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The Zig Language Server (zls) is a tool that implements Microsoft's Language Server Protocol for Zig in Zig. In simpler terms: it'll provide you with completions, go-to definition, etc. when you write Zig code!

• Installation
  • From Source
    • Build Options
  • Configuration Options
  • Per-build Configuration Options
    • BuildOption
• Features
• Using as a library
• Related Projects
• Quick Thanks :)
• License

Building zls is very easy. You will need a build of Zig master to build zls.

git clone https://github.com/zigtools/zls
cd zls
zig build -Doptimize=ReleaseSafe

You can configure zls by editing your zls.json configuration file. Running zls --show-config-path will show a path to an already existing zls.json or a path to the local configuration folder instead.

zls will look for a zls.json configuration file in multiple locations with the following priority:

• In the local configuration folder of your OS (as provided by known-folders)
• In the global configuration folder of your OS (as provided by known-folders)

The following options are currently available.

The following options can be set on a per-project basis by placing zls.build.json in the project root directory next to build.zig.

BuildOption is defined as follows:

const BuildOption = struct {
    name: []const u8,
    value: ?[]const u8 = null,
};

When value is present, the option will be passed the same as in zig build -Dname=value. When value is null, the option will be passed as a flag instead as in zig build -Dflag.

zls supports most language features, including simple type function support, using namespace, payload capture type resolution, custom packages, cImport and others. Support for comptime and semantic analysis is Work-in-Progress.

The following LSP features are supported:

• Completions
• Hover
• Goto definition/declaration
• Document symbols
• Find references
• Rename symbol
• Formatting using zig fmt
• Semantic token highlighting
• Inlay hints
• Code actions
• Selection ranges
• Folding regions

You can use zls as a library! Check out this demo repo for a good reference.

• sublime-zig-language by @prime31
  • Supports basic language features
  • Uses data provided by src/data to perform builtin autocompletion
• zig-lsp by @xackus
  • Inspiration for zls
• known-folders by @ziglibs
  • Provides API to access known folders on Linux, Windows and Mac OS
• zls by @zigtools
  • Used by many zls developers to more efficiently work on zls

We'd like to take a second to thank all our awesome contributors and donators/backers/sponsors; if you have time or money to spare, consider partaking in either of these options - they help keep zls awesome for everyone!

MIT