MoonBit FFI

A lightweight utility library for converting between C‐style null-terminated byte strings (Bytes) and MoonBit String values.

[]()

Features

• from_cstr: Convert a null-terminated Bytes to a MoonBit String (drops

• to_cstr: Convert a MoonBit String to null-terminated Bytes.

Installation

Add justjavac/ffi to your dependencies:

moon update
moon add justjavac/ffi

Usage

// Convert Bytes → String
let data = b"Hello, world!\x00"
let s = @ffi.from_cstr(data)
assert_eq!(s, "Hello, world!")

// Convert String → Bytes
let cstr = @ffi.to_cstr("Hello, world!")
assert_eq!(cstr, data)

Supported Backends

• Wasm & WasmGC
• JavaScript
• Native
• LLVM

Development

Build the library and run tests (including docs):

moon build
moon test --doc

License

This project is licensed under the MIT License.\ © justjavac