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From: Tom Tromey <tom@tromey.com>
To: Tom de Vries <tdevries@suse.de>
Cc: Tom Tromey <tom@tromey.com>,  gdb-patches@sourceware.org
Subject: Re: [PATCH v3 1/5] [gdb/python] Introduce py_{none, true, false, notimplemented} functions
Date: Fri, 15 May 2026 12:36:16 -0600	[thread overview]
Message-ID: <87zf20frkv.fsf@tromey.com> (raw)
In-Reply-To: <33140204-448e-4e6c-97e5-833b589f1732@suse.de> (Tom de Vries's message of "Fri, 15 May 2026 19:44:57 +0200")

>>>>> "Tom" == Tom de Vries <tdevries@suse.de> writes:

Tom> On 5/15/26 7:36 PM, Tom Tromey wrote:
Tom> +   So for the limited C API 3.12 and newer, we could just return a
Tom> +   "PyObject *" instead.

Tom> I think the sentence is correct, and I still don't understand why you
Tom> think its incorrect.

It's not incorrect about the implementation of Python, but it posits
that in some situation these functions could return a PyObject*.

However such a change would not be good.  For one thing these things are
useful in places that operate generically on gdbpy_ref<>.  But for
another, gdb should treat CPython as a black box to the degree possible
and not try to avoid inc/dec-refs on immortal objects.  Whether an
object is immortal is for CPython to manage.

Tom

  reply	other threads:[~2026-05-15 18:36 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-15 13:58 Tom de Vries
2026-05-15 13:58 ` [PATCH v3 2/5] [gdb/python] Remove Py_RETURN_{NONE, TRUE, FALSE, NOTIMPLEMENTED} Tom de Vries
2026-05-15 13:58 ` [PATCH v3 3/5] [gdb/python] Undefine " Tom de Vries
2026-05-15 14:05   ` Tom de Vries
2026-05-15 17:40   ` Tom Tromey
2026-05-15 13:58 ` [PATCH v3 4/5] [gdb/python] Use py_{none,false} more often Tom de Vries
2026-05-15 17:39   ` Tom Tromey
2026-05-15 13:58 ` [PATCH v3 5/5] [gdb/python] Use py_{none,notimplemented} " Tom de Vries
2026-05-15 17:38   ` Tom Tromey
2026-05-15 17:36 ` [PATCH v3 1/5] [gdb/python] Introduce py_{none, true, false, notimplemented} functions Tom Tromey
2026-05-15 17:44   ` Tom de Vries
2026-05-15 18:36     ` Tom Tromey [this message]
2026-05-15 19:08       ` Tom de Vries

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