Tup.Cobar4Net.Parser.Recognizer.Mysql.Syntax.MySqlDdlParser.IndexDefinition C# (CSharp) Method

        private IndexDefinition IndexDefinition()
        {
            var indexType = IndexType.None;
            IList<IndexColumnName> columns = new List<IndexColumnName>(1);
            if (lexer.Token() == MySqlToken.KwUsing)
            {
                lexer.NextToken();
                var tp = MatchIdentifier("BTREE", "HASH");
                indexType = tp == 0 ? IndexType.Btree : IndexType.Hash;
            }
            Match(MySqlToken.PuncLeftParen);
            for (var i = 0; lexer.Token() != MySqlToken.PuncRightParen; ++i)
            {
                if (i > 0)
                {
                    Match(MySqlToken.PuncComma);
                }
                var indexColumnName = IndexColumnName();
                columns.Add(indexColumnName);
            }
            Match(MySqlToken.PuncRightParen);
            var options = IndexOptions();
            return new IndexDefinition(indexType, columns, options);
        }