X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/11faa288e292c27cb2ddc4ccdc483b523d26ce19..f688e3acac1195ff1fc1037245fc7d642c63538d:/cop.h diff --git a/cop.h b/cop.h index d5f7f42..8d8126b 100644 --- a/cop.h +++ b/cop.h @@ -1,6 +1,6 @@ /* cop.h * - * Copyright (c) 1991-1999, Larry Wall + * Copyright (c) 1991-2001, 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. @@ -21,6 +21,7 @@ struct cop { I32 cop_arybase; /* array base this line was compiled with */ line_t cop_line; /* line # of this command */ SV * cop_warnings; /* lexical warnings bitmask */ + SV * cop_io; /* lexical IO defaults */ }; #define Nullcop Null(COP*) @@ -29,29 +30,36 @@ 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)) /* XXX */ +# define CopFILE_set(c,pv) ((c)->cop_file = savepv(pv)) # 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 CopSTASHPV_set(c,pv) ((c)->cop_stashpv = ((pv) ? savepv(pv) : Nullch)) # define CopSTASH(c) (CopSTASHPV(c) \ ? gv_stashpv(CopSTASHPV(c),GV_ADD) : Nullhv) -# define CopSTASH_set(c,hv) CopSTASHPV_set(c, HvNAME(hv)) +# define CopSTASH_set(c,hv) CopSTASHPV_set(c, (hv) ? HvNAME(hv) : Nullch) +# 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 CopFILEGV_set(c,gv) ((c)->cop_filegv = (GV*)SvREFCNT_inc(gv)) +# define CopFILE_set(c,pv) CopFILEGV_set((c), 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 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)) + /* 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)) #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)) @@ -73,6 +81,7 @@ struct block_sub { U16 olddepth; U8 hasargs; U8 lval; /* XXX merge lval and hasargs? */ + SV ** oldcurpad; }; #define PUSHSUB(cx) \ @@ -90,19 +99,28 @@ struct block_sub { (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 */ +/* junk in @_ spells trouble when cloning CVs and in pp_caller(), so don't + * leave any (a fast av_clear(ary), basically) */ +#define CLEAR_ARGARRAY(ary) \ + STMT_START { \ + AvMAX(ary) += AvARRAY(ary) - AvALLOC(ary); \ + SvPVX(ary) = (char*)AvALLOC(ary); \ + AvFILLp(ary) = -1; \ + } STMT_END + #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); \ @@ -110,7 +128,10 @@ struct block_sub { cx->blk_sub.argarray = newAV(); \ av_extend(cx->blk_sub.argarray, fill); \ AvFLAGS(cx->blk_sub.argarray) = AVf_REIFY; \ - PL_curpad[0] = (SV*)cx->blk_sub.argarray; \ + cx->blk_sub.oldcurpad[0] = (SV*)cx->blk_sub.argarray; \ + } \ + else { \ + CLEAR_ARGARRAY(cx->blk_sub.argarray); \ } \ } \ sv = (SV*)cx->blk_sub.cv; \ @@ -132,22 +153,30 @@ struct block_sub { struct block_eval { I32 old_in_eval; I32 old_op_type; - char * old_name; + SV * old_namesv; OP * old_eval_root; SV * cur_text; + CV * cv; }; #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; \ + cx->blk_eval.cv = Nullcv; /* set by doeval(), as applicable */ \ + } 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 { @@ -156,7 +185,12 @@ 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; @@ -164,23 +198,41 @@ struct block_loop { 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); @@ -313,16 +365,60 @@ struct context { #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, C, and +L. + +=for apidoc AmU||G_ARRAY +Used to indicate list context. See C, C and +L. + +=for apidoc AmU||G_VOID +Used to indicate void context. See C and L. + +=for apidoc AmU||G_DISCARD +Indicates that arguments returned from a callback should be discarded. See +L. + +=for apidoc AmU||G_EVAL + +Used to force a Perl C wrapper around a callback. See +L. + +=for apidoc AmU||G_NOARGS + +Indicates that no arguments are being sent to a callback. See +L. + +=cut +*/ + #define G_SCALAR 0 #define G_ARRAY 1 #define G_VOID 128 /* skip this bit when adding flags below */ @@ -333,12 +429,14 @@ struct context { #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_METHOD 64 /* Calling method. */ /* flag bits for PL_in_eval */ #define EVAL_NULL 0 /* not in an eval */ #define EVAL_INEVAL 1 /* some enclosing scope is 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. */ /* Support for switching (stack and block) contexts. * This ensures magic doesn't invalidate local stack and cx pointers. @@ -364,7 +462,7 @@ struct stackinfo { 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 */ }; @@ -376,9 +474,10 @@ typedef struct stackinfo PERL_SI; #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) \ @@ -394,7 +493,7 @@ typedef struct stackinfo PERL_SI; 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) @@ -403,7 +502,7 @@ 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"); \