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         .aggregate_return              = false,
  26         .attribute                     = true,
  27         .char_subscripts               = true,
  28         .cast_qual                     = false,
  29         .declaration_after_statement   = false,
  30         .deprecated_declarations       = true,
  31         .div_by_zero                   = true,
  32         .empty_statement               = false,
  33         .fatal_errors                  = false,
  34         .float_equal                   = false,
  35         .format                        = true,
  36         .implicit_function_declaration = true,
  37         .implicit_int                  = true,
  38         .long_long                     = false,
  39         .main                          = true,
  40         .missing_declarations          = false,
  41         .missing_noreturn              = false,
  42         .missing_prototypes            = false,
  43         .multichar                     = true,
  44         .nested_externs                = false,
  45         .nonnull                       = true,
  46         .pointer_arith                 = true,
  47         .redundant_decls               = true,
  48         .return_type                   = true,
  49         .s_are_errors                  = false,
  50         .shadow                        = false,
  51         .sign_compare                  = false,
  52         .strict_prototypes             = true,
  53         .switch_default                = false,
  54         .switch_enum                   = false,
  55         .unknown_pragmas               = true,
  56         .unreachable_code              = false,
  57         .unused_function               = false,
  58         .unused_label                  = false,
  59         .unused_parameter              = false,
  60         .unused_value                  = true,
  61         .unused_variable               = false,
  62         .write_strings                 = false
  63 };
  64
  65 void set_warning_opt(const char *const opt)
  66 {
  67         const char* s = opt;
  68
  69         bool state = true;
  70
  71         /* "no-" prefix */
  72         if (s[0] == 'n' && s[1] == 'o' && s[2] == '-') {
  73                 s += 3;
  74                 state = false;
  75         }
  76
  77         if (0) {}
  78 #define OPTX(x)   else if (strcmp(s, x) == 0)
  79 #define SET(y)    (void)(warning.y = state)
  80 #define OPT(x, y) OPTX(x) SET(y)
  81         OPTX("all") {
  82                 /* Note: this switched on a lot of more warnings than gcc's -Wall */
  83                 SET(attribute);
  84                 SET(char_subscripts);
  85                 // TODO SET(comment);
  86                 SET(empty_statement);
  87                 SET(format);
  88                 SET(implicit_function_declaration);
  89                 SET(implicit_int);
  90                 SET(main);
  91                 SET(nonnull);
  92                 SET(pointer_arith);
  93                 SET(redundant_decls);
  94                 SET(return_type);
  95                 SET(shadow);
  96                 SET(sign_compare);
  97                 SET(strict_prototypes);
  98                 SET(switch_enum);
  99                 SET(unknown_pragmas);
 100                 SET(unreachable_code);
 101                 SET(unused_function);
 102                 SET(unused_label);
 103                 SET(unused_parameter);
 104                 SET(unused_value);
 105                 SET(unused_variable);
 106         }
 107         OPT("aggregate-return",              aggregate_return);
 108         OPT("attribute",                     attribute);
 109         OPT("char-subscripts",               char_subscripts);
 110         OPT("cast-qual",                     cast_qual);
 111         OPT("declaration-after-statement",   declaration_after_statement);
 112         OPT("deprecated-declarations",       deprecated_declarations);
 113         OPT("div_by_zero",                   div_by_zero);
 114         OPT("empty-statement",               empty_statement);
 115         OPT("error",                         s_are_errors);
 116         OPTX("extra") {
 117                 /* TODO */
 118                 // TODO SET(function_end_without_return);
 119                 SET(empty_statement);
 120                 // TODO SET(incomplete_aggregate_init);
 121                 // TODO SET(missing_field_initializers);
 122                 // TODO SET(pointless_comparison);
 123                 SET(unused_parameter);
 124                 SET(unused_value);
 125         }
 126         OPT("fatal-errors",                  fatal_errors);
 127         OPT("float-equal",                   float_equal);
 128         OPTX("format") {
 129                 SET(format);
 130                 SET(nonnull);
 131         }
 132         OPTX("implicit") {
 133                 SET(implicit_function_declaration);
 134                 SET(implicit_int);
 135         }
 136         OPT("implicit-function-declaration", implicit_function_declaration);
 137         OPT("implicit-int",                  implicit_int);
 138         OPT("long-long",                     long_long);
 139         OPT("main",                          main);
 140         OPT("missing-declarations",          missing_declarations);
 141         OPT("missing-noreturn",              missing_noreturn);
 142         OPT("missing-prototypes",            missing_prototypes);
 143         OPT("multichar",                     multichar);
 144         OPT("nested-externs",                nested_externs);
 145         OPT("nonnull",                       nonnull);
 146         OPT("pointer_arith",                 pointer_arith);
 147         OPT("redundant-decls",               redundant_decls);
 148         OPT("return-type",                   return_type);
 149         OPT("shadow",                        shadow);
 150         OPT("sign-compare",                  sign_compare);
 151         OPT("strict-prototypes",             strict_prototypes);
 152         OPT("switch-default",                switch_default);
 153         OPT("switch-enum",                   switch_enum);
 154         OPT("unknown-pragmas",               unknown_pragmas);
 155         OPT("unreachable-code",              unreachable_code);
 156         OPTX("unused") {
 157                 SET(unused_function);
 158                 SET(unused_label);
 159                 SET(unused_parameter);
 160                 SET(unused_value);
 161                 SET(unused_variable);
 162         }
 163         OPT("unused-function",               unused_function);
 164         OPT("unused-label",                  unused_label);
 165         OPT("unused-parameter",              unused_parameter);
 166         OPT("unused-value",                  unused_value);
 167         OPT("unused-variable",               unused_variable);
 168         OPT("write-strings",                 write_strings);
 169 #undef OPT
 170 #undef SET
 171 #undef OPT_X
 172         else {
 173                 fprintf(stderr, "warning: ignoring unknown option -W%s\n", opt);
 174         }
 175 }