96 lines
1.8 KiB
TypeScript
96 lines
1.8 KiB
TypeScript
import { Injectable } from '@angular/core';
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/// Model ///
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export class Car {
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name = 'Avocado Motors';
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constructor(public engine: Engine, public tires: Tires) { }
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get description() {
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return `${this.name} car with ` +
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`${this.engine.cylinders} cylinders and ${this.tires.make} tires.`;
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}
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}
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export class Engine {
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cylinders = 4;
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}
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export class Tires {
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make = 'Flintstone';
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model = 'Square';
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}
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//// Engine services ///
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@Injectable()
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export class EngineService {
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id = 'E1';
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getEngine() { return new Engine(); }
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}
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@Injectable()
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export class EngineService2 {
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id = 'E2';
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getEngine() {
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const eng = new Engine();
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eng.cylinders = 8;
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return eng;
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}
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}
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//// Tire services ///
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@Injectable()
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export class TiresService {
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id = 'T1';
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getTires() { return new Tires(); }
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}
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/// Car Services ///
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@Injectable()
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export class CarService {
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id = 'C1';
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constructor(
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protected engineService: EngineService,
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protected tiresService: TiresService) { }
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getCar() {
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return new Car(
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this.engineService.getEngine(),
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this.tiresService.getTires());
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}
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get name() {
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return `${this.id}-${this.engineService.id}-${this.tiresService.id}`;
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}
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}
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@Injectable()
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export class CarService2 extends CarService {
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id = 'C2';
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constructor(
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protected engineService: EngineService,
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protected tiresService: TiresService) {
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super(engineService, tiresService);
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}
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getCar() {
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const car = super.getCar();
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car.name = 'BamBam Motors, BroVan 2000';
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return car;
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}
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}
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@Injectable()
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export class CarService3 extends CarService2 {
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id = 'C3';
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constructor(
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protected engineService: EngineService,
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protected tiresService: TiresService) {
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super(engineService, tiresService);
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}
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getCar() {
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const car = super.getCar();
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car.name = 'Chizzamm Motors, Calico UltraMax Supreme';
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return car;
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}
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}
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