fix(container): enable autoregister of non-functions

Fixes #31

src/container.js

@@ -101,12 +101,16 @@ export class Container {
       throw new Error('fn cannot be null or undefined.')
     }
 
-    registration = Metadata.get(Metadata.registration, fn);
+    if(typeof fn === 'function'){
+      registration = Metadata.get(Metadata.registration, fn);
 
-    if(registration !== undefined){
-      registration.register(this, key || fn, fn);
+      if(registration !== undefined){
+        registration.register(this, key || fn, fn);
+      }else{
+        this.registerSingleton(key || fn, fn);
+      }
     }else{
-      this.registerSingleton(key || fn, fn);
+      this.registerInstance(fn, fn);
     }
   }
 

test/container.spec.js

@@ -104,6 +104,24 @@ describe('container', () => {
       expect(app1.logger).toBe(app2.logger);
     });
 
+    it('automatically configures non-functions as instances', () => {
+      var someObject = {};
+
+      class App1 {
+        constructor(something) {
+          this.something = something;
+        }
+      }
+
+      inject(someObject)(App1);
+
+
+      var container = new Container();
+      var app1 = container.get(App1);
+
+      expect(app1.something).toBe(someObject);
+    });
+
     it('configures singleton via api', () => {
       class Logger {}