TokenMap -> SpanMap rewrite
Opening early so I can have an overview over the full diff more easily, still very unfinished and lots of work to be done.
The gist of what this PR does is move away from assigning IDs to tokens in arguments and expansions and instead gives the subtrees the text ranges they are sourced from (made relative to some item for incrementality). This means we now only have a single map per expension, opposed to map for expansion and arguments.
A few of the things that are not done yet (in arbitrary order):
- [x] generally clean up the current mess
- [x] proc-macros, have been completely ignored so far
- [x] syntax fixups, has been commented out for the time being needs to be rewritten on top of some marker SyntaxContextId
- [x] macro invocation syntax contexts are not properly passed around yet, so $crate hygiene does not work in all cases (but most)
- [x] builtin macros do not set spans properly, $crate basically does not work with them rn (which we use)
~~- [ ] remove all uses of dummy spans (or if that does not work, change the dummy entries for dummy spans so that tests will not silently pass due to havin a file id for the dummy file)~~
- [x] de-queryfy `macro_expand`, the sole caller of it is `parse_macro_expansion`, and both of these are lru-cached with the same limit so having it be a query is pointless
- [x] docs and more docs
- [x] fix eager macro spans and other stuff
- [x] simplify include! handling
- [x] Figure out how to undo the sudden `()` expression wrapping in expansions / alternatively prioritize getting invisible delimiters working again
- [x] Simplify InFile stuff and HirFIleId extensions
~~- [ ] span crate containing all the file ids, span stuff, ast ids. Then remove the dependency injection generics from tt and mbe~~
Fixes https://github.com/rust-lang/rust-analyzer/issues/10300
Fixes https://github.com/rust-lang/rust-analyzer/issues/15685
internal: simplify the removal of dulicate workspaces.
### Summary:
Refactoring the duplicate removal process for `workspaces` in `fetch_workspaces`.
### Changes Made:
Replaced `[].iter().enumerate().skip(...).filter_map(...)` with a more concise `[i+1..].positions(...)` provided by `itertools`, which enhances clarity without changing functionality
### Impact:
This change aims to enhance the duplicate removal process for `workspaces`. This change has been tested on my machine.
Please review and provide feedback. Thanks!
ensure renames happen after edit
This is a bugfix for an issue I fould while working on helix. Rust-analyzer currently always sends any filesystem edits (rename/file creation) before any other edits. When renaming a file that is also being edited that would mean that the edit would be discarded and therefore an incomplete/incorrect refactor (or even cause the creation of a new file in helix altough that is probably a pub on our side).
Example:
* create a module: `mod foo` containing a `pub sturct Bar;`
* reexport the struct uneder a different name in the `foo` module using a *fully qualified path*: `pub use crate::foo::Bar as Bar2`.
* rename the `foo` module to `foo2` using rust-analyzer
* obsereve that the path is not correctly updated (rust-analyer first sends a rename `foo.rs` to `foo2.rs` and then edits `foo.rs` after)
This PR fixes that issue by simply executing all rename operations after all edit operations (while still executing file creation operations first). I also added a testcase similar to the example above.
Relevent excerpt from the LSP standard:
> Since version 3.13.0 a workspace edit can contain resource operations (create, delete or rename files and folders) as well. If resource operations are present clients need to execute the operations in the order in which they are provided. So a workspace edit for example can consist of the following two changes: (1) create file a.txt and (2) a text document edit which insert text into file a.txt. An invalid sequence (e.g. (1) delete file a.txt and (2) insert text into file a.txt) will cause failure of the operation. How the client recovers from the failure is described by the client capability: workspace.workspaceEdit.failureHandling
internal: port anymap
## Description
- The anymap crate has been ported. During this process, unnecessary features for rust-analyzer have been removed.
- From the tests that were checking the existing licenses, the anymap license (`BlueOak-1.0.0 OR MIT OR Apache-2.0`) has been removed.
## Requests
- While porting the code this time, I have tried to respect the original author's intentions and have kept the comments/codes as much as possible. Please don't hesitate to tell me if you think the comments/codes also need to be appropriately modified.
- If there are any necessary changes regarding the licensing or anything else, please let me know so I can fix them.
## Issue
https://github.com/rust-lang/rust-analyzer/issues/15500
Add dedicated field for `target_dir` in the configurations for Cargo
and Flycheck. Also change the directory to be a `PathBuf` as opposed to
a `String` to be more appropriate to the operating system.
Adds a Rust Analyzer configuration option to set a custom
target directory for builds. This is a workaround for Rust Analyzer
blocking debug builds while running `cargo check`. This change
should close#6007
fix: ensure `rustfmt` runs when configured with `./`
(Hopefully) resolves https://github.com/rust-lang/rust-analyzer/issues/15595. This change kinda approaches canonicalization—which I am not a fan of—but only in service of making `./`-configured commands run correctly.
Longer-term, I feel like this code should be removed once `rustfmt` supports recursive searches of configuration files or interpolation of values like `${workspace_folder}` lands in rust-analyzer.
## Testing
I cloned `rustc`, setup rust-analyzer as suggested in the [`rustc` dev guide](https://rustc-dev-guide.rust-lang.org/building/suggested.html#configuring-rust-analyzer-for-rustc), saved and formatted files in `src/tools/miri` and `compiler`, and saw `rustfmt` (seemingly) correctly.
extend check.overrideCommand and buildScripts.overrideCommand docs
Extend check.overrideCommand and buildScripts.overrideCommand docs regarding invocation strategy and location.
However something still seems a bit odd -- the docs for `invocationStrategy`/`invocationLocation` talk about "workspaces", but the setting that controls which workspaces are considered is called `linkedProjects`. Is a project the same as a workspace here or is there some subtle difference?
VSCode behaves strangely, allowing to navigate into label location, but
not allowing to apply hint's text edit, after hint is resolved.
See https://github.com/microsoft/vscode/issues/193124 for details.
For now, stub hint resolution for VSCode specifically.
Switch to in-tree rustc dependencies with a cfg flag
We can use this flag to detect and prevent breakages in rustc CI. (see #14846 and #15569)
~The `IN_RUSTC_REPOSITORY` is just a placeholder. Is there any existing cfg flag that rustc CI sets?~
Resolve inlay hint data
Part of https://github.com/rust-lang/rust-analyzer/issues/13962
Support https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#inlayHint_resolve better, by omitting all inlay hint fields specified in the client hint resolve capabilities.
Current list of all capabilities possible to resolve later:
```
"textEdits"
"tooltip"
"label.tooltip"
"label.location"
"label.command"
```
and every one specified in the client capabilities is now resolved by r-a, being omitted in the initial response.
--------------
When editing `inlay_hints.rs` file around line `457` with no resolve capabilities, I get
<details>
<summary>resolved json, 10803 characters</summary>
```json
{"jsonrpc":"2.0","id":55,"result":[{"position":{"line":477,"character":1},"label":[{"value":"fn inlay_hints","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/ide/src/inlay_hints.rs","range":{"start":{"line":445,"character":14},"end":{"line":445,"character":25}}}}],"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":451,"character":10},"label":[{"value":": "},{"value":"ProfileSpan","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/profile/src/hprof.rs","range":{"start":{"line":85,"character":11},"end":{"line":85,"character":22}}}},{"value":""}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":451,"character":27},"label":[{"value":"label:","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/profile/src/hprof.rs","range":{"start":{"line":60,"character":12},"end":{"line":60,"character":17}}}}],"kind":2,"paddingLeft":false,"paddingRight":true,"data":{"file_id":0}},{"position":{"line":452,"character":12},"label":[{"value":": "},{"value":"Semantics","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/hir/src/semantics.rs","range":{"start":{"line":108,"character":11},"end":{"line":108,"character":20}}}},{"value":"<'_, "},{"value":"RootDatabase","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/ide-db/src/lib.rs","range":{"start":{"line":75,"character":11},"end":{"line":75,"character":23}}}},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":453,"character":12},"label":[{"value":": "},{"value":"SourceFile","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/ast/generated/nodes.rs","range":{"start":{"line":223,"character":11},"end":{"line":223,"character":21}}}},{"value":""}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":454,"character":12},"label":[{"value":": &"},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":456,"character":12},"label":": i32","kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":458,"character":15},"label":[{"value":": "},{"value":"Vec","location":{"uri":"file:///Users/someonetoignore/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/vec/mod.rs","range":{"start":{"line":395,"character":11},"end":{"line":395,"character":14}}}},{"value":"<"},{"value":"InlayHint","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/ide/src/inlay_hints.rs","range":{"start":{"line":149,"character":11},"end":{"line":149,"character":20}}}},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":460,"character":21},"label":[{"value":": "},{"value":"SemanticsScope","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/hir/src/semantics.rs","range":{"start":{"line":1651,"character":11},"end":{"line":1651,"character":25}}}},{"value":"<'_>"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":460,"character":36},"label":[{"value":"node:","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/hir/src/semantics.rs","range":{"start":{"line":482,"character":24},"end":{"line":482,"character":28}}}}],"kind":2,"paddingLeft":false,"paddingRight":true,"data":{"file_id":0}},{"position":{"line":461,"character":23},"label":[{"value":": "},{"value":"FamousDefs","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/ide-db/src/famous_defs.rs","range":{"start":{"line":20,"character":11},"end":{"line":20,"character":21}}}},{"value":"<'_, '_>"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":463,"character":17},"label":[{"value":": impl FnMut("},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">)"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":463,"character":25},"label":[{"value":": "},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":463,"character":33},"label":[{"value":"hints:","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/ide/src/inlay_hints.rs","range":{"start":{"line":480,"character":4},"end":{"line":480,"character":9}}}}],"kind":2,"paddingLeft":false,"paddingRight":true,"data":{"file_id":0}},{"position":{"line":465,"character":22},"label":[{"value":": "},{"value":"TextRange","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/text-size-1.1.0/src/range.rs","range":{"start":{"line":14,"character":11},"end":{"line":14,"character":20}}}},{"value":""}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":467,"character":35},"label":[{"value":": "},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":469,"character":92},"label":[{"value":"impl "},{"value":"Iterator","location":{"uri":"file:///Users/someonetoignore/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/traits/iterator.rs","range":{"start":{"line":72,"character":10},"end":{"line":72,"character":18}}}},{"value":"<"},{"value":"Item","location":{"uri":"file:///Users/someonetoignore/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/traits/iterator.rs","range":{"start":{"line":76,"character":9},"end":{"line":76,"character":13}}}},{"value":" = "},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">>"}],"kind":1,"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":468,"character":34},"label":[{"value":"impl "},{"value":"Iterator","location":{"uri":"file:///Users/someonetoignore/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/traits/iterator.rs","range":{"start":{"line":72,"character":10},"end":{"line":72,"character":18}}}},{"value":"<"},{"value":"Item","location":{"uri":"file:///Users/someonetoignore/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/iter/traits/iterator.rs","range":{"start":{"line":76,"character":9},"end":{"line":76,"character":13}}}},{"value":" = "},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">>"},{"value":""}],"kind":1,"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":467,"character":41},"label":[{"value":""},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">"}],"kind":1,"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":469,"character":40},"label":" -> bool","kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":469,"character":39},"label":[{"value":": &"},{"value":"SyntaxNode","location":{"uri":"file:///Users/someonetoignore/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rowan-0.15.11/src/api.rs","range":{"start":{"line":15,"character":11},"end":{"line":15,"character":21}}}},{"value":"<"},{"value":"RustLanguage","location":{"uri":"file:///Users/someonetoignore/work/rust-analyzer/crates/syntax/src/syntax_node.rs","range":{"start":{"line":15,"character":9},"end":{"line":15,"character":21}}}},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}}]}
```
</details>
for the visible editor range alone, pretty much repeated on every consequent edit.
With this patch and all inlay hint resolve capabilities enabled, for the same example I observe quite a footprint reduction:
<details>
<summary>unresolved json, 4142 characters</summary>
```json
{"jsonrpc":"2.0","id":49,"result":[{"position":{"line":477,"character":1},"label":[{"value":"fn inlay_hints"}],"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":451,"character":10},"label":[{"value":": "},{"value":"ProfileSpan"},{"value":""}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":451,"character":27},"label":[{"value":"label:"}],"kind":2,"paddingLeft":false,"paddingRight":true,"data":{"file_id":0}},{"position":{"line":452,"character":12},"label":[{"value":": "},{"value":"Semantics"},{"value":"<'_, "},{"value":"RootDatabase"},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":453,"character":12},"label":[{"value":": "},{"value":"SourceFile"},{"value":""}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":454,"character":12},"label":[{"value":": &"},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":456,"character":12},"label":": i32","kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":458,"character":15},"label":[{"value":": "},{"value":"Vec"},{"value":"<"},{"value":"InlayHint"},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":460,"character":21},"label":[{"value":": "},{"value":"SemanticsScope"},{"value":"<'_>"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":460,"character":36},"label":[{"value":"node:"}],"kind":2,"paddingLeft":false,"paddingRight":true,"data":{"file_id":0}},{"position":{"line":461,"character":23},"label":[{"value":": "},{"value":"FamousDefs"},{"value":"<'_, '_>"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":463,"character":17},"label":[{"value":": impl FnMut("},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">)"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":463,"character":25},"label":[{"value":": "},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":463,"character":33},"label":[{"value":"hints:"}],"kind":2,"paddingLeft":false,"paddingRight":true,"data":{"file_id":0}},{"position":{"line":465,"character":22},"label":[{"value":": "},{"value":"TextRange"},{"value":""}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":467,"character":35},"label":[{"value":": "},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":469,"character":92},"label":[{"value":"impl "},{"value":"Iterator"},{"value":"<"},{"value":"Item"},{"value":" = "},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">>"}],"kind":1,"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":468,"character":34},"label":[{"value":"impl "},{"value":"Iterator"},{"value":"<"},{"value":"Item"},{"value":" = "},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">>"},{"value":""}],"kind":1,"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":467,"character":41},"label":[{"value":""},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">"}],"kind":1,"paddingLeft":true,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":469,"character":40},"label":" -> bool","kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}},{"position":{"line":469,"character":39},"label":[{"value":": &"},{"value":"SyntaxNode"},{"value":"<"},{"value":"RustLanguage"},{"value":">"}],"kind":1,"paddingLeft":false,"paddingRight":false,"data":{"file_id":0}}]}
```
</details>
with all unresolved parts needing only for navigation, hover or applying the hint edit — dynamic parts that are made after mouse hover or similar events, that resolve the hint data.
Do not send inlay hint refresh requests on file edits
See https://github.com/rust-lang/rust-analyzer/issues/13369#issuecomment-1695306870
Editor itself is able to invalidate hints after edits, and /refresh was sent after editor reports changes to the language server. This forces the editor to either query & invalidate the hints twice after every edit, or wait for /refresh to come before querying the hints.
Both options are rather useless, so instead, send a request on server startup only: client editors do not know when the server actually starts up, this will help to query the initial hints after editor was open and the server was still starting up.
On type format '(', by adding closing ')' automatically
If I understand right, `()` can surround pretty much the same `{}` can, so add another on type formatting pair for convenience: sometimes it's not that pleasant to write parenthesis in `Some(2).map(|i| (i, i+1))` cases and I would prefer r-a to do that for me.
One note: currently, b06503b6ec/crates/rust-analyzer/src/handlers/request.rs (L357) fires always.
Should we remove the assertion entirely now, since apparently things work in release despite that check?
Editor itself is able to invalidate hints after edits, and /refresh was
sent after editor reports changes to the language server.
This forces the editor to either query & invalidate the hints twice
after every edit, or wait for /refresh to come before querying the
hints.
Both options are rather useless, so instead, send a request on server
startup only: client editors do not know when the server actually starts
up, this will help to query the initial hints after editor was open and
the server was still starting up.
Previously this was hard coded to "0.1". The SCIP protocol allows this
to be an arbitrary string:
```
message ToolInfo {
// Name of the indexer that produced this index.
string name = 1;
// Version of the indexer that produced this index.
string version = 2;
// Command-line arguments that were used to invoke this indexer.
repeated string arguments = 3;
}
```
so use the same string reported by `rust-analyzer --version`.
