feat(ConfigContainer): now uses Proxy to create proxy class

Author: mdreizin

.babelrc

@@ -7,7 +7,11 @@
     }
   },
   "presets": [
-    "env"
+    ["env", {
+      "targets": {
+        "node": 6
+      }
+    }]
   ],
   "plugins": [
     ["babel-plugin-transform-builtin-extend", {

package.json

@@ -66,5 +66,8 @@
     "lodash": "^4.17.4",
     "recursive-iterator": "^2.0.3",
     "yargs-parser": "^7.0.0"
+  },
+  "engines": {
+    "node": ">=6.0.0"
   }
 }

src/ConfigContainer.js

@@ -103,10 +103,14 @@ class ConfigContainer {
 
     /**
      * @param {*} T
-     * @returns {Function}
+     * @returns {Proxy<T>}
      */
     proxy(T) {
-        return () => this.resolve(T);
+        return new Proxy(function() {}, {
+            construct: () => {
+                return this.resolve(T);
+            }
+        });
     }
 }