verilog-preserve-modi-cache
verilog-preserve-modi-cache is a Lisp macro in `verilog-mode.el
'.
(verilog-preserve-modi-cache &rest BODY)
Execute the BODY forms, allowing cache preservation within BODY.
This means that changes to the buffer will not result in the cache being
flushed. If the changes affect the modsig state, they must call the
modsig-cache-add-* function, else the results of later calls may be
incorrect. Without this, changes are assumed to be adding/removing signals
and invalidating the cache.