/// <summary> /// Instantiate expression tree from tokens. /// </summary> private static FilterExpressionRoot CompileFilters(IEnumerable<Token> token) { var reader = new TokenReader(token); var op = CompileL0(reader); if (reader.IsRemainToken) throw new FilterQueryException("Invalid token: " + reader.Get(), reader.RemainQuery); return new FilterExpressionRoot() { Operator = op }; }