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jsutil.h
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00001 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
00002  *
00003  * ***** BEGIN LICENSE BLOCK *****
00004  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00005  *
00006  * The contents of this file are subject to the Mozilla Public License Version
00007  * 1.1 (the "License"); you may not use this file except in compliance with
00008  * the License. You may obtain a copy of the License at
00009  * http://www.mozilla.org/MPL/
00010  *
00011  * Software distributed under the License is distributed on an "AS IS" basis,
00012  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00013  * for the specific language governing rights and limitations under the
00014  * License.
00015  *
00016  * The Original Code is Mozilla Communicator client code, released
00017  * March 31, 1998.
00018  *
00019  * The Initial Developer of the Original Code is
00020  * Netscape Communications Corporation.
00021  * Portions created by the Initial Developer are Copyright (C) 1998
00022  * the Initial Developer. All Rights Reserved.
00023  *
00024  * Contributor(s):
00025  *
00026  * Alternatively, the contents of this file may be used under the terms of
00027  * either of the GNU General Public License Version 2 or later (the "GPL"),
00028  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00029  * in which case the provisions of the GPL or the LGPL are applicable instead
00030  * of those above. If you wish to allow use of your version of this file only
00031  * under the terms of either the GPL or the LGPL, and not to allow others to
00032  * use your version of this file under the terms of the MPL, indicate your
00033  * decision by deleting the provisions above and replace them with the notice
00034  * and other provisions required by the GPL or the LGPL. If you do not delete
00035  * the provisions above, a recipient may use your version of this file under
00036  * the terms of any one of the MPL, the GPL or the LGPL.
00037  *
00038  * ***** END LICENSE BLOCK ***** */
00039 
00040 /*
00041  * PR assertion checker.
00042  */
00043 
00044 #ifndef jsutil_h___
00045 #define jsutil_h___
00046 
00047 JS_BEGIN_EXTERN_C
00048 
00049 #ifdef DEBUG
00050 
00051 extern JS_PUBLIC_API(void)
00052 JS_Assert(const char *s, const char *file, JSIntn ln);
00053 #define JS_ASSERT(_expr) \
00054     ((_expr)?((void)0):JS_Assert(# _expr,__FILE__,__LINE__))
00055 
00056 #define JS_NOT_REACHED(_reasonStr) \
00057     JS_Assert(_reasonStr,__FILE__,__LINE__)
00058 
00059 #else
00060 
00061 #define JS_ASSERT(expr) ((void) 0)
00062 #define JS_NOT_REACHED(reasonStr)
00063 
00064 #endif /* defined(DEBUG) */
00065 
00066 /*
00067  * Compile-time assert. "condition" must be a constant expression.
00068  * The macro should be used only once per source line in places where
00069  * a "typedef" declaration is allowed.
00070  */
00071 #define JS_STATIC_ASSERT(condition)                                           \
00072     JS_STATIC_ASSERT_IMPL(condition, __LINE__)
00073 #define JS_STATIC_ASSERT_IMPL(condition, line)                                \
00074     JS_STATIC_ASSERT_IMPL2(condition, line)
00075 #define JS_STATIC_ASSERT_IMPL2(condition, line)                               \
00076     typedef int js_static_assert_line_##line[(condition) ? 1 : -1]
00077 
00078 /*
00079 ** Abort the process in a non-graceful manner. This will cause a core file,
00080 ** call to the debugger or other moral equivalent as well as causing the
00081 ** entire process to stop.
00082 */
00083 extern JS_PUBLIC_API(void) JS_Abort(void);
00084 
00085 #ifdef XP_UNIX
00086 
00087 typedef struct JSCallsite JSCallsite;
00088 
00089 struct JSCallsite {
00090     uint32      pc;
00091     char        *name;
00092     const char  *library;
00093     int         offset;
00094     JSCallsite  *parent;
00095     JSCallsite  *siblings;
00096     JSCallsite  *kids;
00097     void        *handy;
00098 };
00099 
00100 extern JSCallsite *JS_Backtrace(int skip);
00101 
00102 #endif
00103 
00104 JS_END_EXTERN_C
00105 
00106 #endif /* jsutil_h___ */