internal override SqlExpression VisitUserColumn(SqlUserColumn suc)
{
if (this.ingoreExternalRefs && !this.nodeMap.ContainsKey(suc))
{
return(suc);
}
return(new SqlUserColumn(suc.ClrType, suc.SqlType, suc.Query, suc.Name, suc.IsRequired, suc.SourceExpression));
}
internal override SqlExpression VisitUserColumn(SqlUserColumn suc)
{
SqlExpression result = base.VisitUserColumn(suc);
if (result == suc) // must be external
{
return(ExtractParameter(result));
}
return(result);
}
internal override SqlUserQuery VisitUserQuery(SqlUserQuery suq)
{
var list = new List <SqlExpression>(suq.Arguments.Count);
foreach (var argument in suq.Arguments)
{
list.Add(VisitExpression(argument));
}
SqlExpression projection = VisitExpression(suq.Projection);
var sqlUserQuery = new SqlUserQuery(suq.QueryText, projection, list, suq.SourceExpression);
nodeMap[suq] = sqlUserQuery;
foreach (var column in suq.Columns)
{
var sqlUserColumn = new SqlUserColumn(column.ClrType, column.SqlType, column.Query, column.Name, column.IsRequired, column.SourceExpression);
nodeMap[column] = sqlUserColumn;
sqlUserQuery.Columns.Add(sqlUserColumn);
}
return(sqlUserQuery);
}
internal override SqlUserQuery VisitUserQuery(SqlUserQuery suq)
{
List <SqlExpression> args = new List <SqlExpression>(suq.Arguments.Count);
foreach (SqlExpression expr in suq.Arguments)
{
args.Add(this.VisitExpression(expr));
}
SqlExpression projection = this.VisitExpression(suq.Projection);
SqlUserQuery n = new SqlUserQuery(suq.QueryText, projection, args, suq.SourceExpression);
this.nodeMap[suq] = n;
foreach (SqlUserColumn suc in suq.Columns)
{
SqlUserColumn dupSuc = new SqlUserColumn(suc.ClrType, suc.SqlType, suc.Query, suc.Name, suc.IsRequired, suc.SourceExpression);
this.nodeMap[suc] = dupSuc;
n.Columns.Add(dupSuc);
}
return(n);
}
internal virtual SqlExpression VisitUserColumn(SqlUserColumn suc)
{
return(suc);
}