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))
44 # define OpSIBLING(O) OP_SIBLING(O)
46 # define OpSIBLING(O) ((O)->op_sibling)
50 #ifndef SvREFCNT_inc_simple_void_NN
51 # define SvREFCNT_inc_simple_void_NN(S) ((void) SvREFCNT_inc(S))
54 /* ... Thread safety and multiplicity ...................................... */
56 /* Safe unless stated otherwise in Makefile.PL */
58 # define LT_FORKSAFE 1
61 #ifndef LT_MULTIPLICITY
62 # if defined(MULTIPLICITY) || defined(PERL_IMPLICIT_CONTEXT)
63 # define LT_MULTIPLICITY 1
65 # define LT_MULTIPLICITY 0
70 # define tTHX PerlInterpreter*
73 #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))
74 # define LT_THREADSAFE 1
76 # define MY_CXT_CLONE \
78 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1)); \
79 Copy(INT2PTR(my_cxt_t*, SvUV(my_cxt_sv)), my_cxtp, 1, my_cxt_t); \
80 sv_setuv(my_cxt_sv, PTR2UV(my_cxtp))
83 # define LT_THREADSAFE 0
85 # define dMY_CXT dNOOP
87 # define MY_CXT lt_globaldata
89 # define START_MY_CXT STATIC my_cxt_t MY_CXT;
91 # define MY_CXT_INIT NOOP
93 # define MY_CXT_CLONE NOOP
104 #if defined(OP_CHECK_MUTEX_LOCK) && defined(OP_CHECK_MUTEX_UNLOCK)
105 # define LT_CHECK_MUTEX_LOCK OP_CHECK_MUTEX_LOCK
106 # define LT_CHECK_MUTEX_UNLOCK OP_CHECK_MUTEX_UNLOCK
108 # define LT_CHECK_MUTEX_LOCK OP_REFCNT_LOCK
109 # define LT_CHECK_MUTEX_UNLOCK OP_REFCNT_UNLOCK
112 typedef OP *(*lt_ck_t)(pTHX_ OP *);
114 #ifdef wrap_op_checker
116 # define lt_ck_replace(T, NC, OCP) wrap_op_checker((T), (NC), (OCP))
120 static void lt_ck_replace(pTHX_ OPCODE type, lt_ck_t new_ck, lt_ck_t *old_ck_p){
121 #define lt_ck_replace(T, NC, OCP) lt_ck_replace(aTHX_ (T), (NC), (OCP))
124 *old_ck_p = PL_check[type];
125 PL_check[type] = new_ck;
127 LT_CHECK_MUTEX_UNLOCK;
132 static void lt_ck_restore(pTHX_ OPCODE type, lt_ck_t *old_ck_p) {
133 #define lt_ck_restore(T, OCP) lt_ck_restore(aTHX_ (T), (OCP))
136 PL_check[type] = *old_ck_p;
139 LT_CHECK_MUTEX_UNLOCK;
142 /* --- Helpers ------------------------------------------------------------- */
144 /* ... Thread-safe hints ................................................... */
146 #if LT_WORKAROUND_REQUIRE_PROPAGATION
153 #define LT_HINT_STRUCT 1
155 #define LT_HINT_CODE(H) ((H)->code)
157 #define LT_HINT_FREE(H) { \
158 lt_hint_t *h = (H); \
159 SvREFCNT_dec(h->code); \
160 PerlMemShared_free(h); \
163 #else /* LT_WORKAROUND_REQUIRE_PROPAGATION */
165 typedef SV lt_hint_t;
167 #define LT_HINT_STRUCT 0
169 #define LT_HINT_CODE(H) (H)
171 #define LT_HINT_FREE(H) SvREFCNT_dec(H);
173 #endif /* !LT_WORKAROUND_REQUIRE_PROPAGATION */
177 #define PTABLE_NAME ptable_hints
178 #define PTABLE_VAL_FREE(V) LT_HINT_FREE(V)
179 #define PTABLE_NEED_DELETE 0
180 #define PTABLE_NEED_WALK 1
189 #define ptable_hints_store(T, K, V) ptable_hints_store(aTHX_ (T), (K), (V))
190 #define ptable_hints_free(T) ptable_hints_free(aTHX_ (T))
192 #endif /* LT_THREADSAFE */
194 /* ... "Seen" pointer table ................................................ */
196 #define PTABLE_NAME ptable_seen
197 #define PTABLE_NEED_DELETE 0
198 #define PTABLE_NEED_WALK 0
202 /* PerlMemShared_free() needs the [ap]PTBLMS_? default values */
203 #define ptable_seen_store(T, K, V) ptable_seen_store(aPTBLMS_ (T), (K), (V))
204 #define ptable_seen_clear(T) ptable_seen_clear(aPTBLMS_ (T))
205 #define ptable_seen_free(T) ptable_seen_free(aPTBLMS_ (T))
207 /* ... Global data ......................................................... */
209 #define MY_CXT_KEY __PACKAGE__ "::_guts" XS_VERSION
213 ptable *tbl; /* It really is a ptable_hints */
216 ptable *seen; /* It really is a ptable_seen */
222 /* ... Cloning global data ................................................. */
228 #if LT_HAS_PERL(5, 13, 2)
229 CLONE_PARAMS *params;
233 } lt_ptable_clone_ud;
235 #if LT_HAS_PERL(5, 13, 2)
236 # define lt_ptable_clone_ud_init(U, T, O) \
238 (U).params = Perl_clone_params_new((O), aTHX)
239 # define lt_ptable_clone_ud_deinit(U) Perl_clone_params_del((U).params)
240 # define lt_dup_inc(S, U) SvREFCNT_inc(sv_dup((S), (U)->params))
242 # define lt_ptable_clone_ud_init(U, T, O) \
244 (U).params.stashes = newAV(); \
245 (U).params.flags = 0; \
246 (U).params.proto_perl = (O)
247 # define lt_ptable_clone_ud_deinit(U) SvREFCNT_dec((U).params.stashes)
248 # define lt_dup_inc(S, U) SvREFCNT_inc(sv_dup((S), &((U)->params)))
251 static void lt_ptable_clone(pTHX_ ptable_ent *ent, void *ud_) {
252 lt_ptable_clone_ud *ud = ud_;
253 lt_hint_t *h1 = ent->val;
258 h2 = PerlMemShared_malloc(sizeof *h2);
259 h2->code = lt_dup_inc(h1->code, ud);
260 #if LT_WORKAROUND_REQUIRE_PROPAGATION
261 h2->require_tag = PTR2IV(lt_dup_inc(INT2PTR(SV *, h1->require_tag), ud));
264 #else /* LT_HINT_STRUCT */
266 h2 = lt_dup_inc(h1, ud);
268 #endif /* !LT_HINT_STRUCT */
270 ptable_hints_store(ud->tbl, ent->key, h2);
273 static void lt_thread_cleanup(pTHX_ void *ud) {
276 ptable_hints_free(MY_CXT.tbl);
278 ptable_seen_free(MY_CXT.seen);
280 SvREFCNT_dec(MY_CXT.default_meth);
281 MY_CXT.default_meth = NULL;
284 static int lt_endav_free(pTHX_ SV *sv, MAGIC *mg) {
285 SAVEDESTRUCTOR_X(lt_thread_cleanup, NULL);
290 static MGVTBL lt_endav_vtbl = {
307 #endif /* LT_THREADSAFE */
309 /* ... Hint tags ........................................................... */
311 #if LT_WORKAROUND_REQUIRE_PROPAGATION
313 static IV lt_require_tag(pTHX) {
314 #define lt_require_tag() lt_require_tag(aTHX)
315 const CV *cv, *outside;
320 /* If for some reason the pragma is operational at run-time, try to discover
321 * the current cv in use. */
324 for (si = PL_curstackinfo; si; si = si->si_prev) {
327 for (cxix = si->si_cxix; cxix >= 0; --cxix) {
328 const PERL_CONTEXT *cx = si->si_cxstack + cxix;
330 switch (CxTYPE(cx)) {
333 /* The propagation workaround is only needed up to 5.10.0 and at that
334 * time format and sub contexts were still identical. And even later the
335 * cv members offsets should have been kept the same. */
337 goto get_enclosing_cv;
339 cv = cx->blk_eval.cv;
340 goto get_enclosing_cv;
351 for (outside = CvOUTSIDE(cv); outside; outside = CvOUTSIDE(cv))
357 #endif /* LT_WORKAROUND_REQUIRE_PROPAGATION */
359 static SV *lt_tag(pTHX_ SV *value) {
360 #define lt_tag(V) lt_tag(aTHX_ (V))
368 #endif /* LT_THREADSAFE */
372 if (SvTYPE(value) >= SVt_PVCV) {
374 SvREFCNT_inc_simple_void_NN(code);
379 h = PerlMemShared_malloc(sizeof *h);
381 # if LT_WORKAROUND_REQUIRE_PROPAGATION
382 h->require_tag = lt_require_tag();
383 # endif /* LT_WORKAROUND_REQUIRE_PROPAGATION */
384 #else /* LT_HINT_STRUCT */
386 #endif /* !LT_HINT_STRUCT */
389 /* We only need for the key to be an unique tag for looking up the value later
390 * Allocated memory provides convenient unique identifiers, so that's why we
391 * use the hint as the key itself. */
392 ptable_hints_store(MY_CXT.tbl, h, h);
393 #endif /* LT_THREADSAFE */
395 return newSViv(PTR2IV(h));
398 static SV *lt_detag(pTHX_ const SV *hint) {
399 #define lt_detag(H) lt_detag(aTHX_ (H))
406 #endif /* LT_THREADSAFE */
408 if (!(hint && SvIOK(hint)))
411 h = INT2PTR(lt_hint_t *, SvIVX(hint));
413 h = ptable_fetch(MY_CXT.tbl, h);
414 #endif /* LT_THREADSAFE */
415 #if LT_WORKAROUND_REQUIRE_PROPAGATION
416 if (lt_require_tag() != h->require_tag)
418 #endif /* LT_WORKAROUND_REQUIRE_PROPAGATION */
420 return LT_HINT_CODE(h);
423 static U32 lt_hash = 0;
425 static SV *lt_hint(pTHX) {
426 #define lt_hint() lt_hint(aTHX)
428 #ifdef cop_hints_fetch_pvn
429 hint = cop_hints_fetch_pvn(PL_curcop, __PACKAGE__, __PACKAGE_LEN__, lt_hash,0);
430 #elif LT_HAS_PERL(5, 9, 5)
431 hint = Perl_refcounted_he_fetch(aTHX_ PL_curcop->cop_hints_hash,
433 __PACKAGE__, __PACKAGE_LEN__,
437 SV **val = hv_fetch(GvHV(PL_hintgv), __PACKAGE__, __PACKAGE_LEN__, 0);
442 return lt_detag(hint);
445 /* ... op => info map ...................................................... */
447 #define PTABLE_NAME ptable_map
448 #define PTABLE_VAL_FREE(V) PerlMemShared_free(V)
449 #define PTABLE_NEED_DELETE 1
450 #define PTABLE_NEED_WALK 0
454 /* PerlMemShared_free() needs the [ap]PTBLMS_? default values */
455 #define ptable_map_store(T, K, V) ptable_map_store(aPTBLMS_ (T), (K), (V))
456 #define ptable_map_delete(T, K) ptable_map_delete(aPTBLMS_ (T), (K))
460 static perl_mutex lt_op_map_mutex;
462 #define LT_LOCK(M) MUTEX_LOCK(M)
463 #define LT_UNLOCK(M) MUTEX_UNLOCK(M)
465 #else /* USE_ITHREADS */
470 #endif /* !USE_ITHREADS */
472 static ptable *lt_op_padxv_map = NULL;
477 STRLEN buf_size, orig_pkg_len, type_pkg_len, type_meth_len;
479 #else /* MULTIPLICITY */
483 #endif /* !MULTIPLICITY */
486 static void lt_op_padxv_info_call(pTHX_ const lt_op_padxv_info *oi, SV *sv) {
487 #define lt_op_padxv_info_call(O, S) lt_op_padxv_info_call(aTHX_ (O), (S))
488 SV *orig_pkg, *type_pkg, *type_meth;
497 STRLEN op_len = oi->orig_pkg_len, tp_len = oi->type_pkg_len;
499 orig_pkg = sv_2mortal(newSVpvn(buf, op_len));
500 SvREADONLY_on(orig_pkg);
502 type_pkg = sv_2mortal(newSVpvn(buf, tp_len));
503 SvREADONLY_on(type_pkg);
505 type_meth = sv_2mortal(newSVpvn(buf, oi->type_meth_len));
506 SvREADONLY_on(type_meth);
508 #else /* MULTIPLICITY */
509 orig_pkg = oi->orig_pkg;
510 type_pkg = oi->type_pkg;
511 type_meth = oi->type_meth;
512 #endif /* !MULTIPLICITY */
521 items = call_sv(type_meth, G_ARRAY | G_METHOD);
531 croak("Typed scalar initializer method should return zero or one scalar, but got %d", items);
541 static void lt_padxv_map_store(pTHX_ const OP *o, SV *orig_pkg, SV *type_pkg, SV *type_meth, OP *(*old_pp)(pTHX)) {
542 #define lt_padxv_map_store(O, OP, TP, TM, PP) lt_padxv_map_store(aTHX_ (O), (OP), (TP), (TM), (PP))
543 lt_op_padxv_info *oi;
545 LT_LOCK(<_op_map_mutex);
547 if (!(oi = ptable_fetch(lt_op_padxv_map, o))) {
548 oi = PerlMemShared_malloc(sizeof *oi);
549 ptable_map_store(lt_op_padxv_map, o, oi);
553 #else /* MULTIPLICITY */
555 SvREFCNT_dec(oi->orig_pkg);
556 SvREFCNT_dec(oi->type_pkg);
557 SvREFCNT_dec(oi->type_meth);
558 #endif /* !MULTIPLICITY */
563 STRLEN op_len = SvCUR(orig_pkg);
564 STRLEN tp_len = SvCUR(type_pkg);
565 STRLEN tm_len = SvCUR(type_meth);
566 STRLEN new_buf_size = op_len + tp_len + tm_len;
568 if (new_buf_size > oi->buf_size) {
569 PerlMemShared_free(oi->buf);
570 oi->buf = PerlMemShared_malloc(new_buf_size);
571 oi->buf_size = new_buf_size;
574 Copy(SvPVX(orig_pkg), buf, op_len, char);
576 Copy(SvPVX(type_pkg), buf, tp_len, char);
578 Copy(SvPVX(type_meth), buf, tm_len, char);
579 oi->orig_pkg_len = op_len;
580 oi->type_pkg_len = tp_len;
581 oi->type_meth_len = tm_len;
582 SvREFCNT_dec(orig_pkg);
583 SvREFCNT_dec(type_pkg);
584 SvREFCNT_dec(type_meth);
586 #else /* MULTIPLICITY */
587 oi->orig_pkg = orig_pkg;
588 oi->type_pkg = type_pkg;
589 oi->type_meth = type_meth;
590 #endif /* !MULTIPLICITY */
594 LT_UNLOCK(<_op_map_mutex);
597 static const lt_op_padxv_info *lt_padxv_map_fetch(const OP *o, lt_op_padxv_info *oi) {
598 const lt_op_padxv_info *val;
600 LT_LOCK(<_op_map_mutex);
602 val = ptable_fetch(lt_op_padxv_map, o);
608 LT_UNLOCK(<_op_map_mutex);
613 #if LT_HAS_PERL(5, 17, 6)
615 static ptable *lt_op_padrange_map = NULL;
619 const OP *padxv_start;
620 } lt_op_padrange_info;
622 static void lt_padrange_map_store(pTHX_ const OP *o, const OP *s, OP *(*old_pp)(pTHX)) {
623 #define lt_padrange_map_store(O, S, PP) lt_padrange_map_store(aTHX_ (O), (S), (PP))
624 lt_op_padrange_info *oi;
626 LT_LOCK(<_op_map_mutex);
628 if (!(oi = ptable_fetch(lt_op_padrange_map, o))) {
629 oi = PerlMemShared_malloc(sizeof *oi);
630 ptable_map_store(lt_op_padrange_map, o, oi);
636 LT_UNLOCK(<_op_map_mutex);
639 static const lt_op_padrange_info *lt_padrange_map_fetch(const OP *o, lt_op_padrange_info *oi) {
640 const lt_op_padrange_info *val;
642 LT_LOCK(<_op_map_mutex);
644 val = ptable_fetch(lt_op_padrange_map, o);
650 LT_UNLOCK(<_op_map_mutex);
657 static void lt_map_delete(pTHX_ const OP *o) {
658 #define lt_map_delete(O) lt_map_delete(aTHX_ (O))
659 LT_LOCK(<_op_map_mutex);
661 ptable_map_delete(lt_op_padxv_map, o);
662 #if LT_HAS_PERL(5, 17, 6)
663 ptable_map_delete(lt_op_padrange_map, o);
666 LT_UNLOCK(<_op_map_mutex);
669 /* --- Hooks --------------------------------------------------------------- */
671 /* ... Our pp_padsv ........................................................ */
673 static OP *lt_pp_padsv(pTHX) {
676 if (lt_padxv_map_fetch(PL_op, &oi)) {
678 lt_op_padxv_info_call(&oi, TARG);
679 return oi.old_pp(aTHX);
682 return PL_op->op_ppaddr(aTHX);
685 /* ... Our pp_padrange (on perl 5.17.6 and above) .......................... */
687 #if LT_HAS_PERL(5, 17, 6)
689 static OP *lt_pp_padrange(pTHX) {
690 lt_op_padrange_info roi;
692 if (lt_padrange_map_fetch(PL_op, &roi)) {
693 PADOFFSET i, base, count;
696 base = PL_op->op_targ;
697 count = PL_op->op_private & OPpPADRANGE_COUNTMASK;
699 for (i = 0, p = roi.padxv_start; i < count && p; ++i, p = p->op_next) {
700 while (p->op_type == OP_NULL)
703 if (p->op_type == OP_PADSV && lt_padxv_map_fetch(p, &oi))
704 lt_op_padxv_info_call(&oi, PAD_SV(base + i));
707 return roi.old_pp(aTHX);
710 return PL_op->op_ppaddr(aTHX);
715 /* ... Our ck_pad{any,sv} .................................................. */
717 /* Sadly, the padsv OPs we are interested in don't trigger the padsv check
718 * function, but are instead manually mutated from a padany. So we store
719 * the op entry in the op map in the padany check function, and we set their
720 * op_ppaddr member in our peephole optimizer replacement below. */
722 static OP *(*lt_old_ck_padany)(pTHX_ OP *) = 0;
724 static OP *lt_ck_padany(pTHX_ OP *o) {
728 o = lt_old_ck_padany(aTHX_ o);
730 stash = PL_in_my_stash;
731 if (stash && (code = lt_hint())) {
733 SV *orig_pkg = newSVpvn(HvNAME_get(stash), HvNAMELEN_get(stash));
734 SV *orig_meth = MY_CXT.default_meth; /* Guarded by lt_hint() */
736 SV *type_meth = NULL;
741 SvREADONLY_on(orig_pkg);
752 items = call_sv(code, G_ARRAY);
756 croak(__PACKAGE__ " mangler should return zero, one or two scalars, but got %d", items);
758 SvREFCNT_dec(orig_pkg);
767 type_meth = newSVsv(rsv);
768 SvREADONLY_on(type_meth);
773 type_pkg = newSVsv(rsv);
774 SvREADONLY_on(type_pkg);
784 SvREFCNT_inc_simple_void_NN(orig_pkg);
788 type_meth = orig_meth;
789 SvREFCNT_inc_simple_void_NN(orig_meth);
792 lt_padxv_map_store(o, orig_pkg, type_pkg, type_meth, o->op_ppaddr);
801 static OP *(*lt_old_ck_padsv)(pTHX_ OP *) = 0;
803 static OP *lt_ck_padsv(pTHX_ OP *o) {
806 return lt_old_ck_padsv(aTHX_ o);
809 /* ... Our peephole optimizer .............................................. */
811 #if LT_HAS_PERL(5, 17, 6)
813 static int lt_maybe_padrange_setup(pTHX_ OP *o, const OP *start) {
814 #define lt_maybe_padrange_setup(O, S) lt_maybe_padrange_setup(aTHX_ (O), (S))
818 count = o->op_private & OPpPADRANGE_COUNTMASK;
820 for (i = 0, p = start; i < count && p; ++i, p = p->op_next) {
821 if (p->op_type == OP_PADSV) {
822 /* In a padrange sequence, either all lexicals are typed, or none are.
823 * Thus we can stop at the first padsv op. However, note that these
824 * lexicals can need to call different methods in different packages. */
825 LT_LOCK(<_op_map_mutex);
826 if (ptable_fetch(lt_op_padxv_map, p)) {
827 LT_UNLOCK(<_op_map_mutex);
828 lt_padrange_map_store(o, start, o->op_ppaddr);
829 o->op_ppaddr = lt_pp_padrange;
831 LT_UNLOCK(<_op_map_mutex);
842 static peep_t lt_old_peep = 0; /* This is actually the rpeep past 5.13.5 */
844 static void lt_peep_rec(pTHX_ OP *o, ptable *seen) {
845 #define lt_peep_rec(O) lt_peep_rec(aTHX_ (O), seen)
846 for (; o; o = o->op_next) {
847 if (ptable_fetch(seen, o))
849 ptable_seen_store(seen, o, o);
851 switch (o->op_type) {
853 if (o->op_ppaddr != lt_pp_padsv && o->op_private & OPpLVAL_INTRO) {
854 lt_op_padxv_info *oi;
855 LT_LOCK(<_op_map_mutex);
856 oi = ptable_fetch(lt_op_padxv_map, o);
858 oi->old_pp = o->op_ppaddr;
859 o->op_ppaddr = lt_pp_padsv;
861 LT_UNLOCK(<_op_map_mutex);
864 #if LT_HAS_PERL(5, 17, 6)
866 /* We deal with special padrange ops later, in the aassign op they belong
868 if (o->op_ppaddr != lt_pp_padrange && o->op_private & OPpLVAL_INTRO
869 && !(o->op_flags & OPf_SPECIAL)) {
870 /* A padrange op is guaranteed to have previously been a pushmark.
871 * Moreover, for non-special padrange ops (i.e. that aren't for
872 * my (...) = @_), the first original padxv is its sibling or nephew.
874 OP *kid = OpSIBLING(o);
875 if (kid->op_type == OP_NULL && kid->op_flags & OPf_KIDS) {
876 kid = kUNOP->op_first;
877 if (kid->op_type == OP_NULL)
878 kid = OpSIBLING(kid);
880 lt_maybe_padrange_setup(o, kid);
885 if (cBINOPo->op_first && cBINOPo->op_first->op_flags & OPf_KIDS
886 && (op = cUNOPx(cBINOPo->op_first)->op_first)
887 && op->op_type == OP_PADRANGE
888 && op->op_ppaddr != lt_pp_padrange
889 && op->op_private & OPpLVAL_INTRO
890 && op->op_flags & OPf_SPECIAL) {
891 const OP *start = cUNOPx(cBINOPo->op_last)->op_first;
892 if (start->op_type == OP_PUSHMARK)
893 start = OpSIBLING(start);
894 lt_maybe_padrange_setup(op, start);
908 # if LT_HAS_PERL(5, 10, 0)
913 lt_peep_rec(cLOGOPo->op_other);
917 lt_peep_rec(cLOOPo->op_redoop);
918 lt_peep_rec(cLOOPo->op_nextop);
919 lt_peep_rec(cLOOPo->op_lastop);
921 # if LT_HAS_PERL(5, 9, 5)
923 lt_peep_rec(cPMOPo->op_pmstashstartu.op_pmreplstart);
929 lt_peep_rec(cPMOPo->op_pmreplstart);
932 #endif /* !LT_HAS_RPEEP */
939 static void lt_peep(pTHX_ OP *o) {
941 ptable *seen = MY_CXT.seen;
943 lt_old_peep(aTHX_ o);
946 ptable_seen_clear(seen);
948 ptable_seen_clear(seen);
952 /* --- Interpreter setup/teardown ------------------------------------------ */
955 static U32 lt_initialized = 0;
957 static void lt_teardown(pTHX_ void *root) {
969 ptable_hints_free(MY_CXT.tbl);
972 ptable_seen_free(MY_CXT.seen);
974 SvREFCNT_dec(MY_CXT.default_meth);
975 MY_CXT.default_meth = NULL;
978 lt_ck_restore(OP_PADANY, <_old_ck_padany);
979 lt_ck_restore(OP_PADSV, <_old_ck_padsv);
982 PL_rpeepp = lt_old_peep;
984 PL_peepp = lt_old_peep;
991 static void lt_setup(pTHX) {
992 #define lt_setup() lt_setup(aTHX)
999 MY_CXT.tbl = ptable_new();
1000 MY_CXT.owner = aTHX;
1002 MY_CXT.seen = ptable_new();
1003 MY_CXT.default_meth = newSVpvn("TYPEDSCALAR", 11);
1004 SvREADONLY_on(MY_CXT.default_meth);
1007 lt_ck_replace(OP_PADANY, lt_ck_padany, <_old_ck_padany);
1008 lt_ck_replace(OP_PADSV, lt_ck_padsv, <_old_ck_padsv);
1011 lt_old_peep = PL_rpeepp;
1012 PL_rpeepp = lt_peep;
1014 lt_old_peep = PL_peepp;
1019 call_atexit(lt_teardown, aTHX);
1021 call_atexit(lt_teardown, NULL);
1027 static U32 lt_booted = 0;
1029 /* --- XS ------------------------------------------------------------------ */
1031 MODULE = Lexical::Types PACKAGE = Lexical::Types
1040 lt_op_padxv_map = ptable_new();
1041 #if LT_HAS_PERL(5, 17, 6)
1042 lt_op_padrange_map = ptable_new();
1045 MUTEX_INIT(<_op_map_mutex);
1048 PERL_HASH(lt_hash, __PACKAGE__, __PACKAGE_LEN__);
1050 stash = gv_stashpvn(__PACKAGE__, __PACKAGE_LEN__, 1);
1051 newCONSTSUB(stash, "LT_THREADSAFE", newSVuv(LT_THREADSAFE));
1052 newCONSTSUB(stash, "LT_FORKSAFE", newSVuv(LT_FORKSAFE));
1066 SV *cloned_default_meth;
1071 lt_ptable_clone_ud ud;
1075 lt_ptable_clone_ud_init(ud, t, MY_CXT.owner);
1076 ptable_walk(MY_CXT.tbl, lt_ptable_clone, &ud);
1077 cloned_default_meth = lt_dup_inc(MY_CXT.default_meth, &ud);
1078 lt_ptable_clone_ud_deinit(ud);
1085 MY_CXT.owner = aTHX;
1087 MY_CXT.default_meth = cloned_default_meth;
1089 gv = gv_fetchpv(__PACKAGE__ "::_THREAD_CLEANUP", 0, SVt_PVCV);
1095 if (!av_store(PL_endav, av_len(PL_endav) + 1, (SV *) cv))
1097 sv_magicext((SV *) PL_endav, NULL, PERL_MAGIC_ext, <_endav_vtbl, NULL, 0);
1102 _THREAD_CLEANUP(...)
1105 lt_thread_cleanup(aTHX_ NULL);
1114 RETVAL = lt_tag(value);