RenderConstrainedOverflowBox({RenderBox child, double minWidth, double maxWidth, double minHeight, double maxHeight, FractionalOffset alignment: FractionalOffset.center })

Creates a render object that lets its child overflow itself.

Source 

RenderConstrainedOverflowBox({
  RenderBox child,
  double minWidth,
  double maxWidth,
  double minHeight,
  double maxHeight,
  FractionalOffset alignment: FractionalOffset.center
}) : _minWidth = minWidth,
     _maxWidth = maxWidth,
     _minHeight = minHeight,
     _maxHeight = maxHeight,
     super(child: child, alignment: alignment);