literally just a patcher

patcher.js

@@ -0,0 +1,26 @@
+function monkeyPatch(name, parentObj, patches) {
+	const injId   = Math.random().toString(36).slice(2).toUpperCase()
+	const before  = (patches["before"]  === undefined) ? (...args)=>args :  patches["before"];
+	const instead = (patches["instead"] === undefined) ? (...args)=>args : patches["instead"];
+	const after   = (patches["after"]   === undefined) ? (args, res)=>res :   patches["after"];
+	const handler = {
+		apply: (target, thisArg, args) => {
+			before(args);
+			res = (patches["instead"] === undefined) ? target(...args) : instead(...args);
+			return after(...args, res);
+		}
+	};
+	const prox = new Proxy(parentObj[name], handler);
+	const orig = parentObj[name];
+	parentObj[name] = prox;
+	const unpatch = () => {
+		parentObj[name] = orig;
+	}
+	parentObj[injId] = {
+		name:    name,
+		orig:    orig,
+		unpatch: unpatch
+	};
+	return unpatch;
+}
+module.exports = monkeyPatch