1.61.0 milestone Feb 20, 2022
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Finished benchmarking commit (6d7aa47): comparison url.

Summary: This benchmark run did not return any relevant results.

If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf.

@rustbot label: -perf-regression

@notriddle notriddle deleted the notriddle/rustdoc-html-tags-resolve branch February 20, 2022 15:13
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