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/* gv.h
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
* 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 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.
*
*/
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_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) */
HEK * gp_file_hek; /* file first declared in (for -w) */
};
#define GvXPVGV(gv) ((XPVGV*)SvANY(gv))
#if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__INTEL_COMPILER)
# define GvGP(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);})))
# 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); \
assert(isGV_with_GP(_gvflags)); \
&(GvXPVGV(_gvflags)->xpv_cur);}))
# define GvSTASH(gv) \
(*({ GV * const _gvstash = (GV *) (gv); \
assert(isGV_with_GP(_gvstash)); \
assert(SvTYPE(_gvstash) == SVt_PVGV || SvTYPE(_gvstash) >= SVt_PVLV); \
&(GvXPVGV(_gvstash)->xnv_u.xgv_stash); \
}))
# define GvNAME_HEK(gv) \
(*({ 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) (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
=for apidoc Am|SV*|GvSV|GV* gv
Return the SV from the GV.
=cut
*/
#define GvSV(gv) (GvGP(gv)->gp_sv)
#ifdef PERL_DONT_CREATE_GVSV
#define GvSVn(gv) (*(GvGP(gv)->gp_sv ? \
&(GvGP(gv)->gp_sv) : \
&(GvGP(gv_SVadd(gv))->gp_sv)))
#else
#define GvSVn(gv) GvSV(gv)
#endif
#define GvREFCNT(gv) (GvGP(gv)->gp_refcnt)
#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)))
#define GvFORM(gv) (GvGP(gv)->gp_form)
#define GvAV(gv) (GvGP(gv)->gp_av)
#define GvAVn(gv) (GvGP(gv)->gp_av ? \
GvGP(gv)->gp_av : \
GvGP(gv_AVadd(gv))->gp_av)
#define GvHV(gv) ((GvGP(gv))->gp_hv)
#define GvHVn(gv) (GvGP(gv)->gp_hv ? \
GvGP(gv)->gp_hv : \
GvGP(gv_HVadd(gv))->gp_hv)
#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 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 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)
#define GVf_INTRO 0x01
#define GVf_MULTI 0x02
#define GVf_ASSUMECV 0x04
#define GVf_IN_PAD 0x08
#define GVf_IMPORTED 0xF0
#define GVf_IMPORTED_SV 0x10
#define GVf_IMPORTED_AV 0x20
#define GVf_IMPORTED_HV 0x40
#define GVf_IMPORTED_CV 0x80
#define GvINTRO(gv) (GvFLAGS(gv) & GVf_INTRO)
#define GvINTRO_on(gv) (GvFLAGS(gv) |= GVf_INTRO)
#define GvINTRO_off(gv) (GvFLAGS(gv) &= ~GVf_INTRO)
#define GvMULTI(gv) (GvFLAGS(gv) & GVf_MULTI)
#define GvMULTI_on(gv) (GvFLAGS(gv) |= GVf_MULTI)
#define GvMULTI_off(gv) (GvFLAGS(gv) &= ~GVf_MULTI)
#define GvASSUMECV(gv) (GvFLAGS(gv) & GVf_ASSUMECV)
#define GvASSUMECV_on(gv) (GvFLAGS(gv) |= GVf_ASSUMECV)
#define GvASSUMECV_off(gv) (GvFLAGS(gv) &= ~GVf_ASSUMECV)
#define GvIMPORTED(gv) (GvFLAGS(gv) & GVf_IMPORTED)
#define GvIMPORTED_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED)
#define GvIMPORTED_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED)
#define GvIMPORTED_SV(gv) (GvFLAGS(gv) & GVf_IMPORTED_SV)
#define GvIMPORTED_SV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_SV)
#define GvIMPORTED_SV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_SV)
#define GvIMPORTED_AV(gv) (GvFLAGS(gv) & GVf_IMPORTED_AV)
#define GvIMPORTED_AV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_AV)
#define GvIMPORTED_AV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_AV)
#define GvIMPORTED_HV(gv) (GvFLAGS(gv) & GVf_IMPORTED_HV)
#define GvIMPORTED_HV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_HV)
#define GvIMPORTED_HV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_HV)
#define GvIMPORTED_CV(gv) (GvFLAGS(gv) & GVf_IMPORTED_CV)
#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 Nullgv Null(GV*)
#endif
#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()
*/
#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; 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 */
#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. */
#define GV_NOADD_NOINIT 0x20 /* Don't add the symbol if it's not there.
Don't init it if it is there but ! PVGV */
#define GV_NOEXPAND 0x40 /* Don't expand SvOK() entries to PVGV */
#define GV_NOTQUAL 0x80 /* A plain symbol name, not qualified with a
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) */
/* 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 various gv_* functions, so ensure it lies
outside this range.
*/
#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_AVadd(gv) gv_add_by_type((gv), SVt_PVAV)
#define gv_HVadd(gv) gv_add_by_type((gv), SVt_PVHV)
#define gv_IOadd(gv) gv_add_by_type((gv), SVt_PVIO)
#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:
*/