## Summary
Adds a simple progress bar for the `ty check` CLI command. The style is
taken from uv, and like uv the bar is always shown - for smaller
projects it is fast enough that it isn't noticeable. We could
alternatively hide it completely based on some heuristic for the number
of files, or only show it after some amount of time.
I also disabled it when `--watch` is passed, cancelling inflight checks
was leading to zombie progress bars. I think we can fix this by using
[`MultiProgress`](https://docs.rs/indicatif/latest/indicatif/struct.MultiProgress.html)
and managing all the bars globally, but I left that out for now.
Resolves https://github.com/astral-sh/ty/issues/98.
## Summary
This PR is a first step toward integration of the new `Diagnostic` type
into ruff. There are two main changes:
- A new `UnifiedFile` enum wrapping `File` for red-knot and a
`SourceFile` for ruff
- ruff's `Message::SyntaxError` variant is now a `Diagnostic` instead of
a `SyntaxErrorMessage`
The second of these changes was mostly just a proof of concept for the
first, and it went pretty smoothly. Converting `DiagnosticMessage`s will
be most of the work in replacing `Message` entirely.
## Test Plan
Existing tests, which show no changes.
---------
Co-authored-by: Carl Meyer <carl@astral.sh>
Co-authored-by: Micha Reiser <micha@reiser.io>
## Summary
Resolves#15502.
`ty generate-shell-completion` now works in a similar manner to `ruff
generate-shell-completion`.
## Test Plan
Manually:
<details>
```shell
$ cargo run --package ty generate-shell-completion nushell
module completions {
# An extremely fast Python type checker.
export extern ty [
--help(-h) # Print help
--version(-V) # Print version
]
# ...
}
export use completions *
```
</details>
When attempting to determine whether `import foo.bar.baz` is a known
first-party import relative to [user-provided source
paths](https://docs.astral.sh/ruff/settings/#src), when `preview` is
enabled we now check that `SRC/foo/bar/baz` is a directory or
`SRC/foo/bar/baz.py` or `SRC/foo/bar/baz.pyi` exist.
Previously, we just checked the analogous thing for `SRC/foo`, but this
can be misleading in situations with disjoint namespace packages that
share a common base name (e.g. we may be working inside the namespace
package `foo.buzz` and importing `foo.bar` from elsewhere).
Supersedes #12987Closes#12984
We weren't really using `chrono` for anything other than getting the
current time and formatting it for logs.
Unfortunately, this doesn't quite get us to a point where `chrono`
can be removed. From what I can tell, we're still bringing it via
[`tracing-subscriber`](https://docs.rs/tracing-subscriber/latest/tracing_subscriber/)
and
[`quick-junit`](https://docs.rs/quick-junit/latest/quick_junit/).
`tracing-subscriber` does have an
[issue open about Jiff](https://github.com/tokio-rs/tracing/discussions/3128),
but there's no movement on it.
Normally I'd suggest holding off on this since it doesn't get us all of
the way there and it would be better to avoid bringing in two datetime
libraries, but we are, it appears, already there. In particular,
`env_logger` brings in Jiff. So this PR doesn't really make anything
worse, but it does bring us closer to an all-Jiff world.
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [bstr](https://redirect.github.com/BurntSushi/bstr) |
workspace.dependencies | minor | `1.11.3` -> `1.12.0` |
---
> [!WARNING]
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---
### Release Notes
<details>
<summary>BurntSushi/bstr (bstr)</summary>
###
[`v1.12.0`](https://redirect.github.com/BurntSushi/bstr/compare/1.11.3...1.12.0)
[Compare
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</details>
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This causes spurious query cycles.
This PR also includes an update to Salsa, which gives us db events on
cycle iteration, so we can write tests asserting the absence of a cycle.
## Summary
Update Salsa to pull in https://github.com/salsa-rs/salsa/pull/788 which
fixes the, by now, famous *access to field whilst the value is being
initialized*.
This PR also re-enables all tests that previously triggered the panic.
## Test Plan
`cargo test`
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [clap](https://redirect.github.com/clap-rs/clap) |
workspace.dependencies | patch | `4.5.34` -> `4.5.35` |
---
> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.
---
### Release Notes
<details>
<summary>clap-rs/clap (clap)</summary>
###
[`v4.5.35`](https://redirect.github.com/clap-rs/clap/blob/HEAD/CHANGELOG.md#4535---2025-04-01)
[Compare
Source](https://redirect.github.com/clap-rs/clap/compare/v4.5.34...v4.5.35)
##### Fixes
- *(help)* Align positionals and flags when put in the same
`help_heading`
- *(help)* Don't leave space for shorts if there are none
</details>
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## Summary
Use more local `expect(dead_code)` suppressions instead of a global
`allow(dead_code)` in `lib.rs`.
Remove some methods that are either easy to add later, are less likely
to be needed for red knot, or it's unclear if we'd add it the same way
as in ruff.
## Summary
This is a follow up to the goto type definition PR. Specifically, that
we want to avoid exposing too many semantic model internals publicly.
I want to get some feedback on the approach taken. I think it goes into
the right direction but I'm not super happy with it.
The basic idea is that we add a `Type::definition` method which does the
"goto type definition". The parts that I think make it awkward:
* We can't directly return `Definition` because we don't create a
`Definition` for modules (but we could?). Although I think it makes
sense to possibly have a more public wrapper type anyway?
* It doesn't handle unions and intersections. Mainly because not all
elements in an intersection may have a definition and we only want to
show a navigation target for intersections if there's only a single
positive element (besides maybe `Unknown`).
An alternative design or an addition to this design is to introduce a
`SemanticAnalysis(Db)` struct that has methods like
`type_definition(&self, type)` which explicitly exposes the methods we
want. I don't feel comfortable design this API yet because it's unclear
how fine granular it has to be (and if it is very fine granular,
directly using `Type` might be better after all)
## Test Plan
`cargo test`
Update to latest Salsa main branch, so as to get a baseline for
measuring the perf effect of https://github.com/salsa-rs/salsa/pull/786
on red-knot in isolation from other recent changes in Salsa main branch.
## Summary
This PR adds Goto type definition to the playground, using the same
infrastructure as the LSP.
The main *challenge* with implementing this feature was that the editor
can now participate in which tab is open.
## Known limitations
The same as for the LSP. Most notably, navigating to types defined in
typeshed isn't supported.
## Test Plan
https://github.com/user-attachments/assets/22dad7c8-7ac7-463f-b066-5d5b2c45d1fe
## Summary
Implement basic *Goto type definition* support for Red Knot's LSP.
This PR also builds the foundation for other LSP operations. E.g., Goto
definition, hover, etc., should be able to reuse some, if not most,
logic introduced in this PR.
The basic steps of resolving the type definitions are:
1. Find the closest token for the cursor offset. This is a bit more
subtle than I first anticipated because the cursor could be positioned
right between the callee and the `(` in `call(test)`, in which case we
want to resolve the type for `call`.
2. Find the node with the minimal range that fully encloses the token
found in 1. I somewhat suspect that 1 and 2 could be done at the same
time but it complicated things because we also need to compute the spine
(ancestor chain) for the node and there's no guarantee that the found
nodes have the same ancestors
3. Reduce the node found in 2. to a node that is a valid goto target.
This may require traversing upwards to e.g. find the closest expression.
4. Resolve the type for the goto target
5. Resolve the location for the type, return it to the LSP
## Design decisions
The current implementation navigates to the inferred type. I think this
is what we want because it means that it correctly accounts for
narrowing (in which case we want to go to the narrowed type because
that's the value's type at the given position). However, it does have
the downside that Goto type definition doesn't work whenever we infer `T
& Unknown` because intersection types aren't supported. I'm not sure
what to do about this specific case, other than maybe ignoring `Unkown`
in Goto type definition if the type is an intersection?
## Known limitations
* Types defined in the vendored typeshed aren't supported because the
client can't open files from the red knot binary (we can either
implement our own file protocol and handler OR extract the typeshed
files and point there). See
https://github.com/astral-sh/ruff/issues/17041
* Red Knot only exposes an API to get types for expressions and
definitions. However, there are many other nodes with identifiers that
can have a type (e.g. go to type of a globals statement, match patterns,
...). We can add support for those in separate PRs (after we figure out
how to query the types from the semantic model). See
https://github.com/astral-sh/ruff/issues/17113
* We should have a higher-level API for the LSP that doesn't directly
call semantic queries. I intentionally decided not to design that API
just yet.
## Test plan
https://github.com/user-attachments/assets/fa077297-a42d-4ec8-b71f-90c0802b4edb
Goto type definition on a union
<img width="1215" alt="Screenshot 2025-04-01 at 13 02 55"
src="https://github.com/user-attachments/assets/689cabcc-4a86-4a18-b14a-c56f56868085"
/>
Note: I recorded this using a custom typeshed path so that navigating to
builtins works.
This PR contains the scaffolding for a new control flow graph
implementation, along with its application to the `unreachable` rule. At
the moment, the implementation is a maximal over-approximation: no
control flow is modeled and all statements are counted as reachable.
With each additional statement type we support, this approximation will
improve.
So this PR just contains:
- A `ControlFlowGraph` struct and builder
- Support for printing the flow graph as a Mermaid graph
- Snapshot tests for the actual graphs
- (a very bad!) reimplementation of `unreachable` using the new structs
- Snapshot tests for `unreachable`
# Instructions for Viewing Mermaid snapshots
Unfortunately I don't know how to convince GitHub to render the Mermaid
graphs in the snapshots. However, you can view these locally in VSCode
if you install an extension that supports Mermaid graphs in Markdown,
and then add this to your `settings.json`:
```json
"files.associations": {
"*.md.snap": "markdown",
}
```
## Summary
This PR adds a new but so far empty and unused `red_knot_ide` crate.
This new crate's purpose is to implement IDE-specific functionality,
such as go to definition, hover, completion, etc., which are used by
both the LSP and the playground.
The crate itself doesn't depend on `lsptypes`. The idea is that the
facade crates (e.g., `red_knot_server`) convert external to internal
types.
Not only allows this to share the logic between server and playground,
it also ensures that the core functionality is easier to test because it
can be tested without needing a full LSP.
## Test Plan
`cargo build`
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [clap](https://redirect.github.com/clap-rs/clap) |
workspace.dependencies | patch | `4.5.32` -> `4.5.34` |
---
> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.
---
### Release Notes
<details>
<summary>clap-rs/clap (clap)</summary>
###
[`v4.5.34`](https://redirect.github.com/clap-rs/clap/blob/HEAD/CHANGELOG.md#4534---2025-03-27)
[Compare
Source](https://redirect.github.com/clap-rs/clap/compare/v4.5.33...v4.5.34)
##### Fixes
- *(help)* Don't add extra blank lines with `flatten_help(true)` and
subcommands without arguments
###
[`v4.5.33`](https://redirect.github.com/clap-rs/clap/blob/HEAD/CHANGELOG.md#4533---2025-03-26)
[Compare
Source](https://redirect.github.com/clap-rs/clap/compare/v4.5.32...v4.5.33)
##### Fixes
- *(error)* When showing the usage of a suggestion for an unknown
argument, don't show the group
</details>
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [tempfile](https://stebalien.com/projects/tempfile-rs/)
([source](https://redirect.github.com/Stebalien/tempfile)) |
workspace.dependencies | patch | `3.19.0` -> `3.19.1` |
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<details>
<summary>Stebalien/tempfile (tempfile)</summary>
###
[`v3.19.1`](https://redirect.github.com/Stebalien/tempfile/blob/HEAD/CHANGELOG.md#3191)
[Compare
Source](https://redirect.github.com/Stebalien/tempfile/compare/v3.19.0...v3.19.1)
- Don't unlink temporary files immediately on Windows (fixes
[#​339](https://redirect.github.com/Stebalien/tempfile/issues/339)).
Unfortunately, this seemed to corrupt the file object (possibly a
Windows kernel bug) in rare cases and isn't strictly speaking necessary.
</details>
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [mimalloc](https://redirect.github.com/purpleprotocol/mimalloc_rust) |
workspace.dependencies | patch | `0.1.43` -> `0.1.44` |
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<details>
<summary>purpleprotocol/mimalloc_rust (mimalloc)</summary>
###
[`v0.1.44`](https://redirect.github.com/purpleprotocol/mimalloc_rust/releases/tag/v0.1.44):
Version 0.1.44
[Compare
Source](https://redirect.github.com/purpleprotocol/mimalloc_rust/compare/v0.1.43...v0.1.44)
##### Changes
- Mimalloc v2.2.2
</details>
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## Summary
This PR adds a playground for Red Knot
[Screencast from 2024-08-14
10-33-54.webm](https://github.com/user-attachments/assets/ae81d85f-74a3-4ba6-bb61-4a871b622f05)
Sharing does work 😆 I just forgot to start wrangler.
It supports:
* Multiple files
* Showing the AST
* Showing the tokens
* Sharing
* Persistence to local storage
Future extensions:
* Configuration support: The `pyproject.toml` would *just* be another
file.
* Showing type information on hover
## Blockers
~~Salsa uses `catch_unwind` to break cycles, which Red Knot uses
extensively when inferring types in the standard library.
However, WASM (at least `wasm32-unknown-unknown`) doesn't support
`catch_unwind` today, so the playground always crashes when the type
inference encounters a cycle.~~
~~I created a discussion in the [salsa
zulip](https://salsa.zulipchat.com/#narrow/stream/333573-salsa-3.2E0/topic/WASM.20support)
to see if it would be possible to **not** use catch unwind to break
cycles.~~
~~[Rust tracking issue for WASM catch unwind
support](https://github.com/rust-lang/rust/issues/118168)~~
~~I tried to build the WASM with the nightly compiler option but ran
into problems because wasm-bindgen doesn't support WASM-exceptions. We
could try to write the binding code by hand.~~
~~Another alternative is to use `wasm32-unknown-emscripten` but it's
rather painful to build~~
## Summary
Another salsa upgrade.
The main motivation is to stay on a recent salsa version because there
are still a lot of breaking changes happening.
The most significant changes in this update:
* Salsa no longer derives `Debug` by default. It now requires
`interned(debug)` (or similar)
* This version ships the foundation for garbage collecting interned
values. However, this comes at the cost that queries now track which
interned values they created (or read). The micro benchmarks in the
salsa repo showed a significant perf regression. Will see if this also
visible in our benchmarks.
## Test Plan
`cargo test`
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [clap](https://redirect.github.com/clap-rs/clap) |
workspace.dependencies | patch | `4.5.31` -> `4.5.32` |
---
> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.
---
### Release Notes
<details>
<summary>clap-rs/clap (clap)</summary>
###
[`v4.5.32`](https://redirect.github.com/clap-rs/clap/blob/HEAD/CHANGELOG.md#4532---2025-03-10)
[Compare
Source](https://redirect.github.com/clap-rs/clap/compare/v4.5.31...v4.5.32)
##### Features
- Add `Error::remove`
##### Documentation
- *(cookbook)* Switch from `humantime` to `jiff`
- *(tutorial)* Better cover required vs optional
##### Internal
- Update `pulldown-cmark`
</details>
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [quote](https://redirect.github.com/dtolnay/quote) |
workspace.dependencies | patch | `1.0.39` -> `1.0.40` |
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<summary>dtolnay/quote (quote)</summary>
###
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[Compare
Source](https://redirect.github.com/dtolnay/quote/compare/1.0.39...1.0.40)
- Optimize construction of lifetime tokens
([#​293](https://redirect.github.com/dtolnay/quote/issues/293),
thanks [@​aatifsyed](https://redirect.github.com/aatifsyed))
</details>
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [ordermap](https://redirect.github.com/indexmap-rs/ordermap) |
workspace.dependencies | patch | `0.5.5` -> `0.5.6` |
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<summary>indexmap-rs/ordermap (ordermap)</summary>
###
[`v0.5.6`](https://redirect.github.com/indexmap-rs/ordermap/blob/HEAD/RELEASES.md#056-2025-03-10)
[Compare
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- Added `ordermap_with_default!` and `orderset_with_default!` to be used
with
alternative hashers, especially when using the crate without `std`.
- Updated the `indexmap` dependency to version 2.8.0.
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [env_logger](https://redirect.github.com/rust-cli/env_logger) |
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- Replaced `humantime` with `jiff`
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [indexmap](https://redirect.github.com/indexmap-rs/indexmap) |
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- Added `indexmap_with_default!` and `indexset_with_default!` to be used
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- Implemented `PartialEq` between each `Slice` and `[]`/arrays.
- Removed the internal `rustc-rayon` feature and dependency.
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## Summary
Follow-up release for Ruff v0.10 that now includes the following two
changes that we intended to ship but slipped:
* Changes to how the Python version is inferred when a `target-version`
is not specified (#16319)
* `blanket-noqa` (`PGH004`): Also detect blanked file-level noqa
comments (and not just line level comments).
## Test plan
I verified that the binary built on this branch respects the
`requires-python` setting
([logs](https://www.diffchecker.com/qyJWYi6W/), left: v0.10, right:
v0.11)
Pulls in the latest Salsa main branch, which supports fixpoint
iteration, and uses it to handle all query cycles.
With this, we no longer need to skip any corpus files to avoid panics.
Latest perf results show a 6% incremental and 1% cold-check regression.
This is not a "no cycles" regression, as tomllib and typeshed do trigger
some definition cycles (previously handled by our old
`infer_definition_types` fallback to `Unknown`). We don't currently have
a benchmark we can use to measure the pure no-cycles regression, though
I expect there would still be some regression; the fixpoint iteration
feature in Salsa does add some overhead even for non-cyclic queries.
I think this regression is within the reasonable range for this feature.
We can do further optimization work later, but I don't think it's the
top priority right now. So going ahead and acknowledging the regression
on CodSpeed.
Mypy primer is happy, so this doesn't regress anything on our
currently-checked projects. I expect it probably unlocks adding a number
of new projects to our ecosystem check that previously would have
panicked.
Fixes#13792Fixes#14672
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| Package | Type | Update | Change |
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- Add `Visit::visit_token_stream`, `VisitMut::visit_token_stream_mut`,
`Fold::fold_token_stream` for processing TokenStream during syntax tree
traversals
([#​1852](https://redirect.github.com/dtolnay/syn/issues/1852))
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [thiserror](https://redirect.github.com/dtolnay/thiserror) |
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- Prevent elidable_lifetime_names pedantic clippy lint in generated impl
([#​413](https://redirect.github.com/dtolnay/thiserror/issues/413))
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [quote](https://redirect.github.com/dtolnay/quote) |
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [serde](https://serde.rs)
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- Prevent `absolute_paths` Clippy restriction being triggered inside
macro-generated code
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This PR contains the following updates:
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| [proc-macro2](https://redirect.github.com/dtolnay/proc-macro2) |
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| Package | Type | Update | Change |
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## Summary
This PR introduces a new mdtest option `system` that can either be
`in-memory` or `os`
where `in-memory` is the default.
The motivation for supporting `os` is so that we can write OS/system
specific tests
with mdtests. Specifically, I want to write mdtests for the module
resolver,
testing that module resolution is case sensitive.
## Test Plan
I tested that the case-sensitive module resolver test start failing when
setting `system = "os"`
## Summary
Fixes https://github.com/astral-sh/ruff/issues/16476fixes: #11453
We format notebooks cell by cell. That means, that offsets in parse
errors are relative
to the cell and not the entire document. We didn't account for this fact
when emitting syntax errors for notebooks in the formatter.
This PR ensures that we correctly offset parse errors by the cell
location.
## Test Plan
Added test (it panicked before)
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
|
[globset](https://redirect.github.com/BurntSushi/ripgrep/tree/master/crates/globset)
([source](https://redirect.github.com/BurntSushi/ripgrep/tree/HEAD/crates/globset))
| workspace.dependencies | patch | `0.4.15` -> `0.4.16` |
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| Package | Type | Update | Change |
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| [clap](https://redirect.github.com/clap-rs/clap) |
workspace.dependencies | patch | `4.5.30` -> `4.5.31` |
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[Compare
Source](https://redirect.github.com/clap-rs/clap/compare/v4.5.30...v4.5.31)
##### Features
- Add `ValueParserFactory` for `Saturating<T>`
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [schemars](https://graham.cool/schemars/)
([source](https://redirect.github.com/GREsau/schemars)) |
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[Compare
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##### Fixed:
- Fix compatibility with rust 2024 edition
([https://github.com/GREsau/schemars/pull/378](https://redirect.github.com/GREsau/schemars/pull/378))
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| [insta](https://insta.rs/)
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- Support other indention characters than spaces in inline snapshots.
[#​679](https://redirect.github.com/mitsuhiko/insta/issues/679)
- Fix an issue where multiple targets with the same root would cause too
many pending snapshots to be reported.
[#​730](https://redirect.github.com/mitsuhiko/insta/issues/730)
- Hide `unseen` option in CLI, as it's pending deprecation.
[#​732](https://redirect.github.com/mitsuhiko/insta/issues/732)
- Stop `\t` and `\x1b` (ANSI color escape) from causing snapshots to be
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## Summary
This PR adds support for a pragma-style header for inline parser tests
containing JSON-serialized `ParseOptions`. For example,
```python
# parse_options: { "target-version": "3.9" }
match 2:
case 1:
pass
```
The line must start with `# parse_options: ` and then the rest of the
(trimmed) line is deserialized into `ParseOptions` used for parsing the
the test.
## Test Plan
Existing inline tests, plus two new inline tests for
`match-before-py310`.
---------
Co-authored-by: Alex Waygood <alex.waygood@gmail.com>
## Summary
Currently, the log messages emitted by the server includes multiple
information which isn't really required most of the time.
Here's the current format:
```
0.000755625s DEBUG main ruff_server::session::index::ruff_settings: Indexing settings for workspace: /Users/dhruv/playground/ruff
0.016334666s DEBUG ThreadId(10) ruff_server::session::index::ruff_settings: Ignored path via `exclude`: /Users/dhruv/playground/ruff/.vscode
0.019954541s INFO main ruff_server::session::index: Registering workspace: /Users/dhruv/playground/ruff
0.020160416s TRACE ruff:main notification{method="textDocument/didOpen"}: ruff_server::server::api: enter
0.020209625s TRACE ruff:worker:0 request{id=1 method="textDocument/diagnostic"}: ruff_server::server::api: enter
0.020228166s DEBUG ruff:worker:0 request{id=1 method="textDocument/diagnostic"}: ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/test.py
0.020359833s INFO ruff:main ruff_server::server: Configuration file watcher successfully registered
```
This PR updates the following:
* Uses current timestamp (same as red-knot) for all log levels instead
of the uptime value
* Includes the target and thread names only at the trace level
What this means is that the message is reduced to only important
information at DEBUG level:
```
2025-02-26 11:35:02.198375000 DEBUG Indexing settings for workspace: /Users/dhruv/playground/ruff
2025-02-26 11:35:02.209933000 DEBUG Ignored path via `exclude`: /Users/dhruv/playground/ruff/.vscode
2025-02-26 11:35:02.217165000 INFO Registering workspace: /Users/dhruv/playground/ruff
2025-02-26 11:35:02.217631000 DEBUG Included path via `include`: /Users/dhruv/playground/ruff/lsp/test.py
2025-02-26 11:35:02.217684000 INFO Configuration file watcher successfully registered
```
while still showing the other information (thread names and target) at
trace level:
```
2025-02-26 11:35:27.819617000 DEBUG main ruff_server::session::index::ruff_settings: Indexing settings for workspace: /Users/dhruv/playground/ruff
2025-02-26 11:35:27.830500000 DEBUG ThreadId(11) ruff_server::session::index::ruff_settings: Ignored path via `exclude`: /Users/dhruv/playground/ruff/.vscode
2025-02-26 11:35:27.837212000 INFO main ruff_server::session::index: Registering workspace: /Users/dhruv/playground/ruff
2025-02-26 11:35:27.837714000 TRACE ruff:main notification{method="textDocument/didOpen"}: ruff_server::server::api: enter
2025-02-26 11:35:27.838019000 INFO ruff:main ruff_server::server: Configuration file watcher successfully registered
2025-02-26 11:35:27.838084000 TRACE ruff:worker:1 request{id=1 method="textDocument/diagnostic"}: ruff_server::server::api: enter
2025-02-26 11:35:27.838205000 DEBUG ruff:worker:1 request{id=1 method="textDocument/diagnostic"}: ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/test.py
```
## Summary
[Internal design
document](https://www.notion.so/astral-sh/In-editor-settings-19e48797e1ca807fa8c2c91b689d9070?pvs=4)
This PR expands `ruff.configuration` to allow inline configuration
directly in the editor. For example:
```json
{
"ruff.configuration": {
"line-length": 100,
"lint": {
"unfixable": ["F401"],
"flake8-tidy-imports": {
"banned-api": {
"typing.TypedDict": {
"msg": "Use `typing_extensions.TypedDict` instead"
}
}
}
},
"format": {
"quote-style": "single"
}
}
}
```
This means that now `ruff.configuration` accepts either a path to
configuration file or the raw config itself. It's _mostly_ similar to
`--config` with one difference that's highlighted in the following
section. So, it can be said that the format of `ruff.configuration` when
provided the config map is same as the one on the [playground] [^1].
## Limitations
<details><summary><b>Casing (<code>kebab-case</code> v/s/
<code>camelCase</code>)</b></summary>
<p>
The config keys needs to be in `kebab-case` instead of `camelCase` which
is being used for other settings in the editor.
This could be a bit confusing. For example, the `line-length` option can
be set directly via an editor setting or can be configured via
`ruff.configuration`:
```json
{
"ruff.configuration": {
"line-length": 100
},
"ruff.lineLength": 120
}
```
#### Possible solution
We could use feature flag with [conditional
compilation](https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg_attr-attribute)
to indicate that when used in `ruff_server`, we need the `Options`
fields to be renamed as `camelCase` while for other crates it needs to
be renamed as `kebab-case`. But, this might not work very easily because
it will require wrapping the `Options` struct and create two structs in
which we'll have to add `#[cfg_attr(...)]` because otherwise `serde`
will complain:
```
error: duplicate serde attribute `rename_all`
--> crates/ruff_workspace/src/options.rs:43:38
|
43 | #[cfg_attr(feature = "editor", serde(rename_all = "camelCase"))]
| ^^^^^^^^^^
```
</p>
</details>
<details><summary><b>Nesting (flat v/s nested keys)</b></summary>
<p>
This is the major difference between `--config` flag on the command-line
v/s `ruff.configuration` and it makes it such that `ruff.configuration`
has same value format as [playground] [^1].
The config keys needs to be split up into keys which can result in
nested structure instead of flat structure:
So, the following **won't work**:
```json
{
"ruff.configuration": {
"format.quote-style": "single",
"lint.flake8-tidy-imports.banned-api.\"typing.TypedDict\".msg": "Use `typing_extensions.TypedDict` instead"
}
}
```
But, instead it would need to be split up like the following:
```json
{
"ruff.configuration": {
"format": {
"quote-style": "single"
},
"lint": {
"flake8-tidy-imports": {
"banned-api": {
"typing.TypedDict": {
"msg": "Use `typing_extensions.TypedDict` instead"
}
}
}
}
}
}
```
#### Possible solution (1)
The way we could solve this and make it same as `--config` would be to
add a manual logic of converting the JSON map into an equivalent TOML
string which would be then parsed into `Options`.
So, the following JSON map:
```json
{ "lint.flake8-tidy-imports": { "banned-api": {"\"typing.TypedDict\".msg": "Use typing_extensions.TypedDict instead"}}}
```
would need to be converted into the following TOML string:
```toml
lint.flake8-tidy-imports = { banned-api = { "typing.TypedDict".msg = "Use typing_extensions.TypedDict instead" } }
```
by recursively convering `"key": value` into `key = value` which is to
remove the quotes from key and replacing `:` with `=`.
#### Possible solution (2)
Another would be to just accept `Map<String, String>` strictly and
convert it into `key = value` and then parse it as a TOML string. This
would also match `--config` but quotes might become a nuisance because
JSON only allows double quotes and so it'll require escaping any inner
quotes or use single quotes.
</p>
</details>
## Test Plan
### VS Code
**Requires https://github.com/astral-sh/ruff-vscode/pull/702**
**`settings.json`**:
```json
{
"ruff.lint.extendSelect": ["TID"],
"ruff.configuration": {
"line-length": 50,
"format": {
"quote-style": "single"
},
"lint": {
"unfixable": ["F401"],
"flake8-tidy-imports": {
"banned-api": {
"typing.TypedDict": {
"msg": "Use `typing_extensions.TypedDict` instead"
}
}
}
}
}
}
```
Following video showcases me doing the following:
1. Check diagnostics that it includes `TID`
2. Run `Ruff: Fix all auto-fixable problems` to test `unfixable`
3. Run `Format: Document` to test `line-length` and `quote-style`
https://github.com/user-attachments/assets/0a38176f-3fb0-4960-a213-73b2ea5b1180
### Neovim
**`init.lua`**:
```lua
require('lspconfig').ruff.setup {
init_options = {
settings = {
lint = {
extendSelect = { 'TID' },
},
configuration = {
['line-length'] = 50,
format = {
['quote-style'] = 'single',
},
lint = {
unfixable = { 'F401' },
['flake8-tidy-imports'] = {
['banned-api'] = {
['typing.TypedDict'] = {
msg = 'Use typing_extensions.TypedDict instead',
},
},
},
},
},
},
},
}
```
Same steps as in the VS Code test:
https://github.com/user-attachments/assets/cfe49a9b-9a89-43d7-94f2-7f565d6e3c9d
## Documentation Preview
https://github.com/user-attachments/assets/e0062f58-6ec8-4e01-889d-fac76fd8b3c7
[playground]: https://play.ruff.rs
[^1]: This has one advantage that the value can be copy-pasted directly
into the playground
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [clap](https://redirect.github.com/clap-rs/clap) |
workspace.dependencies | patch | `4.5.29` -> `4.5.30` |
---
> [!WARNING]
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---
### Release Notes
<details>
<summary>clap-rs/clap (clap)</summary>
###
[`v4.5.30`](https://redirect.github.com/clap-rs/clap/blob/HEAD/CHANGELOG.md#4530---2025-02-17)
[Compare
Source](https://redirect.github.com/clap-rs/clap/compare/v4.5.29...v4.5.30)
##### Fixes
- *(assert)* Allow `num_args(0..=1)` to be used with `SetTrue`
- *(assert)* Clean up rendering of `takes_values` assertions
</details>
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|---|---|---|---|
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This PR contains the following updates:
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|---|---|---|---|
| [log](https://redirect.github.com/rust-lang/log) |
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| Package | Type | Update | Change |
|---|---|---|---|
| [tempfile](https://stebalien.com/projects/tempfile-rs/)
([source](https://redirect.github.com/Stebalien/tempfile)) |
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###
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[Compare
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- Fix build with `windows-sys` 0.52. Unfortunately, we have no CI for
older `windows-sys` versions at the moment...
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| [unicode-ident](https://redirect.github.com/dtolnay/unicode-ident) |
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- Documentation improvements
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Update to latest Salsa main branch. This provides a point of comparison
for the perf impact of fixpoint iteration, which is based on latest
Salsa main.
This requires an update to the locked version of our boxcar dep, since
Salsa now depends on a newer version of boxcar.
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [tempfile](https://stebalien.com/projects/tempfile-rs/)
([source](https://redirect.github.com/Stebalien/tempfile)) |
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###
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[Compare
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- Make sure to use absolute paths in when creating unnamed temporary
files (avoids a small race in the "immediate unlink" logic) and in
`Builder::make_in` (when creating temporary files of arbitrary types).
- Prevent a theoretical crash that could (maybe) happen when a temporary
file is created from a drop function run in a TLS destructor. Nobody has
actually reported a case of this happening in practice and I have been
unable to create this scenario in a test.
- When reseeding with `getrandom`, use platform (e.g., CPU) specific
randomness sources where possible.
- Clarify some documentation.
- Unlink unnamed temporary files on windows *immediately* when possible
instead of waiting for the handle to be closed. We open files with
"Unix" semantics, so this is generally possible.
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Co-authored-by: Micha Reiser <micha@reiser.io>
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [strum](https://redirect.github.com/Peternator7/strum) |
workspace.dependencies | patch | `0.27.0` -> `0.27.1` |
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###
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Source](https://redirect.github.com/Peternator7/strum/compare/v0.27.0...v0.27.1)
- [#​414](https://redirect.github.com/Peternator7/strum/pull/414):
Fix docrs build error.
- [#​417](https://redirect.github.com/Peternator7/strum/pull/417):
Mention `parse_error_ty` and `parse_error_fn` that had been
left out of the docs accidentally.
-
[#​421](https://redirect.github.com/Peternator7/strum/pull/421)[#​331](https://redirect.github.com/Peternator7/strum/pull/331):
Implement
`#[strum(transparent)]` attribute on `IntoStaticStr`, `Display` and
`AsRefStr` that forwards the implmenentation to
the inner value. Note that for static strings, the inner value must be
convertible to an `&'static str`.
```rust
#[derive(strum::Display)]
enum SurveyResponse {
Yes,
No,
#[strum(transparent)]
Other(String)
}
fn main() {
let response = SurveyResponse::Other("It was good".into());
println!("Question: Did you have fun?");
println!("Answer: {}", response);
// prints: Answer: It was good
}
```
</details>
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [clap](https://redirect.github.com/clap-rs/clap) |
workspace.dependencies | patch | `4.5.28` -> `4.5.29` |
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[Compare
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##### Fixes
- Change `ArgMatches::args_present` so not-present flags are considered
not-present (matching the documentation)
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [strum_macros](https://redirect.github.com/Peternator7/strum) |
workspace.dependencies | patch | `0.27.0` -> `0.27.1` |
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<summary>Peternator7/strum (strum_macros)</summary>
###
[`v0.27.1`](https://redirect.github.com/Peternator7/strum/blob/HEAD/CHANGELOG.md#0271)
[Compare
Source](https://redirect.github.com/Peternator7/strum/compare/v0.27.0...v0.27.1)
- [#​414](https://redirect.github.com/Peternator7/strum/pull/414):
Fix docrs build error.
- [#​417](https://redirect.github.com/Peternator7/strum/pull/417):
Mention `parse_error_ty` and `parse_error_fn` that had been
left out of the docs accidentally.
-
[#​421](https://redirect.github.com/Peternator7/strum/pull/421)[#​331](https://redirect.github.com/Peternator7/strum/pull/331):
Implement
`#[strum(transparent)]` attribute on `IntoStaticStr`, `Display` and
`AsRefStr` that forwards the implmenentation to
the inner value. Note that for static strings, the inner value must be
convertible to an `&'static str`.
```rust
#[derive(strum::Display)]
enum SurveyResponse {
Yes,
No,
#[strum(transparent)]
Other(String)
}
fn main() {
let response = SurveyResponse::Other("It was good".into());
println!("Question: Did you have fun?");
println!("Answer: {}", response);
// prints: Answer: It was good
}
```
</details>
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## Summary
This PR moves the `PythonVersion` struct from the
`red_knot_python_semantic` crate to the `ruff_python_ast` crate so that
it can be used more easily in the syntax error detection work. Compared
to that [prototype](https://github.com/astral-sh/ruff/pull/16090/) these
changes reduce us from 2 `PythonVersion` structs to 1.
This does not unify any of the `PythonVersion` *enums*, but I hope to
make some progress on that in a follow-up.
## Test Plan
Existing tests, this should not change any external behavior.
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
For now, the only thing one can configure is whether color is enabled or
not. This avoids needing to ask the `colored` crate whether colors have
been globally enabled or disabled. And, more crucially, avoids the need
to _set_ this global flag for testing diagnostic output. Doing so can
have unintended consequences, as outlined in #16115.
Fixes#16115
## Summary
Transition to using coarse-grained tracked structs (depends on
https://github.com/salsa-rs/salsa/pull/657). For now, this PR doesn't
add any `#[tracked]` fields, meaning that any changes cause the entire
struct to be invalidated. It also changes `AstNodeRef` to be
compared/hashed by pointer address, instead of performing a deep AST
comparison.
## Test Plan
This yields a 10-15% improvement on my machine (though weirdly some runs
were 5-10% without being flagged as inconsistent by criterion, is there
some non-determinism involved?). It's possible that some of this is
unrelated, I'll try applying the patch to the current salsa version to
make sure.
---------
Co-authored-by: Micha Reiser <micha@reiser.io>
## Summary
This PR adds a new `user_configuration_directory` method to `System`. We
need it to resolve where to lookup a user-level `knot.toml`
configuration file.
The method belongs to `System` because not all platforms have a
convention of where to store such configuration files (e.g. wasm).
I refactored `TestSystem` to be a simple wrapper around an `Arc<dyn
System...>` and use the `System.as_any` method instead to cast it down
to an `InMemory` system. I also removed some `System` specific methods
from `InMemoryFileSystem`, they don't belong there.
This PR removes the `os` feature as a default feature from `ruff_db`.
Most crates depending on `ruff_db` don't need it because they only
depend on `System` or only depend on `os` for testing. This was
necessary to fix a compile error with `red_knot_wasm`
## Test Plan
I'll make use of the method in my next PR. So I guess we won't know if
it works before then but I copied the code from Ruff/uv, so I have high
confidence that it is correct.
`cargo test`
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [rustc-hash](https://redirect.github.com/rust-lang/rustc-hash) |
workspace.dependencies | patch | `2.1.0` -> `2.1.1` |
---
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### Release Notes
<details>
<summary>rust-lang/rustc-hash (rustc-hash)</summary>
###
[`v2.1.1`](https://redirect.github.com/rust-lang/rustc-hash/blob/HEAD/CHANGELOG.md#211)
[Compare
Source](https://redirect.github.com/rust-lang/rustc-hash/compare/v2.1.0...v2.1.1)
- Change the internal algorithm to better accomodate large hashmaps.
This mitigates a [regression with 2.0 in
rustc](https://redirect.github.com/rust-lang/rust/issues/135477).
See [PR#55](https://redirect.github.com/rust-lang/rustc-hash/pull/55)
for more details on the change (this PR was not merged).
This problem might be improved with changes to hashbrown in the future.
#### 2.1.0
- Implement `Clone` for `FxRandomState`
- Implement `Clone` for `FxSeededState`
- Use SPDX license expression in license field
#### 2.0.0
- Replace hash with faster and better finalized hash.
This replaces the previous "fxhash" algorithm originating in Firefox
with a custom hasher designed and implemented by Orson Peters
([`@orlp`](https://redirect.github.com/orlp)).
It was measured to have slightly better performance for rustc, has
better theoretical properties
and also includes a significantly better string hasher.
- Fix `no_std` builds
#### 1.2.0 (**YANKED**)
**Note: This version has been yanked due to issues with the `no_std`
feature!**
- Add a `FxBuildHasher` unit struct
- Improve documentation
- Add seed API for supplying custom seeds other than 0
- Add `FxRandomState` based on `rand` (behind the `rand` feature) for
random seeds
- Make many functions `const fn`
- Implement `Clone` for `FxHasher` struct
</details>
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## Summary
Adds a JSON schema generation step for Red Knot. This PR doesn't yet add
a publishing step because it's still a bit early for that
## Test plan
I tested the schema in Zed, VS Code and PyCharm:
* PyCharm: You have to manually add a schema mapping (settings JSON
Schema Mappings)
* Zed and VS code support the inline schema specification
```toml
#:schema /Users/micha/astral/ruff/knot.schema.json
[environment]
extra-paths = []
[rules]
call-possibly-unbound-method = "error"
unknown-rule = "error"
# duplicate-base = "error"
```
```json
{
"$schema": "file:///Users/micha/astral/ruff/knot.schema.json",
"environment": {
"python-version": "3.13",
"python-platform": "linux2"
},
"rules": {
"unknown-rule": "error"
}
}
```
https://github.com/user-attachments/assets/a18fcd96-7cbe-4110-985b-9f1935584411
The Schema overall works but all editors have their own quirks:
* PyCharm: Hovering a name always shows the section description instead
of the description of the specific setting. But it's the same for other
settings in `pyproject.toml` files 🤷
* VS Code (JSON): Using the generated schema in a JSON file gives
exactly the experience I want
* VS Code (TOML):
* Properties with multiple possible values are repeated during
auto-completion without giving any hint how they're different. 
* The property description mushes together the description of the
property and the value, which looks sort of ridiculous. 
* Autocompletion and documentation hovering works (except the
limitations mentioned above)
* Zed:
* Very similar to VS Code with the exception that it uses the
description attribute to distinguish settings with multiple possible
values 
I don't think there's much we can do here other than hope (or help)
editors improve their auto completion. The same short comings also apply
to ruff, so this isn't something new. For now, I think this is good
enough
## Summary
Allow for literate style in Markdown tests and merge multiple (unnamed)
code blocks into a single embedded file.
closes#15941
## Test Plan
- Interactively made sure that error-lines were reported correctly in
multi-snippet sections.
This ties together everything from the previous commits.
Some interesting bits here are how the snapshot is generated
(where we include relevant info to make it easier to review
the snapshots) and also a tweak to how inline assertions are
processed.
This commit also includes some example snapshots just to get
a sense of what they look like. Follow-up work should add
more of these I think.
## Summary
This is a follow-up to #15726, #15778, and #15794 to preserve the triple
quote and prefix flags in plain strings, bytestrings, and f-strings.
I also added a `StringLiteralFlags::without_triple_quotes` method to
avoid passing along triple quotes in rules like SIM905 where it might
not make sense, as discussed
[here](https://github.com/astral-sh/ruff/pull/15726#discussion_r1930532426).
## Test Plan
Existing tests, plus many new cases in the `generator::tests::quote`
test that should cover all combinations of quotes and prefixes, at least
for simple string bodies.
Closes#7799 when combined with #15694, #15726, #15778, and #15794.
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [imara-diff](https://redirect.github.com/pascalkuthe/imara-diff) |
workspace.dependencies | patch | `0.1.7` -> `0.1.8` |
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<details>
<summary>pascalkuthe/imara-diff (imara-diff)</summary>
###
[`v0.1.8`](https://redirect.github.com/pascalkuthe/imara-diff/blob/HEAD/CHANGELOG.md#018---2025-2-1)
[Compare
Source](https://redirect.github.com/pascalkuthe/imara-diff/compare/v0.1.7...v0.1.8)
##### Changed
- update MSRV to 1.71
- drop ahash dependency in favour of hashbrowns default hasher
(foldhash)
##### Fixed
- incomplete documentation for sink and interner
</details>
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This PR contains the following updates:
| Package | Type | Update | Change |
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- Allow lifetimes in function pointer return values in
`ParseStream::call` and `Punctuated` parsers
([#​1847](https://redirect.github.com/dtolnay/syn/issues/1847))
###
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- Documentation improvements
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| Package | Type | Update | Change |
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [tempfile](https://stebalien.com/projects/tempfile-rs/)
([source](https://redirect.github.com/Stebalien/tempfile)) |
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- Update `getrandom` to `0.3.0` (thanks to
[@​paolobarbolini](https://redirect.github.com/paolobarbolini)).
- Allow `windows-sys` versions `0.59.x` in addition to `0.59.0` (thanks
[@​ErichDonGubler](https://redirect.github.com/ErichDonGubler)).
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This change does a simple swap of the existing renderer for one that
uses our vendored copy of `annotate-snippets`. We don't change anything
about the diagnostic data model, but this alone already makes
diagnostics look a lot nicer!
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [notify](https://redirect.github.com/notify-rs/notify) |
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- CHANGE: update notify-types to version 2.0.0
- CHANGE: raise MSRV to 1.77 **breaking**
- FEATURE: add config option to disable following symbolic links
[#​635]
- FIX: unaligned access to FILE_NOTIFY_INFORMATION [#​647]
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[#​635]: https://redirect.github.com/notify-rs/notify/pull/635
[#​647]: https://redirect.github.com/notify-rs/notify/pull/647
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## Summary
This PR adds support for configuring Red Knot in the `tool.knot` section
of the project's
`pyproject.toml` section. Options specified on the CLI precede the
options in the configuration file.
This PR only supports the `environment` and the `src.root` options for
now.
Other options will be added as separate PRs.
There are also a few concerns that I intentionally ignored as part of
this PR:
* Handling of relative paths: We need to anchor paths relative to the
current working directory (CLI), or the project (`pyproject.toml` or
`knot.toml`)
* Tracking the source of a value. Diagnostics would benefit from knowing
from which configuration a value comes so that we can point the user to
the right configuration file (or CLI) if the configuration is invalid.
* Schema generation and there's a lot more; see
https://github.com/astral-sh/ruff/issues/15491
This PR changes the default for first party codes: Our existing default
was to only add the project root. Now, Red Knot adds the project root
and `src` (if such a directory exists).
Theoretically, we'd have to add a file watcher event that changes the
first-party search paths if a user later creates a `src` directory. I
think this is pretty uncommon, which is why I ignored the complexity for
now but I can be persuaded to handle it if it's considered important.
Part of https://github.com/astral-sh/ruff/issues/15491
## Test Plan
Existing tests, new file watching test demonstrating that changing the
python version and platform is correctly reflected.
This is pretty much just moving to the new API and taking care to use
byte offsets. This is *almost* enough. The next commit will fix a bug
involving the handling of unprintable characters as a result of
switching to byte offsets.
This merely adds the crate to our repository. Some cosmetic changes are
made to make it work in our repo and follow our conventions, such as
changing the name to `ruff_annotate_snippets`. We retain the original
license information. We do drop some things, such as benchmarks, but
keep tests and examples.
## Summary
This PR re-introduces the control-flow graph implementation which was
first introduced in #5384, and then removed in #9463 due to not being
feature complete. Mainly, it lacked the ability to process
`try`-`except` blocks, along with some more minor bugs.
Closes#8958 and #8959 and #14881.
## Overview of Changes
I will now highlight the major changes implemented in this PR, in order
of implementation.
1. Introduced a post-processing step in loop handling to find any
`continue` or `break` statements within the loop body and redirect them
appropriately.
2. Introduced a loop-continue block which is always placed at the end of
loop blocks, and ensures proper looping regardless of the internal logic
of the block. This resolves#8958.
3. Implemented `try` processing with the following logic (resolves
#8959):
1. In the example below the cfg first encounters a conditional
`ExceptionRaised` forking if an exception was (or will be) raised in the
try block. This is not possible to know (except for trivial cases) so we
assume both paths can be taken unconditionally.
2. Going down the `try` path the cfg goes `try`->`else`->`finally`
unconditionally.
3. Going down the `except` path the cfg will meet several conditional
`ExceptionCaught` which fork depending on the nature of the exception
caught. Again there's no way to know which exceptions may be raised so
both paths are assumed to be taken unconditionally.
4. If none of the exception blocks catch the exception then the cfg
terminates by raising a new exception.
5. A post-processing step is also implemented to redirect any `raises`
or `returns` within the blocks appropriately.
```python
def func():
try:
print("try")
except Exception:
print("Exception")
except OtherException as e:
print("OtherException")
else:
print("else")
finally:
print("finally")
```
```mermaid
flowchart TD
start(("Start"))
return(("End"))
block0[["`*(empty)*`"]]
block1["print(#quot;finally#quot;)\n"]
block2["print(#quot;else#quot;)\n"]
block3["print(#quot;try#quot;)\n"]
block4[["Exception raised"]]
block5["print(#quot;OtherException#quot;)\n"]
block6["try:
print(#quot;try#quot;)
except Exception:
print(#quot;Exception#quot;)
except OtherException as e:
print(#quot;OtherException#quot;)
else:
print(#quot;else#quot;)
finally:
print(#quot;finally#quot;)\n"]
block7["print(#quot;Exception#quot;)\n"]
block8["try:
print(#quot;try#quot;)
except Exception:
print(#quot;Exception#quot;)
except OtherException as e:
print(#quot;OtherException#quot;)
else:
print(#quot;else#quot;)
finally:
print(#quot;finally#quot;)\n"]
block9["try:
print(#quot;try#quot;)
except Exception:
print(#quot;Exception#quot;)
except OtherException as e:
print(#quot;OtherException#quot;)
else:
print(#quot;else#quot;)
finally:
print(#quot;finally#quot;)\n"]
start --> block9
block9 -- "Exception raised" --> block8
block9 -- "else" --> block3
block8 -- "Exception" --> block7
block8 -- "else" --> block6
block7 --> block1
block6 -- "OtherException" --> block5
block6 -- "else" --> block4
block5 --> block1
block4 --> return
block3 --> block2
block2 --> block1
block1 --> block0
block0 --> return
```
6. Implemented `with` processing with the following logic:
1. `with` statements have no conditional execution (apart from the
hidden logic handling the enter and exit), so the block is assumed to
execute unconditionally.
2. The one exception is that exceptions raised within the block may
result in control flow resuming at the end of the block. Since it is not
possible know if an exception will be raised, or if it will be handled
by the context manager, we assume that execution always continues after
`with` blocks even if the blocks contain `raise` or `return` statements.
This is handled in a post-processing step.
## Test Plan
Additional test fixtures and control-flow fixtures were added.
---------
Co-authored-by: Micha Reiser <micha@reiser.io>
Co-authored-by: dylwil3 <dylwil3@gmail.com>
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [env_logger](https://redirect.github.com/rust-cli/env_logger) |
workspace.dependencies | patch | `0.11.5` -> `0.11.6` |
---
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###
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##### Features
- Opt-in file and line rendering
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [serde_json](https://redirect.github.com/serde-rs/json) |
workspace.dependencies | patch | `1.0.133` -> `1.0.134` |
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###
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[Compare
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- Add `RawValue` associated constants for literal `null`, `true`,
`false`
([#​1221](https://redirect.github.com/serde-rs/json/issues/1221),
thanks [@​bheylin](https://redirect.github.com/bheylin))
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [syn](https://redirect.github.com/dtolnay/syn) |
workspace.dependencies | patch | `2.0.90` -> `2.0.91` |
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- Support parsing `Vec<Arm>` using `parse_quote!`
([#​1796](https://redirect.github.com/dtolnay/syn/issues/1796),
[#​1797](https://redirect.github.com/dtolnay/syn/issues/1797))
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## Summary
I'm currently on the fence about landing the #14760 PR because it's
unclear how we'd support tracking used and unused suppression comments
in a performant way:
* Salsa adds an "untracked" dependency to every query reading
accumulated values. This has the effect that the query re-runs on every
revision. For example, a possible future query
`unused_suppression_comments(db, file)` would re-run on every
incremental change and for every file. I don't expect the operation
itself to be expensive, but it all adds up in a project with 100k+ files
* Salsa collects the accumulated values by traversing the entire query
dependency graph. It can skip over sub-graphs if it is known that they
contain no accumulated values. This makes accumulators a great tool for
when they are rare; diagnostics are a good example. Unfortunately,
suppressions are more common, and they often appear in many different
files, making the "skip over subgraphs" optimization less effective.
Because of that, I want to wait to adopt salsa accumulators for type
check diagnostics (we could start using them for other diagnostics)
until we have very specific reasons that justify regressing incremental
check performance.
This PR does a "small" refactor that brings us closer to what I have in
#14760 but without using accumulators. To emit a diagnostic, a method
needs:
* Access to the db
* Access to the currently checked file
This PR introduces a new `InferContext` that holds on to the db, the
current file, and the reported diagnostics. It replaces the
`TypeCheckDiagnosticsBuilder`. We pass the `InferContext` instead of the
`db` to methods that *might* emit diagnostics. This simplifies some of
the `Outcome` methods, which can now be called with a context instead of
a `db` and the diagnostics builder. Having the `db` and the file on a
single type like this would also be useful when using accumulators.
This PR doesn't solve the issue that the `Outcome` types feel somewhat
complicated nor that it can be annoying when you need to report a
`Diagnostic,` but you don't have access to an `InferContext` (or the
file). However, I also believe that accumulators won't solve these
problems because:
* Even with accumulators, it's necessary to have a reference to the file
that's being checked. The struggle would be to get a reference to that
file rather than getting a reference to `InferContext`.
* Users of the `HasTy` trait (e.g., a linter) don't want to bother
getting the `File` when calling `Type::return_ty` because they aren't
interested in the created diagnostics. They just want to know what
calling the current expression would return (and if it even is a
callable). This is what the different methods of `Outcome` enable today.
I can ask for the return type without needing extra data that's only
relevant for emitting a diagnostic.
A shortcoming of this approach is that it is now a bit confusing when to
pass `db` and when an `InferContext`. An option is that we'd make the
`file` on `InferContext` optional (it won't collect any diagnostics if
`None`) and change all methods on `Type` to take `InferContext` as the
first argument instead of a `db`. I'm interested in your opinion on
this.
Accumulators are definitely harder to use incorrectly because they
remove the need to merge the diagnostics explicitly and there's no risk
that we accidentally merge the diagnostics twice, resulting in
duplicated diagnostics. I still value performance more over making our
life slightly easier.
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [colored](https://redirect.github.com/mackwic/colored) |
workspace.dependencies | minor | `2.1.0` -> `2.2.0` |
---
### Release Notes
<details>
<summary>mackwic/colored (colored)</summary>
###
[`v2.2.0`](https://redirect.github.com/mackwic/colored/compare/v2.1.0...v2.2.0)
[Compare
Source](https://redirect.github.com/mackwic/colored/compare/v2.1.0...v2.2.0)
</details>
---
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## Summary
This is the second PR out of three that adds support for
enabling/disabling lint rules in Red Knot. You may want to take a look
at the [first PR](https://github.com/astral-sh/ruff/pull/14869) in this
stack to familiarize yourself with the used terminology.
This PR adds a new syntax to define a lint:
```rust
declare_lint! {
/// ## What it does
/// Checks for references to names that are not defined.
///
/// ## Why is this bad?
/// Using an undefined variable will raise a `NameError` at runtime.
///
/// ## Example
///
/// ```python
/// print(x) # NameError: name 'x' is not defined
/// ```
pub(crate) static UNRESOLVED_REFERENCE = {
summary: "detects references to names that are not defined",
status: LintStatus::preview("1.0.0"),
default_level: Level::Warn,
}
}
```
A lint has a name and metadata about its status (preview, stable,
removed, deprecated), the default diagnostic level (unless the
configuration changes), and documentation. I use a macro here to derive
the kebab-case name and extract the documentation automatically.
This PR doesn't yet add any mechanism to discover all known lints. This
will be added in the next and last PR in this stack.
## Documentation
I documented some rules but then decided that it's probably not my best
use of time if I document all of them now (it also means that I play
catch-up with all of you forever). That's why I left some rules
undocumented (marked with TODO)
## Where is the best place to define all lints?
I'm not sure. I think what I have in this PR is fine but I also don't
love it because most lints are in a single place but not all of them. If
you have ideas, let me know.
## Why is the message not part of the lint, unlike Ruff's `Violation`
I understand that the main motivation for defining `message` on
`Violation` in Ruff is to remove the need to repeat the same message
over and over again. I'm not sure if this is an actual problem. Most
rules only emit a diagnostic in a single place and they commonly use
different messages if they emit diagnostics in different code paths,
requiring extra fields on the `Violation` struct.
That's why I'm not convinced that there's an actual need for it and
there are alternatives that can reduce the repetition when creating a
diagnostic:
* Create a helper function. We already do this in red knot with the
`add_xy` methods
* Create a custom `Diagnostic` implementation that tailors the entire
diagnostic and pre-codes e.g. the message
Avoiding an extra field on the `Violation` also removes the need to
allocate intermediate strings as it is commonly the place in Ruff.
Instead, Red Knot can use a borrowed string with `format_args`
## Test Plan
`cargo test`
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [pep440_rs](https://redirect.github.com/konstin/pep440-rs) |
workspace.dependencies | patch | `0.7.2` -> `0.7.3` |
---
### Release Notes
<details>
<summary>konstin/pep440-rs (pep440_rs)</summary>
###
[`v0.7.3`](https://redirect.github.com/konstin/pep440-rs/blob/HEAD/Changelog.md#073)
[Compare
Source](https://redirect.github.com/konstin/pep440-rs/compare/v0.7.2...v0.7.3)
- Use once_cell to lower MSRV
</details>
---
### Configuration
📅 **Schedule**: Branch creation - "before 4am on Monday" (UTC),
Automerge - At any time (no schedule defined).
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♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
## Summary
This adds support for specifying the target Python version from a
Markdown test. It is a somewhat limited ad-hoc solution, but designed to
be future-compatible. TOML blocks can be added to arbitrary sections in
the Markdown block. They have the following format:
````markdown
```toml
[tool.knot.environment]
target-version = "3.13"
```
````
So far, there is nothing else that can be configured, but it should be
straightforward to extend this to things like a custom typeshed path.
This is in preparation for the statically-known branches feature where
we are going to have to specify the target version for lots of tests.
## Test Plan
- New Markdown test that fails without the explicitly specified
`target-version`.
- Manually tested various error paths when specifying a wrong
`target-version` field.
- Made sure that running tests is as fast as before.
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## Summary
in unknown moment older versions became broken for windows-gnullvm
targets. this update shouldn't break anything
<!-- What's the purpose of the change? What does it do, and why? -->
## Test Plan
successfully built for windows-gnullvm with `cargo build`
<!-- How was it tested? -->
## Summary
This PR adds a new `property_tests` module with quickcheck-based tests
that verify certain properties of types. The following properties are
currently checked:
* `is_equivalent_to`:
* is reflexive: `T` is equivalent to itself
* `is_subtype_of`:
* is reflexive: `T` is a subtype of `T`
* is antisymmetric: if `S <: T` and `T <: S`, then `S` is equivalent to
`T`
* is transitive: `S <: T` & `T <: U` => `S <: U`
* `is_disjoint_from`:
* is irreflexive: `T` is not disjoint from `T`
* is symmetric: `S` disjoint from `T` => `T` disjoint from `S`
* `is_assignable_to`:
* is reflexive
* `negate`:
* is an involution: `T.negate().negate()` is equivalent to `T`
There are also some tests that validate higher-level properties like:
* `S <: T` implies that `S` is not disjoint from `T`
* `S <: T` implies that `S` is assignable to `T`
* A singleton type must also be single-valued
These tests found a few bugs so far:
- #14177
- #14195
- #14196
- #14210
- #14731
Some additional notes:
- Quickcheck-based property tests are non-deterministic and finding
counter-examples might take an arbitrary long time. This makes them bad
candidates for running in CI (for every PR). We can think of running
them in a cron-job way from time to time, similar to fuzzing. But for
now, it's only possible to run them locally (see instructions in source
code).
- Some tests currently find false positive "counterexamples" because our
understanding of equivalence of types is not yet complete. We do not
understand that `int | str` is the same as `str | int`, for example.
These tests are in a separate `property_tests::flaky` module.
- Properties can not be formulated in every way possible, due to the
fact that `is_disjoint_from` and `is_subtype_of` can produce false
negative answers.
- The current shrinking implementation is very naive, which leads to
counterexamples that are very long (`str & Any & ~tuple[Any] &
~tuple[Unknown] & ~Literal[""] & ~Literal["a"] | str & int & ~tuple[Any]
& ~tuple[Unknown]`), requiring the developer to simplify manually. It
has not been a major issue so far, but there is a comment in the code
how this can be improved.
- The tests are currently implemented using a macro. This is a single
commit on top which can easily be reverted, if we prefer the plain code
instead. With the macro:
```rs
// `S <: T` implies that `S` can be assigned to `T`.
type_property_test!(
subtype_of_implies_assignable_to, db,
forall types s, t. s.is_subtype_of(db, t) => s.is_assignable_to(db, t)
);
```
without the macro:
```rs
/// `S <: T` implies that `S` can be assigned to `T`.
#[quickcheck]
fn subtype_of_implies_assignable_to(s: Ty, t: Ty) -> bool {
let db = get_cached_db();
let s = s.into_type(&db);
let t = t.into_type(&db);
!s.is_subtype_of(&*db, t) || s.is_assignable_to(&*db, t)
}
```
## Test Plan
```bash
while cargo test --release -p red_knot_python_semantic --features property_tests types::property_tests; do :; done
```