Currently, rust-analyzer highlights the entire region when a `cfg` is
inactive (e.g. `#[cfg(windows)]` on a Linux machine). However,
unlinked files only highlight the first three characters of the file.
This was introduced in #8444, but users have repeatedly found
themselves with no rust-analyzer support for a file and unsure
why (see e.g. #13226 and the intentionally prominent pop-up added in
PR #14366).
(Anecdotally, we see this issue bite our users regularly, particularly
people new to Rust.)
Instead, highlight the entire inactive file, but mark it as all as
unused. This allows users to hover and run the quickfix from any line.
Whilst this is marginally more prominent, it's less invasive than a
pop-up, and users do want to know why they're getting no rust-analyzer
support in certain files.
Feat: hide double underscored symbols from symbol search
Fixes#17272 by changing the default behavior of query to skip results that start with `__` (two underscores).
Not sure if this has any far reaching implications - a review would help to understand if this is the right place to do the filtering, and if it's fine to do it by default on the query.
If you type `__` as your search, then we'll show the matching double unders, just in case you actually need the symbol.
internal: Improve `find_path` performance
cc https://github.com/rust-lang/rust-analyzer/issues/17339, db80216dac should fix a case where we don't reduce our search space appropriately. This also adds a fuel system which really shouldn't ever be hit, hence why it warns
Don't mark `#[rustc_deprecated_safe_2024]` functions as unsafe
`std::env::set_var` will be unsafe in edition 2024, but not before it. I couldn't quite figure out how to check for the span properly, so for now we just turn the false positives into false negatives, which are less bad.
Add `Function::fn_ptr_type(…)` for obtaining name-erased function type
The use case of this function if being able to group functions by their function ptr type.
cc `@flodiebold`
fix: Only generate snippets for `extract_expressions_from_format_string` if snippets are supported
Part of #17332
Fixes `extract_expressions_from_format_string` so that it doesn't generate snippets if the client doesn't support it.
`std::env::set_var` will be unsafe in edition 2024, but not before it.
I couldn't quite figure out how to check for the span properly, so for now
we just turn the false positives into false negatives, which are less bad.
fix diagnostics clearing when flychecks run per-workspace
This might be causing #17300 or it's a different bug with the same functionality.
I wonder if the decision to clear diagnostics should stay in the main loop or maybe the flycheck itself should track it and tell the mainloop?
I have used a hash map but we could just as well use a vector since the IDs are `usizes` in some given range starting at 0. It would be probably faster but this just felt a bit cleaner and it allows us to change the ID to newtype later and we can just use a hasher that returns the underlying integer.
Add `toggle_async_sugar` assist code action
Implement code action for sugaring and de-sugaring asynchronous functions.
This code action does not import `Future` trait when de-sugaring and does not touch function boby, I guess this can be implemented later if needed. This action also does not take into consideration other bounds because IMO it's usually "let me try to use sugared version here".
Feel free to request changes, that's my first code action implementation 😄Closes#17010
Relates to #16195
Implement assist to switch between doc and normal comments
Hey first PR to rust-analyzer to get my feet wet with the code base. It's an assist to switch a normal comment to a doc comment and back, something I've found myself doing by hand a couple of times.
I shamelessly stole `relevant_line_comments` from `convert_comment_block`, because I didn't see any inter-assist imports happening in the files I peeked at so I thought this would be preferable.
