* !op_slabbed.
* op_savefree on savestack via SAVEFREEOP
* op_folded Result/remainder of a constant fold operation.
- * op_lastsib this op is is the last sibling
+ * op_moresib this op is is not the last sibling
* op_spare One spare bit
* op_flags Flags common to all operations. See OPf_* below.
* op_private Flags peculiar to a particular operation (BUT,
typedef PERL_BITFIELD16 Optype;
+/* this field now either points to the next sibling or to the parent,
+ * depending on op_moresib. So rename it from op_sibling to op_sibparent.
+ */
+#ifdef PERL_OP_PARENT
+# define _OP_SIBPARENT_FIELDNAME op_sibparent
+#else
+# define _OP_SIBPARENT_FIELDNAME op_sibling
+#endif
+
#ifdef BASEOP_DEFINITION
#define BASEOP BASEOP_DEFINITION
#else
#define BASEOP \
OP* op_next; \
- OP* op_sibling; \
+ OP* _OP_SIBPARENT_FIELDNAME;\
OP* (*op_ppaddr)(pTHX); \
PADOFFSET op_targ; \
PERL_BITFIELD16 op_type:9; \
PERL_BITFIELD16 op_savefree:1; \
PERL_BITFIELD16 op_static:1; \
PERL_BITFIELD16 op_folded:1; \
- PERL_BITFIELD16 op_lastsib:1; \
+ PERL_BITFIELD16 op_moresib:1; \
PERL_BITFIELD16 op_spare:1; \
U8 op_flags; \
U8 op_private;
#endif
-/* If op_type:9 is changed to :10, also change PUSHEVAL in cop.h.
+/* If op_type:9 is changed to :10, also change cx_pusheval()
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.*/
/* 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 OP_LEAVE, don't restore curpm, e.g.
+ * /(...)/ while ...>; */
/* 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_CHDIR, handle (or bare parens) */
/* On OP_NULL, saw a "do". */
/* On OP_EXISTS, treat av as av, not avhv. */
/* On OP_(ENTER|LEAVE)EVAL, don't clear $@ */
/* On OP_SMARTMATCH, an implicit smartmatch */
/* On OP_ANONHASH and OP_ANONLIST, create a
reference to the new anon hash or array */
- /* 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_HELEM, OP_MULTIDEREF 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
*/
/* On OP_PADRANGE, push @_ */
/* On OP_DUMP, has no label */
- /* On OP_UNSTACK, in a foreach loop */
+ /* On OP_UNSTACK, in a C-style for loop */
+/* There is no room in op_flags for this one, so it has its own bit-
+ field member (op_folded) instead. The flag is only used to tell
+ op_convert_list to set op_folded. */
+#define OPf_FOLDED 1<<16
/* 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 \
+#if !defined(PERL_CORE) && !defined(PERL_EXT)
+# define GIMME \
(PL_op->op_flags & OPf_WANT \
? ((PL_op->op_flags & OPf_WANT) == OPf_WANT_LIST \
? G_ARRAY \
: G_SCALAR) \
: dowantarray())
+#endif
/* NOTE: OPp* flags are now auto-generated and defined in opcode.h,
#define OPpENTERSUB_LVAL_MASK (OPpLVAL_INTRO|OPpENTERSUB_INARGS)
+/* things that can be elements of op_aux */
+typedef union {
+ PADOFFSET pad_offset;
+ SV *sv;
+ IV iv;
+ UV uv;
+} UNOP_AUX_item;
+
+#ifdef USE_ITHREADS
+# define UNOP_AUX_item_sv(item) PAD_SVl((item)->pad_offset);
+#else
+# define UNOP_AUX_item_sv(item) ((item)->sv);
+#endif
+
+
+
struct op {
BASEOP
OP * op_first;
};
+struct unop_aux {
+ BASEOP
+ OP *op_first;
+ UNOP_AUX_item *op_aux;
+};
+
struct binop {
BASEOP
OP * op_first;
SV* op_meth_sv; /* static method name */
} op_u;
#ifdef USE_ITHREADS
- PADOFFSET op_class_targ; /* pad index for class name if threaded */
+ PADOFFSET op_rclass_targ; /* pad index for redirect class */
#else
- SV* op_class_sv; /* static class name */
+ SV* op_rclass_sv; /* static redirect class $o->A::meth() */
#endif
};
* allocate off the low end until you get to PMf_BASE_SHIFT+0. If that isn't
* enough, move PMf_BASE_SHIFT down (if possible) and add the new bit at the
* other end instead; this preserves binary compatibility. */
-#define PMf_BASE_SHIFT (_RXf_PMf_SHIFT_NEXT+4)
+#define PMf_BASE_SHIFT (_RXf_PMf_SHIFT_NEXT+2)
/* 'use re "taint"' in scope: taint $1 etc. if target tainted */
#define PMf_RETAINT (1U<<(PMf_BASE_SHIFT+5))
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 cMETHOPx(o) ((METHOP*)o)
+#define cUNOPx(o) ((UNOP*)(o))
+#define cUNOP_AUXx(o) ((UNOP_AUX*)(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 cMETHOPx(o) ((METHOP*)(o))
#define cUNOP cUNOPx(PL_op)
+#define cUNOP_AUX cUNOP_AUXx(PL_op)
#define cBINOP cBINOPx(PL_op)
#define cLISTOP cLISTOPx(PL_op)
#define cLOGOP cLOGOPx(PL_op)
#define cLOOP cLOOPx(PL_op)
#define cUNOPo cUNOPx(o)
+#define cUNOP_AUXo cUNOP_AUXx(o)
#define cBINOPo cBINOPx(o)
#define cLISTOPo cLISTOPx(o)
#define cLOGOPo cLOGOPx(o)
#define cLOOPo cLOOPx(o)
#define kUNOP cUNOPx(kid)
+#define kUNOP_AUX cUNOP_AUXx(kid)
#define kBINOP cBINOPx(kid)
#define kLISTOP cLISTOPx(kid)
#define kLOGOP cLOGOPx(kid)
? 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))
-# define cMETHOPx_class(v) (cMETHOPx(v)->op_class_targ ? \
- PAD_SVl(cMETHOPx(v)->op_class_targ) : NULL)
+# define cMETHOPx_rclass(v) PAD_SVl(cMETHOPx(v)->op_rclass_targ)
#else
# define cGVOPx_gv(o) ((GV*)cSVOPx(o)->op_sv)
# ifndef PERL_CORE
# endif
# define cSVOPx_sv(v) (cSVOPx(v)->op_sv)
# define cSVOPx_svp(v) (&cSVOPx(v)->op_sv)
-# define cMETHOPx_class(v) (cMETHOPx(v)->op_class_sv)
+# define cMETHOPx_rclass(v) (cMETHOPx(v)->op_rclass_sv)
#endif
# define cMETHOPx_meth(v) cSVOPx_sv(v)
#define OA_FILESTATOP (12 << OCSHIFT)
#define OA_LOOPEXOP (13 << OCSHIFT)
#define OA_METHOP (14 << OCSHIFT)
+#define OA_UNOP_AUX (15 << OCSHIFT)
/* Each remaining nybble of PL_opargs (i.e. bits 12..15, 16..19 etc)
* encode the type for each arg */
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
+returned. If C<< o->op_next >> is not already set, C<o> should be at
least an C<UNOP>.
=cut
Return the BHK's flags.
=for apidoc mx|void *|BhkENTRY|BHK *hk|which
-Return an entry from the BHK structure. I<which> is a preprocessor token
+Return an entry from the BHK structure. C<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
+this will return C<NULL>. The type of the return value depends on which
entry you ask for.
=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.
+valid. C<which> is a preprocessing token indicating which entry to set.
+The type of
C<ptr> depends on the entry.
=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
+appropriate flag. C<which> is a preprocessor token indicating which
entry to disable.
=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.
+flag. C<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 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>.
+Call all the registered block hooks for type C<which>. C<which> is a
+preprocessing token; the type of C<arg> depends on C<which>.
=cut
*/
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
+Return a member of the XOP structure. C<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>. This macro evaluates its arguments more than
+on C<which>. This macro evaluates its arguments more than
once. If you are using C<Perl_custom_op_xop> to retreive a
C<XOP *> from a C<OP *>, use the more efficient L</XopENTRYCUSTOM> instead.
=for apidoc Am||XopENTRYCUSTOM|const OP *o|which
Exactly like C<XopENTRY(XopENTRY(Perl_custom_op_xop(aTHX_ o), which)> but more
-efficient. The I<which> parameter is identical to L</XopENTRY>.
+efficient. The C<which> parameter is identical to L</XopENTRY>.
=for apidoc Am|void|XopENTRY_set|XOP *xop|which|value
-Set a member of the XOP structure. I<which> is a cpp token
+Set a member of the XOP structure. C<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. This macro evaluates its argument
=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.
+of C<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.
+one of the C<OA_>* constants from F<op.h>.
-=for apidoc Am|bool|OP_TYPE_IS|OP *o, Optype type
-Returns true if the given OP is not a NULL pointer
+=for apidoc Am|bool|OP_TYPE_IS|OP *o|Optype type
+Returns true if the given OP is not a C<NULL> pointer
and if it is of the given type.
The negation of this macro, C<OP_TYPE_ISNT> is also available
as well as C<OP_TYPE_IS_NN> and C<OP_TYPE_ISNT_NN> which elide
the NULL pointer check.
-=for apidoc Am|bool|OP_TYPE_IS_OR_WAS|OP *o, Optype type
+=for apidoc Am|bool|OP_TYPE_IS_OR_WAS|OP *o|Optype type
Returns true if the given OP is not a NULL pointer and
if it is of the given type or used to be before being
replaced by an OP of type OP_NULL.
The negation of this macro, C<OP_TYPE_ISNT_AND_WASNT>
is also available as well as C<OP_TYPE_IS_OR_WAS_NN>
and C<OP_TYPE_ISNT_AND_WASNT_NN> which elide
-the NULL pointer check.
+the C<NULL> pointer check.
+
+=for apidoc Am|bool|OpHAS_SIBLING|OP *o
+Returns true if C<o> has a sibling
-=for apidoc Am|bool|OP_HAS_SIBLING|OP *o
-Returns true if o has a sibling
+=for apidoc Am|OP*|OpSIBLING|OP *o
+Returns the sibling of C<o>, or C<NULL> if there is no sibling
-=for apidoc Am|bool|OP_SIBLING|OP *o
-Returns the sibling of o, or NULL if there is no sibling
+=for apidoc Am|void|OpMORESIB_set|OP *o|OP *sib
+Sets the sibling of C<o> to the non-zero value C<sib>. See also C<L</OpLASTSIB_set>>
+and C<L</OpMAYBESIB_set>>. For a higher-level interface, see
+C<L</op_sibling_splice>>.
-=for apidoc Am|bool|OP_SIBLING_set|OP *o|OP *sib
-Sets the sibling of o to sib
+=for apidoc Am|void|OpLASTSIB_set|OP *o|OP *parent
+Marks C<o> as having no further siblings. On C<PERL_OP_PARENT> builds, marks
+o as having the specified parent. See also C<L</OpMORESIB_set>> and
+C<OpMAYBESIB_set>. For a higher-level interface, see
+C<L</op_sibling_splice>>.
+
+=for apidoc Am|void|OpMAYBESIB_set|OP *o|OP *sib|OP *parent
+Conditionally does C<OpMORESIB_set> or C<OpLASTSIB_set> depending on whether
+C<sib> is non-null. For a higher-level interface, see C<L</op_sibling_splice>>.
=cut
*/
#define OP_TYPE_ISNT_AND_WASNT(o, type) \
( (o) && OP_TYPE_ISNT_AND_WASNT_NN(o, type) )
+
#ifdef PERL_OP_PARENT
-# define OP_HAS_SIBLING(o) (!cBOOL((o)->op_lastsib))
-# define OP_SIBLING(o) (0 + (o)->op_lastsib ? NULL : (o)->op_sibling)
-# define OP_SIBLING_set(o, sib) ((o)->op_sibling = (sib))
+# define OpHAS_SIBLING(o) (cBOOL((o)->op_moresib))
+# define OpSIBLING(o) (0 + (o)->op_moresib ? (o)->op_sibparent : NULL)
+# define OpMORESIB_set(o, sib) ((o)->op_moresib = 1, (o)->op_sibparent = (sib))
+# define OpLASTSIB_set(o, parent) \
+ ((o)->op_moresib = 0, (o)->op_sibparent = (parent))
+# define OpMAYBESIB_set(o, sib, parent) \
+ ((o)->op_sibparent = ((o)->op_moresib = cBOOL(sib)) ? (sib) : (parent))
#else
-# define OP_HAS_SIBLING(o) (cBOOL((o)->op_sibling))
-# define OP_SIBLING(o) (0 + (o)->op_sibling)
-# define OP_SIBLING_set(o, sib) ((o)->op_sibling = (sib))
+# define OpHAS_SIBLING(o) (cBOOL((o)->op_sibling))
+# define OpSIBLING(o) (0 + (o)->op_sibling)
+# define OpMORESIB_set(o, sib) ((o)->op_moresib = 1, (o)->op_sibling = (sib))
+# define OpLASTSIB_set(o, parent) \
+ ((o)->op_moresib = 0, (o)->op_sibling = NULL)
+# define OpMAYBESIB_set(o, sib, parent) \
+ ((o)->op_moresib = cBOOL(sib), (o)->op_sibling = (sib))
+#endif
+
+#if !defined(PERL_CORE) && !defined(PERL_EXT)
+/* for backwards compatibility only */
+# define OP_SIBLING(o) OpSIBLING(o)
#endif
#define newATTRSUB(f, o, p, a, b) Perl_newATTRSUB_x(aTHX_ f, o, p, a, b, FALSE)
# define OP_CHECK_MUTEX_TERM NOOP
#endif
+
+/* Stuff for OP_MULTDEREF/pp_multideref. */
+
+/* actions */
+
+/* Load another word of actions/flag bits. Must be 0 */
+#define MDEREF_reload 0
+
+#define MDEREF_AV_pop_rv2av_aelem 1
+#define MDEREF_AV_gvsv_vivify_rv2av_aelem 2
+#define MDEREF_AV_padsv_vivify_rv2av_aelem 3
+#define MDEREF_AV_vivify_rv2av_aelem 4
+#define MDEREF_AV_padav_aelem 5
+#define MDEREF_AV_gvav_aelem 6
+
+#define MDEREF_HV_pop_rv2hv_helem 8
+#define MDEREF_HV_gvsv_vivify_rv2hv_helem 9
+#define MDEREF_HV_padsv_vivify_rv2hv_helem 10
+#define MDEREF_HV_vivify_rv2hv_helem 11
+#define MDEREF_HV_padhv_helem 12
+#define MDEREF_HV_gvhv_helem 13
+
+#define MDEREF_ACTION_MASK 0xf
+
+/* key / index type */
+
+#define MDEREF_INDEX_none 0x00 /* run external ops to generate index */
+#define MDEREF_INDEX_const 0x10 /* index is const PV/UV */
+#define MDEREF_INDEX_padsv 0x20 /* index is lexical var */
+#define MDEREF_INDEX_gvsv 0x30 /* index is GV */
+
+#define MDEREF_INDEX_MASK 0x30
+
+/* bit flags */
+
+#define MDEREF_FLAG_last 0x40 /* the last [ah]elem; PL_op flags apply */
+
+#define MDEREF_MASK 0x7F
+#define MDEREF_SHIFT 7
+
+#if defined(PERL_IN_DOOP_C) || defined(PERL_IN_PP_C)
+static const char * const deprecated_above_ff_msg
+ = "Use of strings with code points over 0xFF as arguments to "
+ "%s operator is deprecated";
+#endif
+
+
/*
- * Local variables:
- * c-indentation-style: bsd
- * c-basic-offset: 4
- * indent-tabs-mode: nil
- * End:
- *
* ex: set ts=8 sts=4 sw=4 et:
*/
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