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Re: [RFA] mi/10586


On 12/02/2011 02:28 PM, Keith Seitz wrote:
On 11/15/2011 09:10 AM, Keith Seitz wrote:
On 11/14/2011 12:28 PM, Tom Tromey wrote:

Actually, thinking about it more, it seems to me that it would be ok for
these cases to just be errors. There's no really good way to refer to
the anonymous field as its own entity, and I don't think we should hack
up the parser and whatever else to support this.

An error... I'm not so sure that I like that, but to be honest, I'm not sure I like/dislike it sufficiently to argue about it.

Ok, so in the end, I've decided against making this an error. Instead, what I've implemented is analogous to how varobj/MI currently deal with the CPLUS_FAKE_CHILD cases: path expressions and the like are "".

If you would like me to do otherwise, please let me know.

I am attaching the latest incarnation of this patch, which covers all
these cases (AFAIK) and utilizes the new varobj tree testing that I
committed last week.

What do you think?


2011-12-02 Keith Seitz <>

PR mi/10586
Based on work by Nick Roberts <>:
* varobj.c [ANONYMOUS_STRUCT_NAME]: New constant.
(is_anonymous_child): New function.
(create_child_with_value): If the child is nameless,
synthesize a name for it.
(c_describe_child): If the child has no field or type names
for a union or sturct, use ANONYMOUS_STRUCT_NAME or
Set path expression for these fields to the empty string.
(cplus_describe_child): Likewise.
(is_path_expr_parent): New function.
(get_path_expr_parent): New function.

2011-12-02 Keith Seitz <>

PR mi/10586
* gdb.mi/ (anonymous_structs): New function.
(class A): New class.
(class B): New class.
(main): Call anonymous_structs.
* gdb.mi/mi-var-cp.exp: Add anonymous struct tests and
adjust test results.
* gdb.mi/mi2-var-cp.exp: Likewise.
* gdb.mi/var-cmd.c (struct _simple_struct): Add two anonymous
* gdb.mi/mi-var-dislay.exp: Add anonymous struct tests and
adjust test results.
* gdb.mi/mi2-var-display.exp: Likewise.

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