Migration datamodels !

node_modules/es5-ext/function/#/copy.js

@@ -0,0 +1,23 @@
+"use strict";
+
+var mixin         = require("../../object/mixin")
+  , validFunction = require("../valid-function");
+
+module.exports = function () {
+	validFunction(this);
+
+	var args = [];
+	for (var i = 0; i < this.length; ++i) args.push("arg" + (i + 1));
+	// eslint-disable-next-line no-new-func
+	var fn = new Function(
+		"fn",
+		"return function " +
+			(this.name || "") +
+			"(" +
+			args.join(", ") +
+			") { return fn.apply(this, arguments); };"
+	)(this);
+	try { mixin(fn, this); }
+	catch (ignore) {}
+	return fn;
+};