X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/1404b48744cfa915e3f54775feb4e9b6c10f3b91..db18005b26986d1d422fcb53989eece313134db5:/gv.h diff --git a/gv.h b/gv.h index 7e412e5..488f2cc 100644 --- a/gv.h +++ b/gv.h @@ -12,13 +12,14 @@ struct gp { SV * gp_sv; /* scalar value */ struct io * gp_io; /* filehandle value */ CV * gp_cv; /* subroutine value */ - U32 gp_cvgen; /* generational validity of cached gv_cv */ + U32 gp_cvgen; /* generational validity of cached gp_cv */ U32 gp_refcnt; /* how many globs point to this? */ HV * gp_hv; /* hash value */ AV * gp_av; /* array value */ CV * gp_form; /* format value */ GV * gp_egv; /* effective gv, if *glob */ - line_t gp_line; /* line first declared at (for -w) */ + PERL_BITFIELD32 gp_line:31; /* line first declared at (for -w) */ + PERL_BITFIELD32 gp_flags:1; HEK * gp_file_hek; /* file first declared in (for -w) */ }; @@ -27,10 +28,15 @@ struct gp { #if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__INTEL_COMPILER) # define GvGP(gv) \ - (*({GV *const _gvgp = (GV *) (gv); \ + (0+(*({GV *const _gvgp = (GV *) (gv); \ assert(SvTYPE(_gvgp) == SVt_PVGV || SvTYPE(_gvgp) == SVt_PVLV); \ assert(isGV_with_GP(_gvgp)); \ - &((_gvgp)->sv_u.svu_gp);})) + &((_gvgp)->sv_u.svu_gp);}))) +# define GvGP_set(gv,gp) \ + {GV *const _gvgp = (GV *) (gv); \ + assert(SvTYPE(_gvgp) == SVt_PVGV || SvTYPE(_gvgp) == SVt_PVLV); \ + assert(isGV_with_GP(_gvgp)); \ + (_gvgp)->sv_u.svu_gp = (gp); } # define GvFLAGS(gv) \ (*({GV *const _gvflags = (GV *) (gv); \ assert(SvTYPE(_gvflags) == SVt_PVGV || SvTYPE(_gvflags) == SVt_PVLV); \ @@ -46,28 +52,25 @@ struct gp { (*({ GV * const _gvname_hek = (GV *) (gv); \ assert(isGV_with_GP(_gvname_hek)); \ assert(SvTYPE(_gvname_hek) == SVt_PVGV || SvTYPE(_gvname_hek) >= SVt_PVLV); \ - assert(!SvVALID(_gvname_hek)); \ &(GvXPVGV(_gvname_hek)->xiv_u.xivu_namehek); \ })) # define GvNAME_get(gv) ({ assert(GvNAME_HEK(gv)); (char *)HEK_KEY(GvNAME_HEK(gv)); }) # define GvNAMELEN_get(gv) ({ assert(GvNAME_HEK(gv)); HEK_LEN(GvNAME_HEK(gv)); }) +# define GvNAMEUTF8(gv) ({ assert(GvNAME_HEK(gv)); HEK_UTF8(GvNAME_HEK(gv)); }) #else -# define GvGP(gv) ((gv)->sv_u.svu_gp) +# define GvGP(gv) (0+(gv)->sv_u.svu_gp) +# define GvGP_set(gv,gp) ((gv)->sv_u.svu_gp = (gp)) # define GvFLAGS(gv) (GvXPVGV(gv)->xpv_cur) # define GvSTASH(gv) (GvXPVGV(gv)->xnv_u.xgv_stash) # define GvNAME_HEK(gv) (GvXPVGV(gv)->xiv_u.xivu_namehek) # define GvNAME_get(gv) HEK_KEY(GvNAME_HEK(gv)) # define GvNAMELEN_get(gv) HEK_LEN(GvNAME_HEK(gv)) +# define GvNAMEUTF8(gv) HEK_UTF8(GvNAME_HEK(gv)) #endif #define GvNAME(gv) GvNAME_get(gv) #define GvNAMELEN(gv) GvNAMELEN_get(gv) -#define GvASSIGN_GENERATION(gv) (0 + ((XPV*) SvANY(gv))->xpv_len) -#define GvASSIGN_GENERATION_set(gv,val) \ - STMT_START { assert(SvTYPE(gv) == SVt_PVGV); \ - (((XPV*) SvANY(gv))->xpv_len = (val)); } STMT_END - /* =head1 GV Functions @@ -75,6 +78,18 @@ struct gp { Return the SV from the GV. +=for apidoc Am|AV*|GvAV|GV* gv + +Return the AV from the GV. + +=for apidoc Am|HV*|GvHV|GV* gv + +Return the HV from the GV. + +=for apidoc Am|CV*|GvCV|GV* gv + +Return the CV from the GV. + =cut */ @@ -88,7 +103,17 @@ Return the SV from the GV. #endif #define GvREFCNT(gv) (GvGP(gv)->gp_refcnt) -#define GvIO(gv) ((gv) && SvTYPE((const SV*)gv) == SVt_PVGV && GvGP(gv) ? GvIOp(gv) : NULL) +#define GvIO(gv) \ + ( \ + (gv) \ + && ( \ + SvTYPE((const SV*)(gv)) == SVt_PVGV \ + || SvTYPE((const SV*)(gv)) == SVt_PVLV \ + ) \ + && GvGP(gv) \ + ? GvIOp(gv) \ + : NULL \ + ) #define GvIOp(gv) (GvGP(gv)->gp_io) #define GvIOn(gv) (GvIO(gv) ? GvIOp(gv) : GvIOp(gv_IOadd(gv))) @@ -104,24 +129,35 @@ Return the SV from the GV. GvGP(gv)->gp_hv : \ GvGP(gv_HVadd(gv))->gp_hv) -#define GvCV(gv) (GvGP(gv)->gp_cv) +#define GvCV(gv) (0+GvGP(gv)->gp_cv) +#define GvCV_set(gv,cv) (GvGP(gv)->gp_cv = (cv)) #define GvCVGEN(gv) (GvGP(gv)->gp_cvgen) #define GvCVu(gv) (GvGP(gv)->gp_cvgen ? NULL : GvGP(gv)->gp_cv) +#define GvGPFLAGS(gv) (GvGP(gv)->gp_flags) + #define GvLINE(gv) (GvGP(gv)->gp_line) #define GvFILE_HEK(gv) (GvGP(gv)->gp_file_hek) -#define GvFILE(gv) (GvFILE_HEK(gv) ? HEK_KEY(GvFILE_HEK(gv)) : NULL) -#define GvFILEGV(gv) (gv_fetchfile(GvFILE(gv))) +#define GvFILEx(gv) HEK_KEY(GvFILE_HEK(gv)) +#define GvFILE(gv) (GvFILE_HEK(gv) ? GvFILEx(gv) : NULL) +#define GvFILEGV(gv) (GvFILE_HEK(gv) ? gv_fetchfile(GvFILEx(gv)) : NULL) #define GvEGV(gv) (GvGP(gv)->gp_egv) #define GvEGVx(gv) (isGV_with_GP(gv) ? GvEGV(gv) : NULL) #define GvENAME(gv) GvNAME(GvEGV(gv) ? GvEGV(gv) : gv) +#define GvENAMELEN(gv) GvNAMELEN(GvEGV(gv) ? GvEGV(gv) : gv) +#define GvENAMEUTF8(gv) GvNAMEUTF8(GvEGV(gv) ? GvEGV(gv) : gv) +#define GvENAME_HEK(gv) GvNAME_HEK(GvEGV(gv) ? GvEGV(gv) : gv) #define GvESTASH(gv) GvSTASH(GvEGV(gv) ? GvEGV(gv) : gv) +/* GVf_INTRO is one-shot flag which indicates that the next assignment + of a reference to the glob is to be localised; it distinguishes + 'local *g = $ref' from '*g = $ref'. +*/ #define GVf_INTRO 0x01 #define GVf_MULTI 0x02 #define GVf_ASSUMECV 0x04 -#define GVf_IN_PAD 0x08 +/* UNUSED 0x08 */ #define GVf_IMPORTED 0xF0 #define GVf_IMPORTED_SV 0x10 #define GVf_IMPORTED_AV 0x20 @@ -160,22 +196,21 @@ Return the SV from the GV. #define GvIMPORTED_CV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_CV) #define GvIMPORTED_CV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_CV) -#define GvIN_PAD(gv) (GvFLAGS(gv) & GVf_IN_PAD) -#define GvIN_PAD_on(gv) (GvFLAGS(gv) |= GVf_IN_PAD) -#define GvIN_PAD_off(gv) (GvFLAGS(gv) &= ~GVf_IN_PAD) - #ifndef PERL_CORE +# define GvIN_PAD(gv) 0 +# define GvIN_PAD_on(gv) NOOP +# define GvIN_PAD_off(gv) NOOP # define Nullgv Null(GV*) #endif -#define DM_UID 0x003 -#define DM_RUID 0x001 -#define DM_EUID 0x002 -#define DM_ARRAY 0x004 -#define DM_GID 0x030 -#define DM_RGID 0x010 -#define DM_EGID 0x020 -#define DM_DELAY 0x100 +#define DM_RUID 0x001 +#define DM_EUID 0x002 +#define DM_UID (DM_RUID|DM_EUID) +#define DM_ARRAY_ISA 0x004 +#define DM_RGID 0x010 +#define DM_EGID 0x020 +#define DM_GID (DM_RGID|DM_EGID) +#define DM_DELAY 0x100 /* * symbol creation flags, for use in gv_fetchpv() and get_*v() @@ -183,9 +218,10 @@ Return the SV from the GV. #define GV_ADD 0x01 /* add, if symbol not already there For gv_name_set, adding a HEK for the first time, so don't try to free what's there. */ -#define GV_ADDMULTI 0x02 /* add, pretending it has been added already */ +#define GV_ADDMULTI 0x02 /* add, pretending it has been added + already; used also by gv_init_* */ #define GV_ADDWARN 0x04 /* add, but warn if symbol wasn't already there */ -#define GV_ADDINEVAL 0x08 /* add, as though we're doing so within an eval */ + /* 0x08 UNUSED */ #define GV_NOINIT 0x10 /* add, but don't init symbol, if type != PVGV */ /* This is used by toke.c to avoid turing placeholder constants in the symbol table into full PVGVs with attached constant subroutines. */ @@ -196,17 +232,48 @@ Return the SV from the GV. package (so skip checks for :: and ') */ #define GV_AUTOLOAD 0x100 /* gv_fetchmethod_flags() should AUTOLOAD */ #define GV_CROAK 0x200 /* gv_fetchmethod_flags() should croak */ +#define GV_ADDMG 0x400 /* add if magical */ +#define GV_NO_SVGMAGIC 0x800 /* Skip get-magic on an SV argument; + used only by gv_fetchsv(_nomg) */ +#define GV_CACHE_ONLY 0x1000 /* return stash only if found in cache; + used only in flags parameter to gv_stash* family */ + +/* Flags for gv_fetchmeth_pvn and gv_autoload_pvn*/ +#define GV_SUPER 0x1000 /* SUPER::method */ + +/* Flags for gv_autoload_*/ +#define GV_AUTOLOAD_ISMETHOD 1 /* autoloading a method? */ /* SVf_UTF8 (more accurately the return value from SvUTF8) is also valid - as a flag to gv_fetch_pvn_flags, so ensure it lies outside this range. + as a flag to various gv_* functions, so ensure it lies + outside this range. */ -#define GV_NOADD_MASK (SVf_UTF8|GV_NOADD_NOINIT|GV_NOEXPAND|GV_NOTQUAL) -/* The bit flags that don't cause gv_fetchpv() to add a symbol if not found */ +#define GV_NOADD_MASK \ + (SVf_UTF8|GV_NOADD_NOINIT|GV_NOEXPAND|GV_NOTQUAL|GV_ADDMG|GV_NO_SVGMAGIC) +/* The bit flags that don't cause gv_fetchpv() to add a symbol if not + found (with the exception GV_ADDMG, which *might* cause the symbol + to be added) */ #define gv_fullname3(sv,gv,prefix) gv_fullname4(sv,gv,prefix,TRUE) #define gv_efullname3(sv,gv,prefix) gv_efullname4(sv,gv,prefix,TRUE) #define gv_fetchmethod(stash, name) gv_fetchmethod_autoload(stash, name, TRUE) +#define gv_fetchsv_nomg(n,f,t) gv_fetchsv(n,(f)|GV_NO_SVGMAGIC,t) +#define gv_init(gv,stash,name,len,multi) \ + gv_init_pvn(gv,stash,name,len,GV_ADDMULTI*!!(multi)) +#define gv_fetchmeth(stash,name,len,level) gv_fetchmeth_pvn(stash, name, len, level, 0) +#define gv_fetchmeth_autoload(stash,name,len,level) gv_fetchmeth_pvn_autoload(stash, name, len, level, 0) +#define gv_fetchmethod_flags(stash,name,flags) gv_fetchmethod_pv_flags(stash, name, flags) +#define gv_autoload4(stash, name, len, method) \ + gv_autoload_pvn(stash, name, len, !!(method)) +#define newGVgen(pack) newGVgen_flags(pack, 0) +#define gv_method_changed(gv) \ + ( \ + assert_(isGV_with_GP(gv)) \ + GvREFCNT(gv) > 1 \ + ? (void)++PL_sub_generation \ + : mro_method_changed_in(GvSTASH(gv)) \ + ) #define gv_AVadd(gv) gv_add_by_type((gv), SVt_PVAV) #define gv_HVadd(gv) gv_add_by_type((gv), SVt_PVHV) @@ -214,11 +281,5 @@ Return the SV from the GV. #define gv_SVadd(gv) gv_add_by_type((gv), SVt_NULL) /* - * Local variables: - * c-indentation-style: bsd - * c-basic-offset: 4 - * indent-tabs-mode: t - * End: - * - * ex: set ts=8 sts=4 sw=4 noet: + * ex: set ts=8 sts=4 sw=4 et: */