X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/0e06870bf080a38cda51c06c6612359afc2334e1..1d2654e1d58ad544e6568f317af5402a9dbaff80:/cop.h diff --git a/cop.h b/cop.h index 5c3bafa..04eb7c0 100644 --- a/cop.h +++ b/cop.h @@ -1,10 +1,16 @@ /* cop.h * - * Copyright (c) 1991-2001, Larry Wall + * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, + * 2000, 2001, 2002, 2003, 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 { @@ -30,13 +36,25 @@ struct cop { # 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)) + + #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) # 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 = ((pv) ? savepv(pv) : Nullch)) + + #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) # define CopSTASH_set(c,hv) CopSTASHPV_set(c, (hv) ? HvNAME(hv) : Nullch) @@ -44,6 +62,17 @@ struct cop { && (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 #else # define CopFILEGV(c) ((c)->cop_filegv) # define CopFILEGV_set(c,gv) ((c)->cop_filegv = (GV*)SvREFCNT_inc(gv)) @@ -57,6 +86,9 @@ struct cop { /* 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) = Nullgv)) + #endif /* USE_ITHREADS */ #define CopSTASH_ne(c,hv) (!CopSTASH_eq(c,hv)) @@ -65,6 +97,13 @@ struct cop { #define CopLINE_dec(c) (--CopLINE(c)) #define CopLINE_set(c,l) (CopLINE(c) = (l)) +/* OutCopFILE() is CopFILE for output (caller, die, warn, etc.) */ +#ifdef MACOS_TRADITIONAL +# define OutCopFILE(c) MacPerl_MPWFileName(CopFILE(c)) +#else +# define OutCopFILE(c) CopFILE(c) +#endif + /* * Here we have some enormously heavy (or at least ponderous) wizardry. */ @@ -74,23 +113,31 @@ struct block_sub { CV * cv; GV * gv; GV * dfoutgv; -#ifndef USE_THREADS AV * savearray; -#endif /* USE_THREADS */ 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 */ +#define PUSHSUB_BASE(cx) \ cx->blk_sub.cv = cv; \ cx->blk_sub.olddepth = CvDEPTH(cv); \ - cx->blk_sub.hasargs = hasargs; \ + cx->blk_sub.hasargs = hasargs; + +#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; \ @@ -98,15 +145,11 @@ struct block_sub { cx->blk_sub.dfoutgv = PL_defoutgv; \ (void)SvREFCNT_inc(cx->blk_sub.dfoutgv) -#ifdef USE_THREADS -# 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_THREADS */ /* junk in @_ spells trouble when cloning CVs and in pp_caller(), so don't * leave any (a fast av_clear(ary), basically) */ @@ -128,7 +171,7 @@ struct block_sub { 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); \ @@ -156,6 +199,7 @@ struct block_eval { SV * old_namesv; OP * old_eval_root; SV * cur_text; + CV * cv; }; #define PUSHEVAL(cx,n,fgv) \ @@ -165,6 +209,7 @@ struct block_eval { 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.cv = Nullcv; /* set by doeval(), as applicable */ \ } STMT_END #define POPEVAL(cx) \ @@ -185,7 +230,7 @@ struct block_loop { OP * last_op; #ifdef USE_ITHREADS void * iterdata; - SV ** oldcurpad; + PAD *oldcomppad; #else SV ** itervar; #endif @@ -200,18 +245,23 @@ struct block_loop { # define CxITERVAR(c) \ ((c)->blk_loop.iterdata \ ? (CxPADLOOP(cx) \ - ? &((c)->blk_loop.oldcurpad)[(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)); + cx->blk_loop.itersave = SvREFCNT_inc(*CxITERVAR(cx)); \ + else \ + cx->blk_loop.itersave = Nullsv; #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)); + cx->blk_loop.itersave = SvREFCNT_inc(*CxITERVAR(cx)); \ + else \ + cx->blk_loop.itersave = Nullsv; #endif #define PUSHLOOP(cx, dat, s) \ @@ -271,7 +321,7 @@ struct block { cx->blk_oldscopesp = PL_scopestack_ix, \ cx->blk_oldretsp = PL_retstack_ix, \ cx->blk_oldpm = PL_curpm, \ - cx->blk_gimme = gimme; \ + cx->blk_gimme = (U8)gimme; \ DEBUG_l( PerlIO_printf(Perl_debug_log, "Entering block %ld, type %s\n", \ (long)cxstack_ix, PL_block_type[CxTYPE(cx)]); ) @@ -284,6 +334,7 @@ struct block { 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)]); ) @@ -293,7 +344,8 @@ struct block { 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 { @@ -386,7 +438,9 @@ struct context { #define CXINC (cxstack_ix < cxstack_max ? ++cxstack_ix : (cxstack_ix = cxinc())) -/* "gimme" values */ +/* +=head1 "Gimme" Values +*/ /* =for apidoc AmU||G_SCALAR @@ -500,7 +554,7 @@ typedef struct stackinfo PERL_SI; * PUTBACK/SPAGAIN to flush/refresh any local SP that may be active */ #define POPSTACK \ STMT_START { \ - djSP; \ + dSP; \ PERL_SI *prev = PL_curstackinfo->si_prev; \ if (!prev) { \ PerlIO_printf(Perl_error_log, "panic: POPSTACK\n"); \