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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 | ** mtTransferAction.c | |
26 | */ | |
27 | ||
28 | # include "lclintMacros.nf" | |
29 | # include "basic.h" | |
30 | # include "mtgrammar.h" | |
31 | ||
32 | extern mtTransferAction mtTransferAction_createValue (mttok value) | |
33 | { | |
34 | mtTransferAction res = (mtTransferAction) dmalloc (sizeof (*res)); | |
35 | ||
36 | res->kind = MTAK_VALUE; | |
37 | llassert (mttok_isIdentifier (value)); | |
38 | res->value = mttok_getText (value); | |
39 | res->message = cstring_undefined; | |
40 | res->loc = mttok_stealLoc (value); | |
41 | mttok_free (value); | |
42 | return res; | |
43 | } | |
44 | ||
45 | extern mtTransferAction mtTransferAction_createError (mttok tok) | |
46 | { | |
47 | mtTransferAction res = (mtTransferAction) dmalloc (sizeof (*res)); | |
48 | ||
49 | res->kind = MTAK_ERROR; | |
50 | res->value = cstring_undefined; | |
51 | res->message = cstring_undefined; | |
52 | res->loc = mttok_stealLoc (tok); | |
53 | mttok_free (tok); | |
54 | return res; | |
55 | } | |
56 | ||
57 | extern mtTransferAction mtTransferAction_createErrorMessage (mttok message) | |
58 | { | |
59 | mtTransferAction res = (mtTransferAction) dmalloc (sizeof (*res)); | |
60 | ||
61 | res->kind = MTAK_ERROR; | |
62 | res->message = mttok_getText (message); | |
63 | res->value = cstring_undefined; | |
64 | res->loc = mttok_stealLoc (message); | |
65 | mttok_free (message); | |
66 | return res; | |
67 | } | |
68 | ||
69 | extern cstring mtTransferAction_getMessage (mtTransferAction node) | |
70 | { | |
71 | llassert (node->kind == MTAK_ERROR); | |
72 | return node->message; | |
73 | } | |
74 | ||
75 | extern cstring mtTransferAction_unparse (mtTransferAction node) | |
76 | { | |
77 | switch (node->kind) { | |
78 | case MTAK_VALUE: return cstring_copy (node->value); | |
79 | case MTAK_ERROR: | |
80 | if (cstring_isDefined (node->message)) { | |
81 | return message ("error \"%s\"", node->message); | |
82 | } else { | |
83 | return cstring_makeLiteral ("<error>"); | |
84 | } | |
85 | BADDEFAULT; | |
86 | } | |
87 | ||
88 | BADBRANCH; | |
89 | } | |
90 | ||
91 | extern void mtTransferAction_free (/*@only@*/ mtTransferAction node) | |
92 | { | |
93 | cstring_free (node->value); | |
94 | cstring_free (node->message); | |
95 | fileloc_free (node->loc); | |
96 | sfree (node); | |
97 | } |