Notes on functional webpack plugin creation

gistfile1.txt

const createClass = () => {
    return class {
        constructor(options) { this.options = options || {}; }
    };
}

const Plugin = (x) => (
    return {
        map: f => Plugin(f(x)),
        fold: f => f(x),
        inspect: () => `Plugin(${x})`
    };
);

const Foo = createClass();
const bar = new Foo();
console.log(bar);

// WHAT IT TAKES NOW
class SomePlugin {
    constructor(options) {
        this.options = options || {};
    }

    apply(compiler) {
        compiler.plugin("run", (compiler, callback) => {
            console.log("THE WEBPACK COMPILER JUST STARTED");
        });
    }
}