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_SIGNATURES_IS_ENABLED \
  82     ( \
  83         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  84          FEATURE_IS_ENABLED("signatures") \
  85     )
  86
  87 #define FEATURE___SUB___IS_ENABLED \
  88     ( \
  89         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_515 && \
  90          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
  91      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  92          FEATURE_IS_ENABLED("__SUB__")) \
  93     )
  94
  95 #define FEATURE_REFALIASING_IS_ENABLED \
  96     ( \
  97         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
  98          FEATURE_IS_ENABLED("refaliasing") \
  99     )
 100
 101 #define FEATURE_POSTDEREF_QQ_IS_ENABLED \
 102     ( \
 103         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_523 && \
 104          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
 105      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 106          FEATURE_IS_ENABLED("postderef_qq")) \
 107     )
 108
 109 #define FEATURE_UNIEVAL_IS_ENABLED \
 110     ( \
 111         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_515 && \
 112          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
 113      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 114          FEATURE_IS_ENABLED("unieval")) \
 115     )
 116
 117 #define FEATURE_MYREF_IS_ENABLED \
 118     ( \
 119         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 120          FEATURE_IS_ENABLED("myref") \
 121     )
 122
 123 #define FEATURE_UNICODE_IS_ENABLED \
 124     ( \
 125         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_511 && \
 126          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
 127      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
 128          FEATURE_IS_ENABLED("unicode")) \
 129     )
 130
 131
 132 #endif /* PERL_CORE or PERL_EXT */
 133
 134 #ifdef PERL_IN_OP_C
 135 PERL_STATIC_INLINE void
 136 S_enable_feature_bundle(pTHX_ SV *ver)
 137 {
 138     SV *comp_ver = sv_newmortal();
 139     PL_hints = (PL_hints &~ HINT_FEATURE_MASK)
 140              | (
 141                   (sv_setnv(comp_ver, 5.027),
 142                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 143                         ? FEATURE_BUNDLE_527 :
 144                   (sv_setnv(comp_ver, 5.023),
 145                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 146                         ? FEATURE_BUNDLE_523 :
 147                   (sv_setnv(comp_ver, 5.015),
 148                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 149                         ? FEATURE_BUNDLE_515 :
 150                   (sv_setnv(comp_ver, 5.011),
 151                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 152                         ? FEATURE_BUNDLE_511 :
 153                   (sv_setnv(comp_ver, 5.009005),
 154                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
 155                         ? FEATURE_BUNDLE_510 :
 156                           FEATURE_BUNDLE_DEFAULT
 157                ) << HINT_FEATURE_SHIFT;
 158     /* special case */
 159     assert(PL_curcop == &PL_compiling);
 160     if (FEATURE_UNICODE_IS_ENABLED) PL_hints |=  HINT_UNI_8_BIT;
 161     else                            PL_hints &= ~HINT_UNI_8_BIT;
 162 }
 163 #endif /* PERL_IN_OP_C */
 164
 165 /* ex: set ro: */