This repository contains a C++ ABI implementation of the WebAssembly Component Model.

• Ubuntu 24.04
• MacOS 13
• MacOS 14 (Arm)
• Windows 2019
• Windows 2022

• Bool
• S8
• U8
• S16
• U16
• S32
• U32
• S64
• U64
• F32
• F64
• Char
• String
• utf8 String
• utf16 String
• latin1+utf16 String
• List
• Record
• Tuple
• Variant
• Enum
• Option
• Result
• Flags
• Own
• Borrow

• lower_flat_values
• lift_flat_values

• ABI
• WasmTime
• Wamr
• WasmEdge

This library is a header only library. To use it in your project, you can:

• Copy the contents of the include directory to your project.
• Use vcpkg to install the library and its dependencies.

• Component Model design and specification: Official Component Model specification.
• wit-bindgen c++ host: C++ host support for the WebAssembly Interface Types (WIT) Bindgen tool.