rust/editors/README.md
Aleksey Kladov 2b956fd3a8 Add on-enter handler
Now, typing doc comments is much more pleasant
2018-10-09 19:52:06 +03:00

2.6 KiB

To install experimental VS Code plugin:

$ cargo install-code

This will run cargo install --packge ra_lsp_server to install the server binary into ~/.cargo/bin, and then will build and install plugin from editors/code. See this for details

It's better to remove existing Rust plugins to avoid interference.

Features:

  • syntax highlighting (LSP does not have API for it, so impl is hacky and sometimes fall-backs to the horrible built-in highlighting)

  • Go to symbol in workspace (ctrl+t)

    • #Foo searches for Foo type in the current workspace
    • #foo# searches for foo function in the current workspace
    • #Foo* searches for Foo type among dependencies, excluding stdlib
    • Sorry for a weired UI, neither LSP, not VSCode have any sane API for filtering! :)
  • Go to symbol in file (alt+shift+o)

  • Go to definition ("correct" for mod foo; decls, approximate for other things).

  • commands (ctrl+shift+p or keybindings)

    • Show Rust Syntax Tree (use it to verify that plugin works)
    • Rust Extend Selection. Extends the current selection to the encompassing syntactic construct (expression, statement, item, module, etc). It works with multiple cursors. Do bind this command to a key, its super-useful!
    • Rust Matching Brace. If the cursor is on any brace (<>(){}[]) which is a part of a brace-pair, moves cursor to the matching brace.
    • Rust Parent Module. Navigate to the parent module of the current module
    • Rust Join Lines. Join selected lines into one, smartly fixing up whitespace and trailing commas.
    • Run test at caret. When cursor is inside a function marked #[test], this action runs this specific test. If the cursor is outside of the test function, this re-runs the last test. Do bind this to a shortcut!
  • Typing assists

    • typing let = tries to smartly add ; if = is followed by an existing expression.
    • Enter inside comments continues comment (<|> signifies cursor position):
/// Docs<|>
fn foo() {}
/// Docs
/// <|>
fn foo() {}
  • code actions (use ctrl+. to activate).
  • Flip ,
// before:
fn foo(x: usize,<|> dim: (usize, usize))
// after:
fn foo(dim: (usize, usize), x: usize)
  • Add #[derive]
// before:
struct Foo {
    <|>x: i32
}
// after:
#[derive(<|>)]
struct Foo {
    x: i32
}
  • Add impl
// before:
struct Foo<'a, T: Debug> {
    <|>t: T
}
// after:
struct Foo<'a, T: Debug> {
    t: T
}

impl<'a, T: Debug> Foo<'a, T> {
    <|>
}