public bool ResolveColumnReference(RangeVariable rangeVar)
{
if ((this.TableName == null) || rangeVar.IsVariable)
{
Expression columnExpression = rangeVar.GetColumnExpression(this.ColumnName);
if (columnExpression != null)
{
base.OpType = columnExpression.OpType;
base.nodes = columnExpression.nodes;
base.DataType = columnExpression.DataType;
return(true);
}
if (rangeVar.Variables != null)
{
string columnName = (this.TableName != null) ? string.Format("{0}.{1}", this.TableName, this.ColumnName) : this.ColumnName;
int i = rangeVar.FindColumn(columnName);
if (i == -1)
{
return(false);
}
if (rangeVar.GetColumn(i).GetParameterMode() == 4)
{
return(false);
}
base.OpType = rangeVar.IsVariable ? 6 : 7;
this.SetAttributesAsColumn(rangeVar, i);
return(true);
}
}
if (rangeVar.ResolvesTableName(this))
{
int i = rangeVar.FindColumn(this.ColumnName);
if (i != -1)
{
this.SetAttributesAsColumn(rangeVar, i);
return(true);
}
}
return(false);
}
private bool ResolvesDuplicateColumnReference(RangeVariable rangeVar)
{
if (this.TableName == null)
{
if (rangeVar.GetColumnExpression(this.ColumnName) != null)
{
return(false);
}
if (rangeVar.Variables != null)
{
int i = rangeVar.FindColumn(this.ColumnName);
if (i == -1)
{
return(false);
}
return(rangeVar.GetColumn(i).GetParameterMode() != 4);
}
}
if (!rangeVar.ResolvesTableName(this))
{
return(false);
}
return(rangeVar.FindColumn(this.ColumnName) != -1);
}
