3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
12 SV * gp_sv; /* scalar value */
13 U32 gp_refcnt; /* how many globs point to this? */
14 struct io * gp_io; /* filehandle value */
15 CV * gp_form; /* format value */
16 AV * gp_av; /* array value */
17 HV * gp_hv; /* hash value */
18 GV * gp_egv; /* effective gv, if *glob */
19 CV * gp_cv; /* subroutine value */
20 U32 gp_cvgen; /* generational validity of cached gv_cv */
21 line_t gp_line; /* line first declared at (for -w) */
22 char * gp_file; /* file first declared in (for -w) */
25 #define GvXPVGV(gv) ((XPVGV*)SvANY(gv))
27 /* MSVC++ 6.0 (_MSC_VER == 1200) can't compile pp_hot.c with DEBUGGING enabled
28 * if we include the following assert(). Must be a compiler bug because it
29 * works fine with MSVC++ 7.0. Borland (5.5.1) has the same problem. */
30 #if defined(DEBUGGING) && \
31 ((!defined(_MSC_VER) || _MSC_VER > 1200) && !defined(__BORLANDC__))
32 # define GvGP(gv) (*(assert(SvTYPE(gv) == SVt_PVGV || \
33 SvTYPE(gv) == SVt_PVLV), \
34 &(GvXPVGV(gv)->xgv_gp)))
36 # define GvGP(gv) (GvXPVGV(gv)->xgv_gp)
39 #define GvNAME(gv) (GvXPVGV(gv)->xgv_name)
40 #define GvNAMELEN(gv) (GvXPVGV(gv)->xgv_namelen)
41 #define GvFLAGS(gv) (GvXPVGV(gv)->xgv_flags)
43 #if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
44 # define GvSTASH(gv) \
45 (*({ GV *_gv = (GV *) gv; \
46 assert(SvTYPE(_gv) == SVt_PVGV || SvTYPE(_gv) >= SVt_PVLV); \
47 &(GvXPVGV(_gv)->xgv_stash); \
50 #define GvSTASH(gv) (GvXPVGV(gv)->xgv_stash)
55 =for apidoc Am|SV*|GvSV|GV* gv
57 Return the SV from the GV.
62 #define GvSV(gv) (GvGP(gv)->gp_sv)
63 #ifdef PERL_DONT_CREATE_GVSV
64 #define GvSVn(gv) (*(GvGP(gv)->gp_sv ? \
65 &(GvGP(gv)->gp_sv) : \
66 &(GvGP(gv_SVadd(gv))->gp_sv)))
68 #define GvSVn(gv) GvSV(gv)
71 #define GvREFCNT(gv) (GvGP(gv)->gp_refcnt)
72 #define GvIO(gv) ((gv) && SvTYPE((SV*)gv) == SVt_PVGV && GvGP(gv) ? GvIOp(gv) : 0)
73 #define GvIOp(gv) (GvGP(gv)->gp_io)
74 #define GvIOn(gv) (GvIO(gv) ? GvIOp(gv) : GvIOp(gv_IOadd(gv)))
76 #define GvFORM(gv) (GvGP(gv)->gp_form)
77 #define GvAV(gv) (GvGP(gv)->gp_av)
79 /* This macro is deprecated. Do not use! */
80 #define GvREFCNT_inc(gv) ((GV*)SvREFCNT_inc(gv)) /* DO NOT USE */
82 #define GvAVn(gv) (GvGP(gv)->gp_av ? \
84 GvGP(gv_AVadd(gv))->gp_av)
85 #define GvHV(gv) ((GvGP(gv))->gp_hv)
87 #define GvHVn(gv) (GvGP(gv)->gp_hv ? \
89 GvGP(gv_HVadd(gv))->gp_hv)
91 #define GvCV(gv) (GvGP(gv)->gp_cv)
92 #define GvCVGEN(gv) (GvGP(gv)->gp_cvgen)
93 #define GvCVu(gv) (GvGP(gv)->gp_cvgen ? NULL : GvGP(gv)->gp_cv)
95 #define GvLINE(gv) (GvGP(gv)->gp_line)
96 #define GvFILE(gv) (GvGP(gv)->gp_file)
97 #define GvFILEGV(gv) (gv_fetchfile(GvFILE(gv)))
99 #define GvEGV(gv) (GvGP(gv)->gp_egv)
100 #define GvENAME(gv) GvNAME(GvEGV(gv) ? GvEGV(gv) : gv)
101 #define GvESTASH(gv) GvSTASH(GvEGV(gv) ? GvEGV(gv) : gv)
103 #define GVf_INTRO 0x01
104 #define GVf_MULTI 0x02
105 #define GVf_ASSUMECV 0x04
106 #define GVf_IN_PAD 0x08
107 #define GVf_IMPORTED 0xF0
108 #define GVf_IMPORTED_SV 0x10
109 #define GVf_IMPORTED_AV 0x20
110 #define GVf_IMPORTED_HV 0x40
111 #define GVf_IMPORTED_CV 0x80
113 #define GvINTRO(gv) (GvFLAGS(gv) & GVf_INTRO)
114 #define GvINTRO_on(gv) (GvFLAGS(gv) |= GVf_INTRO)
115 #define GvINTRO_off(gv) (GvFLAGS(gv) &= ~GVf_INTRO)
117 #define GvMULTI(gv) (GvFLAGS(gv) & GVf_MULTI)
118 #define GvMULTI_on(gv) (GvFLAGS(gv) |= GVf_MULTI)
119 #define GvMULTI_off(gv) (GvFLAGS(gv) &= ~GVf_MULTI)
121 #define GvASSUMECV(gv) (GvFLAGS(gv) & GVf_ASSUMECV)
122 #define GvASSUMECV_on(gv) (GvFLAGS(gv) |= GVf_ASSUMECV)
123 #define GvASSUMECV_off(gv) (GvFLAGS(gv) &= ~GVf_ASSUMECV)
125 #define GvIMPORTED(gv) (GvFLAGS(gv) & GVf_IMPORTED)
126 #define GvIMPORTED_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED)
127 #define GvIMPORTED_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED)
129 #define GvIMPORTED_SV(gv) (GvFLAGS(gv) & GVf_IMPORTED_SV)
130 #define GvIMPORTED_SV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_SV)
131 #define GvIMPORTED_SV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_SV)
133 #define GvIMPORTED_AV(gv) (GvFLAGS(gv) & GVf_IMPORTED_AV)
134 #define GvIMPORTED_AV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_AV)
135 #define GvIMPORTED_AV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_AV)
137 #define GvIMPORTED_HV(gv) (GvFLAGS(gv) & GVf_IMPORTED_HV)
138 #define GvIMPORTED_HV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_HV)
139 #define GvIMPORTED_HV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_HV)
141 #define GvIMPORTED_CV(gv) (GvFLAGS(gv) & GVf_IMPORTED_CV)
142 #define GvIMPORTED_CV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_CV)
143 #define GvIMPORTED_CV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_CV)
145 #define GvIN_PAD(gv) (GvFLAGS(gv) & GVf_IN_PAD)
146 #define GvIN_PAD_on(gv) (GvFLAGS(gv) |= GVf_IN_PAD)
147 #define GvIN_PAD_off(gv) (GvFLAGS(gv) &= ~GVf_IN_PAD)
149 #define GvUNIQUE(gv) 0
150 #define GvUNIQUE_on(gv)
151 #define GvUNIQUE_off(gv)
154 #define GV_UNIQUE_CHECK
156 #undef GV_UNIQUE_CHECK
159 #define Nullgv Null(GV*)
162 #define DM_RUID 0x001
163 #define DM_EUID 0x002
165 #define DM_RGID 0x010
166 #define DM_EGID 0x020
167 #define DM_DELAY 0x100
170 * symbol creation flags, for use in gv_fetchpv() and get_*v()
172 #define GV_ADD 0x01 /* add, if symbol not already there */
173 #define GV_ADDMULTI 0x02 /* add, pretending it has been added already */
174 #define GV_ADDWARN 0x04 /* add, but warn if symbol wasn't already there */
175 #define GV_ADDINEVAL 0x08 /* add, as though we're doing so within an eval */
176 #define GV_NOINIT 0x10 /* add, but don't init symbol, if type != PVGV */
177 /* This is used by toke.c to avoid turing placeholder constants in the symbol
178 table into full PVGVs with attached constant subroutines. */
179 #define GV_NOADD_NOINIT 0x20 /* Don't add the symbol if it's not there.
180 Don't init it if it is there but ! PVGV */
181 #define GV_NOEXPAND 0x40 /* Don't expand SvOK() entries to PVGV */
182 #define GV_NOTQUAL 0x80 /* A plain symbol name, not qualified with a
183 package (so skip checks for :: and ') */
185 /* SVf_UTF8 (more accurately the return value from SvUTF8) is also valid
186 as a flag to gv_fetch_pvn_flags, so ensure it lies outside this range.
188 #define gv_fullname3(sv,gv,prefix) gv_fullname4(sv,gv,prefix,TRUE)
189 #define gv_efullname3(sv,gv,prefix) gv_efullname4(sv,gv,prefix,TRUE)
190 #define gv_fetchmethod(stash, name) gv_fetchmethod_autoload(stash, name, TRUE)