[Bug c++/113563] Rejects capture of `this` in C++23 `this auto` lambda

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113563

--- Comment #12 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:2047aa4ce2ed9976fb36e984b43864fcd6f3a65d

commit r16-970-g2047aa4ce2ed9976fb36e984b43864fcd6f3a65d
Author: Jason Merrill <ja...@redhat.com>
Date:   Thu May 29 12:36:23 2025 -0400

    c++: xobj lambda 'this' capture [PR113563]

    Various places were still making assumptions that we could get to the
'this'
    capture through current_class_ref in a lambda op(), which is incorrect for
    an explicit object op().

            PR c++/113563

    gcc/cp/ChangeLog:

            * lambda.cc (build_capture_proxy): Check pointerness of the
            member, not the proxy type.
            (lambda_expr_this_capture): Don't assume current_class_ref.
            (nonlambda_method_basetype): Likewise.
            * semantics.cc (finish_non_static_data_member): Don't assume
            TREE_TYPE (object) is set.
            (finish_this_expr): Check current_class_type for lambda,
            not current_class_ref.

    gcc/testsuite/ChangeLog:

            * g++.dg/cpp23/explicit-obj-lambda16.C: New test.