internal int FindResultInfo(Column destItem
, bool explicitOnly = false
, bool ignoreCase = true)
{
var ret = -1;
IResultInfoInternal findItem = null;
for (var i = 0; i < this.Items.Count; ++i)
{
var resultInfo = this.Items[i];
if (explicitOnly && !resultInfo.ExplicitDecl)
{
continue;
}
if (resultInfo.IsDirectSource(destItem, ignoreCase))
{
// 抽出元SELECT項目の候補が2つ以上ある場合は例外を返す
if (findItem == null)
{
findItem = resultInfo;
ret = i;
}
else
{
throw new InvalidASTStructureError(
"Ambiguous column name: " + resultInfo.ColumnAliasName);
}
}
}
return(ret);
}
internal void Insert(int index, IResultInfoInternal item)
{
if (index < 0)
{
index = reverseIndex(index);
}
this.Items.Insert(index, item);
}
internal void Add(IResultInfoInternal item)
{
this.Items.Add(item);
}