[tor-bugs] #29209 [Core Tor/Tor]: Reduce visibility of more data type internals

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#29209: Reduce visibility of more data type internals
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 Reporter:  nickm                       |          Owner:  (none)
     Type:  task                        |         Status:  new
 Priority:  Medium                      |      Milestone:  Tor:
                                        |  0.4.1.x-final
Component:  Core Tor/Tor                |        Version:
 Severity:  Normal                      |     Resolution:
 Keywords:  technical-debt refactoring  |  Actual Points:  3.5
Parent ID:                              |         Points:  15
 Reviewer:  nickm                       |        Sponsor:  Sponsor31-can
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Comment (by nickm):

 My understanding is that the leading underscore is also reserved for
 external identifiers; even if it's safe for struct members, it's something
 we don't want to encourage.

 Maybe a trailing underscore?  In any case, _foobar_private_field is also
 easy to grep for...

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29209#comment:19>
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