POSIX: bump version to 1.30
[perl.git] / feature.h
1 /* -*- buffer-read-only: t -*-
2    !!!!!!!   DO NOT EDIT THIS FILE   !!!!!!!
3    This file is built by regen/feature.pl.
4    Any changes made here will be lost!
5  */
6
7
8 #if defined(PERL_CORE) || defined (PERL_EXT)
9
10 #define HINT_FEATURE_SHIFT      26
11
12 #define FEATURE_BUNDLE_DEFAULT  0
13 #define FEATURE_BUNDLE_510      1
14 #define FEATURE_BUNDLE_511      2
15 #define FEATURE_BUNDLE_515      3
16 #define FEATURE_BUNDLE_CUSTOM   (HINT_FEATURE_MASK >> HINT_FEATURE_SHIFT)
17
18 #define CURRENT_HINTS \
19     (PL_curcop == &PL_compiling ? PL_hints : PL_curcop->cop_hints)
20 #define CURRENT_FEATURE_BUNDLE \
21     ((CURRENT_HINTS & HINT_FEATURE_MASK) >> HINT_FEATURE_SHIFT)
22
23 #define FEATURE_IS_ENABLED(name)                                        \
24         ((CURRENT_HINTS                                                  \
25            & HINT_LOCALIZE_HH)                                            \
26             && Perl_feature_is_enabled(aTHX_ STR_WITH_LEN(name)))
27 /* The longest string we pass in.  */
28 #define MAX_FEATURE_LEN (sizeof("evalbytes")-1)
29
30 #define FEATURE_FC_IS_ENABLED \
31     ( \
32         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
33      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
34          FEATURE_IS_ENABLED("fc")) \
35     )
36
37 #define FEATURE_SAY_IS_ENABLED \
38     ( \
39         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
40          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
41      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
42          FEATURE_IS_ENABLED("say")) \
43     )
44
45 #define FEATURE_STATE_IS_ENABLED \
46     ( \
47         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
48          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
49      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
50          FEATURE_IS_ENABLED("state")) \
51     )
52
53 #define FEATURE_SWITCH_IS_ENABLED \
54     ( \
55         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
56          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
57      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
58          FEATURE_IS_ENABLED("switch")) \
59     )
60
61 #define FEATURE_EVALBYTES_IS_ENABLED \
62     ( \
63         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
64      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
65          FEATURE_IS_ENABLED("evalbytes")) \
66     )
67
68 #define FEATURE_ARYBASE_IS_ENABLED \
69     ( \
70         CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_511 \
71      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
72          FEATURE_IS_ENABLED("arybase")) \
73     )
74
75 #define FEATURE___SUB___IS_ENABLED \
76     ( \
77         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
78      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
79          FEATURE_IS_ENABLED("__SUB__")) \
80     )
81
82 #define FEATURE_UNIEVAL_IS_ENABLED \
83     ( \
84         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
85      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
86          FEATURE_IS_ENABLED("unieval")) \
87     )
88
89 #define FEATURE_UNICODE_IS_ENABLED \
90     ( \
91         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_511 && \
92          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
93      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
94          FEATURE_IS_ENABLED("unicode")) \
95     )
96
97
98 #endif /* PERL_CORE or PERL_EXT */
99
100 #ifdef PERL_IN_OP_C
101 PERL_STATIC_INLINE void
102 S_enable_feature_bundle(pTHX_ SV *ver)
103 {
104     SV *comp_ver = sv_newmortal();
105     PL_hints = (PL_hints &~ HINT_FEATURE_MASK)
106              | (
107                   (sv_setnv(comp_ver, 5.015),
108                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
109                         ? FEATURE_BUNDLE_515 :
110                   (sv_setnv(comp_ver, 5.011),
111                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
112                         ? FEATURE_BUNDLE_511 :
113                   (sv_setnv(comp_ver, 5.009005),
114                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
115                         ? FEATURE_BUNDLE_510 :
116                           FEATURE_BUNDLE_DEFAULT
117                ) << HINT_FEATURE_SHIFT;
118     /* special case */
119     assert(PL_curcop == &PL_compiling);
120     if (FEATURE_UNICODE_IS_ENABLED) PL_hints |=  HINT_UNI_8_BIT;
121     else                            PL_hints &= ~HINT_UNI_8_BIT;
122 }
123 #endif /* PERL_IN_OP_C */
124
125 /* ex: set ro: */