removeRenderObjectChild method Null safety

  1. @protected
void removeRenderObjectChild(
  1. covariant RenderObject child,
  2. covariant Object? slot
)

Remove the given child from renderObject.

The given child is guaranteed to have been inserted at the given slot and have renderObject as its parent.

Implementation

@protected
void removeRenderObjectChild(covariant RenderObject child, covariant Object? slot) {
  assert(() {
    throw FlutterError.fromParts(<DiagnosticsNode>[
      ErrorSummary('RenderObjectElement.removeChildRenderObject() is deprecated.'),
      toDiagnosticsNode(
        name: 'super.removeChildRenderObject() was called on this Element',
        style: DiagnosticsTreeStyle.shallow,
      ),
      ErrorDescription(
        'removeChildRenderObject() has been deprecated in favor of '
        'removeRenderObjectChild(). See https://github.com/flutter/flutter/issues/63269 '
        'for details.',
      ),
      ErrorHint(
        'Rather than overriding removeChildRenderObject() in your '
        'RenderObjectElement subclass, override removeRenderObjectChild() instead, '
        "and DON'T call super.removeRenderObjectChild(). If you're implementing a "
        'new RenderObjectElement, you should override/implement '
        'insertRenderObjectChild(), moveRenderObjectChild(), and '
        'removeRenderObjectChild().',
      ),
    ]);
  }());
}