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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.48 by root, Sun Jul 1 22:20:00 2007 UTC vs.
Revision 1.76 by root, Thu Mar 20 00:56:37 2008 UTC

…		…
1	#include "EXTERN.h"	1	#include "EXTERN.h"
2	#include "perl.h"	2	#include "perl.h"
3	#include "XSUB.h"	3	#include "XSUB.h"
4		4
5	#include "assert.h"	5	#include <assert.h>
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>
		10	#include <float.h>
9		11
10	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	12	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
11	# define snprintf _snprintf // C compilers have this in stdio.h	13	# define snprintf _snprintf // C compilers have this in stdio.h
12	#endif	14	#endif
13		15
14	// some old perls do not have this, try to make it work, no	16	// some old perls do not have this, try to make it work, no
15	// guarentees, though. if it breaks, you get to keep the pieces.	17	// guarentees, though. if it breaks, you get to keep the pieces.
16	#ifndef UTF8_MAXBYTES	18	#ifndef UTF8_MAXBYTES
17	# define UTF8_MAXBYTES 13	19	# define UTF8_MAXBYTES 13
18	#endif	20	#endif
		21
		22	#define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 2)
19		23
20	#define F_ASCII 0x00000001UL	24	#define F_ASCII 0x00000001UL
21	#define F_LATIN1 0x00000002UL	25	#define F_LATIN1 0x00000002UL
22	#define F_UTF8 0x00000004UL	26	#define F_UTF8 0x00000004UL
23	#define F_INDENT 0x00000008UL	27	#define F_INDENT 0x00000008UL
25	#define F_SPACE_BEFORE 0x00000020UL	29	#define F_SPACE_BEFORE 0x00000020UL
26	#define F_SPACE_AFTER 0x00000040UL	30	#define F_SPACE_AFTER 0x00000040UL
27	#define F_ALLOW_NONREF 0x00000100UL	31	#define F_ALLOW_NONREF 0x00000100UL
28	#define F_SHRINK 0x00000200UL	32	#define F_SHRINK 0x00000200UL
29	#define F_ALLOW_BLESSED 0x00000400UL	33	#define F_ALLOW_BLESSED 0x00000400UL
30	#define F_CONV_BLESSED 0x00000800UL // NYI	34	#define F_CONV_BLESSED 0x00000800UL
		35	#define F_RELAXED 0x00001000UL
		36
31	#define F_MAXDEPTH 0xf8000000UL	37	#define F_MAXDEPTH 0xf8000000UL
32	#define S_MAXDEPTH 27	38	#define S_MAXDEPTH 27
33	#define F_MAXSIZE 0x01f00000UL	39	#define F_MAXSIZE 0x01f00000UL
34	#define S_MAXSIZE 20	40	#define S_MAXSIZE 20
		41	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing
35		42
36	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))	43	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))
37	#define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE ))	44	#define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE ))
38		45
39	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER	46	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
…		…
46		53
47	#define SB do {	54	#define SB do {
48	#define SE } while (0)	55	#define SE } while (0)
49		56
50	#if __GNUC__ >= 3	57	#if __GNUC__ >= 3
51	# define expect(expr,value) __builtin_expect ((expr),(value))	58	# define expect(expr,value) __builtin_expect ((expr), (value))
52	# define inline inline	59	# define INLINE static inline
53	#else	60	#else
54	# define expect(expr,value) (expr)	61	# define expect(expr,value) (expr)
55	# define inline static	62	# define INLINE static
56	#endif	63	#endif
57		64
58	#define expect_false(expr) expect ((expr) != 0, 0)	65	#define expect_false(expr) expect ((expr) != 0, 0)
59	#define expect_true(expr) expect ((expr) != 0, 1)	66	#define expect_true(expr) expect ((expr) != 0, 1)
60		67
		68	#define IN_RANGE_INC(type,val,beg,end) \
		69	((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \
		70	<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))
		71
		72	#ifdef USE_ITHREADS
		73	# define JSON_SLOW 1
		74	# define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1))
		75	#else
		76	# define JSON_SLOW 0
		77	# define JSON_STASH json_stash
		78	#endif
		79
61	static HV json_stash, json_boolean_stash; // JSON::XS::	80	static HV json_stash, json_boolean_stash; // JSON::XS::
62	static SV json_true, json_false;	81	static SV json_true, json_false;
63		82
64	typedef struct {	83	typedef struct {
65	U32 flags;	84	U32 flags;
		85	SV *cb_object;
		86	HV *cb_sk_object;
66	} JSON;	87	} JSON;
67		88
68	/////////////////////////////////////////////////////////////////////////////	89	/////////////////////////////////////////////////////////////////////////////
69	// utility functions	90	// utility functions
70		91
71	inline void	92	INLINE void
72	shrink (SV *sv)	93	shrink (SV *sv)
73	{	94	{
74	sv_utf8_downgrade (sv, 1);	95	sv_utf8_downgrade (sv, 1);
75	if (SvLEN (sv) > SvCUR (sv) + 1)	96	if (SvLEN (sv) > SvCUR (sv) + 1)
76	{	97	{
…		…
85	// decode an utf-8 character and return it, or (UV)-1 in	106	// decode an utf-8 character and return it, or (UV)-1 in
86	// case of an error.	107	// case of an error.
87	// we special-case "safe" characters from U+80 .. U+7FF,	108	// we special-case "safe" characters from U+80 .. U+7FF,
88	// but use the very good perl function to parse anything else.	109	// but use the very good perl function to parse anything else.
89	// note that we never call this function for a ascii codepoints	110	// note that we never call this function for a ascii codepoints
90	inline UV	111	INLINE UV
91	decode_utf8 (unsigned char s, STRLEN len, STRLEN clen)	112	decode_utf8 (unsigned char s, STRLEN len, STRLEN clen)
92	{	113	{
93	if (expect_false (s[0] > 0xdf \|\| s[0] < 0xc2))	114	if (expect_true (len >= 2
94	return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY);	115	&& IN_RANGE_INC (char, s[0], 0xc2, 0xdf)
95	else if (len > 1 && s[1] >= 0x80 && s[1] <= 0xbf)	116	&& IN_RANGE_INC (char, s[1], 0x80, 0xbf)))
96	{	117	{
97	*clen = 2;	118	*clen = 2;
98	return ((s[0] & 0x1f) << 6) \| (s[1] & 0x3f);	119	return ((s[0] & 0x1f) << 6) \| (s[1] & 0x3f);
99	}	120	}
100	else	121	else
101	{	122	return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY);
102	*clen = (STRLEN)-1;	123	}
103	return (UV)-1;	124
104	}	125	// likewise for encoding, also never called for ascii codepoints
		126	// this function takes advantage of this fact, although current gccs
		127	// seem to optimise the check for >= 0x80 away anyways
		128	INLINE unsigned char *
		129	encode_utf8 (unsigned char *s, UV ch)
		130	{
		131	if (expect_false (ch < 0x000080))
		132	*s++ = ch;
		133	else if (expect_true (ch < 0x000800))
		134	*s++ = 0xc0 \| ( ch >> 6),
		135	*s++ = 0x80 \| ( ch & 0x3f);
		136	else if ( ch < 0x010000)
		137	*s++ = 0xe0 \| ( ch >> 12),
		138	*s++ = 0x80 \| ((ch >> 6) & 0x3f),
		139	*s++ = 0x80 \| ( ch & 0x3f);
		140	else if ( ch < 0x110000)
		141	*s++ = 0xf0 \| ( ch >> 18),
		142	*s++ = 0x80 \| ((ch >> 12) & 0x3f),
		143	*s++ = 0x80 \| ((ch >> 6) & 0x3f),
		144	*s++ = 0x80 \| ( ch & 0x3f);
		145
		146	return s;
105	}	147	}
106		148
107	/////////////////////////////////////////////////////////////////////////////	149	/////////////////////////////////////////////////////////////////////////////
108	// encoder	150	// encoder
109		151
…		…
114	char *end; // SvEND (sv)	156	char *end; // SvEND (sv)
115	SV *sv; // result scalar	157	SV *sv; // result scalar
116	JSON json;	158	JSON json;
117	U32 indent; // indentation level	159	U32 indent; // indentation level
118	U32 maxdepth; // max. indentation/recursion level	160	U32 maxdepth; // max. indentation/recursion level
		161	UV limit; // escape character values >= this value when encoding
119	} enc_t;	162	} enc_t;
120		163
121	inline void	164	INLINE void
122	need (enc_t *enc, STRLEN len)	165	need (enc_t *enc, STRLEN len)
123	{	166	{
124	if (expect_false (enc->cur + len >= enc->end))	167	if (expect_false (enc->cur + len >= enc->end))
125	{	168	{
126	STRLEN cur = enc->cur - SvPVX (enc->sv);	169	STRLEN cur = enc->cur - SvPVX (enc->sv);
…		…
128	enc->cur = SvPVX (enc->sv) + cur;	171	enc->cur = SvPVX (enc->sv) + cur;
129	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	172	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
130	}	173	}
131	}	174	}
132		175
133	inline void	176	INLINE void
134	encode_ch (enc_t *enc, char ch)	177	encode_ch (enc_t *enc, char ch)
135	{	178	{
136	need (enc, 1);	179	need (enc, 1);
137	*enc->cur++ = ch;	180	*enc->cur++ = ch;
138	}	181	}
…		…
192	{	235	{
193	uch = ch;	236	uch = ch;
194	clen = 1;	237	clen = 1;
195	}	238	}
196		239
197	if (uch > 0x10FFFFUL)	240	if (uch < 0x80/0x20/ \|\| uch >= enc->limit)
198	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
199
200	if (uch < 0x80 \|\| enc->json.flags & F_ASCII \|\| (enc->json.flags & F_LATIN1 && uch > 0xFF))
201	{	241	{
202	if (uch > 0xFFFFUL)	242	if (uch >= 0x10000UL)
203	{	243	{
		244	if (uch >= 0x110000UL)
		245	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
		246
204	need (enc, len += 11);	247	need (enc, len += 11);
205	sprintf (enc->cur, "\\u%04x\\u%04x",	248	sprintf (enc->cur, "\\u%04x\\u%04x",
206	(int)((uch - 0x10000) / 0x400 + 0xD800),	249	(int)((uch - 0x10000) / 0x400 + 0xD800),
207	(int)((uch - 0x10000) % 0x400 + 0xDC00));	250	(int)((uch - 0x10000) % 0x400 + 0xDC00));
208	enc->cur += 12;	251	enc->cur += 12;
…		…
236	while (--clen);	279	while (--clen);
237	}	280	}
238	else	281	else
239	{	282	{
240	need (enc, len += UTF8_MAXBYTES - 1); // never more than 11 bytes needed	283	need (enc, len += UTF8_MAXBYTES - 1); // never more than 11 bytes needed
241	enc->cur = uvuni_to_utf8_flags (enc->cur, uch, 0);	284	enc->cur = encode_utf8 (enc->cur, uch);
242	++str;	285	++str;
243	}	286	}
244	}	287	}
245	}	288	}
246	}	289	}
247		290
248	--len;	291	--len;
249	}	292	}
250	}	293	}
251		294
252	inline void	295	INLINE void
253	encode_indent (enc_t *enc)	296	encode_indent (enc_t *enc)
254	{	297	{
255	if (enc->json.flags & F_INDENT)	298	if (enc->json.flags & F_INDENT)
256	{	299	{
257	int spaces = enc->indent * INDENT_STEP;	300	int spaces = enc->indent * INDENT_STEP;
…		…
260	memset (enc->cur, ' ', spaces);	303	memset (enc->cur, ' ', spaces);
261	enc->cur += spaces;	304	enc->cur += spaces;
262	}	305	}
263	}	306	}
264		307
265	inline void	308	INLINE void
266	encode_space (enc_t *enc)	309	encode_space (enc_t *enc)
267	{	310	{
268	need (enc, 1);	311	need (enc, 1);
269	encode_ch (enc, ' ');	312	encode_ch (enc, ' ');
270	}	313	}
271		314
272	inline void	315	INLINE void
273	encode_nl (enc_t *enc)	316	encode_nl (enc_t *enc)
274	{	317	{
275	if (enc->json.flags & F_INDENT)	318	if (enc->json.flags & F_INDENT)
276	{	319	{
277	need (enc, 1);	320	need (enc, 1);
278	encode_ch (enc, '\n');	321	encode_ch (enc, '\n');
279	}	322	}
280	}	323	}
281		324
282	inline void	325	INLINE void
283	encode_comma (enc_t *enc)	326	encode_comma (enc_t *enc)
284	{	327	{
285	encode_ch (enc, ',');	328	encode_ch (enc, ',');
286		329
287	if (enc->json.flags & F_INDENT)	330	if (enc->json.flags & F_INDENT)
…		…
298	int i, len = av_len (av);	341	int i, len = av_len (av);
299		342
300	if (enc->indent >= enc->maxdepth)	343	if (enc->indent >= enc->maxdepth)
301	croak ("data structure too deep (hit recursion limit)");	344	croak ("data structure too deep (hit recursion limit)");
302		345
303	encode_ch (enc, '['); encode_nl (enc);	346	encode_ch (enc, '[');
304	++enc->indent;	347
		348	if (len >= 0)
		349	{
		350	encode_nl (enc); ++enc->indent;
305		351
306	for (i = 0; i <= len; ++i)	352	for (i = 0; i <= len; ++i)
307	{	353	{
		354	SV **svp = av_fetch (av, i, 0);
		355
308	encode_indent (enc);	356	encode_indent (enc);
309	encode_sv (enc, *av_fetch (av, i, 0));
310		357
		358	if (svp)
		359	encode_sv (enc, *svp);
		360	else
		361	encode_str (enc, "null", 4, 0);
		362
311	if (i < len)	363	if (i < len)
312	encode_comma (enc);	364	encode_comma (enc);
313	}	365	}
314		366
		367	encode_nl (enc); --enc->indent; encode_indent (enc);
		368	}
		369
315	encode_nl (enc);	370	encode_ch (enc, ']');
316
317	--enc->indent;
318	encode_indent (enc); encode_ch (enc, ']');
319	}	371	}
320		372
321	static void	373	static void
322	encode_he (enc_t enc, HE he)	374	encode_hk (enc_t enc, HE he)
323	{	375	{
324	encode_ch (enc, '"');	376	encode_ch (enc, '"');
325		377
326	if (HeKLEN (he) == HEf_SVKEY)	378	if (HeKLEN (he) == HEf_SVKEY)
327	{	379	{
…		…
340	encode_ch (enc, '"');	392	encode_ch (enc, '"');
341		393
342	if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc);	394	if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc);
343	encode_ch (enc, ':');	395	encode_ch (enc, ':');
344	if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc);	396	if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc);
345	encode_sv (enc, HeVAL (he));
346	}	397	}
347		398
348	// compare hash entries, used when all keys are bytestrings	399	// compare hash entries, used when all keys are bytestrings
349	static int	400	static int
350	he_cmp_fast (const void a_, const void b_)	401	he_cmp_fast (const void a_, const void b_)
…		…
355	HE b = (HE **)b_;	406	HE b = (HE **)b_;
356		407
357	STRLEN la = HeKLEN (a);	408	STRLEN la = HeKLEN (a);
358	STRLEN lb = HeKLEN (b);	409	STRLEN lb = HeKLEN (b);
359		410
360	if (!(cmp = memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb)))	411	if (!(cmp = memcmp (HeKEY (b), HeKEY (a), lb < la ? lb : la)))
361	cmp = la - lb;	412	cmp = lb - la;
362		413
363	return cmp;	414	return cmp;
364	}	415	}
365		416
366	// compare hash entries, used when some keys are sv's or utf-x	417	// compare hash entries, used when some keys are sv's or utf-x
367	static int	418	static int
368	he_cmp_slow (const void a, const void b)	419	he_cmp_slow (const void a, const void b)
369	{	420	{
370	return sv_cmp (HeSVKEY_force ((HE )a), HeSVKEY_force ((HE **)b));	421	return sv_cmp (HeSVKEY_force ((HE )b), HeSVKEY_force ((HE **)a));
371	}	422	}
372		423
373	static void	424	static void
374	encode_hv (enc_t enc, HV hv)	425	encode_hv (enc_t enc, HV hv)
375	{	426	{
		427	HE *he;
376	int count, i;	428	int count;
377		429
378	if (enc->indent >= enc->maxdepth)	430	if (enc->indent >= enc->maxdepth)
379	croak ("data structure too deep (hit recursion limit)");	431	croak ("data structure too deep (hit recursion limit)");
380		432
381	encode_ch (enc, '{'); encode_nl (enc); ++enc->indent;	433	encode_ch (enc, '{');
382		434
383	if ((count = hv_iterinit (hv)))
384	{
385	// for canonical output we have to sort by keys first	435	// for canonical output we have to sort by keys first
386	// actually, this is mostly due to the stupid so-called	436	// actually, this is mostly due to the stupid so-called
387	// security workaround added somewhere in 5.8.x.	437	// security workaround added somewhere in 5.8.x.
388	// that randomises hash orderings	438	// that randomises hash orderings
389	if (enc->json.flags & F_CANONICAL)	439	if (enc->json.flags & F_CANONICAL)
		440	{
		441	int count = hv_iterinit (hv);
		442
		443	if (SvMAGICAL (hv))
390	{	444	{
		445	// need to count by iterating. could improve by dynamically building the vector below
		446	// but I don't care for the speed of this special case.
		447	// note also that we will run into undefined behaviour when the two iterations
		448	// do not result in the same count, something I might care for in some later release.
		449
		450	count = 0;
		451	while (hv_iternext (hv))
		452	++count;
		453
		454	hv_iterinit (hv);
		455	}
		456
		457	if (count)
		458	{
391	int fast = 1;	459	int i, fast = 1;
392	HE *he;
393	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	460	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
394	HE *hes = _alloca (count sizeof (HE));	461	HE *hes = _alloca (count sizeof (HE));
395	#else	462	#else
396	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode	463	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode
397	#endif	464	#endif
…		…
424		491
425	FREETMPS;	492	FREETMPS;
426	LEAVE;	493	LEAVE;
427	}	494	}
428		495
429	for (i = 0; i < count; ++i)	496	encode_nl (enc); ++enc->indent;
		497
		498	while (count--)
430	{	499	{
431	encode_indent (enc);	500	encode_indent (enc);
		501	he = hes [count];
432	encode_he (enc, hes [i]);	502	encode_hk (enc, he);
		503	encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he));
433		504
434	if (i < count - 1)	505	if (count)
435	encode_comma (enc);	506	encode_comma (enc);
436	}	507	}
437		508
438	encode_nl (enc);	509	encode_nl (enc); --enc->indent; encode_indent (enc);
439	}	510	}
		511	}
440	else	512	else
		513	{
		514	if (hv_iterinit (hv) \|\| SvMAGICAL (hv))
		515	if ((he = hv_iternext (hv)))
441	{	516	{
442	HE *he = hv_iternext (hv);	517	encode_nl (enc); ++enc->indent;
443		518
444	for (;;)	519	for (;;)
445	{	520	{
446	encode_indent (enc);	521	encode_indent (enc);
447	encode_he (enc, he);	522	encode_hk (enc, he);
		523	encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he));
448		524
449	if (!(he = hv_iternext (hv)))	525	if (!(he = hv_iternext (hv)))
450	break;	526	break;
451		527
452	encode_comma (enc);	528	encode_comma (enc);
453	}	529	}
454		530
455	encode_nl (enc);	531	encode_nl (enc); --enc->indent; encode_indent (enc);
456	}	532	}
457	}	533	}
458		534
459	--enc->indent; encode_indent (enc); encode_ch (enc, '}');	535	encode_ch (enc, '}');
460	}	536	}
461		537
462	// encode objects, arrays and special \0=false and \1=true values.	538	// encode objects, arrays and special \0=false and \1=true values.
463	static void	539	static void
464	encode_rv (enc_t enc, SV sv)	540	encode_rv (enc_t enc, SV sv)
…		…
468	SvGETMAGIC (sv);	544	SvGETMAGIC (sv);
469	svt = SvTYPE (sv);	545	svt = SvTYPE (sv);
470		546
471	if (expect_false (SvOBJECT (sv)))	547	if (expect_false (SvOBJECT (sv)))
472	{	548	{
		549	HV *stash = !JSON_SLOW \|\| json_boolean_stash
		550	? json_boolean_stash
		551	: gv_stashpv ("JSON::XS::Boolean", 1);
		552
473	if (SvSTASH (sv) == json_boolean_stash)	553	if (SvSTASH (sv) == stash)
474	{	554	{
475	if (SvIV (sv) == 0)	555	if (SvIV (sv))
		556	encode_str (enc, "true", 4, 0);
		557	else
476	encode_str (enc, "false", 5, 0);	558	encode_str (enc, "false", 5, 0);
477	else
478	encode_str (enc, "true", 4, 0);
479	}	559	}
480	else	560	else
481	{	561	{
482	#if 0	562	#if 0
483	if (0 && sv_derived_from (rv, "JSON::Literal"))	563	if (0 && sv_derived_from (rv, "JSON::Literal"))
…		…
486	}	566	}
487	#endif	567	#endif
488	if (enc->json.flags & F_CONV_BLESSED)	568	if (enc->json.flags & F_CONV_BLESSED)
489	{	569	{
490	// we re-bless the reference to get overload and other niceties right	570	// we re-bless the reference to get overload and other niceties right
491	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 1);	571	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0);
492		572
493	if (to_json)	573	if (to_json)
494	{	574	{
495	dSP;	575	dSP;
496	ENTER;	576
497	SAVETMPS;
498	PUSHMARK (SP);	577	ENTER; SAVETMPS; PUSHMARK (SP);
499	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));	578	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
500		579
501	// calling with G_SCALAR ensures that we always get a 1 reutrn value	580	// calling with G_SCALAR ensures that we always get a 1 return value
502	// check anyways.
503	PUTBACK;	581	PUTBACK;
504	assert (1 == call_sv ((SV *)GvCV (to_json), G_SCALAR));	582	call_sv ((SV *)GvCV (to_json), G_SCALAR);
505	SPAGAIN;	583	SPAGAIN;
506		584
		585	// catch this surprisingly common error
		586	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		587	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		588
		589	sv = POPs;
		590	PUTBACK;
		591
507	encode_sv (enc, POPs);	592	encode_sv (enc, sv);
508		593
509	FREETMPS;	594	FREETMPS; LEAVE;
510	LEAVE;
511	}	595	}
512	else if (enc->json.flags & F_ALLOW_BLESSED)	596	else if (enc->json.flags & F_ALLOW_BLESSED)
513	encode_str (enc, "null", 4, 0);	597	encode_str (enc, "null", 4, 0);
514	else	598	else
515	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",	599	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",
…		…
526	encode_hv (enc, (HV *)sv);	610	encode_hv (enc, (HV *)sv);
527	else if (svt == SVt_PVAV)	611	else if (svt == SVt_PVAV)
528	encode_av (enc, (AV *)sv);	612	encode_av (enc, (AV *)sv);
529	else if (svt < SVt_PVAV)	613	else if (svt < SVt_PVAV)
530	{	614	{
531	if (SvNIOK (sv) && SvIV (sv) == 0)	615	STRLEN len = 0;
		616	char *pv = svt ? SvPV (sv, len) : 0;
		617
		618	if (len == 1 && *pv == '1')
		619	encode_str (enc, "true", 4, 0);
		620	else if (len == 1 && *pv == '0')
532	encode_str (enc, "false", 5, 0);	621	encode_str (enc, "false", 5, 0);
533	else if (SvNIOK (sv) && SvIV (sv) == 1)
534	encode_str (enc, "true", 4, 0);
535	else	622	else
536	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",	623	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
537	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	624	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
538	}	625	}
539	else	626	else
…		…
561	Gconvert (SvNVX (sv), NV_DIG, 0, enc->cur);	648	Gconvert (SvNVX (sv), NV_DIG, 0, enc->cur);
562	enc->cur += strlen (enc->cur);	649	enc->cur += strlen (enc->cur);
563	}	650	}
564	else if (SvIOKp (sv))	651	else if (SvIOKp (sv))
565	{	652	{
566	// we assume we can always read an IV as a UV	653	// we assume we can always read an IV as a UV and vice versa
567	if (SvUV (sv) & ~(UV)0x7fff)	654	// we assume two's complement
568	{	655	// we assume no aliasing issues in the union
569	// large integer, use the (rather slow) snprintf way.	656	if (SvIsUV (sv) ? SvUVX (sv) <= 59000
570	need (enc, sizeof (UV) * 3);	657	: SvIVX (sv) <= 59000 && SvIVX (sv) >= -59000)
571	enc->cur +=
572	SvIsUV(sv)
573	? snprintf (enc->cur, sizeof (UV) * 3, "%"UVuf, (UV)SvUVX (sv))
574	: snprintf (enc->cur, sizeof (UV) * 3, "%"IVdf, (IV)SvIVX (sv));
575	}
576	else
577	{	658	{
578	// optimise the "small number case"	659	// optimise the "small number case"
579	// code will likely be branchless and use only a single multiplication	660	// code will likely be branchless and use only a single multiplication
		661	// works for numbers up to 59074
580	I32 i = SvIV (sv);	662	I32 i = SvIVX (sv);
581	U32 u;	663	U32 u;
582	char digit, nz = 0;	664	char digit, nz = 0;
583		665
584	need (enc, 6);	666	need (enc, 6);
585		667
…		…
591		673
592	// now output digit by digit, each time masking out the integer part	674	// now output digit by digit, each time masking out the integer part
593	// and multiplying by 5 while moving the decimal point one to the right,	675	// and multiplying by 5 while moving the decimal point one to the right,
594	// resulting in a net multiplication by 10.	676	// resulting in a net multiplication by 10.
595	// we always write the digit to memory but conditionally increment	677	// we always write the digit to memory but conditionally increment
596	// the pointer, to ease the usage of conditional move instructions.	678	// the pointer, to enable the use of conditional move instructions.
597	digit = u >> 28; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0xfffffff) 5;	679	digit = u >> 28; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0xfffffffUL) 5;
598	digit = u >> 27; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x7ffffff) 5;	680	digit = u >> 27; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x7ffffffUL) 5;
599	digit = u >> 26; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x3ffffff) 5;	681	digit = u >> 26; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x3ffffffUL) 5;
600	digit = u >> 25; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x1ffffff) 5;	682	digit = u >> 25; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x1ffffffUL) 5;
601	digit = u >> 24; *enc->cur = digit + '0'; enc->cur += 1; // correctly generate '0'	683	digit = u >> 24; *enc->cur = digit + '0'; enc->cur += 1; // correctly generate '0'
		684	}
		685	else
		686	{
		687	// large integer, use the (rather slow) snprintf way.
		688	need (enc, IVUV_MAXCHARS);
		689	enc->cur +=
		690	SvIsUV(sv)
		691	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))
		692	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));
602	}	693	}
603	}	694	}
604	else if (SvROK (sv))	695	else if (SvROK (sv))
605	encode_rv (enc, SvRV (sv));	696	encode_rv (enc, SvRV (sv));
606	else if (!SvOK (sv))	697	else if (!SvOK (sv))
…		…
622	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	713	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
623	enc.cur = SvPVX (enc.sv);	714	enc.cur = SvPVX (enc.sv);
624	enc.end = SvEND (enc.sv);	715	enc.end = SvEND (enc.sv);
625	enc.indent = 0;	716	enc.indent = 0;
626	enc.maxdepth = DEC_DEPTH (enc.json.flags);	717	enc.maxdepth = DEC_DEPTH (enc.json.flags);
		718	enc.limit = enc.json.flags & F_ASCII ? 0x000080UL
		719	: enc.json.flags & F_LATIN1 ? 0x000100UL
		720	: 0x110000UL;
627		721
628	SvPOK_only (enc.sv);	722	SvPOK_only (enc.sv);
629	encode_sv (&enc, scalar);	723	encode_sv (&enc, scalar);
630		724
631	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	725	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
…		…
652	JSON json;	746	JSON json;
653	U32 depth; // recursion depth	747	U32 depth; // recursion depth
654	U32 maxdepth; // recursion depth limit	748	U32 maxdepth; // recursion depth limit
655	} dec_t;	749	} dec_t;
656		750
657	inline void	751	INLINE void
		752	decode_comment (dec_t *dec)
		753	{
		754	// only '#'-style comments allowed a.t.m.
		755
		756	while (dec->cur && dec->cur != 0x0a && *dec->cur != 0x0d)
		757	++dec->cur;
		758	}
		759
		760	INLINE void
658	decode_ws (dec_t *dec)	761	decode_ws (dec_t *dec)
659	{	762	{
660	for (;;)	763	for (;;)
661	{	764	{
662	char ch = *dec->cur;	765	char ch = *dec->cur;
663		766
664	if (ch > 0x20	767	if (ch > 0x20)
		768	{
		769	if (expect_false (ch == '#'))
		770	{
		771	if (dec->json.flags & F_RELAXED)
		772	decode_comment (dec);
		773	else
		774	break;
		775	}
		776	else
		777	break;
		778	}
665	\|\| (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09))	779	else if (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09)
666	break;	780	break; // parse error, but let higher level handle it, gives better error messages
667		781
668	++dec->cur;	782	++dec->cur;
669	}	783	}
670	}	784	}
671		785
…		…
777		891
778	if (hi >= 0x80)	892	if (hi >= 0x80)
779	{	893	{
780	utf8 = 1;	894	utf8 = 1;
781		895
782	cur = (char *)uvuni_to_utf8_flags (cur, hi, 0);	896	cur = encode_utf8 (cur, hi);
783	}	897	}
784	else	898	else
785	*cur++ = hi;	899	*cur++ = hi;
786	}	900	}
787	break;	901	break;
…		…
789	default:	903	default:
790	--dec_cur;	904	--dec_cur;
791	ERR ("illegal backslash escape sequence in string");	905	ERR ("illegal backslash escape sequence in string");
792	}	906	}
793	}	907	}
794	else if (expect_true (ch >= 0x20 && ch <= 0x7f))	908	else if (expect_true (ch >= 0x20 && ch < 0x80))
795	*cur++ = ch;	909	*cur++ = ch;
796	else if (ch >= 0x80)	910	else if (ch >= 0x80)
797	{	911	{
798	STRLEN clen;	912	STRLEN clen;
799	UV uch;	913	UV uch;
…		…
920	is_nv = 1;	1034	is_nv = 1;
921	}	1035	}
922		1036
923	if (!is_nv)	1037	if (!is_nv)
924	{	1038	{
		1039	int len = dec->cur - start;
		1040
925	// special case the rather common 1..4-digit-int case, assumes 32 bit ints or so	1041	// special case the rather common 1..5-digit-int case
926	if (*start == '-')	1042	if (*start == '-')
927	switch (dec->cur - start)	1043	switch (len)
928	{	1044	{
929	case 2: return newSViv (-( start [1] - '0' * 1));	1045	case 2: return newSViv (-( start [1] - '0' * 1));
930	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));	1046	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));
931	case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));	1047	case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));
932	case 5: return newSViv (-(start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));	1048	case 5: return newSViv (-( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));
		1049	case 6: return newSViv (-(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111));
933	}	1050	}
934	else	1051	else
935	switch (dec->cur - start)	1052	switch (len)
936	{	1053	{
937	case 1: return newSViv ( start [0] - '0' * 1);	1054	case 1: return newSViv ( start [0] - '0' * 1);
938	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);	1055	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);
939	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);	1056	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);
940	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);	1057	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);
		1058	case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111);
941	}	1059	}
942		1060
943	{	1061	{
944	UV uv;	1062	UV uv;
945	int numtype = grok_number (start, dec->cur - start, &uv);	1063	int numtype = grok_number (start, len, &uv);
946	if (numtype & IS_NUMBER_IN_UV)	1064	if (numtype & IS_NUMBER_IN_UV)
947	if (numtype & IS_NUMBER_NEG)	1065	if (numtype & IS_NUMBER_NEG)
948	{	1066	{
949	if (uv < (UV)IV_MIN)	1067	if (uv < (UV)IV_MIN)
950	return newSViv (-(IV)uv);	1068	return newSViv (-(IV)uv);
951	}	1069	}
952	else	1070	else
953	return newSVuv (uv);	1071	return newSVuv (uv);
954
955	// here would likely be the place for bigint support
956	}	1072	}
957	}
958		1073
959	// if we ever support bigint or bigfloat, this is the place for bigfloat	1074	len -= *start == '-' ? 1 : 0;
		1075
		1076	// does not fit into IV or UV, try NV
		1077	if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len)
		1078	#if defined (LDBL_DIG)
		1079	\|\| (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len)
		1080	#endif
		1081	)
		1082	// fits into NV without loss of precision
		1083	return newSVnv (Atof (start));
		1084
		1085	// everything else fails, convert it to a string
		1086	return newSVpvn (start, dec->cur - start);
		1087	}
		1088
		1089	// loss of precision here
960	return newSVnv (Atof (start));	1090	return newSVnv (Atof (start));
961		1091
962	fail:	1092	fail:
963	return 0;	1093	return 0;
964	}	1094	}
…		…
994		1124
995	if (*dec->cur != ',')	1125	if (*dec->cur != ',')
996	ERR (", or ] expected while parsing array");	1126	ERR (", or ] expected while parsing array");
997		1127
998	++dec->cur;	1128	++dec->cur;
		1129
		1130	decode_ws (dec);
		1131
		1132	if (*dec->cur == ']' && dec->json.flags & F_RELAXED)
		1133	{
		1134	++dec->cur;
		1135	break;
		1136	}
999	}	1137	}
1000		1138
1001	DEC_DEC_DEPTH;	1139	DEC_DEC_DEPTH;
1002	return newRV_noinc ((SV *)av);	1140	return newRV_noinc ((SV *)av);
1003		1141
…		…
1008	}	1146	}
1009		1147
1010	static SV *	1148	static SV *
1011	decode_hv (dec_t *dec)	1149	decode_hv (dec_t *dec)
1012	{	1150	{
		1151	SV *sv;
1013	HV *hv = newHV ();	1152	HV *hv = newHV ();
1014		1153
1015	DEC_INC_DEPTH;	1154	DEC_INC_DEPTH;
1016	decode_ws (dec);	1155	decode_ws (dec);
1017		1156
1018	if (*dec->cur == '}')	1157	if (*dec->cur == '}')
1019	++dec->cur;	1158	++dec->cur;
1020	else	1159	else
1021	for (;;)	1160	for (;;)
1022	{	1161	{
1023	decode_ws (dec); EXPECT_CH ('"');	1162	EXPECT_CH ('"');
1024		1163
1025	// heuristic: assume that	1164	// heuristic: assume that
1026	// a) decode_str + hv_store_ent are abysmally slow.	1165	// a) decode_str + hv_store_ent are abysmally slow.
1027	// b) most hash keys are short, simple ascii text.	1166	// b) most hash keys are short, simple ascii text.
1028	// => try to "fast-match" such strings to avoid	1167	// => try to "fast-match" such strings to avoid
…		…
1042	if (!key)	1181	if (!key)
1043	goto fail;	1182	goto fail;
1044		1183
1045	decode_ws (dec); EXPECT_CH (':');	1184	decode_ws (dec); EXPECT_CH (':');
1046		1185
		1186	decode_ws (dec);
1047	value = decode_sv (dec);	1187	value = decode_sv (dec);
1048	if (!value)	1188	if (!value)
1049	{	1189	{
1050	SvREFCNT_dec (key);	1190	SvREFCNT_dec (key);
1051	goto fail;	1191	goto fail;
…		…
1063	int len = p - key;	1203	int len = p - key;
1064	dec->cur = p + 1;	1204	dec->cur = p + 1;
1065		1205
1066	decode_ws (dec); EXPECT_CH (':');	1206	decode_ws (dec); EXPECT_CH (':');
1067		1207
		1208	decode_ws (dec);
1068	value = decode_sv (dec);	1209	value = decode_sv (dec);
1069	if (!value)	1210	if (!value)
1070	goto fail;	1211	goto fail;
1071		1212
1072	hv_store (hv, key, len, value, 0);	1213	hv_store (hv, key, len, value, 0);
…		…
1088		1229
1089	if (*dec->cur != ',')	1230	if (*dec->cur != ',')
1090	ERR (", or } expected while parsing object/hash");	1231	ERR (", or } expected while parsing object/hash");
1091		1232
1092	++dec->cur;	1233	++dec->cur;
		1234
		1235	decode_ws (dec);
		1236
		1237	if (*dec->cur == '}' && dec->json.flags & F_RELAXED)
		1238	{
		1239	++dec->cur;
		1240	break;
		1241	}
1093	}	1242	}
1094		1243
1095	DEC_DEC_DEPTH;	1244	DEC_DEC_DEPTH;
1096	return newRV_noinc ((SV *)hv);	1245	sv = newRV_noinc ((SV *)hv);
		1246
		1247	// check filter callbacks
		1248	if (dec->json.flags & F_HOOK)
		1249	{
		1250	if (dec->json.cb_sk_object && HvKEYS (hv) == 1)
		1251	{
		1252	HE cb, he;
		1253
		1254	hv_iterinit (hv);
		1255	he = hv_iternext (hv);
		1256	hv_iterinit (hv);
		1257
		1258	// the next line creates a mortal sv each time its called.
		1259	// might want to optimise this for common cases.
		1260	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);
		1261
		1262	if (cb)
		1263	{
		1264	dSP;
		1265	int count;
		1266
		1267	ENTER; SAVETMPS; PUSHMARK (SP);
		1268	XPUSHs (HeVAL (he));
		1269
		1270	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;
		1271
		1272	if (count == 1)
		1273	{
		1274	sv = newSVsv (POPs);
		1275	FREETMPS; LEAVE;
		1276	return sv;
		1277	}
		1278
		1279	FREETMPS; LEAVE;
		1280	}
		1281	}
		1282
		1283	if (dec->json.cb_object)
		1284	{
		1285	dSP;
		1286	int count;
		1287
		1288	ENTER; SAVETMPS; PUSHMARK (SP);
		1289	XPUSHs (sv_2mortal (sv));
		1290
		1291	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;
		1292
		1293	if (count == 1)
		1294	{
		1295	sv = newSVsv (POPs);
		1296	FREETMPS; LEAVE;
		1297	return sv;
		1298	}
		1299
		1300	SvREFCNT_inc (sv);
		1301	FREETMPS; LEAVE;
		1302	}
		1303	}
		1304
		1305	return sv;
1097		1306
1098	fail:	1307	fail:
1099	SvREFCNT_dec (hv);	1308	SvREFCNT_dec (hv);
1100	DEC_DEC_DEPTH;	1309	DEC_DEC_DEPTH;
1101	return 0;	1310	return 0;
1102	}	1311	}
1103		1312
1104	static SV *	1313	static SV *
1105	decode_sv (dec_t *dec)	1314	decode_sv (dec_t *dec)
1106	{	1315	{
1107	decode_ws (dec);
1108
1109	// the beauty of JSON: you need exactly one character lookahead	1316	// the beauty of JSON: you need exactly one character lookahead
1110	// to parse anything.	1317	// to parse everything.
1111	switch (*dec->cur)	1318	switch (*dec->cur)
1112	{	1319	{
1113	case '"': ++dec->cur; return decode_str (dec);	1320	case '"': ++dec->cur; return decode_str (dec);
1114	case '[': ++dec->cur; return decode_av (dec);	1321	case '[': ++dec->cur; return decode_av (dec);
1115	case '{': ++dec->cur; return decode_hv (dec);	1322	case '{': ++dec->cur; return decode_hv (dec);
1116		1323
1117	case '-':	1324	case '-':
1118	case '0': case '1': case '2': case '3': case '4':	1325	case '0': case '1': case '2': case '3': case '4':
1119	case '5': case '6': case '7': case '8': case '9':	1326	case '5': case '6': case '7': case '8': case '9':
1120	return decode_num (dec);	1327	return decode_num (dec);
1121		1328
1122	case 't':	1329	case 't':
1123	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1330	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1124	{	1331	{
1125	dec->cur += 4;	1332	dec->cur += 4;
		1333	#if JSON_SLOW
		1334	json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true);
		1335	#endif
1126	return SvREFCNT_inc (json_true);	1336	return SvREFCNT_inc (json_true);
1127	}	1337	}
1128	else	1338	else
1129	ERR ("'true' expected");	1339	ERR ("'true' expected");
1130		1340
…		…
1132		1342
1133	case 'f':	1343	case 'f':
1134	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))	1344	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1135	{	1345	{
1136	dec->cur += 5;	1346	dec->cur += 5;
		1347	#if JSON_SLOW
		1348	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
		1349	#endif
1137	return SvREFCNT_inc (json_false);	1350	return SvREFCNT_inc (json_false);
1138	}	1351	}
1139	else	1352	else
1140	ERR ("'false' expected");	1353	ERR ("'false' expected");
1141		1354
…		…
1187	dec.end = SvEND (string);	1400	dec.end = SvEND (string);
1188	dec.err = 0;	1401	dec.err = 0;
1189	dec.depth = 0;	1402	dec.depth = 0;
1190	dec.maxdepth = DEC_DEPTH (dec.json.flags);	1403	dec.maxdepth = DEC_DEPTH (dec.json.flags);
1191		1404
		1405	if (dec.json.cb_object \|\| dec.json.cb_sk_object)
		1406	dec.json.flags \|= F_HOOK;
		1407
1192	*dec.end = 0; // this should basically be a nop, too, but make sure it's there	1408	*dec.end = 0; // this should basically be a nop, too, but make sure it's there
		1409
		1410	decode_ws (&dec);
1193	sv = decode_sv (&dec);	1411	sv = decode_sv (&dec);
1194		1412
1195	if (!(offset_return \|\| !sv))	1413	if (!(offset_return \|\| !sv))
1196	{	1414	{
1197	// check for trailing garbage	1415	// check for trailing garbage
…		…
1265	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);	1483	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
1266	}	1484	}
1267		1485
1268	PROTOTYPES: DISABLE	1486	PROTOTYPES: DISABLE
1269		1487
		1488	void CLONE (...)
		1489	CODE:
		1490	json_stash = 0;
		1491	json_boolean_stash = 0;
		1492
1270	void new (char *klass)	1493	void new (char *klass)
1271	PPCODE:	1494	PPCODE:
1272	{	1495	{
1273	SV *pv = NEWSV (0, sizeof (JSON));	1496	SV *pv = NEWSV (0, sizeof (JSON));
1274	SvPOK_only (pv);	1497	SvPOK_only (pv);
1275	Zero (SvPVX (pv), 1, sizeof (JSON));	1498	Zero (SvPVX (pv), 1, JSON);
1276	((JSON *)SvPVX (pv))->flags = F_DEFAULT;	1499	((JSON *)SvPVX (pv))->flags = F_DEFAULT;
1277	XPUSHs (sv_2mortal (sv_bless (newRV_noinc (pv), json_stash)));	1500	XPUSHs (sv_2mortal (sv_bless (
		1501	newRV_noinc (pv),
		1502	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)
		1503	)));
1278	}	1504	}
1279		1505
1280	void ascii (JSON *self, int enable = 1)	1506	void ascii (JSON *self, int enable = 1)
1281	ALIAS:	1507	ALIAS:
1282	ascii = F_ASCII	1508	ascii = F_ASCII
…		…
1289	pretty = F_PRETTY	1515	pretty = F_PRETTY
1290	allow_nonref = F_ALLOW_NONREF	1516	allow_nonref = F_ALLOW_NONREF
1291	shrink = F_SHRINK	1517	shrink = F_SHRINK
1292	allow_blessed = F_ALLOW_BLESSED	1518	allow_blessed = F_ALLOW_BLESSED
1293	convert_blessed = F_CONV_BLESSED	1519	convert_blessed = F_CONV_BLESSED
		1520	relaxed = F_RELAXED
1294	PPCODE:	1521	PPCODE:
1295	{	1522	{
1296	if (enable)	1523	if (enable)
1297	self->flags \|= ix;	1524	self->flags \|= ix;
1298	else	1525	else
1299	self->flags &= ~ix;	1526	self->flags &= ~ix;
1300		1527
1301	XPUSHs (ST (0));	1528	XPUSHs (ST (0));
1302	}	1529	}
1303		1530
		1531	void get_ascii (JSON *self)
		1532	ALIAS:
		1533	get_ascii = F_ASCII
		1534	get_latin1 = F_LATIN1
		1535	get_utf8 = F_UTF8
		1536	get_indent = F_INDENT
		1537	get_canonical = F_CANONICAL
		1538	get_space_before = F_SPACE_BEFORE
		1539	get_space_after = F_SPACE_AFTER
		1540	get_allow_nonref = F_ALLOW_NONREF
		1541	get_shrink = F_SHRINK
		1542	get_allow_blessed = F_ALLOW_BLESSED
		1543	get_convert_blessed = F_CONV_BLESSED
		1544	get_relaxed = F_RELAXED
		1545	PPCODE:
		1546	XPUSHs (boolSV (self->flags & ix));
		1547
1304	void max_depth (JSON *self, UV max_depth = 0x80000000UL)	1548	void max_depth (JSON *self, UV max_depth = 0x80000000UL)
1305	PPCODE:	1549	PPCODE:
1306	{	1550	{
1307	UV log2 = 0;	1551	UV log2 = 0;
1308		1552
…		…
1314	self->flags = self->flags & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);	1558	self->flags = self->flags & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
1315		1559
1316	XPUSHs (ST (0));	1560	XPUSHs (ST (0));
1317	}	1561	}
1318		1562
		1563	U32 get_max_depth (JSON *self)
		1564	CODE:
		1565	RETVAL = DEC_DEPTH (self->flags);
		1566	OUTPUT:
		1567	RETVAL
		1568
1319	void max_size (JSON *self, UV max_size = 0)	1569	void max_size (JSON *self, UV max_size = 0)
1320	PPCODE:	1570	PPCODE:
1321	{	1571	{
1322	UV log2 = 0;	1572	UV log2 = 0;
1323		1573
…		…
1326		1576
1327	while ((1UL << log2) < max_size)	1577	while ((1UL << log2) < max_size)
1328	++log2;	1578	++log2;
1329		1579
1330	self->flags = self->flags & ~F_MAXSIZE \| (log2 << S_MAXSIZE);	1580	self->flags = self->flags & ~F_MAXSIZE \| (log2 << S_MAXSIZE);
		1581
		1582	XPUSHs (ST (0));
		1583	}
		1584
		1585	int get_max_size (JSON *self)
		1586	CODE:
		1587	RETVAL = DEC_SIZE (self->flags);
		1588	OUTPUT:
		1589	RETVAL
		1590
		1591	void filter_json_object (JSON self, SV cb = &PL_sv_undef)
		1592	PPCODE:
		1593	{
		1594	SvREFCNT_dec (self->cb_object);
		1595	self->cb_object = SvOK (cb) ? newSVsv (cb) : 0;
		1596
		1597	XPUSHs (ST (0));
		1598	}
		1599
		1600	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)
		1601	PPCODE:
		1602	{
		1603	if (!self->cb_sk_object)
		1604	self->cb_sk_object = newHV ();
		1605
		1606	if (SvOK (cb))
		1607	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
		1608	else
		1609	{
		1610	hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0);
		1611
		1612	if (!HvKEYS (self->cb_sk_object))
		1613	{
		1614	SvREFCNT_dec (self->cb_sk_object);
		1615	self->cb_sk_object = 0;
		1616	}
		1617	}
1331		1618
1332	XPUSHs (ST (0));	1619	XPUSHs (ST (0));
1333	}	1620	}
1334		1621
1335	void encode (JSON self, SV scalar)	1622	void encode (JSON self, SV scalar)
…		…
1347	EXTEND (SP, 2);	1634	EXTEND (SP, 2);
1348	PUSHs (decode_json (jsonstr, self, &offset));	1635	PUSHs (decode_json (jsonstr, self, &offset));
1349	PUSHs (sv_2mortal (newSVuv (offset)));	1636	PUSHs (sv_2mortal (newSVuv (offset)));
1350	}	1637	}
1351		1638
		1639	void DESTROY (JSON *self)
		1640	CODE:
		1641	SvREFCNT_dec (self->cb_sk_object);
		1642	SvREFCNT_dec (self->cb_object);
		1643
1352	PROTOTYPES: ENABLE	1644	PROTOTYPES: ENABLE
1353		1645
1354	void to_json (SV *scalar)	1646	void encode_json (SV *scalar)
		1647	ALIAS:
		1648	to_json_ = 0
		1649	encode_json = F_UTF8
1355	PPCODE:	1650	PPCODE:
1356	{	1651	{
1357	JSON json = { F_DEFAULT \| F_UTF8 };	1652	JSON json = { F_DEFAULT \| ix };
1358	XPUSHs (encode_json (scalar, &json));	1653	XPUSHs (encode_json (scalar, &json));
1359	}	1654	}
1360		1655
1361	void from_json (SV *jsonstr)	1656	void decode_json (SV *jsonstr)
		1657	ALIAS:
		1658	from_json_ = 0
		1659	decode_json = F_UTF8
1362	PPCODE:	1660	PPCODE:
1363	{	1661	{
1364	JSON json = { F_DEFAULT \| F_UTF8 };	1662	JSON json = { F_DEFAULT \| ix };
1365	XPUSHs (decode_json (jsonstr, &json, 0));	1663	XPUSHs (decode_json (jsonstr, &json, 0));
1366	}	1664	}
1367		1665

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Comparing JSON-XS/XS.xs (file contents): Revision 1.48 by root, Sun Jul 1 22:20:00 2007 UTC vs. Revision 1.76 by root, Thu Mar 20 00:56:37 2008 UTC

Diff Legend

Comparing JSON-XS/XS.xs (file contents):
Revision 1.48 by root, Sun Jul 1 22:20:00 2007 UTC vs.
Revision 1.76 by root, Thu Mar 20 00:56:37 2008 UTC