* op_type The type of the operation.
* op_opt Whether or not the op has been optimised by the
* peephole optimiser.
- * op_static Whether or not the op is statically defined.
- * This flag is used by the B::C compiler backend
- * and indicates that the op should not be freed.
*
* 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 two spare bits!
+ * 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
* which may or may not check number of children).
*/
-#ifdef DEBUGGING_OPS
-#define OPCODE opcode
-#else
#define OPCODE U16
-#endif
#ifdef PERL_MAD
# define MADPROP_IN_BASEOP MADPROP* op_madprop;
PADOFFSET op_targ; \
unsigned op_type:9; \
unsigned op_opt:1; \
- unsigned op_static:1; \
unsigned op_latefree:1; \
unsigned op_latefreed:1; \
unsigned op_attached:1; \
- unsigned op_spare:2; \
+ unsigned op_spare:3; \
U8 op_flags; \
U8 op_private;
#endif
/* On OP_EXISTS, treat av as av, not avhv. */
/* On OP_(ENTER|LEAVE)EVAL, don't clear $@ */
/* On OP_ENTERITER, loop var is per-thread */
- /* On pushre, re is /\s+/ imp. by split " " */
+ /* On pushre, rx is used as part of split, e.g. split " " */
/* On regcomp, "use re 'eval'" was in scope */
/* On OP_READLINE, was <$filehandle> */
/* On RV2[ACGHS]V, don't create GV--in
#define OPpASSIGN_BACKWARDS 64 /* Left & right switched. */
#define OPpASSIGN_CV_TO_GV 128 /* Possible optimisation for constants. */
-/* Private for OP_[AS]ASSIGN */
-#define OPpASSIGN_STATE 32 /* Assign to a "state" variable */
-
/* Private for OP_MATCH and OP_SUBST{,CONST} */
#define OPpRUNTIME 64 /* Pattern coming in on the stack */
BASEOP
OP * op_first;
OP * op_last;
- OP * op_pmreplroot; /* (type is really union {OP*,GV*,PADOFFSET}) */
- OP * op_pmreplstart;
#ifdef USE_ITHREADS
IV op_pmoffset;
#else
REGEXP * op_pmregexp; /* compiled expression */
#endif
- U32 op_pmflags;
+ U32 op_pmflags;
+ union {
+ OP * op_pmreplroot; /* For OP_SUBST */
#ifdef USE_ITHREADS
- char * op_pmstashpv;
+ PADOFFSET op_pmtargetoff; /* For OP_PUSHRE */
#else
- HV * op_pmstash;
+ 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 PMf_RETAINT 0x0001 /* taint $1 etc. if target tainted */
#define PMf_ONCE 0x0002 /* match successfully only once per
reset, with related flag RXf_USED
- in re->extflags holding state */
+ in re->extflags holding state.
+ This is used only for ?? matches,
+ and only on OP_MATCH and OP_QR */
#define PMf_UNUSED 0x0004 /* free for use */
#define PMf_MAYBE_CONST 0x0008 /* replacement contains variables */
#ifdef USE_ITHREADS
-# define PmopSTASHPV(o) ((o)->op_pmstashpv)
-# define PmopSTASHPV_set(o,pv) (PmopSTASHPV(o) = savesharedpv(pv))
+# 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(PmopSTASHPV(o),GV_ADD) : NULL)
+ ? 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_pmstash)
-# define PmopSTASH_set(o,hv) ((o)->op_pmstash = (hv))
+# 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_pmstash is not refcounted */
+ /* 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
#endif
#define OpREFCNT_set(o,n) ((o)->op_targ = (n))
-#define OpREFCNT_inc(o) ((o) ? (++(o)->op_targ, (o)) : NULL)
-#define OpREFCNT_dec(o) (--(o)->op_targ)
+#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
struct madprop {
MADPROP* mad_next;
- void *mad_val;
+ const void *mad_val;
U32 mad_vlen;
/* short mad_count; */
char mad_key;
#endif
/*
- * Values that can be hold by mad_key :
+ * Values that can be held by mad_key :
* ^ unfilled head spot
* , literal ,
* ; literal ; (blank if implicit ; at end of block)
* 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
- * M my assignment slurped into some other operator's target
* n sub or format name
* o current operator/declarator name
* o else/continue
* Q optimized qw//
* r expression producing R
* R tr/E/R/ s/E/R/
- * R assign slurped by split
* s sub signature
* S use import stub (no import)
* S retired sort block
* _ 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:
+ */