private ChildrenExpressionVisitor childrenExpressionVisitor() { if (childrenExpressionVisitor == null) { childrenExpressionVisitor = new ChildrenExpressionVisitor(); } return childrenExpressionVisitor; }
private ChildrenExpressionVisitor childrenExpressionVisitor() { if (childrenExpressionVisitor == null) { childrenExpressionVisitor = new ChildrenExpressionVisitor(); } return childrenExpressionVisitor; }