Re: RFC on bug #3672: pretty printing compound types

[fche at redhat dot com (Frank Ch. Eigler)]

Josh Stone <jistone@redhat.com> writes:

> [...]
> struct fs_struct:
> "{.users=%i, .lock={.raw_lock={.lock=%u}}, .umask=%i, .in_exec=%i,
> .root={.mnt=%p, .dentry=%p}, .pwd={.mnt=%p, .dentry=%p}}"

I like the automatic selection of %i/%u/%p.  We should do the same
thing for $$parms and siblings.


> [...]  The other idea that I'm favoring is to stop following
> pointers, and just make "$" print the structure without any
> substructures and "$$" print with all substructures.  [...]

In that case, we'd have no primitive for following generic pointers,
right?  So one would have to hand-write scripts like these in order to
draw to pointed-to structures.

# probe process("stap").function("*::visit_target_symbol")
#   printf("%s  %s\n", $e$, probefunc())
or 
#   printf("%s  %s\n", $e->tok$, probefunc())

That seems unfortunate.  Maybe use your arrow notation to indicate
pointer-dereferenced pretty-printing?

    $e->->$   for two levels of pointer dereferncing?


- FChE