Rust Language Server

Rust Language Server (RLS) is a tool that provides IDE-like features such as code completion, go-to-definition, and symbol search for Rust programming language. It is built on top of the Rust compiler and provides a fast, reliable, and efficient development experience for Rust developers.

Features

• Code completion
• Go-to-definition
• Symbol search
• Error highlighting
• Code formatting

Installation

To use RLS, you need to have Rust installed on your system. Then you can install RLS using the following command:

rustup component add rls rust-analysis rust-src

You can also install RLS using Visual Studio Code Rust extension or any other Rust editor extension that supports it.

Configuration

RLS can be configured using the following environment variables:

• RUST_SRC_PATH - The path to the Rust source code. If not set, RLS will try to find it automatically.
• RUSTFLAGS - Flags to be passed to the Rust compiler when building RLS.

Usage

After installation, RLS can be used by any Rust IDE or editor that supports it. However, some editors may require additional configuration.

Visual Studio Code

To use RLS in Visual Studio Code, install the Rust extension and add the following configuration to your workspace settings:

{
    "rust-client.channel": "stable",
    "rust-client.enable-enhanced-accuracy": true,
    "rust-client.rls_path": "rls"
}

Conclusion

RLS is an essential tool for Rust developers that enhances their productivity and efficiency. With its IDE-like features, it provides a seamless development experience that makes working with Rust a joy.