/* cop.h
*
- * Copyright (c) 1991-1999, Larry Wall
+ * Copyright (c) 1991-2000, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
struct cop {
BASEOP
char * cop_label; /* label for this construct */
+#ifdef USE_ITHREADS
+ char * cop_stashpv; /* package line was compiled in */
+ char * cop_file; /* file name the following line # is from */
+#else
HV * cop_stash; /* package line was compiled in */
GV * cop_filegv; /* file the following line # is from */
+#endif
U32 cop_seq; /* parse sequence number */
I32 cop_arybase; /* array base this line was compiled with */
line_t cop_line; /* line # of this command */
#define Nullcop Null(COP*)
+#ifdef USE_ITHREADS
+# define CopFILE(c) ((c)->cop_file)
+# define CopFILEGV(c) (CopFILE(c) \
+ ? gv_fetchfile(CopFILE(c)) : Nullgv)
+# define CopFILE_set(c,pv) ((c)->cop_file = savepv(pv)) /* XXX */
+# define CopFILESV(c) (CopFILE(c) \
+ ? GvSV(gv_fetchfile(CopFILE(c))) : Nullsv)
+# define CopFILEAV(c) (CopFILE(c) \
+ ? GvAV(gv_fetchfile(CopFILE(c))) : Nullav)
+# define CopSTASHPV(c) ((c)->cop_stashpv)
+# define CopSTASHPV_set(c,pv) ((c)->cop_stashpv = savepv(pv)) /* XXX */
+# define CopSTASH(c) (CopSTASHPV(c) \
+ ? gv_stashpv(CopSTASHPV(c),GV_ADD) : Nullhv)
+# define CopSTASH_set(c,hv) CopSTASHPV_set(c, HvNAME(hv))
+# define CopSTASH_eq(c,hv) (hv \
+ && (CopSTASHPV(c) == HvNAME(hv) \
+ || (CopSTASHPV(c) && HvNAME(hv) \
+ && strEQ(CopSTASHPV(c), HvNAME(hv)))))
+#else
+# define CopFILEGV(c) ((c)->cop_filegv)
+# define CopFILEGV_set(c,gv) ((c)->cop_filegv = gv)
+# define CopFILE_set(c,pv) ((c)->cop_filegv = gv_fetchfile(pv))
+# define CopFILESV(c) (CopFILEGV(c) ? GvSV(CopFILEGV(c)) : Nullsv)
+# define CopFILEAV(c) (CopFILEGV(c) ? GvAV(CopFILEGV(c)) : Nullav)
+# define CopFILE(c) (CopFILESV(c) ? SvPVX(CopFILESV(c)) : Nullch)
+# define CopSTASH(c) ((c)->cop_stash)
+# define CopSTASH_set(c,hv) ((c)->cop_stash = hv)
+# define CopSTASHPV(c) (CopSTASH(c) ? HvNAME(CopSTASH(c)) : Nullch)
+# define CopSTASHPV_set(c,pv) CopSTASH_set(c, gv_stashpv(pv,GV_ADD))
+# define CopSTASH_eq(c,hv) (CopSTASH(c) == hv)
+#endif /* USE_ITHREADS */
+
+#define CopSTASH_ne(c,hv) (!CopSTASH_eq(c,hv))
+#define CopLINE(c) ((c)->cop_line)
+#define CopLINE_inc(c) (++CopLINE(c))
+#define CopLINE_dec(c) (--CopLINE(c))
+#define CopLINE_set(c,l) (CopLINE(c) = (l))
+
/*
* Here we have some enormously heavy (or at least ponderous) wizardry.
*/
(void)SvREFCNT_inc(cx->blk_sub.dfoutgv)
#ifdef USE_THREADS
-#define POPSAVEARRAY() NOOP
+# define POP_SAVEARRAY() NOOP
#else
-#define POPSAVEARRAY() \
+# define POP_SAVEARRAY() \
STMT_START { \
SvREFCNT_dec(GvAV(PL_defgv)); \
GvAV(PL_defgv) = cx->blk_sub.savearray; \
} STMT_END
#endif /* USE_THREADS */
+#ifdef USE_ITHREADS
+ /* junk in @_ spells trouble when cloning CVs, so don't leave any */
+# define CLEAR_ARGARRAY() av_clear(cx->blk_sub.argarray)
+#else
+# define CLEAR_ARGARRAY() NOOP
+#endif /* USE_ITHREADS */
+
+
#define POPSUB(cx,sv) \
STMT_START { \
if (cx->blk_sub.hasargs) { \
- POPSAVEARRAY(); \
+ POP_SAVEARRAY(); \
/* abandon @_ if it got reified */ \
if (AvREAL(cx->blk_sub.argarray)) { \
SSize_t fill = AvFILLp(cx->blk_sub.argarray); \
AvFLAGS(cx->blk_sub.argarray) = AVf_REIFY; \
PL_curpad[0] = (SV*)cx->blk_sub.argarray; \
} \
+ else { \
+ CLEAR_ARGARRAY(); \
+ } \
} \
sv = (SV*)cx->blk_sub.cv; \
if (sv && (CvDEPTH((CV*)sv) = cx->blk_sub.olddepth)) \
struct block_eval {
I32 old_in_eval;
I32 old_op_type;
- char * old_name;
+ SV * old_namesv;
OP * old_eval_root;
SV * cur_text;
};
#define PUSHEVAL(cx,n,fgv) \
+ STMT_START { \
cx->blk_eval.old_in_eval = PL_in_eval; \
cx->blk_eval.old_op_type = PL_op->op_type; \
- cx->blk_eval.old_name = n; \
+ cx->blk_eval.old_namesv = (n ? newSVpv(n,0) : Nullsv); \
cx->blk_eval.old_eval_root = PL_eval_root; \
- cx->blk_eval.cur_text = PL_linestr;
+ cx->blk_eval.cur_text = PL_linestr; \
+ } STMT_END
#define POPEVAL(cx) \
+ STMT_START { \
PL_in_eval = cx->blk_eval.old_in_eval; \
optype = cx->blk_eval.old_op_type; \
- PL_eval_root = cx->blk_eval.old_eval_root;
+ PL_eval_root = cx->blk_eval.old_eval_root; \
+ if (cx->blk_eval.old_namesv) \
+ sv_2mortal(cx->blk_eval.old_namesv); \
+ } STMT_END
/* loop context */
struct block_loop {
OP * redo_op;
OP * next_op;
OP * last_op;
+#ifdef USE_ITHREADS
+ void * iterdata;
+ SV ** oldcurpad;
+#else
SV ** itervar;
+#endif
SV * itersave;
SV * iterlval;
AV * iterary;
IV itermax;
};
-#define PUSHLOOP(cx, ivar, s) \
+#ifdef USE_ITHREADS
+# define CxITERVAR(c) \
+ ((c)->blk_loop.iterdata \
+ ? (CxPADLOOP(cx) \
+ ? &((c)->blk_loop.oldcurpad)[(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; \
+ if ((cx->blk_loop.iterdata = (idata))) \
+ cx->blk_loop.itersave = SvREFCNT_inc(*CxITERVAR(cx));
+#else
+# define CxITERVAR(c) ((c)->blk_loop.itervar)
+# define CX_ITERDATA_SET(cx,ivar) \
+ if ((cx->blk_loop.itervar = (SV**)(ivar))) \
+ cx->blk_loop.itersave = SvREFCNT_inc(*CxITERVAR(cx));
+#endif
+
+#define PUSHLOOP(cx, dat, s) \
cx->blk_loop.label = PL_curcop->cop_label; \
cx->blk_loop.resetsp = s - PL_stack_base; \
cx->blk_loop.redo_op = cLOOP->op_redoop; \
cx->blk_loop.next_op = cLOOP->op_nextop; \
cx->blk_loop.last_op = cLOOP->op_lastop; \
- if (cx->blk_loop.itervar = (ivar)) \
- cx->blk_loop.itersave = SvREFCNT_inc(*cx->blk_loop.itervar);\
cx->blk_loop.iterlval = Nullsv; \
cx->blk_loop.iterary = Nullav; \
- cx->blk_loop.iterix = -1;
+ cx->blk_loop.iterix = -1; \
+ CX_ITERDATA_SET(cx,dat);
#define POPLOOP(cx) \
SvREFCNT_dec(cx->blk_loop.iterlval); \
- if (cx->blk_loop.itervar) { \
- sv_2mortal(*(cx->blk_loop.itervar)); \
- *(cx->blk_loop.itervar) = cx->blk_loop.itersave; \
+ if (CxITERVAR(cx)) { \
+ SV **s_v_p = CxITERVAR(cx); \
+ sv_2mortal(*s_v_p); \
+ *s_v_p = cx->blk_loop.itersave; \
} \
if (cx->blk_loop.iterary && cx->blk_loop.iterary != PL_curstack)\
SvREFCNT_dec(cx->blk_loop.iterary);
#define CXt_LOOP 3
#define CXt_SUBST 4
#define CXt_BLOCK 5
+#define CXt_FORMAT 6
/* private flags for CXt_EVAL */
#define CXp_REAL 0x00000100 /* truly eval'', not a lookalike */
+#define CXp_TRYBLOCK 0x00000200 /* eval{}, not eval'' or similar */
+
+#ifdef USE_ITHREADS
+/* private flags for CXt_LOOP */
+# define CXp_PADVAR 0x00000100 /* itervar lives on pad, iterdata
+ has pad offset; if not set,
+ iterdata holds GV* */
+# define CxPADLOOP(c) (((c)->cx_type & (CXt_LOOP|CXp_PADVAR)) \
+ == (CXt_LOOP|CXp_PADVAR))
+#endif
#define CxTYPE(c) ((c)->cx_type & CXTYPEMASK)
-#define CxREALEVAL(c) (((c)->cx_type & (CXt_EVAL|CXp_REAL)) == (CXt_EVAL|CXp_REAL))
+#define CxREALEVAL(c) (((c)->cx_type & (CXt_EVAL|CXp_REAL)) \
+ == (CXt_EVAL|CXp_REAL))
+#define CxTRYBLOCK(c) (((c)->cx_type & (CXt_EVAL|CXp_TRYBLOCK)) \
+ == (CXt_EVAL|CXp_TRYBLOCK))
#define CXINC (cxstack_ix < cxstack_max ? ++cxstack_ix : (cxstack_ix = cxinc()))
/* "gimme" values */
+
+/*
+=for apidoc AmU||G_SCALAR
+Used to indicate scalar context. See C<GIMME_V>, C<GIMME>, and
+L<perlcall>.
+
+=for apidoc AmU||G_ARRAY
+Used to indicate array context. See C<GIMME_V>, C<GIMME> and
+L<perlcall>.
+
+=for apidoc AmU||G_VOID
+Used to indicate void context. See C<GIMME_V> and L<perlcall>.
+
+=for apidoc AmU||G_DISCARD
+Indicates that arguments returned from a callback should be discarded. See
+L<perlcall>.
+
+=for apidoc AmU||G_EVAL
+
+Used to force a Perl C<eval> wrapper around a callback. See
+L<perlcall>.
+
+=for apidoc AmU||G_NOARGS
+
+Indicates that no arguments are being sent to a callback. See
+L<perlcall>.
+
+=cut
+*/
+
#define G_SCALAR 0
#define G_ARRAY 1
#define G_VOID 128 /* skip this bit when adding flags below */
#define G_NOARGS 8 /* Don't construct a @_ array. */
#define G_KEEPERR 16 /* Append errors to $@, don't overwrite it */
#define G_NODEBUG 32 /* Disable debugging at toplevel. */
-#define G_NOCATCH 64 /* Don't do CATCH_SET() */
/* flag bits for PL_in_eval */
#define EVAL_NULL 0 /* not in an eval */
I32 si_type; /* type of runlevel */
struct stackinfo * si_prev;
struct stackinfo * si_next;
- I32 * si_markbase; /* where markstack begins for us.
+ I32 si_markoff; /* offset where markstack begins for us.
* currently used only with DEBUGGING,
* but not #ifdef-ed for bincompat */
};
#define cxstack_max (PL_curstackinfo->si_cxmax)
#ifdef DEBUGGING
-# define SET_MARKBASE PL_curstackinfo->si_markbase = PL_markstack_ptr
+# define SET_MARK_OFFSET \
+ PL_curstackinfo->si_markoff = PL_markstack_ptr - PL_markstack
#else
-# define SET_MARKBASE NOOP
+# define SET_MARK_OFFSET NOOP
#endif
#define PUSHSTACKi(type) \
AvFILLp(next->si_stack) = 0; \
SWITCHSTACK(PL_curstack,next->si_stack); \
PL_curstackinfo = next; \
- SET_MARKBASE; \
+ SET_MARK_OFFSET; \
} STMT_END
#define PUSHSTACK PUSHSTACKi(PERLSI_UNKNOWN)
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