ext/B/defsubs_h.PL

   1 # Do not remove the following line; MakeMaker relies on it to identify
   2 # this file as a template for defsubs.h
   3 # Extracting defsubs.h (with variable substitutions)
   4 #!perl
   5 my ($out) = __FILE__ =~ /(^.*)\.PL/i;
   6 $out =~ s/_h$/.h/;
   7 open(OUT,">$out") || die "Cannot open $file:$!";
   8 print "Extracting $out...\n";
   9 foreach my $const (qw(
  10                       AVf_REAL
  11                       HEf_SVKEY
  12                       SVf_READONLY SVTYPEMASK
  13                       GVf_IMPORTED_AV GVf_IMPORTED_HV
  14                       GVf_IMPORTED_SV GVf_IMPORTED_CV
  15                       CVf_METHOD CVf_LOCKED CVf_LVALUE
  16                       SVf_IOK SVf_IVisUV SVf_NOK SVf_POK
  17                       SVf_ROK SVp_IOK SVp_POK SVp_NOK
  18                       ))
  19  {
  20   doconst($const);
  21  }
  22 foreach my $file (qw(op.h cop.h))
  23  {
  24   open(OPH,"../../$file") || die "Cannot open ../../$file:$!";
  25   while (<OPH>)
  26    {
  27     doconst($1) if (/#define\s+(\w+)\s+([\(\)\|\dx]+)\s*(?:$|\/\*)/);
  28    }
  29   close(OPH);
  30  }
  31 close(OUT);
  32
  33 sub doconst
  34 {
  35  my $sym = shift;
  36  my $l = length($sym);
  37  print OUT <<"END";
  38  newCONSTSUB(stash,"$sym",newSViv($sym));
  39  av_push(export_ok,newSVpvn("$sym",$l));
  40 END
  41 }