Some of the components of the visiting scope are visible in the following predefined ksh variables:
Current visiting scope
Current visiting load object
Current visiting file
Current visiting line number
Class to which $vfunc belongs
Current visiting function
All of the components of the current visiting scope stay compatible with one another. For example, if you visit a file that contains no functions, the current visiting source file is updated to the new file name and the current visiting function is updated to NULL.