Can I use this to add new methods to existing Bun objects?

Yes, by defining the method in the .classes.ts file and implementing the corresponding logic in the Zig struct, you can extend Bun's built-in capabilities.

What is 'property caching' in Bun's Zig bindings?

Caching allows property values to be stored and retrieved efficiently via WriteBarriers, reducing the overhead of repeatedly calculating or fetching values across the Zig/JS bridge.

What is the purpose of the .classes.ts file?

The .classes.ts file acts as a definition schema that describes the JavaScript interface (methods, properties, constructors) which Bun's generator then uses to create C++ and Zig glue code.

How does this skill handle memory management?

It implements patterns for Zig's deinit and finalize methods, ensuring that native resources are properly released when the JavaScript object is garbage collected by JSC.

Bun JSC Zig Bindings

Name: Bun JSC Zig Bindings
Author: xhochy

byxhochy

0•

API 开发

Generates high-performance JavaScript classes in Bun using Zig bindings and JavaScriptCore integration.

This skill provides a standardized framework for extending Bun's runtime by implementing JavaScript APIs directly in Zig. It automates the complex boilerplate associated with JavaScriptCore (JSC) integration through .classes.ts definitions and corresponding Zig structs. It is particularly useful for developers building low-level system APIs or performance-critical modules, as it handles memory management via GC finalization, property caching with WriteBarriers, and seamless error propagation across the JS-Zig boundary.

主要功能

01Standardized JS-to-Zig error handling and argument parsing

02Optimized property caching using JSC WriteBarriers

03Automatic generation of C++ and Zig bindings for JavaScriptCore

04Schema-driven class generation via .classes.ts definitions

05Advanced memory management with GC finalization and deinit logic

060 GitHub stars

使用场景

01Creating high-performance Zig modules with direct JavaScript exposure

02Managing native system resources through the JavaScriptCore garbage collector

03Implementing native Web or Node.js APIs within the Bun runtime

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add xhochy/bun-1.3.7 implementing-jsc-classes-zig

For use in Claude.ai and ChatGPT

Download Skill