#mwac

#Positioning (mwac + walyze)

• mwac: WAC API / composition (bundler role)
• walyze: wasm/component optimizer + profiler (minifier role)

• mwac is responsible for composition only (dependency resolution, instantiate/export planning, component assembly).
• binary-level optimization and profiling belong to walyze.
• dependency direction is fixed to walyze -> mwac (no direct mwac -> walyze dependency).
• integration contract is bytes I/O: mwac emits wasm/component bytes, then walyze optimizes/analyzes those bytes.

#Features

• .wac script parsing and resolution
• Component Model binary (.wasm) parsing (import/export extraction, type analysis)
• plug — satisfy a component's imports with another component's exports
• compose — compose multiple components based on a WAC script
• Dead Code Elimination (composition-plan level pruning of unused instances)
• WIT interface type compatibility checking

#Recommended Pipeline (Bundler + Minifier)

1. Compose components with mwac (produce .component.wasm)
2. Optimize/profile the output with walyze

#Project Structure

src/
├── component/    # Component Model binary parser, plug, encoder
└── composer/     # WAC parser, resolver, composer, DCE

examples/
├── hello/        # Single component example
├── compose/      # Multi-component composition example
├── core-module/  # Core Module plug example
└── wac/          # WAC script example

#WAC Script Example

package example:composition;

let hello = new example:hello {};
let greeter = new example:greeter {
  hello: hello.hello,
};

export greeter.greet;

#Development

just           # check + test
just fmt       # format code
just check     # type check
just test      # run tests
just run       # run main

#Dependencies

• MoonBit toolchain
• mizchi/wit — WIT parser

#License