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Improve diagnostics for unterminated nested block comment #95859

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merged 2 commits into from
Apr 16, 2022

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yue4u
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@yue4u yue4u commented Apr 9, 2022

close #95283

(This is my first time try to messing around with rust compiler and might get a lot of things wrong... 🙇 )

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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @petrochenkov (or someone else) soon.

Please see the contribution instructions for more information.

@rustbot rustbot added the T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. label Apr 9, 2022
@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Apr 9, 2022
@yue4u yue4u force-pushed the unterminated-nested-block-comment branch from 1dbebb3 to 5d1f333 Compare April 9, 2022 18:19
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petrochenkov commented Apr 12, 2022

The text of the comment should be available in fn cook_lexer_token, so I suggest searching for the nested /* in it only if we are actually going to report the "unterminated block (doc-)comment" error.
That would help to keep the lexer alone and to not do any extra work on good path.

Also all this logic searching for /* and adding the labels can be moved to a separate function and placed somewhere together with other error-reporting functions.

@petrochenkov petrochenkov 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 Apr 12, 2022
@yue4u yue4u force-pushed the unterminated-nested-block-comment branch 2 times, most recently from 66ff71a to 08baf85 Compare April 13, 2022 17:28
@yue4u yue4u force-pushed the unterminated-nested-block-comment branch from 08baf85 to 4a0f8d5 Compare April 13, 2022 18:22
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Hi @petrochenkov , thanks for the review. I updated this pr and does this look better?

compiler/rustc_parse/src/lexer/mod.rs Outdated Show resolved Hide resolved
@petrochenkov petrochenkov added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. 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-author Status: This is awaiting some action (such as code changes or more information) from the author. S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Apr 13, 2022
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Thanks!
@bors r+

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bors commented Apr 14, 2022

📌 Commit 1b7008d has been approved by petrochenkov

@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 Apr 14, 2022
Dylan-DPC added a commit to Dylan-DPC/rust that referenced this pull request Apr 14, 2022
…comment, r=petrochenkov

Improve diagnostics for unterminated nested block comment

close rust-lang#95283

(This is my first time try to messing around with rust compiler and might get a lot of things wrong... 🙇 )
Dylan-DPC added a commit to Dylan-DPC/rust that referenced this pull request Apr 14, 2022
…comment, r=petrochenkov

Improve diagnostics for unterminated nested block comment

close rust-lang#95283

(This is my first time try to messing around with rust compiler and might get a lot of things wrong... 🙇 )
Dylan-DPC added a commit to Dylan-DPC/rust that referenced this pull request Apr 14, 2022
…comment, r=petrochenkov

Improve diagnostics for unterminated nested block comment

close rust-lang#95283

(This is my first time try to messing around with rust compiler and might get a lot of things wrong... 🙇 )
Dylan-DPC added a commit to Dylan-DPC/rust that referenced this pull request Apr 15, 2022
…comment, r=petrochenkov

Improve diagnostics for unterminated nested block comment

close rust-lang#95283

(This is my first time try to messing around with rust compiler and might get a lot of things wrong... 🙇 )
Dylan-DPC added a commit to Dylan-DPC/rust that referenced this pull request Apr 15, 2022
…comment, r=petrochenkov

Improve diagnostics for unterminated nested block comment

close rust-lang#95283

(This is my first time try to messing around with rust compiler and might get a lot of things wrong... 🙇 )
Dylan-DPC added a commit to Dylan-DPC/rust that referenced this pull request Apr 16, 2022
…comment, r=petrochenkov

Improve diagnostics for unterminated nested block comment

close rust-lang#95283

(This is my first time try to messing around with rust compiler and might get a lot of things wrong... 🙇 )
bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 16, 2022
Rollup of 9 pull requests

Successful merges:

 - rust-lang#93969 (Only add codegen backend to dep info if -Zbinary-dep-depinfo is used)
 - rust-lang#94605 (Add missing links in platform support docs)
 - rust-lang#95372 (make unaligned_references lint deny-by-default)
 - rust-lang#95859 (Improve diagnostics for unterminated nested block comment)
 - rust-lang#95961 (implement SIMD gather/scatter via vector getelementptr)
 - rust-lang#96004 (Consider lifetimes when comparing types for equality in MIR validator)
 - rust-lang#96050 (Remove some now-dead code that was only relevant before deaggregation.)
 - rust-lang#96070 ([test] Add test cases for untested functions for BTreeMap)
 - rust-lang#96099 (MaybeUninit array cleanup)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 946d76e into rust-lang:master Apr 16, 2022
@rustbot rustbot added this to the 1.62.0 milestone Apr 16, 2022
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Better diagnostics for accidentally nested block comments
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