deregister_printer

[sidarth16]

This function would be helpful to de-register a printer class from the list of _printers already registered with the slither object.

[0xalpharush]

What is the use case? Can't you only register specific detectors and leave out the ones that are not desired?

[sidarth16]

What is the use case? Can't you only register specific detectors and leave out the ones that are not desired?

The major issue it solves is the reusing of the same slither Object for multiple printer and detector classes.
Example:

from slither.detectors.all_detectors import *
from slither.slither import Slither

sl = Slither("<contract_address>")

detectors = [
    TxOrigin, ReentrancyBenign, ReentrancyEth, 
    UncheckedLowLevel, UncheckedTransfer, UncheckedSend
]
for d in detectors:
    sl.register_detector(d)  
r1 = sl.run_detectors()

# Now I no more want TxOrigin in the context slither object detectors

sl.deregister_detector(TxOrigin)

r2 = sl.run_detectors()

Thus, We are now able to re-run detectors and printers , reusing the same slither object. We don't need to declare new slither object for each combination of detector / printer classes.

Here r1, contains results of TxOrigin , while r2 does not contain results of TxOrigin