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/* gv.h
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
* 2000, 2001, 2002, 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 */
U32 gp_refcnt; /* how many globs point to this? */
struct io * gp_io; /* filehandle value */
CV * gp_form; /* format value */
AV * gp_av; /* array value */
HV * gp_hv; /* hash value */
GV * gp_egv; /* effective gv, if *glob */
CV * gp_cv; /* subroutine value */
U32 gp_cvgen; /* generational validity of cached gv_cv */
U32 gp_flags; /* XXX unused */
line_t gp_line; /* line first declared at (for -w) */
char * gp_file; /* file first declared in (for -w) */
};
#define GvXPVGV(gv) ((XPVGV*)SvANY(gv))
#define GvGP(gv) (GvXPVGV(gv)->xgv_gp)
#define GvNAME(gv) (GvXPVGV(gv)->xgv_name)
#define GvNAMELEN(gv) (GvXPVGV(gv)->xgv_namelen)
#define GvSTASH(gv) (GvXPVGV(gv)->xgv_stash)
#define GvFLAGS(gv) (GvXPVGV(gv)->xgv_flags)
/*
=head1 GV Functions
=for apidoc Am|SV*|GvSV|GV* gv
Return the SV from the GV.
=cut
*/
#define GvSV(gv) (GvGP(gv)->gp_sv)
#define GvREFCNT(gv) (GvGP(gv)->gp_refcnt)
#define GvIO(gv) ((gv) && SvTYPE((SV*)gv) == SVt_PVGV && GvGP(gv) ? GvIOp(gv) : 0)
#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)
/* This macro is deprecated. Do not use! */
#define GvREFCNT_inc(gv) ((GV*)SvREFCNT_inc(gv)) /* DO NOT USE */
#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) (GvGP(gv)->gp_cv)
#define GvCVGEN(gv) (GvGP(gv)->gp_cvgen)
#define GvCVu(gv) (GvGP(gv)->gp_cvgen ? Nullcv : GvGP(gv)->gp_cv)
#define GvGPFLAGS(gv) (GvGP(gv)->gp_flags)
#define GvLINE(gv) (GvGP(gv)->gp_line)
#define GvFILE(gv) (GvGP(gv)->gp_file)
#define GvFILEGV(gv) (gv_fetchfile(GvFILE(gv)))
#define GvEGV(gv) (GvGP(gv)->gp_egv)
#define GvENAME(gv) GvNAME(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)
/* XXX: all GvFLAGS options are used, borrowing GvGPFLAGS for the moment */
#define GVf_UNIQUE 0x0001
#define GvUNIQUE(gv) (GvGP(gv) && (GvGPFLAGS(gv) & GVf_UNIQUE))
#define GvUNIQUE_on(gv) (GvGPFLAGS(gv) |= GVf_UNIQUE)
#define GvUNIQUE_off(gv) (GvGPFLAGS(gv) &= ~GVf_UNIQUE)
#ifdef USE_ITHREADS
#define GV_UNIQUE_CHECK
#else
#undef GV_UNIQUE_CHECK
#endif
#define Nullgv Null(GV*)
#define DM_UID 0x003
#define DM_RUID 0x001
#define DM_EUID 0x002
#define DM_GID 0x030
#define DM_RGID 0x010
#define DM_EGID 0x020
#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 */
#define GV_ADDMULTI 0x02 /* add, pretending it has been added already */
#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 */
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