[Bug c++/121008] [16 Regression] Error on 'this' inside noexcept specifier of lambda capturing 'this' inside noexcept specifier

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121008

--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Jason Merrill <ja...@gcc.gnu.org>:

https://gcc.gnu.org/g:131ba6137bca263d7381ad3331840ee05e306fc9

commit r16-2147-g131ba6137bca263d7381ad3331840ee05e306fc9
Author: Jason Merrill <ja...@redhat.com>
Date:   Wed Jul 9 10:38:20 2025 -0400

    c++: 'this' in lambda in noexcept-spec [PR121008]

    In r16-970 I changed finish_this_expr to look at current_class_type rather
    than current_class_ptr to accommodate explicit object lambdas.  But here in
    a lambda in the noexcept-spec, the closure type doesn't yet have the
    function as its context, so lambda_expr_this_capture can't find the
function
    and gives up.  But in this context current_class_ptr refers to the
    function's 'this', so let's go back to using it in that case.

            PR c++/121008
            PR c++/113563

    gcc/cp/ChangeLog:

            * semantics.cc (finish_this_expr): Do check current_class_ref for
            non-lambda.

    gcc/testsuite/ChangeLog:

            * g++.dg/cpp2a/lambda-uneval28.C: New test.