铁蟒:这会泄露内存吗?

For Each column In m_Columns

     Dim rawValue As String
     rawValue = line.Substring(column.FileColumnIndex.Value - 1, column.FileColumnEndIndex.Value - column.FileColumnIndex.Value + 1)

     If column.IncludeColumnFunction <> "" Then
        Dim scope = m_ScriptEngine.CreateScope
        scope.SetVariable("Line", line)
        scope.SetVariable("Row", targetRow)
        If Not CBool(m_ScriptEngine.Execute(column.IncludeColumnFunction, scope)) Then Continue For 'skip this column
    End If

    targetRow(column.DatabaseColumnName) = column.ParseValue(rawValue, targetRow)
Next

名为的字符串column.includeColumn函数从不更改给定列。它通常很简单,比如Row['Foo']=='Bar'。

我可以/应该缓存已编译的函数吗? 当我处理完scope变量时,是否应该以某种方式销毁它?