109 lines
2.8 KiB
Markdown
109 lines
2.8 KiB
Markdown
To install experimental VS Code plugin:
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```
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$ git clone https://github.com/rust-analyzer/rust-analyzer.git
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$ cd rust-analyzer
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$ cargo install-code
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```
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This will run `cargo install --packge ra_lsp_server` to install the
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server binary into `~/.cargo/bin`, and then will build and install
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plugin from `editors/code`. See
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[this](https://github.com/matklad/rust-analyzer/blob/cc76b0d31d8ba013c499dd3a4ca69b37004795e6/crates/tools/src/main.rs#L192)
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for details
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It's better to remove existing Rust plugins to avoid interference.
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### Features:
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* syntax highlighting (LSP does not have API for it, so impl is hacky
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and sometimes fall-backs to the horrible built-in highlighting)
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* **Go to symbol in workspace** (`ctrl+t`)
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- `#Foo` searches for `Foo` type in the current workspace
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- `#foo#` searches for `foo` function in the current workspace
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- `#Foo*` searches for `Foo` type among dependencies, excluding `stdlib`
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- Sorry for a weired UI, neither LSP, not VSCode have any sane API for filtering! :)
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* **Go to symbol in file** (`alt+shift+o`)
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* **Go to definition** ("correct" for `mod foo;` decls, approximate for other things).
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* commands (`ctrl+shift+p` or keybindings)
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- **Show Rust Syntax Tree** (use it to verify that plugin works)
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- **Rust Extend Selection**. Extends the current selection to the
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encompassing syntactic construct (expression, statement, item,
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module, etc). It works with multiple cursors. Do bind this command
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to a key, its super-useful!
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- **Rust Matching Brace**. If the cursor is on any brace
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(`<>(){}[]`) which is a part of a brace-pair, moves cursor to the
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matching brace.
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- **Rust Parent Module**. Navigate to the parent module of the current module
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- **Rust Join Lines**. Join selected lines into one, smartly fixing
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up whitespace and trailing commas.
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- **Run test at caret**. When cursor is inside a function marked
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`#[test]`, this action runs this specific test. If the cursor is
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outside of the test function, this re-runs the last test. Do bind
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this to a shortcut!
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- **Format document**. Formats the current file with rustfmt.
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Rustfmt must be installed separately with `rustup component add rustfmt`.
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* Typing assists
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- typing `let =` tries to smartly add `;` if `=` is followed by an existing expression.
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- Enter inside comments continues comment (`<|>` signifies cursor position):
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```
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/// Docs<|>
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fn foo() {}
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```
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```
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/// Docs
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/// <|>
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fn foo() {}
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```
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* code actions (use `ctrl+.` to activate).
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- Flip `,`
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```
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// before:
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fn foo(x: usize,<|> dim: (usize, usize))
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// after:
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fn foo(dim: (usize, usize), x: usize)
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```
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- Add `#[derive]`
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```
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// before:
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struct Foo {
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<|>x: i32
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}
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// after:
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#[derive(<|>)]
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struct Foo {
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x: i32
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}
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```
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- Add `impl`
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```
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// before:
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struct Foo<'a, T: Debug> {
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<|>t: T
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}
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// after:
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struct Foo<'a, T: Debug> {
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t: T
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}
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impl<'a, T: Debug> Foo<'a, T> {
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<|>
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}
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```
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