[ViewVC] Diff of: cvs/JSON-XS/XS.xs

Comparing JSON-XS/XS.xs (file contents):
Revision 1.113 by root, Thu Aug 11 21:37:41 2011 UTC vs.
Revision 1.137 by root, Sun Feb 24 04:21:05 2019 UTC

…		…
6	#include <string.h>	6	#include <string.h>
7	#include <stdlib.h>	7	#include <stdlib.h>
8	#include <stdio.h>	8	#include <stdio.h>
9	#include <limits.h>	9	#include <limits.h>
10	#include <float.h>	10	#include <float.h>
		11	#include <inttypes.h>
11		12
12	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	13	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
13	# define snprintf _snprintf // C compilers have this in stdio.h	14	# define snprintf _snprintf // C compilers have this in stdio.h
14	#endif	15	#endif
15		16
16	// some old perls do not have this, try to make it work, no	17	// some old perls do not have this, try to make it work, no
17	// guarantees, though. if it breaks, you get to keep the pieces.	18	// guarantees, though. if it breaks, you get to keep the pieces.
18	#ifndef UTF8_MAXBYTES	19	#ifndef UTF8_MAXBYTES
19	# define UTF8_MAXBYTES 13	20	# define UTF8_MAXBYTES 13
		21	#endif
		22
		23	// compatibility with perl <5.18
		24	#ifndef HvNAMELEN_get
		25	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))
		26	#endif
		27	#ifndef HvNAMELEN
		28	# define HvNAMELEN(hv) HvNAMELEN_get (hv)
		29	#endif
		30	#ifndef HvNAMEUTF8
		31	# define HvNAMEUTF8(hv) 0
20	#endif	32	#endif
21		33
22	// three extra for rounding, sign, and end of string	34	// three extra for rounding, sign, and end of string
23	#define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 3)	35	#define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 3)
24		36
…		…
33	#define F_SHRINK 0x00000200UL	45	#define F_SHRINK 0x00000200UL
34	#define F_ALLOW_BLESSED 0x00000400UL	46	#define F_ALLOW_BLESSED 0x00000400UL
35	#define F_CONV_BLESSED 0x00000800UL	47	#define F_CONV_BLESSED 0x00000800UL
36	#define F_RELAXED 0x00001000UL	48	#define F_RELAXED 0x00001000UL
37	#define F_ALLOW_UNKNOWN 0x00002000UL	49	#define F_ALLOW_UNKNOWN 0x00002000UL
		50	#define F_ALLOW_TAGS 0x00004000UL
38	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing	51	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing
39		52
40	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER	53	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
41		54
42	#define INIT_SIZE 32 // initial scalar size to be allocated	55	#define INIT_SIZE 64 // initial scalar size to be allocated
43	#define INDENT_STEP 3 // spaces per indentation level	56	#define INDENT_STEP 3 // spaces per indentation level
44		57
45	#define SHORT_STRING_LEN 16384 // special-case strings of up to this size	58	#define SHORT_STRING_LEN 16384 // special-case strings of up to this size
46		59
47	#define DECODE_WANTS_OCTETS(json) ((json)->flags & F_UTF8)	60	#define DECODE_WANTS_OCTETS(json) ((json)->flags & F_UTF8)
…		…
65	<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))	78	<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))
66		79
67	#define ERR_NESTING_EXCEEDED "json text or perl structure exceeds maximum nesting level (max_depth set too low?)"	80	#define ERR_NESTING_EXCEEDED "json text or perl structure exceeds maximum nesting level (max_depth set too low?)"
68		81
69	#ifdef USE_ITHREADS	82	#ifdef USE_ITHREADS
70	# define JSON_SLOW 1
71	# define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1))	83	# define JSON_STASH (expect_true (json_stash) ? json_stash : gv_stashpv ("JSON::XS", 1))
		84	# define BOOL_STASH (expect_true (bool_stash) ? bool_stash : gv_stashpv ("Types::Serialiser::Boolean", 1))
		85	# define GET_BOOL(value) (expect_true (bool_ ## value) ? bool_ ## value : get_bool ("Types::Serialiser::" # value))
72	#else	86	#else
73	# define JSON_SLOW 0
74	# define JSON_STASH json_stash	87	# define JSON_STASH json_stash
		88	# define BOOL_STASH bool_stash
		89	# define GET_BOOL(value) bool_ ## value
75	#endif	90	#endif
76		91
77	static HV json_stash, json_boolean_stash; // JSON::XS::	92	// the amount of HEs to allocate on the stack, when sorting keys
78	static SV json_true, json_false;	93	#define STACK_HES 64
		94
		95	static HV json_stash, bool_stash; // JSON::XS::, Types::Serialiser::Boolean::
		96	static SV bool_false, bool_true;
		97	static SV *sv_json;
79		98
80	enum {	99	enum {
81	INCR_M_WS = 0, // initial whitespace skipping, must be 0	100	INCR_M_WS = 0, // initial whitespace skipping, must be 0
		101	INCR_M_TFN, // inside true/false/null
		102	INCR_M_NUM, // inside number
82	INCR_M_STR, // inside string	103	INCR_M_STR, // inside string
83	INCR_M_BS, // inside backslash	104	INCR_M_BS, // inside backslash
84	INCR_M_C0, // inside comment in initial whitespace sequence	105	INCR_M_C0, // inside comment in initial whitespace sequence
85	INCR_M_C1, // inside comment in other places	106	INCR_M_C1, // inside comment in other places
86	INCR_M_JSON // outside anything, count nesting	107	INCR_M_JSON // outside anything, count nesting
…		…
99	// for the incremental parser	120	// for the incremental parser
100	SV *incr_text; // the source text so far	121	SV *incr_text; // the source text so far
101	STRLEN incr_pos; // the current offset into the text	122	STRLEN incr_pos; // the current offset into the text
102	int incr_nest; // {[]}-nesting level	123	int incr_nest; // {[]}-nesting level
103	unsigned char incr_mode;	124	unsigned char incr_mode;
		125
		126	SV v_false, v_true;
104	} JSON;	127	} JSON;
105		128
106	INLINE void	129	INLINE void
107	json_init (JSON *json)	130	json_init (JSON *json)
108	{	131	{
109	Zero (json, 1, JSON);	132	static const JSON init = { F_ALLOW_NONREF, 512 };
110	json->max_depth = 512;	133
		134	*json = init;
111	}	135	}
112		136
113	/////////////////////////////////////////////////////////////////////////////	137	/////////////////////////////////////////////////////////////////////////////
114	// utility functions	138	// utility functions
115		139
…		…
137	SvPV_renew (sv, SvCUR (sv) + 1);	161	SvPV_renew (sv, SvCUR (sv) + 1);
138	#endif	162	#endif
139	}	163	}
140	}	164	}
141		165
		166	/* adds two STRLENs together, slow, and with paranoia */
		167	STRLEN
		168	strlen_sum (STRLEN l1, STRLEN l2)
		169	{
		170	size_t sum = l1 + l2;
		171
		172	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)
		173	croak ("JSON::XS: string size overflow");
		174
		175	return sum;
		176	}
		177
		178	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */
		179	static char *
		180	json_sv_grow (SV *sv, size_t len1, size_t len2)
		181	{
		182	len1 = strlen_sum (len1, len2);
		183	len1 = strlen_sum (len1, len1 >> 1);
		184
		185	if (len1 > 4096 - 24)
		186	len1 = (len1 \| 4095) - 24;
		187
		188	return SvGROW (sv, len1);
		189	}
		190
142	// decode an utf-8 character and return it, or (UV)-1 in	191	// decode a utf-8 character and return it, or (UV)-1 in
143	// case of an error.	192	// case of an error.
144	// we special-case "safe" characters from U+80 .. U+7FF,	193	// we special-case "safe" characters from U+80 .. U+7FF,
145	// but use the very good perl function to parse anything else.	194	// but use the very good perl function to parse anything else.
146	// note that we never call this function for a ascii codepoints	195	// note that we never call this function for a ascii codepoints
147	INLINE UV	196	INLINE UV
…		…
284	// a recursion depth of ten gives us >>500 bits	333	// a recursion depth of ten gives us >>500 bits
285	json_atof_scan1 (s, &accum, &expo, 0, 10);	334	json_atof_scan1 (s, &accum, &expo, 0, 10);
286		335
287	return neg ? -accum : accum;	336	return neg ? -accum : accum;
288	}	337	}
		338
		339	// target of scalar reference is bool? -1 == nope, 0 == false, 1 == true
		340	static int
		341	ref_bool_type (SV *sv)
		342	{
		343	svtype svt = SvTYPE (sv);
		344
		345	if (svt < SVt_PVAV)
		346	{
		347	STRLEN len = 0;
		348	char *pv = svt ? SvPV (sv, len) : 0;
		349
		350	if (len == 1)
		351	if (*pv == '1')
		352	return 1;
		353	else if (*pv == '0')
		354	return 0;
		355	}
		356
		357	return -1;
		358	}
		359
		360	// returns whether scalar is not a reference in the sense of allow_nonref
		361	static int
		362	json_nonref (SV *scalar)
		363	{
		364	if (!SvROK (scalar))
		365	return 1;
		366
		367	scalar = SvRV (scalar);
		368
		369	if (SvTYPE (scalar) >= SVt_PVMG)
		370	{
		371	if (SvSTASH (scalar) == bool_stash)
		372	return 1;
		373
		374	if (!SvOBJECT (scalar) && ref_bool_type (scalar) >= 0)
		375	return 1;
		376	}
		377
		378	return 0;
		379	}
		380
289	/////////////////////////////////////////////////////////////////////////////	381	/////////////////////////////////////////////////////////////////////////////
290	// encoder	382	// encoder
291		383
292	// structure used for encoding JSON	384	// structure used for encoding JSON
293	typedef struct	385	typedef struct
…		…
301	} enc_t;	393	} enc_t;
302		394
303	INLINE void	395	INLINE void
304	need (enc_t *enc, STRLEN len)	396	need (enc_t *enc, STRLEN len)
305	{	397	{
306	if (expect_false (enc->cur + len >= enc->end))	398	if (expect_false ((uintptr_t)(enc->end - enc->cur) < len))
307	{	399	{
308	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);	400	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
309	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);	401	char *buf = json_sv_grow (enc->sv, cur, len);
310	enc->cur = SvPVX (enc->sv) + cur;	402	enc->cur = buf + cur;
311	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	403	enc->end = buf + SvLEN (enc->sv) - 1;
312	}	404	}
313	}	405	}
314		406
315	INLINE void	407	INLINE void
316	encode_ch (enc_t *enc, char ch)	408	encode_ch (enc_t *enc, char ch)
…		…
332		424
333	if (expect_true (ch >= 0x20 && ch < 0x80)) // most common case	425	if (expect_true (ch >= 0x20 && ch < 0x80)) // most common case
334	{	426	{
335	if (expect_false (ch == '"')) // but with slow exceptions	427	if (expect_false (ch == '"')) // but with slow exceptions
336	{	428	{
337	need (enc, len += 1);	429	need (enc, len + 1);
338	*enc->cur++ = '\\';	430	*enc->cur++ = '\\';
339	*enc->cur++ = '"';	431	*enc->cur++ = '"';
340	}	432	}
341	else if (expect_false (ch == '\\'))	433	else if (expect_false (ch == '\\'))
342	{	434	{
343	need (enc, len += 1);	435	need (enc, len + 1);
344	*enc->cur++ = '\\';	436	*enc->cur++ = '\\';
345	*enc->cur++ = '\\';	437	*enc->cur++ = '\\';
346	}	438	}
347	else	439	else
348	*enc->cur++ = ch;	440	*enc->cur++ = ch;
…		…
351	}	443	}
352	else	444	else
353	{	445	{
354	switch (ch)	446	switch (ch)
355	{	447	{
356	case '\010': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'b'; ++str; break;	448	case '\010': need (enc, len + 1); enc->cur++ = '\\'; enc->cur++ = 'b'; ++str; break;
357	case '\011': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 't'; ++str; break;	449	case '\011': need (enc, len + 1); enc->cur++ = '\\'; enc->cur++ = 't'; ++str; break;
358	case '\012': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'n'; ++str; break;	450	case '\012': need (enc, len + 1); enc->cur++ = '\\'; enc->cur++ = 'n'; ++str; break;
359	case '\014': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'f'; ++str; break;	451	case '\014': need (enc, len + 1); enc->cur++ = '\\'; enc->cur++ = 'f'; ++str; break;
360	case '\015': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'r'; ++str; break;	452	case '\015': need (enc, len + 1); enc->cur++ = '\\'; enc->cur++ = 'r'; ++str; break;
361		453
362	default:	454	default:
363	{	455	{
364	STRLEN clen;	456	STRLEN clen;
365	UV uch;	457	UV uch;
…		…
381	if (uch >= 0x10000UL)	473	if (uch >= 0x10000UL)
382	{	474	{
383	if (uch >= 0x110000UL)	475	if (uch >= 0x110000UL)
384	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);	476	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
385		477
386	need (enc, len += 11);	478	need (enc, len + 11);
387	sprintf (enc->cur, "\\u%04x\\u%04x",	479	sprintf (enc->cur, "\\u%04x\\u%04x",
388	(int)((uch - 0x10000) / 0x400 + 0xD800),	480	(int)((uch - 0x10000) / 0x400 + 0xD800),
389	(int)((uch - 0x10000) % 0x400 + 0xDC00));	481	(int)((uch - 0x10000) % 0x400 + 0xDC00));
390	enc->cur += 12;	482	enc->cur += 12;
391	}	483	}
392	else	484	else
393	{	485	{
394	need (enc, len += 5);	486	need (enc, len + 5);
395	*enc->cur++ = '\\';	487	*enc->cur++ = '\\';
396	*enc->cur++ = 'u';	488	*enc->cur++ = 'u';
397	*enc->cur++ = PL_hexdigit [ uch >> 12 ];	489	*enc->cur++ = PL_hexdigit [ uch >> 12 ];
398	*enc->cur++ = PL_hexdigit [(uch >> 8) & 15];	490	*enc->cur++ = PL_hexdigit [(uch >> 8) & 15];
399	*enc->cur++ = PL_hexdigit [(uch >> 4) & 15];	491	*enc->cur++ = PL_hexdigit [(uch >> 4) & 15];
…		…
407	*enc->cur++ = uch;	499	*enc->cur++ = uch;
408	str += clen;	500	str += clen;
409	}	501	}
410	else if (is_utf8)	502	else if (is_utf8)
411	{	503	{
412	need (enc, len += clen);	504	need (enc, len + clen);
413	do	505	do
414	{	506	{
415	enc->cur++ = str++;	507	enc->cur++ = str++;
416	}	508	}
417	while (--clen);	509	while (--clen);
418	}	510	}
419	else	511	else
420	{	512	{
421	need (enc, len += UTF8_MAXBYTES - 1); // never more than 11 bytes needed	513	need (enc, len + UTF8_MAXBYTES - 1); // never more than 11 bytes needed
422	enc->cur = encode_utf8 (enc->cur, uch);	514	enc->cur = encode_utf8 (enc->cur, uch);
423	++str;	515	++str;
424	}	516	}
425	}	517	}
426	}	518	}
…		…
480		572
481	if (enc->indent >= enc->json.max_depth)	573	if (enc->indent >= enc->json.max_depth)
482	croak (ERR_NESTING_EXCEEDED);	574	croak (ERR_NESTING_EXCEEDED);
483		575
484	encode_ch (enc, '[');	576	encode_ch (enc, '[');
485		577
486	if (len >= 0)	578	if (len >= 0)
487	{	579	{
488	encode_nl (enc); ++enc->indent;	580	encode_nl (enc); ++enc->indent;
489		581
490	for (i = 0; i <= len; ++i)	582	for (i = 0; i <= len; ++i)
…		…
502	encode_comma (enc);	594	encode_comma (enc);
503	}	595	}
504		596
505	encode_nl (enc); --enc->indent; encode_indent (enc);	597	encode_nl (enc); --enc->indent; encode_indent (enc);
506	}	598	}
507		599
508	encode_ch (enc, ']');	600	encode_ch (enc, ']');
509	}	601	}
510		602
511	static void	603	static void
512	encode_hk (enc_t enc, HE he)	604	encode_hk (enc_t enc, HE he)
…		…
516	if (HeKLEN (he) == HEf_SVKEY)	608	if (HeKLEN (he) == HEf_SVKEY)
517	{	609	{
518	SV *sv = HeSVKEY (he);	610	SV *sv = HeSVKEY (he);
519	STRLEN len;	611	STRLEN len;
520	char *str;	612	char *str;
521		613
522	SvGETMAGIC (sv);	614	SvGETMAGIC (sv);
523	str = SvPV (sv, len);	615	str = SvPV (sv, len);
524		616
525	encode_str (enc, str, len, SvUTF8 (sv));	617	encode_str (enc, str, len, SvUTF8 (sv));
526	}	618	}
…		…
592	}	684	}
593		685
594	if (count)	686	if (count)
595	{	687	{
596	int i, fast = 1;	688	int i, fast = 1;
597	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	689	HE *hes_stack [STACK_HES];
598	HE *hes = _alloca (count sizeof (HE));	690	HE **hes = hes_stack;
599	#else	691
600	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode	692	// allocate larger arrays on the heap
601	#endif	693	if (count > STACK_HES)
		694	{
		695	SV sv = sv_2mortal (NEWSV (0, count sizeof (*hes)));
		696	hes = (HE **)SvPVX (sv);
		697	}
602		698
603	i = 0;	699	i = 0;
604	while ((he = hv_iternext (hv)))	700	while ((he = hv_iternext (hv)))
605	{	701	{
606	hes [i++] = he;	702	hes [i++] = he;
…		…
675	// encode objects, arrays and special \0=false and \1=true values.	771	// encode objects, arrays and special \0=false and \1=true values.
676	static void	772	static void
677	encode_rv (enc_t enc, SV sv)	773	encode_rv (enc_t enc, SV sv)
678	{	774	{
679	svtype svt;	775	svtype svt;
		776	GV *method;
680		777
681	SvGETMAGIC (sv);	778	SvGETMAGIC (sv);
682	svt = SvTYPE (sv);	779	svt = SvTYPE (sv);
683		780
684	if (expect_false (SvOBJECT (sv)))	781	if (expect_false (SvOBJECT (sv)))
685	{	782	{
686	HV *stash = !JSON_SLOW \|\| json_boolean_stash	783	HV *stash = SvSTASH (sv);
687	? json_boolean_stash
688	: gv_stashpv ("JSON::XS::Boolean", 1);
689		784
690	if (SvSTASH (sv) == stash)	785	if (stash == bool_stash)
691	{	786	{
692	if (SvIV (sv))
693	encode_str (enc, "true", 4, 0);	787	if (SvIV (sv)) encode_str (enc, "true" , 4, 0);
694	else
695	encode_str (enc, "false", 5, 0);	788	else encode_str (enc, "false", 5, 0);
696	}	789	}
		790	else if ((enc->json.flags & F_ALLOW_TAGS) && (method = gv_fetchmethod_autoload (stash, "FREEZE", 0)))
		791	{
		792	int count;
		793	dSP;
		794
		795	ENTER; SAVETMPS;
		796	PUSHMARK (SP);
		797	EXTEND (SP, 2);
		798	// we re-bless the reference to get overload and other niceties right
		799	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
		800	PUSHs (sv_json);
		801
		802	PUTBACK;
		803	count = call_sv ((SV *)GvCV (method), G_ARRAY);
		804	SPAGAIN;
		805
		806	// catch this surprisingly common error
		807	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		808	croak ("%s::FREEZE method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		809
		810	encode_ch (enc, '(');
		811	encode_ch (enc, '"');
		812	encode_str (enc, HvNAME (stash), HvNAMELEN (stash), HvNAMEUTF8 (stash));
		813	encode_ch (enc, '"');
		814	encode_ch (enc, ')');
		815	encode_ch (enc, '[');
		816
		817	if (count)
		818	{
		819	int i;
		820
		821	for (i = 0; i < count - 1; ++i)
		822	{
		823	encode_sv (enc, SP[i + 1 - count]);
		824	encode_ch (enc, ',');
		825	}
		826
		827	encode_sv (enc, TOPs);
		828	SP -= count;
		829	}
		830
		831	encode_ch (enc, ']');
		832
		833	FREETMPS; LEAVE;
		834	}
		835	else if ((enc->json.flags & F_CONV_BLESSED) && (method = gv_fetchmethod_autoload (stash, "TO_JSON", 0)))
		836	{
		837	dSP;
		838
		839	ENTER; SAVETMPS;
		840	PUSHMARK (SP);
		841	// we re-bless the reference to get overload and other niceties right
		842	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
		843
		844	// calling with G_SCALAR ensures that we always get a 1 return value
		845	PUTBACK;
		846	call_sv ((SV *)GvCV (method), G_SCALAR);
		847	SPAGAIN;
		848
		849	// catch this surprisingly common error
		850	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		851	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		852
		853	sv = POPs;
		854	PUTBACK;
		855
		856	encode_sv (enc, sv);
		857
		858	FREETMPS; LEAVE;
		859	}
		860	else if (enc->json.flags & F_ALLOW_BLESSED)
		861	encode_str (enc, "null", 4, 0);
697	else	862	else
698	{
699	#if 0
700	if (0 && sv_derived_from (rv, "JSON::Literal"))
701	{
702	// not yet
703	}
704	#endif
705	if (enc->json.flags & F_CONV_BLESSED)
706	{
707	// we re-bless the reference to get overload and other niceties right
708	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0);
709
710	if (to_json)
711	{
712	dSP;
713
714	ENTER; SAVETMPS; PUSHMARK (SP);
715	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
716
717	// calling with G_SCALAR ensures that we always get a 1 return value
718	PUTBACK;
719	call_sv ((SV *)GvCV (to_json), G_SCALAR);
720	SPAGAIN;
721
722	// catch this surprisingly common error
723	if (SvROK (TOPs) && SvRV (TOPs) == sv)
724	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
725
726	sv = POPs;
727	PUTBACK;
728
729	encode_sv (enc, sv);
730
731	FREETMPS; LEAVE;
732	}
733	else if (enc->json.flags & F_ALLOW_BLESSED)
734	encode_str (enc, "null", 4, 0);
735	else
736	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",
737	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
738	}
739	else if (enc->json.flags & F_ALLOW_BLESSED)
740	encode_str (enc, "null", 4, 0);
741	else
742	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",	863	croak ("encountered object '%s', but neither allow_blessed, convert_blessed nor allow_tags settings are enabled (or TO_JSON/FREEZE method missing)",
743	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	864	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
744	}
745	}	865	}
746	else if (svt == SVt_PVHV)	866	else if (svt == SVt_PVHV)
747	encode_hv (enc, (HV *)sv);	867	encode_hv (enc, (HV *)sv);
748	else if (svt == SVt_PVAV)	868	else if (svt == SVt_PVAV)
749	encode_av (enc, (AV *)sv);	869	encode_av (enc, (AV *)sv);
750	else if (svt < SVt_PVAV)	870	else if (svt < SVt_PVAV)
751	{	871	{
752	STRLEN len = 0;	872	int bool_type = ref_bool_type (sv);
753	char *pv = svt ? SvPV (sv, len) : 0;
754		873
755	if (len == 1 && *pv == '1')	874	if (bool_type == 1)
756	encode_str (enc, "true", 4, 0);	875	encode_str (enc, "true", 4, 0);
757	else if (len == 1 && *pv == '0')	876	else if (bool_type == 0)
758	encode_str (enc, "false", 5, 0);	877	encode_str (enc, "false", 5, 0);
759	else if (enc->json.flags & F_ALLOW_UNKNOWN)	878	else if (enc->json.flags & F_ALLOW_UNKNOWN)
760	encode_str (enc, "null", 4, 0);	879	encode_str (enc, "null", 4, 0);
761	else	880	else
762	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",	881	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
…		…
825	}	944	}
826	else	945	else
827	{	946	{
828	// large integer, use the (rather slow) snprintf way.	947	// large integer, use the (rather slow) snprintf way.
829	need (enc, IVUV_MAXCHARS);	948	need (enc, IVUV_MAXCHARS);
830	enc->cur +=	949	enc->cur +=
831	SvIsUV(sv)	950	SvIsUV(sv)
832	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))	951	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))
833	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));	952	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));
834	}	953	}
835	}	954	}
836	else if (SvROK (sv))	955	else if (SvROK (sv))
837	encode_rv (enc, SvRV (sv));	956	encode_rv (enc, SvRV (sv));
838	else if (!SvOK (sv) \|\| enc->json.flags & F_ALLOW_UNKNOWN)	957	else if (!SvOK (sv) \|\| enc->json.flags & F_ALLOW_UNKNOWN)
839	encode_str (enc, "null", 4, 0);	958	encode_str (enc, "null", 4, 0);
840	else	959	else
841	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",	960	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, check your input data",
842	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));	961	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
843	}	962	}
844		963
845	static SV *	964	static SV *
846	encode_json (SV scalar, JSON json)	965	encode_json (SV scalar, JSON json)
847	{	966	{
848	enc_t enc;	967	enc_t enc;
849		968
850	if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar))	969	if (!(json->flags & F_ALLOW_NONREF) && json_nonref (scalar))
851	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");	970	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");
852		971
853	enc.json = *json;	972	enc.json = *json;
854	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	973	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
855	enc.cur = SvPVX (enc.sv);	974	enc.cur = SvPVX (enc.sv);
…		…
1062	cur++ = dec_cur++;	1181	cur++ = dec_cur++;
1063	while (--clen);	1182	while (--clen);
1064		1183
1065	utf8 = 1;	1184	utf8 = 1;
1066	}	1185	}
		1186	else if (ch == '\t' && dec->json.flags & F_RELAXED)
		1187	*cur++ = ch;
1067	else	1188	else
1068	{	1189	{
1069	--dec_cur;	1190	--dec_cur;
1070		1191
1071	if (!ch)	1192	if (!ch)
…		…
1081		1202
1082	if (sv)	1203	if (sv)
1083	{	1204	{
1084	STRLEN cur = SvCUR (sv);	1205	STRLEN cur = SvCUR (sv);
1085		1206
1086	if (SvLEN (sv) <= cur + len)	1207	if (SvLEN (sv) - cur <= len)
1087	SvGROW (sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);	1208	json_sv_grow (sv, cur, len);
1088		1209
1089	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);	1210	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);
1090	SvCUR_set (sv, SvCUR (sv) + len);	1211	SvCUR_set (sv, SvCUR (sv) + len);
1091	}	1212	}
1092	else	1213	else
…		…
1259	if (*dec->cur == ']')	1380	if (*dec->cur == ']')
1260	{	1381	{
1261	++dec->cur;	1382	++dec->cur;
1262	break;	1383	break;
1263	}	1384	}
1264		1385
1265	if (*dec->cur != ',')	1386	if (*dec->cur != ',')
1266	ERR (", or ] expected while parsing array");	1387	ERR (", or ] expected while parsing array");
1267		1388
1268	++dec->cur;	1389	++dec->cur;
1269		1390
…		…
1383		1504
1384	DEC_DEC_DEPTH;	1505	DEC_DEC_DEPTH;
1385	sv = newRV_noinc ((SV *)hv);	1506	sv = newRV_noinc ((SV *)hv);
1386		1507
1387	// check filter callbacks	1508	// check filter callbacks
1388	if (dec->json.flags & F_HOOK)	1509	if (expect_false (dec->json.flags & F_HOOK))
1389	{	1510	{
1390	if (dec->json.cb_sk_object && HvKEYS (hv) == 1)	1511	if (dec->json.cb_sk_object && HvKEYS (hv) == 1)
1391	{	1512	{
1392	HE cb, he;	1513	HE cb, he;
1393		1514
1394	hv_iterinit (hv);	1515	hv_iterinit (hv);
1395	he = hv_iternext (hv);	1516	he = hv_iternext (hv);
1396	hv_iterinit (hv);	1517	hv_iterinit (hv);
1397		1518
1398	// the next line creates a mortal sv each time its called.	1519	// the next line creates a mortal sv each time it's called.
1399	// might want to optimise this for common cases.	1520	// might want to optimise this for common cases.
1400	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);	1521	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);
1401		1522
1402	if (cb)	1523	if (cb)
1403	{	1524	{
1404	dSP;	1525	dSP;
1405	int count;	1526	int count;
1406		1527
1407	ENTER; SAVETMPS; PUSHMARK (SP);	1528	ENTER; SAVETMPS;
		1529	PUSHMARK (SP);
1408	XPUSHs (HeVAL (he));	1530	XPUSHs (HeVAL (he));
1409	sv_2mortal (sv);	1531	sv_2mortal (sv);
1410		1532
1411	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;	1533	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;
1412		1534
…		…
1414	{	1536	{
1415	sv = newSVsv (POPs);	1537	sv = newSVsv (POPs);
1416	FREETMPS; LEAVE;	1538	FREETMPS; LEAVE;
1417	return sv;	1539	return sv;
1418	}	1540	}
		1541	else if (count)
		1542	croak ("filter_json_single_key_object callbacks must not return more than one scalar");
1419		1543
1420	SvREFCNT_inc (sv);	1544	SvREFCNT_inc (sv);
1421	FREETMPS; LEAVE;	1545	FREETMPS; LEAVE;
1422	}	1546	}
1423	}	1547	}
…		…
1425	if (dec->json.cb_object)	1549	if (dec->json.cb_object)
1426	{	1550	{
1427	dSP;	1551	dSP;
1428	int count;	1552	int count;
1429		1553
1430	ENTER; SAVETMPS; PUSHMARK (SP);	1554	ENTER; SAVETMPS;
		1555	PUSHMARK (SP);
1431	XPUSHs (sv_2mortal (sv));	1556	XPUSHs (sv_2mortal (sv));
1432		1557
1433	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;	1558	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;
1434		1559
1435	if (count == 1)	1560	if (count == 1)
1436	{
1437	sv = newSVsv (POPs);	1561	sv = newSVsv (POPs);
1438	FREETMPS; LEAVE;	1562	else if (count == 0)
1439	return sv;
1440	}
1441
1442	SvREFCNT_inc (sv);	1563	SvREFCNT_inc (sv);
		1564	else
		1565	croak ("filter_json_object callbacks must not return more than one scalar");
		1566
1443	FREETMPS; LEAVE;	1567	FREETMPS; LEAVE;
1444	}	1568	}
1445	}	1569	}
1446		1570
1447	return sv;	1571	return sv;
…		…
1451	DEC_DEC_DEPTH;	1575	DEC_DEC_DEPTH;
1452	return 0;	1576	return 0;
1453	}	1577	}
1454		1578
1455	static SV *	1579	static SV *
		1580	decode_tag (dec_t *dec)
		1581	{
		1582	SV *tag = 0;
		1583	SV *val = 0;
		1584
		1585	if (!(dec->json.flags & F_ALLOW_TAGS))
		1586	ERR ("malformed JSON string, neither array, object, number, string or atom");
		1587
		1588	++dec->cur;
		1589
		1590	decode_ws (dec);
		1591
		1592	tag = decode_sv (dec);
		1593	if (!tag)
		1594	goto fail;
		1595
		1596	if (!SvPOK (tag))
		1597	ERR ("malformed JSON string, (tag) must be a string");
		1598
		1599	decode_ws (dec);
		1600
		1601	if (*dec->cur != ')')
		1602	ERR (") expected after tag");
		1603
		1604	++dec->cur;
		1605
		1606	decode_ws (dec);
		1607
		1608	val = decode_sv (dec);
		1609	if (!val)
		1610	goto fail;
		1611
		1612	if (!SvROK (val) \|\| SvTYPE (SvRV (val)) != SVt_PVAV)
		1613	ERR ("malformed JSON string, tag value must be an array");
		1614
		1615	{
		1616	AV av = (AV )SvRV (val);
		1617	int i, len = av_len (av) + 1;
		1618	HV *stash = gv_stashsv (tag, 0);
		1619	SV *sv;
		1620
		1621	if (!stash)
		1622	ERR ("cannot decode perl-object (package does not exist)");
		1623
		1624	GV *method = gv_fetchmethod_autoload (stash, "THAW", 0);
		1625
		1626	if (!method)
		1627	ERR ("cannot decode perl-object (package does not have a THAW method)");
		1628
		1629	dSP;
		1630
		1631	ENTER; SAVETMPS;
		1632	PUSHMARK (SP);
		1633	EXTEND (SP, len + 2);
		1634	// we re-bless the reference to get overload and other niceties right
		1635	PUSHs (tag);
		1636	PUSHs (sv_json);
		1637
		1638	for (i = 0; i < len; ++i)
		1639	PUSHs (*av_fetch (av, i, 1));
		1640
		1641	PUTBACK;
		1642	call_sv ((SV *)GvCV (method), G_SCALAR);
		1643	SPAGAIN;
		1644
		1645	SvREFCNT_dec (tag);
		1646	SvREFCNT_dec (val);
		1647	sv = SvREFCNT_inc (POPs);
		1648
		1649	PUTBACK;
		1650
		1651	FREETMPS; LEAVE;
		1652
		1653	return sv;
		1654	}
		1655
		1656	fail:
		1657	SvREFCNT_dec (tag);
		1658	SvREFCNT_dec (val);
		1659	return 0;
		1660	}
		1661
		1662	static SV *
1456	decode_sv (dec_t *dec)	1663	decode_sv (dec_t *dec)
1457	{	1664	{
1458	// the beauty of JSON: you need exactly one character lookahead	1665	// the beauty of JSON: you need exactly one character lookahead
1459	// to parse everything.	1666	// to parse everything.
1460	switch (*dec->cur)	1667	switch (*dec->cur)
1461	{	1668	{
1462	case '"': ++dec->cur; return decode_str (dec);	1669	case '"': ++dec->cur; return decode_str (dec);
1463	case '[': ++dec->cur; return decode_av (dec);	1670	case '[': ++dec->cur; return decode_av (dec);
1464	case '{': ++dec->cur; return decode_hv (dec);	1671	case '{': ++dec->cur; return decode_hv (dec);
		1672	case '(': return decode_tag (dec);
1465		1673
1466	case '-':	1674	case '-':
1467	case '0': case '1': case '2': case '3': case '4':	1675	case '0': case '1': case '2': case '3': case '4':
1468	case '5': case '6': case '7': case '8': case '9':	1676	case '5': case '6': case '7': case '8': case '9':
1469	return decode_num (dec);	1677	return decode_num (dec);
1470		1678
		1679	case 'f':
		1680	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
		1681	{
		1682	dec->cur += 5;
		1683
		1684	if (expect_false (!dec->json.v_false))
		1685	dec->json.v_false = GET_BOOL (false);
		1686
		1687	return newSVsv (dec->json.v_false);
		1688	}
		1689	else
		1690	ERR ("'false' expected");
		1691
		1692	break;
		1693
1471	case 't':	1694	case 't':
1472	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1695	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1473	{	1696	{
1474	dec->cur += 4;	1697	dec->cur += 4;
1475	#if JSON_SLOW	1698
1476	json_true = get_bool ("JSON::XS::true");	1699	if (expect_false (!dec->json.v_true))
1477	#endif	1700	dec->json.v_true = GET_BOOL (true);
		1701
1478	return newSVsv (json_true);	1702	return newSVsv (dec->json.v_true);
1479	}	1703	}
1480	else	1704	else
1481	ERR ("'true' expected");	1705	ERR ("'true' expected");
1482
1483	break;
1484
1485	case 'f':
1486	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1487	{
1488	dec->cur += 5;
1489	#if JSON_SLOW
1490	json_false = get_bool ("JSON::XS::false");
1491	#endif
1492	return newSVsv (json_false);
1493	}
1494	else
1495	ERR ("'false' expected");
1496		1706
1497	break;	1707	break;
1498		1708
1499	case 'n':	1709	case 'n':
1500	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4))	1710	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4))
…		…
1506	ERR ("'null' expected");	1716	ERR ("'null' expected");
1507		1717
1508	break;	1718	break;
1509		1719
1510	default:	1720	default:
1511	ERR ("malformed JSON string, neither array, object, number, string or atom");	1721	ERR ("malformed JSON string, neither tag, array, object, number, string or atom");
1512	break;	1722	break;
1513	}	1723	}
1514		1724
1515	fail:	1725	fail:
1516	return 0;	1726	return 0;
1517	}	1727	}
1518		1728
1519	static SV *	1729	static SV *
1520	decode_json (SV string, JSON json, char **offset_return)	1730	decode_json (SV string, JSON json, STRLEN *offset_return)
1521	{	1731	{
1522	dec_t dec;	1732	dec_t dec;
1523	SV *sv;	1733	SV *sv;
1524		1734
1525	/* work around bugs in 5.10 where manipulating magic values	1735	/* work around bugs in 5.10 where manipulating magic values
1526	* will perl ignore the magic in subsequent accesses.	1736	* makes perl ignore the magic in subsequent accesses.
1527	* also make a copy of non-PV values, to get them into a clean	1737	* also make a copy of non-PV values, to get them into a clean
1528	* state (SvPV should do that, but it's buggy, see below).	1738	* state (SvPV should do that, but it's buggy, see below).
		1739	*
		1740	* SvIsCOW_shared_hash works around a bug in perl (possibly 5.16),
		1741	* as reported by Reini Urban.
1529	*/	1742	*/
1530	/SvGETMAGIC (string);/	1743	/SvGETMAGIC (string);/
1531	if (SvMAGICAL (string) \|\| !SvPOK (string))	1744	if (SvMAGICAL (string) \|\| !SvPOK (string) \|\| SvIsCOW_shared_hash (string))
1532	string = sv_2mortal (newSVsv (string));	1745	string = sv_2mortal (newSVsv (string));
1533		1746
1534	SvUPGRADE (string, SVt_PV);	1747	SvUPGRADE (string, SVt_PV);
1535		1748
1536	/* work around a bug in perl 5.10, which causes SvCUR to fail an	1749	/* work around a bug in perl 5.10, which causes SvCUR to fail an
…		…
1575		1788
1576	decode_ws (&dec);	1789	decode_ws (&dec);
1577	sv = decode_sv (&dec);	1790	sv = decode_sv (&dec);
1578		1791
1579	if (offset_return)	1792	if (offset_return)
1580	*offset_return = dec.cur;	1793	*offset_return = dec.cur - SvPVX (string);
1581		1794	else if (sv)
1582	if (!(offset_return \|\| !sv))
1583	{	1795	{
1584	// check for trailing garbage	1796	// check for trailing garbage
1585	decode_ws (&dec);	1797	decode_ws (&dec);
1586		1798
1587	if (*dec.cur)	1799	if (dec.cur != dec.end)
1588	{	1800	{
1589	dec.err = "garbage after JSON object";	1801	dec.err = "garbage after JSON object";
1590	SvREFCNT_dec (sv);	1802	SvREFCNT_dec (sv);
1591	sv = 0;	1803	sv = 0;
1592	}	1804	}
…		…
1611	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1823	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
1612	}	1824	}
1613		1825
1614	sv = sv_2mortal (sv);	1826	sv = sv_2mortal (sv);
1615		1827
1616	if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv))	1828	if (!(dec.json.flags & F_ALLOW_NONREF) && json_nonref (sv))
1617	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");	1829	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
1618		1830
1619	return sv;	1831	return sv;
1620	}	1832	}
1621		1833
…		…
1630	// the state machine here is a bit convoluted and could be simplified a lot	1842	// the state machine here is a bit convoluted and could be simplified a lot
1631	// but this would make it slower, so...	1843	// but this would make it slower, so...
1632		1844
1633	for (;;)	1845	for (;;)
1634	{	1846	{
1635	//printf ("loop pod %d p<%c><%s>, mode %d nest %d\n", p - SvPVX (self->incr_text), p, p, self->incr_mode, self->incr_nest);//D
1636	switch (self->incr_mode)	1847	switch (self->incr_mode)
1637	{	1848	{
		1849	// reached end of a scalar, see if we are inside a nested structure or not
		1850	end_of_scalar:
		1851	self->incr_mode = INCR_M_JSON;
		1852
		1853	if (self->incr_nest) // end of a scalar inside array, object or tag
		1854	goto incr_m_json;
		1855	else // end of scalar outside structure, json text ends here
		1856	goto interrupt;
		1857
1638	// only used for initial whitespace skipping	1858	// only used for initial whitespace skipping
1639	case INCR_M_WS:	1859	case INCR_M_WS:
1640	for (;;)	1860	for (;;)
1641	{	1861	{
1642	if (*p > 0x20)	1862	if (*p > 0x20)
…		…
1684	++p;	1904	++p;
1685	}	1905	}
1686		1906
1687	break;	1907	break;
1688		1908
		1909	// inside true/false/null
		1910	case INCR_M_TFN:
		1911	incr_m_tfn:
		1912	for (;;)
		1913	switch (*p++)
		1914	{
		1915	case 'r': case 'u': case 'e': // tRUE, falsE, nUll
		1916	case 'a': case 'l': case 's': // fALSe, nuLL
		1917	// allowed
		1918	break;
		1919
		1920	default:
		1921	--p;
		1922	goto end_of_scalar;
		1923	}
		1924
		1925	// inside a number
		1926	case INCR_M_NUM:
		1927	incr_m_num:
		1928	for (;;)
		1929	switch (*p++)
		1930	{
		1931	case 'e': case 'E': case '.': case '+':
		1932	case '-':
		1933	case '0': case '1': case '2': case '3': case '4':
		1934	case '5': case '6': case '7': case '8': case '9':
		1935	// allowed
		1936	break;
		1937
		1938	default:
		1939	--p;
		1940	goto end_of_scalar;
		1941	}
		1942
1689	// inside a string	1943	// inside a string
1690	case INCR_M_STR:	1944	case INCR_M_STR:
1691	incr_m_str:	1945	incr_m_str:
1692	for (;;)	1946	for (;;)
1693	{	1947	{
1694	if (*p == '"')	1948	if (*p == '"')
1695	{	1949	{
1696	++p;	1950	++p;
1697	self->incr_mode = INCR_M_JSON;
1698
1699	if (!self->incr_nest)
1700	goto interrupt;
1701
1702	goto incr_m_json;	1951	goto end_of_scalar;
1703	}	1952	}
1704	else if (*p == '\\')	1953	else if (*p == '\\')
1705	{	1954	{
1706	++p; // "virtually" consumes character after \	1955	++p; // "virtually" consumes character after \
1707		1956
…		…
1737	--p; // do not eat the whitespace, let the next round do it	1986	--p; // do not eat the whitespace, let the next round do it
1738	goto interrupt;	1987	goto interrupt;
1739	}	1988	}
1740	break;	1989	break;
1741		1990
		1991	// the following three blocks handle scalars. this makes the parser
		1992	// more strict than required inside arrays or objects, and could
		1993	// be moved to a special case on the toplevel (except strings)
		1994	case 't':
		1995	case 'f':
		1996	case 'n':
		1997	self->incr_mode = INCR_M_TFN;
		1998	goto incr_m_tfn;
		1999
		2000	case '-':
		2001	case '0': case '1': case '2': case '3': case '4':
		2002	case '5': case '6': case '7': case '8': case '9':
		2003	self->incr_mode = INCR_M_NUM;
		2004	goto incr_m_num;
		2005
1742	case '"':	2006	case '"':
1743	self->incr_mode = INCR_M_STR;	2007	self->incr_mode = INCR_M_STR;
1744	goto incr_m_str;	2008	goto incr_m_str;
1745		2009
1746	case '[':	2010	case '[':
1747	case '{':	2011	case '{':
		2012	case '(':
1748	if (++self->incr_nest > self->max_depth)	2013	if (++self->incr_nest > self->max_depth)
1749	croak (ERR_NESTING_EXCEEDED);	2014	croak (ERR_NESTING_EXCEEDED);
1750	break;	2015	break;
1751		2016
1752	case ']':	2017	case ']':
1753	case '}':	2018	case '}':
1754	if (--self->incr_nest <= 0)	2019	if (--self->incr_nest <= 0)
1755	goto interrupt;	2020	goto interrupt;
		2021	break;
		2022
		2023	case ')':
		2024	--self->incr_nest;
1756	break;	2025	break;
1757		2026
1758	case '#':	2027	case '#':
1759	self->incr_mode = INCR_M_C1;	2028	self->incr_mode = INCR_M_C1;
1760	goto incr_m_c;	2029	goto incr_m_c;
…		…
1786	i >= '0' && i <= '9' ? i - '0'	2055	i >= '0' && i <= '9' ? i - '0'
1787	: i >= 'a' && i <= 'f' ? i - 'a' + 10	2056	: i >= 'a' && i <= 'f' ? i - 'a' + 10
1788	: i >= 'A' && i <= 'F' ? i - 'A' + 10	2057	: i >= 'A' && i <= 'F' ? i - 'A' + 10
1789	: -1;	2058	: -1;
1790		2059
1791	json_stash = gv_stashpv ("JSON::XS" , 1);	2060	json_stash = gv_stashpv ("JSON::XS" , 1);
1792	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);	2061	bool_stash = gv_stashpv ("Types::Serialiser::Boolean", 1);
1793
1794	json_true = get_bool ("JSON::XS::true");
1795	json_false = get_bool ("JSON::XS::false");	2062	bool_false = get_bool ("Types::Serialiser::false");
		2063	bool_true = get_bool ("Types::Serialiser::true");
		2064
		2065	sv_json = newSVpv ("JSON", 0);
		2066	SvREADONLY_on (sv_json);
1796		2067
1797	CvNODEBUG_on (get_cv ("JSON::XS::incr_text", 0)); /* the debugger completely breaks lvalue subs */	2068	CvNODEBUG_on (get_cv ("JSON::XS::incr_text", 0)); /* the debugger completely breaks lvalue subs */
1798	}	2069	}
1799		2070
1800	PROTOTYPES: DISABLE	2071	PROTOTYPES: DISABLE
1801		2072
1802	void CLONE (...)	2073	void CLONE (...)
1803	CODE:	2074	CODE:
		2075	// as long as these writes are atomic, the race should not matter
		2076	// as existing threads either already use 0, or use the old value,
		2077	// which is sitll correct for the initial thread.
1804	json_stash = 0;	2078	json_stash = 0;
1805	json_boolean_stash = 0;	2079	bool_stash = 0;
		2080	bool_false = 0;
		2081	bool_true = 0;
1806		2082
1807	void new (char *klass)	2083	void new (char *klass)
1808	PPCODE:	2084	PPCODE:
1809	{	2085	{
1810	SV *pv = NEWSV (0, sizeof (JSON));	2086	SV *pv = NEWSV (0, sizeof (JSON));
1811	SvPOK_only (pv);	2087	SvPOK_only (pv);
1812	json_init ((JSON *)SvPVX (pv));	2088	json_init ((JSON *)SvPVX (pv));
1813	XPUSHs (sv_2mortal (sv_bless (	2089	XPUSHs (sv_2mortal (sv_bless (
1814	newRV_noinc (pv),	2090	newRV_noinc (pv),
1815	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)	2091	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)
1816	)));	2092	)));
1817	}	2093	}
		2094
		2095	void boolean_values (JSON self, SV v_false = 0, SV *v_true = 0)
		2096	PPCODE:
		2097	self->v_false = newSVsv (v_false);
		2098	self->v_true = newSVsv (v_true);
		2099	XPUSHs (ST (0));
		2100
		2101	void get_boolean_values (JSON *self)
		2102	PPCODE:
		2103	if (self->v_false && self->v_true)
		2104	{
		2105	EXTEND (SP, 2);
		2106	PUSHs (self->v_false);
		2107	PUSHs (self->v_true);
		2108	}
1818		2109
1819	void ascii (JSON *self, int enable = 1)	2110	void ascii (JSON *self, int enable = 1)
1820	ALIAS:	2111	ALIAS:
1821	ascii = F_ASCII	2112	ascii = F_ASCII
1822	latin1 = F_LATIN1	2113	latin1 = F_LATIN1
…		…
1830	shrink = F_SHRINK	2121	shrink = F_SHRINK
1831	allow_blessed = F_ALLOW_BLESSED	2122	allow_blessed = F_ALLOW_BLESSED
1832	convert_blessed = F_CONV_BLESSED	2123	convert_blessed = F_CONV_BLESSED
1833	relaxed = F_RELAXED	2124	relaxed = F_RELAXED
1834	allow_unknown = F_ALLOW_UNKNOWN	2125	allow_unknown = F_ALLOW_UNKNOWN
		2126	allow_tags = F_ALLOW_TAGS
1835	PPCODE:	2127	PPCODE:
1836	{	2128	{
1837	if (enable)	2129	if (enable)
1838	self->flags \|= ix;	2130	self->flags \|= ix;
1839	else	2131	else
…		…
1855	get_shrink = F_SHRINK	2147	get_shrink = F_SHRINK
1856	get_allow_blessed = F_ALLOW_BLESSED	2148	get_allow_blessed = F_ALLOW_BLESSED
1857	get_convert_blessed = F_CONV_BLESSED	2149	get_convert_blessed = F_CONV_BLESSED
1858	get_relaxed = F_RELAXED	2150	get_relaxed = F_RELAXED
1859	get_allow_unknown = F_ALLOW_UNKNOWN	2151	get_allow_unknown = F_ALLOW_UNKNOWN
		2152	get_allow_tags = F_ALLOW_TAGS
1860	PPCODE:	2153	PPCODE:
1861	XPUSHs (boolSV (self->flags & ix));	2154	XPUSHs (boolSV (self->flags & ix));
1862		2155
1863	void max_depth (JSON *self, U32 max_depth = 0x80000000UL)	2156	void max_depth (JSON *self, U32 max_depth = 0x80000000UL)
1864	PPCODE:	2157	PPCODE:
…		…
1892	}	2185	}
1893		2186
1894	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)	2187	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)
1895	PPCODE:	2188	PPCODE:
1896	{	2189	{
1897	if (!self->cb_sk_object)	2190	if (!self->cb_sk_object)
1898	self->cb_sk_object = newHV ();	2191	self->cb_sk_object = newHV ();
1899		2192
1900	if (SvOK (cb))	2193	if (SvOK (cb))
1901	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);	2194	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
1902	else	2195	else
…		…
1913	XPUSHs (ST (0));	2206	XPUSHs (ST (0));
1914	}	2207	}
1915		2208
1916	void encode (JSON self, SV scalar)	2209	void encode (JSON self, SV scalar)
1917	PPCODE:	2210	PPCODE:
1918	XPUSHs (encode_json (scalar, self));	2211	PUTBACK; XPUSHs (encode_json (scalar, self));
1919		2212
1920	void decode (JSON self, SV jsonstr)	2213	void decode (JSON self, SV jsonstr)
1921	PPCODE:	2214	PPCODE:
1922	XPUSHs (decode_json (jsonstr, self, 0));	2215	PUTBACK; XPUSHs (decode_json (jsonstr, self, 0));
1923		2216
1924	void decode_prefix (JSON self, SV jsonstr)	2217	void decode_prefix (JSON self, SV jsonstr)
1925	PPCODE:	2218	PPCODE:
1926	{	2219	{
1927	char *offset;	2220	SV *sv;
		2221	STRLEN offset;
		2222	PUTBACK; sv = decode_json (jsonstr, self, &offset);
1928	EXTEND (SP, 2);	2223	EXTEND (SP, 2);
1929	PUSHs (decode_json (jsonstr, self, &offset));	2224	PUSHs (sv);
1930	PUSHs (sv_2mortal (newSVuv (ptr_to_index (jsonstr, offset))));	2225	PUSHs (sv_2mortal (newSVuv (ptr_to_index (jsonstr, SvPV_nolen (jsonstr) + offset))));
1931	}	2226	}
1932		2227
1933	void incr_parse (JSON self, SV jsonstr = 0)	2228	void incr_parse (JSON self, SV jsonstr = 0)
1934	PPCODE:	2229	PPCODE:
1935	{	2230	{
…		…
1969	{	2264	{
1970	STRLEN len;	2265	STRLEN len;
1971	const char *str = SvPV (jsonstr, len);	2266	const char *str = SvPV (jsonstr, len);
1972	STRLEN cur = SvCUR (self->incr_text);	2267	STRLEN cur = SvCUR (self->incr_text);
1973		2268
1974	if (SvLEN (self->incr_text) <= cur + len)	2269	if (SvLEN (self->incr_text) - cur <= len)
1975	SvGROW (self->incr_text, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);	2270	json_sv_grow (self->incr_text, cur, len);
1976		2271
1977	Move (str, SvEND (self->incr_text), len, char);	2272	Move (str, SvEND (self->incr_text), len, char);
1978	SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len);	2273	SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len);
1979	*SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there	2274	*SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there
1980	}	2275	}
1981	}	2276	}
1982		2277
1983	if (GIMME_V != G_VOID)	2278	if (GIMME_V != G_VOID)
1984	do	2279	do
1985	{	2280	{
		2281	SV *sv;
1986	char *offset;	2282	STRLEN offset;
1987		2283
1988	if (!INCR_DONE (self))	2284	if (!INCR_DONE (self))
1989	{	2285	{
1990	incr_parse (self);	2286	incr_parse (self);
1991		2287
…		…
2004		2300
2005	break;	2301	break;
2006	}	2302	}
2007	}	2303	}
2008		2304
2009	XPUSHs (decode_json (self->incr_text, self, &offset));	2305	PUTBACK; sv = decode_json (self->incr_text, self, &offset);
		2306	XPUSHs (sv);
2010		2307
2011	self->incr_pos -= offset - SvPVX (self->incr_text);	2308	self->incr_pos -= offset;
2012	self->incr_nest = 0;	2309	self->incr_nest = 0;
2013	self->incr_mode = 0;	2310	self->incr_mode = 0;
2014		2311
2015	sv_chop (self->incr_text, offset);	2312	sv_chop (self->incr_text, SvPVX (self->incr_text) + offset);
2016	}	2313	}
2017	while (GIMME_V == G_ARRAY);	2314	while (GIMME_V == G_ARRAY);
2018	}	2315	}
2019		2316
2020	SV incr_text (JSON self)	2317	SV incr_text (JSON self)
…		…
2051	self->incr_mode = 0;	2348	self->incr_mode = 0;
2052	}	2349	}
2053		2350
2054	void DESTROY (JSON *self)	2351	void DESTROY (JSON *self)
2055	CODE:	2352	CODE:
		2353	SvREFCNT_dec (self->v_false);
		2354	SvREFCNT_dec (self->v_true);
2056	SvREFCNT_dec (self->cb_sk_object);	2355	SvREFCNT_dec (self->cb_sk_object);
2057	SvREFCNT_dec (self->cb_object);	2356	SvREFCNT_dec (self->cb_object);
2058	SvREFCNT_dec (self->incr_text);	2357	SvREFCNT_dec (self->incr_text);
2059		2358
2060	PROTOTYPES: ENABLE	2359	PROTOTYPES: ENABLE
2061		2360
2062	void encode_json (SV *scalar)	2361	void encode_json (SV *scalar)
2063	ALIAS:
2064	to_json_ = 0
2065	encode_json = F_UTF8
2066	PPCODE:	2362	PPCODE:
2067	{	2363	{
2068	JSON json;	2364	JSON json;
2069	json_init (&json);	2365	json_init (&json);
2070	json.flags \|= ix;	2366	json.flags \|= F_UTF8;
2071	XPUSHs (encode_json (scalar, &json));	2367	PUTBACK; XPUSHs (encode_json (scalar, &json));
2072	}	2368	}
2073		2369
2074	void decode_json (SV *jsonstr)	2370	void decode_json (SV *jsonstr)
2075	ALIAS:
2076	from_json_ = 0
2077	decode_json = F_UTF8
2078	PPCODE:	2371	PPCODE:
2079	{	2372	{
2080	JSON json;	2373	JSON json;
2081	json_init (&json);	2374	json_init (&json);
2082	json.flags \|= ix;	2375	json.flags \|= F_UTF8;
2083	XPUSHs (decode_json (jsonstr, &json, 0));	2376	PUTBACK; XPUSHs (decode_json (jsonstr, &json, 0));
2084	}	2377	}
2085		2378

Diff Legend

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+Removed lines
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+Added lines
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+Changed lines
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+Changed lines

Comparing JSON-XS/XS.xs (file contents): Revision 1.113 by root, Thu Aug 11 21:37:41 2011 UTC vs. Revision 1.137 by root, Sun Feb 24 04:21:05 2019 UTC

Diff Legend

Comparing JSON-XS/XS.xs (file contents):
Revision 1.113 by root, Thu Aug 11 21:37:41 2011 UTC vs.
Revision 1.137 by root, Sun Feb 24 04:21:05 2019 UTC