[Xapian-tickets] [Xapian] #186: User subclassable classes should be reference counted

[Xapian]

#186: User subclassable classes should be reference counted
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 Reporter:  richard      |             Owner:  olly
     Type:  defect       |            Status:  assigned
 Priority:  normal       |         Milestone:  1.3.5
Component:  Library API  |           Version:  git master
 Severity:  normal       |        Resolution:
 Keywords:               |        Blocked By:
 Blocking:               |  Operating System:  All
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Comment (by olly):

 `KeyMaker` done in [c90a93c55f5d7f49c8bee47a9b9473a3e46d7c05/git].

 Updated list of classes still to deal with:

   * `ErrorHandler` (? might just get removed/replaced)
   * `ExpandDecider` (? lingering references exist via `ExpandDeciderAnd`)
   * `LatLongMetric` (? is this class just too much generality?)
   * `PostingSource` (? has clone(), but bindings need to handle specially)

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Ticket URL: <https://trac.xapian.org/ticket/186#comment:36>
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