2 references to AppendFormatHelper
System.Private.CoreLib (2)
src\libraries\System.Private.CoreLib\src\System\IO\StreamWriter.cs (1)
508vsb.AppendFormatHelper(null, format!, args); // AppendFormatHelper will appropriately throw ArgumentNullException for a null format
src\libraries\System.Private.CoreLib\src\System\String.Manipulation.cs (1)
543sb.AppendFormatHelper(provider, format, args);