insertRenderObjectChild method Null safety

  1. @override
void insertRenderObjectChild(
  1. covariant RenderBox child,
  2. covariant S slot
)
override

Insert the given child into renderObject at the given slot.

The semantics of slot are determined by this element. For example, if this element has a single child, the slot should always be null. If this element has a list of children, the previous sibling element wrapped in an IndexedSlot is a convenient value for the slot.

Implementation

@override
void insertRenderObjectChild(RenderBox child, S slot) {
  renderObject._setChild(child, slot);
  assert(renderObject._slotToChild[slot] == child);
}