When dealing with proc macros, there are two very different kinds of
errors:
* first, usual errors of "proc macro panicked on this particular input"
* second, the proc macro server might day if the user, eg, kills it
First kind of errors are expected and are a normal output, while the
second kind are genuine IO-errors.
For this reason, we use a curious nested result here: `Result<Result<T,
E1>, E2>` pattern, which is 100% inspired by http://sled.rs/errors.html
closes#9922
Turned out to be trivial after preliminary refactor.
The intended behavior is that we schedule cache priming once ws become
quiescent (that is, we fully load cargo project), and we continue to
rschedule it until it completes (priming might get cancelled by user
typing into a file).
10005: Extend `CargoConfig.unset_test_crates` r=matklad a=regexident
This is to allow for efficiently disabling `#[cfg(test)]` on all crates (by passing `unset_test_crates: UnsetTestCrates::All`) without having to first load the crate graph, when using rust-analyzer as a library.
(FYI: The change doesn't seem to be covered by any existing tests.)
Co-authored-by: Vincent Esche <regexident@gmail.com>
10080: internal: don't shut up the compiler when it says the code's buggy r=matklad a=matklad
bors r+
🤖
Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>
It's good that rust-analyzer doesn't belly-up on a panic in some random
assist.
It is less good that rust-analyzer devs only know that the assists are
buggy when they are actively looking at the logs.
I don't think there's anything wrong with project_model depending on
proc_macro_api directly -- fundamentally, both are about gluing our pure
data model to the messy outside world.
However, it's easy enough to avoid the dependency, so why not.
As an additional consideration, `proc_macro_api` now pulls in `base_db`.
project_model should definitely not depend on that!
cargo llvm-lines shows that path_to_error bloats the code. I don't think
I've needed this functionality recently, seems that we've fixed most of
the serialization problems. So let's just remove it. Should be easy to
add back if we ever need it, and it does make sense to keep the
`from_json` function around.
9830: Enable more assists to generate default trait body impls r=Veykril a=yoshuawuyts
Enable more assists to benefit from trait body generation. Follow-up to #9825 and #9814.
__edit:__ I'd like to move the existing tests to this new file too, but I'll do that in a follow-up PR.
Co-authored-by: Yoshua Wuyts <yoshuawuyts@gmail.com>
From the dawn of time, when dinosaurs roamed the and we didn't have
hierarchical profiling, there was the `latest_requests` infra we used to
track the time of ten last requests.
Today, no one is actually using it and, what's more, it itself became
pretty useless -- LSP grew way more chatty, and 10 requests don't really
paint any kind of picture.
Personally, it's been years since I last looked at latest requests in
the status output.
So, let's remove a tiny bit of state from the big ball of complexity
that is `GlobalState` and `main_loop`!
We generally avoid "syntax only" helper wrappers, which don't do much:
they make code easier to write, but harder to read. They also make
investigations harder, as "find_usages" needs to be invoked both for the
wrapped and unwrapped APIs
9734: semantic highlighting: add reference hlmod r=matklad a=jhgg
This PR adds the "reference" highlight modifier!
I basically went around and looked for `HlMod::Mutable` to find the callsites to add a reference. I think these all make sense!
Co-authored-by: Jake Heinz <jh@discordapp.com>
Co-authored-by: Jake <jh@discordapp.com>
Some features of rust-analyzer requires support for custom commands on
the client side. Specifically, hover & code lens need this.
Stock LSP doesn't have a way for the server to know which client-side
commands are available. For that reason, we historically were just
sending the commands, not worrying whether the client supports then or
not.
That's not really great though, so in this PR we add infrastructure for
the client to explicitly opt-into custom commands, via `extensions`
field of the ClientCapabilities.
To preserve backwards compatability, if the client doesn't set the
field, we assume that it does support all custom commands. In the
future, we'll start treating that case as if the client doesn't support
commands.
So, if you maintain a rust-analyzer client and implement
`rust-analyzer/runSingle` and such, please also advertise this via a
capability.
9693: feat: Add the Hover Range capability which enables showing the type of an expression r=matklad a=alexfertel
Closes https://github.com/rust-analyzer/rust-analyzer/issues/389
This PR extends the `textDocument/hover` method to allow getting the type of an expression. It looks like this:
Edit: One thing I noticed is that when hovering a selection that includes a macro it doesn't work, so maybe this would need a follow-up issue discussing what problem that may have.
(PS: What a great project! I am learning a lot! 🚀)
Co-authored-by: Alexander Gonzalez <alexfertel97@gmail.com>
Co-authored-by: Alexander González <alexfertel97@gmail.com>
9558: Do not erase Cargo diagnostics from the closed documents r=matklad a=SomeoneToIgnore
Fixes https://github.com/rust-analyzer/rust-analyzer/issues/6850
The LSP specification at https://microsoft.github.io/language-server-protocol/specifications/specification-3-14/#textDocument_publishDiagnostics states that
> Diagnostics notification are sent from the server to the client to signal results of validation runs.
>
> Diagnostics are “owned” by the server so it is the server’s responsibility to clear them if necessary. The following rule is used for VS Code servers that generate diagnostics:
>
> * if a language is single file only (for example HTML) then diagnostics are cleared by the server when the file is closed.
> * if a language has a project system (for example C#) diagnostics are not cleared when a file closes. When a project is opened all diagnostics for all files are recomputed (or read from a cache).
>
> When a file changes it is the server’s responsibility to re-compute diagnostics and push them to the client. If the computed set is empty it has to push the empty array to clear former diagnostics. Newly pushed diagnostics always replace previously pushed diagnostics. There is no merging that happens on the client side.
So for projects we should not clear any diagnostics from cargo/json projects.
Our "standalone file" mode is in a way a project too, with sysroot attached and a potential support for dynamic standalone files.
Co-authored-by: Kirill Bulatov <mail4score@gmail.com>
9634: minor update to excludeDirs doc r=lnicola a=dae
I saw reference to globs in #7755, but it doesn't look like they're
actually supported, and I had to dig through the source to discover
that the folders are relative to the workspace root. Further digging
was required to get VS Code from hanging for long periods trying to
watch giant Bazel folders that had already been excluded from Rust
Analyzer. Hopefully this tweak will save others the confusion :-)
Co-authored-by: Damien Elmes <gpg@ankiweb.net>
Co-authored-by: Damien Elmes <dae@users.noreply.github.com>
I saw reference to globs in #7755, but it doesn't look like they're
actually supported, and I had to dig through the source to discover
that the folders are relative to the workspace root. Further digging
was required to get VS Code from hanging for long periods trying to
watch giant Bazel folders that had already been excluded from Rust
Analyzer. Hopefully this tweak will save others the confusion :-)
Note that, while we don't currently have a fuzzy-matching score, it
makes sense to special-case postfix templates -- it's very annoying when
`.not()` gets sorted before `.not`. We might want to move this infra to
fuzzy matching, once we have that!
Before this PR, SourceChange used a bool and CompletionItem used an enum
to signify if edit is a snippet. It makes sense to use the same pattern
in both cases. `bool` feels simpler, as there's only one consumer of
this API, and all producers are encapsulated anyway (we check the
capability at the production site).
One source completion can produce up to two lsp completions.
Additionally, `preselct` and `sort_text` are global properties of the
whole set of completions, so the right granularity here is to convert
many completions.
As a side-benefit, we no loger allocate intermediate vec.
Moving tests to `rust-analyzer` crate allows removing walkdir dependency
from `xtask`. It does seem more reasonable to keep tidy tests outside of
the "build system" and closer to other integration tests.
* Keep codegen adjacent to the relevant crates.
* Remove codgen deps from xtask, speeding-up from-source installation.
This regresses the release process a bit, as it now needs to run the
tests (and, by extension, compile the code).
9269: Recreate status page r=lnicola a=Milo123459
I'm working on redesigning the status page.
Co-authored-by: Milo <50248166+Milo123459@users.noreply.github.com>
9380: feat: Implement goto_declaration support r=matklad a=Veykril
This is just a simple implementation that falls back to `goto_definition` for everything but modules where it goes to the actual module declaration if possible.
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9348: output to log file if RA_LOG_FILE is defined in environment r=rezural a=rezural
This adds a check for RA_LOG_FILE, and logs to that if defined. It currently overrides flags.log_file. If this is undesirable, I will add a check.
Co-authored-by: rezural <rezural@protonmail.com>
9264: feat: Make documentation on hover configurable r=Veykril a=Veykril
This also implements deprecation support for config options as this renames `hoverActions_linksInHover` to `hover_linksInHover`.
Fixes#9232
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9258: minor: Give `ImportPrefix` variants better config names r=matklad a=Veykril
I feel like `crate` and `self` work better than `by_crate` and `by_self`. The only reason for the current names were that `Self` doesn't work for the variant name on the rust side so I forgot about setting proper config names on serde layer.
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
9260: tree-wide: make rustdoc links spiky so they are clickable r=matklad a=lf-
Rustdoc was complaining about these while I was running with --document-private-items and I figure they should be fixed.
Co-authored-by: Jade <software@lfcode.ca>
