////////////////////// decorateur

@MonDecorateur({
 optA: 'truc',
 optB: 'test'
})
class MaClasse { }

//////////////////// classe component

export class AppComponent {

  maPropriete:string = 'quelquechose';

  constructor (param:string, param2:string) {
	// instructions
  }
}

////////////////// ngModule de base

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { RootComponent } from './root.component';

@NgModule({
  imports: [
    BrowserModule
  ],
  declarations: [RootComponent],
  bootstrap: [RootComponent],
  providers: []
})

export class RootModule { }

///////////////// bootstrapping

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { RootModule } from './components/root.module';

platformBrowserDynamic().bootstrapModule(RootModule);