How is memory safety handled in these bindings?

Memory is managed through a 'finalize' method which is called by the JavaScriptCore Garbage Collector when the JS object is destroyed, allowing the Zig implementation to free resources via 'deinit'.

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

The .classes.ts file serves as a definition schema that Bun's binding generator uses to automatically create the C++ and Zig glue code required for JavaScriptCore integration.

Does this skill help with argument parsing?

Yes, it provides patterns for accessing the CallFrame to retrieve JS arguments, handle null/undefined checks, and convert them into Zig types.

Can I use this for any Zig project?

This skill is specifically designed for the Bun runtime environment and projects utilizing Bun's internal JSC binding architecture.

Bun JSC Zig Class Implementer

Name: Bun JSC Zig Class Implementer
Author: zhcndoc

byzhcndoc

API開発

Streamlines the creation of high-performance JavaScript classes in Bun using Zig and JavaScriptCore bindings.

概要

This skill facilitates the low-level integration between Zig and JavaScriptCore (JSC) by leveraging Bun's internal code generation system. It guides developers through the process of defining class interfaces in `.classes.ts` files and implementing the corresponding logic in Zig. It provides standardized patterns for memory management via GC finalizers, property caching for performance, and robust error handling using Bun's internal JSError types. This is an essential tool for contributors building core Bun APIs or developers creating high-performance native extensions that require deep integration with the JSC engine.

主な機能

Scaffolds TypeScript class definitions for JavaScriptCore integration
Generates boilerplate Zig implementation structures for methods and getters
Implements memory safety patterns using deinit and finalize hooks
Manages CallFrame and JSGlobalObject interaction for argument handling
0 GitHub stars
Configures property caching via WriteBarriers for optimized JS access

ユースケース

Optimizing existing JS-to-native bindings for better memory and CPU efficiency
Bridging high-performance Zig logic to the JavaScript ecosystem
Implementing new Web APIs or native modules within the Bun runtime

概要

主な機能

Scaffolds TypeScript class definitions for JavaScriptCore integration
Generates boilerplate Zig implementation structures for methods and getters
Implements memory safety patterns using deinit and finalize hooks
Manages CallFrame and JSGlobalObject interaction for argument handling
0 GitHub stars
Configures property caching via WriteBarriers for optimized JS access

ユースケース

Optimizing existing JS-to-native bindings for better memory and CPU efficiency
Bridging high-performance Zig logic to the JavaScript ecosystem
Implementing new Web APIs or native modules within the Bun runtime