https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125007
--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jakub Jelinek <[email protected]>: https://gcc.gnu.org/g:e8aa21caed8a3c8b4b27d224a04296f008bcf3da commit r17-382-ge8aa21caed8a3c8b4b27d224a04296f008bcf3da Author: Jakub Jelinek <[email protected]> Date: Thu May 7 17:31:09 2026 +0200 c++: Improve REFLECT_EXPR printing [PR125007] The following patch fixes REFLECT_EXPR printing. Currently it prints everything as ^^ followed by dumping the decl/type/expr handle of the REFLECT_EXPR_HANDLE except the weird printing of data member specifications. E.g. annotations are printed as ^^ and dump_expr on the REFLECT_EXPR_HANDLE, which is a TREE_LIST so it prints the TREE_VALUE of TREE_VALUE of that in the end and prints e.g. reflection of [[=1]] as ^^1. The following patch prints reflections of annotations as ^^[[=1]] which is also not valid C++ syntax, but because the IL doesn't store the decl/type etc. in whose DECL_ATTRIBUTES/TYPE_ATTRIBUTES it appears, I'm afraid we can't do much better (like print annotations_of(^^something)[N]). For REFLECT_BASE/REFLECT_PARM/REFLECT_DATA_MEMBER_SPEC/REFLECT_VALUE/REFLECT_OBJECT, it attempts to use the C++ valid syntax, so prints bases_of(^^type,std::meta::access_context::unchecked())[N] {aka base_type} parameters_of(^^decl)[N] {aka param_name} data_member_spec(^^type,{.name="foo"}) std::meta::reflect_constant(X) std::meta::reflect_object(X) etc. 2026-05-07 Jakub Jelinek <[email protected]> PR c++/125007 * cp-tree.h (maybe_update_function_parm): Declare. * reflect.cc (maybe_update_function_parm): No longer static. * error.cc (dump_expr) <case REFLECT_EXPR>: Improve printing of various reflections. * g++.dg/reflect/pr125007.C: New test. Reviewed-by: Jason Merrill <[email protected]>
