In effect, we make the Salsa query aspect keyed only on whether we want
global symbols. We move everything else (hierarchical and querying) to
an aggregate step *after* the query.
This was a somewhat involved change since we want to return a flattened
list from visiting the source while also preserving enough information
to reform the symbols into a hierarchical structure that the LSP
expects. But I think overall the API has gotten simpler and we encode
more invariants into the type system. (For example, previously you got a
runtime assertion if you tried to provide a query string while enabling
hierarchical mode. But now that's prevented by construction.)
Basically, this splits the implementation into two pieces:
the first piece does the traversal and finds *all* symbols
across the workspace. The second piece does filtering based
on a user provided query string. Only the first piece is
cached by Salsa.
This brings warm "workspace symbols" requests down from
500-600ms to 100-200ms.
## Summary
Looks like an oversight at some point that led to two identical globals,
the one in `ty_project` just calls `ty_python_semantic::register_lints`.
Summary
--
This is a preparatory PR in support of #19919. It moves our `Diff`
rendering code from `ruff_linter` to `ruff_db`, where we have direct
access to the `DiagnosticStylesheet` used by our other diagnostic
rendering code. As shown by the tests, this shouldn't cause any visible
changes. The colors aren't exactly the same, as I note in a TODO
comment, but I don't think there's any existing way to see those, even
in tests.
The `Diff` implementation is mostly unchanged. I just switched from a
Ruff-specific `SourceFile` to a `DiagnosticSource` (removing an
`expect_ruff_source_file` call) and updated the `LineStyle` struct and
other styling calls to use `fmt_styled` and our existing stylesheet.
In support of these changes, I added three styles to our stylesheet:
`insertion` and `deletion` for the corresponding diff operations, and
`underline`, which apparently we _can_ use, as I hoped on Discord. This
isn't supported in all terminals, though. It worked in ghostty but not
in st for me.
I moved the `calculate_print_width` function from the now-deleted
`diff.rs` to a method on `OneIndexed`, where it was available everywhere
we needed it. I'm not sure if that's desirable, or if my other changes
to the function are either (using `ilog10` instead of a loop). This does
make it `const` and slightly simplifies things in my opinion, but I'm
happy to revert it if preferred.
I also inlined a version of `show_nonprinting` from the
`ShowNonprinting` trait in `ruff_linter`:
f4be05a83b/crates/ruff_linter/src/text_helpers.rs (L3-L5)
This trait is now only used in `source_kind.rs`, so I'm not sure it's
worth having the trait or the macro-generated implementation (which is
only called once). This is obviously closely related to our unprintable
character handling in diagnostic rendering, but the usage seems
different enough not to try to combine them.
f4be05a83b/crates/ruff_db/src/diagnostic/render.rs (L990-L998)
We could also move the trait to another crate where we can use it in
`ruff_db` instead of inlining here, of course.
Finally, this PR makes `TextEmitter` a very thin wrapper around a
`DisplayDiagnosticsConfig`. It's still used in a few places, though,
unlike the other emitters we've replaced, so I figured it was worth
keeping around. It's a pretty nice API for setting all of the options on
the config and then passing that along to a `DisplayDiagnostics`.
Test Plan
--
Existing snapshot tests with diffs
## Summary
This is a follow-up to
https://github.com/astral-sh/ruff/pull/19415#discussion_r2263456740 to
remove some unused code. As Micha noticed,
`GroupedEmitter::with_show_source` was only used in local unit tests[^1]
and was safe to remove. This allowed deleting `MessageCodeFrame` and a
lot more helper code previously shared with the `full` output format.
I also moved some other code from `text.rs` and `message/mod.rs` into
`grouped.rs` that is now only used for the `grouped` format. With a
little refactoring of the `concise` rendering logic in `ruff_db`, we
could probably remove `RuleCodeAndBody` too. The only difference I see
from the `concise` output is whether we print the filename next to the
row and column or not:
```shell
> ruff check --output-format concise
try.py:1:8: F401 [*] `math` imported but unused
> ruff check --output-format grouped
try.py:
1:8 F401 [*] `math` imported but unused
```
But I didn't try to do that here.
## Test Plan
Existing tests, with the source code no longer displayed. I also deleted
one test, as it was now a duplicate of the `default` test.
[^1]: "Local unit tests" as opposed to all of our linter snapshot tests,
as is the case for `TextEmitter::with_show_fix_diff`. We also want to
expose that to users eventually
(https://github.com/astral-sh/ruff/issues/7352), which I don't believe
is the case for the `grouped` format.
## Summary
This PR implements support for providing LSP client settings.
The complementary PR in the ty VS Code extension:
astral-sh/ty-vscode#106.
Notes for the previous iteration of this PR is in
https://github.com/astral-sh/ruff/pull/19614#issuecomment-3136477864
(click on "Details").
Specifically, this PR splits the client settings into 3 distinct groups.
Keep in mind that these groups are not visible to the user, they're
merely an implementation detail. The groups are:
1. `GlobalOptions` - these are the options that are global to the
language server and will be the same for all the workspaces that are
handled by the server
2. `WorkspaceOptions` - these are the options that are specific to a
workspace and will be applied only when running any logic for that
workspace
3. `InitializationOptions` - these are the options that can be specified
during initialization
The initialization options are a superset that contains both the global
and workspace options flattened into a 1-dimensional structure. This
means that the user can specify any and all fields present in
`GlobalOptions` and `WorkspaceOptions` in the initialization options in
addition to the fields that are _specific_ to initialization options.
From the current set of available settings, following are only available
during initialization because they are required at that time, are static
during the runtime of the server and changing their values require a
restart to take effect:
- `logLevel`
- `logFile`
And, following are available under `GlobalOptions`:
- `diagnosticMode`
And, following under `WorkspaceOptions`:
- `disableLanguageServices`
- `pythonExtension` (Python environment information that is populated by
the ty VS Code extension)
### `workspace/configuration`
This request allows server to ask the client for configuration to a
specific workspace. But, this is only supported by the client that has
the `workspace.configuration` client capability set to `true`. What to
do for clients that don't support pulling configurations?
In that case, the settings needs to be provided in the initialization
options and updating the values of those settings can only be done by
restarting the server. With the way this is implemented, this means that
if the client does not support pulling workspace configuration then
there's no way to specify settings specific to a workspace. Earlier,
this would've been possible by providing an array of client options with
an additional field which specifies which workspace the options belong
to but that adds complexity and clients that actually do not support
`workspace/configuration` would usually not support multiple workspaces
either.
Now, for the clients that do support this, the server will initiate the
request to get the configuration for all the workspaces at the start of
the server. Once the server receives these options, it will resolve them
for each workspace as follows:
1. Combine the client options sent during initialization with the
options specific to the workspace creating the final client options
that's specific to this workspace
2. Create a global options by combining the global options from (1) for
all workspaces which in turn will also combine the global options sent
during initialization
The global options are resolved into the global settings and are
available on the `Session` which is initialized with the default global
settings. The workspace options are resolved into the workspace settings
and are available on the respective `Workspace`.
The `SessionSnapshot` contains the global settings while the document
snapshot contains the workspace settings. We could add the global
settings to the document snapshot but that's currently not needed.
### Document diagnostic dynamic registration
Currently, the document diagnostic server capability is created based on
the `diagnosticMode` sent during initialization. But, that wouldn't
provide us with the complete picture. This means the server needs to
defer registering the document diagnostic capability at a later point
once the settings have been resolved.
This is done using dynamic registration for clients that support it. For
clients that do not support dynamic registration for document diagnostic
capability, the server advertises itself as always supporting workspace
diagnostics and work done progress token.
This dynamic registration now allows us to change the server capability
for workspace diagnostics based on the resolved `diagnosticMode` value.
In the future, once `workspace/didChangeConfiguration` is supported, we
can avoid the server restart when users have changed any client
settings.
## Test Plan
Add integration tests and recorded videos on the user experience in
various editors:
### VS Code
For VS Code users, the settings experience is unchanged because the
extension defines it's own interface on how the user can specify the
server setting. This means everything is under the `ty.*` namespace as
usual.
https://github.com/user-attachments/assets/c2e5ba5c-7617-406e-a09d-e397ce9c3b93
### Zed
For Zed, the settings experience has changed. Users can specify settings
during initialization:
```json
{
"lsp": {
"ty": {
"initialization_options": {
"logLevel": "debug",
"logFile": "~/.cache/ty.log",
"diagnosticMode": "workspace",
"disableLanguageServices": true
}
},
}
}
```
Or, can specify the options under the `settings` key:
```json
{
"lsp": {
"ty": {
"settings": {
"ty": {
"diagnosticMode": "openFilesOnly",
"disableLanguageServices": true
}
},
"initialization_options": {
"logLevel": "debug",
"logFile": "~/.cache/ty.log"
}
},
}
}
```
The `logLevel` and `logFile` setting still needs to go under the
initialization options because they're required by the server during
initialization.
We can remove the nesting of the settings under the "ty" namespace by
updating the return type of
db9ea0cdfd/src/tychecker.rs (L45-L49)
to be wrapped inside `ty` directly so that users can avoid doing the
double nesting.
There's one issue here which is that if the `diagnosticMode` is
specified in both the initialization option and settings key, then the
resolution is a bit different - if either of them is set to be
`workspace`, then it wins which means that in the following
configuration, the diagnostic mode is `workspace`:
```json
{
"lsp": {
"ty": {
"settings": {
"ty": {
"diagnosticMode": "openFilesOnly"
}
},
"initialization_options": {
"diagnosticMode": "workspace"
}
},
}
}
```
This behavior is mainly a result of combining global options from
various workspace configuration results. Users should not be able to
provide global options in multiple workspaces but that restriction
cannot be done on the server side. The ty VS Code extension restricts
these global settings to only be set in the user settings and not in
workspace settings but we do not control extensions in other editors.
https://github.com/user-attachments/assets/8e2d6c09-18e6-49e5-ab78-6cf942fe1255
### Neovim
Same as in Zed.
### Other
Other editors that do not support `workspace/configuration`, the users
would need to provide the server settings during initialization.
## Summary
This PR adds type inference for key-based access on `TypedDict`s and a
new diagnostic for invalid subscript accesses:
```py
class Person(TypedDict):
name: str
age: int | None
alice = Person(name="Alice", age=25)
reveal_type(alice["name"]) # revealed: str
reveal_type(alice["age"]) # revealed: int | None
alice["naem"] # Unknown key "naem" - did you mean "name"?
```
## Test Plan
Updated Markdown tests
## Summary
This PR adds a new `Type::TypedDict` variant. Before this PR, we treated
`TypedDict`-based types as dynamic Todo-types, and I originally planned
to make this change a no-op. And we do in fact still treat that new
variant similar to a dynamic type when it comes to type properties such
as assignability and subtyping. But then I somehow tricked myself into
implementing some of the things correctly, so here we are. The two main
behavioral changes are: (1) we now also detect generic `TypedDict`s,
which removes a few false positives in the ecosystem, and (2) we now
support *attribute* access (not key-based indexing!) on these types,
i.e. we infer proper types for something like
`MyTypedDict.__required_keys__`. Nothing exciting yet, but gets the
infrastructure into place.
Note that with this PR, the type of (the type) `MyTypedDict` itself is
still represented as a `Type::ClassLiteral` or `Type::GenericAlias` (in
case `MyTypedDict` is generic). Only inhabitants of `MyTypedDict`
(instances of `dict` at runtime) are represented by `Type::TypedDict`.
We may want to revisit this decision in the future, if this turns out to
be too error-prone. Right now, we need to use `.is_typed_dict(db)` in
all the right places to distinguish between actual (generic) classes and
`TypedDict`s. But so far, it seemed unnecessary to add additional `Type`
variants for these as well.
part of https://github.com/astral-sh/ty/issues/154
## Ecosystem impact
The new diagnostics on `cloud-init` look like true positives to me.
## Test Plan
Updated and new Markdown tests
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [notify](https://redirect.github.com/notify-rs/notify) |
workspace.dependencies | minor | `8.1.0` -> `8.2.0` |
---
> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.
---
### Release Notes
<details>
<summary>notify-rs/notify (notify)</summary>
###
[`v8.2.0`](https://redirect.github.com/notify-rs/notify/blob/HEAD/CHANGELOG.md#notify-820-2025-08-03)
[Compare
Source](https://redirect.github.com/notify-rs/notify/compare/notify-8.1.0...notify-8.2.0)
- FEATURE: notify user if inotify's `max_user_watches` has been reached
[#​698]
- FIX: `INotifyWatcher` ignore events with unknown watch descriptors
(instead of `EventMask::Q_OVERFLOW`) [#​700]
[#​698]: https://redirect.github.com/notify-rs/notify/pull/698
[#​700]: https://redirect.github.com/notify-rs/notify/pull/700
</details>
---
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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 | `1.0.141` -> `1.0.142` |
---
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### Release Notes
<details>
<summary>serde-rs/json (serde_json)</summary>
###
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[Compare
Source](https://redirect.github.com/serde-rs/json/compare/v1.0.141...v1.0.142)
- impl Default for \&Value
([#​1265](https://redirect.github.com/serde-rs/json/issues/1265),
thanks [@​aatifsyed](https://redirect.github.com/aatifsyed))
</details>
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## Summary
I was a bit stuck on some snapshot differences I was seeing in #19415,
but @BurntSushi pointed out that `annotate-snippets` already normalizes
tabs on its own, which was very helpful! Instead of applying this change
directly to the other branch, I wanted to try applying it in
`ruff_linter` first. This should very slightly reduce the number of
changes in #19415 proper.
It looks like `annotate-snippets` always expands a tab to four spaces,
whereas I think we were aligning to tab stops:
```diff
6 | spam(ham[1], { eggs: 2})
7 | #: E201:1:6
- 8 | spam( ham[1], {eggs: 2})
- | ^^^ E201
+ 8 | spam( ham[1], {eggs: 2})
+ | ^^^^ E201
```
```diff
61 | #: E203:2:15 E702:2:16
62 | if x == 4:
-63 | print(x, y) ; x, y = y, x
- | ^ E203
+63 | print(x, y) ; x, y = y, x
+ | ^^^^ E203
```
```diff
E27.py:15:6: E271 [*] Multiple spaces after keyword
|
-13 | True and False
+13 | True and False
14 | #: E271
15 | a and b
| ^^ E271
```
I don't think this is too bad and has the major benefit of allowing us
to pass the non-tab-expanded range to `annotate-snippets` in #19415,
where it's also displayed in the header. Ruff doesn't have this problem
currently because it uses its own concise diagnostic output as the
header for full diagnostics, where the pre-expansion range is used
directly.
## Test Plan
Existing tests with a few snapshot updates
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [criterion](https://bheisler.github.io/criterion.rs/book/index.html)
([source](https://redirect.github.com/bheisler/criterion.rs)) |
workspace.dependencies | minor | `0.6.0` -> `0.7.0` |
---
> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.
---
### Release Notes
<details>
<summary>bheisler/criterion.rs (criterion)</summary>
###
[`v0.7.0`](https://redirect.github.com/bheisler/criterion.rs/blob/HEAD/CHANGELOG.md#070---2025-07-25)
[Compare
Source](https://redirect.github.com/bheisler/criterion.rs/compare/0.6.0...0.7.0)
- Bump version of criterion-plot to align dependencies.
</details>
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## Summary
Closes: astral-sh/ty#88
This PR implements an initial version of a mock language server that can
be used to write e2e tests using the real server running in the
background.
The way it works is that you'd use the `TestServerBuilder` to help
construct the `TestServer` with the setup data. This could be the
workspace folders, populating the file and it's content in the memory
file system, setting the right client capabilities to make the server
respond correctly, etc. This can be expanded as we write more test
cases.
There are still a few things to follow-up on:
- ~In the `Drop` implementation, we should assert that there are no
pending notification, request and responses from the server that the
test code hasn't handled yet~ Implemented in [`afd1f82`
(#19391)](afd1f82bde)
- Reduce the setup boilerplate in any way we can
- Improve the final assertion, currently I'm just snapshotting the final
output
## Test Plan
Written a few test cases.
This implements mapping of definitions in stubs to definitions in the
"real" implementation using the approach described in
https://github.com/astral-sh/ty/issues/788#issuecomment-3097000287
I've tested this with goto-definition in vscode with code that uses
`colorama` and `types-colorama`.
Notably this implementation does not add support for stub-mapping stdlib
modules, which can be done as an essentially orthogonal followup in the
implementation of `resolve_real_module`.
Part of https://github.com/astral-sh/ty/issues/788
This is a follow-on to #19410 that further reduces the memory usage of
our reachability constraints. When finishing the building of a use-def
map, we walk through all of the "final" states and mark only those
reachability constraints as "used". We then throw away the interior TDD
nodes of any reachability constraints that weren't marked as used.
(This helps because we build up quite a few intermediate TDD nodes when
constructing complex reachability constraints. These nodes can never be
accessed if they were _only_ used as an intermediate TDD node. The
marking step ensures that we keep any nodes that ended up being referred
to in some accessible use-def map state.)
Summary
--
This PR moves the JUnit output format to the new rendering
infrastructure. As I
mention in a TODO in the code, there's some code that will be shared
with the
`grouped` output format. Hopefully I'll have that PR up too by the time
this one
is reviewed.
Test Plan
--
Existing tests moved to `ruff_db`
---------
Co-authored-by: Micha Reiser <micha@reiser.io>
## Summary
This PR updates the `ResolvedClientCapabilities` to be represented as
`bitflags`. This allows us to remove the `Arc` as the type becomes copy.
Additionally, this PR also fixed the goto definition and declaration
code to use the `textDocument.definition.linkSupport` and
`textDocument.declaration.linkSupport` client capability.
This PR also removes the unused client capabilities which are
`code_action_deferred_edit_resolution`, `apply_edit`, and
`document_changes` which are all related to auto-fix ability.
## Summary
This was originally stacked on #19129, but some of the changes I made
for JSON also impacted the Azure format, so I went ahead and combined
them. The main changes here are:
- Implementing `FileResolver` for Ruff's `EmitterContext`
- Adding `FileResolver::notebook_index` and `FileResolver::is_notebook`
methods
- Adding a `DisplayDiagnostics` (with an "s") type for rendering a group
of diagnostics at once
- Adding `Azure`, `Json`, and `JsonLines` as new `DiagnosticFormat`s
I tried a couple of alternatives to the `FileResolver::notebook` methods
like passing down the `NotebookIndex` separately and trying to reparse a
`Notebook` from Ruff's `SourceFile`. The latter seemed promising, but
the `SourceFile` only stores the concatenated plain text of the
notebook, not the re-parsable JSON. I guess the current version is just
a variation on passing the `NotebookIndex`, but at least we can reuse
the existing `resolver` argument. I think a lot of this can be cleaned
up once Ruff has its own actual file resolver.
As suggested, I also tried deleting the corresponding `Emitter` files in
`ruff_linter`, but it doesn't look like git was able to follow this as a
rename. It did, however, track that the tests were moved, so the
snapshots should be easy to review.
## Test Plan
Existing Ruff tests ported to tests in `ruff_db`. I think some other
existing ruff tests also cover parts of this refactor.
---------
Co-authored-by: Micha Reiser <micha@reiser.io>
## Summary
This PR fixes a bug that didn't return a response to the client if the
document snapshotting failed.
This is resolved by making sure that the server always creates the
document snapshot and embed the any failures inside the snapshot.
Closes: astral-sh/ty#798
## Test Plan
Using the test case as described in the linked issue:
https://github.com/user-attachments/assets/f32833f8-03e5-4641-8c7f-2a536fe2e270
This PR includes:
* Implemented core signature help logic
* Added new docstring method on Definition that returns a docstring for
function and class definitions
* Modified the display code for Signature that allows a signature string
to be broken into text ranges that correspond to each parameter in the
signature
* Augmented Signature struct so it can track the Definition for a
signature when available; this allows us to find the docstring
associated with the signature
* Added utility functions for parsing parameter documentation from three
popular docstring formats (Google, NumPy and reST)
* Implemented tests for all of the above
"Signature help" is displayed by an editor when you are typing a
function call expression. It is typically triggered when you type an
open parenthesis. The language server provides information about the
target function's signature (or multiple signatures), documentation, and
parameters.
Here is how this appears:
---------
Co-authored-by: UnboundVariable <unbound@gmail.com>
Co-authored-by: Micha Reiser <micha@reiser.io>
This PR implements a basic semantic token provider for ty's language
server. This allows for more accurate semantic highlighting / coloring
within editors that support this LSP functionality.
Here are screen shots that show how code appears in VS Code using the
"rainbow" theme both before and after this change.
The token types and modifier tags in this implementation largely mirror
those used in Microsoft's default language server for Python.
The implementation supports two LSP interfaces. The first provides
semantic tokens for an entire document, and the second returns semantic
tokens for a requested range within a document.
The PR includes unit tests. It also includes comments that document
known limitations and areas for future improvements.
---------
Co-authored-by: UnboundVariable <unbound@gmail.com>
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [notify](https://redirect.github.com/notify-rs/notify) |
workspace.dependencies | minor | `8.0.0` -> `8.1.0` |
---
> [!WARNING]
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---
### Release Notes
<details>
<summary>notify-rs/notify (notify)</summary>
###
[`v8.1.0`](https://redirect.github.com/notify-rs/notify/blob/HEAD/CHANGELOG.md#notify-810-2025-07-03)
[Compare
Source](https://redirect.github.com/notify-rs/notify/compare/notify-8.0.0...notify-8.1.0)
- FEATURE: added support for the [`flume`](https://docs.rs/flume) crate
- FIX: kqueue-backend: do not double unwatch top-level directory when
recursively unwatching
\[[#​683](https://redirect.github.com/notify-rs/notify/issues/683)]
- FIX: Return the crate error `PathNotFound` instead bubbling up the
std::io error
\[[#​685](https://redirect.github.com/notify-rs/notify/issues/685)]
- FIX: fix server hangs when trashing folders on Windows
\[[#​674](https://redirect.github.com/notify-rs/notify/issues/674)]
</details>
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## Summary
This PR is a collaboration with @AlexWaygood from our pairing session
last Friday.
The main goal here is removing `ruff_linter::message::OldDiagnostic` in
favor of
using `ruff_db::diagnostic::Diagnostic` directly. This involved a few
major steps:
- Transferring the fields
- Transferring the methods and trait implementations, where possible
- Converting some constructor methods to free functions
- Moving the `SecondaryCode` struct
- Updating the method names
I'm hoping that some of the methods, especially those in the
`expect_ruff_*`
family, won't be necessary long-term, but I avoided trying to replace
them
entirely for now to keep the already-large diff a bit smaller.
### Related refactors
Alex and I noticed a few refactoring opportunities while looking at the
code,
specifically the very similar implementations for
`create_parse_diagnostic`,
`create_unsupported_syntax_diagnostic`, and
`create_semantic_syntax_diagnostic`.
We combined these into a single generic function, which I then copied
into
`ruff_linter::message` with some small changes and a TODO to combine
them in the
future.
I also deleted the `DisplayParseErrorType` and `TruncateAtNewline` types
for
reporting parse errors. These were added in #4124, I believe to work
around the
error messages from LALRPOP. Removing these didn't affect any tests, so
I think
they were unnecessary now that we fully control the error messages from
the
parser.
On a more minor note, I factored out some calls to the
`OldDiagnostic::filename`
(now `Diagnostic::expect_ruff_filename`) function to avoid repeatedly
allocating
`String`s in some places.
### Snapshot changes
The `show_statistics_syntax_errors` integration test changed because the
`OldDiagnostic::name` method used `syntax-error` instead of
`invalid-syntax`
like in ty. I think this (`--statistics`) is one of the only places we
actually
use this name for syntax errors, so I hope this is okay. An alternative
is to
use `syntax-error` in ty too.
The other snapshot changes are from removing this code, as discussed on
[Discord](https://discord.com/channels/1039017663004942429/1228460843033821285/1388252408848847069):
34052a1185/crates/ruff_linter/src/message/mod.rs (L128-L135)
I think both of these are technically breaking changes, but they only
affect
syntax errors and are very narrow in scope, while also pretty
substantially
simplifying the refactor, so I hope they're okay to include in a patch
release.
## Test plan
Existing tests, with the adjustments mentioned above
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
## Summary
This PR updates Salsa to pull in Ibraheem's multithreading improvements (https://github.com/salsa-rs/salsa/pull/921).
## Performance
A small regression for single-threaded benchmarks is expected because
papaya is slightly slower than a `Mutex<FxHashMap>` in the uncontested
case (~10%). However, this shouldn't matter as much in practice because:
1. Salsa has a fast-path when only using 1 DB instance which is the
common case in production. This fast-path is not impacted by the changes
but we measure the slow paths in our benchmarks (because we use multiple
db instances)
2. Fixing the 10x slowdown for the congested case (multi threading)
outweights the downsides of a 10% perf regression for single threaded
use cases, especially considering that ty is heavily multi threaded.
## Test Plan
`cargo test`
## Summary
Extracts the vendored typeshed stubs lazily and caches them on the local
filesystem to support go-to in the LSP.
Resolves https://github.com/astral-sh/ty/issues/77.
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [get-size2](https://redirect.github.com/bircni/get-size2) |
workspace.dependencies | patch | `0.5.0` -> `0.5.1` |
---
> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.
---
### Release Notes
<details>
<summary>bircni/get-size2 (get-size2)</summary>
###
[`v0.5.1`](https://redirect.github.com/bircni/get-size2/blob/HEAD/CHANGELOG.md#051---2025-06-25)
[Compare
Source](https://redirect.github.com/bircni/get-size2/compare/0.5.0...0.5.1)
##### Bug Fixes
- correctly determine size for enums
([#​24](https://redirect.github.com/bircni/get-size2/issues/24)) -
([3c5bd18](3c5bd18cac))
- Nicolas
##### Miscellaneous Chores
- add top-level `heap_size` function
([#​25](https://redirect.github.com/bircni/get-size2/issues/25)) -
([f3b5e6e](f3b5e6e38c))
- Ibraheem Ahmed
##### Build
- update to newer cargo-verset to set dependency version automatically -
([b1154e4](b1154e4572))
- Nicolas
</details>
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## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
As discussed on Slack, there was an issue with the walltime metrics with
`divan`. The issue was fixed with the latest version of `cargo-codspeed`
and `codpseed-divan-compat`:
https://github.com/CodSpeedHQ/codspeed-rust/releases/tag/v3.0.0.
This PR updates all crates related to CodSpeed. A performance increase
of the following benchmarks is expected, as now the correct metric will
be used.
```
crates/ruff_benchmark/benches/ty_walltime.rs::multithreaded[pydantic]
crates/ruff_benchmark/benches/ty_walltime.rs::small[altair]
crates/ruff_benchmark/benches/ty_walltime.rs::small[freqtrade]
crates/ruff_benchmark/benches/ty_walltime.rs::small[pydantic]
crates/ruff_benchmark/benches/ty_walltime.rs::small[tanjun]
```
Once this is merged, we will update the historic data of the affected
benchmark on the CodSpeed UI, so that no false positives will appear.
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [clearscreen](https://redirect.github.com/watchexec/clearscreen) |
workspace.dependencies | patch | `4.0.1` -> `4.0.2` |
---
> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
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---
### Release Notes
<details>
<summary>watchexec/clearscreen (clearscreen)</summary>
###
[`v4.0.2`](https://redirect.github.com/watchexec/clearscreen/blob/HEAD/CHANGELOG.md#v402-2025-06-25)
[Compare
Source](https://redirect.github.com/watchexec/clearscreen/compare/v4.0.1...v4.0.2)
- **Deps:** Upgrade which from 7.0.2 to 8.0.0
([#​34](https://redirect.github.com/watchexec/clearscreen/issues/34))
-
([09bc029](09bc0299f4))
</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 | `0.5.7` -> `0.5.8` |
---
> [!WARNING]
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---
### Release Notes
<details>
<summary>indexmap-rs/ordermap (ordermap)</summary>
###
[`v0.5.8`](https://redirect.github.com/indexmap-rs/ordermap/blob/HEAD/RELEASES.md#058-2025-06-26)
[Compare
Source](https://redirect.github.com/indexmap-rs/ordermap/compare/0.5.7...0.5.8)
- Added `extract_if` methods to `OrderMap` and `OrderSet`, similar to
the
methods for `HashMap` and `HashSet` with ranges like `Vec::extract_if`.
- Added more `#[track_caller]` annotations to functions that may panic.
</details>
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This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [indexmap](https://redirect.github.com/indexmap-rs/indexmap) |
workspace.dependencies | minor | `2.9.0` -> `2.10.0` |
---
> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
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### Release Notes
<details>
<summary>indexmap-rs/indexmap (indexmap)</summary>
###
[`v2.10.0`](https://redirect.github.com/indexmap-rs/indexmap/blob/HEAD/RELEASES.md#2100-2025-06-26)
[Compare
Source](https://redirect.github.com/indexmap-rs/indexmap/compare/2.9.0...2.10.0)
- Added `extract_if` methods to `IndexMap` and `IndexSet`, similar to
the
methods for `HashMap` and `HashSet` with ranges like `Vec::extract_if`.
- Added more `#[track_caller]` annotations to functions that may panic.
</details>
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## Summary
I think this should be the last step before combining `OldDiagnostic`
and `ruff_db::Diagnostic`. We can't store a `NoqaCode` on
`ruff_db::Diagnostic`, so I converted the `noqa_code` field to an
`Option<String>` and then propagated this change to all of the callers.
I tried to use `&str` everywhere it was possible, so I think the
remaining `to_string` calls are necessary. I spent some time trying to
convert _everything_ to `&str` but ran into lifetime issues, especially
in the `FixTable`. Maybe we can take another look at that if it causes a
performance regression, but hopefully these paths aren't too hot. We
also avoid some `to_string` calls, so it might even out a bit too.
## Test Plan
Existing tests
---------
Co-authored-by: Micha Reiser <micha@reiser.io>
## Summary
Setting `TY_MEMORY_REPORT=full` will generate and print a memory usage
report to the CLI after a `ty check` run:
```
=======SALSA STRUCTS=======
`Definition` metadata=7.24MB fields=17.38MB count=181062
`Expression` metadata=4.45MB fields=5.94MB count=92804
`member_lookup_with_policy_::interned_arguments` metadata=1.97MB fields=2.25MB count=35176
...
=======SALSA QUERIES=======
`File -> ty_python_semantic::semantic_index::SemanticIndex`
metadata=11.46MB fields=88.86MB count=1638
`Definition -> ty_python_semantic::types::infer::TypeInference`
metadata=24.52MB fields=86.68MB count=146018
`File -> ruff_db::parsed::ParsedModule`
metadata=0.12MB fields=69.06MB count=1642
...
=======SALSA SUMMARY=======
TOTAL MEMORY USAGE: 577.61MB
struct metadata = 29.00MB
struct fields = 35.68MB
memo metadata = 103.87MB
memo fields = 409.06MB
```
Eventually, we should integrate these numbers into CI in some form. The
one limitation currently is that heap allocations in salsa structs (e.g.
interned values) are not tracked, but memoized values should have full
coverage. We may also want a peak memory usage counter (that accounts
for non-salsa memory), but that is relatively simple to profile manually
(e.g. `time -v ty check`) and would require a compile-time option to
avoid runtime overhead.
## Summary
Garbage collect ASTs once we are done checking a given file. Queries
with a cross-file dependency on the AST will reparse the file on demand.
This reduces ty's peak memory usage by ~20-30%.
The primary change of this PR is adding a `node_index` field to every
AST node, that is assigned by the parser. `ParsedModule` can use this to
create a flat index of AST nodes any time the file is parsed (or
reparsed). This allows `AstNodeRef` to simply index into the current
instance of the `ParsedModule`, instead of storing a pointer directly.
The indices are somewhat hackily (using an atomic integer) assigned by
the `parsed_module` query instead of by the parser directly. Assigning
the indices in source-order in the (recursive) parser turns out to be
difficult, and collecting the nodes during semantic indexing is
impossible as `SemanticIndex` does not hold onto a specific
`ParsedModuleRef`, which the pointers in the flat AST are tied to. This
means that we have to do an extra AST traversal to assign and collect
the nodes into a flat index, but the small performance impact (~3% on
cold runs) seems worth it for the memory savings.
Part of https://github.com/astral-sh/ty/issues/214.
## Summary
This PR deletes the `DiagnosticKind` type by inlining its three fields
(`name`, `body`, and `suggestion`) into three other diagnostic types:
`Diagnostic`, `DiagnosticMessage`, and `CacheMessage`.
Instead of deferring to an internal `DiagnosticKind`, both `Diagnostic`
and `DiagnosticMessage` now have their own macro-generated `AsRule`
implementations.
This should make both https://github.com/astral-sh/ruff/pull/18051 and
another follow-up PR changing the type of `name` on `CacheMessage`
easier since its type will be able to change separately from
`Diagnostic` and `DiagnosticMessage`.
## Test Plan
Existing tests
## 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
Source](https://redirect.github.com/BurntSushi/bstr/compare/1.11.3...1.12.0)
</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` |
---
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> 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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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Micha Reiser <micha@reiser.io>
## 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`
Andrew Gallant
Ibraheem Ahmed
Dylan
Brent Westbrook
Micha Reiser
renovate[bot]
Dhruv Manilawala
David Peter
Dan Parizher
Leandro Braga
Charlie Marsh
Aria Desires
Douglas Creager
UnboundVariable
Adrien Cacciaguerra
Alex Waygood
Carl Meyer
Zanie Blue
David Sherret
InSync
Hans