disabling signature cops on typed: false files about rubocop-sorbet

[Morriar]

However, it doesn't make sense to add them on typed: false files as they won't be validated anyway.

This is actually incorrect, consider the following files:

# file false.rb
# typed: false

extend T::Sig

sig { params(x: Integer).void }
def foo(x); end

# file true.rb
# typed: true

foo("1")

If you run Sorbet on those files, you'll notice that the calls from true.rb are actually checked against the signatures from false.rb:

true.rb:3: Expected `Integer` but found `String("1")` for argument `x` https://srb.help/7002
     3 |foo("1")
            ^^^
  Expected `Integer` for argument `x` of method `Object#foo`:
    false.rb:5:
     5 |sig { params(x: Integer).void }
                     ^
  Got `String("1")` originating from:
    true.rb:3:
     3 |foo("1")
            ^^^
Errors: 1

Can an option be added to not do so? e.g.

Sorbet/EnforceSignatures:
  Enabled: true
  EnforcedStyle: ignore_typed_false

This is a good idea! Do you want to take a shot at it? You can take a look at how we read the configuration of the cop in https://github.com/Shopify/rubocop-sorbet/blob/main/lib/rubocop/cop/sorbet/rbi/forbid_rbi_outside_of_allowed_paths.rb#L58 for example.

[Morriar]

Closing this. Please feel free to open a separate issue (or even better a pull-request) to add an option to the cop.