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Pretty-print parenthesis around binary in postfix match#124269

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scrabsha:sasha/fix-124206
Apr 29, 2024
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Pretty-print parenthesis around binary in postfix match#124269
bors merged 1 commit intorust-lang:masterfrom
scrabsha:sasha/fix-124206

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@scrabsha scrabsha commented Apr 22, 2024

Fixes #124206.

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r? @michaelwoerister

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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 Apr 22, 2024
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RossSmyth commented Apr 22, 2024

Could you please either give the test name something descriptive about what the test tests (idk pfix-match-paren or something) or make a new directory for postfix match within the pretty directory. Adding tests with issue numbers, while common, makes maintenance frustrating.

@scrabsha scrabsha force-pushed the sasha/fix-124206 branch 2 times, most recently from 027d6f0 to 6d6bc93 Compare April 22, 2024 18:29
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scrabsha commented Apr 22, 2024

Could you please either give the test name something descriptive about what the test tests (idk pfix-match-paren or something) or make a new directory for postfix match within the pretty directory. Adding tests with issue numbers, while common, makes maintenance frustrating.

I mkdired tests/pretty/postfix-match and moved every postfix-match-related test in it. Thanks for the suggestion!

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scrabsha commented Apr 25, 2024
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tests/pretty/postfix-match/precedence.pp
Comment on lines +16 to +27
(
{ 1 } + 1).match {
_ => {}
};
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This looks incorrect. Is it an issue in my code or in the pretty printer?

@dtolnay dtolnay assigned dtolnay and unassigned michaelwoerister Apr 28, 2024
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This is going to cause double parens to be put around cases like repro!(1 + Struct {}). ((1 + Struct {})).match { _ => {} }

In general print_expr_as_cond is not a correct thing to be using here. That is for syntactic positions where a { is ambiguous between being a part of the matched expression / if condition / while condition, vs being the body for the match/if/while. It isn't applicable to postfix match.

Postfix match needs to be printed like very other expression kind containing ., such as field accesses and method call expressions and postfix await.

@dtolnay dtolnay 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 28, 2024
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Pretty-print parenthesis around binary in postfix match
c8ff8a4 
Signed-off-by: Sasha Pourcelot <sasha.pourcelot@protonmail.com>
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scrabsha commented Apr 29, 2024

@dtolnay I modified my changes according to your comment and added your example in the test suite. Thanks!

@rustbot label -S-waiting-on-author +S-waiting-on-review

@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 Apr 29, 2024
@scrabsha scrabsha requested a review from dtolnay April 29, 2024 09:39
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Thanks!

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dtolnay commented Apr 29, 2024

@bors r+

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bors commented Apr 29, 2024

📌 Commit c8ff8a4 has been approved by dtolnay

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 29, 2024
@jieyouxu jieyouxu mentioned this pull request Apr 29, 2024
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bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 29, 2024
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Auto merge of rust-lang#124527 - jieyouxu:rollup-eslzncy, r=jieyouxu
a8a1d3a 
Rollup of 7 pull requests

Successful merges:

 - rust-lang#124269 (Pretty-print parenthesis around binary in postfix match)
 - rust-lang#124415 (Use probes more aggressively in new solver)
 - rust-lang#124475 (Remove direct dependencies on lazy_static, once_cell and byteorder)
 - rust-lang#124484 (Fix rust-lang#124478 - offset_of! returns a temporary)
 - rust-lang#124504 (Mark unions non-const-propagatable in `KnownPanicsLint` without calling layout)
 - rust-lang#124508 (coverage: Avoid hard-coded values when visiting logical ops)
 - rust-lang#124522 ([Refactor] Rename `Lint` and `LintGroup`'s `is_loaded` to `is_externally_loaded` )

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@bors bors merged commit f1c53da into rust-lang:master Apr 29, 2024
@rustbot rustbot added this to the 1.80.0 milestone Apr 29, 2024
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Apr 29, 2024
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Unrolled build for rust-lang#124269
e25491c 
Rollup merge of rust-lang#124269 - scrabsha:sasha/fix-124206, r=dtolnay

Pretty-print parenthesis around binary in postfix match

Fixes rust-lang#124206.
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AST pretty-printer produces invalid syntax for postfix match

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