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From: "tromey at sourceware dot org" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug mi/14607] -var-list-children reports wrong numchild count
Date: Wed, 25 May 2022 19:00:41 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D14607

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
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                 CC|                            |tromey at sourceware dot o=
rg

--- Comment #2 from Tom Tromey <tromey at sourceware dot org> ---
'numchild' isn't reliable for a dynamic varobj.
This is documented in the MI docs:

'numchild'
     The number of children of the varobj.  This number is not
     necessarily reliable for a dynamic varobj.  Instead, you must
     examine the 'has_more' attribute.

This is a little confusing because in this command:

-var-list-children --all-values struct1.public
^done,numchild=3D"1",children=3D[child=3D{name=3D"struct1.public.a",exp=3D"=
a",numchild=3D"0",value=3D"{...}",type=3D"std::vector<int,
std::allocator<int> >",displayhint=3D"array",dynamic=3D"1"}],has_more=3D"0"

... the has_more here refers to 'struct1.public' (which really only
does have one child), and 'a' doesn't have a has_more here.
Instead one must list the children of 'a' to find out.

So, I'm somewhat inclined to mark this as not a bug.

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