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[perl5.git] / feature.h
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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
2b9e0ab7 16#define FEATURE_BUNDLE_CUSTOM (HINT_FEATURE_MASK >> HINT_FEATURE_SHIFT)
f2c01b15 17
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18#define CURRENT_HINTS \
19 (PL_curcop == &PL_compiling ? PL_hints : PL_curcop->cop_hints)
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20#define CURRENT_FEATURE_BUNDLE \
21 ((CURRENT_HINTS & HINT_FEATURE_MASK) >> HINT_FEATURE_SHIFT)
d1fd0100 22
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23/* Avoid using ... && Perl_feature_is_enabled(...) as that triggers a bug in
24 the HP-UX cc on PA-RISC */
7d058bc9 25#define FEATURE_IS_ENABLED(name) \
ef744b29 26 ((CURRENT_HINTS \
7d058bc9 27 & HINT_LOCALIZE_HH) \
fc4b5f72 28 ? Perl_feature_is_enabled(aTHX_ STR_WITH_LEN(name)) : FALSE)
7d058bc9 29/* The longest string we pass in. */
1b6e8741 30#define MAX_FEATURE_LEN (sizeof("evalbytes")-1)
7d058bc9 31
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32#define FEATURE_FC_IS_ENABLED \
33 ( \
34 CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
35 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
36 FEATURE_IS_ENABLED("fc")) \
37 )
38
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39#define FEATURE_SAY_IS_ENABLED \
40 ( \
41 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
42 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
43 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
44 FEATURE_IS_ENABLED("say")) \
45 )
46
47#define FEATURE_STATE_IS_ENABLED \
48 ( \
49 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
50 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
51 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
52 FEATURE_IS_ENABLED("state")) \
53 )
54
55#define FEATURE_SWITCH_IS_ENABLED \
56 ( \
57 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
58 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
59 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
60 FEATURE_IS_ENABLED("switch")) \
61 )
62
63#define FEATURE_EVALBYTES_IS_ENABLED \
64 ( \
65 CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
66 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
67 FEATURE_IS_ENABLED("evalbytes")) \
68 )
69
70#define FEATURE_ARYBASE_IS_ENABLED \
71 ( \
beda0318 72 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_511 \
03222170 73 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
3fff3427 74 FEATURE_IS_ENABLED("arybase")) \
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75 )
76
77#define FEATURE___SUB___IS_ENABLED \
78 ( \
79 CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
80 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
81 FEATURE_IS_ENABLED("__SUB__")) \
82 )
83
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84#define FEATURE_LEXSUBS_IS_ENABLED \
85 ( \
86 CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
87 FEATURE_IS_ENABLED("lexsubs") \
88 )
89
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90#define FEATURE_UNIEVAL_IS_ENABLED \
91 ( \
92 CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
93 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
94 FEATURE_IS_ENABLED("unieval")) \
95 )
96
97#define FEATURE_UNICODE_IS_ENABLED \
98 ( \
99 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_511 && \
100 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
101 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
102 FEATURE_IS_ENABLED("unicode")) \
103 )
104
105
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106#endif /* PERL_CORE or PERL_EXT */
107
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108#ifdef PERL_IN_OP_C
109PERL_STATIC_INLINE void
110S_enable_feature_bundle(pTHX_ SV *ver)
111{
112 SV *comp_ver = sv_newmortal();
113 PL_hints = (PL_hints &~ HINT_FEATURE_MASK)
114 | (
115 (sv_setnv(comp_ver, 5.015),
116 vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
117 ? FEATURE_BUNDLE_515 :
118 (sv_setnv(comp_ver, 5.011),
119 vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
120 ? FEATURE_BUNDLE_511 :
121 (sv_setnv(comp_ver, 5.009005),
122 vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
123 ? FEATURE_BUNDLE_510 :
124 FEATURE_BUNDLE_DEFAULT
125 ) << HINT_FEATURE_SHIFT;
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126 /* special case */
127 assert(PL_curcop == &PL_compiling);
128 if (FEATURE_UNICODE_IS_ENABLED) PL_hints |= HINT_UNI_8_BIT;
129 else PL_hints &= ~HINT_UNI_8_BIT;
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130}
131#endif /* PERL_IN_OP_C */
132
f2c01b15 133/* ex: set ro: */