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28bf4b0b | 1 | /* |
2 | ** LCLint - annotation-assisted static program checker | |
3 | ** Copyright (C) 1994-2001 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 lclint: lclint-request@cs.virginia.edu | |
21 | ** To report a bug: lclint-bug@cs.virginia.edu | |
22 | ** For more information: http://lclint.cs.virginia.edu | |
23 | */ | |
24 | /* | |
25 | ** functionClause.c | |
26 | */ | |
27 | ||
28 | # include "lclintMacros.nf" | |
29 | # include "basic.h" | |
30 | ||
31 | static /*@only@*/ /*@notnull@*/ /*@special@*/ functionClause /*@i32 need special? @*/ | |
32 | functionClause_alloc (functionClauseKind kind) /*@defines result->kind@*/ | |
33 | { | |
34 | functionClause res = (functionClause) dmalloc (sizeof (*res)); | |
35 | ||
36 | res->kind = kind; | |
37 | return res; | |
38 | } | |
39 | ||
40 | extern functionClause functionClause_createGlobals (globalsClause node) /*@*/ | |
41 | { | |
42 | functionClause res = functionClause_alloc (FCK_GLOBALS); | |
43 | res->val.globals = node; | |
44 | return res; | |
45 | } | |
46 | ||
47 | extern functionClause functionClause_createModifies (modifiesClause node) /*@*/ | |
48 | { | |
49 | functionClause res = functionClause_alloc (FCK_MODIFIES); | |
50 | res->val.modifies = node; | |
51 | return res; | |
52 | } | |
53 | ||
54 | extern functionClause functionClause_createState (stateClause node) /*@*/ | |
55 | { | |
56 | functionClause res = functionClause_alloc (FCK_STATE); | |
57 | res->val.state = node; | |
58 | return res; | |
59 | } | |
60 | ||
61 | extern functionClause functionClause_createWarn (warnClause node) /*@*/ | |
62 | { | |
63 | functionClause res = functionClause_alloc (FCK_WARN); | |
64 | res->val.warn = node; | |
65 | return res; | |
66 | } | |
67 | ||
68 | /*@only@*/ cstring functionClause_unparse (functionClause p) | |
69 | { | |
70 | if (functionClause_isUndefined (p)) | |
71 | { | |
72 | return cstring_undefined; | |
73 | } | |
74 | ||
75 | switch (p->kind) | |
76 | { | |
77 | case FCK_GLOBALS: | |
78 | return globalsClause_unparse (p->val.globals); | |
79 | case FCK_MODIFIES: | |
80 | return modifiesClause_unparse (p->val.modifies); | |
81 | case FCK_WARN: | |
82 | return warnClause_unparse (p->val.warn); | |
83 | case FCK_STATE: | |
84 | return stateClause_unparse (p->val.state); | |
85 | case FCK_DEAD: | |
86 | BADBRANCH; | |
87 | } | |
88 | ||
89 | BADBRANCH; | |
90 | } | |
91 | ||
92 | extern bool functionClause_matchKind (functionClause p, functionClauseKind kind) /*@*/ | |
93 | { | |
94 | if (functionClause_isDefined (p)) | |
95 | { | |
96 | return (p->kind == kind); | |
97 | } | |
98 | else | |
99 | { | |
100 | return FALSE; | |
101 | } | |
102 | } | |
103 | ||
104 | extern stateClause functionClause_getState (functionClause node) | |
105 | { | |
106 | llassert (functionClause_isDefined (node)); | |
107 | llassert (node->kind == FCK_STATE); | |
108 | ||
109 | return node->val.state; | |
110 | } | |
111 | ||
112 | extern stateClause functionClause_takeState (functionClause fc) | |
113 | { | |
114 | stateClause res; | |
115 | llassert (functionClause_isDefined (fc)); | |
116 | llassert (fc->kind == FCK_STATE); | |
117 | ||
118 | res = fc->val.state; | |
119 | fc->val.state = NULL; | |
120 | fc->kind = FCK_DEAD; | |
121 | return res; | |
122 | } | |
123 | ||
124 | extern warnClause functionClause_getWarn (functionClause node) | |
125 | { | |
126 | llassert (functionClause_isDefined (node)); | |
127 | llassert (node->kind == FCK_WARN); | |
128 | ||
129 | return node->val.warn; | |
130 | } | |
131 | ||
132 | extern warnClause functionClause_takeWarn (functionClause fc) | |
133 | { | |
134 | warnClause res; | |
135 | llassert (functionClause_isDefined (fc)); | |
136 | llassert (fc->kind == FCK_WARN); | |
137 | ||
138 | res = fc->val.warn; | |
139 | fc->val.warn = warnClause_undefined; | |
140 | fc->kind = FCK_DEAD; | |
141 | return res; | |
142 | } | |
143 | ||
144 | extern modifiesClause functionClause_getModifies (functionClause node) | |
145 | { | |
146 | llassert (functionClause_isDefined (node)); | |
147 | llassert (node->kind == FCK_MODIFIES); | |
148 | ||
149 | return node->val.modifies; | |
150 | } | |
151 | ||
152 | extern globalsClause functionClause_getGlobals (functionClause node) | |
153 | { | |
154 | llassert (functionClause_isDefined (node)); | |
155 | llassert (node->kind == FCK_GLOBALS); | |
156 | ||
157 | return node->val.globals; | |
158 | } | |
159 | ||
160 | extern void functionClause_free (/*@only@*/ functionClause node) | |
161 | { | |
162 | if (node != NULL) | |
163 | { | |
164 | switch (node->kind) | |
165 | { | |
166 | case FCK_GLOBALS: | |
167 | globalsClause_free (node->val.globals); | |
168 | break; | |
169 | case FCK_MODIFIES: | |
170 | modifiesClause_free (node->val.modifies); | |
171 | break; | |
172 | case FCK_WARN: | |
173 | warnClause_free (node->val.warn); | |
174 | break; | |
175 | case FCK_STATE: | |
176 | stateClause_free (node->val.state); | |
177 | break; | |
178 | case FCK_DEAD: | |
179 | /* Nothing to release */ | |
180 | break; | |
181 | } | |
182 | ||
183 | sfree (node); | |
184 | } | |
185 | } |