1 /* This file is part of the Lexical-Types Perl module.
2 * See http://search.cpan.org/dist/Lexical-Types/ */
4 #define PERL_NO_GET_CONTEXT
9 #define __PACKAGE__ "Lexical::Types"
10 #define __PACKAGE_LEN__ (sizeof(__PACKAGE__)-1)
12 /* --- Compatibility wrappers ---------------------------------------------- */
14 #define LT_HAS_PERL(R, V, S) (PERL_REVISION > (R) || (PERL_REVISION == (R) && (PERL_VERSION > (V) || (PERL_VERSION == (V) && (PERL_SUBVERSION >= (S))))))
16 #if LT_HAS_PERL(5, 10, 0) || defined(PL_parser)
17 # ifndef PL_in_my_stash
18 # define PL_in_my_stash PL_parser->in_my_stash
21 # ifndef PL_in_my_stash
22 # define PL_in_my_stash PL_Iin_my_stash
26 #ifndef LT_WORKAROUND_REQUIRE_PROPAGATION
27 # define LT_WORKAROUND_REQUIRE_PROPAGATION !LT_HAS_PERL(5, 10, 1)
31 # define LT_HAS_RPEEP LT_HAS_PERL(5, 13, 5)
35 # define HvNAME_get(H) HvNAME(H)
39 # define HvNAMELEN_get(H) strlen(HvNAME_get(H))
42 #ifndef SvREFCNT_inc_simple_void_NN
43 # define SvREFCNT_inc_simple_void_NN(S) ((void) SvREFCNT_inc(S))
46 /* ... Thread safety and multiplicity ...................................... */
48 /* Safe unless stated otherwise in Makefile.PL */
50 # define LT_FORKSAFE 1
53 #ifndef LT_MULTIPLICITY
54 # if defined(MULTIPLICITY) || defined(PERL_IMPLICIT_CONTEXT)
55 # define LT_MULTIPLICITY 1
57 # define LT_MULTIPLICITY 0
62 # define tTHX PerlInterpreter*
65 #if LT_MULTIPLICITY && defined(USE_ITHREADS) && defined(dMY_CXT) && defined(MY_CXT) && defined(START_MY_CXT) && defined(MY_CXT_INIT) && (defined(MY_CXT_CLONE) || defined(dMY_CXT_SV))
66 # define LT_THREADSAFE 1
68 # define MY_CXT_CLONE \
70 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1)); \
71 Copy(INT2PTR(my_cxt_t*, SvUV(my_cxt_sv)), my_cxtp, 1, my_cxt_t); \
72 sv_setuv(my_cxt_sv, PTR2UV(my_cxtp))
75 # define LT_THREADSAFE 0
77 # define dMY_CXT dNOOP
79 # define MY_CXT lt_globaldata
81 # define START_MY_CXT STATIC my_cxt_t MY_CXT;
83 # define MY_CXT_INIT NOOP
85 # define MY_CXT_CLONE NOOP
96 #if defined(OP_CHECK_MUTEX_LOCK) && defined(OP_CHECK_MUTEX_UNLOCK)
97 # define LT_CHECK_MUTEX_LOCK OP_CHECK_MUTEX_LOCK
98 # define LT_CHECK_MUTEX_UNLOCK OP_CHECK_MUTEX_UNLOCK
100 # define LT_CHECK_MUTEX_LOCK OP_REFCNT_LOCK
101 # define LT_CHECK_MUTEX_UNLOCK OP_REFCNT_UNLOCK
104 typedef OP *(*lt_ck_t)(pTHX_ OP *);
106 #ifdef wrap_op_checker
108 # define lt_ck_replace(T, NC, OCP) wrap_op_checker((T), (NC), (OCP))
112 STATIC void lt_ck_replace(pTHX_ OPCODE type, lt_ck_t new_ck, lt_ck_t *old_ck_p){
113 #define lt_ck_replace(T, NC, OCP) lt_ck_replace(aTHX_ (T), (NC), (OCP))
116 *old_ck_p = PL_check[type];
117 PL_check[type] = new_ck;
119 LT_CHECK_MUTEX_UNLOCK;
124 STATIC void lt_ck_restore(pTHX_ OPCODE type, lt_ck_t *old_ck_p) {
125 #define lt_ck_restore(T, OCP) lt_ck_restore(aTHX_ (T), (OCP))
128 PL_check[type] = *old_ck_p;
131 LT_CHECK_MUTEX_UNLOCK;
134 /* --- Helpers ------------------------------------------------------------- */
136 /* ... Thread-safe hints ................................................... */
138 #if LT_WORKAROUND_REQUIRE_PROPAGATION
145 #define LT_HINT_STRUCT 1
147 #define LT_HINT_CODE(H) ((H)->code)
149 #define LT_HINT_FREE(H) { \
150 lt_hint_t *h = (H); \
151 SvREFCNT_dec(h->code); \
152 PerlMemShared_free(h); \
155 #else /* LT_WORKAROUND_REQUIRE_PROPAGATION */
157 typedef SV lt_hint_t;
159 #define LT_HINT_STRUCT 0
161 #define LT_HINT_CODE(H) (H)
163 #define LT_HINT_FREE(H) SvREFCNT_dec(H);
165 #endif /* !LT_WORKAROUND_REQUIRE_PROPAGATION */
169 #define PTABLE_NAME ptable_hints
170 #define PTABLE_VAL_FREE(V) LT_HINT_FREE(V)
179 #define ptable_hints_store(T, K, V) ptable_hints_store(aTHX_ (T), (K), (V))
180 #define ptable_hints_free(T) ptable_hints_free(aTHX_ (T))
182 #endif /* LT_THREADSAFE */
184 /* ... "Seen" pointer table ................................................ */
186 #define PTABLE_NAME ptable_seen
187 #define PTABLE_VAL_FREE(V) NOOP
191 /* PerlMemShared_free() needs the [ap]PTBLMS_? default values */
192 #define ptable_seen_store(T, K, V) ptable_seen_store(aPTBLMS_ (T), (K), (V))
193 #define ptable_seen_clear(T) ptable_seen_clear(aPTBLMS_ (T))
194 #define ptable_seen_free(T) ptable_seen_free(aPTBLMS_ (T))
196 /* ... Global data ......................................................... */
198 #define MY_CXT_KEY __PACKAGE__ "::_guts" XS_VERSION
202 ptable *tbl; /* It really is a ptable_hints */
205 ptable *seen; /* It really is a ptable_seen */
211 /* ... Cloning global data ................................................. */
217 #if LT_HAS_PERL(5, 13, 2)
218 CLONE_PARAMS *params;
222 } lt_ptable_clone_ud;
224 #if LT_HAS_PERL(5, 13, 2)
225 # define lt_ptable_clone_ud_init(U, T, O) \
227 (U).params = Perl_clone_params_new((O), aTHX)
228 # define lt_ptable_clone_ud_deinit(U) Perl_clone_params_del((U).params)
229 # define lt_dup_inc(S, U) SvREFCNT_inc(sv_dup((S), (U)->params))
231 # define lt_ptable_clone_ud_init(U, T, O) \
233 (U).params.stashes = newAV(); \
234 (U).params.flags = 0; \
235 (U).params.proto_perl = (O)
236 # define lt_ptable_clone_ud_deinit(U) SvREFCNT_dec((U).params.stashes)
237 # define lt_dup_inc(S, U) SvREFCNT_inc(sv_dup((S), &((U)->params)))
240 STATIC void lt_ptable_clone(pTHX_ ptable_ent *ent, void *ud_) {
241 lt_ptable_clone_ud *ud = ud_;
242 lt_hint_t *h1 = ent->val;
247 h2 = PerlMemShared_malloc(sizeof *h2);
248 h2->code = lt_dup_inc(h1->code, ud);
249 #if LT_WORKAROUND_REQUIRE_PROPAGATION
250 h2->require_tag = PTR2IV(lt_dup_inc(INT2PTR(SV *, h1->require_tag), ud));
253 #else /* LT_HINT_STRUCT */
255 h2 = lt_dup_inc(h1, ud);
257 #endif /* !LT_HINT_STRUCT */
259 ptable_hints_store(ud->tbl, ent->key, h2);
262 STATIC void lt_thread_cleanup(pTHX_ void *ud) {
265 ptable_hints_free(MY_CXT.tbl);
267 ptable_seen_free(MY_CXT.seen);
269 SvREFCNT_dec(MY_CXT.default_meth);
270 MY_CXT.default_meth = NULL;
273 STATIC int lt_endav_free(pTHX_ SV *sv, MAGIC *mg) {
274 SAVEDESTRUCTOR_X(lt_thread_cleanup, NULL);
279 STATIC MGVTBL lt_endav_vtbl = {
296 #endif /* LT_THREADSAFE */
298 /* ... Hint tags ........................................................... */
300 #if LT_WORKAROUND_REQUIRE_PROPAGATION
302 STATIC IV lt_require_tag(pTHX) {
303 #define lt_require_tag() lt_require_tag(aTHX)
304 const CV *cv, *outside;
309 /* If for some reason the pragma is operational at run-time, try to discover
310 * the current cv in use. */
313 for (si = PL_curstackinfo; si; si = si->si_prev) {
316 for (cxix = si->si_cxix; cxix >= 0; --cxix) {
317 const PERL_CONTEXT *cx = si->si_cxstack + cxix;
319 switch (CxTYPE(cx)) {
322 /* The propagation workaround is only needed up to 5.10.0 and at that
323 * time format and sub contexts were still identical. And even later the
324 * cv members offsets should have been kept the same. */
326 goto get_enclosing_cv;
328 cv = cx->blk_eval.cv;
329 goto get_enclosing_cv;
340 for (outside = CvOUTSIDE(cv); outside; outside = CvOUTSIDE(cv))
346 #endif /* LT_WORKAROUND_REQUIRE_PROPAGATION */
348 STATIC SV *lt_tag(pTHX_ SV *value) {
349 #define lt_tag(V) lt_tag(aTHX_ (V))
357 #endif /* LT_THREADSAFE */
361 if (SvTYPE(value) >= SVt_PVCV) {
363 SvREFCNT_inc_simple_void_NN(code);
368 h = PerlMemShared_malloc(sizeof *h);
370 # if LT_WORKAROUND_REQUIRE_PROPAGATION
371 h->require_tag = lt_require_tag();
372 # endif /* LT_WORKAROUND_REQUIRE_PROPAGATION */
373 #else /* LT_HINT_STRUCT */
375 #endif /* !LT_HINT_STRUCT */
378 /* We only need for the key to be an unique tag for looking up the value later
379 * Allocated memory provides convenient unique identifiers, so that's why we
380 * use the hint as the key itself. */
381 ptable_hints_store(MY_CXT.tbl, h, h);
382 #endif /* LT_THREADSAFE */
384 return newSViv(PTR2IV(h));
387 STATIC SV *lt_detag(pTHX_ const SV *hint) {
388 #define lt_detag(H) lt_detag(aTHX_ (H))
395 #endif /* LT_THREADSAFE */
397 if (!(hint && SvIOK(hint)))
400 h = INT2PTR(lt_hint_t *, SvIVX(hint));
402 h = ptable_fetch(MY_CXT.tbl, h);
403 #endif /* LT_THREADSAFE */
404 #if LT_WORKAROUND_REQUIRE_PROPAGATION
405 if (lt_require_tag() != h->require_tag)
407 #endif /* LT_WORKAROUND_REQUIRE_PROPAGATION */
409 return LT_HINT_CODE(h);
412 STATIC U32 lt_hash = 0;
414 STATIC SV *lt_hint(pTHX) {
415 #define lt_hint() lt_hint(aTHX)
417 #ifdef cop_hints_fetch_pvn
418 hint = cop_hints_fetch_pvn(PL_curcop, __PACKAGE__, __PACKAGE_LEN__, lt_hash,0);
419 #elif LT_HAS_PERL(5, 9, 5)
420 hint = Perl_refcounted_he_fetch(aTHX_ PL_curcop->cop_hints_hash,
422 __PACKAGE__, __PACKAGE_LEN__,
426 SV **val = hv_fetch(GvHV(PL_hintgv), __PACKAGE__, __PACKAGE_LEN__, 0);
431 return lt_detag(hint);
434 /* ... op => info map ...................................................... */
436 #define PTABLE_NAME ptable_map
437 #define PTABLE_VAL_FREE(V) PerlMemShared_free(V)
441 /* PerlMemShared_free() needs the [ap]PTBLMS_? default values */
442 #define ptable_map_store(T, K, V) ptable_map_store(aPTBLMS_ (T), (K), (V))
443 #define ptable_map_delete(T, K) ptable_map_delete(aPTBLMS_ (T), (K))
447 STATIC perl_mutex lt_op_map_mutex;
449 #define LT_LOCK(M) MUTEX_LOCK(M)
450 #define LT_UNLOCK(M) MUTEX_UNLOCK(M)
452 #else /* USE_ITHREADS */
457 #endif /* !USE_ITHREADS */
459 STATIC ptable *lt_op_padxv_map = NULL;
464 STRLEN buf_size, orig_pkg_len, type_pkg_len, type_meth_len;
466 #else /* MULTIPLICITY */
470 #endif /* !MULTIPLICITY */
473 STATIC void lt_op_padxv_info_call(pTHX_ const lt_op_padxv_info *oi, SV *sv) {
474 #define lt_op_padxv_info_call(O, S) lt_op_padxv_info_call(aTHX_ (O), (S))
475 SV *orig_pkg, *type_pkg, *type_meth;
484 STRLEN op_len = oi->orig_pkg_len, tp_len = oi->type_pkg_len;
486 orig_pkg = sv_2mortal(newSVpvn(buf, op_len));
487 SvREADONLY_on(orig_pkg);
489 type_pkg = sv_2mortal(newSVpvn(buf, tp_len));
490 SvREADONLY_on(type_pkg);
492 type_meth = sv_2mortal(newSVpvn(buf, oi->type_meth_len));
493 SvREADONLY_on(type_meth);
495 #else /* MULTIPLICITY */
496 orig_pkg = oi->orig_pkg;
497 type_pkg = oi->type_pkg;
498 type_meth = oi->type_meth;
499 #endif /* !MULTIPLICITY */
508 items = call_sv(type_meth, G_ARRAY | G_METHOD);
518 croak("Typed scalar initializer method should return zero or one scalar, but got %d", items);
528 STATIC void lt_padxv_map_store(pTHX_ const OP *o, SV *orig_pkg, SV *type_pkg, SV *type_meth, OP *(*old_pp)(pTHX)) {
529 #define lt_padxv_map_store(O, OP, TP, TM, PP) lt_padxv_map_store(aTHX_ (O), (OP), (TP), (TM), (PP))
530 lt_op_padxv_info *oi;
532 LT_LOCK(<_op_map_mutex);
534 if (!(oi = ptable_fetch(lt_op_padxv_map, o))) {
535 oi = PerlMemShared_malloc(sizeof *oi);
536 ptable_map_store(lt_op_padxv_map, o, oi);
540 #else /* MULTIPLICITY */
542 SvREFCNT_dec(oi->orig_pkg);
543 SvREFCNT_dec(oi->type_pkg);
544 SvREFCNT_dec(oi->type_meth);
545 #endif /* !MULTIPLICITY */
550 STRLEN op_len = SvCUR(orig_pkg);
551 STRLEN tp_len = SvCUR(type_pkg);
552 STRLEN tm_len = SvCUR(type_meth);
553 STRLEN new_buf_size = op_len + tp_len + tm_len;
555 if (new_buf_size > oi->buf_size) {
556 PerlMemShared_free(oi->buf);
557 oi->buf = PerlMemShared_malloc(new_buf_size);
558 oi->buf_size = new_buf_size;
561 Copy(SvPVX(orig_pkg), buf, op_len, char);
563 Copy(SvPVX(type_pkg), buf, tp_len, char);
565 Copy(SvPVX(type_meth), buf, tm_len, char);
566 oi->orig_pkg_len = op_len;
567 oi->type_pkg_len = tp_len;
568 oi->type_meth_len = tm_len;
569 SvREFCNT_dec(orig_pkg);
570 SvREFCNT_dec(type_pkg);
571 SvREFCNT_dec(type_meth);
573 #else /* MULTIPLICITY */
574 oi->orig_pkg = orig_pkg;
575 oi->type_pkg = type_pkg;
576 oi->type_meth = type_meth;
577 #endif /* !MULTIPLICITY */
581 LT_UNLOCK(<_op_map_mutex);
584 STATIC const lt_op_padxv_info *lt_padxv_map_fetch(const OP *o, lt_op_padxv_info *oi) {
585 const lt_op_padxv_info *val;
587 LT_LOCK(<_op_map_mutex);
589 val = ptable_fetch(lt_op_padxv_map, o);
595 LT_UNLOCK(<_op_map_mutex);
600 #if LT_HAS_PERL(5, 17, 6)
602 STATIC ptable *lt_op_padrange_map = NULL;
606 const OP *padxv_start;
607 } lt_op_padrange_info;
609 STATIC void lt_padrange_map_store(pTHX_ const OP *o, const OP *s, OP *(*old_pp)(pTHX)) {
610 #define lt_padrange_map_store(O, S, PP) lt_padrange_map_store(aTHX_ (O), (S), (PP))
611 lt_op_padrange_info *oi;
613 LT_LOCK(<_op_map_mutex);
615 if (!(oi = ptable_fetch(lt_op_padrange_map, o))) {
616 oi = PerlMemShared_malloc(sizeof *oi);
617 ptable_map_store(lt_op_padrange_map, o, oi);
623 LT_UNLOCK(<_op_map_mutex);
626 STATIC const lt_op_padrange_info *lt_padrange_map_fetch(const OP *o, lt_op_padrange_info *oi) {
627 const lt_op_padrange_info *val;
629 LT_LOCK(<_op_map_mutex);
631 val = ptable_fetch(lt_op_padrange_map, o);
637 LT_UNLOCK(<_op_map_mutex);
644 STATIC void lt_map_delete(pTHX_ const OP *o) {
645 #define lt_map_delete(O) lt_map_delete(aTHX_ (O))
646 LT_LOCK(<_op_map_mutex);
648 ptable_map_delete(lt_op_padxv_map, o);
649 #if LT_HAS_PERL(5, 17, 6)
650 ptable_map_delete(lt_op_padrange_map, o);
653 LT_UNLOCK(<_op_map_mutex);
656 /* --- Hooks --------------------------------------------------------------- */
658 /* ... Our pp_padsv ........................................................ */
660 STATIC OP *lt_pp_padsv(pTHX) {
663 if (lt_padxv_map_fetch(PL_op, &oi)) {
665 lt_op_padxv_info_call(&oi, TARG);
666 return oi.old_pp(aTHX);
669 return PL_op->op_ppaddr(aTHX);
672 /* ... Our pp_padrange (on perl 5.17.6 and above) .......................... */
674 #if LT_HAS_PERL(5, 17, 6)
676 STATIC OP *lt_pp_padrange(pTHX) {
677 lt_op_padrange_info roi;
679 if (lt_padrange_map_fetch(PL_op, &roi)) {
680 PADOFFSET i, base, count;
683 base = PL_op->op_targ;
684 count = PL_op->op_private & OPpPADRANGE_COUNTMASK;
686 for (i = 0, p = roi.padxv_start; i < count && p; ++i, p = p->op_sibling) {
688 if (p->op_type == OP_PADSV && lt_padxv_map_fetch(p, &oi))
689 lt_op_padxv_info_call(&oi, PAD_SV(base + i));
692 return roi.old_pp(aTHX);
695 return PL_op->op_ppaddr(aTHX);
700 /* ... Our ck_pad{any,sv} .................................................. */
702 /* Sadly, the padsv OPs we are interested in don't trigger the padsv check
703 * function, but are instead manually mutated from a padany. So we store
704 * the op entry in the op map in the padany check function, and we set their
705 * op_ppaddr member in our peephole optimizer replacement below. */
707 STATIC OP *(*lt_old_ck_padany)(pTHX_ OP *) = 0;
709 STATIC OP *lt_ck_padany(pTHX_ OP *o) {
713 o = lt_old_ck_padany(aTHX_ o);
715 stash = PL_in_my_stash;
716 if (stash && (code = lt_hint())) {
718 SV *orig_pkg = newSVpvn(HvNAME_get(stash), HvNAMELEN_get(stash));
719 SV *orig_meth = MY_CXT.default_meth; /* Guarded by lt_hint() */
721 SV *type_meth = NULL;
726 SvREADONLY_on(orig_pkg);
737 items = call_sv(code, G_ARRAY);
741 croak(__PACKAGE__ " mangler should return zero, one or two scalars, but got %d", items);
743 SvREFCNT_dec(orig_pkg);
752 type_meth = newSVsv(rsv);
753 SvREADONLY_on(type_meth);
758 type_pkg = newSVsv(rsv);
759 SvREADONLY_on(type_pkg);
769 SvREFCNT_inc_simple_void_NN(orig_pkg);
773 type_meth = orig_meth;
774 SvREFCNT_inc_simple_void_NN(orig_meth);
777 lt_padxv_map_store(o, orig_pkg, type_pkg, type_meth, o->op_ppaddr);
786 STATIC OP *(*lt_old_ck_padsv)(pTHX_ OP *) = 0;
788 STATIC OP *lt_ck_padsv(pTHX_ OP *o) {
791 return lt_old_ck_padsv(aTHX_ o);
794 /* ... Our peephole optimizer .............................................. */
796 #if LT_HAS_PERL(5, 17, 6)
798 STATIC int lt_maybe_padrange_setup(pTHX_ OP *o, const OP *start) {
799 #define lt_maybe_padrange_setup(O, S) lt_maybe_padrange_setup(aTHX_ (O), (S))
803 count = o->op_private & OPpPADRANGE_COUNTMASK;
805 for (i = 0, p = start; i < count && p; ++i, p = p->op_sibling) {
806 if (p->op_type == OP_PADSV) {
807 /* In a padrange sequence, either all lexicals are typed, or none are.
808 * Thus we can stop at the first padsv op. However, note that these
809 * lexicals can need to call different methods in different packages. */
810 LT_LOCK(<_op_map_mutex);
811 if (ptable_fetch(lt_op_padxv_map, p)) {
812 LT_UNLOCK(<_op_map_mutex);
813 lt_padrange_map_store(o, start, o->op_ppaddr);
814 o->op_ppaddr = lt_pp_padrange;
816 LT_UNLOCK(<_op_map_mutex);
827 STATIC peep_t lt_old_peep = 0; /* This is actually the rpeep past 5.13.5 */
829 STATIC void lt_peep_rec(pTHX_ OP *o, ptable *seen) {
830 #define lt_peep_rec(O) lt_peep_rec(aTHX_ (O), seen)
831 for (; o; o = o->op_next) {
832 if (ptable_fetch(seen, o))
834 ptable_seen_store(seen, o, o);
836 switch (o->op_type) {
838 if (o->op_ppaddr != lt_pp_padsv && o->op_private & OPpLVAL_INTRO) {
839 lt_op_padxv_info *oi;
840 LT_LOCK(<_op_map_mutex);
841 oi = ptable_fetch(lt_op_padxv_map, o);
843 oi->old_pp = o->op_ppaddr;
844 o->op_ppaddr = lt_pp_padsv;
846 LT_UNLOCK(<_op_map_mutex);
849 #if LT_HAS_PERL(5, 17, 6)
851 /* We deal with special padrange ops later, in the aassign op they belong
853 if (o->op_ppaddr != lt_pp_padrange && o->op_private & OPpLVAL_INTRO
854 && !(o->op_flags & OPf_SPECIAL)) {
855 /* A padrange op is guaranteed to have previously been a pushmark.
856 * Moreover, for non-special padrange ops (i.e. that aren't for
857 * my (...) = @_), the original padxv ops are its siblings. */
858 lt_maybe_padrange_setup(o, o->op_sibling);
863 if (cBINOPo->op_first && cBINOPo->op_first->op_flags & OPf_KIDS
864 && (op = cUNOPx(cBINOPo->op_first)->op_first)
865 && op->op_type == OP_PADRANGE
866 && op->op_ppaddr != lt_pp_padrange
867 && op->op_private & OPpLVAL_INTRO
868 && op->op_flags & OPf_SPECIAL) {
869 const OP *start = cUNOPx(cBINOPo->op_last)->op_first;
870 if (start->op_type == OP_PUSHMARK)
871 start = start->op_sibling;
872 lt_maybe_padrange_setup(op, start);
886 # if LT_HAS_PERL(5, 10, 0)
891 lt_peep_rec(cLOGOPo->op_other);
895 lt_peep_rec(cLOOPo->op_redoop);
896 lt_peep_rec(cLOOPo->op_nextop);
897 lt_peep_rec(cLOOPo->op_lastop);
899 # if LT_HAS_PERL(5, 9, 5)
901 lt_peep_rec(cPMOPo->op_pmstashstartu.op_pmreplstart);
907 lt_peep_rec(cPMOPo->op_pmreplstart);
910 #endif /* !LT_HAS_RPEEP */
917 STATIC void lt_peep(pTHX_ OP *o) {
919 ptable *seen = MY_CXT.seen;
921 lt_old_peep(aTHX_ o);
924 ptable_seen_clear(seen);
926 ptable_seen_clear(seen);
930 /* --- Interpreter setup/teardown ------------------------------------------ */
933 STATIC U32 lt_initialized = 0;
935 STATIC void lt_teardown(pTHX_ void *root) {
947 ptable_hints_free(MY_CXT.tbl);
950 ptable_seen_free(MY_CXT.seen);
952 SvREFCNT_dec(MY_CXT.default_meth);
953 MY_CXT.default_meth = NULL;
956 lt_ck_restore(OP_PADANY, <_old_ck_padany);
957 lt_ck_restore(OP_PADSV, <_old_ck_padsv);
960 PL_rpeepp = lt_old_peep;
962 PL_peepp = lt_old_peep;
969 STATIC void lt_setup(pTHX) {
970 #define lt_setup() lt_setup(aTHX)
977 MY_CXT.tbl = ptable_new();
980 MY_CXT.seen = ptable_new();
981 MY_CXT.default_meth = newSVpvn("TYPEDSCALAR", 11);
982 SvREADONLY_on(MY_CXT.default_meth);
985 lt_ck_replace(OP_PADANY, lt_ck_padany, <_old_ck_padany);
986 lt_ck_replace(OP_PADSV, lt_ck_padsv, <_old_ck_padsv);
989 lt_old_peep = PL_rpeepp;
992 lt_old_peep = PL_peepp;
997 call_atexit(lt_teardown, aTHX);
999 call_atexit(lt_teardown, NULL);
1005 STATIC U32 lt_booted = 0;
1007 /* --- XS ------------------------------------------------------------------ */
1009 MODULE = Lexical::Types PACKAGE = Lexical::Types
1018 lt_op_padxv_map = ptable_new();
1019 #if LT_HAS_PERL(5, 17, 6)
1020 lt_op_padrange_map = ptable_new();
1023 MUTEX_INIT(<_op_map_mutex);
1026 PERL_HASH(lt_hash, __PACKAGE__, __PACKAGE_LEN__);
1028 stash = gv_stashpvn(__PACKAGE__, __PACKAGE_LEN__, 1);
1029 newCONSTSUB(stash, "LT_THREADSAFE", newSVuv(LT_THREADSAFE));
1030 newCONSTSUB(stash, "LT_FORKSAFE", newSVuv(LT_FORKSAFE));
1044 SV *cloned_default_meth;
1049 lt_ptable_clone_ud ud;
1053 lt_ptable_clone_ud_init(ud, t, MY_CXT.owner);
1054 ptable_walk(MY_CXT.tbl, lt_ptable_clone, &ud);
1055 cloned_default_meth = lt_dup_inc(MY_CXT.default_meth, &ud);
1056 lt_ptable_clone_ud_deinit(ud);
1063 MY_CXT.owner = aTHX;
1065 MY_CXT.default_meth = cloned_default_meth;
1067 gv = gv_fetchpv(__PACKAGE__ "::_THREAD_CLEANUP", 0, SVt_PVCV);
1073 if (!av_store(PL_endav, av_len(PL_endav) + 1, (SV *) cv))
1075 sv_magicext((SV *) PL_endav, NULL, PERL_MAGIC_ext, <_endav_vtbl, NULL, 0);
1080 _THREAD_CLEANUP(...)
1083 lt_thread_cleanup(aTHX_ NULL);
1092 RETVAL = lt_tag(value);