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 #ifndef PERL_FEATURE_H_
   9 #define PERL_FEATURE_H_
  10
  11 #if defined(PERL_CORE) || defined (PERL_EXT)
  12
  13 #define HINT_FEATURE_SHIFT      26
  14
  15 #define FEATURE_BUNDLE_DEFAULT  0
  16 #define FEATURE_BUNDLE_510      1
  17 #define FEATURE_BUNDLE_511      2
  18 #define FEATURE_BUNDLE_515      3
  19 #define FEATURE_BUNDLE_523      4
  20 #define FEATURE_BUNDLE_527      5
  21 #define FEATURE_BUNDLE_CUSTOM   (HINT_FEATURE_MASK >> HINT_FEATURE_SHIFT)
  22
  23 #define CURRENT_HINTS \
  24     (PL_curcop == &PL_compiling ? PL_hints : PL_curcop->cop_hints)
  25 #define CURRENT_FEATURE_BUNDLE \
  26     ((CURRENT_HINTS & HINT_FEATURE_MASK) >> HINT_FEATURE_SHIFT)
  27
  28 /* Avoid using ... && Perl_feature_is_enabled(...) as that triggers a bug in
  29    the HP-UX cc on PA-RISC */
  30 #define FEATURE_IS_ENABLED(name)                                        \
  31         ((CURRENT_HINTS                                                  \
  32            & HINT_LOCALIZE_HH)                                            \
  33             ? Perl_feature_is_enabled(aTHX_ STR_WITH_LEN(name)) : FALSE)
  34 /* The longest string we pass in.  */
  35 #define MAX_FEATURE_LEN (sizeof("postderef_qq")-1)
  36
  37 #define FEATURE_FC_IS_ENABLED \
  38     ( \
  39         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_515 && \
  40          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
  41      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  42          FEATURE_IS_ENABLED("fc")) \
  43     )
  44
  45 #define FEATURE_SAY_IS_ENABLED \
  46     ( \
  47         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
  48          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
  49      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  50          FEATURE_IS_ENABLED("say")) \
  51     )
  52
  53 #define FEATURE_STATE_IS_ENABLED \
  54     ( \
  55         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
  56          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
  57      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  58          FEATURE_IS_ENABLED("state")) \
  59     )
  60
  61 #define FEATURE_SWITCH_IS_ENABLED \
  62     ( \
  63         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
  64          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
  65      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  66          FEATURE_IS_ENABLED("switch")) \
  67     )
  68
  69 #define FEATURE_BITWISE_IS_ENABLED \
  70     ( \
  71         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_527 \
  72      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  73          FEATURE_IS_ENABLED("bitwise")) \
  74     )
  75
  76 #define FEATURE_EVALBYTES_IS_ENABLED \
  77     ( \
  78         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_515 && \
  79          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
  80      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  81          FEATURE_IS_ENABLED("evalbytes")) \
  82     )
  83
  84 #define FEATURE_SIGNATURES_IS_ENABLED \
  85     ( \
  86         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  87          FEATURE_IS_ENABLED("signatures") \
  88     )
  89
  90 #define FEATURE___SUB___IS_ENABLED \
  91     ( \
  92         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_515 && \
  93          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
  94      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  95          FEATURE_IS_ENABLED("__SUB__")) \
  96     )
  97
  98 #define FEATURE_REFALIASING_IS_ENABLED \
  99     ( \
 100         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 101          FEATURE_IS_ENABLED("refaliasing") \
 102     )
 103
 104 #define FEATURE_POSTDEREF_QQ_IS_ENABLED \
 105     ( \
 106         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_523 && \
 107          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
 108      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 109          FEATURE_IS_ENABLED("postderef_qq")) \
 110     )
 111
 112 #define FEATURE_UNIEVAL_IS_ENABLED \
 113     ( \
 114         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_515 && \
 115          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
 116      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 117          FEATURE_IS_ENABLED("unieval")) \
 118     )
 119
 120 #define FEATURE_MYREF_IS_ENABLED \
 121     ( \
 122         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 123          FEATURE_IS_ENABLED("myref") \
 124     )
 125
 126 #define FEATURE_UNICODE_IS_ENABLED \
 127     ( \
 128         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_511 && \
 129          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
 130      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 131          FEATURE_IS_ENABLED("unicode")) \
 132     )
 133
 134
 135 #endif /* PERL_CORE or PERL_EXT */
 136
 137 #ifdef PERL_IN_OP_C
 138 PERL_STATIC_INLINE void
 139 S_enable_feature_bundle(pTHX_ SV *ver)
 140 {
 141     SV *comp_ver = sv_newmortal();
 142     PL_hints = (PL_hints &~ HINT_FEATURE_MASK)
 143              | (
 144                   (sv_setnv(comp_ver, 5.027),
 145                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 146                         ? FEATURE_BUNDLE_527 :
 147                   (sv_setnv(comp_ver, 5.023),
 148                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 149                         ? FEATURE_BUNDLE_523 :
 150                   (sv_setnv(comp_ver, 5.015),
 151                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 152                         ? FEATURE_BUNDLE_515 :
 153                   (sv_setnv(comp_ver, 5.011),
 154                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 155                         ? FEATURE_BUNDLE_511 :
 156                   (sv_setnv(comp_ver, 5.009005),
 157                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 158                         ? FEATURE_BUNDLE_510 :
 159                           FEATURE_BUNDLE_DEFAULT
 160                ) << HINT_FEATURE_SHIFT;
 161     /* special case */
 162     assert(PL_curcop == &PL_compiling);
 163     if (FEATURE_UNICODE_IS_ENABLED) PL_hints |=  HINT_UNI_8_BIT;
 164     else                            PL_hints &= ~HINT_UNI_8_BIT;
 165 }
 166 #endif /* PERL_IN_OP_C */
 167
 168 #endif /* PERL_FEATURE_H_ */
 169
 170 /* ex: set ro: */