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perl 5.003_01: embed.h
[perl5.git] / gv.h
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a0d0e21e 1/* gv.h
79072805 2 *
a0d0e21e 3 * Copyright (c) 1991-1994, Larry Wall
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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 *
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8 */
9
10struct 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 */
16 HV * gp_hv; /* associative array value */
17 GV * gp_egv; /* effective gv, if *glob */
18 CV * gp_cv; /* subroutine value */
463ee0b2 19 U32 gp_cvgen; /* generational validity of cached gv_cv */
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20 I32 gp_lastexpr; /* used by nothing_in_common() */
21 line_t gp_line; /* line first declared at (for -w) */
8990e307 22 GV * gp_filegv; /* file first declared in (for -w) */
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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
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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
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37#define GvSV(gv) (GvGP(gv)->gp_sv)
38#define GvREFCNT(gv) (GvGP(gv)->gp_refcnt)
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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)))
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42
43#define GvFORM(gv) (GvGP(gv)->gp_form)
44#define GvAV(gv) (GvGP(gv)->gp_av)
45
46#ifdef MICROPORT /* Microport 2.4 hack */
47AV *GvAVn();
48#else
49#define GvAVn(gv) (GvGP(gv)->gp_av ? \
50 GvGP(gv)->gp_av : \
51 GvGP(gv_AVadd(gv))->gp_av)
52#endif
53#define GvHV(gv) ((GvGP(gv))->gp_hv)
54
55#ifdef MICROPORT /* Microport 2.4 hack */
56HV *GvHVn();
57#else
58#define GvHVn(gv) (GvGP(gv)->gp_hv ? \
59 GvGP(gv)->gp_hv : \
60 GvGP(gv_HVadd(gv))->gp_hv)
61#endif /* Microport 2.4 hack */
62
63#define GvCV(gv) (GvGP(gv)->gp_cv)
463ee0b2 64#define GvCVGEN(gv) (GvGP(gv)->gp_cvgen)
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65
66#define GvLASTEXPR(gv) (GvGP(gv)->gp_lastexpr)
67
68#define GvLINE(gv) (GvGP(gv)->gp_line)
8990e307 69#define GvFILEGV(gv) (GvGP(gv)->gp_filegv)
79072805 70
79072805 71#define GvEGV(gv) (GvGP(gv)->gp_egv)
748a9306 72#define GvENAME(gv) GvNAME(GvEGV(gv) ? GvEGV(gv) : gv)
748a9306 73#define GvESTASH(gv) GvSTASH(GvEGV(gv) ? GvEGV(gv) : gv)
79072805 74
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75#define GVf_INTRO 0x01
76#define GVf_MULTI 0x02
77#define GVf_ASSUMECV 0x04
78#define GVf_IMPORTED 0xF0
79#define GVf_IMPORTED_SV 0x10
80#define GVf_IMPORTED_AV 0x20
81#define GVf_IMPORTED_HV 0x40
82#define GVf_IMPORTED_CV 0x80
83
84#define GvINTRO(gv) (GvFLAGS(gv) & GVf_INTRO)
85#define GvINTRO_on(gv) (GvFLAGS(gv) |= GVf_INTRO)
86#define GvINTRO_off(gv) (GvFLAGS(gv) &= ~GVf_INTRO)
87
88#define GvMULTI(gv) (GvFLAGS(gv) & GVf_MULTI)
89#define GvMULTI_on(gv) (GvFLAGS(gv) |= GVf_MULTI)
90#define GvMULTI_off(gv) (GvFLAGS(gv) &= ~GVf_MULTI)
91
92#define GvASSUMECV(gv) (GvFLAGS(gv) & GVf_ASSUMECV)
93#define GvASSUMECV_on(gv) (GvFLAGS(gv) |= GVf_ASSUMECV)
94#define GvASSUMECV_off(gv) (GvFLAGS(gv) &= ~GVf_ASSUMECV)
95
96#define GvIMPORTED(gv) (GvFLAGS(gv) & GVf_IMPORTED)
97#define GvIMPORTED_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED)
98#define GvIMPORTED_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED)
99
100#define GvIMPORTED_SV(gv) (GvFLAGS(gv) & GVf_IMPORTED_SV)
101#define GvIMPORTED_SV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_SV)
102#define GvIMPORTED_SV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_SV)
103
104#define GvIMPORTED_AV(gv) (GvFLAGS(gv) & GVf_IMPORTED_AV)
105#define GvIMPORTED_AV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_AV)
106#define GvIMPORTED_AV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_AV)
107
108#define GvIMPORTED_HV(gv) (GvFLAGS(gv) & GVf_IMPORTED_HV)
109#define GvIMPORTED_HV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_HV)
110#define GvIMPORTED_HV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_HV)
111
112#define GvIMPORTED_CV(gv) (GvFLAGS(gv) & GVf_IMPORTED_CV)
113#define GvIMPORTED_CV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_CV)
114#define GvIMPORTED_CV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_CV)
115
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116#define Nullgv Null(GV*)
117
118#define DM_UID 0x003
119#define DM_RUID 0x001
120#define DM_EUID 0x002
121#define DM_GID 0x030
122#define DM_RGID 0x010
123#define DM_EGID 0x020
124#define DM_DELAY 0x100
125
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126#define GV_ADD 0x01
127#define GV_ADDMULTI 0x02
128#define GV_ADDWARN 0x04