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Update rust-analyzer documentation, mention linkedProjects

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Alex Macleod 2022-09-14 10:46:20 +00:00
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CONTRIBUTING.md
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@ -110,23 +110,28 @@ Just make sure to remove the dependencies again before finally making a pull req
[IntelliJ_rust_homepage]: https://intellij-rust.github.io/
### Rust Analyzer
As of [#6869][6869], [`rust-analyzer`][ra_homepage] can understand that Clippy uses compiler-internals
using `extern crate` when `package.metadata.rust-analyzer.rustc_private` is set to `true` in Clippy's `Cargo.toml.`
You will require a `nightly` toolchain with the `rustc-dev` component installed.
Make sure that in the `rust-analyzer` configuration, you set
For [`rust-analyzer`][ra_homepage] to work correctly make sure that in the `rust-analyzer` configuration you set
```json
{ "rust-analyzer.rustc.source": "discover" }
```
and
```json
{ "rust-analyzer.updates.channel": "nightly" }
```
You should be able to see information on things like `Expr` or `EarlyContext` now if you hover them, also
a lot more type hints.
This will work with `rust-analyzer 2021-03-15` shipped in nightly `1.52.0-nightly (107896c32 2021-03-15)` or later.
To have `rust-analyzer` also work in the `clippy_dev` and `lintcheck` crates, add the following configuration
```json
{
"rust-analyzer.linkedProjects": [
"./Cargo.toml",
"clippy_dev/Cargo.toml",
"lintcheck/Cargo.toml",
]
}
```
[ra_homepage]: https://rust-analyzer.github.io/
[6869]: https://github.com/rust-lang/rust-clippy/pull/6869
## How Clippy works