Commit graph

19 commits

Author SHA1 Message Date
Micha Reiser
9ae698fe30
Switch to Rust 2024 edition (#18129) 2025-05-16 13:25:28 +02:00
Micha Reiser
b63c2e126b
Upgrade Rust toolchain to 1.83 (#14677) 2024-11-29 12:05:05 +00:00
Micha Reiser
138e70bd5c
Upgrade to Rust 1.80 (#12586) 2024-07-30 19:18:08 +00:00
konsti
9a817a2922
Insert empty line between suite and alternative branch after def/class (#12294)
When there is a function or class definition at the end of a suite
followed by the beginning of an alternative block, we have to insert a
single empty line between them.

In the if-else-statement example below, we insert an empty line after
the `foo` in the if-block, but none after the else-block `foo`, since in
the latter case the enclosing suite already adds empty lines.

```python
if sys.version_info >= (3, 10):
    def foo():
        return "new"
else:
    def foo():
        return "old"
class Bar:
    pass
```

To do so, we track whether the current suite is the last one in the
current statement with a new option on the suite kind.

Fixes #12199

---------

Co-authored-by: Micha Reiser <micha@reiser.io>
2024-07-15 12:59:33 +02:00
Carl Meyer
c80b9a4a90
Reduce size of Stmt from 144 to 120 bytes (#11051)
## Summary

I happened to notice that we box `TypeParams` on `StmtClassDef` but not
on `StmtFunctionDef` and wondered why, since `StmtFunctionDef` is bigger
and sets the size of `Stmt`.

@charliermarsh found that at the time we started boxing type params on
classes, classes were the largest statement type (see #6275), but that's
no longer true.

So boxing type-params also on functions reduces the overall size of
`Stmt`.

## Test Plan

The `<=` size tests are a bit irritating (since their failure doesn't
tell you the actual size), but I manually confirmed that the size is
actually 120 now.
2024-04-19 17:02:17 -06:00
Micha Reiser
a6f32ddc5e
Ruff 2024.2 style (#9639) 2024-02-29 09:30:54 +01:00
Jane Lewis
0293908b71
Implement RUF028 to detect useless formatter suppression comments (#9899)
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Fixes #6611

## Summary

This lint rule spots comments that are _intended_ to suppress or enable
the formatter, but will be ignored by the Ruff formatter.

We borrow some functions the formatter uses for determining comment
placement / putting them in context within an AST.

The analysis function uses an AST visitor to visit each comment and
attach it to the AST. It then uses that context to check:
1. Is this comment in an expression?
2. Does this comment have bad placement? (e.g. a `# fmt: skip` above a
function instead of at the end of a line)
3. Is this comment redundant?
4. Does this comment actually suppress any code?
5. Does this comment have ambiguous placement? (e.g. a `# fmt: off`
above an `else:` block)

If any of these are true, a violation is thrown. The reported reason
depends on the order of the above check-list: in other words, a `# fmt:
skip` comment on its own line within a list expression will be reported
as being in an expression, since that reason takes priority.

The lint suggests removing the comment as an unsafe fix, regardless of
the reason.

## Test Plan

A snapshot test has been created.
2024-02-28 19:21:06 +00:00
Micha Reiser
ce14f4dea5
Range formatting API (#9635) 2024-01-31 11:13:37 +01:00
Micha Reiser
9cc257ee7d
Improve dummy_implementations preview style formatting (#9240) 2023-12-22 03:44:14 +00:00
Micha Reiser
3cc719bd74
Use named preview test functions (#9239) 2023-12-22 00:23:04 +00:00
konsti
317d3dd612
Add test and basic implementation for formatter preview mode (#8044)
**Summary** Prepare for the black preview style becoming the black
stable style at the end of the year.

This adds a new test file to compare stable and preview on some relevant
preview options in black, and makes `format_dev` understand the black
preview flag. I've added poetry as a project that uses preview.

I've implemented one specific deviation (collapsing of stub
implementation in non-stub files) which showed up in poetry for testing.
This also improves poetry compatibility from 0.99891 to 0.99919.

Fixes #7440

New compatibility stats:
| project | similarity index | total files | changed files |

|----------------|------------------:|------------------:|------------------:|
| cpython | 0.75803 | 1799 | 1647 |
| django | 0.99983 | 2772 | 35 |
| home-assistant | 0.99953 | 10596 | 189 |
| poetry | 0.99919 | 317 | 12 |
| transformers | 0.99963 | 2657 | 332 |
| twine | 1.00000 | 33 | 0 |
| typeshed | 0.99978 | 3669 | 20 |
| warehouse | 0.99969 | 654 | 15 |
| zulip | 0.99970 | 1459 | 22 |
2023-10-26 15:33:26 +00:00
Charlie Marsh
d685107638
Move {AnyNodeRef, AstNode} to ruff_python_ast crate root (#8030)
This is a do-over of https://github.com/astral-sh/ruff/pull/8011, which
I accidentally merged into a non-`main` branch. Sorry!
2023-10-18 00:01:18 +00:00
Dhruv Manilawala
a1509dfc7c
Use correct start location for class/function clause header (#7802)
## Summary

This PR fixes the bug where the formatter would panic if a class/function with
decorators had a suppression comment.

The fix is to use to correct start location to find the `async`/`def`/`class`
keyword when decorators are present which is the end of the last
decorator.

## Test Plan

Add test cases for the fix and update the snapshots.
2023-10-04 07:55:01 +00:00
Micha Reiser
c05e4628b1
Introduce Token element (#7048) 2023-09-02 10:05:47 +02:00
Charlie Marsh
fc89976c24
Move Ranged into ruff_text_size (#6919)
## Summary

The motivation here is that this enables us to implement `Ranged` in
crates that don't depend on `ruff_python_ast`.

Largely a mechanical refactor with a lot of regex, Clippy help, and
manual fixups.

## Test Plan

`cargo test`
2023-08-27 14:12:51 -04:00
Charlie Marsh
edb9b0c62a
Use the formatter prelude in more files (#6882)
Removes a bunch of imports that are made redundant by the prelude.
2023-08-25 16:51:07 -04:00
Micha Reiser
17a26e6ff3
Fix fmt:skip for function with return type (#6733) 2023-08-21 17:45:23 +02:00
Tom Kuson
2a8d24dd4b
Format function and class definitions into a single line if its body is an ellipsis (#6592) 2023-08-21 09:02:23 +02:00
Micha Reiser
fa7442da2f
Support fmt: skip on compound statements (#6593) 2023-08-17 06:05:41 +00:00