nsz Git - cparser/blob - warning.c

   1 /*
   2  * This file is part of cparser.
   3  * Copyright (C) 2007-2008 Matthias Braun <matze@braunis.de>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  18  * 02111-1307, USA.
  19  */
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include "warning.h"
  23
  24 warning_t warning = {
  25         .attribute                     = true,
  26         .char_subscripts               = true,
  27         .deprecated_declarations       = true,
  28         .empty_statement               = false,
  29         .fatal_errors                  = false,
  30         .float_equal                   = false,
  31         .format                        = true,
  32         .implicit_function_declaration = true,
  33         .implicit_int                  = true,
  34         .main                          = true,
  35         .missing_declarations          = false,
  36         .missing_prototypes            = false,
  37         .multichar                     = true,
  38         .nonnull                       = true,
  39         .redundant_decls               = true,
  40         .return_type                   = true,
  41         .s_are_errors                  = false,
  42         .shadow                        = false,
  43         .sign_compare                  = false,
  44         .strict_prototypes             = true,
  45         .switch_default                = false,
  46         .unknown_pragmas               = true,
  47         .unreachable_code              = false,
  48         .unused_function               = false,
  49         .unused_label                  = false,
  50         .unused_parameter              = false,
  51         .unused_value                  = true,
  52         .unused_variable               = false
  53 };
  54
  55 void set_warning_opt(const char *const opt)
  56 {
  57         const char* s = opt;
  58
  59         bool state = true;
  60
  61         /* "no-" prefix */
  62         if (s[0] == 'n' && s[1] == 'o' && s[2] == '-') {
  63                 s += 3;
  64                 state = false;
  65         }
  66
  67         if (0) {}
  68 #define OPTX(x)   else if (strcmp(s, x) == 0)
  69 #define SET(y)    (void)(warning.y = state)
  70 #define OPT(x, y) OPTX(x) SET(y)
  71         OPTX("all") {
  72                 /* Note: this switched on a lot of more warnings than gcc's -Wall */
  73                 SET(attribute);
  74                 SET(char_subscripts);
  75                 SET(empty_statement);
  76                 SET(format);
  77                 SET(implicit_function_declaration);
  78                 SET(implicit_int);
  79                 SET(main);
  80                 SET(nonnull);
  81                 SET(redundant_decls);
  82                 SET(return_type);
  83                 SET(shadow);
  84                 SET(sign_compare);
  85                 SET(strict_prototypes);
  86                 SET(unknown_pragmas);
  87                 SET(unreachable_code);
  88                 SET(unused_function);
  89                 SET(unused_label);
  90                 SET(unused_parameter);
  91                 SET(unused_value);
  92                 SET(unused_variable);
  93         }
  94         OPT("attribute",                     attribute);
  95         OPT("char-subscripts",               char_subscripts);
  96         OPT("deprecated-declarations",       deprecated_declarations);
  97         OPT("empty-statement",               empty_statement);
  98         OPT("error",                         s_are_errors);
  99         OPTX("extra") {
 100                 /* TODO */
 101                 // TODO SET(function_end_without_return);
 102                 SET(empty_statement);
 103                 // TODO SET(incomplete_aggregate_init);
 104                 // TODO SET(pointless_comparison);
 105                 SET(unused_parameter);
 106                 SET(unused_value);
 107         }
 108         OPT("fatal-errors",                  fatal_errors);
 109         OPT("float-equal",                   float_equal);
 110         OPTX("format") {
 111                 SET(format);
 112                 SET(nonnull);
 113         }
 114         OPTX("implicit") {
 115                 SET(implicit_function_declaration);
 116                 SET(implicit_int);
 117         }
 118         OPT("implicit-function-declaration", implicit_function_declaration);
 119         OPT("implicit-int",                  implicit_int);
 120         OPT("main",                          main);
 121         OPT("missing-declarations",          missing_declarations);
 122         OPT("missing-prototypes",            missing_prototypes);
 123         OPT("multichar",                     multichar);
 124         OPT("nonnull",                       nonnull);
 125         OPT("redundant-decls",               redundant_decls);
 126         OPT("return-type",                   return_type);
 127         OPT("shadow",                        shadow);
 128         OPT("sign-compare",                  sign_compare);
 129         OPT("strict-prototypes",             strict_prototypes);
 130         OPT("switch-default",                switch_default);
 131         OPT("unknown-pragmas",               unknown_pragmas);
 132         OPT("unreachable-code",              unreachable_code);
 133         OPTX("unused") {
 134                 SET(unused_function);
 135                 SET(unused_label);
 136                 SET(unused_parameter);
 137                 SET(unused_value);
 138                 SET(unused_variable);
 139         }
 140         OPT("unused-function",               unused_function);
 141         OPT("unused-label",                  unused_label);
 142         OPT("unused-parameter",              unused_parameter);
 143         OPT("unused-value",                  unused_value);
 144         OPT("unused-variable",               unused_variable);
 145 #undef OPT
 146 #undef SET
 147 #undef OPT_X
 148         else {
 149                 fprintf(stderr, "warning: ignoring unknown option -W%s\n", opt);
 150         }
 151 }