Introduce and use ui_out_emit_table

This introduces ui_out_emit_table, similar to the other existing
ui_out RAII classes, and then uses it in a number of places.  This
replaces some cleanups.

ChangeLog
2017-08-03  Tom Tromey  <tom@tromey.com>

	* tracepoint.c (tvariables_info_1): Use ui_out_emit_table.
	(info_static_tracepoint_markers_command): Likewise.
	* solib.c (info_sharedlibrary_command): Use ui_out_emit_table.
	* skip.c (skip_info): Use ui_out_emit_table.
	* progspace.c (print_program_space): Use ui_out_emit_table.
	* osdata.c (info_osdata): Use ui_out_emit_table.
	* mi/mi-cmd-info.c (mi_cmd_info_ada_exceptions): Use
	ui_out_emit_table.
	* linux-thread-db.c (info_auto_load_libthread_db): Use
	ui_out_emit_table.
	* inferior.c (print_inferior): Use ui_out_emit_table.
	* gdb_bfd.c (maintenance_info_bfds): Use ui_out_emit_table.
	* breakpoint.c (breakpoint_1): Use ui_out_emit_table.
	* auto-load.c (auto_load_info_scripts): Use ui_out_emit_table.
	* ada-tasks.c (print_ada_task_info): Use ui_out_emit_table.
	* ui-out.h (class ui_out_emit_table): New.

1 files changed, 26 insertions, 0 deletions

diff --git a/gdb/ui-out.h b/gdb/ui-out.h
index 9278cabdaab..857e2522952 100644
--- a/gdb/ui-out.h
+++ b/gdb/ui-out.h
@@ -220,4 +220,30 @@ private:
 typedef ui_out_emit_type<ui_out_type_tuple> ui_out_emit_tuple;
 typedef ui_out_emit_type<ui_out_type_list> ui_out_emit_list;
 
+/* This is similar to make_cleanup_ui_out_table_begin_end, but written
+   as an RAII class.  */
+class ui_out_emit_table
+{
+public:
+
+  ui_out_emit_table (struct ui_out *uiout, int nr_cols, int nr_rows,
+		     const char *tblid)
+    : m_uiout (uiout)
+  {
+    m_uiout->table_begin (nr_cols, nr_rows, tblid);
+  }
+
+  ~ui_out_emit_table ()
+  {
+    m_uiout->table_end ();
+  }
+
+  ui_out_emit_table (const ui_out_emit_table &) = delete;
+  ui_out_emit_table &operator= (const ui_out_emit_table &) = delete;
+
+private:
+
+  struct ui_out *m_uiout;
+};
+
 #endif /* UI_OUT_H */