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);
266 ptable_seen_free(MY_CXT.seen);
267 SvREFCNT_dec(MY_CXT.default_meth);
270 STATIC int lt_endav_free(pTHX_ SV *sv, MAGIC *mg) {
271 SAVEDESTRUCTOR_X(lt_thread_cleanup, NULL);
276 STATIC MGVTBL lt_endav_vtbl = {
293 #endif /* LT_THREADSAFE */
295 /* ... Hint tags ........................................................... */
297 #if LT_WORKAROUND_REQUIRE_PROPAGATION
299 STATIC IV lt_require_tag(pTHX) {
300 #define lt_require_tag() lt_require_tag(aTHX)
301 const CV *cv, *outside;
306 /* If for some reason the pragma is operational at run-time, try to discover
307 * the current cv in use. */
310 for (si = PL_curstackinfo; si; si = si->si_prev) {
313 for (cxix = si->si_cxix; cxix >= 0; --cxix) {
314 const PERL_CONTEXT *cx = si->si_cxstack + cxix;
316 switch (CxTYPE(cx)) {
319 /* The propagation workaround is only needed up to 5.10.0 and at that
320 * time format and sub contexts were still identical. And even later the
321 * cv members offsets should have been kept the same. */
323 goto get_enclosing_cv;
325 cv = cx->blk_eval.cv;
326 goto get_enclosing_cv;
337 for (outside = CvOUTSIDE(cv); outside; outside = CvOUTSIDE(cv))
343 #endif /* LT_WORKAROUND_REQUIRE_PROPAGATION */
345 STATIC SV *lt_tag(pTHX_ SV *value) {
346 #define lt_tag(V) lt_tag(aTHX_ (V))
352 if (SvTYPE(value) >= SVt_PVCV) {
354 SvREFCNT_inc_simple_void_NN(code);
359 h = PerlMemShared_malloc(sizeof *h);
361 # if LT_WORKAROUND_REQUIRE_PROPAGATION
362 h->require_tag = lt_require_tag();
363 # endif /* LT_WORKAROUND_REQUIRE_PROPAGATION */
364 #else /* LT_HINT_STRUCT */
366 #endif /* !LT_HINT_STRUCT */
371 /* We only need for the key to be an unique tag for looking up the value later
372 * Allocated memory provides convenient unique identifiers, so that's why we
373 * use the hint as the key itself. */
374 ptable_hints_store(MY_CXT.tbl, h, h);
376 #endif /* LT_THREADSAFE */
378 return newSViv(PTR2IV(h));
381 STATIC SV *lt_detag(pTHX_ const SV *hint) {
382 #define lt_detag(H) lt_detag(aTHX_ (H))
388 if (!(hint && SvIOK(hint)))
391 h = INT2PTR(lt_hint_t *, SvIVX(hint));
393 h = ptable_fetch(MY_CXT.tbl, h);
394 #endif /* LT_THREADSAFE */
395 #if LT_WORKAROUND_REQUIRE_PROPAGATION
396 if (lt_require_tag() != h->require_tag)
398 #endif /* LT_WORKAROUND_REQUIRE_PROPAGATION */
400 return LT_HINT_CODE(h);
403 STATIC U32 lt_hash = 0;
405 STATIC SV *lt_hint(pTHX) {
406 #define lt_hint() lt_hint(aTHX)
408 #ifdef cop_hints_fetch_pvn
409 hint = cop_hints_fetch_pvn(PL_curcop, __PACKAGE__, __PACKAGE_LEN__, lt_hash,0);
410 #elif LT_HAS_PERL(5, 9, 5)
411 hint = Perl_refcounted_he_fetch(aTHX_ PL_curcop->cop_hints_hash,
413 __PACKAGE__, __PACKAGE_LEN__,
417 SV **val = hv_fetch(GvHV(PL_hintgv), __PACKAGE__, __PACKAGE_LEN__, 0);
422 return lt_detag(hint);
425 /* ... op => info map ...................................................... */
427 #define PTABLE_NAME ptable_map
428 #define PTABLE_VAL_FREE(V) PerlMemShared_free(V)
432 /* PerlMemShared_free() needs the [ap]PTBLMS_? default values */
433 #define ptable_map_store(T, K, V) ptable_map_store(aPTBLMS_ (T), (K), (V))
434 #define ptable_map_delete(T, K) ptable_map_delete(aPTBLMS_ (T), (K))
438 STATIC perl_mutex lt_op_map_mutex;
440 #define LT_LOCK(M) MUTEX_LOCK(M)
441 #define LT_UNLOCK(M) MUTEX_UNLOCK(M)
443 #else /* USE_ITHREADS */
448 #endif /* !USE_ITHREADS */
450 STATIC ptable *lt_op_padxv_map = NULL;
455 STRLEN buf_size, orig_pkg_len, type_pkg_len, type_meth_len;
457 #else /* MULTIPLICITY */
461 #endif /* !MULTIPLICITY */
464 STATIC void lt_op_padxv_info_call(pTHX_ const lt_op_padxv_info *oi, SV *sv) {
465 #define lt_op_padxv_info_call(O, S) lt_op_padxv_info_call(aTHX_ (O), (S))
466 SV *orig_pkg, *type_pkg, *type_meth;
475 STRLEN op_len = oi->orig_pkg_len, tp_len = oi->type_pkg_len;
477 orig_pkg = sv_2mortal(newSVpvn(buf, op_len));
478 SvREADONLY_on(orig_pkg);
480 type_pkg = sv_2mortal(newSVpvn(buf, tp_len));
481 SvREADONLY_on(type_pkg);
483 type_meth = sv_2mortal(newSVpvn(buf, oi->type_meth_len));
484 SvREADONLY_on(type_meth);
486 #else /* MULTIPLICITY */
487 orig_pkg = oi->orig_pkg;
488 type_pkg = oi->type_pkg;
489 type_meth = oi->type_meth;
490 #endif /* !MULTIPLICITY */
499 items = call_sv(type_meth, G_ARRAY | G_METHOD);
509 croak("Typed scalar initializer method should return zero or one scalar, but got %d", items);
519 STATIC void lt_padxv_map_store(pTHX_ const OP *o, SV *orig_pkg, SV *type_pkg, SV *type_meth, OP *(*old_pp)(pTHX)) {
520 #define lt_padxv_map_store(O, OP, TP, TM, PP) lt_padxv_map_store(aTHX_ (O), (OP), (TP), (TM), (PP))
521 lt_op_padxv_info *oi;
523 LT_LOCK(<_op_map_mutex);
525 if (!(oi = ptable_fetch(lt_op_padxv_map, o))) {
526 oi = PerlMemShared_malloc(sizeof *oi);
527 ptable_map_store(lt_op_padxv_map, o, oi);
531 #else /* MULTIPLICITY */
533 SvREFCNT_dec(oi->orig_pkg);
534 SvREFCNT_dec(oi->type_pkg);
535 SvREFCNT_dec(oi->type_meth);
536 #endif /* !MULTIPLICITY */
541 STRLEN op_len = SvCUR(orig_pkg);
542 STRLEN tp_len = SvCUR(type_pkg);
543 STRLEN tm_len = SvCUR(type_meth);
544 STRLEN new_buf_size = op_len + tp_len + tm_len;
546 if (new_buf_size > oi->buf_size) {
547 PerlMemShared_free(oi->buf);
548 oi->buf = PerlMemShared_malloc(new_buf_size);
549 oi->buf_size = new_buf_size;
552 Copy(SvPVX(orig_pkg), buf, op_len, char);
554 Copy(SvPVX(type_pkg), buf, tp_len, char);
556 Copy(SvPVX(type_meth), buf, tm_len, char);
557 oi->orig_pkg_len = op_len;
558 oi->type_pkg_len = tp_len;
559 oi->type_meth_len = tm_len;
560 SvREFCNT_dec(orig_pkg);
561 SvREFCNT_dec(type_pkg);
562 SvREFCNT_dec(type_meth);
564 #else /* MULTIPLICITY */
565 oi->orig_pkg = orig_pkg;
566 oi->type_pkg = type_pkg;
567 oi->type_meth = type_meth;
568 #endif /* !MULTIPLICITY */
572 LT_UNLOCK(<_op_map_mutex);
575 STATIC const lt_op_padxv_info *lt_padxv_map_fetch(const OP *o, lt_op_padxv_info *oi) {
576 const lt_op_padxv_info *val;
578 LT_LOCK(<_op_map_mutex);
580 val = ptable_fetch(lt_op_padxv_map, o);
586 LT_UNLOCK(<_op_map_mutex);
591 #if LT_HAS_PERL(5, 17, 6)
593 STATIC ptable *lt_op_padrange_map = NULL;
597 const OP *padxv_start;
598 } lt_op_padrange_info;
600 STATIC void lt_padrange_map_store(pTHX_ const OP *o, const OP *s, OP *(*old_pp)(pTHX)) {
601 #define lt_padrange_map_store(O, S, PP) lt_padrange_map_store(aTHX_ (O), (S), (PP))
602 lt_op_padrange_info *oi;
604 LT_LOCK(<_op_map_mutex);
606 if (!(oi = ptable_fetch(lt_op_padrange_map, o))) {
607 oi = PerlMemShared_malloc(sizeof *oi);
608 ptable_map_store(lt_op_padrange_map, o, oi);
614 LT_UNLOCK(<_op_map_mutex);
617 STATIC const lt_op_padrange_info *lt_padrange_map_fetch(const OP *o, lt_op_padrange_info *oi) {
618 const lt_op_padrange_info *val;
620 LT_LOCK(<_op_map_mutex);
622 val = ptable_fetch(lt_op_padrange_map, o);
628 LT_UNLOCK(<_op_map_mutex);
635 STATIC void lt_map_delete(pTHX_ const OP *o) {
636 #define lt_map_delete(O) lt_map_delete(aTHX_ (O))
637 LT_LOCK(<_op_map_mutex);
639 ptable_map_delete(lt_op_padxv_map, o);
640 #if LT_HAS_PERL(5, 17, 6)
641 ptable_map_delete(lt_op_padrange_map, o);
644 LT_UNLOCK(<_op_map_mutex);
647 /* --- Hooks --------------------------------------------------------------- */
649 /* ... Our pp_padsv ........................................................ */
651 STATIC OP *lt_pp_padsv(pTHX) {
654 if (lt_padxv_map_fetch(PL_op, &oi)) {
656 lt_op_padxv_info_call(&oi, TARG);
657 return oi.old_pp(aTHX);
660 return PL_op->op_ppaddr(aTHX);
663 /* ... Our pp_padrange (on perl 5.17.6 and above) .......................... */
665 #if LT_HAS_PERL(5, 17, 6)
667 STATIC OP *lt_pp_padrange(pTHX) {
668 lt_op_padrange_info roi;
670 if (lt_padrange_map_fetch(PL_op, &roi)) {
671 PADOFFSET i, base, count;
674 base = PL_op->op_targ;
675 count = PL_op->op_private & OPpPADRANGE_COUNTMASK;
677 for (i = 0, p = roi.padxv_start; i < count && p; ++i, p = p->op_sibling) {
679 if (p->op_type == OP_PADSV && lt_padxv_map_fetch(p, &oi))
680 lt_op_padxv_info_call(&oi, PAD_SV(base + i));
683 return roi.old_pp(aTHX);
686 return PL_op->op_ppaddr(aTHX);
691 /* ... Our ck_pad{any,sv} .................................................. */
693 /* Sadly, the padsv OPs we are interested in don't trigger the padsv check
694 * function, but are instead manually mutated from a padany. So we store
695 * the op entry in the op map in the padany check function, and we set their
696 * op_ppaddr member in our peephole optimizer replacement below. */
698 STATIC OP *(*lt_old_ck_padany)(pTHX_ OP *) = 0;
700 STATIC OP *lt_ck_padany(pTHX_ OP *o) {
704 o = lt_old_ck_padany(aTHX_ o);
706 stash = PL_in_my_stash;
707 if (stash && (code = lt_hint())) {
709 SV *orig_pkg = newSVpvn(HvNAME_get(stash), HvNAMELEN_get(stash));
710 SV *orig_meth = MY_CXT.default_meth;
712 SV *type_meth = NULL;
717 SvREADONLY_on(orig_pkg);
728 items = call_sv(code, G_ARRAY);
732 croak(__PACKAGE__ " mangler should return zero, one or two scalars, but got %d", items);
734 SvREFCNT_dec(orig_pkg);
743 type_meth = newSVsv(rsv);
744 SvREADONLY_on(type_meth);
749 type_pkg = newSVsv(rsv);
750 SvREADONLY_on(type_pkg);
760 SvREFCNT_inc_simple_void_NN(orig_pkg);
764 type_meth = orig_meth;
765 SvREFCNT_inc_simple_void_NN(orig_meth);
768 lt_padxv_map_store(o, orig_pkg, type_pkg, type_meth, o->op_ppaddr);
777 STATIC OP *(*lt_old_ck_padsv)(pTHX_ OP *) = 0;
779 STATIC OP *lt_ck_padsv(pTHX_ OP *o) {
782 return lt_old_ck_padsv(aTHX_ o);
785 /* ... Our peephole optimizer .............................................. */
787 #if LT_HAS_PERL(5, 17, 6)
789 STATIC int lt_maybe_padrange_setup(pTHX_ OP *o, const OP *start) {
790 #define lt_maybe_padrange_setup(O, S) lt_maybe_padrange_setup(aTHX_ (O), (S))
794 count = o->op_private & OPpPADRANGE_COUNTMASK;
796 for (i = 0, p = start; i < count && p; ++i, p = p->op_sibling) {
797 if (p->op_type == OP_PADSV) {
798 /* In a padrange sequence, either all lexicals are typed, or none are.
799 * Thus we can stop at the first padsv op. However, note that these
800 * lexicals can need to call different methods in different packages. */
801 LT_LOCK(<_op_map_mutex);
802 if (ptable_fetch(lt_op_padxv_map, p)) {
803 LT_UNLOCK(<_op_map_mutex);
804 lt_padrange_map_store(o, start, o->op_ppaddr);
805 o->op_ppaddr = lt_pp_padrange;
807 LT_UNLOCK(<_op_map_mutex);
818 STATIC peep_t lt_old_peep = 0; /* This is actually the rpeep past 5.13.5 */
820 STATIC void lt_peep_rec(pTHX_ OP *o, ptable *seen) {
821 #define lt_peep_rec(O) lt_peep_rec(aTHX_ (O), seen)
822 for (; o; o = o->op_next) {
823 if (ptable_fetch(seen, o))
825 ptable_seen_store(seen, o, o);
827 switch (o->op_type) {
829 if (o->op_ppaddr != lt_pp_padsv && o->op_private & OPpLVAL_INTRO) {
830 lt_op_padxv_info *oi;
831 LT_LOCK(<_op_map_mutex);
832 oi = ptable_fetch(lt_op_padxv_map, o);
834 oi->old_pp = o->op_ppaddr;
835 o->op_ppaddr = lt_pp_padsv;
837 LT_UNLOCK(<_op_map_mutex);
840 #if LT_HAS_PERL(5, 17, 6)
842 /* We deal with special padrange ops later, in the aassign op they belong
844 if (o->op_ppaddr != lt_pp_padrange && o->op_private & OPpLVAL_INTRO
845 && !(o->op_flags & OPf_SPECIAL)) {
846 /* A padrange op is guaranteed to have previously been a pushmark.
847 * Moreover, for non-special padrange ops (i.e. that aren't for
848 * my (...) = @_), the original padxv ops are its siblings. */
849 lt_maybe_padrange_setup(o, o->op_sibling);
854 if (cBINOPo->op_first && cBINOPo->op_first->op_flags & OPf_KIDS
855 && (op = cUNOPx(cBINOPo->op_first)->op_first)
856 && op->op_type == OP_PADRANGE
857 && op->op_ppaddr != lt_pp_padrange
858 && op->op_private & OPpLVAL_INTRO
859 && op->op_flags & OPf_SPECIAL) {
860 const OP *start = cUNOPx(cBINOPo->op_last)->op_first;
861 if (start->op_type == OP_PUSHMARK)
862 start = start->op_sibling;
863 lt_maybe_padrange_setup(op, start);
877 # if LT_HAS_PERL(5, 10, 0)
882 lt_peep_rec(cLOGOPo->op_other);
886 lt_peep_rec(cLOOPo->op_redoop);
887 lt_peep_rec(cLOOPo->op_nextop);
888 lt_peep_rec(cLOOPo->op_lastop);
890 # if LT_HAS_PERL(5, 9, 5)
892 lt_peep_rec(cPMOPo->op_pmstashstartu.op_pmreplstart);
898 lt_peep_rec(cPMOPo->op_pmreplstart);
901 #endif /* !LT_HAS_RPEEP */
908 STATIC void lt_peep(pTHX_ OP *o) {
910 ptable *seen = MY_CXT.seen;
912 lt_old_peep(aTHX_ o);
914 ptable_seen_clear(seen);
916 ptable_seen_clear(seen);
919 /* --- Interpreter setup/teardown ------------------------------------------ */
922 STATIC U32 lt_initialized = 0;
924 STATIC void lt_teardown(pTHX_ void *root) {
936 ptable_hints_free(MY_CXT.tbl);
938 ptable_seen_free(MY_CXT.seen);
939 SvREFCNT_dec(MY_CXT.default_meth);
942 lt_ck_restore(OP_PADANY, <_old_ck_padany);
943 lt_ck_restore(OP_PADSV, <_old_ck_padsv);
946 PL_rpeepp = lt_old_peep;
948 PL_peepp = lt_old_peep;
955 STATIC void lt_setup(pTHX) {
956 #define lt_setup() lt_setup(aTHX)
963 MY_CXT.tbl = ptable_new();
966 MY_CXT.seen = ptable_new();
967 MY_CXT.default_meth = newSVpvn("TYPEDSCALAR", 11);
968 SvREADONLY_on(MY_CXT.default_meth);
971 lt_ck_replace(OP_PADANY, lt_ck_padany, <_old_ck_padany);
972 lt_ck_replace(OP_PADSV, lt_ck_padsv, <_old_ck_padsv);
975 lt_old_peep = PL_rpeepp;
978 lt_old_peep = PL_peepp;
983 call_atexit(lt_teardown, aTHX);
985 call_atexit(lt_teardown, NULL);
991 STATIC U32 lt_booted = 0;
993 /* --- XS ------------------------------------------------------------------ */
995 MODULE = Lexical::Types PACKAGE = Lexical::Types
1004 lt_op_padxv_map = ptable_new();
1005 #if LT_HAS_PERL(5, 17, 6)
1006 lt_op_padrange_map = ptable_new();
1009 MUTEX_INIT(<_op_map_mutex);
1012 PERL_HASH(lt_hash, __PACKAGE__, __PACKAGE_LEN__);
1014 stash = gv_stashpvn(__PACKAGE__, __PACKAGE_LEN__, 1);
1015 newCONSTSUB(stash, "LT_THREADSAFE", newSVuv(LT_THREADSAFE));
1016 newCONSTSUB(stash, "LT_FORKSAFE", newSVuv(LT_FORKSAFE));
1030 SV *cloned_default_meth;
1035 lt_ptable_clone_ud ud;
1039 lt_ptable_clone_ud_init(ud, t, MY_CXT.owner);
1040 ptable_walk(MY_CXT.tbl, lt_ptable_clone, &ud);
1041 cloned_default_meth = lt_dup_inc(MY_CXT.default_meth, &ud);
1042 lt_ptable_clone_ud_deinit(ud);
1049 MY_CXT.owner = aTHX;
1051 MY_CXT.default_meth = cloned_default_meth;
1053 gv = gv_fetchpv(__PACKAGE__ "::_THREAD_CLEANUP", 0, SVt_PVCV);
1059 if (!av_store(PL_endav, av_len(PL_endav) + 1, (SV *) cv))
1061 sv_magicext((SV *) PL_endav, NULL, PERL_MAGIC_ext, <_endav_vtbl, NULL, 0);
1066 _THREAD_CLEANUP(...)
1069 lt_thread_cleanup(aTHX_ NULL);
1078 RETVAL = lt_tag(value);