https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104289
David Malcolm <dmalcolm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |WONTFIX
--- Comment #1 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Thanks for filing this bug.
I think you'll see the fix-its appear/disappear under similar situations if you
look at the output of -fdiagnostics-format=json.
GCC only generates fix-it hints in sufficiently simple situations, but gives up
in some cases involving macros, or where the locations appear unsuitable. The
specifics are in:
https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=libcpp/line-map.cc
where various rich_location::add_fixit_* methods can fail and call
rich_location::stop_supporting_fixits, which has many ways in which the
locations of a fix-it hint can be sufficiently "awkward" for the hints in that
rich_location to be rejected.
I'm going to mark this as WONTFIX as I don't intend to try to handle these
awkward cases (macros, in particular), but if it's failing on something else
you think is reasonable to support, feel free to reopen.
