Injecting foos and bars with di

ditest.dart

import 'package:di/di.dart';
import 'package:di/dynamic_injector.dart';

void main() {
  var modules = [new SimpleModule(), new EnterpriseModule()]; // last one wins!
  var di = new DynamicInjector(modules:modules);
  
  
  var foo = di.get(Foo);
  var bar = di.get(Bar);
  print(foo);
  print(bar);
    
}

class SimpleModule extends Module {
  SimpleModule() {
    type(Bar);
    type(Foo);
      
  }
}

class EnterpriseModule extends Module {
  EnterpriseModule() {
    type(Foo);
    factory(Bar, (_) => new EnterpriseBar());
  }
}

class Bar {
  static int barCount = 0;
  
  Bar() {
    barCount++;
    print("Creating bar: $barCount");
  }
  
  toString() => "I am bar: $barCount";
}

class Foo {
  static int fooCount = 0;
  Bar bar;
  
  Foo(Bar this.bar) {
    fooCount++;
    print("Created Foo: $fooCount");
  }
  
  toString() => "I am a foo: $fooCount.  My bar is: $bar";
  
}

class EnterpriseBar implements Bar {
  static int barCount = 0;
  EnterpriseBar() {
    barCount++;
    print("Created Enterprise Bar: $barCount");
  }
  
  toString() => "I am a an EnterpriseBar: $barCount.  See me ROAR";
}