invokeLayoutUpsert method

RenderBox? invokeLayoutUpsert(
  1. Object? slot
)

Implementation

RenderBox? invokeLayoutUpsert(Object? slot) {
  if (element == null) return null;
  RenderBox? child = renderBoxes[slot];
  if (child != null) return child;
  renderer?.invokeLayoutCallback((constraints) {
    child = buildChild(slot);
  });
  return child;
}