First commit

framework/unify/multiExtend.js

@@ -0,0 +1,25 @@
+
+
+export default (baseClass, ...mixins) => {
+    class base extends baseClass {
+        constructor (...args) {
+            super(...args);
+            mixins.forEach((mixin) => {
+                copyProps(this,(new mixin));
+            });
+        }
+    }
+    let copyProps = (target, source) => {  // this function copies all properties and symbols, filtering out some special ones
+        Object.getOwnPropertyNames(source)
+              .concat(Object.getOwnPropertySymbols(source))
+              .forEach((prop) => {
+                 if (!prop.match(/^(?:constructor|prototype|arguments|caller|name|bind|call|apply|toString|length)$/))
+                    Object.defineProperty(target, prop, Object.getOwnPropertyDescriptor(source, prop));
+               })
+    }
+    mixins.forEach((mixin) => { // outside contructor() to allow aggregation(A,B,C).staticFunction() to be called etc.
+        copyProps(base.prototype, mixin.prototype);
+        copyProps(base, mixin);
+    });
+    return base;
+}