test-repo/tests/format/angular/control-flow/boundary.html

@boundary {
  <app-risky-component />
} @error {
  <p>Something went wrong!</p>
}

@boundary {
  <app-risky-component />
} @error {
  <p>Error occurred: {{ $error.message }}</p>
}

@boundary {
  <app-flaky-component />
} @error {
  <p>Loading failed.</p>
  <button (click)="$reset()">Try again</button>
}

@boundary {
  <app-risky-component />
} @error {
  <app-error-fallback [error]="err" />
}

@boundary {
  <app-risky-component />
} @error (let err; retry = $reset; when isNetworkError(err)) {
  <app-network-error [error]="err" />
  <button (click)="retry()">Retry</button>
} @error {
  <app-generic-error />
}

@boundary {
  <app-chart-dashboard />
} @error (let err; reset = $reset; when isRenderError(err)) {
  <p>Network issue. Check your connection.</p>
  <button (click)="reset()">Retry</button>
} @error {
  <p>An unexpected error occurred: {{ $error.message }}</p>
}

@boundary {
  <complex-chart [data]="data"/>
} @error (let err = $error; let r = $reset) {
  <p>Failed to load chart: {{err.message}}</p>
  <button (click)="r()">Retry</button>
}

@boundary {
  Outer Main
  @boundary {
    Inner Main
  } @error {
    Inner Fallback
  }
} @error {
  Outer Fallback
}

@defer {
  @boundary {
    <app-c1/>
  } @error {
    <span>Render error</span>
  }
} @error {
  <span>Load error</span>
}