* License or the Artistic License, as specified in the README file.
*
* Control ops (cops) are one of the two ops OP_NEXTSTATE and OP_DBSTATE,
- * that (loosely speaking) are separate statements.
+ * that (loosely speaking) are statement separators.
* They hold information important for lexical state and error reporting.
* At run time, PL_curcop is set to point to the most recently executed cop,
* and thus can be used to determine our current state.
struct jmpenv {
struct jmpenv * je_prev;
- Sigjmp_buf je_buf; /* only for use if !je_throw */
+ Sigjmp_buf je_buf; /* uninit if je_prev is NULL */
int je_ret; /* last exception thrown */
bool je_mustcatch; /* need to call longjmp()? */
+ U16 je_old_delaymagic; /* saved PL_delaymagic */
};
typedef struct jmpenv JMPENV;
-#ifdef OP_IN_REGISTER
-#define OP_REG_TO_MEM PL_opsave = op
-#define OP_MEM_TO_REG op = PL_opsave
-#else
-#define OP_REG_TO_MEM NOOP
-#define OP_MEM_TO_REG NOOP
-#endif
-
/*
* How to build the first jmpenv.
*
#define JMPENV_BOOTSTRAP \
STMT_START { \
- Zero(&PL_start_env, 1, JMPENV); \
+ PERL_POISON_EXPR(PoisonNew(&PL_start_env, 1, JMPENV));\
+ PL_top_env = &PL_start_env; \
+ PL_start_env.je_prev = NULL; \
PL_start_env.je_ret = -1; \
PL_start_env.je_mustcatch = TRUE; \
- PL_top_env = &PL_start_env; \
+ PL_start_env.je_old_delaymagic = 0; \
} STMT_END
/*
Perl_deb(aTHX_ "JUMPENV_PUSH level=%d at %s:%d\n", \
i, __FILE__, __LINE__);}) \
cur_env.je_prev = PL_top_env; \
- OP_REG_TO_MEM; \
cur_env.je_ret = PerlProc_setjmp(cur_env.je_buf, SCOPE_SAVES_SIGNAL_MASK); \
- OP_MEM_TO_REG; \
PL_top_env = &cur_env; \
cur_env.je_mustcatch = FALSE; \
+ cur_env.je_old_delaymagic = PL_delaymagic; \
(v) = cur_env.je_ret; \
} STMT_END
Perl_deb(aTHX_ "JUMPENV_POP level=%d at %s:%d\n", \
i, __FILE__, __LINE__);}) \
assert(PL_top_env == &cur_env); \
+ PL_delaymagic = cur_env.je_old_delaymagic; \
PL_top_env = cur_env.je_prev; \
} STMT_END
while (p) { i++; p = p->je_prev; } \
Perl_deb(aTHX_ "JUMPENV_JUMP(%d) level=%d at %s:%d\n", \
(int)v, i, __FILE__, __LINE__);}) \
- OP_REG_TO_MEM; \
if (PL_top_env->je_prev) \
PerlProc_longjmp(PL_top_env->je_buf, (v)); \
if ((v) == 2) \
PerlProc_exit(STATUS_EXIT); \
- PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); \
+ PerlIO_printf(PerlIO_stderr(), "panic: top_env, v=%d\n", (int)v); \
PerlProc_exit(1); \
} STMT_END
/*
=for apidoc Amx|SV *|cophh_fetch_pvn|const COPHH *cophh|const char *keypv|STRLEN keylen|U32 hash|U32 flags
-Look up the entry in the cop hints hash I<cophh> with the key specified by
-I<keypv> and I<keylen>. If I<flags> has the C<COPHH_KEY_UTF8> bit set,
+Look up the entry in the cop hints hash C<cophh> with the key specified by
+C<keypv> and C<keylen>. If C<flags> has the C<COPHH_KEY_UTF8> bit set,
the key octets are interpreted as UTF-8, otherwise they are interpreted
-as Latin-1. I<hash> is a precomputed hash of the key string, or zero if
+as Latin-1. C<hash> is a precomputed hash of the key string, or zero if
it has not been precomputed. Returns a mortal scalar copy of the value
associated with the key, or C<&PL_sv_placeholder> if there is no value
associated with the key.
=for apidoc Amx|HV *|cophh_2hv|const COPHH *cophh|U32 flags
Generates and returns a standard Perl hash representing the full set of
-key/value pairs in the cop hints hash I<cophh>. I<flags> is currently
+key/value pairs in the cop hints hash C<cophh>. C<flags> is currently
unused and must be zero.
=cut
/*
=for apidoc Amx|COPHH *|cophh_copy|COPHH *cophh
-Make and return a complete copy of the cop hints hash I<cophh>.
+Make and return a complete copy of the cop hints hash C<cophh>.
=cut
*/
/*
=for apidoc Amx|void|cophh_free|COPHH *cophh
-Discard the cop hints hash I<cophh>, freeing all resources associated
+Discard the cop hints hash C<cophh>, freeing all resources associated
with it.
=cut
/*
=for apidoc Amx|COPHH *|cophh_store_pvn|COPHH *cophh|const char *keypv|STRLEN keylen|U32 hash|SV *value|U32 flags
-Stores a value, associated with a key, in the cop hints hash I<cophh>,
+Stores a value, associated with a key, in the cop hints hash C<cophh>,
and returns the modified hash. The returned hash pointer is in general
not the same as the hash pointer that was passed in. The input hash is
consumed by the function, and the pointer to it must not be subsequently
used. Use L</cophh_copy> if you need both hashes.
-The key is specified by I<keypv> and I<keylen>. If I<flags> has the
+The key is specified by C<keypv> and C<keylen>. If C<flags> has the
C<COPHH_KEY_UTF8> bit set, the key octets are interpreted as UTF-8,
-otherwise they are interpreted as Latin-1. I<hash> is a precomputed
+otherwise they are interpreted as Latin-1. C<hash> is a precomputed
hash of the key string, or zero if it has not been precomputed.
-I<value> is the scalar value to store for this key. I<value> is copied
+C<value> is the scalar value to store for this key. C<value> is copied
by this function, which thus does not take ownership of any reference
to it, and later changes to the scalar will not be reflected in the
value visible in the cop hints hash. Complex types of scalar will not
/*
=for apidoc Amx|COPHH *|cophh_delete_pvn|COPHH *cophh|const char *keypv|STRLEN keylen|U32 hash|U32 flags
-Delete a key and its associated value from the cop hints hash I<cophh>,
+Delete a key and its associated value from the cop hints hash C<cophh>,
and returns the modified hash. The returned hash pointer is in general
not the same as the hash pointer that was passed in. The input hash is
consumed by the function, and the pointer to it must not be subsequently
used. Use L</cophh_copy> if you need both hashes.
-The key is specified by I<keypv> and I<keylen>. If I<flags> has the
+The key is specified by C<keypv> and C<keylen>. If C<flags> has the
C<COPHH_KEY_UTF8> bit set, the key octets are interpreted as UTF-8,
-otherwise they are interpreted as Latin-1. I<hash> is a precomputed
+otherwise they are interpreted as Latin-1. C<hash> is a precomputed
hash of the key string, or zero if it has not been precomputed.
=cut
line_t cop_line; /* line # of this command */
/* label for this construct is now stored in cop_hints_hash */
#ifdef USE_ITHREADS
- char * cop_stashpv; /* package line was compiled in */
+ PADOFFSET cop_stashoff; /* offset into PL_stashpad, for the
+ package the line was compiled in */
char * cop_file; /* file name the following line # is from */
#else
HV * cop_stash; /* package line was compiled in */
# ifdef NETWARE
# define CopFILE_set(c,pv) ((c)->cop_file = savepv(pv))
-# define CopFILE_setn(c,pv,l) ((c)->cop_file = savepv((pv),(l)))
+# define CopFILE_setn(c,pv,l) ((c)->cop_file = savepvn((pv),(l)))
# else
# define CopFILE_set(c,pv) ((c)->cop_file = savesharedpv(pv))
# define CopFILE_setn(c,pv,l) ((c)->cop_file = savesharedpvn((pv),(l)))
? GvSV(gv_fetchfile(CopFILE(c))) : NULL)
# define CopFILEAV(c) (CopFILE(c) \
? GvAV(gv_fetchfile(CopFILE(c))) : NULL)
-# ifdef DEBUGGING
-# define CopFILEAVx(c) (assert(CopFILE(c)), \
+# define CopFILEAVx(c) (assert_(CopFILE(c)) \
GvAV(gv_fetchfile(CopFILE(c))))
-# else
-# define CopFILEAVx(c) (GvAV(gv_fetchfile(CopFILE(c))))
-# endif
-# define CopSTASHPV(c) ((c)->cop_stashpv)
-
-# ifdef NETWARE
-# define CopSTASHPV_set(c,pv) ((c)->cop_stashpv = ((pv) ? savepv(pv) : NULL))
-# else
-# define CopSTASHPV_set(c,pv) ((c)->cop_stashpv = savesharedpv(pv))
-# endif
-# define CopSTASH(c) (CopSTASHPV(c) \
- ? gv_stashpv(CopSTASHPV(c),GV_ADD) : NULL)
-# define CopSTASH_set(c,hv) CopSTASHPV_set(c, (hv) ? HvNAME_get(hv) : NULL)
-# define CopSTASH_eq(c,hv) ((hv) && stashpv_hvname_match(c,hv))
+# define CopSTASH(c) PL_stashpad[(c)->cop_stashoff]
+# define CopSTASH_set(c,hv) ((c)->cop_stashoff = (hv) \
+ ? alloccopstash(hv) \
+ : 0)
# ifdef NETWARE
-# define CopSTASH_free(c) SAVECOPSTASH_FREE(c)
# define CopFILE_free(c) SAVECOPFILE_FREE(c)
# else
-# define CopSTASH_free(c) PerlMemShared_free(CopSTASHPV(c))
# define CopFILE_free(c) (PerlMemShared_free(CopFILE(c)),(CopFILE(c) = NULL))
# endif
#else
# else
# define CopFILEAVx(c) (GvAV(CopFILEGV(c)))
# endif
-# define CopFILE(c) (CopFILEGV(c) && GvSV(CopFILEGV(c)) \
- ? SvPVX(GvSV(CopFILEGV(c))) : NULL)
+# define CopFILE(c) (CopFILEGV(c) \
+ ? GvNAME(CopFILEGV(c))+2 : NULL)
# define CopSTASH(c) ((c)->cop_stash)
# define CopSTASH_set(c,hv) ((c)->cop_stash = (hv))
-# define CopSTASHPV(c) (CopSTASH(c) ? HvNAME_get(CopSTASH(c)) : NULL)
- /* cop_stash is not refcounted */
-# define CopSTASHPV_set(c,pv) CopSTASH_set((c), gv_stashpv(pv,GV_ADD))
-# define CopSTASH_eq(c,hv) (CopSTASH(c) == (hv))
-# define CopSTASH_free(c)
# define CopFILE_free(c) (SvREFCNT_dec(CopFILEGV(c)),(CopFILEGV(c) = NULL))
#endif /* USE_ITHREADS */
+#define CopSTASHPV(c) (CopSTASH(c) ? HvNAME_get(CopSTASH(c)) : NULL)
+ /* cop_stash is not refcounted */
+#define CopSTASHPV_set(c,pv) CopSTASH_set((c), gv_stashpv(pv,GV_ADD))
+#define CopSTASH_eq(c,hv) (CopSTASH(c) == (hv))
+
#define CopHINTHASH_get(c) ((COPHH*)((c)->cop_hints_hash))
#define CopHINTHASH_set(c,h) ((c)->cop_hints_hash = (h))
/*
=for apidoc Am|SV *|cop_hints_fetch_pvn|const COP *cop|const char *keypv|STRLEN keylen|U32 hash|U32 flags
-Look up the hint entry in the cop I<cop> with the key specified by
-I<keypv> and I<keylen>. If I<flags> has the C<COPHH_KEY_UTF8> bit set,
+Look up the hint entry in the cop C<cop> with the key specified by
+C<keypv> and C<keylen>. If C<flags> has the C<COPHH_KEY_UTF8> bit set,
the key octets are interpreted as UTF-8, otherwise they are interpreted
-as Latin-1. I<hash> is a precomputed hash of the key string, or zero if
+as Latin-1. C<hash> is a precomputed hash of the key string, or zero if
it has not been precomputed. Returns a mortal scalar copy of the value
associated with the key, or C<&PL_sv_placeholder> if there is no value
associated with the key.
=for apidoc Am|HV *|cop_hints_2hv|const COP *cop|U32 flags
Generates and returns a standard Perl hash representing the full set of
-hint entries in the cop I<cop>. I<flags> is currently unused and must
+hint entries in the cop C<cop>. C<flags> is currently unused and must
be zero.
=cut
cophh_2hv(CopHINTHASH_get(cop), flags)
#define CopLABEL(c) Perl_cop_fetch_label(aTHX_ (c), NULL, NULL)
+#define CopLABEL_len(c,len) Perl_cop_fetch_label(aTHX_ (c), len, NULL)
+#define CopLABEL_len_flags(c,len,flags) Perl_cop_fetch_label(aTHX_ (c), len, flags)
#define CopLABEL_alloc(pv) ((pv)?savepv(pv):NULL)
#define CopSTASH_ne(c,hv) (!CopSTASH_eq(c,hv))
/* OutCopFILE() is CopFILE for output (caller, die, warn, etc.) */
#define OutCopFILE(c) CopFILE(c)
-/* If $[ is non-zero, it's stored in cop_hints under the key "$[", and
- HINT_ARYBASE is set to indicate this.
- Setting it is inefficient due to the need to create 2 mortal SVs, but as
- using $[ is highly discouraged, no sane Perl code will be using it. */
-#define CopARYBASE_get(c) \
- ((CopHINTS_get(c) & HINT_ARYBASE) \
- ? SvIV(cop_hints_fetch_pvs((c), "$[", 0)) \
- : 0)
-#define CopARYBASE_set(c, b) STMT_START { \
- if (b || ((c)->cop_hints & HINT_ARYBASE)) { \
- (c)->cop_hints |= HINT_ARYBASE; \
- if ((c) == &PL_compiling) { \
- SV *val = newSViv(b); \
- (void)hv_stores(GvHV(PL_hintgv), "$[", val); \
- mg_set(val); \
- PL_hints |= HINT_ARYBASE; \
- } else { \
- CopHINTHASH_set((c), \
- cophh_store_pvs(CopHINTHASH_get((c)), "$[", \
- sv_2mortal(newSViv(b)), 0)); \
- } \
- } \
- } STMT_END
-
-/* FIXME NATIVE_HINTS if this is changed from op_private (see perl.h) */
#define CopHINTS_get(c) ((c)->cop_hints + 0)
#define CopHINTS_set(c, h) STMT_START { \
(c)->cop_hints = (h); \
/* subroutine context */
struct block_sub {
OP * retop; /* op to execute on exit from sub */
+ I32 old_savestack_ix; /* saved PL_savestack_ix (also CXt_NULL) */
+ SSize_t old_tmpsfloor; /* also used in CXt_NULL sort block */
/* Above here is the same for sub, format and eval. */
+ PAD *prevcomppad; /* the caller's PL_comppad */
CV * cv;
/* Above here is the same for sub and format. */
- AV * savearray;
- AV * argarray;
I32 olddepth;
- PAD *oldcomppad;
+ AV *savearray;
};
/* format context */
struct block_format {
OP * retop; /* op to execute on exit from sub */
+ I32 old_savestack_ix; /* saved PL_savestack_ix (also CXt_NULL) */
+ SSize_t old_tmpsfloor; /* also used in CXt_NULL sort block */
/* Above here is the same for sub, format and eval. */
+ PAD *prevcomppad; /* the caller's PL_comppad */
CV * cv;
/* Above here is the same for sub and format. */
GV * gv;
};
/* base for the next two macros. Don't use directly.
- * Note that the refcnt of the cv is incremented twice; The CX one is
- * decremented by LEAVESUB, the other by LEAVE. */
+ * The context frame holds a reference to the CV so that it can't be
+ * freed while we're executing it */
#define PUSHSUB_BASE(cx) \
- ENTRY_PROBE(GvENAME(CvGV(cv)), \
+ ENTRY_PROBE(CvNAMED(cv) \
+ ? HEK_KEY(CvNAME_HEK(cv)) \
+ : GvENAME(CvGV(cv)), \
CopFILE((const COP *)CvSTART(cv)), \
CopLINE((const COP *)CvSTART(cv)), \
CopSTASHPV((const COP *)CvSTART(cv))); \
\
cx->blk_sub.cv = cv; \
cx->blk_sub.olddepth = CvDEPTH(cv); \
+ cx->blk_sub.prevcomppad = PL_comppad; \
cx->cx_type |= (hasargs) ? CXp_HASARGS : 0; \
cx->blk_sub.retop = NULL; \
- if (!CvDEPTH(cv)) { \
- SvREFCNT_inc_simple_void_NN(cv); \
- SvREFCNT_inc_simple_void_NN(cv); \
- SAVEFREESV(cv); \
- }
-
+ SvREFCNT_inc_simple_void_NN(cv); \
+ cx->blk_sub.old_tmpsfloor = PL_tmps_floor; \
+ PL_tmps_floor = PL_tmps_ix;
-#define PUSHSUB(cx) \
- { \
+#define PUSHSUB_GET_LVALUE_MASK(func) \
/* If the context is indeterminate, then only the lvalue */ \
/* flags that the caller also has are applicable. */ \
- U8 phlags = \
+ ( \
(PL_op->op_flags & OPf_WANT) \
? OPpENTERSUB_LVAL_MASK \
: !(PL_op->op_private & OPpENTERSUB_LVAL_MASK) \
- ? 0 : Perl_was_lvalue_sub(aTHX); \
+ ? 0 : (U8)func(aTHX) \
+ )
+
+#define PUSHSUB(cx) \
+ { \
+ U8 phlags = PUSHSUB_GET_LVALUE_MASK(Perl_was_lvalue_sub); \
PUSHSUB_BASE(cx) \
cx->blk_u16 = PL_op->op_private & \
- (phlags|OPpENTERSUB_DEREF); \
+ (phlags|OPpDEREF); \
}
/* variant for use by OP_DBSTATE, where op_private holds hint bits */
cx->blk_format.gv = gv; \
cx->blk_format.retop = (retop); \
cx->blk_format.dfoutgv = PL_defoutgv; \
+ cx->blk_format.prevcomppad = PL_comppad; \
+ cx->blk_u16 = 0; \
+ cx->blk_format.old_savestack_ix = PL_savestack_ix; \
+ cx->blk_format.old_tmpsfloor = PL_tmps_floor; \
+ PL_tmps_floor = PL_tmps_ix; \
+ SvREFCNT_inc_simple_void_NN(cv); \
+ CvDEPTH(cv)++; \
SvREFCNT_inc_void(cx->blk_format.dfoutgv)
+/* Restore old @_ */
#define POP_SAVEARRAY() \
STMT_START { \
- SvREFCNT_dec(GvAV(PL_defgv)); \
+ AV *av = GvAV(PL_defgv); \
GvAV(PL_defgv) = cx->blk_sub.savearray; \
+ SvREFCNT_dec(av); \
} STMT_END
/* junk in @_ spells trouble when cloning CVs and in pp_caller(), so don't
#define POPSUB(cx,sv) \
STMT_START { \
- RETURN_PROBE(GvENAME(CvGV((const CV*)cx->blk_sub.cv)), \
+ LEAVE_SCOPE(cx->blk_sub.old_savestack_ix); \
+ if (!(cx->blk_u16 & CxPOPSUB_DONE)) { \
+ cx->blk_u16 |= CxPOPSUB_DONE; \
+ RETURN_PROBE(CvNAMED(cx->blk_sub.cv) \
+ ? HEK_KEY(CvNAME_HEK(cx->blk_sub.cv)) \
+ : GvENAME(CvGV(cx->blk_sub.cv)), \
CopFILE((COP*)CvSTART((const CV*)cx->blk_sub.cv)), \
CopLINE((COP*)CvSTART((const CV*)cx->blk_sub.cv)), \
CopSTASHPV((COP*)CvSTART((const CV*)cx->blk_sub.cv))); \
\
if (CxHASARGS(cx)) { \
+ AV *av; \
+ assert(AvARRAY(MUTABLE_AV( \
+ PadlistARRAY(CvPADLIST(cx->blk_sub.cv))[ \
+ CvDEPTH(cx->blk_sub.cv)])) == PL_curpad); \
POP_SAVEARRAY(); \
/* abandon @_ if it got reified */ \
- if (AvREAL(cx->blk_sub.argarray)) { \
- const SSize_t fill = AvFILLp(cx->blk_sub.argarray); \
- SvREFCNT_dec(cx->blk_sub.argarray); \
- cx->blk_sub.argarray = newAV(); \
- av_extend(cx->blk_sub.argarray, fill); \
- AvREIFY_only(cx->blk_sub.argarray); \
- CX_CURPAD_SV(cx->blk_sub, 0) = MUTABLE_SV(cx->blk_sub.argarray); \
- } \
+ av = MUTABLE_AV(PAD_SVl(0)); \
+ if (UNLIKELY(AvREAL(av))) \
+ clear_defarray(av, 0); \
else { \
- CLEAR_ARGARRAY(cx->blk_sub.argarray); \
+ CLEAR_ARGARRAY(av); \
} \
} \
+ } \
+ PL_tmps_floor = cx->blk_sub.old_tmpsfloor; \
+ PL_comppad = cx->blk_sub.prevcomppad; \
+ PL_curpad = LIKELY(PL_comppad) ? AvARRAY(PL_comppad) : NULL; \
sv = MUTABLE_SV(cx->blk_sub.cv); \
- if (sv && (CvDEPTH((const CV*)sv) = cx->blk_sub.olddepth)) \
- sv = NULL; \
+ CvDEPTH((const CV*)sv) = cx->blk_sub.olddepth; \
} STMT_END
#define LEAVESUB(sv) \
STMT_START { \
- if (sv) \
- SvREFCNT_dec(sv); \
+ SvREFCNT_dec(sv); \
} STMT_END
#define POPFORMAT(cx) \
- setdefout(cx->blk_format.dfoutgv); \
- SvREFCNT_dec(cx->blk_format.dfoutgv);
+ STMT_START { \
+ LEAVE_SCOPE(cx->blk_format.old_savestack_ix); \
+ if (!(cx->blk_u16 & CxPOPSUB_DONE)) { \
+ CV * const cv = cx->blk_format.cv; \
+ GV * const dfuot = cx->blk_format.dfoutgv; \
+ cx->blk_u16 |= CxPOPSUB_DONE; \
+ PL_tmps_floor = cx->blk_format.old_tmpsfloor; \
+ setdefout(dfuot); \
+ PL_comppad = cx->blk_format.prevcomppad; \
+ PL_curpad = LIKELY(PL_comppad) ? AvARRAY(PL_comppad) : NULL; \
+ --CvDEPTH(cv); \
+ SvREFCNT_dec_NN(cx->blk_format.cv); \
+ SvREFCNT_dec_NN(dfuot); \
+ } \
+ } STMT_END
/* eval context */
struct block_eval {
OP * retop; /* op to execute on exit from eval */
+ I32 old_savestack_ix; /* saved PL_savestack_ix (also CXt_NULL) */
+ SSize_t old_tmpsfloor; /* also used in CXt_NULL sort block */
/* Above here is the same for sub, format and eval. */
SV * old_namesv;
OP * old_eval_root;
assert(!(PL_in_eval & ~0x7F)); \
assert(!(PL_op->op_type & ~0x1FF)); \
cx->blk_u16 = (PL_in_eval & 0x7F) | ((U16)PL_op->op_type << 7); \
+ cx->blk_eval.old_tmpsfloor = PL_tmps_floor; \
+ PL_tmps_floor = PL_tmps_ix; \
cx->blk_eval.old_namesv = (n ? newSVpv(n,0) : NULL); \
cx->blk_eval.old_eval_root = PL_eval_root; \
cx->blk_eval.cur_text = PL_parser ? PL_parser->linestr : NULL; \
PL_in_eval = CxOLD_IN_EVAL(cx); \
optype = CxOLD_OP_TYPE(cx); \
PL_eval_root = cx->blk_eval.old_eval_root; \
+ if (cx->blk_eval.cur_text && SvSCREAM(cx->blk_eval.cur_text)) \
+ SvREFCNT_dec_NN(cx->blk_eval.cur_text); \
if (cx->blk_eval.old_namesv) \
sv_2mortal(cx->blk_eval.old_namesv); \
} STMT_END
/* loop context */
struct block_loop {
I32 resetsp;
+ I32 old_savestack_ix; /* saved PL_savestack_ix (also CXt_NULL) */
LOOP * my_op; /* My op, that contains redo, next and last ops. */
union { /* different ways of locating the iteration variable */
- SV **svp;
- GV *gv;
- PAD *oldcomppad; /* only used in ITHREADS */
+ SV **svp; /* for lexicals: address of pad slot */
+ GV *gv; /* for package vars */
} itervar_u;
+ SV *itersave; /* the original iteration var */
union {
struct { /* valid if type is LOOP_FOR or LOOP_PLAIN (but {NULL,0})*/
AV * ary; /* use the stack if this is NULL */
SV * end; /* maxiumum value (or minimum in reverse) */
} lazysv;
} state_u;
-};
-
#ifdef USE_ITHREADS
-# define CxITERVAR_PADSV(c) \
- &CX_CURPAD_SV( (c)->blk_loop.itervar_u, (c)->blk_loop.my_op->op_targ)
-#else
-# define CxITERVAR_PADSV(c) ((c)->blk_loop.itervar_u.svp)
+ PAD *oldcomppad; /* needed to map itervar_u.svp during thread clone */
#endif
+};
-#define CxITERVAR(c) \
- ((c)->blk_loop.itervar_u.oldcomppad \
- ? (CxPADLOOP(c) \
- ? CxITERVAR_PADSV(c) \
- : &GvSV((c)->blk_loop.itervar_u.gv)) \
- : (SV**)NULL)
+#define CxITERVAR(c) \
+ (CxPADLOOP(c) \
+ ? (c)->blk_loop.itervar_u.svp \
+ : ((c)->cx_type & CXp_FOR_GV) \
+ ? &GvSV((c)->blk_loop.itervar_u.gv) \
+ : (SV **)&(c)->blk_loop.itervar_u.gv)
#define CxLABEL(c) (0 + CopLABEL((c)->blk_oldcop))
+#define CxLABEL_len(c,len) (0 + CopLABEL_len((c)->blk_oldcop, len))
+#define CxLABEL_len_flags(c,len,flags) (0 + CopLABEL_len_flags((c)->blk_oldcop, len, flags))
#define CxHASARGS(c) (((c)->cx_type & CXp_HASARGS) == CXp_HASARGS)
-#define CxLVAL(c) (0 + (c)->blk_u16)
+#define CxLVAL(c) (0 + ((c)->blk_u16 & 0xff))
+/* POPSUB has already been performed on this context frame */
+#define CxPOPSUB_DONE 0x100
+
#define PUSHLOOP_PLAIN(cx, s) \
cx->blk_loop.resetsp = s - PL_stack_base; \
cx->blk_loop.my_op = cLOOP; \
cx->blk_loop.state_u.ary.ary = NULL; \
cx->blk_loop.state_u.ary.ix = 0; \
- cx->blk_loop.itervar_u.svp = NULL;
+ cx->blk_loop.old_savestack_ix = PL_savestack_ix; \
+ cx->blk_loop.itervar_u.svp = NULL; \
+ cx->blk_loop.itersave = NULL;
-#define PUSHLOOP_FOR(cx, ivar, s) \
+#ifdef USE_ITHREADS
+# define PUSHLOOP_FOR_setpad(c) (c)->blk_loop.oldcomppad = PL_comppad
+#else
+# define PUSHLOOP_FOR_setpad(c) NOOP
+#endif
+
+#define PUSHLOOP_FOR(cx, ivar, isave, s) \
cx->blk_loop.resetsp = s - PL_stack_base; \
cx->blk_loop.my_op = cLOOP; \
cx->blk_loop.state_u.ary.ary = NULL; \
cx->blk_loop.state_u.ary.ix = 0; \
- cx->blk_loop.itervar_u.svp = (SV**)(ivar);
+ cx->blk_loop.itervar_u.svp = (SV**)(ivar); \
+ cx->blk_loop.old_savestack_ix = PL_savestack_ix; \
+ cx->blk_loop.itersave = isave; \
+ PUSHLOOP_FOR_setpad(cx);
#define POPLOOP(cx) \
+ LEAVE_SCOPE(cx->blk_loop.old_savestack_ix); \
if (CxTYPE(cx) == CXt_LOOP_LAZYSV) { \
- SvREFCNT_dec(cx->blk_loop.state_u.lazysv.cur); \
- SvREFCNT_dec(cx->blk_loop.state_u.lazysv.end); \
+ SvREFCNT_dec_NN(cx->blk_loop.state_u.lazysv.cur); \
+ SvREFCNT_dec_NN(cx->blk_loop.state_u.lazysv.end); \
} \
- if (CxTYPE(cx) == CXt_LOOP_FOR) \
- SvREFCNT_dec(cx->blk_loop.state_u.ary.ary);
+ else if (CxTYPE(cx) == CXt_LOOP_FOR) \
+ SvREFCNT_dec(cx->blk_loop.state_u.ary.ary); \
+ if (cx->cx_type & (CXp_FOR_PAD|CXp_FOR_GV)) { \
+ SV **svp = (cx)->blk_loop.itervar_u.svp; \
+ SV *cursv; \
+ if ((cx->cx_type & CXp_FOR_GV)) { \
+ svp = &GvSV((GV*)svp); \
+ cursv = *svp; \
+ *svp = cx->blk_loop.itersave; \
+ } \
+ else { \
+ cursv = *svp; \
+ *svp = cx->blk_loop.itersave; \
+ } \
+ SvREFCNT_dec(cursv); \
+ }
/* given/when context */
struct block_givwhen {
U8 sbu_type; /* what kind of context this is */
U8 sbu_rflags;
U16 sbu_rxtainted; /* matches struct block */
- I32 sbu_iters;
- I32 sbu_maxiters;
I32 sbu_oldsave;
+ SSize_t sbu_iters;
+ SSize_t sbu_maxiters;
char * sbu_orig;
SV * sbu_dstr;
SV * sbu_targ;
cx->sb_rx = rx, \
cx->cx_type = CXt_SUBST | (once ? CXp_ONCE : 0); \
rxres_save(&cx->sb_rxres, rx); \
- (void)ReREFCNT_inc(rx)
+ (void)ReREFCNT_inc(rx); \
+ SvREFCNT_inc_void_NN(targ)
# define POPSUBST(cx) cx = &cxstack[cxstack_ix--]; \
rxres_free(&cx->sb_rxres); \
- ReREFCNT_dec(cx->sb_rx)
+ ReREFCNT_dec(cx->sb_rx); \
+ SvREFCNT_dec_NN(cx->sb_targ)
#endif
#define CxONCE(cx) ((cx)->cx_type & CXp_ONCE)
/* private flags for CXt_SUB and CXt_FORMAT */
#define CXp_HASARGS 0x20
+#define CXp_SUB_RE 0x40 /* code called within regex, i.e. (?{}) */
+#define CXp_SUB_RE_FAKE 0x80 /* fake sub CX for (?{}) in current scope */
/* private flags for CXt_EVAL */
#define CXp_REAL 0x20 /* truly eval'', not a lookalike */
/* private flags for CXt_LOOP */
#define CXp_FOR_DEF 0x10 /* foreach using $_ */
-#define CxPADLOOP(c) ((c)->blk_loop.my_op->op_targ)
+#define CXp_FOR_LVREF 0x20 /* foreach using \$var */
+#define CXp_FOR_GV 0x40 /* foreach using package var */
+#define CXp_FOR_PAD 0x80 /* foreach using lexical var */
+#define CxPADLOOP(c) ((c)->cx_type & CXp_FOR_PAD)
/* private flags for CXt_SUBST */
#define CXp_ONCE 0x10 /* What was sbu_once in struct subst */
/*
=for apidoc AmU||G_SCALAR
-Used to indicate scalar context. See C<GIMME_V>, C<GIMME>, and
+Used to indicate scalar context. See C<L</GIMME_V>>, C<L</GIMME>>, and
L<perlcall>.
=for apidoc AmU||G_ARRAY
-Used to indicate list context. See C<GIMME_V>, C<GIMME> and
+Used to indicate list context. See C<L</GIMME_V>>, C<L</GIMME>> and
L<perlcall>.
=for apidoc AmU||G_VOID
-Used to indicate void context. See C<
GIMME_V> and L<perlcall>.
+Used to indicate void context. See C<
L</GIMME_V>> and L<perlcall>.
=for apidoc AmU||G_DISCARD
Indicates that arguments returned from a callback should be discarded. See
Perl_magic_methcall(). */
#define G_WRITING_TO_STDERR 1024 /* Perl_write_to_stderr() is calling
Perl_magic_methcall(). */
+#define G_RE_REPARSING 0x800 /* compiling a run-time /(?{..})/ */
+#define G_METHOD_NAMED 4096 /* calling named method, eg without :: or ' */
/* flag bits for PL_in_eval */
#define EVAL_NULL 0 /* not in an eval */
#define EVAL_WARNONLY 2 /* used by yywarn() when calling yyerror() */
#define EVAL_KEEPERR 4 /* set by Perl_call_sv if G_KEEPERR */
#define EVAL_INREQUIRE 8 /* The code is being required. */
+#define EVAL_RE_REPARSING 0x10 /* eval_sv() called with G_RE_REPARSING */
/* Support for switching (stack and block) contexts.
* This ensures magic doesn't invalidate local stack and cx pointers.
#define PERLSI_WARNHOOK 7
#define PERLSI_DIEHOOK 8
#define PERLSI_REQUIRE 9
+#define PERLSI_MULTICALL 10
struct stackinfo {
AV * si_stack; /* stack for current runlevel */
Perl_deb(aTHX_ "pop STACKINFO %d at %s:%d\n", \
i, __FILE__, __LINE__);}) \
if (!prev) { \
- PerlIO_printf(Perl_error_log, "panic: POPSTACK\n"); \
- my_exit(1); \
+ Perl_croak_popstack(); \
} \
SWITCHSTACK(PL_curstack,prev->si_stack); \
/* don't free prev here, free them all at the END{} */ \
=head1 Multicall Functions
=for apidoc Ams||dMULTICALL
-Declare local variables for a multicall. See L<perlcall/LIGHTWEIGHT CALLBACKS>.
+Declare local variables for a multicall.
See L<perlcall/LIGHTWEIGHT CALLBACKS>.
=for apidoc Ams||PUSH_MULTICALL
Opening bracket for a lightweight callback.
See L<perlcall/LIGHTWEIGHT CALLBACKS>.
=for apidoc Ams||MULTICALL
-Make a lightweight callback. See L<perlcall/LIGHTWEIGHT CALLBACKS>.
+Make a lightweight callback.
See L<perlcall/LIGHTWEIGHT CALLBACKS>.
=for apidoc Ams||POP_MULTICALL
Closing bracket for a lightweight callback.
U8 hasargs = 0 /* used by PUSHSUB */
#define PUSH_MULTICALL(the_cv) \
+ PUSH_MULTICALL_FLAGS(the_cv, 0)
+
+/* Like PUSH_MULTICALL, but allows you to specify extra flags
+ * for the CX stack entry (this isn't part of the public API) */
+
+#define PUSH_MULTICALL_FLAGS(the_cv, flags) \
STMT_START { \
CV * const _nOnclAshIngNamE_ = the_cv; \
CV * const cv = _nOnclAshIngNamE_; \
- AV * const padlist = CvPADLIST(cv); \
- ENTER; \
+ PADLIST * const padlist = CvPADLIST(cv); \
multicall_oldcatch = CATCH_GET; \
- SAVETMPS; SAVEVPTR(PL_op); \
CATCH_SET(TRUE); \
- PUSHSTACKi(PERLSI_SORT); \
- PUSHBLOCK(cx, CXt_SUB|CXp_MULTICALL, PL_stack_sp); \
+ PUSHSTACKi(PERLSI_MULTICALL); \
+ PUSHBLOCK(cx, (CXt_SUB|CXp_MULTICALL|flags), PL_stack_sp); \
PUSHSUB(cx); \
- if (++CvDEPTH(cv) >= 2) { \
+ cx->blk_sub.old_savestack_ix = PL_savestack_ix; \
+ SAVEVPTR(PL_op); \
+ if (!(flags & CXp_SUB_RE_FAKE)) \
+ CvDEPTH(cv)++; \
+ if (CvDEPTH(cv) >= 2) { \
PERL_STACK_OVERFLOW_CHECK(); \
Perl_pad_push(aTHX_ padlist, CvDEPTH(cv)); \
} \
- SAVECOMPPAD(); \
PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); \
multicall_cv = cv; \
multicall_cop = CvSTART(cv); \
#define POP_MULTICALL \
STMT_START { \
- if (! --CvDEPTH(multicall_cv)) \
- LEAVESUB(multicall_cv); \
+ cx = &cxstack[cxstack_ix]; \
+ CvDEPTH(multicall_cv) = cx->blk_sub.olddepth; \
+ LEAVESUB(multicall_cv); \
POPBLOCK(cx,PL_curpm); \
+ /* includes partial unrolled POPSUB(): */ \
+ LEAVE_SCOPE(cx->blk_sub.old_savestack_ix); \
+ PL_comppad = cx->blk_sub.prevcomppad; \
+ PL_curpad = LIKELY(PL_comppad) ? AvARRAY(PL_comppad) : NULL; \
POPSTACK; \
CATCH_SET(multicall_oldcatch); \
- LEAVE; \
SPAGAIN; \
} STMT_END
+/* Change the CV of an already-pushed MULTICALL CxSUB block.
+ * (this isn't part of the public API) */
+
+#define CHANGE_MULTICALL_FLAGS(the_cv, flags) \
+ STMT_START { \
+ CV * const _nOnclAshIngNamE_ = the_cv; \
+ CV * const cv = _nOnclAshIngNamE_; \
+ PADLIST * const padlist = CvPADLIST(cv); \
+ cx = &cxstack[cxstack_ix]; \
+ assert(cx->cx_type & CXp_MULTICALL); \
+ CvDEPTH(multicall_cv) = cx->blk_sub.olddepth; \
+ LEAVESUB(multicall_cv); \
+ cx->cx_type = (CXt_SUB|CXp_MULTICALL|flags); \
+ { \
+ /* save a few things that we don't want PUSHSUB to zap */ \
+ PAD * const prevcomppad = cx->blk_sub.prevcomppad; \
+ SSize_t old_floor = cx->blk_sub.old_tmpsfloor; \
+ SSize_t floor = PL_tmps_floor; \
+ PUSHSUB(cx); \
+ /* undo the stuff that PUSHSUB zapped */ \
+ cx->blk_sub.prevcomppad = prevcomppad ; \
+ cx->blk_sub.old_tmpsfloor = old_floor; \
+ PL_tmps_floor = floor; \
+ } \
+ if (!(flags & CXp_SUB_RE_FAKE)) \
+ CvDEPTH(cv)++; \
+ if (CvDEPTH(cv) >= 2) { \
+ PERL_STACK_OVERFLOW_CHECK(); \
+ Perl_pad_push(aTHX_ padlist, CvDEPTH(cv)); \
+ } \
+ PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); \
+ multicall_cv = cv; \
+ multicall_cop = CvSTART(cv); \
+ } STMT_END
/*
- * Local variables:
- * c-indentation-style: bsd
- * c-basic-offset: 4
- * indent-tabs-mode: t
- * End:
- *
- * ex: set ts=8 sts=4 sw=4 noet:
+ * ex: set ts=8 sts=4 sw=4 et:
*/
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