Convert tid_range_parser and get_number_or_range to classes

This converts tid_range_parser and get_number_or_range to be classes.
The various tid_range_parser_* and get_number_or_range_* functions
become methods on the respective classes.  Then it updates the users
to follow.

The rationale for the change is that this provides better
encapsulation.  For example, this forced me to think of a better
interface between tid_range_parser and get_number_or_range, since the
former peeked into the latter's internals a bit too much.  That ended
up resulting mostly in these two not-just-straight-1-1 changes:

  void
 -tid_range_parser_skip (struct tid_range_parser *parser)
 +tid_range_parser::skip_range ()
  {
 ...

 -  tid_range_parser_init (parser, parser->range_parser.end_ptr,
 -			 parser->default_inferior);
 +  m_range_parser.skip_range ();
 +  init (m_range_parser.string (), m_default_inferior);
  }

 and:

    /* If we successfully parsed a thread number or finished parsing a
       thread range, switch back to assuming the next TID is
       inferior-qualified.  */
 -  if (parser->range_parser.end_ptr == NULL
 -      || parser->range_parser.string == parser->range_parser.end_ptr)
 +  if (!m_range_parser.in_range ())
      {

For the same reason (encapsulation), this moves the enum
tid_range_state definition to within the tid_parser class's scope,
since that is private implementation detail.

While at it, switch to use "bool" for booleans.

gdb/ChangeLog:
2016-10-13  Pedro Alves  <palves@redhat.com>
	    Tom Tromey  <tom@tromey.com>

	* tid-parse.h (tid_range_parser): New class.
	(enum tid_range_state): Move into tid_range_parser's scope.
	Remove TID_RANGE_ prefix from all values.
	(tid_range_parser_get_tid, tid_range_parser_get_tid_range)
	(tid_range_parser_star_range, tid_range_parser_finished)
	(tid_range_parser_skip, tid_range_parser_qualified): Don't
	declare.
	(tid_is_in_list): Update comment.
	* tid-parse.c (tid_range_parser::tid_range_parser): New.
	(init, finished, get_string, skip, tid_is_qualified)
	(get_tid_or_range, get_tid_range, get_tid, star_range): Rename;
	turn into methods.
	(tid_is_in_list): Adjust.
	* cli/cli-utils.h (number_or_range_parser): New class.
	(init_number_or_range, get_number_or_range)
	(number_range_setup_range): Don't declare.
	* cli/cli-utils.c
	(number_or_range_parser::number_or_range_parser): New.
	(init_number_or_range, get_number_or_range)
	(number_range_setup_range): Rename; turn into methods.
	(number_is_in_list): Adjust.
	* breakpoint.c (map_breakpoint_numbers): Adjust.  Use bool.
	(trace_pass_command, get_tracepoint_by_number): Adjust.
	* breakpoint.h (get_tracepoint_by_number): Adjust.
	* inferior.c (detach_inferior_command, kill_inferior_command)
	(remove_inferior_command): Adjust.
	* linespec.c (decode_line_2): Adjust.
	* memattr.c (mem_enable_command, mem_disable_command)
	(mem_delete_command): Adjust.
	* printcmd.c (map_display_numbers): Adjust.
	* reverse.c (delete_bookmark_command, bookmarks_info): Adjust.
	* thread.c (thread_apply_command): Adjust.

1 files changed, 12 insertions, 20 deletions

diff --git a/gdb/memattr.c b/gdb/memattr.c
index c4a3b75..1c5c48f 100644
--- a/gdb/memattr.c
+++ b/gdb/memattr.c
@@ -578,12 +578,10 @@ mem_enable_command (char *args, int from_tty)
     }
   else
     {
-      struct get_number_or_range_state state;
-
-      init_number_or_range (&state, args);
-      while (!state.finished)
+      number_or_range_parser parser (args);
+      while (!parser.finished ())
 	{
-	  num = get_number_or_range (&state);
+	  num = parser.get_number ();
 	  mem_enable (num);
 	}
     }
@@ -610,27 +608,24 @@ mem_disable (int num)
 static void
 mem_disable_command (char *args, int from_tty)
 {
-  int num;
-  struct mem_region *m;
-  int ix;
-
   require_user_regions (from_tty);
 
   target_dcache_invalidate ();
 
   if (args == NULL || *args == '\0')
     {
+      struct mem_region *m;
+      int ix;
+
       for (ix = 0; VEC_iterate (mem_region_s, mem_region_list, ix, m); ix++)
 	m->enabled_p = 0;
     }
   else
     {
-      struct get_number_or_range_state state;
-
-      init_number_or_range (&state, args);
-      while (!state.finished)
+      number_or_range_parser parser (args);
+      while (!parser.finished ())
 	{
-	  num = get_number_or_range (&state);
+	  int num = parser.get_number ();
 	  mem_disable (num);
 	}
     }
@@ -666,9 +661,6 @@ mem_delete (int num)
 static void
 mem_delete_command (char *args, int from_tty)
 {
-  int num;
-  struct get_number_or_range_state state;
-
   require_user_regions (from_tty);
 
   target_dcache_invalidate ();
@@ -681,10 +673,10 @@ mem_delete_command (char *args, int from_tty)
       return;
     }
 
-  init_number_or_range (&state, args);
-  while (!state.finished)
+  number_or_range_parser parser (args);
+  while (!parser.finished ())
     {
-      num = get_number_or_range (&state);
+      int num = parser.get_number ();
       mem_delete (num);
     }