package enumeration2;

public class ExprFactory {
	private ExprFactory() {}
	static public Expr newConst(int v) {
		return new Const(v);
	}
	static public Expr newPlus(Expr l, Expr r) {
		return new BinOp(l, Op.ADD, r);
	}
	static public Expr newMinus(Expr l, Expr r) {
		return new BinOp(l, Op.SUB, r);
	}
	static public Expr newMult(Expr l, Expr r) {
		return new BinOp(l, Op.MUL, r);
	}
	static public Expr newQuot(Expr l, Expr r) {
		return new BinOp(l, Op.DIV, r);
	}
}