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_523      4
  17 #define FEATURE_BUNDLE_527      5
  18 #define FEATURE_BUNDLE_CUSTOM   (HINT_FEATURE_MASK >> HINT_FEATURE_SHIFT)
  19
  20 #define CURRENT_HINTS \
  21     (PL_curcop == &PL_compiling ? PL_hints : PL_curcop->cop_hints)
  22 #define CURRENT_FEATURE_BUNDLE \
  23     ((CURRENT_HINTS & HINT_FEATURE_MASK) >> HINT_FEATURE_SHIFT)
  24
  25 /* Avoid using ... && Perl_feature_is_enabled(...) as that triggers a bug in
  26    the HP-UX cc on PA-RISC */
  27 #define FEATURE_IS_ENABLED(name)                                        \
  28         ((CURRENT_HINTS                                                  \
  29            & HINT_LOCALIZE_HH)                                            \
  30             ? Perl_feature_is_enabled(aTHX_ STR_WITH_LEN(name)) : FALSE)
  31 /* The longest string we pass in.  */
  32 #define MAX_FEATURE_LEN (sizeof("postderef_qq")-1)
  33
  34 #define FEATURE_FC_IS_ENABLED \
  35     ( \
  36         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_515 && \
  37          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
  38      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  39          FEATURE_IS_ENABLED("fc")) \
  40     )
  41
  42 #define FEATURE_SAY_IS_ENABLED \
  43     ( \
  44         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
  45          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
  46      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  47          FEATURE_IS_ENABLED("say")) \
  48     )
  49
  50 #define FEATURE_STATE_IS_ENABLED \
  51     ( \
  52         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
  53          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
  54      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  55          FEATURE_IS_ENABLED("state")) \
  56     )
  57
  58 #define FEATURE_SWITCH_IS_ENABLED \
  59     ( \
  60         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
  61          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
  62      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  63          FEATURE_IS_ENABLED("switch")) \
  64     )
  65
  66 #define FEATURE_BITWISE_IS_ENABLED \
  67     ( \
  68         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_527 \
  69      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  70          FEATURE_IS_ENABLED("bitwise")) \
  71     )
  72
  73 #define FEATURE_EVALBYTES_IS_ENABLED \
  74     ( \
  75         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_515 && \
  76          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
  77      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  78          FEATURE_IS_ENABLED("evalbytes")) \
  79     )
  80
  81 #define FEATURE_ARYBASE_IS_ENABLED \
  82     ( \
  83         CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_511 \
  84      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  85          FEATURE_IS_ENABLED("arybase")) \
  86     )
  87
  88 #define FEATURE_SIGNATURES_IS_ENABLED \
  89     ( \
  90         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  91          FEATURE_IS_ENABLED("signatures") \
  92     )
  93
  94 #define FEATURE___SUB___IS_ENABLED \
  95     ( \
  96         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_515 && \
  97          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
  98      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  99          FEATURE_IS_ENABLED("__SUB__")) \
 100     )
 101
 102 #define FEATURE_REFALIASING_IS_ENABLED \
 103     ( \
 104         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 105          FEATURE_IS_ENABLED("refaliasing") \
 106     )
 107
 108 #define FEATURE_POSTDEREF_QQ_IS_ENABLED \
 109     ( \
 110         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_523 && \
 111          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
 112      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 113          FEATURE_IS_ENABLED("postderef_qq")) \
 114     )
 115
 116 #define FEATURE_UNIEVAL_IS_ENABLED \
 117     ( \
 118         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_515 && \
 119          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
 120      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 121          FEATURE_IS_ENABLED("unieval")) \
 122     )
 123
 124 #define FEATURE_MYREF_IS_ENABLED \
 125     ( \
 126         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 127          FEATURE_IS_ENABLED("myref") \
 128     )
 129
 130 #define FEATURE_UNICODE_IS_ENABLED \
 131     ( \
 132         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_511 && \
 133          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
 134      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 135          FEATURE_IS_ENABLED("unicode")) \
 136     )
 137
 138
 139 #endif /* PERL_CORE or PERL_EXT */
 140
 141 #ifdef PERL_IN_OP_C
 142 PERL_STATIC_INLINE void
 143 S_enable_feature_bundle(pTHX_ SV *ver)
 144 {
 145     SV *comp_ver = sv_newmortal();
 146     PL_hints = (PL_hints &~ HINT_FEATURE_MASK)
 147              | (
 148                   (sv_setnv(comp_ver, 5.027),
 149                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 150                         ? FEATURE_BUNDLE_527 :
 151                   (sv_setnv(comp_ver, 5.023),
 152                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 153                         ? FEATURE_BUNDLE_523 :
 154                   (sv_setnv(comp_ver, 5.015),
 155                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 156                         ? FEATURE_BUNDLE_515 :
 157                   (sv_setnv(comp_ver, 5.011),
 158                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 159                         ? FEATURE_BUNDLE_511 :
 160                   (sv_setnv(comp_ver, 5.009005),
 161                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 162                         ? FEATURE_BUNDLE_510 :
 163                           FEATURE_BUNDLE_DEFAULT
 164                ) << HINT_FEATURE_SHIFT;
 165     /* special case */
 166     assert(PL_curcop == &PL_compiling);
 167     if (FEATURE_UNICODE_IS_ENABLED) PL_hints |=  HINT_UNI_8_BIT;
 168     else                            PL_hints &= ~HINT_UNI_8_BIT;
 169 }
 170 #endif /* PERL_IN_OP_C */
 171
 172 /* ex: set ro: */