1 /* Declarations relating to class gcc_rich_location
2    Copyright (C) 2014-2018 Free Software Foundation, Inc.
3 
4 This file is part of GCC.
5 
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
9 version.
10 
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 for more details.
15 
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3.  If not see
18 <http://www.gnu.org/licenses/>.  */
19 
20 #ifndef GCC_RICH_LOCATION_H
21 #define GCC_RICH_LOCATION_H
22 
23 /* A gcc_rich_location is libcpp's rich_location with additional
24    helper methods for working with gcc's types.  */
25 class gcc_rich_location : public rich_location
26 {
27  public:
28   /* Constructors.  */
29 
30   /* Constructing from a location.  */
31   gcc_rich_location (source_location loc) :
32     rich_location (line_table, loc) {}
33 
34   /* Methods for adding ranges via gcc entities.  */
35   void
36   add_expr (tree expr);
37 
38   void
39   maybe_add_expr (tree t);
40 
41   void add_fixit_misspelled_id (location_t misspelled_token_loc,
42 				tree hint_id);
43 
44   /* If LOC is within the spans of lines that will already be printed for
45      this gcc_rich_location, then add it as a secondary location
46      and return true.
47 
48      Otherwise return false.
49 
50      This allows for a diagnostic to compactly print secondary locations
51      in one diagnostic when these are near enough the primary locations for
52      diagnostics-show-locus.c to cope with them, and to fall back to
53      printing them via a note otherwise e.g.:
54 
55 	gcc_rich_location richloc (primary_loc);
56 	bool added secondary = richloc.add_location_if_nearby (secondary_loc);
57 	error_at_rich_loc (&richloc, "main message");
58 	if (!added secondary)
59 	  inform (secondary_loc, "message for secondary");
60 
61      Implemented in diagnostic-show-locus.c.  */
62 
63   bool add_location_if_nearby (location_t loc);
64 };
65 
66 #endif /* GCC_RICH_LOCATION_H */
67