Tom Tromey d4b0bb186e Remove some ui_out-related cleanups from Python ... This patch introduces a bit of infrastructure -- namely, a minimal std::optional analogue called gdb::optional, and an RAII template class that works like make_cleanup_ui_out_tuple_begin_end or make_cleanup_ui_out_list_begin_end -- and then uses these in the Python code. This removes a number of cleanups and generally simplifies this code. std::optional is only available in C++17. Normally I would have had this code check __cplusplus, but my gcc apparently isn't new enough to find <optional>, even with -std=c++1z; so, because I could not test it, the patch does not do this. gdb/ChangeLog 2017-02-10 Tom Tromey <tom@tromey.com> * ui-out.h (ui_out_emit_type): New class. (ui_out_emit_tuple, ui_out_emit_list): New typedefs. * python/py-framefilter.c (py_print_single_arg): Use gdb::optional and ui_out_emit_tuple. (enumerate_locals): Likewise. (py_mi_print_variables, py_print_locals, py_print_args): Use ui_out_emit_list. (py_print_frame): Use gdb::optional, ui_out_emit_tuple, ui_out_emit_list. * common/gdb_optional.h: New file.		2017-02-10 12:24:31 -07:00
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lib/gdb
py-arch.c
py-auto-load.c
py-block.c
py-bpevent.c
py-breakpoint.c
py-cmd.c
py-continueevent.c
py-event.c
py-event.h
py-events.h
py-evtregistry.c
py-evts.c
py-exitedevent.c
py-finishbreakpoint.c
py-frame.c
py-framefilter.c
py-function.c
py-gdb-readline.c
py-inferior.c
py-infevents.c
py-infthread.c
py-lazy-string.c
py-linetable.c
py-newobjfileevent.c
py-objfile.c
py-param.c
py-prettyprint.c
py-progspace.c
py-ref.h	Add gdb_ref_ptr.h	2017-01-10 19:14:09 -07:00
py-signalevent.c
py-stopevent.c
py-stopevent.h
py-symbol.c
py-symtab.c
py-threadevent.c
py-type.c
py-unwind.c
py-utils.c	Remove make_cleanup_py_decref and make_cleanup_py_xdecref	2017-01-10 19:14:08 -07:00
py-value.c
py-varobj.c
py-xmethods.c
python-config.py
python-internal.h
python.c
python.h