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 #define FEATURE_IS_ENABLED(name)                                        \
  24         ((CURRENT_HINTS                                                  \
  25            & HINT_LOCALIZE_HH)                                            \
  26             && Perl_feature_is_enabled(aTHX_ STR_WITH_LEN(name)))
  27 /* The longest string we pass in.  */
  28 #define MAX_FEATURE_LEN (sizeof("evalbytes")-1)
  29
  30 #define FEATURE_FC_IS_ENABLED \
  31     ( \
  32         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
  33      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  34          FEATURE_IS_ENABLED("fc")) \
  35     )
  36
  37 #define FEATURE_SAY_IS_ENABLED \
  38     ( \
  39         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
  40          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
  41      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  42          FEATURE_IS_ENABLED("say")) \
  43     )
  44
  45 #define FEATURE_STATE_IS_ENABLED \
  46     ( \
  47         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
  48          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
  49      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  50          FEATURE_IS_ENABLED("state")) \
  51     )
  52
  53 #define FEATURE_SWITCH_IS_ENABLED \
  54     ( \
  55         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
  56          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
  57      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  58          FEATURE_IS_ENABLED("switch")) \
  59     )
  60
  61 #define FEATURE_EVALBYTES_IS_ENABLED \
  62     ( \
  63         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
  64      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  65          FEATURE_IS_ENABLED("evalbytes")) \
  66     )
  67
  68 #define FEATURE_ARYBASE_IS_ENABLED \
  69     ( \
  70         CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_511 \
  71      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  72          FEATURE_IS_ENABLED("arybase")) \
  73     )
  74
  75 #define FEATURE___SUB___IS_ENABLED \
  76     ( \
  77         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
  78      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  79          FEATURE_IS_ENABLED("__SUB__")) \
  80     )
  81
  82 #define FEATURE_UNIEVAL_IS_ENABLED \
  83     ( \
  84         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
  85      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  86          FEATURE_IS_ENABLED("unieval")) \
  87     )
  88
  89 #define FEATURE_UNICODE_IS_ENABLED \
  90     ( \
  91         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_511 && \
  92          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
  93      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  94          FEATURE_IS_ENABLED("unicode")) \
  95     )
  96
  97
  98 #endif /* PERL_CORE or PERL_EXT */
  99
 100 #ifdef PERL_IN_OP_C
 101 PERL_STATIC_INLINE void
 102 S_enable_feature_bundle(pTHX_ SV *ver)
 103 {
 104     SV *comp_ver = sv_newmortal();
 105     PL_hints = (PL_hints &~ HINT_FEATURE_MASK)
 106              | (
 107                   (sv_setnv(comp_ver, 5.015),
 108                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 109                         ? FEATURE_BUNDLE_515 :
 110                   (sv_setnv(comp_ver, 5.011),
 111                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 112                         ? FEATURE_BUNDLE_511 :
 113                   (sv_setnv(comp_ver, 5.009005),
 114                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 115                         ? FEATURE_BUNDLE_510 :
 116                           FEATURE_BUNDLE_DEFAULT
 117                ) << HINT_FEATURE_SHIFT;
 118     /* special case */
 119     assert(PL_curcop == &PL_compiling);
 120     if (FEATURE_UNICODE_IS_ENABLED) PL_hints |=  HINT_UNI_8_BIT;
 121     else                            PL_hints &= ~HINT_UNI_8_BIT;
 122 }
 123 #endif /* PERL_IN_OP_C */
 124
 125 /* ex: set ro: */