From: Ben Boeckel <ben.boeckel@kitware.com>
To: Dan Klishch <daklishch@gmail.com>
Cc: gcc@gcc.gnu.org
Subject: Re: Proposal: allow to extend C++ template argument deduction via plugins
Date: Fri, 15 Jul 2022 10:18:12 -0400 [thread overview]
Message-ID: <YtF3JAkBIOebB/e5@megas.dev.benboeckel.internal> (raw)
In-Reply-To: <CAAvxmfmYgbAgxssWDsmraBA_=rTS_nkG1KJsnQEp=wgVkuydyw@mail.gmail.com>
On Thu, Jul 14, 2022 at 18:46:47 +0200, Dan Klishch via Gcc wrote:
> As far as I understand the currently available plugin extension points, it is
> not possible to modify template argument deduction algorithm (except the
> theoretical possibility to completely override parsing step). However, such
> opportunity might be beneficial for projects like libpqxx, for example, when
> database schema and query text are available at compile-time, return types of
> the query might be inferred by the plugin.
>
> I propose to add something like PLUGIN_FUNCTION_CALL plugin_event which will
> allow to modify function calls conditionally. Will a patch adding such
> functionality be welcomed?
Note that I'm not a GCC developer, so my opinion isn't worth much on the
acceptability-to-GCC front.
Wouldn't this make it a C++ dialect? How would non-GCC compilers be able
to be compatible with such an API? That is, if the schema and query
being available changes the API (nevermind the schema itself changing),
I don't see how this works in general.
--Ben
next prev parent reply other threads:[~2022-07-15 14:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-14 16:46 Dan Klishch
2022-07-15 14:18 ` Ben Boeckel [this message]
2022-07-15 16:25 ` Dan Klishch
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