[p5sagit/p5-mst-13.2.git] / gv.h

/*    gv.h
 *
 *    Copyright (c) 1991-1999, 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.
 *
 */

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) */
};

#if defined(CRIPPLED_CC) && (defined(iAPX286) || defined(M_I286) || defined(I80286))
#define MICROPORT
#endif

#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)

#define GvSV(gv)	(GvGP(gv)->gp_sv)
#define GvREFCNT(gv)	(GvGP(gv)->gp_refcnt)
#define GvIO(gv)	((gv) && SvTYPE((SV*)gv) == SVt_PVGV ? 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 */

#ifdef	MICROPORT	/* Microport 2.4 hack */
AV *GvAVn();
#else
#define GvAVn(gv)	(GvGP(gv)->gp_av ? \
			 GvGP(gv)->gp_av : \
			 GvGP(gv_AVadd(gv))->gp_av)
#endif
#define GvHV(gv)	((GvGP(gv))->gp_hv)

#ifdef	MICROPORT	/* Microport 2.4 hack */
HV *GvHVn();
#else
#define GvHVn(gv)	(GvGP(gv)->gp_hv ? \
			 GvGP(gv)->gp_hv : \
			 GvGP(gv_HVadd(gv))->gp_hv)
#endif			/* Microport 2.4 hack */

#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)

#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 */
#define GV_ADDOUR	0x20	/* add "our" variable */
Commit	Line	Data
a0d0e21e	1	/* gv.h
79072805	2	*
4eb8286e	3	* Copyright (c) 1991-1999, Larry Wall
79072805	4	*
	5	* You may distribute under the terms of either the GNU General Public
	6	* License or the Artistic License, as specified in the README file.
	7	*
79072805	8	*/
	9
	10	struct gp {
	11	SV * gp_sv; /* scalar value */
	12	U32 gp_refcnt; /* how many globs point to this? */
	13	struct io * gp_io; /* filehandle value */
	14	CV * gp_form; /* format value */
	15	AV * gp_av; /* array value */
aa689395	16	HV * gp_hv; /* hash value */
79072805	17	GV * gp_egv; /* effective gv, if glob /
79072805	18	CV * gp_cv; /* subroutine value */
463ee0b2	19	U32 gp_cvgen; /* generational validity of cached gv_cv */
f4c556ac	20	U32 gp_flags; /* XXX unused */
79072805	21	line_t gp_line; /* line first declared at (for -w) */
b195d487	22	char * gp_file; /* file first declared in (for -w) */
79072805	23	};
	24
	25	#if defined(CRIPPLED_CC) && (defined(iAPX286) \|\| defined(M_I286) \|\| defined(I80286))
	26	#define MICROPORT
	27	#endif
	28
	29	#define GvXPVGV(gv) ((XPVGV*)SvANY(gv))
	30
a5f75d66	31	#define GvGP(gv) (GvXPVGV(gv)->xgv_gp)
	32	#define GvNAME(gv) (GvXPVGV(gv)->xgv_name)
	33	#define GvNAMELEN(gv) (GvXPVGV(gv)->xgv_namelen)
	34	#define GvSTASH(gv) (GvXPVGV(gv)->xgv_stash)
	35	#define GvFLAGS(gv) (GvXPVGV(gv)->xgv_flags)
	36
79072805	37	#define GvSV(gv) (GvGP(gv)->gp_sv)
79072805	38	#define GvREFCNT(gv) (GvGP(gv)->gp_refcnt)
a0d0e21e	39	#define GvIO(gv) ((gv) && SvTYPE((SV*)gv) == SVt_PVGV ? GvIOp(gv) : 0)
	40	#define GvIOp(gv) (GvGP(gv)->gp_io)
	41	#define GvIOn(gv) (GvIO(gv) ? GvIOp(gv) : GvIOp(gv_IOadd(gv)))
79072805	42
	43	#define GvFORM(gv) (GvGP(gv)->gp_form)
	44	#define GvAV(gv) (GvGP(gv)->gp_av)
44a8e56a	45
	46	/* This macro is deprecated. Do not use! */
	47	#define GvREFCNT_inc(gv) ((GV)SvREFCNT_inc(gv)) / DO NOT USE */
79072805	48
	49	#ifdef MICROPORT /* Microport 2.4 hack */
	50	AV *GvAVn();
	51	#else
	52	#define GvAVn(gv) (GvGP(gv)->gp_av ? \
	53	GvGP(gv)->gp_av : \
	54	GvGP(gv_AVadd(gv))->gp_av)
	55	#endif
	56	#define GvHV(gv) ((GvGP(gv))->gp_hv)
	57
	58	#ifdef MICROPORT /* Microport 2.4 hack */
	59	HV *GvHVn();
	60	#else
	61	#define GvHVn(gv) (GvGP(gv)->gp_hv ? \
	62	GvGP(gv)->gp_hv : \
	63	GvGP(gv_HVadd(gv))->gp_hv)
	64	#endif /* Microport 2.4 hack */
	65
	66	#define GvCV(gv) (GvGP(gv)->gp_cv)
463ee0b2	67	#define GvCVGEN(gv) (GvGP(gv)->gp_cvgen)
8ebc5c01	68	#define GvCVu(gv) (GvGP(gv)->gp_cvgen ? Nullcv : GvGP(gv)->gp_cv)
79072805	69
f4c556ac	70	#define GvGPFLAGS(gv) (GvGP(gv)->gp_flags)
79072805	71
79072805	72	#define GvLINE(gv) (GvGP(gv)->gp_line)
b195d487	73	#define GvFILE(gv) (GvGP(gv)->gp_file)
57843af0	74	#define GvFILEGV(gv) (gv_fetchfile(GvFILE(gv)))
79072805	75
79072805	76	#define GvEGV(gv) (GvGP(gv)->gp_egv)
748a9306	77	#define GvENAME(gv) GvNAME(GvEGV(gv) ? GvEGV(gv) : gv)
748a9306	78	#define GvESTASH(gv) GvSTASH(GvEGV(gv) ? GvEGV(gv) : gv)
79072805	79
a5f75d66	80	#define GVf_INTRO 0x01
	81	#define GVf_MULTI 0x02
	82	#define GVf_ASSUMECV 0x04
743e66e6	83	#define GVf_IN_PAD 0x08
a5f75d66	84	#define GVf_IMPORTED 0xF0
	85	#define GVf_IMPORTED_SV 0x10
	86	#define GVf_IMPORTED_AV 0x20
	87	#define GVf_IMPORTED_HV 0x40
	88	#define GVf_IMPORTED_CV 0x80
	89
	90	#define GvINTRO(gv) (GvFLAGS(gv) & GVf_INTRO)
	91	#define GvINTRO_on(gv) (GvFLAGS(gv) \|= GVf_INTRO)
	92	#define GvINTRO_off(gv) (GvFLAGS(gv) &= ~GVf_INTRO)
	93
	94	#define GvMULTI(gv) (GvFLAGS(gv) & GVf_MULTI)
	95	#define GvMULTI_on(gv) (GvFLAGS(gv) \|= GVf_MULTI)
	96	#define GvMULTI_off(gv) (GvFLAGS(gv) &= ~GVf_MULTI)
	97
	98	#define GvASSUMECV(gv) (GvFLAGS(gv) & GVf_ASSUMECV)
	99	#define GvASSUMECV_on(gv) (GvFLAGS(gv) \|= GVf_ASSUMECV)
	100	#define GvASSUMECV_off(gv) (GvFLAGS(gv) &= ~GVf_ASSUMECV)
	101
	102	#define GvIMPORTED(gv) (GvFLAGS(gv) & GVf_IMPORTED)
	103	#define GvIMPORTED_on(gv) (GvFLAGS(gv) \|= GVf_IMPORTED)
	104	#define GvIMPORTED_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED)
	105
	106	#define GvIMPORTED_SV(gv) (GvFLAGS(gv) & GVf_IMPORTED_SV)
	107	#define GvIMPORTED_SV_on(gv) (GvFLAGS(gv) \|= GVf_IMPORTED_SV)
	108	#define GvIMPORTED_SV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_SV)
	109
	110	#define GvIMPORTED_AV(gv) (GvFLAGS(gv) & GVf_IMPORTED_AV)
	111	#define GvIMPORTED_AV_on(gv) (GvFLAGS(gv) \|= GVf_IMPORTED_AV)
	112	#define GvIMPORTED_AV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_AV)
	113
	114	#define GvIMPORTED_HV(gv) (GvFLAGS(gv) & GVf_IMPORTED_HV)
	115	#define GvIMPORTED_HV_on(gv) (GvFLAGS(gv) \|= GVf_IMPORTED_HV)
	116	#define GvIMPORTED_HV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_HV)
	117
	118	#define GvIMPORTED_CV(gv) (GvFLAGS(gv) & GVf_IMPORTED_CV)
	119	#define GvIMPORTED_CV_on(gv) (GvFLAGS(gv) \|= GVf_IMPORTED_CV)
	120	#define GvIMPORTED_CV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_CV)
	121
743e66e6	122	#define GvIN_PAD(gv) (GvFLAGS(gv) & GVf_IN_PAD)
	123	#define GvIN_PAD_on(gv) (GvFLAGS(gv) \|= GVf_IN_PAD)
	124	#define GvIN_PAD_off(gv) (GvFLAGS(gv) &= ~GVf_IN_PAD)
	125
79072805	126	#define Nullgv Null(GV*)
	127
	128	#define DM_UID 0x003
	129	#define DM_RUID 0x001
	130	#define DM_EUID 0x002
	131	#define DM_GID 0x030
	132	#define DM_RGID 0x010
	133	#define DM_EGID 0x020
	134	#define DM_DELAY 0x100
	135
0f303493	136	/*
864dbfa3	137	* symbol creation flags, for use in gv_fetchpv() and get_*v()
0f303493	138	*/
	139	#define GV_ADD 0x01 /* add, if symbol not already there */
	140	#define GV_ADDMULTI 0x02 /* add, pretending it has been added already */
	141	#define GV_ADDWARN 0x04 /* add, but warn if symbol wasn't already there */
	142	#define GV_ADDINEVAL 0x08 /* add, as though we're doing so within an eval */
	143	#define GV_NOINIT 0x10 /* add, but don't init symbol, if type != PVGV */
77ca0c92	144	#define GV_ADDOUR 0x20 /* add "our" variable */