added javascript support

Author: Umed Khudoiberdiev

sample/sample4-require/BeanFactory.ts renamed to sample/sample4-javascript/BeanFactory.js

@@ -0,0 +1,22 @@
+import {BeanFactory} from "./BeanFactory";
+import {SugarFactory} from "./SugarFactory";
+import {WaterFactory} from "./WaterFactory";
+
+export class CoffeeMaker {
+
+    constructor(container) {
+        this.beanFactory  = container.get(BeanFactory);
+        this.sugarFactory = container.get(SugarFactory);
+        this.waterFactory = container.get(WaterFactory);
+        this.authorizationToken = container.get("authorizationToken");
+    }
+
+    make() {
+        this.beanFactory.create();
+        this.sugarFactory.create();
+        this.waterFactory.create();
+
+        console.log("coffee is made. Authorization token: " + this.authorizationToken);
+    }
+
+}

sample/sample4-javascript/CoffeeMaker.js

@@ -0,0 +1,7 @@
+export class SugarFactory {
+
+    create() {
+        console.log("sugar created");
+    }
+
+}

sample/sample4-javascript/SugarFactory.js

@@ -0,0 +1,7 @@
+export class WaterFactory {
+
+    create() {
+        console.log("water created");
+    }
+
+}

sample/sample4-javascript/WaterFactory.js

@@ -0,0 +1,8 @@
+import "reflect-metadata";
+import {Container} from "../../src/index";
+import {CoffeeMaker} from "./CoffeeMaker";
+
+Container.of("my-container").set("authorizationToken", "!@#$%^&*");
+let coffeeMaker = Container.of("my-container").get(CoffeeMaker);
+console.log(coffeeMaker);
+coffeeMaker.make();

sample/sample4-javascript/app.js

@@ -292,6 +292,13 @@ export class ContainerInstance {
                 throw new MissingProvidedServiceTypeError(identifier);
 
             params.unshift(null);
+
+            // if there are no constructor parameters in the class then pass a container instance into it
+            // this allows us to support javascript where we don't have decorators and emitted metadata about dependencies
+            // need to be injected, and user can use provided container to get instances he needs
+            if (params.length === 1)
+                params.push(this);
+
             service.value = new (type.bind.apply(type, params))();
         }