Deveel.Data.Sql.Expressions.SqlExpressionVisitor.Visit C# (CSharp) Method

        public virtual SqlExpression Visit(SqlExpression expression)
        {
            if (expression == null)
                return null;

            var expressionType = expression.ExpressionType;
            switch (expressionType) {
                case SqlExpressionType.Add:
                case SqlExpressionType.Subtract:
                case SqlExpressionType.Divide:
                case SqlExpressionType.Multiply:
                case SqlExpressionType.Modulo:
                case SqlExpressionType.And:
                case SqlExpressionType.Or:
                case SqlExpressionType.XOr:
                case SqlExpressionType.Equal:
                case SqlExpressionType.NotEqual:
                case SqlExpressionType.Like:
                case SqlExpressionType.NotLike:
                case SqlExpressionType.GreaterThan:
                case SqlExpressionType.GreaterOrEqualThan:
                case SqlExpressionType.SmallerThan:
                case SqlExpressionType.SmallerOrEqualThan:
                case SqlExpressionType.Is:
                case SqlExpressionType.IsNot:
                    return VisitBinary((SqlBinaryExpression) expression);
                case SqlExpressionType.Negate:
                case SqlExpressionType.Not:
                case SqlExpressionType.UnaryPlus:
                    return VisitUnary((SqlUnaryExpression) expression);
                case SqlExpressionType.Cast:
                    return VisitCast((SqlCastExpression) expression);
                case SqlExpressionType.Reference:
                    return VisitReference((SqlReferenceExpression) expression);
                case SqlExpressionType.VariableReference:
                    return VisitVariableReference((SqlVariableReferenceExpression) expression);
                case SqlExpressionType.Assign:
                    return VisitAssign((SqlAssignExpression) expression);
                case SqlExpressionType.FunctionCall:
                    return VisitFunctionCall((SqlFunctionCallExpression) expression);
                case SqlExpressionType.Constant:
                    return VisitConstant((SqlConstantExpression) expression);
                case SqlExpressionType.Conditional:
                    return VisitConditional((SqlConditionalExpression) expression);
                case SqlExpressionType.Query:
                    return VisitQuery((SqlQueryExpression) expression);
                case SqlExpressionType.Tuple:
                    return VisitTuple((SqlTupleExpression) expression);
                case SqlExpressionType.All:
                case SqlExpressionType.Any:
                    return VisitQuantified((SqlQuantifiedExpression) expression);
                default:
                    return expression.Accept(this);
            }
        }

        private static void Visit(SqlExpression exp, bool equals = false)
        {
            var visitor = new SqlExpressionVisitor();
            var result  = exp.Accept(visitor);

            Assert.IsType(exp.GetType(), result);
            Assert.Equal(equals, result.Equals(exp));

            result = visitor.Visit(exp);
            Assert.IsType(exp.GetType(), result);
            Assert.Equal(equals, result.Equals(exp));
        }