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28bf4b0b | 1 | /* |
11db3170 | 2 | ** Splint - annotation-assisted static program checker |
c59f5181 | 3 | ** Copyright (C) 1994-2003 University of Virginia, |
28bf4b0b | 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 | ** | |
155af98d | 20 | ** For information on splint: info@splint.org |
21 | ** To report a bug: splint-bug@splint.org | |
11db3170 | 22 | ** For more information: http://www.splint.org |
28bf4b0b | 23 | */ |
24 | /* | |
25 | ** flagSpec.c | |
26 | */ | |
27 | ||
1b8ae690 | 28 | # include "splintMacros.nf" |
28bf4b0b | 29 | # include "basic.h" |
30 | ||
31 | static /*@only@*/ flagSpecItem flagSpecItem_create (/*@only@*/ cstring fname) | |
32 | { | |
80489f0a | 33 | flagSpecItem res = (flagSpecItem) dmalloc (sizeof (*res));\r |
34 | DPRINTF (("Creating item: [%p]", fname));\r | |
35 | DPRINTF (("The name is: %s", fname));\r | |
36 | ||
28bf4b0b | 37 | res->name = fname; |
a956d444 | 38 | res->code = flags_identifyFlag (fname); |
28bf4b0b | 39 | /* Invalid flag okay for now... */ |
40 | return res; | |
41 | } | |
42 | ||
43 | static void flagSpecItem_free (/*@only@*/ flagSpecItem fitem) | |
44 | { | |
45 | cstring_free (fitem->name); | |
46 | sfree (fitem); | |
47 | } | |
48 | ||
49 | static /*@only@*/ flagSpec flagSpec_create (/*@only@*/ flagSpecItem fitem, | |
50 | /*@only@*/ flagSpec frest) | |
51 | { | |
52 | flagSpec res = (flagSpec) dmalloc (sizeof (*res)); | |
53 | res->tspec = fitem; | |
80489f0a | 54 | res->trest = frest;\r |
55 | DPRINTF (("New flag spec: %s", flagSpec_unparse (res))); | |
28bf4b0b | 56 | return res; |
57 | } | |
58 | ||
59 | flagSpec flagSpec_createPlain (cstring fname) | |
60 | { | |
80489f0a | 61 | flagSpecItem fitem = flagSpecItem_create (fname);\r |
62 | flagSpec res = flagSpec_create (fitem, flagSpec_undefined); | |
63 | DPRINTF (("New flag spec: %s", flagSpec_unparse (res)));\r | |
28bf4b0b | 64 | return res; |
65 | } | |
66 | ||
67 | flagSpec flagSpec_createOr (cstring fname, flagSpec f) | |
68 | { | |
69 | return flagSpec_create (flagSpecItem_create (fname), f); | |
70 | } | |
71 | ||
72 | void flagSpec_free (flagSpec f) | |
73 | { | |
74 | if (flagSpec_isDefined (f)) | |
75 | { | |
76 | flagSpecItem_free (f->tspec); | |
77 | if (flagSpec_isDefined (f->trest)) | |
78 | { | |
79 | flagSpec_free (f->trest); | |
80 | } | |
81 | ||
82 | sfree (f); | |
83 | } | |
84 | } | |
85 | ||
efd360a3 | 86 | flagSpec flagSpec_copy (flagSpec f) |
87 | { | |
88 | if (flagSpec_isDefined (f)) | |
89 | { | |
90 | if (flagSpec_isDefined (f->trest)) | |
91 | { | |
92 | return flagSpec_createOr (cstring_copy (f->tspec->name), | |
93 | flagSpec_copy (f->trest)); | |
94 | } | |
95 | else | |
96 | { | |
97 | return flagSpec_createPlain (cstring_copy (f->tspec->name)); | |
98 | } | |
99 | } | |
100 | else | |
101 | { | |
102 | return flagSpec_undefined; | |
103 | } | |
104 | } | |
105 | ||
28bf4b0b | 106 | cstring flagSpec_unparse (flagSpec f) |
107 | { | |
108 | if (flagSpec_isDefined (f)) | |
109 | { | |
110 | if (flagSpec_isDefined (f->trest)) | |
111 | { | |
112 | return message ("%s | %q", f->tspec->name, flagSpec_unparse (f->trest)); | |
113 | } | |
114 | else | |
115 | { | |
116 | return cstring_copy (f->tspec->name); | |
117 | } | |
118 | } | |
119 | else | |
120 | { | |
121 | return cstring_makeLiteral ("<*** flagSpec undefined ***>"); | |
122 | } | |
123 | } | |
124 | ||
125 | cstring flagSpec_dump (flagSpec f) | |
126 | { | |
127 | llassert (flagSpec_isDefined (f)); | |
128 | llassert (!cstring_containsChar (f->tspec->name, '|')); | |
129 | llassert (!cstring_containsChar (f->tspec->name, '#')); | |
130 | ||
131 | if (flagSpec_isDefined (f->trest)) | |
132 | { | |
133 | return message ("%s|%q", f->tspec->name, flagSpec_dump (f->trest)); | |
134 | } | |
135 | else | |
136 | { | |
137 | return cstring_copy (f->tspec->name); | |
138 | } | |
139 | } | |
140 | ||
141 | flagSpec | |
142 | flagSpec_undump (char **s) | |
143 | { | |
144 | cstring flagname; | |
145 | flagname = reader_readUntilOne (s, "#|"); | |
146 | ||
147 | if (reader_optCheckChar (s, '|')) | |
148 | { | |
149 | return flagSpec_createOr (flagname, flagSpec_undump (s)); | |
150 | } | |
151 | else | |
152 | { | |
153 | return flagSpec_createPlain (flagname); | |
154 | } | |
155 | } | |
156 | ||
157 | flagcode | |
158 | flagSpec_getDominant (flagSpec fs) | |
159 | { | |
160 | llassert (flagSpec_isDefined (fs)); | |
161 | ||
162 | /* Invalid flags? */ | |
163 | return fs->tspec->code; | |
164 | } | |
165 | ||
166 | bool | |
167 | flagSpec_isOn (flagSpec fs, fileloc loc) | |
168 | { | |
169 | llassert (flagSpec_isDefined (fs)); | |
170 | ||
171 | if (context_flagOn (fs->tspec->code, loc)) | |
172 | { | |
173 | return TRUE; | |
174 | } | |
175 | else if (flagSpec_isDefined (fs->trest)) | |
176 | { | |
177 | return flagSpec_isOn (fs->trest, loc); | |
178 | } | |
179 | else | |
180 | { | |
181 | return FALSE; | |
182 | } | |
183 | } | |
184 | ||
185 | flagcode | |
186 | flagSpec_getFirstOn (flagSpec fs, fileloc loc) | |
187 | { | |
188 | llassert (flagSpec_isDefined (fs)); | |
189 | ||
190 | if (context_flagOn (fs->tspec->code, loc)) | |
191 | { | |
192 | return fs->tspec->code; | |
193 | } | |
194 | else if (flagSpec_isDefined (fs->trest)) | |
195 | { | |
196 | return flagSpec_getFirstOn (fs->trest, loc); | |
197 | } | |
198 | else | |
199 | { | |
200 | BADBRANCH; | |
201 | } | |
8250fa4a | 202 | |
203 | BADBRANCHRET (INVALID_FLAG); | |
28bf4b0b | 204 | } |