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Comparing CBOR-XS/XS.xs (file contents):
Revision 1.10 by root, Sun Oct 27 20:40:25 2013 UTC vs.
Revision 1.11 by root, Sun Oct 27 22:35:15 2013 UTC

… …
61# define CBOR_SLOW 0 61# define CBOR_SLOW 0
62# define CBOR_STASH cbor_stash 62# define CBOR_STASH cbor_stash
63#endif 63#endif
64 64
65static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: 65static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS::
66static SV *types_true, *types_false, *types_error; 66static SV *types_true, *types_false, *types_error, *sv_cbor;
67 67
68typedef struct { 68typedef struct {
69 U32 flags; 69 U32 flags;
70 U32 max_depth; 70 U32 max_depth;
71 STRLEN max_size; 71 STRLEN max_size;
… …
269 : gv_stashpv ("Types::Serialiser::Error", 1); 269 : gv_stashpv ("Types::Serialiser::Error", 1);
270 HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash 270 HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
271 ? cbor_tagged_stash 271 ? cbor_tagged_stash
272 : gv_stashpv ("CBOR::XS::Tagged" , 1); 272 : gv_stashpv ("CBOR::XS::Tagged" , 1);
273 273
274 HV *stash = SvSTASH (sv);
275 GV *method;
276
274 if (SvSTASH (sv) == boolean_stash) 277 if (stash == boolean_stash)
275 encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20); 278 encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20);
276 else if (SvSTASH (sv) == error_stash) 279 else if (stash == error_stash)
277 encode_ch (enc, 0xe0 | 23); 280 encode_ch (enc, 0xe0 | 23);
278 else if (SvSTASH (sv) == tagged_stash) 281 else if (stash == tagged_stash)
279 { 282 {
280 if (svt != SVt_PVAV) 283 if (svt != SVt_PVAV)
281 croak ("encountered CBOR::XS::Tagged object that isn't an array"); 284 croak ("encountered CBOR::XS::Tagged object that isn't an array");
282 285
283 encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1))); 286 encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1)));
284 encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); 287 encode_sv (enc, *av_fetch ((AV *)sv, 1, 1));
285 } 288 }
289 else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))
290 {
291 dSP;
292
293 ENTER; SAVETMPS; PUSHMARK (SP);
294 // we re-bless the reference to get overload and other niceties right
295 XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
296
297 PUTBACK;
298 // G_SCALAR ensures that return value is 1
299 call_sv ((SV *)GvCV (method), G_SCALAR);
300 SPAGAIN;
301
302 // catch this surprisingly common error
303 if (SvROK (TOPs) && SvRV (TOPs) == sv)
304 croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (stash));
305
306 encode_sv (enc, POPs);
307
308 PUTBACK;
309
310 FREETMPS; LEAVE;
311 }
312 else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)
313 {
314 dSP;
315
316 ENTER; SAVETMPS; PUSHMARK (SP);
317 EXTEND (SP, 2);
318 // we re-bless the reference to get overload and other niceties right
319 PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
320 PUSHs (sv_cbor);
321
322 PUTBACK;
323 int count = call_sv ((SV *)GvCV (method), G_ARRAY);
324 SPAGAIN;
325
326 // catch this surprisingly common error
327 if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)
328 croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));
329
330 encode_uint (enc, 0xc0, CBOR_TAG_PERL_OBJECT);
331 encode_uint (enc, 0x80, count + 1);
332 encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));
333
334 while (count)
335 encode_sv (enc, SP[1 - count--]);
336
337 PUTBACK;
338
339 FREETMPS; LEAVE;
340 }
286 else 341 else
287 {
288 // we re-bless the reference to get overload and other niceties right
289 GV *to_cbor = gv_fetchmethod_autoload (SvSTASH (sv), "TO_CBOR", 0);
290
291 if (to_cbor)
292 {
293 dSP;
294
295 ENTER; SAVETMPS; PUSHMARK (SP);
296 XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
297
298 // calling with G_SCALAR ensures that we always get a 1 return value
299 PUTBACK;
300 call_sv ((SV *)GvCV (to_cbor), G_SCALAR);
301 SPAGAIN;
302
303 // catch this surprisingly common error
304 if (SvROK (TOPs) && SvRV (TOPs) == sv)
305 croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
306
307 sv = POPs;
308 PUTBACK;
309
310 encode_sv (enc, sv);
311
312 FREETMPS; LEAVE;
313 }
314 else
315 croak ("encountered object '%s', but no TO_CBOR method available on it", 342 croak ("encountered object '%s', but no TO_CBOR or FREEZE methods available on it",
316 SvPV_nolen (sv_2mortal (newRV_inc (sv)))); 343 SvPV_nolen (sv_2mortal (newRV_inc (sv))));
317 }
318 } 344 }
319 else if (svt == SVt_PVHV) 345 else if (svt == SVt_PVHV)
320 encode_hv (enc, (HV *)sv); 346 encode_hv (enc, (HV *)sv);
321 else if (svt == SVt_PVAV) 347 else if (svt == SVt_PVAV)
322 encode_av (enc, (AV *)sv); 348 encode_av (enc, (AV *)sv);
… …
648 UV tag = decode_uint (dec); 674 UV tag = decode_uint (dec);
649 SV *sv = decode_sv (dec); 675 SV *sv = decode_sv (dec);
650 676
651 if (tag == CBOR_TAG_MAGIC) 677 if (tag == CBOR_TAG_MAGIC)
652 return sv; 678 return sv;
653
654 if (tag == CBOR_TAG_PERL_OBJECT) 679 else if (tag == CBOR_TAG_PERL_OBJECT)
655 { 680 {
656 if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) 681 if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
657 ERR ("corrupted CBOR data (non-array perl object)"); 682 ERR ("corrupted CBOR data (non-array perl object)");
683
684 AV *av = (AV *)SvRV (sv);
685 int len = av_len (av) + 1;
686 HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0);
687
688 if (!stash)
689 ERR ("cannot decode perl-object (package does not exist)");
690
691 GV *method = gv_fetchmethod_autoload (stash, "THAW", 0);
658 692
659 // TODO 693 if (!method)
694 ERR ("cannot decode perl-object (package does not have a THAW method)");
695
696 dSP;
697
698 ENTER; SAVETMPS; PUSHMARK (SP);
699 EXTEND (SP, len + 1);
700 // we re-bless the reference to get overload and other niceties right
701 PUSHs (*av_fetch (av, 0, 1));
702 PUSHs (sv_cbor);
703
704 int i;
705
706 for (i = 1; i < len; ++i)
707 PUSHs (*av_fetch (av, i, 1));
708
709 PUTBACK;
710 call_sv ((SV *)GvCV (method), G_SCALAR);
711 SPAGAIN;
712
713 sv = SvREFCNT_inc (POPs);
714
715 PUTBACK;
716
717 FREETMPS; LEAVE;
718
719 return sv;
720 }
721 else
660 } 722 {
661
662 AV *av = newAV (); 723 AV *av = newAV ();
663 av_push (av, newSVuv (tag)); 724 av_push (av, newSVuv (tag));
664 av_push (av, sv); 725 av_push (av, sv);
665 726
666 HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash 727 HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
667 ? cbor_tagged_stash 728 ? cbor_tagged_stash
668 : gv_stashpv ("CBOR::XS::Tagged" , 1); 729 : gv_stashpv ("CBOR::XS::Tagged" , 1);
669 730
670 return sv_bless (newRV_noinc ((SV *)av), tagged_stash); 731 return sv_bless (newRV_noinc ((SV *)av), tagged_stash);
732 }
671 733
672fail: 734fail:
673 SvREFCNT_dec (sv); 735 SvREFCNT_dec (sv);
674 return &PL_sv_undef; 736 return &PL_sv_undef;
675} 737}
… …
846 types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); 908 types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1);
847 909
848 types_true = get_bool ("Types::Serialiser::true" ); 910 types_true = get_bool ("Types::Serialiser::true" );
849 types_false = get_bool ("Types::Serialiser::false"); 911 types_false = get_bool ("Types::Serialiser::false");
850 types_error = get_bool ("Types::Serialiser::error"); 912 types_error = get_bool ("Types::Serialiser::error");
913
914 sv_cbor = newSVpv ("CBOR", 0);
915 SvREADONLY_on (sv_cbor);
851} 916}
852 917
853PROTOTYPES: DISABLE 918PROTOTYPES: DISABLE
854 919
855void CLONE (...) 920void CLONE (...)

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