YuriyGuts.RegexBuilder.RegexNodeAlternation.RegexNodeAlternation C# (CSharp) Method

        public RegexNodeAlternation(params RegexNode[] expressions)
        {
            if (expressions == null)
            {
                throw new ArgumentNullException("expressions", "Expression list cannot be null.");
            }
            for (int i = 0; i < expressions.Length; i++)
            {
                if (expressions[i] == null)
                {
                    throw new ArgumentNullException("expressions", "All alternating expressions must be not null.");
                }
            }
            this.expressions = expressions;
        }