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1 | /* | |
2 | ** Splint - annotation-assisted static program checker | |
3 | ** Copyright (C) 1994-2002 University of Virginia, | |
4 | ** Massachusetts Institute of Technology | |
5 | ** | |
6 | ** This program is free software; you can redistribute it and/or modify it | |
7 | ** under the terms of the GNU General Public License as published by the | |
8 | ** Free Software Foundation; either version 2 of the License, or (at your | |
9 | ** option) any later version. | |
10 | ** | |
11 | ** This program is distributed in the hope that it will be useful, but | |
12 | ** WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | ** General Public License for more details. | |
15 | ** | |
16 | ** The GNU General Public License is available from http://www.gnu.org/ or | |
17 | ** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | ** MA 02111-1307, USA. | |
19 | ** | |
20 | ** For information on splint: info@splint.org | |
21 | ** To report a bug: splint-bug@splint.org | |
22 | ** For more information: http://www.splint.org | |
23 | */ | |
24 | /* | |
25 | ** warnClause.c | |
26 | */ | |
27 | ||
28 | # include "splintMacros.nf" | |
29 | # include "basic.h" | |
30 | ||
31 | static warnClause warnClause_createAux (/*@only@*/ fileloc loc, | |
32 | /*@only@*/ flagSpec flag, | |
33 | /*@only@*/ cstring msg) | |
34 | { | |
35 | warnClause res = (warnClause) dmalloc (sizeof (*res)); | |
36 | ||
37 | res->loc = loc; | |
38 | res->flag = flag; | |
39 | res->msg = msg; | |
40 | ||
41 | DPRINTF (("Creating warn clause with flag spec: [%p] %s", flag, | |
42 | flagSpec_unparse (flag))); | |
43 | return res; | |
44 | } | |
45 | ||
46 | extern warnClause warnClause_create (lltok tok, flagSpec flag, cstring msg) | |
47 | { | |
48 | warnClause res; | |
49 | /* | |
50 | ** evans 2002-03-11 | |
51 | ** was | |
52 | ** res = warnClause_createAux (lltok_stealLoc (tok), flag, msg); | |
53 | ** but this leads to unexplained (yet) crashes. | |
54 | ** Reported by Walter Briscoe | |
55 | */ | |
56 | ||
57 | res = warnClause_createAux (fileloc_copy (lltok_getLoc (tok)), flag, msg); | |
58 | lltok_free (tok); | |
59 | return res; | |
60 | } | |
61 | ||
62 | warnClause warnClause_copy (warnClause w) | |
63 | { | |
64 | if (warnClause_isDefined (w)) | |
65 | { | |
66 | return warnClause_createAux (fileloc_copy (w->loc), | |
67 | flagSpec_copy (w->flag), | |
68 | cstring_copy (w->msg)); | |
69 | } | |
70 | else | |
71 | { | |
72 | return warnClause_undefined; | |
73 | } | |
74 | } | |
75 | ||
76 | extern flagSpec warnClause_getFlag (warnClause w) | |
77 | { | |
78 | llassert (warnClause_isDefined (w)); | |
79 | return w->flag; | |
80 | } | |
81 | ||
82 | extern cstring warnClause_unparse (warnClause w) | |
83 | { | |
84 | if (warnClause_isDefined (w)) | |
85 | { | |
86 | return message ("<%q> %s", flagSpec_unparse (w->flag), w->msg); | |
87 | } | |
88 | else | |
89 | { | |
90 | return cstring_undefined; | |
91 | } | |
92 | } | |
93 | ||
94 | extern bool warnClause_hasMessage (warnClause w) | |
95 | { | |
96 | return warnClause_isDefined (w) && cstring_isDefined (w->msg); | |
97 | } | |
98 | ||
99 | extern /*@observer@*/ cstring warnClause_getMessage (warnClause w) | |
100 | { | |
101 | if (warnClause_isDefined (w)) { | |
102 | return w->msg; | |
103 | } else { | |
104 | return cstring_undefined; | |
105 | } | |
106 | } | |
107 | ||
108 | ||
109 | extern void warnClause_free (warnClause w) | |
110 | { | |
111 | if (warnClause_isDefined (w)) | |
112 | { | |
113 | flagSpec_free (w->flag); | |
114 | fileloc_free (w->loc); | |
115 | cstring_free (w->msg); | |
116 | sfree (w); | |
117 | } | |
118 | } | |
119 | ||
120 | /*@only@*/ cstring | |
121 | warnClause_dump (warnClause wc) | |
122 | { | |
123 | cstring st = cstring_undefined; | |
124 | llassert (warnClause_isDefined (wc)); | |
125 | llassert (!cstring_containsChar (warnClause_getMessage (wc), '#')); | |
126 | ||
127 | if (warnClause_hasMessage (wc)) | |
128 | { | |
129 | llassert (cstring_firstChar (warnClause_getMessage (wc)) != '.'); | |
130 | st = message ("%q#%s#", flagSpec_dump (wc->flag), warnClause_getMessage (wc)); | |
131 | } | |
132 | else | |
133 | { | |
134 | st = message ("%q#.#", flagSpec_dump (wc->flag)); | |
135 | } | |
136 | ||
137 | return st; | |
138 | } | |
139 | ||
140 | warnClause | |
141 | warnClause_undump (char **s) | |
142 | { | |
143 | flagSpec flag; | |
144 | cstring msg; | |
145 | ||
146 | DPRINTF (("Undump: %s", *s)); | |
147 | flag = flagSpec_undump (s); | |
148 | DPRINTF (("Here: %s", *s)); | |
149 | reader_checkChar (s, '#'); | |
150 | DPRINTF (("Here: %s", *s)); | |
151 | ||
152 | if (reader_optCheckChar (s, '.')) | |
153 | { | |
154 | msg = cstring_undefined; | |
155 | } | |
156 | else | |
157 | { | |
158 | msg = reader_readUntil (s, '#'); | |
159 | } | |
160 | ||
161 | DPRINTF (("Here: %s", *s)); | |
162 | reader_checkChar (s, '#'); | |
163 | ||
164 | return warnClause_createAux (fileloc_copy (g_currentloc), flag, msg); | |
165 | } |