/** Creates a ASTConstant whose value of applying a unary operator to its arguments. */
public ASTConstant buildConstantNode(Operator op, Node child1)
throws IllegalArgumentException, ParseException {
return buildConstantNode(op.getPFMC(), new Node[] {child1});
}
/** Creates a ASTConstant whose value of applying the operator to its arguments. */
public ASTConstant buildConstantNode(Operator op, Node children[])
throws IllegalArgumentException, ParseException {
return buildConstantNode(op.getPFMC(), children);
}