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("postderef_qq")-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_POSTDEREF_IS_ENABLED \
  71     ( \
  72         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  73          FEATURE_IS_ENABLED("postderef") \
  74     )
  75
  76 #define FEATURE_ARYBASE_IS_ENABLED \
  77     ( \
  78         CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_511 \
  79      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  80          FEATURE_IS_ENABLED("arybase")) \
  81     )
  82
  83 #define FEATURE_SIGNATURES_IS_ENABLED \
  84     ( \
  85         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  86          FEATURE_IS_ENABLED("signatures") \
  87     )
  88
  89 #define FEATURE___SUB___IS_ENABLED \
  90     ( \
  91         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
  92      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  93          FEATURE_IS_ENABLED("__SUB__")) \
  94     )
  95
  96 #define FEATURE_REFALIASING_IS_ENABLED \
  97     ( \
  98         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  99          FEATURE_IS_ENABLED("refaliasing") \
 100     )
 101
 102 #define FEATURE_LEXSUBS_IS_ENABLED \
 103     ( \
 104         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 105          FEATURE_IS_ENABLED("lexsubs") \
 106     )
 107
 108 #define FEATURE_POSTDEREF_QQ_IS_ENABLED \
 109     ( \
 110         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 111          FEATURE_IS_ENABLED("postderef_qq") \
 112     )
 113
 114 #define FEATURE_UNIEVAL_IS_ENABLED \
 115     ( \
 116         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
 117      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 118          FEATURE_IS_ENABLED("unieval")) \
 119     )
 120
 121 #define FEATURE_UNICODE_IS_ENABLED \
 122     ( \
 123         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_511 && \
 124          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
 125      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 126          FEATURE_IS_ENABLED("unicode")) \
 127     )
 128
 129
 130 #endif /* PERL_CORE or PERL_EXT */
 131
 132 #ifdef PERL_IN_OP_C
 133 PERL_STATIC_INLINE void
 134 S_enable_feature_bundle(pTHX_ SV *ver)
 135 {
 136     SV *comp_ver = sv_newmortal();
 137     PL_hints = (PL_hints &~ HINT_FEATURE_MASK)
 138              | (
 139                   (sv_setnv(comp_ver, 5.015),
 140                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 141                         ? FEATURE_BUNDLE_515 :
 142                   (sv_setnv(comp_ver, 5.011),
 143                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 144                         ? FEATURE_BUNDLE_511 :
 145                   (sv_setnv(comp_ver, 5.009005),
 146                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 147                         ? FEATURE_BUNDLE_510 :
 148                           FEATURE_BUNDLE_DEFAULT
 149                ) << HINT_FEATURE_SHIFT;
 150     /* special case */
 151     assert(PL_curcop == &PL_compiling);
 152     if (FEATURE_UNICODE_IS_ENABLED) PL_hints |=  HINT_UNI_8_BIT;
 153     else                            PL_hints &= ~HINT_UNI_8_BIT;
 154 }
 155 #endif /* PERL_IN_OP_C */
 156
 157 /* ex: set ro: */