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6821892e | 1 | /* Interface to functions for deciding which macros are currently in scope. |
7b6bb8da JB |
2 | Copyright (C) 2002, 2007, 2008, 2009, 2010, 2011 |
3 | Free Software Foundation, Inc. | |
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4 | Contributed by Red Hat, Inc. |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
6821892e JB |
11 | (at your option) any later version. |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
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20 | |
21 | #ifndef MACROSCOPE_H | |
22 | #define MACROSCOPE_H | |
23 | ||
24 | #include "macrotab.h" | |
25 | #include "symtab.h" | |
26 | ||
27 | ||
d7d9f01e TT |
28 | /* The table of macros defined by the user. */ |
29 | extern struct macro_table *macro_user_macros; | |
30 | ||
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31 | /* All the information we need to decide which macro definitions are |
32 | in scope: a source file (either a main source file or an | |
33 | #inclusion), and a line number in that file. */ | |
34 | struct macro_scope { | |
35 | struct macro_source_file *file; | |
36 | int line; | |
37 | }; | |
38 | ||
39 | ||
40 | /* Return a `struct macro_scope' object corresponding to the symtab | |
41 | and line given in SAL. If we have no macro information for that | |
42 | location, or if SAL's pc is zero, return zero. */ | |
43 | struct macro_scope *sal_macro_scope (struct symtab_and_line sal); | |
44 | ||
45 | ||
d7d9f01e TT |
46 | /* Return a `struct macro_scope' object representing just the |
47 | user-defined macros. The result is allocated using xmalloc; the | |
48 | caller is responsible for freeing it. */ | |
49 | struct macro_scope *user_macro_scope (void); | |
50 | ||
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51 | /* Return a `struct macro_scope' object describing the scope the `macro |
52 | expand' and `macro expand-once' commands should use for looking up | |
53 | macros. If we have a selected frame, this is the source location of | |
54 | its PC; otherwise, this is the last listing position. | |
55 | ||
d7d9f01e TT |
56 | If we have no macro information for the current location, return |
57 | the user macro scope. | |
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58 | |
59 | The object returned is allocated using xmalloc; the caller is | |
60 | responsible for freeing it. */ | |
61 | struct macro_scope *default_macro_scope (void); | |
62 | ||
63 | ||
64 | /* Look up the definition of the macro named NAME in scope at the source | |
65 | location given by BATON, which must be a pointer to a `struct | |
66 | macro_scope' structure. This function is suitable for use as | |
67 | a macro_lookup_ftype function. */ | |
68 | struct macro_definition *standard_macro_lookup (const char *name, void *baton); | |
69 | ||
70 | ||
71 | #endif /* MACROSCOPE_H */ |