Kraken Language Support for VS Code

Provides rich language support for the Kraken programming language.

Version: v0.2.0 — Aligned with Kraken language v0.9.2.

Features

• Syntax Highlighting — Full highlighting for .kr files
• Code Snippets — Quick templates for functions, structs, enums, classes, traits, and control flow
• Auto-Completion — Smart bracket, quote, and parenthesis pairing
• Code Folding — Collapse and expand code blocks
• Comment Support — Line (//), block (/* */), and doc comments (///, //!)
• Attribute Support — Highlighting for #[...] attributes

Syntax Highlighting

• Keywords: fn, let, mut, const, if, else, while, for, match, return, break, continue, defer, struct, enum, union, class, interface, trait, impl, type, pub, import, module, async, await, spawn, unsafe, where, static_assert, move, dyn, in
• Types: int, float, bool, string, str, bytes, void, i8–i64, u8–u64, f32, f64, char
• Operators: Arithmetic, comparison, logical, bitwise, assignment, and compound assignment
• Literals: Numbers (decimal, hex, binary, octal, float), strings, characters, booleans, null
• Comments: Line, block, and doc comments
• Attributes: #[...] annotations
• Functions: Function names and declarations

Code Snippets

Type these prefixes and press Tab to expand:

• fn — Function declaration
• pubfn — Public function
• main — Main function
• asyncfn — Async function
• struct — Struct definition
• enum — Enum definition
• union — Union definition
• class — Class definition
• interface — Interface definition
• trait — Trait definition
• impl — Impl block
• if — If statement
• ifelse — If-else statement
• while — While loop
• for — For loop
• match — Match expression
• let — Variable declaration
• letmut — Mutable variable
• defer — Defer block
• import — Import declaration
• module — Module declaration
• spawn — Spawn async task

Example

import std.io;

fn main() -> int {
    let message = "Hello, Kraken!";
    io.println(message);
    return 0;
}

Requirements

No additional requirements. This extension provides editor support only.

To compile Kraken code, you need the Kraken compiler.

Installation

From VS Code Marketplace

1. Open VS Code
2. Go to Extensions (Ctrl+Shift+X / Cmd+Shift+X)
3. Search for "Kraken Language"
4. Click Install

From VSIX

1. Download the .vsix file from Releases
2. Open VS Code
3. Go to Extensions
4. Click "..." menu → "Install from VSIX"
5. Select the downloaded file

Development

npm install
npm run package
code --install-extension kraken-lang-0.2.0.vsix

Contributing

Contributions are welcome. Please submit a Pull Request.

License

Apache-2.0 — See LICENSE for details.

Links

• Kraken Language
• Tree-sitter Grammar
• Language Server
• Report Issues