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6821892e | 1 | /* Interface to functions for deciding which macros are currently in scope. |
6aba47ca | 2 | Copyright (C) 2002, 2007 Free Software Foundation, Inc. |
6821892e JB |
3 | Contributed by Red Hat, Inc. |
4 | ||
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
6821892e JB |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
6821892e JB |
19 | |
20 | #ifndef MACROSCOPE_H | |
21 | #define MACROSCOPE_H | |
22 | ||
23 | #include "macrotab.h" | |
24 | #include "symtab.h" | |
25 | ||
26 | ||
27 | /* All the information we need to decide which macro definitions are | |
28 | in scope: a source file (either a main source file or an | |
29 | #inclusion), and a line number in that file. */ | |
30 | struct macro_scope { | |
31 | struct macro_source_file *file; | |
32 | int line; | |
33 | }; | |
34 | ||
35 | ||
36 | /* Return a `struct macro_scope' object corresponding to the symtab | |
37 | and line given in SAL. If we have no macro information for that | |
38 | location, or if SAL's pc is zero, return zero. */ | |
39 | struct macro_scope *sal_macro_scope (struct symtab_and_line sal); | |
40 | ||
41 | ||
42 | /* Return a `struct macro_scope' object describing the scope the `macro | |
43 | expand' and `macro expand-once' commands should use for looking up | |
44 | macros. If we have a selected frame, this is the source location of | |
45 | its PC; otherwise, this is the last listing position. | |
46 | ||
47 | If we have no macro information for the current location, return zero. | |
48 | ||
49 | The object returned is allocated using xmalloc; the caller is | |
50 | responsible for freeing it. */ | |
51 | struct macro_scope *default_macro_scope (void); | |
52 | ||
53 | ||
54 | /* Look up the definition of the macro named NAME in scope at the source | |
55 | location given by BATON, which must be a pointer to a `struct | |
56 | macro_scope' structure. This function is suitable for use as | |
57 | a macro_lookup_ftype function. */ | |
58 | struct macro_definition *standard_macro_lookup (const char *name, void *baton); | |
59 | ||
60 | ||
61 | #endif /* MACROSCOPE_H */ |