1 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 *
3 * ***** BEGIN LICENSE BLOCK *****
4 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5 *
6 * The contents of this file are subject to the Mozilla Public License Version
7 * 1.1 (the "License"); you may not use this file except in compliance with
8 * the License. You may obtain a copy of the License at
9 * http://www.mozilla.org/MPL/
10 *
11 * Software distributed under the License is distributed on an "AS IS" basis,
12 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13 * for the specific language governing rights and limitations under the
14 * License.
15 *
16 * The Original Code is Mozilla Communicator client code, released
17 * March 31, 1998.
18 *
19 * The Initial Developer of the Original Code is
20 * Netscape Communications Corporation.
21 * Portions created by the Initial Developer are Copyright (C) 1998
22 * the Initial Developer. All Rights Reserved.
23 *
24 * Contributor(s):
25 * IBM Corp.
26 *
27 * Alternatively, the contents of this file may be used under the terms of
28 * either of the GNU General Public License Version 2 or later (the "GPL"),
29 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
30 * in which case the provisions of the GPL or the LGPL are applicable instead
31 * of those above. If you wish to allow use of your version of this file only
32 * under the terms of either the GPL or the LGPL, and not to allow others to
33 * use your version of this file under the terms of the MPL, indicate your
34 * decision by deleting the provisions above and replace them with the notice
35 * and other provisions required by the GPL or the LGPL. If you do not delete
36 * the provisions above, a recipient may use your version of this file under
37 * the terms of any one of the MPL, the GPL or the LGPL.
38 *
39 * ***** END LICENSE BLOCK ***** */
41 /*
42 * PR assertion checker.
43 */
44 #include "jsstddef.h"
45 #include <stdio.h>
46 #include <stdlib.h>
47 #include "jstypes.h"
48 #include "jsutil.h"
50 #ifdef WIN32
51 # include <windows.h>
52 #endif
54 #ifdef XP_MAC
55 # include <Types.h>
56 # include <stdarg.h>
57 # include "jsprf.h"
58 #endif
60 #ifdef XP_MAC
61 /*
62 * PStrFromCStr converts the source C string to a destination
63 * pascal string as it copies. The dest string will
64 * be truncated to fit into an Str255 if necessary.
65 * If the C String pointer is NULL, the pascal string's length is
66 * set to zero.
67 */
68 static void PStrFromCStr(const char *src, Str255 dst)
69 {
70 short length = 0;
72 /* handle case of overlapping strings */
73 if ( (void*)src == (void*)dst )
74 {
75 unsigned char *curdst = &dst[1];
76 unsigned char thisChar;
78 thisChar = *(const unsigned char*)src++;
79 while ( thisChar != '\0' )
80 {
81 unsigned char nextChar;
83 /*
84 * Use nextChar so we don't overwrite what we
85 * are about to read
86 */
87 nextChar = *(const unsigned char*)src++;
88 *curdst++ = thisChar;
89 thisChar = nextChar;
91 if ( ++length >= 255 )
92 break;
93 }
94 }
95 else if ( src != NULL )
96 {
97 unsigned char *curdst = &dst[1];
98 /* count down so test it loop is faster */
99 short overflow = 255;
100 register char temp;
102 /*
103 * Can't do the K&R C thing of while (*s++ = *t++)
104 * because it will copy trailing zero which might
105 * overrun pascal buffer. Instead we use a temp variable.
106 */
107 while ( (temp = *src++) != 0 )
108 {
109 *(char*)curdst++ = temp;
111 if ( --overflow <= 0 )
112 break;
113 }
114 length = 255 - overflow;
115 }
116 dst[0] = length;
117 }
119 static void jsdebugstr(const char *debuggerMsg)
120 {
121 Str255 pStr;
123 PStrFromCStr(debuggerMsg, pStr);
124 DebugStr(pStr);
125 }
127 static void dprintf(const char *format, ...)
128 {
129 va_list ap;
130 char *buffer;
132 va_start(ap, format);
133 buffer = (char *)JS_vsmprintf(format, ap);
134 va_end(ap);
136 jsdebugstr(buffer);
137 JS_smprintf_free(buffer);
138 }
139 #endif /* XP_MAC */
141 JS_PUBLIC_API(void) JS_Assert(const char *s, const char *file, JSIntn ln)
142 {
143 #ifdef XP_MAC
144 dprintf("Assertion failure: %s, at %s:%d\n", s, file, ln);
145 #else
146 fprintf(stderr, "Assertion failure: %s, at %s:%d\n", s, file, ln);
147 #endif
148 #if defined(WIN32)
149 DebugBreak();
150 #endif
151 #if defined(XP_OS2)
152 asm("int $3");
153 #endif
154 #ifndef XP_MAC
155 abort();
156 #endif
157 }