/* cop.h
*
- * Copyright (c) 1991-2002, Larry Wall
+ * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ * 2000, 2001, 2002, 2003, 2004, 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.
*
+ * Control ops (cops) are one of the three ops OP_NEXTSTATE, OP_DBSTATE,
+ * and OP_SETSTATE that (loosely speaking) are separate statements.
+ * 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 cop {
# define CopFILEGV(c) (CopFILE(c) \
? gv_fetchfile(CopFILE(c)) : Nullgv)
- #ifdef NETWARE
- #define CopFILE_set(c,pv) ((c)->cop_file = savepv(pv))
- #else
- #define CopFILE_set(c,pv) ((c)->cop_file = savesharedpv(pv))
- #endif
+# ifdef NETWARE
+# define CopFILE_set(c,pv) ((c)->cop_file = savepv(pv))
+# else
+# define CopFILE_set(c,pv) ((c)->cop_file = savesharedpv(pv))
+# endif
# define CopFILESV(c) (CopFILE(c) \
? GvSV(gv_fetchfile(CopFILE(c))) : Nullsv)
? GvAV(gv_fetchfile(CopFILE(c))) : Nullav)
# define CopSTASHPV(c) ((c)->cop_stashpv)
- #ifdef NETWARE
- #define CopSTASHPV_set(c,pv) ((c)->cop_stashpv = ((pv) ? savepv(pv) : Nullch))
- #else
- #define CopSTASHPV_set(c,pv) ((c)->cop_stashpv = savesharedpv(pv))
- #endif
+# ifdef NETWARE
+# define CopSTASHPV_set(c,pv) ((c)->cop_stashpv = ((pv) ? savepv(pv) : Nullch))
+# else
+# define CopSTASHPV_set(c,pv) ((c)->cop_stashpv = savesharedpv(pv))
+# endif
# define CopSTASH(c) (CopSTASHPV(c) \
? gv_stashpv(CopSTASHPV(c),GV_ADD) : Nullhv)
&& (CopSTASHPV(c) == HvNAME(hv) \
|| (CopSTASHPV(c) && HvNAME(hv) \
&& strEQ(CopSTASHPV(c), HvNAME(hv)))))
- #ifdef NETWARE
- #define CopSTASH_free(c) SAVECOPSTASH_FREE(c)
- #else
- #define CopSTASH_free(c) PerlMemShared_free(CopSTASHPV(c))
- #endif
-
- #ifdef NETWARE
- #define CopFILE_free(c) SAVECOPFILE_FREE(c)
- #else
- #define CopFILE_free(c) (PerlMemShared_free(CopFILE(c)),(CopFILE(c) = Nullch))
- #endif
+# ifdef NETWARE
+# define CopSTASH_free(c) SAVECOPSTASH_FREE(c)
+# else
+# define CopSTASH_free(c) PerlMemShared_free(CopSTASHPV(c))
+# endif
+
+# ifdef NETWARE
+# define CopFILE_free(c) SAVECOPFILE_FREE(c)
+# else
+# define CopFILE_free(c) (PerlMemShared_free(CopFILE(c)),(CopFILE(c) = Nullch))
+# endif
#else
# define CopFILEGV(c) ((c)->cop_filegv)
# define CopFILEGV_set(c,gv) ((c)->cop_filegv = (GV*)SvREFCNT_inc(gv))
CV * cv;
GV * gv;
GV * dfoutgv;
-#ifndef USE_5005THREADS
AV * savearray;
-#endif /* USE_5005THREADS */
AV * argarray;
- U16 olddepth;
+ long olddepth;
U8 hasargs;
U8 lval; /* XXX merge lval and hasargs? */
- SV ** oldcurpad;
+ PAD *oldcomppad;
};
-#define PUSHSUB(cx) \
+/* 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. */
+
+#define PUSHSUB_BASE(cx) \
cx->blk_sub.cv = cv; \
- cx->blk_sub.olddepth = (U16)CvDEPTH(cv); \
+ cx->blk_sub.olddepth = CvDEPTH(cv); \
cx->blk_sub.hasargs = hasargs; \
+ if (!CvDEPTH(cv)) { \
+ (void)SvREFCNT_inc(cv); \
+ (void)SvREFCNT_inc(cv); \
+ SAVEFREESV(cv); \
+ }
+
+
+#define PUSHSUB(cx) \
+ PUSHSUB_BASE(cx) \
cx->blk_sub.lval = PL_op->op_private & \
(OPpLVAL_INTRO|OPpENTERSUB_INARGS);
+/* variant for use by OP_DBSTATE, where op_private holds hint bits */
+#define PUSHSUB_DB(cx) \
+ PUSHSUB_BASE(cx) \
+ cx->blk_sub.lval = 0;
+
+
#define PUSHFORMAT(cx) \
cx->blk_sub.cv = cv; \
cx->blk_sub.gv = gv; \
cx->blk_sub.dfoutgv = PL_defoutgv; \
(void)SvREFCNT_inc(cx->blk_sub.dfoutgv)
-#ifdef USE_5005THREADS
-# define POP_SAVEARRAY() NOOP
-#else
-# define POP_SAVEARRAY() \
+#define POP_SAVEARRAY() \
STMT_START { \
SvREFCNT_dec(GvAV(PL_defgv)); \
GvAV(PL_defgv) = cx->blk_sub.savearray; \
} STMT_END
-#endif /* USE_5005THREADS */
/* junk in @_ spells trouble when cloning CVs and in pp_caller(), so don't
* leave any (a fast av_clear(ary), basically) */
cx->blk_sub.argarray = newAV(); \
av_extend(cx->blk_sub.argarray, fill); \
AvFLAGS(cx->blk_sub.argarray) = AVf_REIFY; \
- cx->blk_sub.oldcurpad[0] = (SV*)cx->blk_sub.argarray; \
+ CX_CURPAD_SV(cx->blk_sub, 0) = (SV*)cx->blk_sub.argarray; \
} \
else { \
CLEAR_ARGARRAY(cx->blk_sub.argarray); \
OP * last_op;
#ifdef USE_ITHREADS
void * iterdata;
- SV ** oldcurpad;
+ PAD *oldcomppad;
#else
SV ** itervar;
#endif
# define CxITERVAR(c) \
((c)->blk_loop.iterdata \
? (CxPADLOOP(cx) \
- ? &((c)->blk_loop.oldcurpad)[INT2PTR(PADOFFSET, (c)->blk_loop.iterdata)] \
+ ? &CX_CURPAD_SV( (c)->blk_loop, \
+ INT2PTR(PADOFFSET, (c)->blk_loop.iterdata)) \
: &GvSV((GV*)(c)->blk_loop.iterdata)) \
: (SV**)NULL)
# define CX_ITERDATA_SET(cx,idata) \
- cx->blk_loop.oldcurpad = PL_curpad; \
+ CX_CURPAD_SAVE(cx->blk_loop); \
if ((cx->blk_loop.iterdata = (idata))) \
cx->blk_loop.itersave = SvREFCNT_inc(*CxITERVAR(cx)); \
else \
PL_retstack_ix = cx->blk_oldretsp, \
pm = cx->blk_oldpm, \
gimme = cx->blk_gimme; \
+ DEBUG_SCOPE("POPBLOCK"); \
DEBUG_l( PerlIO_printf(Perl_debug_log, "Leaving block %ld, type %s\n", \
(long)cxstack_ix+1,PL_block_type[CxTYPE(cx)]); )
PL_markstack_ptr = PL_markstack + cx->blk_oldmarksp, \
PL_scopestack_ix = cx->blk_oldscopesp, \
PL_retstack_ix = cx->blk_oldretsp, \
- PL_curpm = cx->blk_oldpm
+ PL_curpm = cx->blk_oldpm; \
+ DEBUG_SCOPE("TOPBLOCK");
/* substitution context */
struct subst {
POPSTACK; \
} \
} STMT_END
+
+#define IN_PERL_COMPILETIME (PL_curcop == &PL_compiling)
+#define IN_PERL_RUNTIME (PL_curcop != &PL_compiling)
+
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