package interpreter;

/**
 * NonTerminalExpression — subtraction: left - right.
 */
public class SubtractExpression implements Expression {
    private final Expression left;
    private final Expression right;

    public SubtractExpression(Expression left, Expression right) {
        this.left = left;
        this.right = right;
    }

    @Override
    public int interpret() {
        return left.interpret() - right.interpret();
    }
}