2 * This file is part of cparser.
3 * Copyright (C) 2007-2009 Matthias Braun <matze@braunis.de>
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.
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.
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
28 static warning_switch_t warning[] = {
29 [WARN_ADDRESS] = { WARN_LEVEL_ON, "address" },
30 [WARN_AGGREGATE_RETURN] = { WARN_LEVEL_OFF, "aggregate-return" },
31 [WARN_ATTRIBUTE] = { WARN_LEVEL_ON, "attribute" },
32 [WARN_CAST_QUAL] = { WARN_LEVEL_OFF, "cast-qual", },
33 [WARN_CHAR_SUBSCRIPTS] = { WARN_LEVEL_ON, "char-subscripts", },
34 [WARN_COMMENT] = { WARN_LEVEL_OFF, "comment", },
35 [WARN_CONVERSION] = { WARN_LEVEL_OFF, "conversion", },
36 [WARN_DECLARATION_AFTER_STATEMENT] = { WARN_LEVEL_OFF, "declaration-after-statement", },
37 [WARN_DEPRECATED_DECLARATIONS] = { WARN_LEVEL_ON, "deprecated-declarations", },
38 [WARN_DIV_BY_ZERO] = { WARN_LEVEL_ON, "div-by-zero", },
39 [WARN_EMPTY_STATEMENT] = { WARN_LEVEL_OFF, "empty-statement", },
40 [WARN_ERROR] = { WARN_LEVEL_OFF, "error" },
41 [WARN_FATAL_ERRORS] = { WARN_LEVEL_OFF, "fatal-errors" },
42 [WARN_FLOAT_EQUAL] = { WARN_LEVEL_OFF, "float-equal", },
43 [WARN_FORMAT] = { WARN_LEVEL_ON, "format" },
44 [WARN_IMPLICIT_FUNCTION_DECLARATION] = { WARN_LEVEL_ON, "implicit-function-declaration" },
45 [WARN_IMPLICIT_INT] = { WARN_LEVEL_ON, "implicit-int" },
46 [WARN_INIT_SELF] = { WARN_LEVEL_ON, "init-self", },
47 [WARN_LONG_LONG] = { WARN_LEVEL_OFF, "long-long" },
48 [WARN_MAIN] = { WARN_LEVEL_ON, "main", },
49 [WARN_MISSING_DECLARATIONS] = { WARN_LEVEL_OFF, "missing-declarations", },
50 [WARN_MISSING_NORETURN] = { WARN_LEVEL_OFF, "missing-noreturn", },
51 [WARN_MISSING_PROTOTYPES] = { WARN_LEVEL_OFF, "missing-prototypes", },
52 [WARN_MULTICHAR] = { WARN_LEVEL_ON, "multichar", },
53 [WARN_NESTED_EXTERNS] = { WARN_LEVEL_OFF, "nested-externs" },
54 [WARN_NONNULL] = { WARN_LEVEL_ON, "nonnull", },
55 [WARN_OLD_STYLE_DEFINITION] = { WARN_LEVEL_OFF, "old-style-definition", },
56 [WARN_OTHER] = { WARN_LEVEL_ON, "other" },
57 [WARN_PACKED] = { WARN_LEVEL_OFF, "packed", },
58 [WARN_PADDED] = { WARN_LEVEL_OFF, "padded", },
59 [WARN_PARENTHESES] = { WARN_LEVEL_OFF, "parentheses", },
60 [WARN_POINTER_ARITH] = { WARN_LEVEL_ON, "pointer-arith", },
61 [WARN_REDUNDANT_DECLS] = { WARN_LEVEL_ON, "redundant-decls", },
62 [WARN_RETURN_TYPE] = { WARN_LEVEL_ON, "return-type", },
63 [WARN_SHADOW] = { WARN_LEVEL_OFF, "shadow", },
64 [WARN_SHADOW_LOCAL] = { WARN_LEVEL_OFF, "shadow-local", },
65 [WARN_SIGN_COMPARE] = { WARN_LEVEL_OFF, "sign-compare", },
66 [WARN_STRICT_PROTOTYPES] = { WARN_LEVEL_ON, "strict-prototypes" },
67 [WARN_SWITCH_DEFAULT] = { WARN_LEVEL_OFF, "switch-default", },
68 [WARN_SWITCH_ENUM] = { WARN_LEVEL_OFF, "switch-enum", },
69 [WARN_TRADITIONAL] = { WARN_LEVEL_OFF, "traditional" },
70 [WARN_UNINITIALIZED] = { WARN_LEVEL_ON, "uninitialized", },
71 [WARN_UNKNOWN_PRAGMAS] = { WARN_LEVEL_ON, "unknown-pragmas", },
72 [WARN_UNREACHABLE_CODE] = { WARN_LEVEL_OFF, "unreachable-code" },
73 [WARN_UNUSED_FUNCTION] = { WARN_LEVEL_OFF, "unused-function", },
74 [WARN_UNUSED_LABEL] = { WARN_LEVEL_OFF, "unused-label", },
75 [WARN_UNUSED_PARAMETER] = { WARN_LEVEL_OFF, "unused-parameter", },
76 [WARN_UNUSED_VALUE] = { WARN_LEVEL_ON, "unused-value", },
77 [WARN_UNUSED_VARIABLE] = { WARN_LEVEL_OFF, "unused-variable", },
78 [WARN_WRITE_STRINGS] = { WARN_LEVEL_OFF, "write-strings", },
81 warning_switch_t const *get_warn_switch(warning_t const w)
83 assert((size_t)w < lengthof(warning));
84 assert(warning[w].name);
88 void print_warning_opt_help(void)
90 /* TODO: write explanations */
91 for (warning_switch_t* i = warning; i != endof(warning); ++i) {
92 put_help(i->name, "");
96 void set_warning_opt(const char *const opt)
100 warn_level_t const level =
101 strncmp(s, "no-", 3) == 0 ? s += 3, WARN_LEVEL_OFF : /* "no-" prefix */
102 strncmp(s, "error-", 6) == 0 ? s += 6, WARN_LEVEL_ERROR : /* "error-" prefix */
105 for (warning_switch_t* i = warning; i != endof(warning); ++i) {
106 if (strcmp(i->name, s) == 0) {
112 if (s[0] == '\0') { // -W is an alias for -Wextra
115 #define OPTX(x) else if (strcmp(s, x) == 0)
116 #define SET(y) (void)(warning[y].level = level)
118 /* Note: this switched on a lot more warnings than gcc's -Wall */
121 SET(WARN_CHAR_SUBSCRIPTS);
123 SET(WARN_EMPTY_STATEMENT);
125 SET(WARN_IMPLICIT_FUNCTION_DECLARATION);
126 SET(WARN_IMPLICIT_INT);
129 SET(WARN_MISSING_DECLARATIONS);
132 SET(WARN_PARENTHESES);
133 SET(WARN_POINTER_ARITH);
134 SET(WARN_REDUNDANT_DECLS);
135 SET(WARN_RETURN_TYPE);
136 SET(WARN_SHADOW_LOCAL);
137 SET(WARN_SIGN_COMPARE);
138 SET(WARN_STRICT_PROTOTYPES);
139 SET(WARN_SWITCH_ENUM);
140 SET(WARN_UNINITIALIZED);
141 SET(WARN_UNKNOWN_PRAGMAS);
142 SET(WARN_UNREACHABLE_CODE);
143 SET(WARN_UNUSED_FUNCTION);
144 SET(WARN_UNUSED_LABEL);
145 SET(WARN_UNUSED_PARAMETER);
146 SET(WARN_UNUSED_VALUE);
147 SET(WARN_UNUSED_VARIABLE);
152 // TODO SET(function_end_without_return);
153 SET(WARN_EMPTY_STATEMENT);
154 // TODO SET(incomplete_aggregate_init);
155 // TODO SET(missing_field_initializers);
156 // TODO SET(pointless_comparison);
158 SET(WARN_UNUSED_PARAMETER);
159 SET(WARN_UNUSED_VALUE);
162 SET(WARN_IMPLICIT_FUNCTION_DECLARATION);
163 SET(WARN_IMPLICIT_INT);
166 SET(WARN_UNUSED_FUNCTION);
167 SET(WARN_UNUSED_LABEL);
168 SET(WARN_UNUSED_PARAMETER);
169 SET(WARN_UNUSED_VALUE);
170 SET(WARN_UNUSED_VARIABLE);
175 fprintf(stderr, "warning: ignoring unknown option -W%s\n", opt);
179 void disable_all_warnings(void)
181 for (warning_switch_t* i = warning; i != endof(warning); ++i) {
182 if (i != &warning[WARN_ERROR] &&
183 i != &warning[WARN_FATAL_ERRORS]) {
184 i->level = WARN_LEVEL_OFF;