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