X-Git-Url: http://git.vpit.fr/?p=perl%2Fmodules%2FLexical-Types.git;a=blobdiff_plain;f=Types.xs;h=7de168535aa48a10e28178e6dc5c869309203259;hp=0b5b3f5fd1c97f2581f7f2c775bf00d836e2b547;hb=HEAD;hpb=3a70868e5fd2c419e5c78329107019375efc5558 diff --git a/Types.xs b/Types.xs index 0b5b3f5..7de1685 100644 --- a/Types.xs +++ b/Types.xs @@ -6,330 +6,607 @@ #include "perl.h" #include "XSUB.h" -#define __PACKAGE__ "Lexical::Types" -#define __PACKAGE_LEN__ (sizeof(__PACKAGE__)-1) +/* --- XS helpers ---------------------------------------------------------- */ -/* --- Compatibility wrappers ---------------------------------------------- */ +#define XSH_PACKAGE "Lexical::Types" -#define LT_HAS_PERL(R, V, S) (PERL_REVISION > (R) || (PERL_REVISION == (R) && (PERL_VERSION > (V) || (PERL_VERSION == (V) && (PERL_SUBVERSION >= (S)))))) +#include "xsh/caps.h" +#include "xsh/util.h" +#include "xsh/mem.h" +#include "xsh/ops.h" +#include "xsh/peep.h" -#if LT_HAS_PERL(5, 10, 0) || defined(PL_parser) -# ifndef PL_in_my_stash -# define PL_in_my_stash PL_parser->in_my_stash -# endif -#else -# ifndef PL_in_my_stash -# define PL_in_my_stash PL_Iin_my_stash -# endif -#endif +/* ... Lexical hints ....................................................... */ -#ifndef Newx -# define Newx(v, n, c) New(0, v, n, c) -#endif +#define XSH_HINTS_TYPE_SV 1 -#ifndef HvNAME_get -# define HvNAME_get(H) HvNAME(H) -#endif +#include "xsh/hints.h" -#ifndef HvNAMELEN_get -# define HvNAMELEN_get(H) strlen(HvNAME_get(H)) -#endif +#define lt_hint() xsh_hints_detag(xsh_hints_fetch()) -/* --- Helpers ------------------------------------------------------------- */ +/* ... Thread-local storage ................................................ */ -/* ... Hints ............................................................... */ +typedef struct { + SV *default_meth; +} xsh_user_cxt_t; -STATIC U32 lt_hash = 0; +#define XSH_THREADS_COMPILE_TIME_PROTECTION 1 +#define XSH_THREADS_USER_CLONE_NEEDS_DUP 1 -STATIC SV *lt_hint(pTHX) { -#define lt_hint() lt_hint(aTHX) - SV *id; -#if LT_HAS_PERL(5, 10, 0) - id = Perl_refcounted_he_fetch(aTHX_ PL_curcop->cop_hints_hash, - NULL, - __PACKAGE__, __PACKAGE_LEN__, - 0, - lt_hash); -#else - SV **val = hv_fetch(GvHV(PL_hintgv), __PACKAGE__, __PACKAGE_LEN__, lt_hash); - if (!val) - return 0; - id = *val; -#endif - return (id && SvOK(id)) ? id : NULL; +#if XSH_THREADSAFE + +static void xsh_user_clone(pTHX_ const xsh_user_cxt_t *old_cxt, xsh_user_cxt_t *new_cxt, CLONE_PARAMS *params) { + new_cxt->default_meth = xsh_dup_inc(old_cxt->default_meth, params); + + return; } +#endif /* XSH_THREADSAFE */ + +#include "xsh/threads.h" + /* ... op => info map ...................................................... */ -#define PTABLE_VAL_FREE(V) PerlMemShared_free(V) +#define PTABLE_NAME ptable_map +#define PTABLE_VAL_FREE(V) XSH_SHARED_FREE((V), 0, char) +#define PTABLE_VAL_NEED_CONTEXT 0 +#define PTABLE_NEED_DELETE 1 +#define PTABLE_NEED_WALK 0 -#include "ptable.h" +#include "xsh/ptable.h" -STATIC ptable *lt_op_map = NULL; +#define ptable_map_store(T, K, V) ptable_map_store(aPMS_ (T), (K), (V)) +#define ptable_map_delete(T, K) ptable_map_delete(aPMS_ (T), (K)) +#define ptable_map_free(T) ptable_map_free(aPMS_ (T)) #ifdef USE_ITHREADS -STATIC perl_mutex lt_op_map_mutex; -#endif + +static perl_mutex lt_op_map_mutex; + +#endif /* USE_ITHREADS */ + +static ptable *lt_op_padxv_map = NULL; typedef struct { + OP *(*old_pp)(pTHX); +#ifdef MULTIPLICITY + STRLEN buf_size, orig_pkg_len, type_pkg_len, type_meth_len; + char *buf; +#else /* MULTIPLICITY */ SV *orig_pkg; SV *type_pkg; SV *type_meth; - OP *(*pp_padsv)(pTHX); -} lt_op_info; +#endif /* !MULTIPLICITY */ +} lt_op_padxv_info; + +static void lt_op_padxv_info_call(pTHX_ const lt_op_padxv_info *oi, SV *sv) { +#define lt_op_padxv_info_call(O, S) lt_op_padxv_info_call(aTHX_ (O), (S)) + SV *orig_pkg, *type_pkg, *type_meth; + int items; + dSP; + + ENTER; + SAVETMPS; + +#ifdef MULTIPLICITY + { + STRLEN op_len = oi->orig_pkg_len, tp_len = oi->type_pkg_len; + char *buf = oi->buf; + orig_pkg = sv_2mortal(newSVpvn(buf, op_len)); + SvREADONLY_on(orig_pkg); + buf += op_len; + type_pkg = sv_2mortal(newSVpvn(buf, tp_len)); + SvREADONLY_on(type_pkg); + buf += tp_len; + type_meth = sv_2mortal(newSVpvn(buf, oi->type_meth_len)); + SvREADONLY_on(type_meth); + } +#else /* MULTIPLICITY */ + orig_pkg = oi->orig_pkg; + type_pkg = oi->type_pkg; + type_meth = oi->type_meth; +#endif /* !MULTIPLICITY */ + + PUSHMARK(SP); + EXTEND(SP, 3); + PUSHs(type_pkg); + PUSHs(sv); + PUSHs(orig_pkg); + PUTBACK; + + items = call_sv(type_meth, G_ARRAY | G_METHOD); + + SPAGAIN; + switch (items) { + case 0: + break; + case 1: + sv_setsv(sv, POPs); + break; + default: + croak("Typed scalar initializer method should return zero or one scalar, but got %d", items); + } + PUTBACK; -STATIC void lt_map_store(const OP *o, SV *orig_pkg, SV *type_pkg, SV *type_meth, OP *(*pp_padsv)(pTHX)) { - lt_op_info *oi; + FREETMPS; + LEAVE; -#ifdef USE_ITHREADS - MUTEX_LOCK(<_op_map_mutex); -#endif + return; +} - if (!(oi = ptable_fetch(lt_op_map, o))) { - oi = PerlMemShared_malloc(sizeof *oi); - ptable_store(lt_op_map, o, oi); +static void lt_padxv_map_store(pTHX_ const OP *o, SV *orig_pkg, SV *type_pkg, SV *type_meth, OP *(*old_pp)(pTHX)) { +#define lt_padxv_map_store(O, OP, TP, TM, PP) lt_padxv_map_store(aTHX_ (O), (OP), (TP), (TM), (PP)) + lt_op_padxv_info *oi; + + XSH_LOCK(<_op_map_mutex); + + if (!(oi = ptable_fetch(lt_op_padxv_map, o))) { + XSH_SHARED_ALLOC(oi, 1, lt_op_padxv_info); + ptable_map_store(lt_op_padxv_map, o, oi); +#ifdef MULTIPLICITY + oi->buf = NULL; + oi->buf_size = 0; +#else /* MULTIPLICITY */ + } else { + SvREFCNT_dec(oi->orig_pkg); + SvREFCNT_dec(oi->type_pkg); + SvREFCNT_dec(oi->type_meth); +#endif /* !MULTIPLICITY */ } +#ifdef MULTIPLICITY + { + STRLEN op_len = SvCUR(orig_pkg); + STRLEN tp_len = SvCUR(type_pkg); + STRLEN tm_len = SvCUR(type_meth); + STRLEN new_buf_size = op_len + tp_len + tm_len; + char *buf; + if (new_buf_size > oi->buf_size) { + XSH_SHARED_REALLOC(oi->buf, oi->buf_size, new_buf_size, char); + oi->buf_size = new_buf_size; + } + buf = oi->buf; + Copy(SvPVX(orig_pkg), buf, op_len, char); + buf += op_len; + Copy(SvPVX(type_pkg), buf, tp_len, char); + buf += tp_len; + Copy(SvPVX(type_meth), buf, tm_len, char); + oi->orig_pkg_len = op_len; + oi->type_pkg_len = tp_len; + oi->type_meth_len = tm_len; + SvREFCNT_dec(orig_pkg); + SvREFCNT_dec(type_pkg); + SvREFCNT_dec(type_meth); + } +#else /* MULTIPLICITY */ oi->orig_pkg = orig_pkg; oi->type_pkg = type_pkg; oi->type_meth = type_meth; - oi->pp_padsv = pp_padsv; +#endif /* !MULTIPLICITY */ -#ifdef USE_ITHREADS - MUTEX_UNLOCK(<_op_map_mutex); -#endif + oi->old_pp = old_pp; + + XSH_UNLOCK(<_op_map_mutex); } -STATIC const lt_op_info *lt_map_fetch(const OP *o, lt_op_info *oi) { - const lt_op_info *val; +static const lt_op_padxv_info *lt_padxv_map_fetch(const OP *o, lt_op_padxv_info *oi) { + const lt_op_padxv_info *val; -#ifdef USE_ITHREADS - MUTEX_LOCK(<_op_map_mutex); -#endif + XSH_LOCK(<_op_map_mutex); - val = ptable_fetch(lt_op_map, o); + val = ptable_fetch(lt_op_padxv_map, o); if (val) { *oi = *val; val = oi; } -#ifdef USE_ITHREADS - MUTEX_UNLOCK(<_op_map_mutex); -#endif + XSH_UNLOCK(<_op_map_mutex); return val; } -/* --- Hooks --------------------------------------------------------------- */ +#if XSH_HAS_PERL(5, 17, 6) -/* ... Our pp_padsv ........................................................ */ +static ptable *lt_op_padrange_map = NULL; -STATIC OP *lt_pp_padsv(pTHX) { - lt_op_info oi; +typedef struct { + OP *(*old_pp)(pTHX); + const OP *padxv_start; +} lt_op_padrange_info; - if ((PL_op->op_private & OPpLVAL_INTRO) && lt_map_fetch(PL_op, &oi)) { - PADOFFSET targ = PL_op->op_targ; - SV *sv = PAD_SVl(targ); +static void lt_padrange_map_store(pTHX_ const OP *o, const OP *s, OP *(*old_pp)(pTHX)) { +#define lt_padrange_map_store(O, S, PP) lt_padrange_map_store(aTHX_ (O), (S), (PP)) + lt_op_padrange_info *oi; - if (sv) { - int items; - dSP; + XSH_LOCK(<_op_map_mutex); - ENTER; - SAVETMPS; + if (!(oi = ptable_fetch(lt_op_padrange_map, o))) { + XSH_SHARED_ALLOC(oi, 1, lt_op_padrange_info); + ptable_map_store(lt_op_padrange_map, o, oi); + } - PUSHMARK(SP); - EXTEND(SP, 3); - PUSHs(oi.type_pkg); - PUSHs(sv); - PUSHs(oi.orig_pkg); - PUTBACK; + oi->old_pp = old_pp; + oi->padxv_start = s; - items = call_sv(oi.type_meth, G_ARRAY | G_METHOD); + XSH_UNLOCK(<_op_map_mutex); +} - SPAGAIN; - switch (items) { - case 0: - break; - case 1: - sv_setsv(sv, POPs); - break; - default: - croak("Typed scalar initializer method should return zero or one scalar, but got %d", items); - } - PUTBACK; +static const lt_op_padrange_info *lt_padrange_map_fetch(const OP *o, lt_op_padrange_info *oi) { + const lt_op_padrange_info *val; - FREETMPS; - LEAVE; - } + XSH_LOCK(<_op_map_mutex); - return CALL_FPTR(oi.pp_padsv)(aTHX); + val = ptable_fetch(lt_op_padrange_map, o); + if (val) { + *oi = *val; + val = oi; } - return CALL_FPTR(PL_ppaddr[OP_PADSV])(aTHX); + XSH_UNLOCK(<_op_map_mutex); + + return val; } -STATIC OP *(*lt_pp_padsv_saved)(pTHX) = 0; +#endif + +static void lt_map_delete(pTHX_ const OP *o) { +#define lt_map_delete(O) lt_map_delete(aTHX_ (O)) + XSH_LOCK(<_op_map_mutex); -STATIC void lt_pp_padsv_save(void) { - if (lt_pp_padsv_saved) - return; + ptable_map_delete(lt_op_padxv_map, o); +#if XSH_HAS_PERL(5, 17, 6) + ptable_map_delete(lt_op_padrange_map, o); +#endif - lt_pp_padsv_saved = PL_ppaddr[OP_PADSV]; - PL_ppaddr[OP_PADSV] = lt_pp_padsv; + XSH_UNLOCK(<_op_map_mutex); } -STATIC void lt_pp_padsv_restore(OP *o) { - if (!lt_pp_padsv_saved) - return; +/* --- Compatibility wrappers ---------------------------------------------- */ + +#if XSH_HAS_PERL(5, 10, 0) || defined(PL_parser) +# ifndef PL_in_my_stash +# define PL_in_my_stash PL_parser->in_my_stash +# endif +#else +# ifndef PL_in_my_stash +# define PL_in_my_stash PL_Iin_my_stash +# endif +#endif + +#ifndef HvNAME_get +# define HvNAME_get(H) HvNAME(H) +#endif - if (o->op_ppaddr == lt_pp_padsv) - o->op_ppaddr = lt_pp_padsv_saved; +#ifndef HvNAMELEN_get +# define HvNAMELEN_get(H) strlen(HvNAME_get(H)) +#endif + +#ifndef SvREFCNT_inc_simple_void_NN +# define SvREFCNT_inc_simple_void_NN(S) ((void) SvREFCNT_inc(S)) +#endif + +/* --- PP functions -------------------------------------------------------- */ - PL_ppaddr[OP_PADSV] = lt_pp_padsv_saved; - lt_pp_padsv_saved = 0; +/* ... pp_padsv ............................................................ */ + +static OP *lt_pp_padsv(pTHX) { + lt_op_padxv_info oi; + + if (lt_padxv_map_fetch(PL_op, &oi)) { + dTARGET; + lt_op_padxv_info_call(&oi, TARG); + return oi.old_pp(aTHX); + } + + return PL_op->op_ppaddr(aTHX); } -/* ... Our ck_pad{any,sv} .................................................. */ +/* ... pp_padrange (on perl 5.17.6 and above) .............................. */ -/* Sadly, the PADSV OPs we are interested in don't trigger the padsv check - * function, but are instead manually mutated from a PADANY. This is why we set - * PL_ppaddr[OP_PADSV] in the padany check function so that PADSV OPs will have - * their pp_ppaddr set to our pp_padsv. PL_ppaddr[OP_PADSV] is then reset at the - * beginning of every ck_pad{any,sv}. Some unwanted OPs can still call our - * pp_padsv, but much less than if we would have set PL_ppaddr[OP_PADSV] - * globally. */ +#if XSH_HAS_PERL(5, 17, 6) -STATIC SV *lt_default_meth = NULL; +static OP *lt_pp_padrange(pTHX) { + lt_op_padrange_info roi; -STATIC OP *(*lt_old_ck_padany)(pTHX_ OP *) = 0; + if (lt_padrange_map_fetch(PL_op, &roi)) { + PADOFFSET i, base, count; + const OP *p; -STATIC OP *lt_ck_padany(pTHX_ OP *o) { - HV *stash; - SV *hint; + base = PL_op->op_targ; + count = PL_op->op_private & OPpPADRANGE_COUNTMASK; - lt_pp_padsv_restore(o); + for (i = 0, p = roi.padxv_start; i < count && p; ++i, p = p->op_next) { + lt_op_padxv_info oi; + while (p->op_type == OP_NULL) + p = p->op_next; + if (p->op_type == OP_PADSV && lt_padxv_map_fetch(p, &oi)) + lt_op_padxv_info_call(&oi, PAD_SV(base + i)); + } + + return roi.old_pp(aTHX); + } + + return PL_op->op_ppaddr(aTHX); +} + +#endif + +/* --- Check functions ----------------------------------------------------- */ + +/* ... ck_pad{any,sv} ...................................................... */ + +/* Sadly, the padsv OPs we are interested in don't trigger the padsv check + * function, but are instead manually mutated from a padany. So we store + * the op entry in the op map in the padany check function, and we set their + * op_ppaddr member in our peephole optimizer replacement below. */ + +static OP *(*lt_old_ck_padany)(pTHX_ OP *) = 0; - o = CALL_FPTR(lt_old_ck_padany)(aTHX_ o); +static OP *lt_ck_padany(pTHX_ OP *o) { + HV *stash; + SV *code; + + o = lt_old_ck_padany(aTHX_ o); stash = PL_in_my_stash; - if (stash && (hint = lt_hint())) { + if (stash && (code = lt_hint())) { + dXSH_CXT; SV *orig_pkg = newSVpvn(HvNAME_get(stash), HvNAMELEN_get(stash)); - SV *orig_meth = lt_default_meth; + SV *orig_meth = XSH_CXT.default_meth; /* Guarded by lt_hint() */ SV *type_pkg = NULL; SV *type_meth = NULL; - SV *code = INT2PTR(SV *, SvUVX(hint)); + int items; - SvREADONLY_on(orig_pkg); + dSP; - if (code) { - int items; - dSP; + SvREADONLY_on(orig_pkg); - ENTER; - SAVETMPS; + ENTER; + SAVETMPS; - PUSHMARK(SP); - EXTEND(SP, 2); - PUSHs(orig_pkg); - PUSHs(orig_meth); - PUTBACK; + PUSHMARK(SP); + EXTEND(SP, 2); + PUSHs(orig_pkg); + PUSHs(orig_meth); + PUTBACK; - items = call_sv(code, G_ARRAY); + items = call_sv(code, G_ARRAY); - SPAGAIN; - if (items > 2) - croak(__PACKAGE__ " mangler should return zero, one or two scalars, but got %d", items); - if (items == 0) { - SvREFCNT_dec(orig_pkg); - goto skip; - } else { - SV *rsv; - if (items > 1) { - rsv = POPs; - if (SvOK(rsv)) { - type_meth = newSVsv(rsv); - SvREADONLY_on(type_meth); - } - } + SPAGAIN; + if (items > 2) + croak(XSH_PACKAGE " mangler should return zero, one or two scalars, but got %d", items); + if (items == 0) { + SvREFCNT_dec(orig_pkg); + FREETMPS; + LEAVE; + goto skip; + } else { + SV *rsv; + if (items > 1) { rsv = POPs; if (SvOK(rsv)) { - type_pkg = newSVsv(rsv); - SvREADONLY_on(type_pkg); + type_meth = newSVsv(rsv); + SvREADONLY_on(type_meth); } } - PUTBACK; - - FREETMPS; - LEAVE; + rsv = POPs; + if (SvOK(rsv)) { + type_pkg = newSVsv(rsv); + SvREADONLY_on(type_pkg); + } } + PUTBACK; + + FREETMPS; + LEAVE; if (!type_pkg) { type_pkg = orig_pkg; - SvREFCNT_inc(orig_pkg); + SvREFCNT_inc_simple_void_NN(orig_pkg); } if (!type_meth) { type_meth = orig_meth; - SvREFCNT_inc(orig_meth); + SvREFCNT_inc_simple_void_NN(orig_meth); } - lt_pp_padsv_save(); - - lt_map_store(o, orig_pkg, type_pkg, type_meth, lt_pp_padsv_saved); + lt_padxv_map_store(o, orig_pkg, type_pkg, type_meth, o->op_ppaddr); + } else { +skip: + lt_map_delete(o); } -skip: return o; } -STATIC OP *(*lt_old_ck_padsv)(pTHX_ OP *) = 0; +static OP *(*lt_old_ck_padsv)(pTHX_ OP *) = 0; -STATIC OP *lt_ck_padsv(pTHX_ OP *o) { - lt_pp_padsv_restore(o); +static OP *lt_ck_padsv(pTHX_ OP *o) { + lt_map_delete(o); - return CALL_FPTR(lt_old_ck_padsv)(aTHX_ o); + return lt_old_ck_padsv(aTHX_ o); } -STATIC U32 lt_initialized = 0; +/* --- Our peephole optimizer ---------------------------------------------- */ -/* --- XS ------------------------------------------------------------------ */ +#if XSH_HAS_PERL(5, 17, 6) -MODULE = Lexical::Types PACKAGE = Lexical::Types +static int lt_maybe_padrange_setup(pTHX_ OP *o, const OP *start) { +#define lt_maybe_padrange_setup(O, S) lt_maybe_padrange_setup(aTHX_ (O), (S)) + PADOFFSET i, count; + const OP *p; -PROTOTYPES: DISABLE + count = o->op_private & OPpPADRANGE_COUNTMASK; + + for (i = 0, p = start; i < count && p; ++i, p = p->op_next) { + if (p->op_type == OP_PADSV) { + /* In a padrange sequence, either all lexicals are typed, or none are. + * Thus we can stop at the first padsv op. However, note that these + * lexicals can need to call different methods in different packages. */ + XSH_LOCK(<_op_map_mutex); + if (ptable_fetch(lt_op_padxv_map, p)) { + XSH_UNLOCK(<_op_map_mutex); + lt_padrange_map_store(o, start, o->op_ppaddr); + o->op_ppaddr = lt_pp_padrange; + } else { + XSH_UNLOCK(<_op_map_mutex); + } + return 1; + } + } + + return 0; +} + +#endif + +static void xsh_peep_rec(pTHX_ OP *o, ptable *seen) { + for (; o; o = o->op_next) { + if (xsh_peep_seen(o, seen)) + break; + + switch (o->op_type) { + case OP_PADSV: + if (o->op_ppaddr != lt_pp_padsv && o->op_private & OPpLVAL_INTRO) { + lt_op_padxv_info *oi; + XSH_LOCK(<_op_map_mutex); + oi = ptable_fetch(lt_op_padxv_map, o); + if (oi) { + oi->old_pp = o->op_ppaddr; + o->op_ppaddr = lt_pp_padsv; + } + XSH_UNLOCK(<_op_map_mutex); + } + break; +#if XSH_HAS_PERL(5, 17, 6) + case OP_PADRANGE: + /* We deal with special padrange ops later, in the aassign op they belong + * to. */ + if (o->op_ppaddr != lt_pp_padrange && o->op_private & OPpLVAL_INTRO + && !(o->op_flags & OPf_SPECIAL)) { + /* A padrange op is guaranteed to have previously been a pushmark. + * Moreover, for non-special padrange ops (i.e. that aren't for + * my (...) = @_), the first original padxv is its sibling or nephew. + */ + OP *kid = OpSIBLING(o); + if (kid->op_type == OP_NULL && kid->op_flags & OPf_KIDS) { + kid = kUNOP->op_first; + if (kid->op_type == OP_NULL) + kid = OpSIBLING(kid); + } + lt_maybe_padrange_setup(o, kid); + } + break; + case OP_AASSIGN: { + OP *op; + if (cBINOPo->op_first && cBINOPo->op_first->op_flags & OPf_KIDS + && (op = cUNOPx(cBINOPo->op_first)->op_first) + && op->op_type == OP_PADRANGE + && op->op_ppaddr != lt_pp_padrange + && op->op_private & OPpLVAL_INTRO + && op->op_flags & OPf_SPECIAL) { + const OP *start = cUNOPx(cBINOPo->op_last)->op_first; + if (start->op_type == OP_PUSHMARK) + start = OpSIBLING(start); + lt_maybe_padrange_setup(op, start); + } + break; + } +#endif + default: + xsh_peep_maybe_recurse(o, seen); + break; + } + } +} + +/* --- Module setup/teardown ----------------------------------------------- */ + +static void xsh_user_global_setup(pTHX) { + lt_op_padxv_map = ptable_new(32); +#if XSH_HAS_PERL(5, 17, 6) + lt_op_padrange_map = ptable_new(32); +#endif -BOOT: -{ - if (!lt_initialized++) { - lt_op_map = ptable_new(); #ifdef USE_ITHREADS - MUTEX_INIT(<_op_map_mutex); + MUTEX_INIT(<_op_map_mutex); #endif - lt_default_meth = newSVpvn("TYPEDSCALAR", 11); - SvREADONLY_on(lt_default_meth); + xsh_ck_replace(OP_PADANY, lt_ck_padany, <_old_ck_padany); + xsh_ck_replace(OP_PADSV, lt_ck_padsv, <_old_ck_padsv); - PERL_HASH(lt_hash, __PACKAGE__, __PACKAGE_LEN__); + return; +} - lt_old_ck_padany = PL_check[OP_PADANY]; - PL_check[OP_PADANY] = MEMBER_TO_FPTR(lt_ck_padany); - lt_old_ck_padsv = PL_check[OP_PADSV]; - PL_check[OP_PADSV] = MEMBER_TO_FPTR(lt_ck_padsv); - } +static void xsh_user_local_setup(pTHX_ xsh_user_cxt_t *cxt) { + HV *stash; + + stash = gv_stashpvn(XSH_PACKAGE, XSH_PACKAGE_LEN, 1); + newCONSTSUB(stash, "LT_THREADSAFE", newSVuv(XSH_THREADSAFE)); + newCONSTSUB(stash, "LT_FORKSAFE", newSVuv(XSH_FORKSAFE)); + + cxt->default_meth = newSVpvn("TYPEDSCALAR", 11); + SvREADONLY_on(cxt->default_meth); + + return; +} + +static void xsh_user_local_teardown(pTHX_ xsh_user_cxt_t *cxt) { + SvREFCNT_dec(cxt->default_meth); + cxt->default_meth = NULL; + + return; +} + +static void xsh_user_global_teardown(pTHX) { + xsh_ck_restore(OP_PADANY, <_old_ck_padany); + xsh_ck_restore(OP_PADSV, <_old_ck_padsv); + + ptable_map_free(lt_op_padxv_map); + lt_op_padxv_map = NULL; + +#if XSH_HAS_PERL(5, 17, 6) + ptable_map_free(lt_op_padrange_map); + lt_op_padrange_map = NULL; +#endif + +#ifdef USE_ITHREADS + MUTEX_DESTROY(<_op_map_mutex); +#endif + + return; } -SV *_tag(SV *ref) -PREINIT: - SV *ret; +/* --- XS ------------------------------------------------------------------ */ + +MODULE = Lexical::Types PACKAGE = Lexical::Types + +PROTOTYPES: ENABLE + +BOOT: +{ + xsh_setup(); +} + +#if XSH_THREADSAFE + +void +CLONE(...) +PROTOTYPE: DISABLE +PPCODE: + xsh_clone(); + XSRETURN(0); + +#endif + +SV * +_tag(SV *code) +PROTOTYPE: $ CODE: - if (SvOK(ref) && SvROK(ref)) { - SV *sv = SvRV(ref); - SvREFCNT_inc(sv); - ret = newSVuv(PTR2UV(sv)); - } else { - ret = newSVuv(0); - } - RETVAL = ret; + if (!SvOK(code)) + code = NULL; + else if (SvROK(code)) + code = SvRV(code); + RETVAL = xsh_hints_tag(code); OUTPUT: RETVAL