[Bug python/24201] New: Allow Python pretty printers to return other printers as children

[matthew.mcallister.0 at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=24201

            Bug ID: 24201
           Summary: Allow Python pretty printers to return other printers
                    as children
           Product: gdb
           Version: 8.2
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: python
          Assignee: unassigned at sourceware dot org
          Reporter: matthew.mcallister.0 at gmail dot com
  Target Milestone: ---

It would make pretty printing more flexible if the 'children' method of the
pretty printer interface could return any Python object that implements the
printer interface.

An example use case is a struct like 'struct { size_t len; Elem *array; /*other
fields*/ }'. The printer for this struct could return as one of its children a
dummy printer whose own children are the elements of the array; GDB would then
handle the formatting.

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