Class MyChild

packages/core/test/linker/change_detection_integration_spec.ts:1601–1648

      describe('calling init', () => {
        function initialize(options: Options) {
          @Component({
            selector: 'my-child',
            template: '',
            standalone: false,
          })
          class MyChild {
            private thrown = LifetimeMethods.None;

            @Input() inp: boolean | undefined;
            @Output() outp = new EventEmitter<any>();

            constructor() {}

            ngDoCheck() {
              this.check(LifetimeMethods.ngDoCheck);
            }
            ngOnInit() {
              this.check(LifetimeMethods.ngOnInit);
            }
            ngOnChanges() {
              this.check(LifetimeMethods.ngOnChanges);
            }
            ngAfterViewInit() {
              this.check(LifetimeMethods.ngAfterViewInit);
            }
            ngAfterContentInit() {
              this.check(LifetimeMethods.ngAfterContentInit);
            }

            private check(method: LifetimeMethods) {
              log(`MyChild::${LifetimeMethods[method]}()`);

              if ((options.childRecursion & method) !== 0) {
                if (logged.length < 20) {
                  this.outp.emit(null);
                } else {
                  fail(`Unexpected MyChild::${LifetimeMethods[method]} recursion`);
                }
              }
              if ((options.childThrows & method) !== 0) {
                if ((this.thrown & method) === 0) {
                  this.thrown |= method;
                  log(`<THROW from MyChild::${LifetimeMethods[method]}>()`);
                  throw new Error(`Throw from MyChild::${LifetimeMethods[method]}`);
                }
              }
            }
          }

          @Component({
            selector: 'my-component',