boolean () { if (myChecked) { return myNested; } myChecked = true; if (myParents != null) { PsiFragment parent1 = myParents[0]; PsiFragment parent2 = myParents[1]; if (parent1 != null) { myNested |= parent1.myDuplicate || parent1.isNested(); if (parent2 != null) { myNested |= parent2.myDuplicate || parent2.isNested(); } } } return myNested; }