* 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_slabbed allocated via opslab
+ * op_static tell op_free() to skip PerlMemShared_free(), when
+ * !op_slabbed.
+ * op_savefree on savestack via SAVEFREEOP
+ * 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).
*/
+#include "op_reg_common.h"
#define OPCODE U16
#define BASEOP \
OP* op_next; \
OP* op_sibling; \
- OP* (CPERLscope(*op_ppaddr))(pTHX); \
+ OP* (*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_slabbed:1; \
+ PERL_BITFIELD16 op_savefree:1; \
+ PERL_BITFIELD16 op_static:1; \
PERL_BITFIELD16 op_spare:3; \
U8 op_flags; \
U8 op_private;
/* 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 $@ */
- /* On OP_ENTERITER, loop var is per-thread */
- /* On pushre, rx is used as part of split, e.g. split " " */
+ /* On OP_SPLIT, special split " " */
/* On regcomp, "use re 'eval'" was in scope */
/* On OP_READLINE, was <$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_(ENTER|LEAVE)WHEN, there's
+ no condition */
/* 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) */
+ /* On OP_MATCH, OP_SUBST & OP_TRANS, the
+ operand of a logical or conditional
+ that was optimised away, so it should
+ not be bound via =~ */
+ /* On OP_CONST, from a constant CV */
+ /* On OP_GLOB, two meanings:
+ - Before ck_glob, called as CORE::glob
+ - After ck_glob, use Perl glob function
+ */
/* old names; don't use in new code, but don't break them, either */
#define OPf_LIST OPf_WANT_LIST
: G_SCALAR) \
: dowantarray())
-/* NOTE: OP_NEXTSTATE and OP_DBSTATE (i.e. COPs) carry lower
- * bits of PL_hints in op_private */
+/* Lower bits of op_private often carry the number of arguments, as
+ * set by newBINOP, newUNOP and ck_fun */
+
+/* NOTE: OP_NEXTSTATE and OP_DBSTATE (i.e. COPs) carry NATIVE_HINTS
+ * in op_private */
/* Private for lvalues */
#define OPpLVAL_INTRO 128 /* Lvalue must be localized or lvalue sub */
+/* Private for OPs with TARGLEX */
+ /* (lower bits may carry MAXARG) */
+#define OPpTARGET_MY 16 /* Target is PADMY. */
+
/* Private for OP_LEAVE, OP_LEAVESUB, OP_LEAVESUBLV and OP_LEAVEWRITE */
#define OPpREFCOUNTED 64 /* op_targ carries a refcount */
#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} */
+/* Private for OP_MATCH and OP_SUBST{,CONT} */
#define OPpRUNTIME 64 /* Pattern coming in on the stack */
/* Private for OP_TRANS */
#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_HASTARG 4 /* Called from OP tree. */
+#define OPpENTERSUB_INARGS 1 /* Lval used as arg to a sub. */
+/* used by OPpDEREF (32|64) */
+/* used by HINT_STRICT_SUBS 2 */
+ /* Mask for OP_ENTERSUB flags, the absence of which must be propagated
+ in dynamic context */
+#define OPpENTERSUB_LVAL_MASK (OPpLVAL_INTRO|OPpENTERSUB_INARGS)
+
+ /* 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. */
+#define OPpMAY_RETURN_CONSTANT 1 /* If a constant sub, return the constant */
+
/* 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 */
+ /* OP_RV2[SAH]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 */
+ /* OP_RV2[AGH]V, OP_PAD[AH]V, OP_[AH]ELEM, OP_[AH]SLICE OP_AV2ARYLEN,
+ OP_R?KEYS, OP_SUBSTR, OP_POS, OP_VEC */
#define OPpMAYBE_LVSUB 8 /* We might be an lvalue to return */
+ /* OP_RV2HV and OP_PADHV */
+#define OPpTRUEBOOL 32 /* %hash in (%hash || $foo) in
+ void context */
+#define OPpMAYBE_TRUEBOOL 64 /* %hash in (%hash || $foo) where
+ cx is not known till run time */
+
+ /* OP_SUBSTR only */
+#define OPpSUBSTR_REPL_FIRST 16 /* 1st arg is replacement string */
+
/* OP_PADSV only */
#define OPpPAD_STATE 16 /* is a "state" pad */
/* for OP_RV2?V, lower bits carry hints (currently only HINT_STRICT_REFS) */
#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. */
+#define OPpALLOW_FAKE 16 /* OK to return fake glob */
/* Private for OP_ENTERITER and OP_ITER */
#define OPpITER_REVERSED 4 /* for (reverse ...) */
/* 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_STRICT 8 /* bareword 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. */
+#define OPpCONST_FOLDED 128 /* Result of constant folding */
/* Private for OP_FLIP/FLOP */
#define OPpFLIP_LINENUM 64 /* Range arg potentially a line num. */
/* Private for OP_FTXXX */
#define OPpFT_ACCESS 2 /* use filetest 'access' */
-#define OPpFT_STACKED 4 /* stacked filetest, as in "-f -x $f" */
+#define OPpFT_STACKED 4 /* stacked filetest, as "-f" in "-f -x $f" */
+#define OPpFT_STACKING 8 /* stacking filetest, as "-x" in "-f -x $f" */
+#define OPpFT_AFTER_t 16 /* previous op was -t */
/* 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 */
+#define OPpEVAL_UNICODE 4
+#define OPpEVAL_BYTES 8
+#define OPpEVAL_COPHH 16 /* Construct %^H from cop hints */
+/* Private for OP_CALLER, OP_WANTARRAY and OP_RUNCV */
+#define OPpOFFBYONE 128 /* Treat caller(1) as caller(2) */
+
+/* Private for OP_COREARGS */
+/* These must not conflict with OPpDONT_INIT_GV or OPpALLOW_FAKE.
+ See pp.c:S_rv2gv. */
+#define OPpCOREARGS_DEREF1 1 /* Arg 1 is a handle constructor */
+#define OPpCOREARGS_DEREF2 2 /* Arg 2 is a handle constructor */
+#define OPpCOREARGS_SCALARMOD 64 /* \$ rather than \[$@%*] */
+#define OPpCOREARGS_PUSHMARK 128 /* Call pp_pushmark */
+
+/* Private for OP_(LAST|REDO|NEXT|GOTO|DUMP) */
+#define OPpPV_IS_UTF8 128 /* label is in UTF8 */
+
struct op {
BASEOP
};
union {
OP * op_pmreplstart; /* Only used in OP_SUBST */
#ifdef USE_ITHREADS
- char * op_pmstashpv; /* Only used in OP_MATCH, with PMf_ONCE set */
+ struct {
+ char * op_pmstashpv; /* Only used in OP_MATCH, with PMf_ONCE set */
+ U32 op_pmstashflags; /* currently only SVf_UTF8 or 0 */
+ } op_pmstashthr;
#else
HV * op_pmstash;
#endif
} op_pmstashstartu;
+ OP * op_code_list; /* list of (?{}) code blocks */
};
#ifdef USE_ITHREADS
#define PM_SETRE(o,r) ((o)->op_pmregexp = (r))
#endif
+/* Leave some space, so future bit allocations can go either in the shared or
+ * unshared area without affecting binary compatibility */
+#define PMf_BASE_SHIFT (_RXf_PMf_SHIFT_NEXT+6)
-#define PMf_RETAINT 0x00000040 /* taint $1 etc. if target tainted */
+/* 'use re "taint"' in scope: taint $1 etc. if target tainted */
+#define PMf_RETAINT (1<<(PMf_BASE_SHIFT+0))
/* 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_ONCE 0x00000080
-#define PMf_UNUSED 0x00000100 /* free for use */
-#define PMf_MAYBE_CONST 0x00000200 /* replacement contains variables */
+#define PMf_ONCE (1<<(PMf_BASE_SHIFT+1))
-/* PMf_ONCE has matched successfully. Not used under threading. */
-#define PMf_USED 0x00000400
+/* PMf_ONCE has matched successfully. Not used under threading. */
+#define PMf_USED (1<<(PMf_BASE_SHIFT+3))
-#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 */
+/* subst replacement is constant */
+#define PMf_CONST (1<<(PMf_BASE_SHIFT+4))
+
+/* keep 1st runtime pattern forever */
+#define PMf_KEEP (1<<(PMf_BASE_SHIFT+5))
+
+#define PMf_GLOBAL (1<<(PMf_BASE_SHIFT+6)) /* pattern had a g modifier */
+
+/* don't reset pos() if //g fails */
+#define PMf_CONTINUE (1<<(PMf_BASE_SHIFT+7))
+
+/* evaluating replacement as expr */
+#define PMf_EVAL (1<<(PMf_BASE_SHIFT+8))
/* Return substituted string instead of modifying it. */
-#define PMf_NONDESTRUCT 0x00010000
+#define PMf_NONDESTRUCT (1<<(PMf_BASE_SHIFT+9))
-/* 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 */
+/* the pattern has a CV attached (currently only under qr/...(?{}).../) */
+#define PMf_HAS_CV (1<<(PMf_BASE_SHIFT+10))
+
+/* op_code_list is private; don't free it etc. It may well point to
+ * code within another sub, with different pad etc */
+#define PMf_CODELIST_PRIVATE (1<<(PMf_BASE_SHIFT+11))
-/* 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)
+/* the PMOP is a QR (we should be able to detect that from the op type,
+ * but the regex compilation API passes just the pm flags, not the op
+ * itself */
+#define PMf_IS_QR (1<<(PMf_BASE_SHIFT+12))
+#define PMf_USE_RE_EVAL (1<<(PMf_BASE_SHIFT+13)) /* use re'eval' in scope */
+
+#if PMf_BASE_SHIFT+13 > 31
+# error Too many PMf_ bits used. See above and regnodes.h for any spare in middle
+#endif
#ifdef USE_ITHREADS
# define PmopSTASHPV(o) \
- (((o)->op_pmflags & PMf_ONCE) ? (o)->op_pmstashstartu.op_pmstashpv : NULL)
+ (((o)->op_pmflags & PMf_ONCE) ? (o)->op_pmstashstartu.op_pmstashthr.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)); \
+ ((o)->op_pmstashstartu.op_pmstashthr.op_pmstashpv = savesharedpv(pv)); \
})
# else
# define PmopSTASHPV_set(o,pv) \
- ((o)->op_pmstashstartu.op_pmstashpv = savesharedpv(pv))
+ ((o)->op_pmstashstartu.op_pmstashthr.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_flags(o) ((o)->op_pmstashstartu.op_pmstashthr.op_pmstashflags)
+# define PmopSTASH_flags_set(o,flags) ((o)->op_pmstashstartu.op_pmstashthr.op_pmstashflags = flags)
+# define PmopSTASH(o) (PmopSTASHPV(o) \
+ ? gv_stashpv((o)->op_pmstashstartu.op_pmstashthr.op_pmstashpv, \
+ GV_ADD | PmopSTASH_flags(o)) : NULL)
+# define PmopSTASH_set(o,hv) (PmopSTASHPV_set(o, (hv) ? HvNAME_get(hv) : NULL), \
+ PmopSTASH_flags_set(o, \
+ ((hv) && HvNAME_HEK(hv) && \
+ HvNAMEUTF8(hv)) \
+ ? SVf_UTF8 \
+ : 0))
# define PmopSTASH_free(o) PerlMemShared_free(PmopSTASHPV(o))
#else
# define Nullop ((OP*)NULL)
#endif
-/* Lowest byte-and-a-bit of PL_opargs */
+/* Lowest byte 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_TARGLEX 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 OCSHIFT 8
#define OA_CLASS_MASK (15 << OCSHIFT)
#define OA_FILESTATOP (12 << OCSHIFT)
#define OA_LOOPEXOP (13 << OCSHIFT)
-#define OASHIFT 13
+#define OASHIFT 12
/* Remaining nybbles of PL_opargs */
#define OA_SCALAR 1
#define ref(o, type) doref(o, type, TRUE)
#endif
+/*
+=head1 Optree Manipulation Functions
+
+=for apidoc Am|OP*|LINKLIST|OP *o
+Given the root of an optree, link the tree in execution order using the
+C<op_next> pointers and return the first op executed. If this has
+already been done, it will not be redone, and C<< o->op_next >> will be
+returned. If C<< o->op_next >> is not already set, I<o> should be at
+least an C<UNOP>.
+
+=cut
+*/
+
+#define LINKLIST(o) ((o)->op_next ? (o)->op_next : op_linklist((OP*)o))
+
/* 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)
+ cv_ckproto_len_flags((cv), (gv), (p), (p) ? strlen(p) : 0, 0)
#endif
#ifdef PERL_CORE
#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)
+
+/*
+ * The per-CV op slabs consist of a header (the opslab struct) and a bunch
+ * of space for allocating op slots, each of which consists of two pointers
+ * followed by an op. The first pointer points to the next op slot. The
+ * second points to the slab. At the end of the slab is a null pointer,
+ * so that slot->opslot_next - slot can be used to determine the size
+ * of the op.
+ *
+ * Each CV can have multiple slabs; opslab_next points to the next slab, to
+ * form a chain. All bookkeeping is done on the first slab, which is where
+ * all the op slots point.
+ *
+ * Freed ops are marked as freed and attached to the freed chain
+ * via op_next pointers.
+ *
+ * When there is more than one slab, the second slab in the slab chain is
+ * assumed to be the one with free space available. It is used when allo-
+ * cating an op if there are no freed ops available or big enough.
+ */
+
+#ifdef PERL_CORE
+struct opslot {
+ /* keep opslot_next first */
+ OPSLOT * opslot_next; /* next slot */
+ OPSLAB * opslot_slab; /* owner */
+ OP opslot_op; /* the op itself */
+};
+
+struct opslab {
+ OPSLOT * opslab_first; /* first op in this slab */
+ OPSLAB * opslab_next; /* next slab */
+ OP * opslab_freed; /* chain of freed ops */
+ size_t opslab_refcnt; /* number of ops */
+# ifdef PERL_DEBUG_READONLY_OPS
+ U16 opslab_size; /* size of slab in pointers */
+ bool opslab_readonly;
+# endif
+ OPSLOT opslab_slots; /* slots begin here */
+};
+
+# define OPSLOT_HEADER STRUCT_OFFSET(OPSLOT, opslot_op)
+# define OPSLOT_HEADER_P (OPSLOT_HEADER/sizeof(I32 *))
+# define OpSLOT(o) (assert_(o->op_slabbed) \
+ (OPSLOT *)(((char *)o)-OPSLOT_HEADER))
+# define OpSLAB(o) OpSLOT(o)->opslot_slab
+# define OpslabREFCNT_dec(slab) \
+ (((slab)->opslab_refcnt == 1) \
+ ? opslab_free_nopad(slab) \
+ : (void)--(slab)->opslab_refcnt)
+ /* Variant that does not null out the pads */
+# define OpslabREFCNT_dec_padok(slab) \
+ (((slab)->opslab_refcnt == 1) \
+ ? opslab_free(slab) \
+ : (void)--(slab)->opslab_refcnt)
#endif
struct block_hooks {
/*
=head1 Compile-time scope hooks
-=for apidoc m|U32|BhkFLAGS|BHK *hk
+=for apidoc mx|U32|BhkFLAGS|BHK *hk
Return the BHK's flags.
-=for apidoc m|void *|BhkENTRY|BHK *hk|which
+=for apidoc mx|void *|BhkENTRY|BHK *hk|which
Return an entry from the BHK structure. I<which> 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
+=for apidoc Amx|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<which> is a preprocessing token indicating which entry to set.
The type of I<ptr> depends on the entry.
-=for apidoc Am|void|BhkDISABLE|BHK *hk|which
+=for apidoc Amx|void|BhkDISABLE|BHK *hk|which
Temporarily disable an entry in this BHK structure, by clearing the
appropriate flag. I<which> is a preprocessor token indicating which
entry to disable.
-=for apidoc Am|void|BhkENABLE|BHK *hk|which
+=for apidoc Amx|void|BhkENABLE|BHK *hk|which
Re-enable an entry in this BHK structure, by setting the appropriate
flag. I<which> is a preprocessor token indicating which entry to enable.
This will assert (under -DDEBUGGING) if the entry doesn't contain a valid
pointer.
-=for apidoc m|void|CALL_BLOCK_HOOKS|which|arg
+=for apidoc mx|void|CALL_BLOCK_HOOKS|which|arg
Call all the registered block hooks for type I<which>. I<which> is a
preprocessing token; the type of I<arg> depends on I<which>.
#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 BHKf_bhk_start 0x01
+#define BHKf_bhk_pre_end 0x02
+#define BHKf_bhk_post_end 0x04
+#define BHKf_bhk_eval 0x08
#define BhkENTRY(hk, which) \
- ((BhkFLAGS(hk) & BHKf_ ## which) ? ((hk)->bhk_ ## which) : NULL)
+ ((BhkFLAGS(hk) & BHKf_ ## which) ? ((hk)->which) : NULL)
#define BhkENABLE(hk, which) \
STMT_START { \
#define BhkENTRY_set(hk, which, ptr) \
STMT_START { \
- (hk)->bhk_ ## which = ptr; \
+ (hk)->which = ptr; \
BhkENABLE(hk, which); \
} STMT_END
hk = INT2PTR(BHK *, SvIVX(sv)); \
\
if (BhkENTRY(hk, which)) \
- CALL_FPTR(BhkENTRY(hk, which))(aTHX_ arg); \
+ BhkENTRY(hk, which)(aTHX_ arg); \
} \
} \
} STMT_END
+/* flags for rv2cv_op_cv */
+
+#define RV2CVOPCV_MARK_EARLY 0x00000001
+#define RV2CVOPCV_RETURN_NAME_GV 0x00000002
+
+#define op_lvalue(op,t) Perl_op_lvalue_flags(aTHX_ op,t,0)
+
+/* flags for op_lvalue_flags */
+
+#define OP_LVALUE_NO_CROAK 1
+
+/*
+=head1 Custom Operators
+
+=for apidoc Am|U32|XopFLAGS|XOP *xop
+Return the XOP's flags.
+
+=for apidoc Am||XopENTRY|XOP *xop|which
+Return a member of the XOP structure. I<which> is a cpp token indicating
+which entry to return. If the member is not set this will return a
+default value. The return type depends on I<which>.
+
+=for apidoc Am|void|XopENTRY_set|XOP *xop|which|value
+Set a member of the XOP structure. I<which> is a cpp token indicating
+which entry to set. See L<perlguts/"Custom Operators"> for details about
+the available members and how they are used.
+
+=for apidoc Am|void|XopDISABLE|XOP *xop|which
+Temporarily disable a member of the XOP, by clearing the appropriate flag.
+
+=for apidoc Am|void|XopENABLE|XOP *xop|which
+Reenable a member of the XOP which has been disabled.
+
+=cut
+*/
+
+struct custom_op {
+ U32 xop_flags;
+ const char *xop_name;
+ const char *xop_desc;
+ U32 xop_class;
+ void (*xop_peep)(pTHX_ OP *o, OP *oldop);
+};
+
+#define XopFLAGS(xop) ((xop)->xop_flags)
+
+#define XOPf_xop_name 0x01
+#define XOPf_xop_desc 0x02
+#define XOPf_xop_class 0x04
+#define XOPf_xop_peep 0x08
+
+#define XOPd_xop_name PL_op_name[OP_CUSTOM]
+#define XOPd_xop_desc PL_op_desc[OP_CUSTOM]
+#define XOPd_xop_class OA_BASEOP
+#define XOPd_xop_peep ((Perl_cpeep_t)0)
+
+#define XopENTRY_set(xop, which, to) \
+ STMT_START { \
+ (xop)->which = (to); \
+ (xop)->xop_flags |= XOPf_ ## which; \
+ } STMT_END
+
+#define XopENTRY(xop, which) \
+ ((XopFLAGS(xop) & XOPf_ ## which) ? (xop)->which : XOPd_ ## which)
+
+#define XopDISABLE(xop, which) ((xop)->xop_flags &= ~XOPf_ ## which)
+#define XopENABLE(xop, which) \
+ STMT_START { \
+ (xop)->xop_flags |= XOPf_ ## which; \
+ assert(XopENTRY(xop, which)); \
+ } STMT_END
+
+/*
+=head1 Optree Manipulation Functions
+
+=for apidoc Am|const char *|OP_NAME|OP *o
+Return the name of the provided OP. For core ops this looks up the name
+from the op_type; for custom ops from the op_ppaddr.
+
+=for apidoc Am|const char *|OP_DESC|OP *o
+Return a short description of the provided OP.
+
+=for apidoc Am|U32|OP_CLASS|OP *o
+Return the class of the provided OP: that is, which of the *OP
+structures it uses. For core ops this currently gets the information out
+of PL_opargs, which does not always accurately reflect the type used.
+For custom ops the type is returned from the registration, and it is up
+to the registree to ensure it is accurate. The value returned will be
+one of the OA_* constants from op.h.
+
+=cut
+*/
+
+#define OP_NAME(o) ((o)->op_type == OP_CUSTOM \
+ ? XopENTRY(Perl_custom_op_xop(aTHX_ o), xop_name) \
+ : PL_op_name[(o)->op_type])
+#define OP_DESC(o) ((o)->op_type == OP_CUSTOM \
+ ? XopENTRY(Perl_custom_op_xop(aTHX_ o), xop_desc) \
+ : PL_op_desc[(o)->op_type])
+#define OP_CLASS(o) ((o)->op_type == OP_CUSTOM \
+ ? XopENTRY(Perl_custom_op_xop(aTHX_ o), xop_class) \
+ : (PL_opargs[(o)->op_type] & OA_CLASS_MASK))
+
+#define newSUB(f, o, p, b) Perl_newATTRSUB(aTHX_ (f), (o), (p), NULL, (b))
+
#ifdef PERL_MAD
# define MAD_NULL 1
# define MAD_PV 2
*/
/*
+=head1 Hook manipulation
+*/
+
+#ifdef USE_ITHREADS
+# define OP_CHECK_MUTEX_INIT MUTEX_INIT(&PL_check_mutex)
+# define OP_CHECK_MUTEX_LOCK MUTEX_LOCK(&PL_check_mutex)
+# define OP_CHECK_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_check_mutex)
+# define OP_CHECK_MUTEX_TERM MUTEX_DESTROY(&PL_check_mutex)
+#else
+# define OP_CHECK_MUTEX_INIT NOOP
+# define OP_CHECK_MUTEX_LOCK NOOP
+# define OP_CHECK_MUTEX_UNLOCK NOOP
+# define OP_CHECK_MUTEX_TERM NOOP
+#endif
+
+/*
* Local variables:
* c-indentation-style: bsd
* c-basic-offset: 4
- * indent-tabs-mode: t
+ * indent-tabs-mode: nil
* End:
*
- * ex: set ts=8 sts=4 sw=4 noet:
+ * ex: set ts=8 sts=4 sw=4 et:
*/
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