Allows to give a function as default configuration

Author: baflo

Diff for: package-lock.json

@@ -19,12 +19,10 @@
     "reflect-metadata": "^0.1.12"
   },
   "dependencies": {
-    "debug": "^3.1.0",
-    "lodash": "^4.17.11"
+    "debug": "^3.1.0"
   },
   "devDependencies": {
     "@types/debug": "^4.1.2",
-    "@types/lodash": "^4.14.121",
     "gulp": "^3.9.1",
     "gulp-sourcemaps": "^1.12.1",
     "gulp-tslint": "^8.1.2",

Diff for: package.json

@@ -1,5 +1,3 @@
-import cloneDeep from "lodash/cloneDeep";
-
 import { interfaces as inversifyInterfaces } from "inversify";
 import {
   ComponentRegistry as ComponentRegistryInterface,
@@ -45,7 +43,7 @@ export class ComponentRegistry implements ComponentRegistryInterface, LookupServ
 
   addFromDescriptor(descriptor: ComponentDescriptor) {
     let interfaces = descriptor.hasOwnProperty("interfaces") ? descriptor.interfaces : {};
-    let defaultConfig = descriptor.hasOwnProperty("defaultConfiguration") ? cloneDeep(descriptor.defaultConfiguration) : {};
+    let defaultConfig = descriptor.hasOwnProperty("defaultConfiguration") ? (typeof descriptor.defaultConfiguration === "function" ? descriptor.defaultConfiguration() : descriptor.defaultConfiguration) : {};
     this.add(new ComponentImpl(descriptor.name, interfaces, defaultConfig));
 
     debug("Registering bindings for " + descriptor.name + "..");

Diff for: src/component/registry.ts

@@ -143,7 +143,7 @@ export interface ComponentBinder {
 export interface ComponentDescriptor<OptionalConfiguration = {}> {
   name: string;
   interfaces?: InterfaceDescriptor;
-  defaultConfiguration?: OptionalConfiguration;
+  defaultConfiguration?: OptionalConfiguration | (() => OptionalConfiguration);
   bindings: BindingDescriptor;
 }