/* op.h * * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others * * You may distribute under the terms of either the GNU General Public * License or the Artistic License, as specified in the README file. * */ /* * The fields of BASEOP are: * op_next Pointer to next ppcode to execute after this one. * (Top level pre-grafted op points to first op, * but this is replaced when op is grafted in, when * this op will point to the real next op, and the new * parent takes over role of remembering starting op.) * op_ppaddr Pointer to current ppcode's function. * op_type The type of the operation. * op_opt Whether or not the op has been optimised by the * peephole optimiser. * * See the comments in S_clear_yystack() for more * details on the following three flags: * * op_latefree tell op_free() to clear this op (and free any kids) * but not yet deallocate the struct. This means that * the op may be safely op_free()d multiple times * op_latefreed an op_latefree op has been op_free()d * op_attached this op (sub)tree has been attached to a CV * * op_spare three spare bits! * op_flags Flags common to all operations. See OPf_* below. * op_private Flags peculiar to a particular operation (BUT, * by default, set to the number of children until * the operation is privatized by a check routine, * which may or may not check number of children). */ #define OPCODE U16 #ifdef PERL_MAD # define MADPROP_IN_BASEOP MADPROP* op_madprop; #else # define MADPROP_IN_BASEOP #endif typedef PERL_BITFIELD16 Optype; #ifdef BASEOP_DEFINITION #define BASEOP BASEOP_DEFINITION #else #define BASEOP \ OP* op_next; \ OP* op_sibling; \ OP* (CPERLscope(*op_ppaddr))(pTHX); \ MADPROP_IN_BASEOP \ PADOFFSET op_targ; \ PERL_BITFIELD16 op_type:9; \ PERL_BITFIELD16 op_opt:1; \ PERL_BITFIELD16 op_latefree:1; \ PERL_BITFIELD16 op_latefreed:1; \ PERL_BITFIELD16 op_attached:1; \ PERL_BITFIELD16 op_spare:3; \ U8 op_flags; \ U8 op_private; #endif /* If op_type:9 is changed to :10, also change PUSHEVAL in cop.h. Also, if the type of op_type is ever changed (e.g. to PERL_BITFIELD32) then all the other bit-fields before/after it should change their types too to let VC pack them into the same 4 byte integer.*/ #define OP_GIMME(op,dfl) \ (((op)->op_flags & OPf_WANT) == OPf_WANT_VOID ? G_VOID : \ ((op)->op_flags & OPf_WANT) == OPf_WANT_SCALAR ? G_SCALAR : \ ((op)->op_flags & OPf_WANT) == OPf_WANT_LIST ? G_ARRAY : \ dfl) #define OP_GIMME_REVERSE(flags) ((flags) & G_WANT) /* =head1 "Gimme" Values =for apidoc Amn|U32|GIMME_V The XSUB-writer's equivalent to Perl's C. Returns C, C or C for void, scalar or list context, respectively. See L for a usage example. =for apidoc Amn|U32|GIMME A backward-compatible version of C which can only return C or C; in a void context, it returns C. Deprecated. Use C instead. =cut */ #define GIMME_V OP_GIMME(PL_op, block_gimme()) /* Public flags */ #define OPf_WANT 3 /* Mask for "want" bits: */ #define OPf_WANT_VOID 1 /* Want nothing */ #define OPf_WANT_SCALAR 2 /* Want single value */ #define OPf_WANT_LIST 3 /* Want list of any length */ #define OPf_KIDS 4 /* There is a firstborn child. */ #define OPf_PARENS 8 /* This operator was parenthesized. */ /* (Or block needs explicit scope entry.) */ #define OPf_REF 16 /* Certified reference. */ /* (Return container, not containee). */ #define OPf_MOD 32 /* Will modify (lvalue). */ #define OPf_STACKED 64 /* Some arg is arriving on the stack. */ #define OPf_SPECIAL 128 /* Do something weird for this op: */ /* On local LVAL, don't init local value. */ /* On OP_SORT, subroutine is inlined. */ /* On OP_NOT, inversion was implicit. */ /* On OP_LEAVE, don't restore curpm. */ /* On truncate, we truncate filehandle */ /* On control verbs, we saw no label */ /* On flipflop, we saw ... instead of .. */ /* On UNOPs, saw bare parens, e.g. eof(). */ /* On OP_ENTERSUB || OP_NULL, saw a "do". */ /* On OP_EXISTS, treat av as av, not avhv. */ /* On OP_(ENTER|LEAVE)EVAL, don't clear $@ */ /* On OP_ENTERITER, loop var is per-thread */ /* On pushre, rx is used as part of split, e.g. split " " */ /* On regcomp, "use re 'eval'" was in scope */ /* On OP_READLINE, was <$filehandle> */ /* On RV2[ACGHS]V, don't create GV--in defined()*/ /* On OP_DBSTATE, indicates breakpoint * (runtime property) */ /* On OP_AELEMFAST, indiciates pad var */ /* On OP_REQUIRE, was seen as CORE::require */ /* On OP_ENTERWHEN, there's no condition */ /* On OP_BREAK, an implicit break */ /* On OP_SMARTMATCH, an implicit smartmatch */ /* On OP_ANONHASH and OP_ANONLIST, create a reference to the new anon hash or array */ /* On OP_ENTER, store caller context */ /* On OP_HELEM and OP_HSLICE, localization will be followed by assignment, so do not wipe the target if it is special (e.g. a glob or a magic SV) */ /* old names; don't use in new code, but don't break them, either */ #define OPf_LIST OPf_WANT_LIST #define OPf_KNOW OPf_WANT #define GIMME \ (PL_op->op_flags & OPf_WANT \ ? ((PL_op->op_flags & OPf_WANT) == OPf_WANT_LIST \ ? G_ARRAY \ : G_SCALAR) \ : dowantarray()) /* NOTE: OP_NEXTSTATE and OP_DBSTATE (i.e. COPs) carry lower * bits of PL_hints in op_private */ /* Private for lvalues */ #define OPpLVAL_INTRO 128 /* Lvalue must be localized or lvalue sub */ /* Private for OP_LEAVE, OP_LEAVESUB, OP_LEAVESUBLV and OP_LEAVEWRITE */ #define OPpREFCOUNTED 64 /* op_targ carries a refcount */ /* Private for OP_AASSIGN */ #define OPpASSIGN_COMMON 64 /* Left & right have syms in common. */ /* Private for OP_SASSIGN */ #define OPpASSIGN_BACKWARDS 64 /* Left & right switched. */ #define OPpASSIGN_CV_TO_GV 128 /* Possible optimisation for constants. */ /* Private for OP_MATCH and OP_SUBST{,CONST} */ #define OPpRUNTIME 64 /* Pattern coming in on the stack */ /* Private for OP_TRANS */ #define OPpTRANS_FROM_UTF 1 #define OPpTRANS_TO_UTF 2 #define OPpTRANS_IDENTICAL 4 /* right side is same as left */ #define OPpTRANS_SQUASH 8 /* 16 is used for OPpTARGET_MY */ #define OPpTRANS_COMPLEMENT 32 #define OPpTRANS_GROWS 64 #define OPpTRANS_DELETE 128 #define OPpTRANS_ALL (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF|OPpTRANS_IDENTICAL|OPpTRANS_SQUASH|OPpTRANS_COMPLEMENT|OPpTRANS_GROWS|OPpTRANS_DELETE) /* Private for OP_REPEAT */ #define OPpREPEAT_DOLIST 64 /* List replication. */ /* Private for OP_RV2GV, OP_RV2SV, OP_AELEM, OP_HELEM, OP_PADSV */ #define OPpDEREF (32|64) /* autovivify: Want ref to something: */ #define OPpDEREF_AV 32 /* Want ref to AV. */ #define OPpDEREF_HV 64 /* Want ref to HV. */ #define OPpDEREF_SV (32|64) /* Want ref to SV. */ /* Private for OP_RV2SV, OP_RV2AV, OP_RV2AV */ #define OPpDEREFed 4 /* prev op was OPpDEREF */ /* OP_ENTERSUB only */ #define OPpENTERSUB_DB 16 /* Debug subroutine. */ #define OPpENTERSUB_HASTARG 32 /* Called from OP tree. */ #define OPpENTERSUB_NOMOD 64 /* Immune to mod() for :attrlist. */ /* OP_ENTERSUB and OP_RV2CV only */ #define OPpENTERSUB_AMPER 8 /* Used & form to call. */ #define OPpENTERSUB_NOPAREN 128 /* bare sub call (without parens) */ #define OPpENTERSUB_INARGS 4 /* Lval used as arg to a sub. */ /* OP_GV only */ #define OPpEARLY_CV 32 /* foo() called before sub foo was parsed */ /* OP_?ELEM only */ #define OPpLVAL_DEFER 16 /* Defer creation of array/hash elem */ /* OP_RV2?V, OP_GVSV, OP_ENTERITER only */ #define OPpOUR_INTRO 16 /* Variable was in an our() */ /* OP_RV2[AGH]V, OP_PAD[AH]V, OP_[AH]ELEM */ #define OPpMAYBE_LVSUB 8 /* We might be an lvalue to return */ /* OP_PADSV only */ #define OPpPAD_STATE 16 /* is a "state" pad */ /* for OP_RV2?V, lower bits carry hints (currently only HINT_STRICT_REFS) */ /* OP_RV2GV only */ #define OPpDONT_INIT_GV 4 /* Call gv_fetchpv with GV_NOINIT */ /* (Therefore will return whatever is currently in the symbol table, not guaranteed to be a PVGV) */ /* OP_RV2CV only */ #define OPpMAY_RETURN_CONSTANT 1 /* If a constant sub, return the constant */ /* Private for OPs with TARGLEX */ /* (lower bits may carry MAXARG) */ #define OPpTARGET_MY 16 /* Target is PADMY. */ /* Private for OP_ENTERITER and OP_ITER */ #define OPpITER_REVERSED 4 /* for (reverse ...) */ #define OPpITER_DEF 8 /* for $_ or for my $_ */ /* Private for OP_CONST */ #define OPpCONST_NOVER 2 /* no 6; */ #define OPpCONST_SHORTCIRCUIT 4 /* eg the constant 5 in (5 || foo) */ #define OPpCONST_STRICT 8 /* bearword subject to strict 'subs' */ #define OPpCONST_ENTERED 16 /* Has been entered as symbol. */ #define OPpCONST_ARYBASE 32 /* Was a $[ translated to constant. */ #define OPpCONST_BARE 64 /* Was a bare word (filehandle?). */ #define OPpCONST_WARNING 128 /* Was a $^W translated to constant. */ /* Private for OP_FLIP/FLOP */ #define OPpFLIP_LINENUM 64 /* Range arg potentially a line num. */ /* Private for OP_LIST */ #define OPpLIST_GUESSED 64 /* Guessed that pushmark was needed. */ /* Private for OP_DELETE */ #define OPpSLICE 64 /* Operating on a list of keys */ /* Also OPpLVAL_INTRO (128) */ /* Private for OP_EXISTS */ #define OPpEXISTS_SUB 64 /* Checking for &sub, not {} or []. */ /* Private for OP_SORT */ #define OPpSORT_NUMERIC 1 /* Optimized away { $a <=> $b } */ #define OPpSORT_INTEGER 2 /* Ditto while under "use integer" */ #define OPpSORT_REVERSE 4 /* Reversed sort */ #define OPpSORT_INPLACE 8 /* sort in-place; eg @a = sort @a */ #define OPpSORT_DESCEND 16 /* Descending sort */ #define OPpSORT_QSORT 32 /* Use quicksort (not mergesort) */ #define OPpSORT_STABLE 64 /* Use a stable algorithm */ /* Private for OP_REVERSE */ #define OPpREVERSE_INPLACE 8 /* reverse in-place (@a = reverse @a) */ /* Private for OP_OPEN and OP_BACKTICK */ #define OPpOPEN_IN_RAW 16 /* binmode(F,":raw") on input fh */ #define OPpOPEN_IN_CRLF 32 /* binmode(F,":crlf") on input fh */ #define OPpOPEN_OUT_RAW 64 /* binmode(F,":raw") on output fh */ #define OPpOPEN_OUT_CRLF 128 /* binmode(F,":crlf") on output fh */ /* Private for OP_EXIT, HUSH also for OP_DIE */ #define OPpHUSH_VMSISH 64 /* hush DCL exit msg vmsish mode*/ #define OPpEXIT_VMSISH 128 /* exit(0) vs. exit(1) vmsish mode*/ /* Private for OP_FTXXX */ #define OPpFT_ACCESS 2 /* use filetest 'access' */ #define OPpFT_STACKED 4 /* stacked filetest, as in "-f -x $f" */ /* Private for OP_(MAP|GREP)(WHILE|START) */ #define OPpGREP_LEX 2 /* iterate over lexical $_ */ /* Private for OP_ENTEREVAL */ #define OPpEVAL_HAS_HH 2 /* Does it have a copy of %^H */ struct op { BASEOP }; struct unop { BASEOP OP * op_first; }; struct binop { BASEOP OP * op_first; OP * op_last; }; struct logop { BASEOP OP * op_first; OP * op_other; }; struct listop { BASEOP OP * op_first; OP * op_last; }; struct pmop { BASEOP OP * op_first; OP * op_last; #ifdef USE_ITHREADS IV op_pmoffset; #else REGEXP * op_pmregexp; /* compiled expression */ #endif U32 op_pmflags; union { OP * op_pmreplroot; /* For OP_SUBST */ #ifdef USE_ITHREADS PADOFFSET op_pmtargetoff; /* For OP_PUSHRE */ #else GV * op_pmtargetgv; #endif } op_pmreplrootu; union { OP * op_pmreplstart; /* Only used in OP_SUBST */ #ifdef USE_ITHREADS char * op_pmstashpv; /* Only used in OP_MATCH, with PMf_ONCE set */ #else HV * op_pmstash; #endif } op_pmstashstartu; }; #ifdef USE_ITHREADS #define PM_GETRE(o) (SvTYPE(PL_regex_pad[(o)->op_pmoffset]) == SVt_REGEXP \ ? (REGEXP*)(PL_regex_pad[(o)->op_pmoffset]) : NULL) /* The assignment is just to enforce type safety (or at least get a warning). */ /* With first class regexps not via a reference one needs to assign &PL_sv_undef under ithreads. (This would probably work unthreaded, but NULL is cheaper. I guess we could allow NULL, but the check above would get more complex, and we'd have an AV with (SV*)NULL in it, which feels bad */ /* BEWARE - something that calls this macro passes (r) which has a side effect. */ #define PM_SETRE(o,r) STMT_START { \ REGEXP *const _pm_setre = (r); \ assert(_pm_setre); \ PL_regex_pad[(o)->op_pmoffset] = MUTABLE_SV(_pm_setre); \ } STMT_END #else #define PM_GETRE(o) ((o)->op_pmregexp) #define PM_SETRE(o,r) ((o)->op_pmregexp = (r)) #endif #define PMf_RETAINT 0x00000040 /* taint $1 etc. if target tainted */ #define PMf_ONCE 0x00000080 /* match successfully only once per reset, with related flag RXf_USED in re->extflags holding state. This is used only for ?? matches, and only on OP_MATCH and OP_QR */ #define PMf_UNUSED 0x00000100 /* free for use */ #define PMf_MAYBE_CONST 0x00000200 /* replacement contains variables */ #define PMf_USED 0x00000400 /* PMf_ONCE has matched successfully. Not used under threading. */ #define PMf_CONST 0x00000800 /* subst replacement is constant */ #define PMf_KEEP 0x00001000 /* keep 1st runtime pattern forever */ #define PMf_GLOBAL 0x00002000 /* pattern had a g modifier */ #define PMf_CONTINUE 0x00004000 /* don't reset pos() if //g fails */ #define PMf_EVAL 0x00008000 /* evaluating replacement as expr */ #define PMf_NONDESTRUCT 0x00010000 /* Return substituted string instead of modifying it. */ /* The following flags have exact equivalents in regcomp.h with the prefix RXf_ * which are stored in the regexp->extflags member. If you change them here, * you have to change them there, and vice versa. */ #define PMf_MULTILINE 0x00000001 /* assume multiple lines */ #define PMf_SINGLELINE 0x00000002 /* assume single line */ #define PMf_FOLD 0x00000004 /* case insensitivity */ #define PMf_EXTENDED 0x00000008 /* chuck embedded whitespace */ #define PMf_KEEPCOPY 0x00000010 /* copy the string when matching */ #define PMf_LOCALE 0x00000020 /* use locale for character types */ /* mask of bits that need to be transfered to re->extflags */ #define PMf_COMPILETIME (PMf_MULTILINE|PMf_SINGLELINE|PMf_LOCALE|PMf_FOLD|PMf_EXTENDED|PMf_KEEPCOPY) #ifdef USE_ITHREADS # define PmopSTASHPV(o) \ (((o)->op_pmflags & PMf_ONCE) ? (o)->op_pmstashstartu.op_pmstashpv : NULL) # if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) # define PmopSTASHPV_set(o,pv) ({ \ assert((o)->op_pmflags & PMf_ONCE); \ ((o)->op_pmstashstartu.op_pmstashpv = savesharedpv(pv)); \ }) # else # define PmopSTASHPV_set(o,pv) \ ((o)->op_pmstashstartu.op_pmstashpv = savesharedpv(pv)) # endif # define PmopSTASH(o) (PmopSTASHPV(o) \ ? gv_stashpv((o)->op_pmstashstartu.op_pmstashpv,GV_ADD) : NULL) # define PmopSTASH_set(o,hv) PmopSTASHPV_set(o, ((hv) ? HvNAME_get(hv) : NULL)) # define PmopSTASH_free(o) PerlMemShared_free(PmopSTASHPV(o)) #else # define PmopSTASH(o) \ (((o)->op_pmflags & PMf_ONCE) ? (o)->op_pmstashstartu.op_pmstash : NULL) # if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) # define PmopSTASH_set(o,hv) ({ \ assert((o)->op_pmflags & PMf_ONCE); \ ((o)->op_pmstashstartu.op_pmstash = (hv)); \ }) # else # define PmopSTASH_set(o,hv) ((o)->op_pmstashstartu.op_pmstash = (hv)) # endif # define PmopSTASHPV(o) (PmopSTASH(o) ? HvNAME_get(PmopSTASH(o)) : NULL) /* op_pmstashstartu.op_pmstash is not refcounted */ # define PmopSTASHPV_set(o,pv) PmopSTASH_set((o), gv_stashpv(pv,GV_ADD)) /* Note that if this becomes non-empty, then S_forget_pmop in op.c will need changing */ # define PmopSTASH_free(o) #endif struct svop { BASEOP SV * op_sv; }; struct padop { BASEOP PADOFFSET op_padix; }; struct pvop { BASEOP char * op_pv; }; struct loop { BASEOP OP * op_first; OP * op_last; OP * op_redoop; OP * op_nextop; OP * op_lastop; }; #define cUNOPx(o) ((UNOP*)o) #define cBINOPx(o) ((BINOP*)o) #define cLISTOPx(o) ((LISTOP*)o) #define cLOGOPx(o) ((LOGOP*)o) #define cPMOPx(o) ((PMOP*)o) #define cSVOPx(o) ((SVOP*)o) #define cPADOPx(o) ((PADOP*)o) #define cPVOPx(o) ((PVOP*)o) #define cCOPx(o) ((COP*)o) #define cLOOPx(o) ((LOOP*)o) #define cUNOP cUNOPx(PL_op) #define cBINOP cBINOPx(PL_op) #define cLISTOP cLISTOPx(PL_op) #define cLOGOP cLOGOPx(PL_op) #define cPMOP cPMOPx(PL_op) #define cSVOP cSVOPx(PL_op) #define cPADOP cPADOPx(PL_op) #define cPVOP cPVOPx(PL_op) #define cCOP cCOPx(PL_op) #define cLOOP cLOOPx(PL_op) #define cUNOPo cUNOPx(o) #define cBINOPo cBINOPx(o) #define cLISTOPo cLISTOPx(o) #define cLOGOPo cLOGOPx(o) #define cPMOPo cPMOPx(o) #define cSVOPo cSVOPx(o) #define cPADOPo cPADOPx(o) #define cPVOPo cPVOPx(o) #define cCOPo cCOPx(o) #define cLOOPo cLOOPx(o) #define kUNOP cUNOPx(kid) #define kBINOP cBINOPx(kid) #define kLISTOP cLISTOPx(kid) #define kLOGOP cLOGOPx(kid) #define kPMOP cPMOPx(kid) #define kSVOP cSVOPx(kid) #define kPADOP cPADOPx(kid) #define kPVOP cPVOPx(kid) #define kCOP cCOPx(kid) #define kLOOP cLOOPx(kid) #ifdef USE_ITHREADS # define cGVOPx_gv(o) ((GV*)PAD_SVl(cPADOPx(o)->op_padix)) # define IS_PADGV(v) (v && SvTYPE(v) == SVt_PVGV && isGV_with_GP(v) \ && GvIN_PAD(v)) # define IS_PADCONST(v) (v && SvREADONLY(v)) # define cSVOPx_sv(v) (cSVOPx(v)->op_sv \ ? cSVOPx(v)->op_sv : PAD_SVl((v)->op_targ)) # define cSVOPx_svp(v) (cSVOPx(v)->op_sv \ ? &cSVOPx(v)->op_sv : &PAD_SVl((v)->op_targ)) #else # define cGVOPx_gv(o) ((GV*)cSVOPx(o)->op_sv) # define IS_PADGV(v) FALSE # define IS_PADCONST(v) FALSE # define cSVOPx_sv(v) (cSVOPx(v)->op_sv) # define cSVOPx_svp(v) (&cSVOPx(v)->op_sv) #endif #define cGVOP_gv cGVOPx_gv(PL_op) #define cGVOPo_gv cGVOPx_gv(o) #define kGVOP_gv cGVOPx_gv(kid) #define cSVOP_sv cSVOPx_sv(PL_op) #define cSVOPo_sv cSVOPx_sv(o) #define kSVOP_sv cSVOPx_sv(kid) #ifndef PERL_CORE # define Nullop ((OP*)NULL) #endif /* Lowest byte-and-a-bit of PL_opargs */ #define OA_MARK 1 #define OA_FOLDCONST 2 #define OA_RETSCALAR 4 #define OA_TARGET 8 #define OA_RETINTEGER 16 #define OA_OTHERINT 32 #define OA_DANGEROUS 64 #define OA_DEFGV 128 #define OA_TARGLEX 256 /* The next 4 bits encode op class information */ #define OCSHIFT 9 #define OA_CLASS_MASK (15 << OCSHIFT) #define OA_BASEOP (0 << OCSHIFT) #define OA_UNOP (1 << OCSHIFT) #define OA_BINOP (2 << OCSHIFT) #define OA_LOGOP (3 << OCSHIFT) #define OA_LISTOP (4 << OCSHIFT) #define OA_PMOP (5 << OCSHIFT) #define OA_SVOP (6 << OCSHIFT) #define OA_PADOP (7 << OCSHIFT) #define OA_PVOP_OR_SVOP (8 << OCSHIFT) #define OA_LOOP (9 << OCSHIFT) #define OA_COP (10 << OCSHIFT) #define OA_BASEOP_OR_UNOP (11 << OCSHIFT) #define OA_FILESTATOP (12 << OCSHIFT) #define OA_LOOPEXOP (13 << OCSHIFT) #define OASHIFT 13 /* Remaining nybbles of PL_opargs */ #define OA_SCALAR 1 #define OA_LIST 2 #define OA_AVREF 3 #define OA_HVREF 4 #define OA_CVREF 5 #define OA_FILEREF 6 #define OA_SCALARREF 7 #define OA_OPTIONAL 8 /* Op_REFCNT is a reference count at the head of each op tree: needed * since the tree is shared between threads, and between cloned closure * copies in the same thread. OP_REFCNT_LOCK/UNLOCK is used when modifying * this count. * The same mutex is used to protect the refcounts of the reg_trie_data * and reg_ac_data structures, which are shared between duplicated * regexes. */ #ifdef USE_ITHREADS # define OP_REFCNT_INIT MUTEX_INIT(&PL_op_mutex) # ifdef PERL_CORE # define OP_REFCNT_LOCK MUTEX_LOCK(&PL_op_mutex) # define OP_REFCNT_UNLOCK MUTEX_UNLOCK(&PL_op_mutex) # else # define OP_REFCNT_LOCK op_refcnt_lock() # define OP_REFCNT_UNLOCK op_refcnt_unlock() # endif # define OP_REFCNT_TERM MUTEX_DESTROY(&PL_op_mutex) #else # define OP_REFCNT_INIT NOOP # define OP_REFCNT_LOCK NOOP # define OP_REFCNT_UNLOCK NOOP # define OP_REFCNT_TERM NOOP #endif #define OpREFCNT_set(o,n) ((o)->op_targ = (n)) #ifdef PERL_DEBUG_READONLY_OPS # define OpREFCNT_inc(o) Perl_op_refcnt_inc(aTHX_ o) # define OpREFCNT_dec(o) Perl_op_refcnt_dec(aTHX_ o) #else # define OpREFCNT_inc(o) ((o) ? (++(o)->op_targ, (o)) : NULL) # define OpREFCNT_dec(o) (--(o)->op_targ) #endif /* flags used by Perl_load_module() */ #define PERL_LOADMOD_DENY 0x1 /* no Module */ #define PERL_LOADMOD_NOIMPORT 0x2 /* use Module () */ #define PERL_LOADMOD_IMPORT_OPS 0x4 /* use Module (...) */ #if defined(PERL_IN_PERLY_C) || defined(PERL_IN_OP_C) #define ref(o, type) doref(o, type, TRUE) #endif /* no longer used anywhere in core */ #ifndef PERL_CORE #define cv_ckproto(cv, gv, p) \ cv_ckproto_len((cv), (gv), (p), (p) ? strlen(p) : 0) #endif #ifdef PERL_CORE # define my(o) my_attrs((o), NULL) #endif #ifdef USE_REENTRANT_API #include "reentr.h" #endif #if defined(PL_OP_SLAB_ALLOC) #define NewOp(m,var,c,type) \ (var = (type *) Perl_Slab_Alloc(aTHX_ c*sizeof(type))) #define NewOpSz(m,var,size) \ (var = (OP *) Perl_Slab_Alloc(aTHX_ size)) #define FreeOp(p) Perl_Slab_Free(aTHX_ p) #else #define NewOp(m, var, c, type) \ (var = (MEM_WRAP_CHECK_(c,type) \ (type*)PerlMemShared_calloc(c, sizeof(type)))) #define NewOpSz(m, var, size) \ (var = (OP*)PerlMemShared_calloc(1, size)) #define FreeOp(p) PerlMemShared_free(p) #endif struct block_hooks { U32 bhk_flags; void (*bhk_start) (pTHX_ int full); void (*bhk_pre_end) (pTHX_ OP **seq); void (*bhk_post_end) (pTHX_ OP **seq); void (*bhk_eval) (pTHX_ OP *const saveop); }; /* =head1 Compile-time scope hooks =for apidoc m|U32|BhkFLAGS|BHK *hk Return the BHK's flags. =for apidoc m|void *|BhkENTRY|BHK *hk|which Return an entry from the BHK structure. I is a preprocessor token indicating which entry to return. If the appropriate flag is not set this will return NULL. The type of the return value depends on which entry you ask for. =for apidoc Am|void|BhkENTRY_set|BHK *hk|which|void *ptr Set an entry in the BHK structure, and set the flags to indicate it is valid. I is a preprocessing token indicating which entry to set. The type of I depends on the entry. =for apidoc m|void|CALL_BLOCK_HOOKS|which|arg Call all the registered block hooks for type I. I is a preprocessing token; the type of I depends on I. =cut */ #define BhkFLAGS(hk) ((hk)->bhk_flags) #define BHKf_start 0x01 #define BHKf_pre_end 0x02 #define BHKf_post_end 0x04 #define BHKf_eval 0x08 #define BhkENTRY(hk, which) \ ((BhkFLAGS(hk) & BHKf_ ## which) ? ((hk)->bhk_ ## which) : NULL) #define BhkENTRY_set(hk, which, ptr) \ STMT_START { \ (hk)->bhk_ ## which = ptr; \ (hk)->bhk_flags |= BHKf_ ## which; \ } STMT_END #define CALL_BLOCK_HOOKS(which, arg) \ STMT_START { \ if (PL_blockhooks) { \ I32 i; \ for (i = av_len(PL_blockhooks); i >= 0; i--) { \ SV *sv = AvARRAY(PL_blockhooks)[i]; \ BHK *hk; \ \ assert(SvIOK(sv)); \ if (SvUOK(sv)) \ hk = INT2PTR(BHK *, SvUVX(sv)); \ else \ hk = INT2PTR(BHK *, SvIVX(sv)); \ \ if (BhkENTRY(hk, which)) \ CALL_FPTR(BhkENTRY(hk, which))(aTHX_ arg); \ } \ } \ } STMT_END #ifdef PERL_MAD # define MAD_NULL 1 # define MAD_PV 2 # define MAD_OP 3 # define MAD_SV 4 struct madprop { MADPROP* mad_next; void *mad_val; U32 mad_vlen; /* short mad_count; */ char mad_key; char mad_type; }; struct token { I32 tk_type; YYSTYPE tk_lval; MADPROP* tk_mad; }; #endif /* * Values that can be held by mad_key : * ^ unfilled head spot * , literal , * ; literal ; (blank if implicit ; at end of block) * : literal : from ?: or attr list * + unary + * ? literal ? from ?: * ( literal ( * ) literal ) * [ literal [ * ] literal ] * { literal { * } literal } * @ literal @ sigil * $ literal $ sigil * * literal * sigil * ! use is source filtered * & & or sub * # whitespace/comment following ; or } * # $# sigil * 1 1st ; from for(;;) * 1 retired protasis * 2 2nd ; from for(;;) * 2 retired apodosis * 3 C-style for list * a sub or var attributes * a non-method arrow operator * A method arrow operator * A use import args * b format block * B retired stub block * C constant conditional op * d declarator * D do block * e unreached "else" (see C) * e expression producing E * E tr/E/R/, /E/ * f folded constant op * F peg op for format * g op was forced to be a word * i if/unless modifier * I if/elsif/unless statement * k local declarator * K retired kid op * l last index of array ($#foo) * L label * m modifier on regex * n sub or format name * o current operator/declarator name * o else/continue * O generic optimized op * p peg to hold extra whitespace at statement level * P peg op for package declaration * q opening quote * = quoted material * Q closing quote * Q optimized qw// * r expression producing R * R tr/E/R/ s/E/R/ * s sub signature * S use import stub (no import) * S retired sort block * t unreached "then" (see C) * U use import op * v private sv of for loop * V use version * w while/until modifier * W while/for statement * x optimized qw * X random thing * _ whitespace/comments preceding anything else * ~ =~ operator */ /* * Local variables: * c-indentation-style: bsd * c-basic-offset: 4 * indent-tabs-mode: t * End: * * ex: set ts=8 sts=4 sw=4 noet: */