--- CBOR-XS/XS.xs 2013/11/30 16:19:59 1.34 +++ CBOR-XS/XS.xs 2013/12/01 14:45:03 1.39 @@ -25,44 +25,83 @@ # define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) #endif +// known major and minor types +enum cbor_type +{ + MAJOR_SHIFT = 5, + MINOR_MASK = 0x1f, + + MAJOR_POS_INT = 0 << MAJOR_SHIFT, + MAJOR_NEG_INT = 1 << MAJOR_SHIFT, + MAJOR_BYTES = 2 << MAJOR_SHIFT, + MAJOR_TEXT = 3 << MAJOR_SHIFT, + MAJOR_ARRAY = 4 << MAJOR_SHIFT, + MAJOR_MAP = 5 << MAJOR_SHIFT, + MAJOR_TAG = 6 << MAJOR_SHIFT, + MAJOR_MISC = 7 << MAJOR_SHIFT, + + // INT/STRING/ARRAY/MAP subtypes + LENGTH_EXT1 = 24, + LENGTH_EXT2 = 25, + LENGTH_EXT4 = 26, + LENGTH_EXT8 = 27, + + // SIMPLE types (effectively MISC subtypes) + SIMPLE_FALSE = 20, + SIMPLE_TRUE = 21, + SIMPLE_NULL = 22, + SIMPLE_UNDEF = 23, + + // MISC subtype (unused) + MISC_EXT1 = 24, + MISC_FLOAT16 = 25, + MISC_FLOAT32 = 26, + MISC_FLOAT64 = 27, + + // BYTES/TEXT/ARRAY/MAP + MINOR_INDEF = 31, +}; + // known tags enum cbor_tag { - // extensions - CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref - CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object - CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object - CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing - CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing - CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref - CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection - - // rfc7049 - CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 - CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any - CBOR_TAG_POS_BIGNUM = 2, // byte string - CBOR_TAG_NEG_BIGNUM = 3, // byte string - CBOR_TAG_DECIMAL = 4, // decimal fraction, array - CBOR_TAG_BIGFLOAT = 5, // array - - CBOR_TAG_CONV_B64U = 21, // base64url, any - CBOR_TAG_CONV_B64 = 22, // base64, any - CBOR_TAG_CONV_HEX = 23, // base16, any - CBOR_TAG_CBOR = 24, // embedded cbor, byte string - - CBOR_TAG_URI = 32, // URI rfc3986, utf-8 - CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 - CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 - CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 - CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 + // extensions + CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref + CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object + CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object + CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing + CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing + CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref + CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection + + // rfc7049 + CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 + CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any + CBOR_TAG_POS_BIGNUM = 2, // byte string + CBOR_TAG_NEG_BIGNUM = 3, // byte string + CBOR_TAG_DECIMAL = 4, // decimal fraction, array + CBOR_TAG_BIGFLOAT = 5, // array + + CBOR_TAG_CONV_B64U = 21, // base64url, any + CBOR_TAG_CONV_B64 = 22, // base64, any + CBOR_TAG_CONV_HEX = 23, // base16, any + CBOR_TAG_CBOR = 24, // embedded cbor, byte string + + CBOR_TAG_URI = 32, // URI rfc3986, utf-8 + CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 + CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 + CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 + CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 - CBOR_TAG_MAGIC = 55799 // self-describe cbor + CBOR_TAG_MAGIC = 55799, // self-describe cbor }; #define F_SHRINK 0x00000001UL #define F_ALLOW_UNKNOWN 0x00000002UL #define F_ALLOW_SHARING 0x00000004UL -#define F_PACK_STRINGS 0x00000008UL +#define F_ALLOW_CYCLES 0x00000008UL +#define F_PACK_STRINGS 0x00000010UL +#define F_VALIDATE_UTF8 0x00000020UL #define INIT_SIZE 32 // initial scalar size to be allocated @@ -191,22 +230,22 @@ { need (enc, 9); - if (ecb_expect_true (len < 24)) + if (ecb_expect_true (len < LENGTH_EXT1)) *enc->cur++ = major | len; - else if (ecb_expect_true (len <= 0xff)) + else if (ecb_expect_true (len <= 0xffU)) { - *enc->cur++ = major | 24; + *enc->cur++ = major | LENGTH_EXT1; *enc->cur++ = len; } - else if (len <= 0xffff) + else if (len <= 0xffffU) { - *enc->cur++ = major | 25; + *enc->cur++ = major | LENGTH_EXT2; *enc->cur++ = len >> 8; *enc->cur++ = len; } - else if (len <= 0xffffffff) + else if (len <= 0xffffffffU) { - *enc->cur++ = major | 26; + *enc->cur++ = major | LENGTH_EXT4; *enc->cur++ = len >> 24; *enc->cur++ = len >> 16; *enc->cur++ = len >> 8; @@ -214,7 +253,7 @@ } else { - *enc->cur++ = major | 27; + *enc->cur++ = major | LENGTH_EXT8; *enc->cur++ = len >> 56; *enc->cur++ = len >> 48; *enc->cur++ = len >> 40; @@ -229,13 +268,13 @@ ecb_inline void encode_tag (enc_t *enc, UV tag) { - encode_uint (enc, 0xc0, tag); + encode_uint (enc, MAJOR_TAG, tag); } ecb_inline void encode_str (enc_t *enc, int utf8, char *str, STRLEN len) { - encode_uint (enc, utf8 ? 0x60 : 0x40, len); + encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); need (enc, len); memcpy (enc->cur, str, len); enc->cur += len; @@ -252,7 +291,7 @@ { // already registered, use stringref encode_tag (enc, CBOR_TAG_STRINGREF); - encode_uint (enc, 0x00, SvUV (*svp)); + encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); return; } else if (len >= minimum_string_length (enc->stringref_idx)) @@ -278,7 +317,7 @@ ++enc->depth; - encode_uint (enc, 0x80, len + 1); + encode_uint (enc, MAJOR_ARRAY, len + 1); for (i = 0; i <= len; ++i) { @@ -303,9 +342,9 @@ int mg = SvMAGICAL (hv); if (mg) - encode_ch (enc, 0xa0 | 31); + encode_ch (enc, MAJOR_MAP | MINOR_INDEF); else - encode_uint (enc, 0xa0, pairs); + encode_uint (enc, MAJOR_MAP, pairs); while ((he = hv_iternext (hv))) { @@ -318,7 +357,7 @@ } if (mg) - encode_ch (enc, 0xe0 | 31); + encode_ch (enc, MAJOR_MISC | MINOR_INDEF); --enc->depth; } @@ -347,12 +386,12 @@ if (stash == boolean_stash) { - encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20); + encode_ch (enc, SvIV (sv) ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE); return; } else if (stash == error_stash) { - encode_ch (enc, 0xe0 | 23); + encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); return; } else if (stash == tagged_stash) @@ -360,7 +399,7 @@ if (svt != SVt_PVAV) croak ("encountered CBOR::XS::Tagged object that isn't an array"); - encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1))); + encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); return; @@ -378,7 +417,7 @@ if (SvOK (*svp)) { encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); - encode_uint (enc, 0x00, SvUV (*svp)); + encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); return; } else @@ -436,7 +475,7 @@ croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); encode_tag (enc, CBOR_TAG_PERL_OBJECT); - encode_uint (enc, 0x80, count + 1); + encode_uint (enc, MAJOR_ARRAY, count + 1); encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); while (count) @@ -468,14 +507,14 @@ need (enc, 9); - if (ecb_expect_false (nv == (U32)nv)) - encode_uint (enc, 0x00, (U32)nv); + if (ecb_expect_false (nv == (NV)(U32)nv)) + encode_uint (enc, MAJOR_POS_INT, (U32)nv); //TODO: maybe I32? else if (ecb_expect_false (nv == (float)nv)) { uint32_t fp = ecb_float_to_binary32 (nv); - *enc->cur++ = 0xe0 | 26; + *enc->cur++ = MAJOR_MISC | MISC_FLOAT32; if (!ecb_big_endian ()) fp = ecb_bswap32 (fp); @@ -487,7 +526,7 @@ { uint64_t fp = ecb_double_to_binary64 (nv); - *enc->cur++ = 0xe0 | 27; + *enc->cur++ = MAJOR_MISC | MISC_FLOAT64; if (!ecb_big_endian ()) fp = ecb_bswap64 (fp); @@ -513,18 +552,18 @@ else if (SvIOKp (sv)) { if (SvIsUV (sv)) - encode_uint (enc, 0x00, SvUVX (sv)); + encode_uint (enc, MAJOR_POS_INT, SvUVX (sv)); else if (SvIVX (sv) >= 0) - encode_uint (enc, 0x00, SvIVX (sv)); + encode_uint (enc, MAJOR_POS_INT, SvIVX (sv)); else - encode_uint (enc, 0x20, -(SvIVX (sv) + 1)); + encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1)); } else if (SvROK (sv)) encode_rv (enc, SvRV (sv)); else if (!SvOK (sv)) - encode_ch (enc, 0xe0 | 22); + encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); else if (enc->cbor.flags & F_ALLOW_UNKNOWN) - encode_ch (enc, 0xe0 | 23); + encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); else croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); @@ -587,53 +626,54 @@ static UV decode_uint (dec_t *dec) { - switch (*dec->cur & 31) + U8 m = *dec->cur & MINOR_MASK; + ++dec->cur; + + if (ecb_expect_true (m < LENGTH_EXT1)) + return m; + else if (ecb_expect_true (m == LENGTH_EXT1)) + { + WANT (1); + dec->cur += 1; + return dec->cur[-1]; + } + else if (ecb_expect_true (m == LENGTH_EXT2)) { - case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: - case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15: - case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23: - return *dec->cur++ & 31; - - case 24: - WANT (2); - dec->cur += 2; - return dec->cur[-1]; - - case 25: - WANT (3); - dec->cur += 3; - return (((UV)dec->cur[-2]) << 8) - | ((UV)dec->cur[-1]); - - case 26: - WANT (5); - dec->cur += 5; - return (((UV)dec->cur[-4]) << 24) - | (((UV)dec->cur[-3]) << 16) - | (((UV)dec->cur[-2]) << 8) - | ((UV)dec->cur[-1]); - - case 27: - WANT (9); - dec->cur += 9; + WANT (2); + dec->cur += 2; + return (((UV)dec->cur[-2]) << 8) + | ((UV)dec->cur[-1]); + } + else if (ecb_expect_true (m == LENGTH_EXT4)) + { + WANT (4); + dec->cur += 4; + return (((UV)dec->cur[-4]) << 24) + | (((UV)dec->cur[-3]) << 16) + | (((UV)dec->cur[-2]) << 8) + | ((UV)dec->cur[-1]); + } + else if (ecb_expect_true (m == LENGTH_EXT8)) + { + WANT (8); + dec->cur += 8; - return + return #if UVSIZE < 8 - 0 + 0 #else - (((UV)dec->cur[-8]) << 56) - | (((UV)dec->cur[-7]) << 48) - | (((UV)dec->cur[-6]) << 40) - | (((UV)dec->cur[-5]) << 32) + (((UV)dec->cur[-8]) << 56) + | (((UV)dec->cur[-7]) << 48) + | (((UV)dec->cur[-6]) << 40) + | (((UV)dec->cur[-5]) << 32) #endif - | (((UV)dec->cur[-4]) << 24) - | (((UV)dec->cur[-3]) << 16) - | (((UV)dec->cur[-2]) << 8) - | ((UV)dec->cur[-1]); - - default: - ERR ("corrupted CBOR data (unsupported integer minor encoding)"); + | (((UV)dec->cur[-4]) << 24) + | (((UV)dec->cur[-3]) << 16) + | (((UV)dec->cur[-2]) << 8) + | ((UV)dec->cur[-1]); } + else + ERR ("corrupted CBOR data (unsupported integer minor encoding)"); fail: return 0; @@ -648,7 +688,7 @@ DEC_INC_DEPTH; - if ((*dec->cur & 31) == 31) + if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF)) { ++dec->cur; @@ -656,7 +696,7 @@ { WANT (1); - if (*dec->cur == (0xe0 | 31)) + if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) { ++dec->cur; break; @@ -669,6 +709,7 @@ { int i, len = decode_uint (dec); + WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays av_fill (av, len - 1); for (i = 0; i < len; ++i) @@ -691,29 +732,27 @@ // byte or utf-8 strings as keys, but only when !stringref if (ecb_expect_true (!dec->stringref)) - if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27) + if (ecb_expect_true ((*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) { I32 len = decode_uint (dec); char *key = (char *)dec->cur; dec->cur += len; - if (ecb_expect_false (dec->stringref)) - av_push (dec->stringref, newSVpvn (key, len)); - hv_store (hv, key, len, decode_sv (dec), 0); return; } - else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27) + else if (ecb_expect_true ((*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) { I32 len = decode_uint (dec); char *key = (char *)dec->cur; dec->cur += len; - if (ecb_expect_false (dec->stringref)) - av_push (dec->stringref, newSVpvn_utf8 (key, len, 1)); + if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) + if (!is_utf8_string (key, len)) + ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); hv_store (hv, key, -len, decode_sv (dec), 0); @@ -725,6 +764,9 @@ hv_store_ent (hv, k, v, 0); SvREFCNT_dec (k); + +fail: + ; } static SV * @@ -734,7 +776,7 @@ DEC_INC_DEPTH; - if ((*dec->cur & 31) == 31) + if (*dec->cur == (MAJOR_MAP | MINOR_INDEF)) { ++dec->cur; @@ -742,7 +784,7 @@ { WANT (1); - if (*dec->cur == (0xe0 | 31)) + if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) { ++dec->cur; break; @@ -773,12 +815,12 @@ { SV *sv = 0; - if ((*dec->cur & 31) == 31) + if ((*dec->cur & MINOR_MASK) == MINOR_INDEF) { // indefinite length strings ++dec->cur; - unsigned char major = *dec->cur & 0xe0; + U8 major = *dec->cur & MAJOR_MISC; sv = newSVpvn ("", 0); @@ -786,8 +828,8 @@ { WANT (1); - if ((*dec->cur ^ major) >= 31) - if (*dec->cur == (0xe0 | 31)) + if ((*dec->cur - major) > LENGTH_EXT8) + if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) { ++dec->cur; break; @@ -816,7 +858,13 @@ } if (utf8) - SvUTF8_on (sv); + { + if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) + if (!is_utf8_string (SvPVX (sv), SvCUR (sv))) + ERR ("corrupted CBOR data (invalid UTF-8 in text string)"); + + SvUTF8_on (sv); + } return sv; @@ -858,7 +906,7 @@ case CBOR_TAG_STRINGREF: { - if ((*dec->cur >> 5) != 0) + if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); UV idx = decode_uint (dec); @@ -875,18 +923,28 @@ if (ecb_expect_false (!dec->shareable)) dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); - sv = newSV (0); - av_push (dec->shareable, SvREFCNT_inc_NN (sv)); + if (dec->cbor.flags & F_ALLOW_CYCLES) + { + sv = newSV (0); + av_push (dec->shareable, SvREFCNT_inc_NN (sv)); - SV *osv = decode_sv (dec); - sv_setsv (sv, osv); - SvREFCNT_dec_NN (osv); + SV *osv = decode_sv (dec); + sv_setsv (sv, osv); + SvREFCNT_dec_NN (osv); + } + else + { + av_push (dec->shareable, &PL_sv_undef); + int idx = AvFILLp (dec->shareable); + sv = decode_sv (dec); + av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv)); + } } break; case CBOR_TAG_VALUE_SHAREDREF: { - if ((*dec->cur >> 5) != 0) + if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); UV idx = decode_uint (dec); @@ -895,6 +953,9 @@ ERR ("corrupted CBOR data (sharedref index out of bounds)"); sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); + + if (sv == &PL_sv_undef) + ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled"); } break; @@ -1005,44 +1066,38 @@ { WANT (1); - switch (*dec->cur >> 5) + switch (*dec->cur >> MAJOR_SHIFT) { - case 0: // unsigned int - return newSVuv (decode_uint (dec)); - case 1: // negative int - return newSViv (-1 - (IV)decode_uint (dec)); - case 2: // octet string - return decode_str (dec, 0); - case 3: // utf-8 string - return decode_str (dec, 1); - case 4: // array - return decode_av (dec); - case 5: // map - return decode_hv (dec); - case 6: // tag - return decode_tagged (dec); - case 7: // misc - switch (*dec->cur++ & 31) + case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec)); + case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec)); + case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0); + case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1); + case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec); + case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec); + case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec); + + case MAJOR_MISC >> MAJOR_SHIFT: + switch (*dec->cur++ & MINOR_MASK) { - case 20: + case SIMPLE_FALSE: #if CBOR_SLOW types_false = get_bool ("Types::Serialiser::false"); #endif return newSVsv (types_false); - case 21: + case SIMPLE_TRUE: #if CBOR_SLOW types_true = get_bool ("Types::Serialiser::true"); #endif return newSVsv (types_true); - case 22: + case SIMPLE_NULL: return newSVsv (&PL_sv_undef); - case 23: + case SIMPLE_UNDEF: #if CBOR_SLOW types_error = get_bool ("Types::Serialiser::error"); #endif return newSVsv (types_error); - case 25: + case MISC_FLOAT16: { WANT (2); @@ -1052,7 +1107,7 @@ return newSVnv (ecb_binary16_to_float (fp)); } - case 26: + case MISC_FLOAT32: { uint32_t fp; WANT (4); @@ -1065,7 +1120,7 @@ return newSVnv (ecb_binary32_to_float (fp)); } - case 27: + case MISC_FLOAT64: { uint64_t fp; WANT (8); @@ -1078,7 +1133,7 @@ return newSVnv (ecb_binary64_to_double (fp)); } - // 0..19 unassigned + // 0..19 unassigned simple // 24 reserved + unassigned (reserved values are not encodable) default: ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); @@ -1118,6 +1173,17 @@ if (dec.err) { + if (dec.shareable) + { + // need to break cyclic links, which whould all be in shareable + int i; + SV **svp; + + for (i = av_len (dec.shareable) + 1; i--; ) + if ((svp = av_fetch (dec.shareable, i, 0))) + sv_setsv (*svp, &PL_sv_undef); + } + SvREFCNT_dec (sv); croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); } @@ -1176,7 +1242,9 @@ shrink = F_SHRINK allow_unknown = F_ALLOW_UNKNOWN allow_sharing = F_ALLOW_SHARING + allow_cycles = F_ALLOW_CYCLES pack_strings = F_PACK_STRINGS + validate_utf8 = F_VALIDATE_UTF8 PPCODE: { if (enable) @@ -1192,7 +1260,9 @@ get_shrink = F_SHRINK get_allow_unknown = F_ALLOW_UNKNOWN get_allow_sharing = F_ALLOW_SHARING + get_allow_cycles = F_ALLOW_CYCLES get_pack_strings = F_PACK_STRINGS + get_validate_utf8 = F_VALIDATE_UTF8 PPCODE: XPUSHs (boolSV (self->flags & ix)); @@ -1258,10 +1328,14 @@ PROTOTYPES: ENABLE void encode_cbor (SV *scalar) + ALIAS: + encode_cbor = 0 + encode_cbor_sharing = F_ALLOW_SHARING PPCODE: { CBOR cbor; cbor_init (&cbor); + cbor.flags |= ix; PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; XPUSHs (scalar); }