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