X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=cv.h;h=cb47c0ff076199bcf1ccf274332c990bfc9252c5;hb=9b488eb89e353c3569ec0fe5076be8c2a5f47436;hp=b768f635e3f206a58496c2bca0735d613e3c9df8;hpb=74efa5a2169712a879c65f86ca8d53d55975e1a2;p=p5sagit%2Fp5-mst-13.2.git diff --git a/cv.h b/cv.h index b768f63..cb47c0f 100644 --- a/cv.h +++ b/cv.h @@ -1,40 +1,51 @@ /* cv.h * - * Copyright (c) 1991-1997, Larry Wall + * Copyright (c) 1991-2002, 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. * */ -/* This structure much match the beginning of XPVFM */ +/* This structure much match XPVCV in B/C.pm and the beginning of XPVFM + * in sv.h */ struct xpvcv { char * xpv_pv; /* pointer to malloced string */ STRLEN xpv_cur; /* length of xp_pv as a C string */ STRLEN xpv_len; /* allocated size */ IV xof_off; /* integer value */ - double xnv_nv; /* numeric value, if any */ + NV xnv_nv; /* numeric value, if any */ MAGIC* xmg_magic; /* magic for scalar array */ HV* xmg_stash; /* class package */ HV * xcv_stash; OP * xcv_start; OP * xcv_root; - void (*xcv_xsub) _((CV*)); + void (*xcv_xsub) (pTHX_ CV*); ANY xcv_xsubany; GV * xcv_gv; - GV * xcv_filegv; - long xcv_depth; /* >= 2 indicates recursive call */ - AV * xcv_padlist; + char * xcv_file; + long xcv_depth; /* >= 2 indicates recursive call */ + PADLIST * xcv_padlist; CV * xcv_outside; -#ifdef USE_THREADS - perl_mutex *xcv_mutexp; - struct perl_thread *xcv_owner; /* current owner thread */ -#endif /* USE_THREADS */ cv_flags_t xcv_flags; }; +/* +=head1 Handy Values + +=for apidoc AmU||Nullcv +Null CV pointer. + +=head1 CV Manipulation Functions + +=for apidoc Am|HV*|CvSTASH|CV* cv +Returns the stash of the CV. + +=cut +*/ + #define Nullcv Null(CV*) #define CvSTASH(sv) ((XPVCV*)SvANY(sv))->xcv_stash @@ -43,14 +54,16 @@ struct xpvcv { #define CvXSUB(sv) ((XPVCV*)SvANY(sv))->xcv_xsub #define CvXSUBANY(sv) ((XPVCV*)SvANY(sv))->xcv_xsubany #define CvGV(sv) ((XPVCV*)SvANY(sv))->xcv_gv -#define CvFILEGV(sv) ((XPVCV*)SvANY(sv))->xcv_filegv +#define CvFILE(sv) ((XPVCV*)SvANY(sv))->xcv_file +#ifdef USE_ITHREADS +# define CvFILE_set_from_cop(sv, cop) (CvFILE(sv) = savepv(CopFILE(cop))) +#else +# define CvFILE_set_from_cop(sv, cop) (CvFILE(sv) = CopFILE(cop)) +#endif +#define CvFILEGV(sv) (gv_fetchfile(CvFILE(sv))) #define CvDEPTH(sv) ((XPVCV*)SvANY(sv))->xcv_depth #define CvPADLIST(sv) ((XPVCV*)SvANY(sv))->xcv_padlist #define CvOUTSIDE(sv) ((XPVCV*)SvANY(sv))->xcv_outside -#ifdef USE_THREADS -#define CvMUTEXP(sv) ((XPVCV*)SvANY(sv))->xcv_mutexp -#define CvOWNER(sv) ((XPVCV*)SvANY(sv))->xcv_owner -#endif /* USE_THREADS */ #define CvFLAGS(sv) ((XPVCV*)SvANY(sv))->xcv_flags #define CVf_CLONE 0x0001 /* anon CV uses external lexicals */ @@ -61,8 +74,11 @@ struct xpvcv { #define CVf_NODEBUG 0x0020 /* no DB::sub indirection for this CV (esp. useful for special XSUBs) */ #define CVf_METHOD 0x0040 /* CV is explicitly marked as a method */ -#define CVf_LOCKED 0x0080 /* CV locks itself, package or first arg on entry */ -#define CVf_PACKAGE 0x0100 /* CV locks package on entry */ +#define CVf_LOCKED 0x0080 /* CV locks itself or first arg on entry */ +#define CVf_LVALUE 0x0100 /* CV return value can be used as lvalue */ +#define CVf_CONST 0x0200 /* inlinable sub */ +/* This symbol for optimised communication between toke.c and op.c: */ +#define CVf_BUILTIN_ATTRS (CVf_METHOD|CVf_LOCKED|CVf_LVALUE) #define CvCLONE(cv) (CvFLAGS(cv) & CVf_CLONE) #define CvCLONE_on(cv) (CvFLAGS(cv) |= CVf_CLONE) @@ -76,9 +92,11 @@ struct xpvcv { #define CvANON_on(cv) (CvFLAGS(cv) |= CVf_ANON) #define CvANON_off(cv) (CvFLAGS(cv) &= ~CVf_ANON) +#ifdef PERL_XSUB_OLDSTYLE #define CvOLDSTYLE(cv) (CvFLAGS(cv) & CVf_OLDSTYLE) #define CvOLDSTYLE_on(cv) (CvFLAGS(cv) |= CVf_OLDSTYLE) #define CvOLDSTYLE_off(cv) (CvFLAGS(cv) &= ~CVf_OLDSTYLE) +#endif #define CvUNIQUE(cv) (CvFLAGS(cv) & CVf_UNIQUE) #define CvUNIQUE_on(cv) (CvFLAGS(cv) |= CVf_UNIQUE) @@ -96,7 +114,20 @@ struct xpvcv { #define CvLOCKED_on(cv) (CvFLAGS(cv) |= CVf_LOCKED) #define CvLOCKED_off(cv) (CvFLAGS(cv) &= ~CVf_LOCKED) -#define CvPACKAGE(cv) (CvFLAGS(cv) & CVf_PACKAGE) -#define CvPACKAGE_on(cv) (CvFLAGS(cv) |= CVf_PACKAGE) -#define CvPACKAGE_off(cv) (CvFLAGS(cv) &= ~CVf_PACKAGE) +#define CvLVALUE(cv) (CvFLAGS(cv) & CVf_LVALUE) +#define CvLVALUE_on(cv) (CvFLAGS(cv) |= CVf_LVALUE) +#define CvLVALUE_off(cv) (CvFLAGS(cv) &= ~CVf_LVALUE) + +#define CvEVAL(cv) (CvUNIQUE(cv) && !SvFAKE(cv)) +#define CvEVAL_on(cv) (CvUNIQUE_on(cv),SvFAKE_off(cv)) +#define CvEVAL_off(cv) CvUNIQUE_off(cv) + +/* BEGIN|CHECK|INIT|END */ +#define CvSPECIAL(cv) (CvUNIQUE(cv) && SvFAKE(cv)) +#define CvSPECIAL_on(cv) (CvUNIQUE_on(cv),SvFAKE_on(cv)) +#define CvSPECIAL_off(cv) (CvUNIQUE_off(cv),SvFAKE_off(cv)) + +#define CvCONST(cv) (CvFLAGS(cv) & CVf_CONST) +#define CvCONST_on(cv) (CvFLAGS(cv) |= CVf_CONST) +#define CvCONST_off(cv) (CvFLAGS(cv) &= ~CVf_CONST)