DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Implementation

Mercurial (920bcf17a9e1)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Communicator client code, released
 * March 31, 1998.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

/*
 * PR assertion checker.
 */

#ifndef jsutil_h___
#define jsutil_h___

JS_BEGIN_EXTERN_C

/*
 * JS_Assert is present even in release builds, for the benefit of applications
 * that build DEBUG and link against a non-DEBUG SpiderMonkey library.
 */
extern JS_PUBLIC_API(void)
JS_Assert(const char *s, const char *file, JSIntn ln);

#ifdef DEBUG

#define JS_ASSERT(expr)                                                       \
    ((expr) ? (void)0 : JS_Assert(#expr, __FILE__, __LINE__))

#define JS_ASSERT_IF(cond, expr)                                              \
    ((!(cond) || (expr)) ? (void)0 : JS_Assert(#expr, __FILE__, __LINE__))

#define JS_NOT_REACHED(reason)                                                \
    JS_Assert(reason, __FILE__, __LINE__)

#else

#define JS_ASSERT(expr)         ((void) 0)
#define JS_ASSERT_IF(cond,expr) ((void) 0)
#define JS_NOT_REACHED(reason)

#endif /* defined(DEBUG) */

/*
 * Compile-time assert. "condition" must be a constant expression.
 * The macro can be used only in places where an "extern" declaration is
 * allowed.
 */

/*
 * Sun Studio C++ compiler has a bug
 * "sizeof expression not accepted as size of array parameter"
 * The bug number is 6688515. It is not public yet.
 * Turn off this assert for Sun Studio until this bug is fixed.
 */
#ifdef __SUNPRO_CC
#define JS_STATIC_ASSERT(condition)
#else
#define JS_STATIC_ASSERT(condition)                                           \
    extern void js_static_assert(int arg[(condition) ? 1 : -1])
#endif

#define JS_STATIC_ASSERT_IF(cond, expr) JS_STATIC_ASSERT(!(cond) || (expr))

/*
 * Abort the process in a non-graceful manner. This will cause a core file,
 * call to the debugger or other moral equivalent as well as causing the
 * entire process to stop.
 */
extern JS_PUBLIC_API(void) JS_Abort(void);

#if 0
# define JS_BASIC_STATS 1
# define JS_SCOPE_DEPTH_METER 1
#endif

#if defined DEBUG && !defined JS_BASIC_STATS
# define JS_BASIC_STATS 1
#endif

#ifdef JS_BASIC_STATS

#include <stdio.h>

typedef struct JSBasicStats {
    uint32      num;
    uint32      max;
    double      sum;
    double      sqsum;
    uint32      logscale;           /* logarithmic scale: 0 (linear), 2, 10 */
    uint32      hist[11];
} JSBasicStats;

#define JS_INIT_STATIC_BASIC_STATS  {0,0,0,0,0,{0,0,0,0,0,0,0,0,0,0,0}}
#define JS_BASIC_STATS_INIT(bs)     memset((bs), 0, sizeof(JSBasicStats))

#define JS_BASIC_STATS_ACCUM(bs,val)                                          \
    JS_BasicStatsAccum(bs, val)

#define JS_MeanAndStdDevBS(bs,sigma)                                          \
    JS_MeanAndStdDev((bs)->num, (bs)->sum, (bs)->sqsum, sigma)

extern void
JS_BasicStatsAccum(JSBasicStats *bs, uint32 val);

extern double
JS_MeanAndStdDev(uint32 num, double sum, double sqsum, double *sigma);

extern void
JS_DumpBasicStats(JSBasicStats *bs, const char *title, FILE *fp);

extern void
JS_DumpHistogram(JSBasicStats *bs, FILE *fp);

#else

#define JS_BASIC_STATS_ACCUM(bs,val) /* nothing */

#endif /* JS_BASIC_STATS */


#if defined(DEBUG_notme) && defined(XP_UNIX)

typedef struct JSCallsite JSCallsite;

struct JSCallsite {
    uint32      pc;
    char        *name;
    const char  *library;
    int         offset;
    JSCallsite  *parent;
    JSCallsite  *siblings;
    JSCallsite  *kids;
    void        *handy;
};

extern JS_FRIEND_API(JSCallsite *)
JS_Backtrace(int skip);

extern JS_FRIEND_API(void)
JS_DumpBacktrace(JSCallsite *trace);

#endif

JS_END_EXTERN_C

#endif /* jsutil_h___ */