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> |
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|
9 | #include <float.h> |
9 | |
10 | |
10 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
11 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
11 | # define snprintf _snprintf // C compilers have this in stdio.h |
12 | # define snprintf _snprintf // C compilers have this in stdio.h |
12 | #endif |
13 | #endif |
13 | |
14 | |
… | |
… | |
26 | #define F_SPACE_AFTER 0x00000040UL |
27 | #define F_SPACE_AFTER 0x00000040UL |
27 | #define F_ALLOW_NONREF 0x00000100UL |
28 | #define F_ALLOW_NONREF 0x00000100UL |
28 | #define F_SHRINK 0x00000200UL |
29 | #define F_SHRINK 0x00000200UL |
29 | #define F_ALLOW_BLESSED 0x00000400UL |
30 | #define F_ALLOW_BLESSED 0x00000400UL |
30 | #define F_CONV_BLESSED 0x00000800UL |
31 | #define F_CONV_BLESSED 0x00000800UL |
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32 | #define F_RELAXED 0x00001000UL |
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33 | |
31 | #define F_MAXDEPTH 0xf8000000UL |
34 | #define F_MAXDEPTH 0xf8000000UL |
32 | #define S_MAXDEPTH 27 |
35 | #define S_MAXDEPTH 27 |
33 | #define F_MAXSIZE 0x01f00000UL |
36 | #define F_MAXSIZE 0x01f00000UL |
34 | #define S_MAXSIZE 20 |
37 | #define S_MAXSIZE 20 |
35 | #define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing |
38 | #define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing |
… | |
… | |
57 | #endif |
60 | #endif |
58 | |
61 | |
59 | #define expect_false(expr) expect ((expr) != 0, 0) |
62 | #define expect_false(expr) expect ((expr) != 0, 0) |
60 | #define expect_true(expr) expect ((expr) != 0, 1) |
63 | #define expect_true(expr) expect ((expr) != 0, 1) |
61 | |
64 | |
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65 | #ifdef USE_ITHREADS |
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66 | # define JSON_SLOW 1 |
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67 | # define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1)) |
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68 | #else |
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69 | # define JSON_SLOW 0 |
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70 | # define JSON_STASH json_stash |
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71 | #endif |
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72 | |
62 | static HV *json_stash, *json_boolean_stash; // JSON::XS:: |
73 | static HV *json_stash, *json_boolean_stash; // JSON::XS:: |
63 | static SV *json_true, *json_false; |
74 | static SV *json_true, *json_false; |
64 | |
75 | |
65 | typedef struct { |
76 | typedef struct { |
66 | U32 flags; |
77 | U32 flags; |
67 | SV *cb_object, *cb_sk_object; |
78 | SV *cb_object; |
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|
79 | HV *cb_sk_object; |
68 | } JSON; |
80 | } JSON; |
69 | |
81 | |
70 | ///////////////////////////////////////////////////////////////////////////// |
82 | ///////////////////////////////////////////////////////////////////////////// |
71 | // utility functions |
83 | // utility functions |
72 | |
84 | |
… | |
… | |
305 | encode_ch (enc, '['); encode_nl (enc); |
317 | encode_ch (enc, '['); encode_nl (enc); |
306 | ++enc->indent; |
318 | ++enc->indent; |
307 | |
319 | |
308 | for (i = 0; i <= len; ++i) |
320 | for (i = 0; i <= len; ++i) |
309 | { |
321 | { |
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322 | SV **svp = av_fetch (av, i, 0); |
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323 | |
310 | encode_indent (enc); |
324 | encode_indent (enc); |
311 | encode_sv (enc, *av_fetch (av, i, 0)); |
325 | |
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326 | if (svp) |
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327 | encode_sv (enc, *svp); |
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328 | else |
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329 | encode_str (enc, "null", 4, 0); |
312 | |
330 | |
313 | if (i < len) |
331 | if (i < len) |
314 | encode_comma (enc); |
332 | encode_comma (enc); |
315 | } |
333 | } |
316 | |
334 | |
… | |
… | |
319 | --enc->indent; |
337 | --enc->indent; |
320 | encode_indent (enc); encode_ch (enc, ']'); |
338 | encode_indent (enc); encode_ch (enc, ']'); |
321 | } |
339 | } |
322 | |
340 | |
323 | static void |
341 | static void |
324 | encode_he (enc_t *enc, HE *he) |
342 | encode_hk (enc_t *enc, HE *he) |
325 | { |
343 | { |
326 | encode_ch (enc, '"'); |
344 | encode_ch (enc, '"'); |
327 | |
345 | |
328 | if (HeKLEN (he) == HEf_SVKEY) |
346 | if (HeKLEN (he) == HEf_SVKEY) |
329 | { |
347 | { |
… | |
… | |
342 | encode_ch (enc, '"'); |
360 | encode_ch (enc, '"'); |
343 | |
361 | |
344 | if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc); |
362 | if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc); |
345 | encode_ch (enc, ':'); |
363 | encode_ch (enc, ':'); |
346 | if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc); |
364 | if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc); |
347 | encode_sv (enc, HeVAL (he)); |
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348 | } |
365 | } |
349 | |
366 | |
350 | // compare hash entries, used when all keys are bytestrings |
367 | // compare hash entries, used when all keys are bytestrings |
351 | static int |
368 | static int |
352 | he_cmp_fast (const void *a_, const void *b_) |
369 | he_cmp_fast (const void *a_, const void *b_) |
… | |
… | |
357 | HE *b = *(HE **)b_; |
374 | HE *b = *(HE **)b_; |
358 | |
375 | |
359 | STRLEN la = HeKLEN (a); |
376 | STRLEN la = HeKLEN (a); |
360 | STRLEN lb = HeKLEN (b); |
377 | STRLEN lb = HeKLEN (b); |
361 | |
378 | |
362 | if (!(cmp = memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb))) |
379 | if (!(cmp = memcmp (HeKEY (b), HeKEY (a), lb < la ? lb : la))) |
363 | cmp = la - lb; |
380 | cmp = lb - la; |
364 | |
381 | |
365 | return cmp; |
382 | return cmp; |
366 | } |
383 | } |
367 | |
384 | |
368 | // compare hash entries, used when some keys are sv's or utf-x |
385 | // compare hash entries, used when some keys are sv's or utf-x |
369 | static int |
386 | static int |
370 | he_cmp_slow (const void *a, const void *b) |
387 | he_cmp_slow (const void *a, const void *b) |
371 | { |
388 | { |
372 | return sv_cmp (HeSVKEY_force (*(HE **)a), HeSVKEY_force (*(HE **)b)); |
389 | return sv_cmp (HeSVKEY_force (*(HE **)b), HeSVKEY_force (*(HE **)a)); |
373 | } |
390 | } |
374 | |
391 | |
375 | static void |
392 | static void |
376 | encode_hv (enc_t *enc, HV *hv) |
393 | encode_hv (enc_t *enc, HV *hv) |
377 | { |
394 | { |
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395 | HE *he; |
378 | int count, i; |
396 | int count; |
379 | |
397 | |
380 | if (enc->indent >= enc->maxdepth) |
398 | if (enc->indent >= enc->maxdepth) |
381 | croak ("data structure too deep (hit recursion limit)"); |
399 | croak ("data structure too deep (hit recursion limit)"); |
382 | |
400 | |
383 | encode_ch (enc, '{'); encode_nl (enc); ++enc->indent; |
401 | encode_ch (enc, '{'); encode_nl (enc); ++enc->indent; |
384 | |
402 | |
385 | if ((count = hv_iterinit (hv))) |
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386 | { |
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387 | // for canonical output we have to sort by keys first |
403 | // for canonical output we have to sort by keys first |
388 | // actually, this is mostly due to the stupid so-called |
404 | // actually, this is mostly due to the stupid so-called |
389 | // security workaround added somewhere in 5.8.x. |
405 | // security workaround added somewhere in 5.8.x. |
390 | // that randomises hash orderings |
406 | // that randomises hash orderings |
391 | if (enc->json.flags & F_CANONICAL) |
407 | if (enc->json.flags & F_CANONICAL) |
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408 | { |
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409 | int count = hv_iterinit (hv); |
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410 | |
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411 | if (SvMAGICAL (hv)) |
392 | { |
412 | { |
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413 | // need to count by iterating. could improve by dynamically building the vector below |
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414 | // but I don't care for the speed of this special case. |
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415 | // note also that we will run into undefined behaviour when the two iterations |
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416 | // do not result in the same count, something I might care for in some later release. |
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417 | |
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418 | count = 0; |
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419 | while (hv_iternext (hv)) |
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420 | ++count; |
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421 | |
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422 | hv_iterinit (hv); |
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423 | } |
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424 | |
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425 | if (count) |
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426 | { |
393 | int fast = 1; |
427 | int i, fast = 1; |
394 | HE *he; |
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395 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
428 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
396 | HE **hes = _alloca (count * sizeof (HE)); |
429 | HE **hes = _alloca (count * sizeof (HE)); |
397 | #else |
430 | #else |
398 | HE *hes [count]; // if your compiler dies here, you need to enable C99 mode |
431 | HE *hes [count]; // if your compiler dies here, you need to enable C99 mode |
399 | #endif |
432 | #endif |
… | |
… | |
426 | |
459 | |
427 | FREETMPS; |
460 | FREETMPS; |
428 | LEAVE; |
461 | LEAVE; |
429 | } |
462 | } |
430 | |
463 | |
431 | for (i = 0; i < count; ++i) |
464 | while (count--) |
432 | { |
465 | { |
433 | encode_indent (enc); |
466 | encode_indent (enc); |
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467 | he = hes [count]; |
434 | encode_he (enc, hes [i]); |
468 | encode_hk (enc, he); |
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469 | encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he)); |
435 | |
470 | |
436 | if (i < count - 1) |
471 | if (count) |
437 | encode_comma (enc); |
472 | encode_comma (enc); |
438 | } |
473 | } |
439 | |
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440 | encode_nl (enc); |
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441 | } |
474 | } |
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475 | } |
442 | else |
476 | else |
443 | { |
477 | { |
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478 | if (hv_iterinit (hv) || SvMAGICAL (hv)) |
444 | HE *he = hv_iternext (hv); |
479 | if ((he = hv_iternext (hv))) |
445 | |
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446 | for (;;) |
480 | for (;;) |
447 | { |
481 | { |
448 | encode_indent (enc); |
482 | encode_indent (enc); |
449 | encode_he (enc, he); |
483 | encode_hk (enc, he); |
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484 | encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he)); |
450 | |
485 | |
451 | if (!(he = hv_iternext (hv))) |
486 | if (!(he = hv_iternext (hv))) |
452 | break; |
487 | break; |
453 | |
488 | |
454 | encode_comma (enc); |
489 | encode_comma (enc); |
455 | } |
490 | } |
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491 | } |
456 | |
492 | |
457 | encode_nl (enc); |
493 | encode_nl (enc); |
458 | } |
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459 | } |
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460 | |
494 | |
461 | --enc->indent; encode_indent (enc); encode_ch (enc, '}'); |
495 | --enc->indent; encode_indent (enc); encode_ch (enc, '}'); |
462 | } |
496 | } |
463 | |
497 | |
464 | // encode objects, arrays and special \0=false and \1=true values. |
498 | // encode objects, arrays and special \0=false and \1=true values. |
… | |
… | |
470 | SvGETMAGIC (sv); |
504 | SvGETMAGIC (sv); |
471 | svt = SvTYPE (sv); |
505 | svt = SvTYPE (sv); |
472 | |
506 | |
473 | if (expect_false (SvOBJECT (sv))) |
507 | if (expect_false (SvOBJECT (sv))) |
474 | { |
508 | { |
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509 | HV *stash = !JSON_SLOW || json_boolean_stash |
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510 | ? json_boolean_stash |
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511 | : gv_stashpv ("JSON::XS::Boolean", 1); |
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512 | |
475 | if (SvSTASH (sv) == json_boolean_stash) |
513 | if (SvSTASH (sv) == stash) |
476 | { |
514 | { |
477 | if (SvIV (sv) == 0) |
515 | if (SvIV (sv)) |
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516 | encode_str (enc, "true", 4, 0); |
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517 | else |
478 | encode_str (enc, "false", 5, 0); |
518 | encode_str (enc, "false", 5, 0); |
479 | else |
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480 | encode_str (enc, "true", 4, 0); |
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481 | } |
519 | } |
482 | else |
520 | else |
483 | { |
521 | { |
484 | #if 0 |
522 | #if 0 |
485 | if (0 && sv_derived_from (rv, "JSON::Literal")) |
523 | if (0 && sv_derived_from (rv, "JSON::Literal")) |
… | |
… | |
488 | } |
526 | } |
489 | #endif |
527 | #endif |
490 | if (enc->json.flags & F_CONV_BLESSED) |
528 | if (enc->json.flags & F_CONV_BLESSED) |
491 | { |
529 | { |
492 | // we re-bless the reference to get overload and other niceties right |
530 | // we re-bless the reference to get overload and other niceties right |
493 | GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 1); |
531 | GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0); |
494 | |
532 | |
495 | if (to_json) |
533 | if (to_json) |
496 | { |
534 | { |
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535 | dSP; |
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536 | |
497 | dSP; ENTER; SAVETMPS; PUSHMARK (SP); |
537 | ENTER; SAVETMPS; PUSHMARK (SP); |
498 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); |
538 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); |
499 | |
539 | |
500 | // calling with G_SCALAR ensures that we always get a 1 reutrn value |
540 | // calling with G_SCALAR ensures that we always get a 1 return value |
501 | // check anyways. |
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502 | PUTBACK; |
541 | PUTBACK; |
503 | assert (1 == call_sv ((SV *)GvCV (to_json), G_SCALAR)); |
542 | call_sv ((SV *)GvCV (to_json), G_SCALAR); |
504 | SPAGAIN; |
543 | SPAGAIN; |
505 | |
544 | |
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545 | // catch this surprisingly common error |
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546 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
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547 | croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv))); |
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548 | |
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549 | sv = POPs; |
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550 | PUTBACK; |
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551 | |
506 | encode_sv (enc, POPs); |
552 | encode_sv (enc, sv); |
507 | |
553 | |
508 | FREETMPS; LEAVE; |
554 | FREETMPS; LEAVE; |
509 | } |
555 | } |
510 | else if (enc->json.flags & F_ALLOW_BLESSED) |
556 | else if (enc->json.flags & F_ALLOW_BLESSED) |
511 | encode_str (enc, "null", 4, 0); |
557 | encode_str (enc, "null", 4, 0); |
… | |
… | |
527 | else if (svt < SVt_PVAV) |
573 | else if (svt < SVt_PVAV) |
528 | { |
574 | { |
529 | STRLEN len = 0; |
575 | STRLEN len = 0; |
530 | char *pv = svt ? SvPV (sv, len) : 0; |
576 | char *pv = svt ? SvPV (sv, len) : 0; |
531 | |
577 | |
532 | if (len == 1 && *pv == '0') |
578 | if (len == 1 && *pv == '1') |
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579 | encode_str (enc, "true", 4, 0); |
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580 | else if (len == 1 && *pv == '0') |
533 | encode_str (enc, "false", 5, 0); |
581 | encode_str (enc, "false", 5, 0); |
534 | else if (len == 1 && *pv == '1') |
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535 | encode_str (enc, "true", 4, 0); |
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536 | else |
582 | else |
537 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
583 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
538 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
584 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
539 | } |
585 | } |
540 | else |
586 | else |
… | |
… | |
654 | U32 depth; // recursion depth |
700 | U32 depth; // recursion depth |
655 | U32 maxdepth; // recursion depth limit |
701 | U32 maxdepth; // recursion depth limit |
656 | } dec_t; |
702 | } dec_t; |
657 | |
703 | |
658 | inline void |
704 | inline void |
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|
705 | decode_comment (dec_t *dec) |
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706 | { |
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707 | // only '#'-style comments allowed a.t.m. |
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708 | |
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709 | while (*dec->cur && *dec->cur != 0x0a && *dec->cur != 0x0d) |
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710 | ++dec->cur; |
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711 | } |
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712 | |
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713 | inline void |
659 | decode_ws (dec_t *dec) |
714 | decode_ws (dec_t *dec) |
660 | { |
715 | { |
661 | for (;;) |
716 | for (;;) |
662 | { |
717 | { |
663 | char ch = *dec->cur; |
718 | char ch = *dec->cur; |
664 | |
719 | |
665 | if (ch > 0x20 |
720 | if (ch > 0x20) |
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|
721 | { |
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722 | if (expect_false (ch == '#')) |
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|
723 | { |
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724 | if (dec->json.flags & F_RELAXED) |
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725 | decode_comment (dec); |
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|
726 | else |
|
|
727 | break; |
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728 | } |
|
|
729 | else |
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|
730 | break; |
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|
731 | } |
666 | || (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09)) |
732 | else if (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09) |
667 | break; |
733 | break; // parse error, but let higher level handle it, gives better error messages |
668 | |
734 | |
669 | ++dec->cur; |
735 | ++dec->cur; |
670 | } |
736 | } |
671 | } |
737 | } |
672 | |
738 | |
… | |
… | |
921 | is_nv = 1; |
987 | is_nv = 1; |
922 | } |
988 | } |
923 | |
989 | |
924 | if (!is_nv) |
990 | if (!is_nv) |
925 | { |
991 | { |
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|
992 | int len = dec->cur - start; |
|
|
993 | |
926 | // special case the rather common 1..4-digit-int case, assumes 32 bit ints or so |
994 | // special case the rather common 1..4-digit-int case, assumes 32 bit ints or so |
927 | if (*start == '-') |
995 | if (*start == '-') |
928 | switch (dec->cur - start) |
996 | switch (len) |
929 | { |
997 | { |
930 | case 2: return newSViv (-( start [1] - '0' * 1)); |
998 | case 2: return newSViv (-( start [1] - '0' * 1)); |
931 | case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11)); |
999 | case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11)); |
932 | case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111)); |
1000 | case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111)); |
933 | case 5: return newSViv (-(start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111)); |
1001 | case 5: return newSViv (-(start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111)); |
934 | } |
1002 | } |
935 | else |
1003 | else |
936 | switch (dec->cur - start) |
1004 | switch (len) |
937 | { |
1005 | { |
938 | case 1: return newSViv ( start [0] - '0' * 1); |
1006 | case 1: return newSViv ( start [0] - '0' * 1); |
939 | case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11); |
1007 | case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11); |
940 | case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111); |
1008 | case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111); |
941 | case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111); |
1009 | case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111); |
942 | } |
1010 | } |
943 | |
1011 | |
944 | { |
1012 | { |
945 | UV uv; |
1013 | UV uv; |
946 | int numtype = grok_number (start, dec->cur - start, &uv); |
1014 | int numtype = grok_number (start, len, &uv); |
947 | if (numtype & IS_NUMBER_IN_UV) |
1015 | if (numtype & IS_NUMBER_IN_UV) |
948 | if (numtype & IS_NUMBER_NEG) |
1016 | if (numtype & IS_NUMBER_NEG) |
949 | { |
1017 | { |
950 | if (uv < (UV)IV_MIN) |
1018 | if (uv < (UV)IV_MIN) |
951 | return newSViv (-(IV)uv); |
1019 | return newSViv (-(IV)uv); |
952 | } |
1020 | } |
953 | else |
1021 | else |
954 | return newSVuv (uv); |
1022 | return newSVuv (uv); |
955 | |
|
|
956 | // here would likely be the place for bigint support |
|
|
957 | } |
1023 | } |
958 | } |
|
|
959 | |
1024 | |
960 | // if we ever support bigint or bigfloat, this is the place for bigfloat |
1025 | len -= *start == '-' ? 1 : 0; |
|
|
1026 | |
|
|
1027 | // does not fit into IV or UV, try NV |
|
|
1028 | if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len) |
|
|
1029 | #if defined (LDBL_DIG) |
|
|
1030 | || (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len) |
|
|
1031 | #endif |
|
|
1032 | ) |
|
|
1033 | // fits into NV without loss of precision |
|
|
1034 | return newSVnv (Atof (start)); |
|
|
1035 | |
|
|
1036 | // everything else fails, convert it to a string |
|
|
1037 | return newSVpvn (start, dec->cur - start); |
|
|
1038 | } |
|
|
1039 | |
|
|
1040 | // loss of precision here |
961 | return newSVnv (Atof (start)); |
1041 | return newSVnv (Atof (start)); |
962 | |
1042 | |
963 | fail: |
1043 | fail: |
964 | return 0; |
1044 | return 0; |
965 | } |
1045 | } |
… | |
… | |
995 | |
1075 | |
996 | if (*dec->cur != ',') |
1076 | if (*dec->cur != ',') |
997 | ERR (", or ] expected while parsing array"); |
1077 | ERR (", or ] expected while parsing array"); |
998 | |
1078 | |
999 | ++dec->cur; |
1079 | ++dec->cur; |
|
|
1080 | |
|
|
1081 | decode_ws (dec); |
|
|
1082 | |
|
|
1083 | if (*dec->cur == ']' && dec->json.flags & F_RELAXED) |
|
|
1084 | { |
|
|
1085 | ++dec->cur; |
|
|
1086 | break; |
|
|
1087 | } |
1000 | } |
1088 | } |
1001 | |
1089 | |
1002 | DEC_DEC_DEPTH; |
1090 | DEC_DEC_DEPTH; |
1003 | return newRV_noinc ((SV *)av); |
1091 | return newRV_noinc ((SV *)av); |
1004 | |
1092 | |
… | |
… | |
1020 | if (*dec->cur == '}') |
1108 | if (*dec->cur == '}') |
1021 | ++dec->cur; |
1109 | ++dec->cur; |
1022 | else |
1110 | else |
1023 | for (;;) |
1111 | for (;;) |
1024 | { |
1112 | { |
1025 | decode_ws (dec); EXPECT_CH ('"'); |
1113 | EXPECT_CH ('"'); |
1026 | |
1114 | |
1027 | // heuristic: assume that |
1115 | // heuristic: assume that |
1028 | // a) decode_str + hv_store_ent are abysmally slow. |
1116 | // a) decode_str + hv_store_ent are abysmally slow. |
1029 | // b) most hash keys are short, simple ascii text. |
1117 | // b) most hash keys are short, simple ascii text. |
1030 | // => try to "fast-match" such strings to avoid |
1118 | // => try to "fast-match" such strings to avoid |
… | |
… | |
1044 | if (!key) |
1132 | if (!key) |
1045 | goto fail; |
1133 | goto fail; |
1046 | |
1134 | |
1047 | decode_ws (dec); EXPECT_CH (':'); |
1135 | decode_ws (dec); EXPECT_CH (':'); |
1048 | |
1136 | |
|
|
1137 | decode_ws (dec); |
1049 | value = decode_sv (dec); |
1138 | value = decode_sv (dec); |
1050 | if (!value) |
1139 | if (!value) |
1051 | { |
1140 | { |
1052 | SvREFCNT_dec (key); |
1141 | SvREFCNT_dec (key); |
1053 | goto fail; |
1142 | goto fail; |
… | |
… | |
1065 | int len = p - key; |
1154 | int len = p - key; |
1066 | dec->cur = p + 1; |
1155 | dec->cur = p + 1; |
1067 | |
1156 | |
1068 | decode_ws (dec); EXPECT_CH (':'); |
1157 | decode_ws (dec); EXPECT_CH (':'); |
1069 | |
1158 | |
|
|
1159 | decode_ws (dec); |
1070 | value = decode_sv (dec); |
1160 | value = decode_sv (dec); |
1071 | if (!value) |
1161 | if (!value) |
1072 | goto fail; |
1162 | goto fail; |
1073 | |
1163 | |
1074 | hv_store (hv, key, len, value, 0); |
1164 | hv_store (hv, key, len, value, 0); |
… | |
… | |
1090 | |
1180 | |
1091 | if (*dec->cur != ',') |
1181 | if (*dec->cur != ',') |
1092 | ERR (", or } expected while parsing object/hash"); |
1182 | ERR (", or } expected while parsing object/hash"); |
1093 | |
1183 | |
1094 | ++dec->cur; |
1184 | ++dec->cur; |
|
|
1185 | |
|
|
1186 | decode_ws (dec); |
|
|
1187 | |
|
|
1188 | if (*dec->cur == '}' && dec->json.flags & F_RELAXED) |
|
|
1189 | { |
|
|
1190 | ++dec->cur; |
|
|
1191 | break; |
|
|
1192 | } |
1095 | } |
1193 | } |
1096 | |
1194 | |
1097 | DEC_DEC_DEPTH; |
1195 | DEC_DEC_DEPTH; |
1098 | sv = newRV_noinc ((SV *)hv); |
1196 | sv = newRV_noinc ((SV *)hv); |
1099 | |
1197 | |
1100 | // check filter callbacks |
1198 | // check filter callbacks |
1101 | if (dec->json.flags & F_HOOK) |
1199 | if (dec->json.flags & F_HOOK) |
1102 | { |
1200 | { |
1103 | ENTER; SAVETMPS; |
1201 | if (dec->json.cb_sk_object && HvKEYS (hv) == 1) |
1104 | |
|
|
1105 | if (HvKEYS (hv) == 1 && dec->json.cb_sk_object) |
|
|
1106 | { |
1202 | { |
|
|
1203 | HE *cb, *he; |
|
|
1204 | |
|
|
1205 | hv_iterinit (hv); |
|
|
1206 | he = hv_iternext (hv); |
|
|
1207 | hv_iterinit (hv); |
|
|
1208 | |
|
|
1209 | // the next line creates a mortal sv each time its called. |
|
|
1210 | // might want to optimise this for common cases. |
|
|
1211 | cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0); |
|
|
1212 | |
|
|
1213 | if (cb) |
|
|
1214 | { |
|
|
1215 | dSP; |
1107 | int count; |
1216 | int count; |
1108 | |
1217 | |
1109 | dSP; PUSHMARK (SP); |
1218 | ENTER; SAVETMPS; PUSHMARK (SP); |
1110 | XPUSHs (sv_2mortal (sv)); |
1219 | XPUSHs (HeVAL (he)); |
1111 | |
1220 | |
1112 | PUTBACK; count = call_sv (dec->json.cb_sk_object, G_ARRAY); SPAGAIN; |
1221 | PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN; |
1113 | |
1222 | |
1114 | if (count == 1) |
1223 | if (count == 1) |
|
|
1224 | { |
1115 | sv = newSVsv (POPs); |
1225 | sv = newSVsv (POPs); |
1116 | else |
1226 | FREETMPS; LEAVE; |
1117 | SvREFCNT_inc (sv); |
1227 | return sv; |
|
|
1228 | } |
|
|
1229 | |
|
|
1230 | FREETMPS; LEAVE; |
|
|
1231 | } |
1118 | } |
1232 | } |
1119 | |
1233 | |
1120 | if (dec->json.cb_object) |
1234 | if (dec->json.cb_object) |
1121 | { |
1235 | { |
|
|
1236 | dSP; |
1122 | int count; |
1237 | int count; |
1123 | |
1238 | |
1124 | dSP; ENTER; SAVETMPS; PUSHMARK (SP); |
1239 | ENTER; SAVETMPS; PUSHMARK (SP); |
1125 | XPUSHs (sv_2mortal (sv)); |
1240 | XPUSHs (sv_2mortal (sv)); |
1126 | |
1241 | |
1127 | PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN; |
1242 | PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN; |
1128 | |
1243 | |
1129 | if (count == 1) |
1244 | if (count == 1) |
|
|
1245 | { |
1130 | sv = newSVsv (POPs); |
1246 | sv = newSVsv (POPs); |
1131 | else |
1247 | FREETMPS; LEAVE; |
|
|
1248 | return sv; |
|
|
1249 | } |
|
|
1250 | |
1132 | SvREFCNT_inc (sv); |
1251 | SvREFCNT_inc (sv); |
|
|
1252 | FREETMPS; LEAVE; |
1133 | } |
1253 | } |
1134 | |
|
|
1135 | FREETMPS; LEAVE; |
|
|
1136 | } |
1254 | } |
1137 | |
1255 | |
1138 | return newRV_noinc ((SV *)hv); |
1256 | return sv; |
1139 | |
1257 | |
1140 | fail: |
1258 | fail: |
1141 | SvREFCNT_dec (hv); |
1259 | SvREFCNT_dec (hv); |
1142 | DEC_DEC_DEPTH; |
1260 | DEC_DEC_DEPTH; |
1143 | return 0; |
1261 | return 0; |
1144 | } |
1262 | } |
1145 | |
1263 | |
1146 | static SV * |
1264 | static SV * |
1147 | decode_sv (dec_t *dec) |
1265 | decode_sv (dec_t *dec) |
1148 | { |
1266 | { |
1149 | decode_ws (dec); |
|
|
1150 | |
|
|
1151 | // the beauty of JSON: you need exactly one character lookahead |
1267 | // the beauty of JSON: you need exactly one character lookahead |
1152 | // to parse anything. |
1268 | // to parse anything. |
1153 | switch (*dec->cur) |
1269 | switch (*dec->cur) |
1154 | { |
1270 | { |
1155 | case '"': ++dec->cur; return decode_str (dec); |
1271 | case '"': ++dec->cur; return decode_str (dec); |
… | |
… | |
1163 | |
1279 | |
1164 | case 't': |
1280 | case 't': |
1165 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
1281 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
1166 | { |
1282 | { |
1167 | dec->cur += 4; |
1283 | dec->cur += 4; |
|
|
1284 | #if JSON_SLOW |
|
|
1285 | json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true); |
|
|
1286 | #endif |
1168 | return SvREFCNT_inc (json_true); |
1287 | return SvREFCNT_inc (json_true); |
1169 | } |
1288 | } |
1170 | else |
1289 | else |
1171 | ERR ("'true' expected"); |
1290 | ERR ("'true' expected"); |
1172 | |
1291 | |
… | |
… | |
1174 | |
1293 | |
1175 | case 'f': |
1294 | case 'f': |
1176 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
1295 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
1177 | { |
1296 | { |
1178 | dec->cur += 5; |
1297 | dec->cur += 5; |
|
|
1298 | #if JSON_SLOW |
|
|
1299 | json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false); |
|
|
1300 | #endif |
1179 | return SvREFCNT_inc (json_false); |
1301 | return SvREFCNT_inc (json_false); |
1180 | } |
1302 | } |
1181 | else |
1303 | else |
1182 | ERR ("'false' expected"); |
1304 | ERR ("'false' expected"); |
1183 | |
1305 | |
… | |
… | |
1233 | |
1355 | |
1234 | if (dec.json.cb_object || dec.json.cb_sk_object) |
1356 | if (dec.json.cb_object || dec.json.cb_sk_object) |
1235 | dec.json.flags |= F_HOOK; |
1357 | dec.json.flags |= F_HOOK; |
1236 | |
1358 | |
1237 | *dec.end = 0; // this should basically be a nop, too, but make sure it's there |
1359 | *dec.end = 0; // this should basically be a nop, too, but make sure it's there |
|
|
1360 | |
|
|
1361 | decode_ws (&dec); |
1238 | sv = decode_sv (&dec); |
1362 | sv = decode_sv (&dec); |
1239 | |
1363 | |
1240 | if (!(offset_return || !sv)) |
1364 | if (!(offset_return || !sv)) |
1241 | { |
1365 | { |
1242 | // check for trailing garbage |
1366 | // check for trailing garbage |
… | |
… | |
1310 | json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false); |
1434 | json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false); |
1311 | } |
1435 | } |
1312 | |
1436 | |
1313 | PROTOTYPES: DISABLE |
1437 | PROTOTYPES: DISABLE |
1314 | |
1438 | |
|
|
1439 | void CLONE (...) |
|
|
1440 | CODE: |
|
|
1441 | json_stash = 0; |
|
|
1442 | json_boolean_stash = 0; |
|
|
1443 | |
1315 | void new (char *klass) |
1444 | void new (char *klass) |
1316 | PPCODE: |
1445 | PPCODE: |
1317 | { |
1446 | { |
1318 | SV *pv = NEWSV (0, sizeof (JSON)); |
1447 | SV *pv = NEWSV (0, sizeof (JSON)); |
1319 | SvPOK_only (pv); |
1448 | SvPOK_only (pv); |
1320 | Zero (SvPVX (pv), 1, JSON); |
1449 | Zero (SvPVX (pv), 1, JSON); |
1321 | ((JSON *)SvPVX (pv))->flags = F_DEFAULT; |
1450 | ((JSON *)SvPVX (pv))->flags = F_DEFAULT; |
1322 | XPUSHs (sv_2mortal (sv_bless (newRV_noinc (pv), json_stash))); |
1451 | XPUSHs (sv_2mortal (sv_bless (newRV_noinc (pv), JSON_STASH))); |
1323 | } |
1452 | } |
1324 | |
1453 | |
1325 | void ascii (JSON *self, int enable = 1) |
1454 | void ascii (JSON *self, int enable = 1) |
1326 | ALIAS: |
1455 | ALIAS: |
1327 | ascii = F_ASCII |
1456 | ascii = F_ASCII |
… | |
… | |
1334 | pretty = F_PRETTY |
1463 | pretty = F_PRETTY |
1335 | allow_nonref = F_ALLOW_NONREF |
1464 | allow_nonref = F_ALLOW_NONREF |
1336 | shrink = F_SHRINK |
1465 | shrink = F_SHRINK |
1337 | allow_blessed = F_ALLOW_BLESSED |
1466 | allow_blessed = F_ALLOW_BLESSED |
1338 | convert_blessed = F_CONV_BLESSED |
1467 | convert_blessed = F_CONV_BLESSED |
|
|
1468 | relaxed = F_RELAXED |
1339 | PPCODE: |
1469 | PPCODE: |
1340 | { |
1470 | { |
1341 | if (enable) |
1471 | if (enable) |
1342 | self->flags |= ix; |
1472 | self->flags |= ix; |
1343 | else |
1473 | else |
… | |
… | |
1375 | self->flags = self->flags & ~F_MAXSIZE | (log2 << S_MAXSIZE); |
1505 | self->flags = self->flags & ~F_MAXSIZE | (log2 << S_MAXSIZE); |
1376 | |
1506 | |
1377 | XPUSHs (ST (0)); |
1507 | XPUSHs (ST (0)); |
1378 | } |
1508 | } |
1379 | |
1509 | |
1380 | void filter_json_objects (JSON *self, SV *cb = &PL_sv_undef) |
1510 | void filter_json_object (JSON *self, SV *cb = &PL_sv_undef) |
1381 | ALIAS: |
|
|
1382 | filter_sk_json_objects = 1 |
|
|
1383 | PPCODE: |
1511 | PPCODE: |
1384 | { |
1512 | { |
|
|
1513 | SvREFCNT_dec (self->cb_object); |
|
|
1514 | self->cb_object = SvOK (cb) ? newSVsv (cb) : 0; |
|
|
1515 | |
|
|
1516 | XPUSHs (ST (0)); |
|
|
1517 | } |
|
|
1518 | |
|
|
1519 | void filter_json_single_key_object (JSON *self, SV *key, SV *cb = &PL_sv_undef) |
|
|
1520 | PPCODE: |
|
|
1521 | { |
|
|
1522 | if (!self->cb_sk_object) |
|
|
1523 | self->cb_sk_object = newHV (); |
|
|
1524 | |
1385 | if (!SvOK (cb)) |
1525 | if (SvOK (cb)) |
1386 | cb = 0; |
1526 | hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0); |
1387 | |
1527 | else |
1388 | switch (ix) |
|
|
1389 | { |
1528 | { |
1390 | case 0: self->cb_object = cb; break; |
1529 | hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0); |
|
|
1530 | |
|
|
1531 | if (!HvKEYS (self->cb_sk_object)) |
|
|
1532 | { |
|
|
1533 | SvREFCNT_dec (self->cb_sk_object); |
1391 | case 1: self->cb_sk_object = cb; break; |
1534 | self->cb_sk_object = 0; |
|
|
1535 | } |
1392 | } |
1536 | } |
1393 | |
1537 | |
1394 | XPUSHs (ST (0)); |
1538 | XPUSHs (ST (0)); |
1395 | } |
1539 | } |
1396 | |
1540 | |
… | |
… | |
1409 | EXTEND (SP, 2); |
1553 | EXTEND (SP, 2); |
1410 | PUSHs (decode_json (jsonstr, self, &offset)); |
1554 | PUSHs (decode_json (jsonstr, self, &offset)); |
1411 | PUSHs (sv_2mortal (newSVuv (offset))); |
1555 | PUSHs (sv_2mortal (newSVuv (offset))); |
1412 | } |
1556 | } |
1413 | |
1557 | |
|
|
1558 | void DESTROY (JSON *self) |
|
|
1559 | CODE: |
|
|
1560 | SvREFCNT_dec (self->cb_sk_object); |
|
|
1561 | SvREFCNT_dec (self->cb_object); |
|
|
1562 | |
1414 | PROTOTYPES: ENABLE |
1563 | PROTOTYPES: ENABLE |
1415 | |
1564 | |
1416 | void to_json (SV *scalar) |
1565 | void to_json (SV *scalar) |
1417 | PPCODE: |
1566 | PPCODE: |
1418 | { |
1567 | { |