summaryrefslogtreecommitdiff
path: root/warnings.h
blob: 58f52272dea5456772727f94cd7458b597b0ce8f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
/* -*- buffer-read-only: t -*-
   !!!!!!!   DO NOT EDIT THIS FILE   !!!!!!!
   This file is built by regen/warnings.pl.
   Any changes made here will be lost!
 */


#define Off(x)			((x) / 8)
#define Bit(x)			(1 << ((x) % 8))
#define IsSet(a, x)		((a)[Off(x)] & Bit(x))


#define G_WARN_OFF		0 	/* $^W == 0 */
#define G_WARN_ON		1	/* -w flag and $^W != 0 */
#define G_WARN_ALL_ON		2	/* -W flag */
#define G_WARN_ALL_OFF		4	/* -X flag */
#define G_WARN_ONCE		8	/* set if 'once' ever enabled */
#define G_WARN_ALL_MASK		(G_WARN_ALL_ON|G_WARN_ALL_OFF)

#define pWARN_STD		NULL
#define pWARN_ALL		(STRLEN *) &PL_WARN_ALL    /* use warnings 'all' */
#define pWARN_NONE		(STRLEN *) &PL_WARN_NONE   /* no  warnings 'all' */

#define specialWARN(x)		((x) == pWARN_STD || (x) == pWARN_ALL ||	\
				 (x) == pWARN_NONE)

/* if PL_warnhook is set to this value, then warnings die */
#define PERL_WARNHOOK_FATAL	(&PL_sv_placeholder)

/* Warnings Categories added in Perl 5.008 */

#define WARN_ALL			 0
#define WARN_CLOSURE			 1
#define WARN_DEPRECATED			 2
#define WARN_EXITING			 3
#define WARN_GLOB			 4
#define WARN_IO				 5
#define WARN_CLOSED			 6
#define WARN_EXEC			 7
#define WARN_LAYER			 8
#define WARN_NEWLINE			 9
#define WARN_PIPE			 10
#define WARN_UNOPENED			 11
#define WARN_MISC			 12
#define WARN_NUMERIC			 13
#define WARN_ONCE			 14
#define WARN_OVERFLOW			 15
#define WARN_PACK			 16
#define WARN_PORTABLE			 17
#define WARN_RECURSION			 18
#define WARN_REDEFINE			 19
#define WARN_REGEXP			 20
#define WARN_SEVERE			 21
#define WARN_DEBUGGING			 22
#define WARN_INPLACE			 23
#define WARN_INTERNAL			 24
#define WARN_MALLOC			 25
#define WARN_SIGNAL			 26
#define WARN_SUBSTR			 27
#define WARN_SYNTAX			 28
#define WARN_AMBIGUOUS			 29
#define WARN_BAREWORD			 30
#define WARN_DIGIT			 31
#define WARN_PARENTHESIS		 32
#define WARN_PRECEDENCE			 33
#define WARN_PRINTF			 34
#define WARN_PROTOTYPE			 35
#define WARN_QW				 36
#define WARN_RESERVED			 37
#define WARN_SEMICOLON			 38
#define WARN_TAINT			 39
#define WARN_THREADS			 40
#define WARN_UNINITIALIZED		 41
#define WARN_UNPACK			 42
#define WARN_UNTIE			 43
#define WARN_UTF8			 44
#define WARN_VOID			 45

/* Warnings Categories added in Perl 5.011 */

#define WARN_IMPRECISION		 46
#define WARN_ILLEGALPROTO		 47

/* Warnings Categories added in Perl 5.013 */

#define WARN_NON_UNICODE		 48
#define WARN_NONCHAR			 49
#define WARN_SURROGATE			 50

/* Warnings Categories added in Perl 5.017 */

#define WARN_EXPERIMENTAL		 51
#define WARN_EXPERIMENTAL__LEXICAL_SUBS	 52
#define WARN_EXPERIMENTAL__REGEX_SETS	 53
#define WARN_EXPERIMENTAL__SMARTMATCH	 54

/* Warnings Categories added in Perl 5.019 */

#define WARN_EXPERIMENTAL__POSTDEREF	 55
#define WARN_EXPERIMENTAL__SIGNATURES	 56
#define WARN_SYSCALLS			 57

/* Warnings Categories added in Perl 5.021 */

#define WARN_EXPERIMENTAL__BITWISE	 58
#define WARN_EXPERIMENTAL__CONST_ATTR	 59
#define WARN_EXPERIMENTAL__RE_STRICT	 60
#define WARN_EXPERIMENTAL__REFALIASING	 61
#define WARN_EXPERIMENTAL__WIN32_PERLIO	 62
#define WARN_LOCALE			 63
#define WARN_MISSING			 64
#define WARN_REDUNDANT			 65

/* Warnings Categories added in Perl 5.025 */

#define WARN_EXPERIMENTAL__DECLARED_REFS 66

/* Warnings Categories added in Perl 5.027 */

#define WARN_EXPERIMENTAL__ALPHA_ASSERTIONS 67
#define WARN_EXPERIMENTAL__SCRIPT_RUN	 68
#define WARN_SHADOW			 69

#define WARNsize			 18
#define WARN_ALLstring			 "\125\125\125\125\125\125\125\125\125\125\125\125\125\125\125\125\125\125"
#define WARN_NONEstring			 "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"

#define isLEXWARN_on \
	cBOOL(PL_curcop && PL_curcop->cop_warnings != pWARN_STD)
#define isLEXWARN_off \
	cBOOL(!PL_curcop || PL_curcop->cop_warnings == pWARN_STD)
#define isWARN_ONCE	(PL_dowarn & (G_WARN_ON|G_WARN_ONCE))
#define isWARN_on(c,x)	(IsSet((U8 *)(c + 1), 2*(x)))
#define isWARNf_on(c,x)	(IsSet((U8 *)(c + 1), 2*(x)+1))

#define DUP_WARNINGS(p)		\
    (specialWARN(p) ? (STRLEN*)(p)	\
    : (STRLEN*)CopyD(p, PerlMemShared_malloc(sizeof(*p)+*p), sizeof(*p)+*p, \
		     			     char))

/*

=head1 Warning and Dieing

=for apidoc Am|bool|ckWARN|U32 w

Returns a boolean as to whether or not warnings are enabled for the warning
category C<w>.  If the category is by default enabled even if not within the
scope of S<C<use warnings>>, instead use the L</ckWARN_d> macro.

=for apidoc Am|bool|ckWARN_d|U32 w

Like C<L</ckWARN>>, but for use if and only if the warning category is by
default enabled even if not within the scope of S<C<use warnings>>.

=for apidoc Am|bool|ckWARN2|U32 w1|U32 w2

Like C<L</ckWARN>>, but takes two warnings categories as input, and returns
TRUE if either is enabled.  If either category is by default enabled even if
not within the scope of S<C<use warnings>>, instead use the L</ckWARN2_d>
macro.  The categories must be completely independent, one may not be
subclassed from the other.

=for apidoc Am|bool|ckWARN2_d|U32 w1|U32 w2

Like C<L</ckWARN2>>, but for use if and only if either warning category is by
default enabled even if not within the scope of S<C<use warnings>>.

=for apidoc Am|bool|ckWARN3|U32 w1|U32 w2|U32 w3

Like C<L</ckWARN2>>, but takes three warnings categories as input, and returns
TRUE if any is enabled.  If any of the categories is by default enabled even
if not within the scope of S<C<use warnings>>, instead use the L</ckWARN3_d>
macro.  The categories must be completely independent, one may not be
subclassed from any other.

=for apidoc Am|bool|ckWARN3_d|U32 w1|U32 w2|U32 w3

Like C<L</ckWARN3>>, but for use if and only if any of the warning categories
is by default enabled even if not within the scope of S<C<use warnings>>.

=for apidoc Am|bool|ckWARN4|U32 w1|U32 w2|U32 w3|U32 w4

Like C<L</ckWARN3>>, but takes four warnings categories as input, and returns
TRUE if any is enabled.  If any of the categories is by default enabled even
if not within the scope of S<C<use warnings>>, instead use the L</ckWARN4_d>
macro.  The categories must be completely independent, one may not be
subclassed from any other.

=for apidoc Am|bool|ckWARN4_d|U32 w1|U32 w2|U32 w3|U32 w4

Like C<L</ckWARN4>>, but for use if and only if any of the warning categories
is by default enabled even if not within the scope of S<C<use warnings>>.

=cut

*/

#define ckWARN(w)		Perl_ckwarn(aTHX_ packWARN(w))

/* The w1, w2 ... should be independent warnings categories; one shouldn't be
 * a subcategory of any other */

#define ckWARN2(w1,w2)		Perl_ckwarn(aTHX_ packWARN2(w1,w2))
#define ckWARN3(w1,w2,w3)	Perl_ckwarn(aTHX_ packWARN3(w1,w2,w3))
#define ckWARN4(w1,w2,w3,w4)	Perl_ckwarn(aTHX_ packWARN4(w1,w2,w3,w4))

#define ckWARN_d(w)		Perl_ckwarn_d(aTHX_ packWARN(w))
#define ckWARN2_d(w1,w2)	Perl_ckwarn_d(aTHX_ packWARN2(w1,w2))
#define ckWARN3_d(w1,w2,w3)	Perl_ckwarn_d(aTHX_ packWARN3(w1,w2,w3))
#define ckWARN4_d(w1,w2,w3,w4)	Perl_ckwarn_d(aTHX_ packWARN4(w1,w2,w3,w4))

#define WARNshift		8

#define packWARN(a)		(a                                      )

/* The a, b, ... should be independent warnings categories; one shouldn't be
 * a subcategory of any other */

#define packWARN2(a,b)		((a) | ((b)<<8)                         )
#define packWARN3(a,b,c)	((a) | ((b)<<8) | ((c)<<16)             )
#define packWARN4(a,b,c,d)	((a) | ((b)<<8) | ((c)<<16) | ((d) <<24))

#define unpackWARN1(x)		((x)        & 0xFF)
#define unpackWARN2(x)		(((x) >>8)  & 0xFF)
#define unpackWARN3(x)		(((x) >>16) & 0xFF)
#define unpackWARN4(x)		(((x) >>24) & 0xFF)

#define ckDEAD(x)							\
   (PL_curcop &&                                                        \
    !specialWARN(PL_curcop->cop_warnings) &&			        \
    (isWARNf_on(PL_curcop->cop_warnings, unpackWARN1(x)) ||	        \
      (unpackWARN2(x) &&                                                \
	(isWARNf_on(PL_curcop->cop_warnings, unpackWARN2(x)) ||	        \
	  (unpackWARN3(x) &&                                            \
	    (isWARNf_on(PL_curcop->cop_warnings, unpackWARN3(x)) ||	\
	      (unpackWARN4(x) &&                                        \
		isWARNf_on(PL_curcop->cop_warnings, unpackWARN4(x)))))))))

/* end of file warnings.h */

/* ex: set ro: */