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4358: add if let and while let postfix for Option and Result #4348 r=matklad a=bnjjj
close #4348
I also added `while let` for iterator or stream it could be useful
![iflet](https://user-images.githubusercontent.com/5719034/81278000-676c6b80-9055-11ea-87ad-6b8476dd983f.gif)
Co-authored-by: Benjamin Coenen <[email protected]>
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Signed-off-by: Benjamin Coenen <[email protected]>
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Signed-off-by: Benjamin Coenen <[email protected]>
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4397: Textmate cooperation r=matklad a=georgewfraser
This PR tweaks the fallback TextMate scopes to make them more consistent with the existing grammar and other languages, and edits the builtin TextMate grammar to align with semantic coloring. Before is on the left, after is on the right:
<img width="855" alt="Screen Shot 2020-05-10 at 1 45 51 PM" src="https://user-images.githubusercontent.com/1369240/81512320-a8be7e80-92d4-11ea-8940-2c03f6769015.png">
**Use keyword.other for regular keywords instead of keyword**. This is a really peculiar quirk of TextMate conventions, but virtually *all* TextMate grammars use `keyword.other` (colored blue in VSCode Dark+) for regular keywords and `keyword.control` (colored purple in VSCode Dark+) for control keywords. The TextMate scope `keyword` is colored like control keywords, not regular keywords. It may seem strange that the `keyword` scope is not the right fallback for the `keyword` semantic token, but TextMate has a long and weird history. Note how keywords change from purple back to blue (what they were before semantic coloring was added):
**(1) Use punctuation.section.embedded for format specifiers**. This aligns with how Typescript colors formatting directives:
<img width="238" alt="Screen Shot 2020-05-09 at 10 54 01 AM" src="https://user-images.githubusercontent.com/1369240/81481258-93b5f280-91e3-11ea-99c2-c6d258c5bcad.png">
**(2) Consistently use `entity.name.type.*` scopes for type names**. Avoid using `entity.name.*` which gets colored like a keyword.
**(3) Use Property instead of Member for fields**. Property and Member are very similar, but if you look at the TextMate fallback scopes, it's clear that Member is intended for function-like-things (methods?) and Property is intended for variable-like-things.
**(4) Color `for` as a regular keyword when it's part of `impl Trait for Struct`**.
**(5) Use `variable.other.constant` for constants instead of `entity.name.constant`**. In the latest VSCode insiders, variable.other.constant has a subtly different color that differentiates constants from ordinary variables. It looks close to the green of types but it's not the same---it's a new color recently added to take advantage of semantic coloring.
I also made some minor changes that make the TextMate scopes better match the semantic scopes. The effect of this for the user is you observe less of a change when semantic coloring "activates". You can see the changes I made relative to the built-in TextMate grammar here:
https://github.com/rust-analyzer/rust-analyzer/pull/4397/files/a91d15c80c337dd1afb0eddd5eb048010d098ac7..97428b6d52d25f810dbd7d7a8d787740c58bfbd2#diff-6966c729b862f79f79bf7258eb3e0885
Co-authored-by: George Fraser <[email protected]>
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4403: Check client capabilities before sending progress notifications r=kjeremy a=kjeremy
Fixes #4384
Co-authored-by: Jeremy Kolb <[email protected]>
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Fixes #4384
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RUST_LOG might be set up for debugging the user's problem, slowing
down rust-analyzer considerably. That's the same reason why rustc uses
RUSTC_LOG.
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4421: Find references to a function outside module r=flodiebold a=montekki
Fixes #4188
Yet again, it looks like although the code in
https://github.com/rust-analyzer/rust-analyzer/blob/da1f316b0246ce41d7cb8560181e294089f06ef3/crates/ra_ide_db/src/search.rs#L128-L132
may be wrong, it is not hit since the `vis` is `None` at this point. The fix is similar to the #4237 case: just add another special case to `Definition::visibility()`.
Co-authored-by: Fedor Sakharov <[email protected]>
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4396: Improve panic message for ast_from_text r=jonas-schievink a=edwin0cheng
Related: #4368
Co-authored-by: Edwin Cheng <[email protected]>
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4394: Simplify r=matklad a=Veetaha
4414: Highlighting improvements r=matklad a=matthewjasper
- `static mut`s are highlighted as `mutable`.
- The name of the macro declared by `macro_rules!` is now highlighted.
Co-authored-by: veetaha <[email protected]>
Co-authored-by: Matthew Jasper <[email protected]>
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4406: Update cargo-metadata r=matklad a=edwin0cheng
This PR update `cargo-metadata` to 0.10.0 and it also relax the` serde-derive` deps to 1.0 for tests in `proc-macro-srv`.
cc @robojumper
r= @matklad , I think you would have something to say related to https://github.com/serde-rs/json/issues/647#issue-593788429 ?
4410: Improve wording in comment r=matklad a=edwin0cheng
4411: do not remove then block when you unwrap else block #4361 r=matklad a=bnjjj
close #4361
4417: Omit default types in HirDisplay SourceCode mode r=matklad a=TimoFreiberg
Closes #4390
Co-authored-by: Edwin Cheng <[email protected]>
Co-authored-by: Benjamin Coenen <[email protected]>
Co-authored-by: Timo Freiberg <[email protected]>
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Signed-off-by: Benjamin Coenen <[email protected]>
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4418: Refactor protocol handling r=matklad a=matklad
bors r+
🤖
Co-authored-by: Aleksey Kladov <[email protected]>
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Trait based infra in conv.rs is significantly more complicated than
what we actually need here.
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This fixes an issue where the following code sample would fail to infer
the type contained in the option:
```rust
fn main() {
let mut end = None; // TODO: Fix inference for this in RA
loop {
end = Some(true);
}
}
```
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4392: Add From should not move the cursor r=matklad a=matklad
bors r+
🤖
Co-authored-by: Aleksey Kladov <[email protected]>
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4175: Introduce HirDisplay method for rendering source code & use it in add_function assist r=flodiebold a=TimoFreiberg
Next feature for #3639.
So far the only change in the new `HirDisplay` method is that paths are qualified, but more changes will be necessary (omitting the function name from function types, returning an error instead of printing `"{unknown}"`, probably more).
Is that approach okay?
Co-authored-by: Timo Freiberg <[email protected]>
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E.g. in
```rust
match x {
1 => function1,
2 => function2,
}
```
we need to try coercing both to pointers. Turns out this is a special case in
rustc as well (see the link in the comment).
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4377: Implement better handling of divergence r=matklad a=flodiebold
Divergence here means that for some reason, the end of a block will not be reached. We tried to model this just using the never type, but that doesn't work fully (e.g. in `let x = { loop {}; "foo" };` x should still have type `&str`); so this introduces a `diverges` flag that the type checker keeps track of, like rustc does. We also add some checking for `break`, but no support for break-with-value or labeled breaks yet.
Co-authored-by: Florian Diebold <[email protected]>
Co-authored-by: Florian Diebold <[email protected]>
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