implementing-jsc-classes-zig

Bind JavaScript to Zig-based Bun APIs using .classes.ts interfaces.

Updated Dec 27, 2025

Search Tags:#api #javascript #bun #zig #bindings #binding-generation

Ready to run

npx skills add https://github.com/brendadeeznuts1111/mybundocs11 --skill implementing-jsc-classes-zig-brendadeeznuts1111

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: implementing-jsc-classes-zig
Source: https://github.com/brendadeeznuts1111/mybundocs11/tree/main/bun-docs-repo/.claude/skills/implementing-jsc-classes-zig
Command: npx skills add https://github.com/brendadeeznuts1111/mybundocs11 --skill implementing-jsc-classes-zig-brendadeeznuts1111

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps developers bridge JavaScript interfaces to Zig-based Bun bindings by defining .classes.ts and implementing behavior in Zig, enabling seamless interop and API exposure.

Core Features & Use Cases

Define JS bindings via .classes.ts to describe the public API surface.
Implement the runtime logic in Zig (.zig) and connect it to the generated glue code.
Use Case: Add a new Bun API binding backed by Zig, then expose it to JavaScript with a cohesive, cross-language interface.

Quick Start

Create a .classes.ts descriptor with define({ ... }), implement the corresponding .zig binding, and update generated_classes_list.zig to register the new API, then build to generate the bindings.

Frequently Asked Questions about implementing-jsc-classes-zig

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I expose Zig code to JavaScript in Bun?▼

You expose Zig code to JavaScript in Bun by defining the API surface in a .classes.ts file and implementing the runtime logic in a .zig file. This bridges the two languages so your native code is callable from JS.

What is the process for adding new Bun API bindings backed by Zig?▼

Adding new Bun API bindings requires creating a .classes.ts interface descriptor, implementing the logic in a .zig file, and updating generated_classes_list.zig to register the API. Building the project then generates the necessary glue code.

How does the .classes.ts file work with Zig bindings?▼

The .classes.ts file uses a define({ ... }) descriptor to declare the public JavaScript API surface. This descriptor is paired with a Zig implementation to generate cross-language glue code and expose the API to JS.

Do I need to manually update the build system when creating JavaScript to Zig bindings?▼

Yes, when creating JavaScript to Zig bindings you must manually update the binding registry. You need to update generated_classes_list.zig so the build system recognizes and exposes the new API to JavaScript.

Can I define Bun API bindings without writing cross-language definitions?▼

No, you cannot define Bun API bindings without cross-language definitions. The process inherently requires defining the interface in .classes.ts and implementing the behavior in Zig to ensure seamless interop and API exposure.