8767: implement range formatting r=matklad a=euclio
Fixes#7580.
This PR implements the `textDocument/rangeFormatting` request using `rustfmt`'s `--file-lines` option.
Still needs some tests. What I want to know is how I should handle the instability of the `--file-lines` option. It's still unstable in rustfmt, so it's only available on nightly, and needs a special flag to enable. Is there a way for `rust-analyzer` to detect if it's using nightly rustfmt, or for users to opt-in?
Co-authored-by: Andy Russell <arussell123@gmail.com>
8942: Add `library` semantic token modifier to items from other crates r=arzg a=arzg
Closes#5772.
A lot of code here is pretty repetitive; please let me know if you have any ideas how to improve it, or whether it’s fine as-is.
Side-note: How can I add tests for this? I don’t see a way for the test Rust code in `test_highlighting` to reference other crates to observe the new behaviour.
Co-authored-by: Aramis Razzaghipour <aramisnoah@gmail.com>
8873: Implement import-granularity guessing r=matklad a=Veykril
This renames our `MergeBehavior` to `ImportGranularity` as rustfmt has it as the purpose of them are basically the same. `ImportGranularity::Preserve` currently has no specific purpose for us as we don't have an organize imports assist yet, so it currently acts the same as `ImportGranularity::Item`.
We now try to guess the import style on a per file basis and fall back to the user granularity setting if the file has no specific style yet or where it is ambiguous. This can be turned off by setting `import.enforceGranularity` to `true`.
Closes https://github.com/rust-analyzer/rust-analyzer/issues/8870
Co-authored-by: Lukas Tobias Wirth <lukastw97@gmail.com>
The new extension allows filtering of workspace symbool lookup
results by search scope or search kind.
Filtering can be configured in 3 different ways:
- The '#' or '*' markers can be added inline with the symbol lookup
query.
The '#' marker means symbols should be looked up in the current
workspace and any dependencies. If not specified, only current
workspace is considered.
The '*' marker means all kinds of symbols should be looked up
(types, functions, etc). If not specified, only type symbols are
returned.
- Each LSP request can take an optional search_scope or search_kind
argument query parameter.
- Finally there are 2 global config options that can be set for all
requests served by the active RA instance.
Add support for setting the global config options to the VSCode
extension.
The extension does not use the per-request way, but it's useful for
other IDEs.
The latest version of VSCode filters out the inline markers, so
currently the only reasonable way to use the new functionality is
via the global config.
8795: Allow semantic tokens for strings to be disabled r=matklad a=djrenren
Fixes https://github.com/rust-analyzer/rust-analyzer/issues/7111
Pretty straightforward change, but open to any suggestions if there's a more recommended testing strategy than what I went with.
Co-authored-by: John Renner <john@jrenner.net>
8674: fix for #8664: Emit folding ranges for multi-line where clauses r=matklad a=m5tfi
#8664
I added a test that assert folding multi-line where clauses while leaving single lined one. Please, let me know if the code needs further improvements.
Co-authored-by: m5tfi <72708423+m5tfi@users.noreply.github.com>
According to the spec we should return ServerNotInitialized if the server is waiting for an initialize request and something else comes in.
Upgrading to lsp-server 0.5.1 will do this and retry until the initialize request comes in.
Fixes#8581
8540: Prevent being able to rename items that are not part of the workspace r=Veykril a=Veykril
This change causes renames that happen on items coming from crates outside the workspace to fail. I believe this should be the right approach, but usage of cargo's workspace might not be entirely correct for preventing these kinds of refactoring from touching things they shouldn't. I'm not entirely sure?
cc #6623, this is one of the bigger footguns when it comes to refactoring, especially in combination with import aliases people tend to rename items coming from a crates dependency which this prevents.
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
8354: Distinguishing between different operators in semantic highlighting r=matklad a=chetankhilosiya
Co-authored-by: Chetan Khilosiya <chetan.khilosiya@gmail.com>
Conceptually, using a *message* here is wrong, because this is a
"status", rather than "point in time" thing. But statuses are an LSP
extension, while messages are stable. As a compromise, send message only
for more critical `metadata` failures, and only once per state change.
8410: Use CompletionTextEdit::InsertAndReplace if supported by the client r=Veykril a=Veykril
Fixes#8404, Fixes#3130
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
8375: feat: show errors from `cargo metadata` and initial `cargo check` in the status bar r=matklad a=matklad
bors r+
🤖
Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>
We have a CLI for benchmarking, but no one actually uses it it seems.
Let's try switching to "internal" benchmarks, implemented as rust tests.
They should be easier to "script" to automate tracking of perf
regressions.
8132: Add `'` to trigger_characters, allowing more direct lifetime completions r=Veykril a=Veykril
Fixes having to type a character after `'` to complete lifetimes and labels
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
8021: Enable searching for builtin types r=matklad a=Veykril
Not too sure how useful this is for reference search overall, but for completeness sake it should be there
![image](https://user-images.githubusercontent.com/3757771/111132711-f69db600-8579-11eb-8c90-22fd6862d11f.png)
Also enables document highlighting for them.
8022: some clippy::performance fixes r=matklad a=matthiaskrgr
use vec![] instead of Vec::new() + push()
avoid redundant clones
use chars instead of &str for single char patterns in ends_with() and starts_with()
allocate some Vecs with capacity to avoid unnecessary resizing
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
Co-authored-by: Matthias Krüger <matthias.krueger@famsik.de>
use vec![] instead of Vec::new() + push()
avoid redundant clones
use chars instead of &str for single char patterns in ends_with() and starts_with()
allocate some Vecs with capacity to avoid unneccessary resizing
7873: Consider unresolved qualifiers during flyimport r=matklad a=SomeoneToIgnore
Closes https://github.com/rust-analyzer/rust-analyzer/issues/7679
Takes unresolved qualifiers into account, providing better completions (or none, if the path is resolved or do not match).
Does not handle cases when both path qualifier and some trait has to be imported: there are many extra issues with those (such as overlapping imports, for instance) that will require large diffs to address.
Also does not do a fuzzy search on qualifier, that requires some adjustments in `import_map` for better queries and changes to the default replace range which also seems relatively big to include here.
![qualifier_completion](https://user-images.githubusercontent.com/2690773/110040808-0af8dc00-7d4c-11eb-83db-65af94e843bb.gif)
7933: Improve compilation speed r=matklad a=matklad
bors r+
🤖
Co-authored-by: Kirill Bulatov <mail4score@gmail.com>
Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>
7891: Improve handling of rustc_private r=matklad a=DJMcNab
This PR changes how `rust-analyzer` handles `rustc_private`. In particular, packages now must opt-in to using `rustc_private` in `Cargo.toml`, by adding:
```toml
[package.metadata.rust-analyzer]
rustc_private=true
```
This means that depending on crates which also use `rustc_private` will be significantly improved, since their dependencies on the `rustc_private` crates will be resolved properly.
A similar approach could be used in #6714 to allow annotating that your package uses the `test` crate, although I have not yet handled that in this PR.
Additionally, we now only index the crates which are transitive dependencies of `rustc_driver` in the `rustcSource` directory. This should not cause any change in behaviour when using `rustcSource: "discover"`, as the source used then will only be a partial clone. However, if `rustcSource` pointing at a local checkout of rustc, this should significantly improve the memory usage and lower indexing time. This is because we avoids indexing all crates in `src/tools/`, which includes `rust-analyzer` itself.
Furthermore, we also prefer named dependencies over dependencies from `rustcSource`. This ensures that feature resolution for crates which are depended on by both `rustc` and your crate uses the correct set for analysing your crate.
See also [introductory zulip stream](https://rust-lang.zulipchat.com/#narrow/stream/185405-t-compiler.2Fwg-rls-2.2E0/topic/Fixed.20crate.20graphs.20and.20optional.20builtin.20crates/near/229086673)
I have tested this in [priroda](https://github.com/oli-obk/priroda/), and it provides a significant improvement to the development experience (once I give `miri` the required data in `Cargo.toml`)
Todo:
- [ ] Documentation
This is ready to review, and I will add documentation if this would be accepted (or if I get time to do so anyway)
Co-authored-by: Daniel McNab <36049421+DJMcNab@users.noreply.github.com>
7335: added region folding r=matklad a=LucianoBestia
Regions of code that you'd like to be folded can be wrapped with `// #region` and `// #endregion` line comments.
This is called "Region Folding". It is originally available for many languages in VSCode. But Rust-analyzer has its own folding function and this is missing.
With this Pull Request I am suggesting a simple solution.
The regions are a special kind of comments, so I added a bit of code in the comment folding function.
The regex to match are: `^\s*//\s*#?region\b` and `^\s*//\s*#?endregion\b`.
The number of space characters is not important. There is an optional # character. The line can end with a name of the region.
Example:
```rust
// 1. some normal comment
// region: test
// 2. some normal comment
calling_function(x,y);
// endregion: test
```
I added a test for this new functionality in `folding_ranges.rs`.
Please, take a look and comment.
I found that these exact regexes are already present in the file `language-configuration.json`, but I don't find a way to read this configuration. So my regex is hardcoded in the code.
7691: Suggest name in extract variable r=matklad a=cpud36
Generate better default name in extract variable assist as was mentioned in issue #1587
# Currently supported
(in order of declining precedence)
1. Expr is argument to a function; use corresponding parameter name
2. Expr is result of a function or method call; use this function/method's name
3. Use expr type name (if possible)
4. Fallback to `var_name` otherwise
# Showcase
![generate_derive_variable_name_from_method](https://user-images.githubusercontent.com/4218373/108013304-72105400-701c-11eb-9f13-eec52e74d0cc.gif)
![generate_derive_variable_name_from_param](https://user-images.githubusercontent.com/4218373/108013305-72a8ea80-701c-11eb-957e-2214f7f005de.gif)
# Questions
* Should we more aggressively strip known types? E.g. we already strip `&T -> T`; should we strip `Option<T> -> T`, `Result<T, E> -> T`, and others?
* Integers and floats use `var_name` by default. Should we introduce a name, like `i`, `f` etc?
* Can we return a list and suggest a name when renaming(like IntelliJ does)?
* Should we add counters to remove duplicate variables? E.g. `type`, `type1`, type2`, etc.
Co-authored-by: Luciano Bestia <LucianoBestia@gmail.com>
Co-authored-by: Luciano <31509965+LucianoBestia@users.noreply.github.com>
Co-authored-by: Vladyslav Katasonov <cpud47@gmail.com>
Reading through the code for diagnostics and observing debug logs, I noticed
that diagnostics are transmitted after every change for every opened file,
even if they haven't changed (especially visible for files with no diagnostics).
This change avoids marking files as "changed" if diagnostics are the same to what
was already sent before. This will only work if diagnostics are always produced in
the same order, but from my limited testing it seems this is the case.
7690: Extract `fn load_workspace(…)` from `fn load_cargo(…)` r=matklad a=regexident
Unfortunately in https://github.com/rust-analyzer/rust-analyzer/pull/7595 I forgot to `pub use` (rather than just `use`) the newly introduced `LoadCargoConfig`.
So this PR fixes this now.
It also:
- splits up `fn load_cargo` into a "workspace loading" and a "project loading" phase
- adds a `progress: &dyn Fn(String)` to allow third-parties to provide CLI progress updates, too
The motivation behind both of these is the fact that rust-analyzer currently does not support caching.
As such any third-party making use of `ra_ap_…` needs to providing a caching layer itself.
Unlike for rust-analyzer itself however a common use-pattern of third-parties is to analyze a specific target (`--lib`/`--bin <BIN>`/…) from a specific package (`--package`). The targets/packages of a crate can be obtained via `ProjectWorkspace::load(…)`, which currently is performed inside of `fn load_cargo`, effectively making the returned `ProjectWorkspace` inaccessible to the outer caller. With this information one can then provide early error handling via CLI (in case of ambiguities or invalid arguments, etc), instead of `fn load_cargo` failing with a possibly obscure error message. It also allows for annotating the persisted caches with its specific associated package/target selector and short-circuit quickly if a matching cache is found on disk, significantly cutting load times.
Before:
```rust
pub struct LoadCargoConfig {
pub cargo_config: &CargoConfig,
pub load_out_dirs_from_check: bool,
pub with_proc_macro: bool,
}
pub fn load_cargo(
root: &Path,
config: &LoadCargoConfig
) -> Result<(AnalysisHost, vfs::Vfs)> {
// ...
}
```
After:
```rust
pub fn load_workspace(
root: &Path,
config: &CargoConfig,
progress: &dyn Fn(String),
) -> Result<ProjectWorkspace> {
// ...
}
pub struct LoadCargoConfig {
pub load_out_dirs_from_check: bool,
pub with_proc_macro: bool,
}
pub fn load_cargo(
ws: ProjectWorkspace,
config: &LoadCargoConfig,
progress: &dyn Fn(String),
) -> Result<(AnalysisHost, vfs::Vfs)> {
// ...
}
```
Co-authored-by: Vincent Esche <regexident@gmail.com>
7657: utf8 r=matklad a=matklad
- Prepare for utf-8 offsets
- reduce code duplication in tests
- Make utf8 default, implement utf16 in terms of it
- Make it easy to add additional context for offset conversion
- Implement utf8 offsets
closes#7453
Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>