[Bug c++/123661] [reflection] Cannot return a pointer member from a splice expression

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123661

--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Jason Merrill <jason@gcc.gnu.org>:

https://gcc.gnu.org/g:a1e81f838a38e37d7a659406f8fea1dba8f26406

commit r16-7445-ga1e81f838a38e37d7a659406f8fea1dba8f26406
Author: Boris Staletic <boris.staletic@protonmail.com>
Date:   Wed Feb 11 16:20:49 2026 +0900

    c++/reflection: Allow address-splicing of non-static members [PR123660,
PR123661]

    In case of expressions like `&[:expr:]` where `expr` depends on a
    template parameter, and the splice expression represents a `FIELD_DECL` or
    a non-static member `FUNCTION_DECL`, that's exactly what we'd pass on.
    However, `build_x_unary_op()` for these expressions is expecting an
    `OFFSET_REF`. `OFFSET_REF` is also what gets passed to
    `build_x_unary_op()` when templates are not involved.

    There's also a difference between the template argument being a type and
    using `members_of()` to get to the reflections of members (in which case
    evaluating the `SPLICE_EXPR` returns a `FUNCTION_DECL` - `splice10.C`
    test) and passing `^^T::member` as the template argument (in which case
    evaluating the `SPLICE_EXPR` returns a `BASELINK` - `splice11.C`).

    Signed-off-by: Boris Staletic <boris.staletic@protonmail.com>

            PR c++/123660
            PR c++/123661

    gcc/cp/ChangeLog:

            * pt.cc (tsubst_splice_expr): Handle pointers to non-static members
            from splice expressions

    gcc/testsuite/ChangeLog:

            * g++.dg/reflect/splice10.C: New test.
            * g++.dg/reflect/splice11.C: New test.