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         .format                        = true,
  28         .nonnull                       = true,
  29         .empty_statement               = false,
  30         .fatal_errors                  = false,
  31         .float_equal                   = false,
  32         .implicit_function_declaration = true,
  33         .implicit_int                  = true,
  34         .main                          = true,
  35         .missing_declarations          = false,
  36         .missing_prototypes            = false,
  37         .multichar                     = true,
  38         .redundant_decls               = true,
  39         .return_type                   = true,
  40         .s_are_errors                  = false,
  41         .shadow                        = false,
  42         .sign_compare                  = false,
  43         .strict_prototypes             = true,
  44         .switch_default                = false,
  45         .unknown_pragmas               = true,
  46         .unused_function               = false,
  47         .unused_label                  = false,
  48         .unused_parameter              = false,
  49         .unused_value                  = true,
  50         .unused_variable               = false
  51 };
  52
  53 void set_warning_opt(const char *const opt)
  54 {
  55         const char* s = opt;
  56
  57         bool state = true;
  58
  59         /* "no-" prefix */
  60         if (s[0] == 'n' && s[1] == 'o' && s[2] == '-') {
  61                 s += 3;
  62                 state = false;
  63         }
  64
  65         if (0) {}
  66 #define OPTX(x)   else if (strcmp(s, x) == 0)
  67 #define SET(y)    warning.y = state;
  68 #define OPT(x, y) OPTX(x) SET(y)
  69         OPTX("all") {
  70                 /* Note: this switched on a lot of more warnings than gcc's -Wall */
  71                 SET(attribute)
  72                 SET(char_subscripts)
  73                 SET(empty_statement)
  74                 SET(format)
  75                 SET(implicit_function_declaration)
  76                 SET(implicit_int)
  77                 SET(main)
  78                 SET(nonnull)
  79                 SET(redundant_decls)
  80                 SET(return_type)
  81                 SET(shadow)
  82                 SET(sign_compare)
  83                 SET(strict_prototypes)
  84                 SET(unknown_pragmas)
  85                 SET(unused_function)
  86                 SET(unused_label)
  87                 SET(unused_parameter)
  88                 SET(unused_value)
  89                 SET(unused_variable)
  90         }
  91         OPT("attribute",                     attribute)
  92         OPT("char-subscripts",               char_subscripts)
  93         OPT("empty-statement",               empty_statement)
  94         OPT("error",                         s_are_errors)
  95         OPTX("extra") {
  96                 /* TODO */
  97                 // TODO SET(function_end_without_return)
  98                 SET(empty_statement)
  99                 // TODO SET(incomplete_aggregate_init)
 100                 // TODO SET(pointless_comparison)
 101                 // TODO SET(sign_compare)
 102                 SET(unused_parameter)
 103                 SET(unused_value)
 104         }
 105         OPT("fatal-errors",                  fatal_errors)
 106         OPT("float-equal",                   float_equal)
 107         OPTX("format") {
 108                 SET(format)
 109                 SET(nonnull)
 110         }
 111         OPT("nonnull",                       nonnull)
 112         OPTX("implicit") {
 113                 SET(implicit_function_declaration)
 114                 SET(implicit_int)
 115         }
 116         OPT("implicit-function-declaration", implicit_function_declaration)
 117         OPT("implicit-int",                  implicit_int)
 118         OPT("main",                          main)
 119         OPT("missing-declarations",          missing_declarations)
 120         OPT("missing-prototypes",            missing_prototypes)
 121         OPT("multichar",                     multichar)
 122         OPT("redundant-decls",               redundant_decls)
 123         OPT("return-type",                   return_type)
 124         OPT("shadow",                        shadow)
 125         OPT("sign-compare",                  sign_compare)
 126         OPT("strict-prototypes",             strict_prototypes)
 127         OPT("switch-default",                switch_default)
 128         OPT("unknown-pragmas",               unknown_pragmas)
 129         OPTX("unused") {
 130                 SET(unused_function)
 131                 SET(unused_label)
 132                 SET(unused_parameter)
 133                 SET(unused_value)
 134                 SET(unused_variable)
 135         }
 136         OPT("unused-function",               unused_function)
 137         OPT("unused-label",                  unused_label)
 138         OPT("unused-parameter",              unused_parameter)
 139         OPT("unused-value",                  unused_value)
 140         OPT("unused-variable",               unused_variable)
 141 #undef OPT
 142 #undef SET
 143 #undef OPT_X
 144         else {
 145                 fprintf(stderr, "warning: ignoring unknown option -W%s\n", opt);
 146         }
 147 }