bool ignoringSemantics

Whether the semantics of this render object is ignored when compiling the semantics tree.

If null, defaults to value of ignoring.

See SemanticsNode for additional information about the semantics tree.

Source 

bool get ignoringSemantics => _ignoringSemantics;
void ignoringSemantics=(bool value)

Source 

set ignoringSemantics(bool value) {
  if (value == _ignoringSemantics)
    return;
  bool oldEffectiveValue = _effectiveIgnoringSemantics;
  _ignoringSemantics = value;
  if (oldEffectiveValue != _effectiveIgnoringSemantics)
    markNeedsSemanticsUpdate();
}