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What happens here is that we lower `: ` to a missing expression, and
then correctly record that the corresponding field expression resolves
to a specific field. Where we fail is in the mapping of syntax to this
missing expression. Doing it via `ast_field.expr()` fails, as that
expression is `None`. Instead, we go in the opposite direcition and ask
each lowered field about its source.
This works, but has wrong complexity `O(N)` and, really, the
implementation is just too complex. We need some better management of
data here.
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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 <[email protected]>
Co-authored-by: Matthias Krüger <[email protected]>
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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
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StructureNodeKind is a type which is specific to a particular feature,
file_structure. It shouldn't be in the "code shared by all ide features"
part.
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7975: Provide regions in file structure r=ivan770 a=ivan770
Closes #7913
https://user-images.githubusercontent.com/14003886/110819163-96b3c080-8296-11eb-993e-a7cdb574a12d.mp4
Co-authored-by: ivan770 <[email protected]>
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7966: Diagnose files that aren't in the module tree r=jonas-schievink a=jonas-schievink
Fixes https://github.com/rust-analyzer/rust-analyzer/issues/6377
I'm not sure if this is the best way to do this. It will cause false positives for all `include!`d files (though I'm not sure how much IDE functionality we have for these).
Co-authored-by: Jonas Schievink <[email protected]>
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7799: Related tests r=matklad a=vsrs
![tests](https://user-images.githubusercontent.com/62505555/109397453-a9013680-7947-11eb-8b11-ac03079f7645.gif)
This adds an ability to look for tests for the item under the cursor: function, constant, data type, etc
The LSP part is bound to change. But the feature itself already works and I'm looking for a feedback :)
Co-authored-by: vsrs <[email protected]>
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7958: Avoid double text edits when renaming mod declaration r=matklad a=Veykril
Closes https://github.com/rust-analyzer/rust-analyzer/issues/7916
See https://github.com/microsoft/vscode-languageserver-node/issues/752 for context
Co-authored-by: Lukas Wirth <[email protected]>
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7850: Don't add space when joining line to opening quote r=matklad a=matklad
bors r+
🤖
Co-authored-by: Aleksey Kladov <[email protected]>
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7795: Show docs on hover for keywords and primitives r=matklad a=Veykril
![lAWFadkziX](https://user-images.githubusercontent.com/3757771/109369534-eeb4f500-789c-11eb-8f2b-2f9c4e129de3.gif)
It's a bit annoying that this requires the `SyntaxNode` and `Semantics` to be pulled through `hover_for_definition` just so we can get the `std` crate but I couldn't think of a better way.
Co-authored-by: Lukas Wirth <[email protected]>
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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 <[email protected]>
Co-authored-by: Luciano <[email protected]>
Co-authored-by: Vladyslav Katasonov <[email protected]>
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Co-authored-by: Lukas Wirth <[email protected]>
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7778: Fix lowering trailing self paths in UseTrees r=Veykril a=Veykril
Noticed that hovering over `self` in a use tree like `use foo::bar::{self}` showing documentation and such for the current module instead of `bar`.
Co-authored-by: Lukas Wirth <[email protected]>
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