feat: Introduce workspace `rust-analyzer.toml`s
In order to globally configure a project it was, prior to this PR, possible to have a `ratoml` at the root path of a project. This is not the case anymore. Instead we now let ratoml files that are placed at the root of any workspace have a new scope called `workspace`. Although there is not a difference between a `workspace` scope and and a `global` scope, future PRs will change that.
feat: Use spans for builtin and declarative macro expansion errors
This should generally improve some error reporting for macro expansion errors. Especially for `compile_error!` within proc-macros
feat(ide-completion): explictly show `async` keyword on `impl trait` methods
OLD:
<img width="676" alt="image" src="https://github.com/user-attachments/assets/f6fa626f-6b6d-4c22-af27-b0755e7a6bf8">
Now:
<img width="684" alt="image" src="https://github.com/user-attachments/assets/efbaac0e-c805-4dd2-859d-3e44b2886dbb">
---
This is an preparation for https://github.com/rust-lang/rust-analyzer/issues/17719.
```rust
use std::future::Future;
trait DesugaredAsyncTrait {
fn foo(&self) -> impl Future<Output = usize> + Send;
fn bar(&self) -> impl Future<Output = usize> + Send;
}
struct Foo;
impl DesugaredAsyncTrait for Foo {
fn foo(&self) -> impl Future<Output = usize> + Send {
async { 1 }
}
//
async fn bar(&self) -> usize {
1
}
}
fn main() {
let fut = Foo.bar();
fn _assert_send<T: Send>(_: T) {}
_assert_send(fut);
}
```
If we don't distinguish `async` or not. It would be confusing to generate sugared version `async fn foo ....` and original form `fn foo` for `async fn in trait` that is defined in desugar form.
fix: let glob imports override other globs' visibility
Follow up to #14930Fixes#11858Fixes#14902Fixes#17704
I haven't reworked the code here at all - I don't feel confident in the codebase to do so - just rebased it onto the current main branch and fixed conflicts.
I'm not _entirely_ sure I understand the structure of the `check` function in `crates/hir-def/src/nameres` tests. I think the change to the test expectation from #14930 is correct, marking the `crate::reexport::inner` imports with `i`, and I understand it to mean there's a specific token in the import that we can match it to (in this case, `Trait`, `function` and `makro` of `pub use crate::defs::{Trait, function, makro};` respectively), but I had some trouble understanding the meaning of the different parts of `PerNs` to be sure.
Does this make sense?
I tested building and using RA locally with `cargo xtask install` and after this change the documentation for `arrow_array::ArrowPrimitiveType` seems to be picked up correctly!
And that is due to a case where we have two ratomls in a source root, one of which
is a `workspace_ratoml` and the other one is simple old ratoml. Since we are not checking to see if
the source root is already populated with workspace ratoml, this test fails. Due to principles of clear
code I believe it is reasonable to not have two HashMaps that are almost for the exact same thing.
So next commit should remove `workspace_ratoml` and merge it with `krate_ratoml`s.
The issue occurs because in some configurations of traits where one of them has Deref as a supertrait, RA's type inference algorithm fails to resolve the Deref::Target type, and instead uses a TyKind::BoundVar (i.e. an unknown type). This "autoderefed" type then incorrectly acts as if it implements all traits in scope.
The fix is to re-apply the same sanity-check that is done in iterate_method_candidates_with_autoref(), that is: don't try to resolve methods on unknown types. This same sanity-check is now done on each autoderefed type for which trait methods are about to be checked. If the autoderefed type is unknown, then the iterating of the trait methods for that type is skipped.
Includes a unit test that only passes after applying the fixes in this commit.
Includes a change to the assertion count in test syntax_highlighting::tests::benchmark_syntax_highlighting_parser as suggested by Lukas Wirth during review.
Includes a change to the sanity-check code as suggested by Florian Diebold during review.
feat: add preliminary support for `+ use<..>` `precise_capturing` syntax
## Summary
This PR adds basic support for the following syntax.
```rs
fn captures<'a: 'a, 'b: 'b, T>() -> impl Sized + use<'b, T> {}
// ~~~~~~~~~~~~~~~~~~~~~~~
// This opaque type does not capture `'a`.
fn outlives<'o, T: 'o>(_: T) {}
fn caller<'o, 'a, 'b: 'o, T: 'o>() {
// ~~
// ^ Note that we don't need `'a: 'o`.
outlives::<'o>(captures::<'a, 'b, T>());
}
```
Related to #17598
internal: add more output to the status command
Bit of a lazy change, but this is was pretty handy. I think I should clean up the configuration into something a bit more legible (maybe serialize as JSON?), but I think this is a good enough starting point that we might as well start asking people for it in issue reports.
Add method `Impl::all_in_module(…)` for allowing more localized querying
This PR is motivated by an [outside use](https://github.com/regexident/cargo-modules) of the `ra_ap_hir` crate that would benefit from being able to more efficiently query for all impls of a given module (instead of having to query for its parent crate's impls and then filtering on `impl_hir.module(db) == module_hir`).
I have the suspicion that the code as is won't quite work for file-level modules, since those don't have a block, afaict, but with all the crate-rename and version shenanigans around the `ra_ap_` release process I haven't yet been able to figure out how to patch a `ra_ap_` dependency from a third-party crate (let alone how to test this from inside of `rust-analyzer`), so haven't been able to actually run and test this. 😔
Any hints on how to make this (i.e. the code itself, as well as the testing) work are more than welcome!
chore: remove `UnindexinedProject` notification
This PR is split out from https://github.com/rust-lang/rust-analyzer/pull/17246/ (and contains its changes, which is a little annoying from a review perspective...). I'd like to land this change a week or so after #17246 lands in order to give any users of the unindexed project notification time to adopt migrate.
minor : fixes for ratoml module
This is a follow-up PR to #17058.
- Parse errors are reflected as such by defining a new variant called `ConfigError::ParseError`
- New error collection has been added to store config level agnostic errors.
EDIT : Some things that this PR promised to solve are removed and will be addressed by other PRs
LRU `body_with_source_map` query
This query is being invalidated all the time anyways (we have an extra query on top of it for the body incrementality that is not source dependent), so there is little reason to keep these around all the time when only some IDE features are interested in them.
feat: go-to-def and find-references on control-flow keywords
fix#17517.
This PR implements **go-to-definition** and **find-references** functionalities for control flow keywords, which is similar to the behaviors in the `highlight-related` module. Besides, this PR also fixes some incorrect behaviors in `highlight-related`.
## Changes
1. **Support for go-to-definition on control flow keywords**:
This PR introduces functionality allowing users to navigate on the definition of control flow keywords (`return`, `break`, `continue`).
Commit: 2a3244ee147f898dd828c06352645ae1713c260f..7391e7a608634709db002a4cb09229de4d12c056.
2. **Bug fixes and refactoring in highlight-related**:
- **Handling return/break/continue within try_blocks**:
This PR adjusted the behavior of these keywords when they occur within `try_blocks`. When encounter these keywords, the program should exit the outer function or loop which containing the `try_blocks`, rather than the `try_blocks` itself; while the `?` will cause the program to exit `try_blocks`.
Commit: 59d697e807f0197f59814b37dca1563959da4aa1.
- **Support highlighting keywords in macro expansion for highlight-related**:
Commit: 88df24f01727c23a667a763ee3ee0cec22d5ad52.
- Detailed description for the bug fixes
+ The previous implementation of `preorder_expr` incorrectly treated `try_blocks` as new contexts, thereby r-a will not continue to traverse inner `return` and `break/continue` statements. To resolve this, a new function `preorder_expr_with_ctx_checker` has been added, allowing users to specify which expressions to skip.
* For example, when searching for the `?` in the context, r-a should skip `try_blocks` where the `?` insides just works for `try_blocks`. But when search for the `return` keyword, r-a should collect both the `return` keywords inside and outside the `try_blocks`
+ Thus, this PR added `WalkExpandedExprCtx` (builder pattern). It offers the following improvements: customizable context skipping, maintenance of loop depth (for `break`/`continue`), and handling macro expansion during traversal.
3. **Support for find-references on control flow keywords**:
This PR enables users to find all references to control flow keywords.
Commit: 9202a33f81218fb9c2edb5d42e6b4de85b0323a8.
Fix more path resolution for included submodules
Now with more comprehensive testing! This adds tests for includes within modules. Previous testing was not comprehensive enough since submodules that use `include!` didn't actually work either! The `ModDir` used for resolving mods relative to included files has to be `ModDir::root()`. The original test just so happened to put the submodules in the root which made this work, but if you put the `include!` inside a `mod` block it didn't work.
With this change, when collecting a macro expansion, if the macro call is an `include!`, we use the `ModDir::root()` instead of the current module we're in.
- Parse errors are reflected as such by defining a new variant called `ConfigError::ParseError`
- New error collection has been added to store config level agnostic errors.
Prefer standard library paths over shorter extern deps re-exports
This should generally speed up path finding for std items as we no longer bother looking through all external dependencies. It also makes more sense to prefer importing std items from the std dependencies directly.
Fixes https://github.com/rust-lang/rust-analyzer/issues/17540
Fix path resolution for child mods of those expanded by `include!`
Child modules wouldn't use the correct candidate paths due to a branch that doesn't seem to be doing what it's intended to do. Removing the branch fixes the problem and all existing test cases pass.
Having no knowledge of how any of this works, I believe this fixes#17645. Using another test that writes the included mod directly into `lib.rs` instead, I found the difference can be traced to the candidate files we use to look up mods. A separate branch for if the file comes from an `include!` macro doesn't take into account the original mod we're contained within:
```rust
None if file_id.macro_file().map_or(false, |it| it.is_include_macro(db.upcast())) => {
candidate_files.push(format!("{}.rs", name.display(db.upcast())));
candidate_files.push(format!("{}/mod.rs", name.display(db.upcast())));
}
```
I'm not sure why this branch exists. Tracing the branch back takes us to 3bb9efb but it doesn't say *why* the branch was added. The test case that was added in this commit passes with the branch removed, so I think it's just superfluous at this point.
Child modules wouldn't use the correct candidate paths due to a branch that doesn't seem to be doing what it's intended to do. Removing the branch fixes the problem and all existing test cases pass.
fix: Panic in debug profile for tuple deconstruct with arity mismatch
Fixes#17585, which doesn't affect daily use cases but quite annoying in development of r-a itself like writing tests.
This PR applies similar approach as in #17534, skipping match usefulness check for patterns containing errors
The commands `editor.action.triggerParameterHints` and
`editor.action.rename` are now renamed to
`rust-analyzer.triggerParameterHints` and `rust-analyzer.rename`
This change helps make it clear that these commands are specific to
rust-analyzer and not part of the default set of commands provided by
VSCode.
Fixes: https://github.com/rust-lang/rust-analyzer/issues/17644
Avoid ref when using format! in compiler
Clean up a few minor refs in `format!` macro, as it has a performance cost. Apparently the compiler is unable to inline `format!("{}", &variable)`, and does a run-time double-reference instead (format macro already does one level referencing). Inlining format args prevents accidental `&` misuse.
See https://github.com/rust-lang/rust-clippy/issues/10851
Some more small salsa memory improvements
This does limit our lru limits to 2^16 but if you want to set them higher than that you might as well not set them at all. Also makes `LRU` opt-in per query now, allowing us to drop all the unnecessary LRU stuff for most queries
Clean up a few minor refs in `format!` macro, as it has a performance cost. Apparently the compiler is unable to inline `format!("{}", &variable)`, and does a run-time double-reference instead (format macro already does one level referencing). Inlining format args prevents accidental `&` misuse.
feature: teach rust-analyzer to discover `linked_projects`
This PR's been a long-time coming, but like the title says, it introduces server-side project discovery and removes the extension hooks I previously introduced. I don't think this PR is ready to land, but here are the things I'm feeling squishy about:
- I don't think I like the idea of introducing the `cargo-metadata` command-but-for-everything-else in the `flycheck` module, but the progress reporting infrastructure was too convenient to pass up. Happy to move it elsewhere.
Here are the things I _know_ I need to change:
- For progress reporting, I'm extracting from a `serde_json::Value` that corresponds to `tracing_subsciber::fmt::Layer`'s JSON output. I'd like to make this a bit more structured/documented than the current nonsense I wrote.
- The progress reporting currently hardcodes "Buck"; it should be deriving that from the previously mentioned more-structured-output.
- This doesn't handle *reloading* when a corresponding buildfile is changed. It should be doing that.
<details>
<summary>Anyway, here's a video of rust-analyzer discovering a Buck target.</summary>
https://github.com/rust-lang/rust-analyzer/assets/2067774/be6cd9b9-2c9a-402d-847f-05f860a91df1
</details>
feat: Add incorrect case diagnostics for enum variant fields and all variables/params
Updates the incorrect case diagnostic to check:
1. Fields of enum variants. Example:
```rust
enum Foo {
Variant { nonSnake: u8 }
}
```
2. All variable bindings, instead of just let bindings and certain match arm patters. Examples:
```rust
match 1 { nonSnake => () }
match 1 { nonSnake @ 1 => () }
match 1 { nonSnake1 @ nonSnake2 => () } // slightly cursed, but these both introduce new
// bindings that are bound to the same value.
const ONE: i32 = 1;
match 1 { nonSnake @ ONE } // ONE is ignored since it is not a binding
match Some(1) { Some(nonSnake) => () }
struct Foo { field: u8 }
match (Foo { field: 1 } ) {
Foo { field: nonSnake } => ();
}
struct Foo { nonSnake: u8 } // diagnostic here, at definition
match (Foo { nonSnake: 1 } ) { // no diagnostic here...
Foo { nonSnake } => (); // ...or here, since these are not where the name is introduced
}
for nonSnake in [] {}
struct Foo(u8);
for Foo(nonSnake) in [] {}
```
3. All parameter bindings, instead of just top-level binding identifiers. Examples:
```rust
fn func(nonSnake: u8) {} // worked before
struct Foo { field: u8 }
fn func(Foo { field: nonSnake }: Foo) {} // now get diagnostic for nonSnake
```
This is accomplished by changing the way binding identifier patterns are filtered:
- Previously, all binding idents were skipped, except a few classes of "good" binding locations that were checked.
- Now, all binding idents are checked, except field shorthands which are skipped.
Moving from a whitelist to a blacklist potentially makes the analysis more brittle:
If new pattern types are added in the future where ident pats don't introduce new names, then they may incorrectly create diagnostics.
But the benefit of the blacklist approach is simplicity: I think a whitelist approach would need to recursively visit patterns to collect renaming candidates?
Trigger VSCode to rename after extract variable assist is applied
When the user applies the "Extract Variable" assist, the cursor is
positioned at the newly inserted variable. This commit adds a command
to the assist that triggers the rename action in VSCode. This way, the
user can quickly rename the variable after applying the assist.
Fixes part of: #17579https://github.com/user-attachments/assets/4cf38740-ab22-4b94-b0f1-eddd51c26c29
I haven't yet looked at the module or function extraction assists yet.
use "bootstrap" instead of "rustbuild" in comments and docs
Let's stick with the single name "bootstrap" to refer to the bootstrap project to avoid confusion. This should make it clearer, especially for new contributors.
When the user applies the "Extract Variable" assist, the cursor is
positioned at the newly inserted variable. This commit adds a command
to the assist that triggers the rename action in VSCode. This way, the
user can quickly rename the variable after applying the assist.
Fixes part of: #17579
feat: do not add new enum if it already exists
## Summary
This PR introduces a check for the existence of another enum within the current scope, and if it exist, we skip `add_enum_def`.
## Why?
Currently, when using the `bool_to_enum` assist more than once, it is possible to add multiple enum definitions. For example, the following snippet,
```rs
#[derive(PartialEq, Eq)]
enum Bool {
True,
False,
}
fn main() {
let a = Bool::True;
let b = true;
println!("Hello, world!");
}
```
will be transformed into,
```rs
#[derive(PartialEq, Eq)]
enum Bool {
True,
False,
}
#[derive(PartialEq, Eq)]
enum Bool {
True,
False,
}
fn main() {
let a = Bool::True;
let b = Bool::True;
println!("Hello, world!");
}
```
This can be annoying for users to clean up.
Add `f16` and `f128` support
Adds `f16` and `f128` support, using the `rustc_apfloat` library (also used by `rustc`) for parsing/arithmetic/displaying since the types aren't stable yet so can't be used by rust-analyzer itself.
Issue: #17451
feat: add inlay hints for generic parameters
fixes#11091
By default, only hints for const generic parameters are shown, and this can be configured through `rust-analyzer.inlayHints.genericParameterHints.enable`.
Probably needs more testing.
Make casts of pointers to trait objects stricter
This is an attempt to `fix` https://github.com/rust-lang/rust/issues/120222 and https://github.com/rust-lang/rust/issues/120217.
This is done by adding restrictions on casting pointers to trait objects.
Before this PR the rules were as follows:
> When casting `*const X<dyn A>` -> `*const Y<dyn B>`, principal traits in `A` and `B` must refer to the same trait definition (or no trait).
With this PR the rules are changed to
> When casting `*const X<dyn Src>` -> `*const Y<dyn Dst>`
> - if `Dst` has a principal trait `DstP`,
> - `Src` must have a principal trait `SrcP`
> - `dyn SrcP` and `dyn DstP` must be the same type (modulo the trait object lifetime, `dyn T+'a` -> `dyn T+'b` is allowed)
> - Auto traits in `Dst` must be a subset of auto traits in `Src`
> - Not adhering to this is currently a FCW (warn-by-default + `FutureReleaseErrorReportInDeps`), instead of an error
> - if `Src` has a principal trait `Dst` must as well
> - this restriction will be removed in a follow up PR
This ensures that
1. Principal trait's generic arguments match (no `*const dyn Tr<A>` -> `*const dyn Tr<B>` casts, which are a problem for [#120222](https://github.com/rust-lang/rust/issues/120222))
2. Principal trait's lifetime arguments match (no `*const dyn Tr<'a>` -> `*const dyn Tr<'b>` casts, which are a problem for [#120217](https://github.com/rust-lang/rust/issues/120217))
3. No auto traits can be _added_ (this is a problem for arbitrary self types, see [this comment](https://github.com/rust-lang/rust/pull/120248#discussion_r1463835350))
Some notes:
- We only care about the metadata/last field, so you can still cast `*const dyn T` to `*const WithHeader<dyn T>`, etc
- The lifetime of the trait object itself (`dyn A + 'lt`) is not checked, so you can still cast `*mut FnOnce() + '_` to `*mut FnOnce() + 'static`, etc
- This feels fishy, but I couldn't come up with a reason it must be checked
The diagnostics are currently not great, to say the least, but as far as I can tell this correctly fixes the issues.
cc `@oli-obk` `@compiler-errors` `@lcnr`
Add an option to use "::" for the external crate prefix.
Fixes#11823 .
Hi I'm very new to rust-analyzer and not sure how the review process are. Can somebody take a look at this PR? thanks!
internal: Clean up runnable lsp extension
This feels like a natural addition to me, and also allows us to drop the expect-test hardcoding from the extension. Additionally, `cargoExtraArgs` is pointless, all the client will do is merge it with `cargoArgs` so the server can do that instead of delegating that to the client.
Improve dead code analysis
Fixes#120770
1. check impl items later if self ty is private although the trait method is public, cause we must use the ty firstly if it's private
2. mark the adt live if it appears in pattern, like generic argument, this implies the use of the adt
3. based on the above, we can handle the case that private adts impl Default, so that we don't need adding rustc_trivial_field_reads on Default, and the logic in should_ignore_item
r? ``@pnkfelix``
fix: Don't emit semantic diagnostics in files with a lot of syntax errors
These will only add to the noise when something very unexpected breaks or where parser recovery fails to kick in.
do not normalize `use foo::{self}` to `use foo`
It changes behaviour and can cause collisions. E.g. for the following snippet
```rs
mod foo {
pub mod bar {}
pub const bar: i32 = 8;
}
// transforming the below to `use foo::bar;` causes the error:
//
// the name `bar` is defined multiple times
use foo::bar::{self};
const bar: u32 = 99;
fn main() {
let local_bar = bar;
}
```
we still normalize
```rs
use foo::bar;
use foo::bar::{self};
```
to `use foo::bar;` because this cannot cause collisions.
See: https://github.com/rust-lang/rust-analyzer/pull/17140#issuecomment-2079189725
