regcomp.c: Remove redundant code
[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 /* Avoid using ... && Perl_feature_is_enabled(...) as that triggers a bug in
24    the HP-UX cc on PA-RISC */
25 #define FEATURE_IS_ENABLED(name)                                        \
26         ((CURRENT_HINTS                                                  \
27            & HINT_LOCALIZE_HH)                                            \
28             ? Perl_feature_is_enabled(aTHX_ STR_WITH_LEN(name)) : FALSE)
29 /* The longest string we pass in.  */
30 #define MAX_FEATURE_LEN (sizeof("evalbytes")-1)
31
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
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     ( \
72         CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_511 \
73      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
74          FEATURE_IS_ENABLED("arybase")) \
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
84 #define FEATURE_LEXSUBS_IS_ENABLED \
85     ( \
86         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
87          FEATURE_IS_ENABLED("lexsubs") \
88     )
89
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
106 #endif /* PERL_CORE or PERL_EXT */
107
108 #ifdef PERL_IN_OP_C
109 PERL_STATIC_INLINE void
110 S_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;
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;
130 }
131 #endif /* PERL_IN_OP_C */
132
133 /* ex: set ro: */