tags-table-computed-list

tags-table-computed-list is a variable defined in `etags.el'.
Its value is

nil

Documentation:
List of tags tables to search, computed from `tags-table-list'.
This includes tables implicitly included by other tables. The list is not
always complete: the included tables of a table are not known until that
table is read into core. An element that is t is a placeholder
indicating that the preceding element is a table that has not been read
into core and might contain included tables to search.
See `tags-table-check-computed-list'.