Better class macro in Sweet.js

gistfile1

macro class {
    case $className { constructor $constParam $constBody $rest ... } => {
        function $className $constParam $constBody

        class $className { $rest ... }
    }
    case $className { private_function $pMethodName $pMethodParam $pMethodBody $rest ...} => {
        function $pMethodName $pMethodParam $pMethodBody

        class $className { $rest ... }
    }
    case $className { $($methodName $methodParam $methodBody) ... } => {
        $($className.prorotype.$methodName = function $methodName $methodParam $methodBody;) ...
    }
}

class Person {
    constructor(name) {
        this.name = name;
    }
    private_function myMethod() { console.log('private'); }
    private_function otherPrivate() { console.log('private'); }

    say(msg) {
        console.log(this.name + " says: " + msg);
    }

    other(foo) {
        console.log("other method");
    }
}