public QuestionProdExpr(ProductionExpr expr, Segment segment)
: base(expr, segment)
{
}
public StarProdExpr(ProductionExpr expr, Segment segment)
: base(expr, segment)
{
}
public UnaryProdExpr(ProductionExpr expr, Segment segment)
: base(new Segment(expr, segment))
{
this.expr = expr;
}
