libiberty/testsuite/test-demangle.c

   1 /* Demangler test program,
   2    Copyright (C) 2002 Free Software Foundation, Inc.
   3    Written by Zack Weinberg <zack@codesourcery.com
   4
   5    This file is part of GNU libiberty.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20 */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include "config.h"
  24 #endif
  25 #include "ansidecl.h"
  26 #include <stdio.h>
  27 #include "libiberty.h"
  28 #include "demangle.h"
  29
  30 struct line
  31 {
  32   size_t alloced;
  33   char *data;
  34 };
  35
  36 static unsigned int lineno;
  37
  38 /* Safely read a single line of arbitrary length from standard input.  */
  39
  40 #define LINELEN 80
  41
  42 static void
  43 getline(buf)
  44      struct line *buf;
  45 {
  46   char *data = buf->data;
  47   size_t alloc = buf->alloced;
  48   size_t count = 0;
  49   int c;
  50
  51   if (data == 0)
  52     {
  53       data = xmalloc (LINELEN);
  54       alloc = LINELEN;
  55     }
  56
  57   /* Skip comment lines.  */
  58   while ((c = getchar()) == '#')
  59     {
  60       while ((c = getchar()) != EOF && c != '\n');
  61       lineno++;
  62     }
  63
  64   /* c is the first character on the line, and it's not a comment
  65      line: copy this line into the buffer and return.  */
  66   while (c != EOF && c != '\n')
  67     {
  68       if (count + 1 >= alloc)
  69         {
  70           alloc *= 2;
  71           data = xrealloc (data, alloc);
  72         }
  73       data[count++] = c;
  74       c = getchar();
  75     }
  76   lineno++;
  77   data[count] = '\0';
  78
  79   buf->data = data;
  80   buf->alloced = alloc;
  81 }
  82
  83 /* The tester operates on a data file consisting of triples of lines:
  84    format switch
  85    input to be demangled
  86    expected output
  87
  88    The format switch is expected to be either the empty string, a
  89    line of the form --format=<name>, or just <name> by itself.  */
  90
  91 #define FORMATS "--format="
  92 #define FORMATL (sizeof FORMATS - 1)
  93
  94 int
  95 main(argc, argv)
  96      int argc;
  97      char **argv;
  98 {
  99   enum demangling_styles style;
 100   struct line format;
 101   struct line input;
 102   struct line expect;
 103   char *fstyle;
 104   char *result;
 105   int failures = 0;
 106   int tests = 0;
 107
 108   if (argc > 1)
 109     {
 110       fprintf (stderr, "usage: %s < test-set\n", argv[0]);
 111       return 2;
 112     }
 113
 114   format.data = 0;
 115   input.data = 0;
 116   expect.data = 0;
 117
 118   for (;;)
 119     {
 120       getline (&format);
 121       if (feof (stdin))
 122         break;
 123
 124       getline (&input);
 125       getline (&expect);
 126
 127       tests++;
 128
 129       fstyle = format.data;
 130       if (!strncmp (fstyle, FORMATS, FORMATL))
 131         fstyle += FORMATL;
 132
 133       if (fstyle[0] == '\0')
 134         style = auto_demangling;
 135       else
 136         style = cplus_demangle_name_to_style (fstyle);
 137
 138       if (style == unknown_demangling)
 139         {
 140           printf ("FAIL at line %d: unknown demangling style %s\n",
 141                   lineno, fstyle);
 142           failures++;
 143           continue;
 144         }
 145
 146       cplus_demangle_set_style (style);
 147
 148       result = cplus_demangle (input.data,
 149                                DMGL_PARAMS|DMGL_ANSI|DMGL_TYPES);
 150
 151       if (result
 152           ? strcmp (result, expect.data)
 153           : strcmp (input.data, expect.data))
 154         {
 155           printf ("\
 156 FAIL at line %d, style %s:\n\
 157 in:  %s\n\
 158 out: %s\n\
 159 exp: %s\n",
 160                    lineno, fstyle,
 161                    input.data,
 162                    result,
 163                    expect.data);
 164           failures++;
 165         }
 166       free (result);
 167     }
 168
 169   free (format.data);
 170   free (input.data);
 171   free (expect.data);
 172
 173   printf ("%s: %d tests, %d failures\n", argv[0], tests, failures);
 174   return failures ? 1 : 0;
 175 }