/* op.h
*
- * Copyright (c) 1991-1997, Larry Wall
+ * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ * 2000, 2001, 2002, 2003, 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.
* which may or may not check number of children).
*/
-typedef U32 PADOFFSET;
-#define NOT_IN_PAD ((PADOFFSET) -1)
-
#ifdef DEBUGGING_OPS
#define OPCODE opcode
#else
#define BASEOP \
OP* op_next; \
OP* op_sibling; \
- OP* (CPERLscope(*op_ppaddr))_((ARGSproto)); \
+ OP* (CPERLscope(*op_ppaddr))(pTHX); \
PADOFFSET op_targ; \
OPCODE op_type; \
U16 op_seq; \
((op)->op_flags & OPf_WANT) == OPf_WANT_LIST ? G_ARRAY : \
dfl)
-#define GIMME_V OP_GIMME(op, block_gimme())
+/*
+=head1 "Gimme" Values
+
+=for apidoc Amn|U32|GIMME_V
+The XSUB-writer's equivalent to Perl's C<wantarray>. Returns C<G_VOID>,
+C<G_SCALAR> or C<G_ARRAY> for void, scalar or list context,
+respectively.
+
+=for apidoc Amn|U32|GIMME
+A backward-compatible version of C<GIMME_V> which can only return
+C<G_SCALAR> or C<G_ARRAY>; in a void context, it returns C<G_SCALAR>.
+Deprecated. Use C<GIMME_V> instead.
+
+=cut
+*/
+
+#define GIMME_V OP_GIMME(PL_op, block_gimme())
/* Public flags */
/* 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 $@ */
/* On OP_ENTERITER, loop var is per-thread */
+ /* On pushre, re is /\s+/ imp. by split " " */
+ /* On regcomp, "use re 'eval'" was in scope */
+ /* On OP_READLINE, was <$filehandle> */
+ /* On RV2[SG]V, don't create GV--in defined()*/
+ /* On OP_DBSTATE, indicates breakpoint
+ * (runtime property) */
/* old names; don't use in new code, but don't break them, either */
-#define OPf_LIST 1
-#define OPf_KNOW 2
+#define OPf_LIST OPf_WANT_LIST
+#define OPf_KNOW OPf_WANT
+
#define GIMME \
- (op->op_flags & OPf_KNOW ? op->op_flags & OPf_LIST : dowantarray())
+ (PL_op->op_flags & OPf_WANT \
+ ? ((PL_op->op_flags & OPf_WANT) == OPf_WANT_LIST \
+ ? G_ARRAY \
+ : G_SCALAR) \
+ : dowantarray())
+
+/* NOTE: OP_NEXTSTATE, OP_DBSTATE, and OP_SETSTATE (i.e. COPs) carry lower
+ * bits of PL_hints in op_private */
/* Private for lvalues */
-#define OPpLVAL_INTRO 128 /* Lvalue must be localized */
+#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. */
#define OPpRUNTIME 64 /* Pattern coming in on the stack */
/* Private for OP_TRANS */
-#define OPpTRANS_COUNTONLY 8
-#define OPpTRANS_SQUASH 16
-#define OPpTRANS_DELETE 32
-#define OPpTRANS_COMPLEMENT 64
+#define OPpTRANS_FROM_UTF 1
+#define OPpTRANS_TO_UTF 2
+#define OPpTRANS_IDENTICAL 4 /* right side is same as left */
+#define OPpTRANS_SQUASH 8
+#define OPpTRANS_DELETE 16
+#define OPpTRANS_COMPLEMENT 32
+#define OPpTRANS_GROWS 64
/* Private for OP_REPEAT */
#define OPpREPEAT_DOLIST 64 /* List replication. */
-/* Private for OP_ENTERSUB, OP_RV2?V, OP_?ELEM */
+/* Private for OP_RV2?V, OP_?ELEM */
#define OPpDEREF (32|64) /* 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. */
/* 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_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 */
- /* for OP_RV2?V, lower bits carry hints */
+ /* OP_RV2?V, OP_GVSV, OP_ENTERITER only */
+#define OPpOUR_INTRO 16 /* Variable was in an our() */
+ /* OP_RV2[AH]V, OP_PAD[AH]V, OP_[AH]ELEM */
+#define OPpMAYBE_LVSUB 8 /* We might be an lvalue to return */
+ /* for OP_RV2?V, lower bits carry hints (currently only HINT_STRICT_REFS) */
+
+/* Private for OPs with TARGLEX */
+ /* (lower bits may carry MAXARG) */
+#define OPpTARGET_MY 16 /* Target is PADMY. */
/* Private for OP_CONST */
+#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_DELETE */
#define OPpSLICE 64 /* Operating on a list of keys */
-/* Private for OP_SORT, OP_PRTF, OP_SPRINTF, string cmp'n, and case changers */
-#define OPpLOCALE 64 /* Use locale */
+/* 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 /* Descending sort */
/* Private for OP_THREADSV */
#define OPpDONE_SVREF 64 /* Been through newSVREF once */
+/* 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 of OP_FTXXX */
+#define OPpFT_ACCESS 2 /* use filetest 'access' */
+#define OP_IS_FILETEST_ACCESS(op) \
+ (((op)->op_type) == OP_FTRREAD || \
+ ((op)->op_type) == OP_FTRWRITE || \
+ ((op)->op_type) == OP_FTREXEC || \
+ ((op)->op_type) == OP_FTEREAD || \
+ ((op)->op_type) == OP_FTEWRITE || \
+ ((op)->op_type) == OP_FTEEXEC)
+
struct op {
BASEOP
};
OP * op_other;
};
-struct condop {
- BASEOP
- OP * op_first;
- OP * op_true;
- OP * op_false;
-};
-
struct listop {
BASEOP
OP * op_first;
OP * op_last;
- U32 op_children;
};
struct pmop {
BASEOP
OP * op_first;
OP * op_last;
- U32 op_children;
OP * op_pmreplroot;
OP * op_pmreplstart;
PMOP * op_pmnext; /* list of all scanpats */
- REGEXP * op_pmregexp; /* compiled expression */
- U16 op_pmflags;
- U16 op_pmpermflags;
+#ifdef USE_ITHREADS
+ IV op_pmoffset;
+#else
+ REGEXP * op_pmregexp; /* compiled expression */
+#endif
+ U32 op_pmflags;
+ U32 op_pmpermflags;
U8 op_pmdynflags;
+#ifdef USE_ITHREADS
+ char * op_pmstashpv;
+#else
+ HV * op_pmstash;
+#endif
};
+#ifdef USE_ITHREADS
+#define PM_GETRE(o) (INT2PTR(REGEXP*,SvIVX(PL_regex_pad[(o)->op_pmoffset])))
+#define PM_SETRE(o,r) STMT_START { SV* sv = PL_regex_pad[(o)->op_pmoffset]; sv_setiv(sv, PTR2IV(r)); } STMT_END
+#define PM_GETRE_SAFE(o) (PL_regex_pad ? PM_GETRE(o) : (REGEXP*)0)
+#define PM_SETRE_SAFE(o,r) if (PL_regex_pad) PM_SETRE(o,r)
+#else
+#define PM_GETRE(o) ((o)->op_pmregexp)
+#define PM_SETRE(o,r) ((o)->op_pmregexp = (r))
+#define PM_GETRE_SAFE PM_GETRE
+#define PM_SETRE_SAFE PM_SETRE
+#endif
+
#define PMdf_USED 0x01 /* pm has been used once already */
#define PMdf_TAINTED 0x02 /* pm compiled from tainted pattern */
+#define PMdf_UTF8 0x04 /* pm compiled from utf8 data */
+#define PMdf_DYN_UTF8 0x08
+
+#define PMdf_CMP_UTF8 (PMdf_UTF8|PMdf_DYN_UTF8)
#define PMf_RETAINT 0x0001 /* taint $1 etc. if target tainted */
#define PMf_ONCE 0x0002 /* use pattern only once per reset */
-#define PMf_REVERSED 0x0004 /* Should be matched right->left */
+#define PMf_UNUSED 0x0004 /* free for use */
#define PMf_MAYBE_CONST 0x0008 /* replacement contains variables */
#define PMf_SKIPWHITE 0x0010 /* skip leading whitespace for split */
#define PMf_WHITE 0x0020 /* pattern is \s+ */
/* mask of bits stored in regexp->reganch */
#define PMf_COMPILETIME (PMf_MULTILINE|PMf_SINGLELINE|PMf_LOCALE|PMf_FOLD|PMf_EXTENDED)
+#ifdef USE_ITHREADS
+
+# define PmopSTASHPV(o) ((o)->op_pmstashpv)
+# define PmopSTASHPV_set(o,pv) (PmopSTASHPV(o) = savesharedpv(pv))
+# define PmopSTASH(o) (PmopSTASHPV(o) \
+ ? gv_stashpv(PmopSTASHPV(o),GV_ADD) : Nullhv)
+# define PmopSTASH_set(o,hv) PmopSTASHPV_set(o, ((hv) ? HvNAME(hv) : Nullch))
+# define PmopSTASH_free(o) PerlMemShared_free(PmopSTASHPV(o))
+
+#else
+# define PmopSTASH(o) ((o)->op_pmstash)
+# define PmopSTASH_set(o,hv) ((o)->op_pmstash = (hv))
+# define PmopSTASHPV(o) (PmopSTASH(o) ? HvNAME(PmopSTASH(o)) : Nullch)
+ /* op_pmstash is not refcounted */
+# define PmopSTASHPV_set(o,pv) PmopSTASH_set((o), gv_stashpv(pv,GV_ADD))
+# define PmopSTASH_free(o)
+#endif
+
struct svop {
BASEOP
SV * op_sv;
};
-struct gvop {
+struct padop {
BASEOP
- GV * op_gv;
+ PADOFFSET op_padix;
};
struct pvop {
BASEOP
OP * op_first;
OP * op_last;
- U32 op_children;
OP * op_redoop;
OP * op_nextop;
OP * op_lastop;
};
-#define cUNOP ((UNOP*)op)
-#define cBINOP ((BINOP*)op)
-#define cLISTOP ((LISTOP*)op)
-#define cLOGOP ((LOGOP*)op)
-#define cCONDOP ((CONDOP*)op)
-#define cPMOP ((PMOP*)op)
-#define cSVOP ((SVOP*)op)
-#define cGVOP ((GVOP*)op)
-#define cPVOP ((PVOP*)op)
-#define cCOP ((COP*)op)
-#define cLOOP ((LOOP*)op)
-
-#define cUNOPo ((UNOP*)o)
-#define cBINOPo ((BINOP*)o)
-#define cLISTOPo ((LISTOP*)o)
-#define cLOGOPo ((LOGOP*)o)
-#define cCONDOPo ((CONDOP*)o)
-#define cPMOPo ((PMOP*)o)
-#define cSVOPo ((SVOP*)o)
-#define cGVOPo ((GVOP*)o)
-#define cPVOPo ((PVOP*)o)
-#define cCVOPo ((CVOP*)o)
-#define cCOPo ((COP*)o)
-#define cLOOPo ((LOOP*)o)
-
-#define kUNOP ((UNOP*)kid)
-#define kBINOP ((BINOP*)kid)
-#define kLISTOP ((LISTOP*)kid)
-#define kLOGOP ((LOGOP*)kid)
-#define kCONDOP ((CONDOP*)kid)
-#define kPMOP ((PMOP*)kid)
-#define kSVOP ((SVOP*)kid)
-#define kGVOP ((GVOP*)kid)
-#define kPVOP ((PVOP*)kid)
-#define kCOP ((COP*)kid)
-#define kLOOP ((LOOP*)kid)
+#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 && 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)
#define Nullop Null(OP*)
-/* Lowest byte of opargs */
+/* Lowest byte-and-a-bit of PL_opargs */
#define OA_MARK 1
#define OA_FOLDCONST 2
#define OA_RETSCALAR 4
#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 OA_CLASS_MASK (15 << 8)
-
-#define OA_BASEOP (0 << 8)
-#define OA_UNOP (1 << 8)
-#define OA_BINOP (2 << 8)
-#define OA_LOGOP (3 << 8)
-#define OA_CONDOP (4 << 8)
-#define OA_LISTOP (5 << 8)
-#define OA_PMOP (6 << 8)
-#define OA_SVOP (7 << 8)
-#define OA_GVOP (8 << 8)
-#define OA_PVOP (9 << 8)
-#define OA_LOOP (10 << 8)
-#define OA_COP (11 << 8)
-#define OA_BASEOP_OR_UNOP (12 << 8)
-#define OA_FILESTATOP (13 << 8)
-#define OA_LOOPEXOP (14 << 8)
-
-#define OASHIFT 12
-
-/* Remaining nybbles of opargs */
+#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_SCALARREF 7
#define OA_OPTIONAL 8
+#ifdef USE_ITHREADS
+# define OP_REFCNT_INIT MUTEX_INIT(&PL_op_mutex)
+# define OP_REFCNT_LOCK MUTEX_LOCK(&PL_op_mutex)
+# define OP_REFCNT_UNLOCK MUTEX_UNLOCK(&PL_op_mutex)
+# 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))
+#define OpREFCNT_inc(o) ((o) ? (++(o)->op_targ, (o)) : Nullop)
+#define OpREFCNT_dec(o) (--(o)->op_targ)
+
+/* flags used by Perl_load_module() */
+#define PERL_LOADMOD_DENY 0x1
+#define PERL_LOADMOD_NOIMPORT 0x2
+#define PERL_LOADMOD_IMPORT_OPS 0x4
+
+#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_ m,c*sizeof(type)))
+#define NewOpSz(m,var,size) \
+ (var = (OP *) Perl_Slab_Alloc(aTHX_ m,size))
+#define FreeOp(p) Perl_Slab_Free(aTHX_ p)
+#else
+#define NewOp(m, var, c, type) Newz(m, var, c, type)
+#define NewOpSz(m, var, size) \
+ (var = (OP*)safemalloc(size), memzero(var, size))
+#define FreeOp(p) Safefree(p)
+#endif