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616915dd | 1 | /* |
2 | ** LCLint - annotation-assisted static program checker | |
3 | ** Copyright (C) 1994-2000 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 | ** structNames.c | |
26 | ** | |
27 | ** Hacks to fit tags into the same namespace. | |
28 | */ | |
29 | ||
30 | # include "lclintMacros.nf" | |
31 | # include "basic.h" | |
32 | # include "structNames.h" | |
33 | ||
34 | /*@constant char MARKCHAR_STRUCT; @*/ | |
35 | # define MARKCHAR_STRUCT '@' | |
36 | ||
37 | /*@constant char MARKCHAR_UNION; @*/ | |
38 | # define MARKCHAR_UNION '$' | |
39 | ||
40 | /*@constant char MARKCHAR_ENUM; @*/ | |
41 | # define MARKCHAR_ENUM '&' | |
42 | ||
43 | /*@constant char MARKCHAR_PARAM; @*/ | |
44 | # define MARKCHAR_PARAM '%' | |
45 | ||
46 | /*@only@*/ cstring fixTagName (cstring s) | |
47 | { | |
48 | if (isFakeTag (s)) | |
49 | { | |
50 | switch (cstring_firstChar (s)) | |
51 | { | |
52 | case MARKCHAR_STRUCT: return (cstring_makeLiteral ("struct")); | |
53 | case MARKCHAR_UNION: return (cstring_makeLiteral ("union")); | |
54 | case MARKCHAR_ENUM: return (cstring_makeLiteral ("enum")); | |
55 | default: return (message ("<bad tag name: %s>", s)); | |
56 | /* BADDEFAULT; */ | |
57 | } | |
58 | } | |
59 | else | |
60 | { | |
61 | if (cstring_isDefined (s)) { | |
62 | switch (cstring_firstChar (s)) | |
63 | { | |
64 | case MARKCHAR_STRUCT: | |
65 | return (message ("struct %s", cstring_suffix (s, 1))); | |
66 | case MARKCHAR_UNION: | |
67 | return (message ("union %s", cstring_suffix (s, 1))); | |
68 | case MARKCHAR_ENUM: | |
69 | return (message ("enum %s", cstring_suffix (s, 1))); | |
70 | BADDEFAULT; | |
71 | } | |
72 | } else { | |
73 | return (cstring_makeLiteral ("<missing tag name>")); | |
74 | } | |
75 | } | |
76 | } | |
77 | ||
78 | cstring makeParam (cstring s) | |
79 | { | |
80 | if (cstring_length(s) > 0 && cstring_firstChar (s) == MARKCHAR_PARAM) | |
81 | { | |
82 | llbug (message ("makeParam: %s\n", s)); | |
83 | } | |
84 | ||
85 | if (cstring_isUndefined (s)) | |
86 | { | |
87 | return cstring_undefined; | |
88 | } | |
89 | ||
90 | return (cstring_prependChar (MARKCHAR_PARAM, s)); | |
91 | } | |
92 | ||
93 | /*@observer@*/ cstring fixParamName (cstring s) | |
94 | { | |
95 | if (cstring_length(s) < 1) | |
96 | { | |
97 | return cstring_undefined; | |
98 | } | |
99 | ||
100 | if (cstring_firstChar (s) != MARKCHAR_PARAM) | |
101 | { | |
102 | llbug (message ("fixParamName (no #): %s", s)); | |
103 | } | |
104 | ||
105 | return (cstring_suffix (s, 1)); | |
106 | } | |
107 | ||
108 | cstring makeStruct (cstring s) | |
109 | { | |
110 | if (cstring_firstChar (s) == '@') | |
111 | { | |
112 | llbug (message ("makeStruct: %s\n", s)); | |
113 | } | |
114 | ||
115 | return (cstring_prependChar (MARKCHAR_STRUCT, s)); | |
116 | } | |
117 | ||
118 | cstring makeUnion (cstring s) | |
119 | { | |
120 | return (cstring_prependChar (MARKCHAR_UNION, s)); | |
121 | } | |
122 | ||
123 | cstring makeEnum (cstring s) | |
124 | { | |
125 | return (cstring_prependChar (MARKCHAR_ENUM, s)); | |
126 | } | |
127 | ||
128 | static unsigned int tagno = 1; | |
129 | ||
130 | void setTagNo (unsigned int n) | |
131 | { | |
132 | if (n > tagno) | |
133 | tagno = n; | |
134 | } | |
135 | ||
136 | bool isFakeTag (cstring s) | |
137 | { | |
138 | int length = cstring_length (s); | |
139 | ||
140 | return ((length >= 1 && cstring_firstChar (s) == '!') | |
141 | || (length >= 2 && cstring_getChar (s, 2) == '!')); | |
142 | } | |
143 | ||
144 | cstring fakeTag () | |
145 | { | |
146 | tagno++; | |
147 | ||
148 | return (message ("!%u", tagno)); | |
149 | } | |
150 | ||
151 | ||
152 | ||
153 | ||
154 |