Class method binding

binds.js

function bound(object, key, descriptor) {
	let boundMethodId = Symbol('bound-method-'+key);
	let theMethod = descriptor.value;
	delete descriptor.value;
	delete descriptor.writable;

	descriptor.get = function() {
		//Memoize it per instance so we can remove listeners
		return this[boundMethodId] || (this[boundMethodId] = theMethod.bind(this));
	};
	return descriptor;
}

class Greeter {
	constructor(name) {
		this.name = name;
	}
	
	@bound greet1() {
		console.log('Hello, ' + this + '!');
	}
	
	greet2() {
		console.log("Hello, " + this + '!');
	}
	
	toString() {
		return this.name;
	}
}

var greeter = new Greeter('World');
setTimeout(greeter.greet1, 1);
setTimeout(greeter.greet2, 1);