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Workaround Win32 compiler bugs following change 26395
[perl5.git] / gv.h
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a0d0e21e 1/* gv.h
79072805 2 *
4bb101f2 3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
1d325971 4 * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
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5 *
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.
8 *
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9 */
10
11struct gp {
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 */
aa689395 17 HV * gp_hv; /* hash value */
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18 GV * gp_egv; /* effective gv, if *glob */
19 CV * gp_cv; /* subroutine value */
463ee0b2 20 U32 gp_cvgen; /* generational validity of cached gv_cv */
79072805 21 line_t gp_line; /* line first declared at (for -w) */
1cb0ed9b 22 char * gp_file; /* file first declared in (for -w) */
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23};
24
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25#define GvXPVGV(gv) ((XPVGV*)SvANY(gv))
26
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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__))
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32# define GvGP(gv) (*(assert(SvTYPE(gv) == SVt_PVGV || \
33 SvTYPE(gv) == SVt_PVLV), \
34 &(GvXPVGV(gv)->xgv_gp)))
35#else
36# define GvGP(gv) (GvXPVGV(gv)->xgv_gp)
37#endif
38
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39#define GvNAME(gv) (GvXPVGV(gv)->xgv_name)
40#define GvNAMELEN(gv) (GvXPVGV(gv)->xgv_namelen)
41#define GvSTASH(gv) (GvXPVGV(gv)->xgv_stash)
42#define GvFLAGS(gv) (GvXPVGV(gv)->xgv_flags)
43
954c1994 44/*
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45=head1 GV Functions
46
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47=for apidoc Am|SV*|GvSV|GV* gv
48
49Return the SV from the GV.
50
51=cut
52*/
53
79072805 54#define GvSV(gv) (GvGP(gv)->gp_sv)
c69033f2 55#ifdef PERL_DONT_CREATE_GVSV
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56#define GvSVn(gv) (*(GvGP(gv)->gp_sv ? \
57 &(GvGP(gv)->gp_sv) : \
58 &(GvGP(gv_SVadd(gv))->gp_sv)))
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59#else
60#define GvSVn(gv) GvSV(gv)
61#endif
62
79072805 63#define GvREFCNT(gv) (GvGP(gv)->gp_refcnt)
2035c5e8 64#define GvIO(gv) ((gv) && SvTYPE((SV*)gv) == SVt_PVGV && GvGP(gv) ? GvIOp(gv) : 0)
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65#define GvIOp(gv) (GvGP(gv)->gp_io)
66#define GvIOn(gv) (GvIO(gv) ? GvIOp(gv) : GvIOp(gv_IOadd(gv)))
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67
68#define GvFORM(gv) (GvGP(gv)->gp_form)
69#define GvAV(gv) (GvGP(gv)->gp_av)
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70
71/* This macro is deprecated. Do not use! */
72#define GvREFCNT_inc(gv) ((GV*)SvREFCNT_inc(gv)) /* DO NOT USE */
79072805 73
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74#define GvAVn(gv) (GvGP(gv)->gp_av ? \
75 GvGP(gv)->gp_av : \
76 GvGP(gv_AVadd(gv))->gp_av)
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77#define GvHV(gv) ((GvGP(gv))->gp_hv)
78
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79#define GvHVn(gv) (GvGP(gv)->gp_hv ? \
80 GvGP(gv)->gp_hv : \
81 GvGP(gv_HVadd(gv))->gp_hv)
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82
83#define GvCV(gv) (GvGP(gv)->gp_cv)
463ee0b2 84#define GvCVGEN(gv) (GvGP(gv)->gp_cvgen)
8ebc5c01 85#define GvCVu(gv) (GvGP(gv)->gp_cvgen ? Nullcv : GvGP(gv)->gp_cv)
79072805 86
79072805 87#define GvLINE(gv) (GvGP(gv)->gp_line)
b195d487 88#define GvFILE(gv) (GvGP(gv)->gp_file)
57843af0 89#define GvFILEGV(gv) (gv_fetchfile(GvFILE(gv)))
79072805 90
79072805 91#define GvEGV(gv) (GvGP(gv)->gp_egv)
748a9306 92#define GvENAME(gv) GvNAME(GvEGV(gv) ? GvEGV(gv) : gv)
748a9306 93#define GvESTASH(gv) GvSTASH(GvEGV(gv) ? GvEGV(gv) : gv)
79072805 94
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95#define GVf_INTRO 0x01
96#define GVf_MULTI 0x02
97#define GVf_ASSUMECV 0x04
743e66e6 98#define GVf_IN_PAD 0x08
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99#define GVf_IMPORTED 0xF0
100#define GVf_IMPORTED_SV 0x10
101#define GVf_IMPORTED_AV 0x20
102#define GVf_IMPORTED_HV 0x40
103#define GVf_IMPORTED_CV 0x80
104
105#define GvINTRO(gv) (GvFLAGS(gv) & GVf_INTRO)
106#define GvINTRO_on(gv) (GvFLAGS(gv) |= GVf_INTRO)
107#define GvINTRO_off(gv) (GvFLAGS(gv) &= ~GVf_INTRO)
108
109#define GvMULTI(gv) (GvFLAGS(gv) & GVf_MULTI)
110#define GvMULTI_on(gv) (GvFLAGS(gv) |= GVf_MULTI)
111#define GvMULTI_off(gv) (GvFLAGS(gv) &= ~GVf_MULTI)
112
113#define GvASSUMECV(gv) (GvFLAGS(gv) & GVf_ASSUMECV)
114#define GvASSUMECV_on(gv) (GvFLAGS(gv) |= GVf_ASSUMECV)
115#define GvASSUMECV_off(gv) (GvFLAGS(gv) &= ~GVf_ASSUMECV)
116
117#define GvIMPORTED(gv) (GvFLAGS(gv) & GVf_IMPORTED)
118#define GvIMPORTED_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED)
119#define GvIMPORTED_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED)
120
121#define GvIMPORTED_SV(gv) (GvFLAGS(gv) & GVf_IMPORTED_SV)
122#define GvIMPORTED_SV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_SV)
123#define GvIMPORTED_SV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_SV)
124
125#define GvIMPORTED_AV(gv) (GvFLAGS(gv) & GVf_IMPORTED_AV)
126#define GvIMPORTED_AV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_AV)
127#define GvIMPORTED_AV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_AV)
128
129#define GvIMPORTED_HV(gv) (GvFLAGS(gv) & GVf_IMPORTED_HV)
130#define GvIMPORTED_HV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_HV)
131#define GvIMPORTED_HV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_HV)
132
133#define GvIMPORTED_CV(gv) (GvFLAGS(gv) & GVf_IMPORTED_CV)
134#define GvIMPORTED_CV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_CV)
135#define GvIMPORTED_CV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_CV)
136
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137#define GvIN_PAD(gv) (GvFLAGS(gv) & GVf_IN_PAD)
138#define GvIN_PAD_on(gv) (GvFLAGS(gv) |= GVf_IN_PAD)
139#define GvIN_PAD_off(gv) (GvFLAGS(gv) &= ~GVf_IN_PAD)
140
49c0300d 141#define GvUNIQUE(gv) 0
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142#define GvUNIQUE_on(gv)
143#define GvUNIQUE_off(gv)
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144
145#ifdef USE_ITHREADS
7fb37951 146#define GV_UNIQUE_CHECK
5bd07a3d 147#else
7fb37951 148#undef GV_UNIQUE_CHECK
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149#endif
150
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151#define Nullgv Null(GV*)
152
153#define DM_UID 0x003
154#define DM_RUID 0x001
155#define DM_EUID 0x002
156#define DM_GID 0x030
157#define DM_RGID 0x010
158#define DM_EGID 0x020
159#define DM_DELAY 0x100
160
0f303493 161/*
864dbfa3 162 * symbol creation flags, for use in gv_fetchpv() and get_*v()
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163 */
164#define GV_ADD 0x01 /* add, if symbol not already there */
165#define GV_ADDMULTI 0x02 /* add, pretending it has been added already */
166#define GV_ADDWARN 0x04 /* add, but warn if symbol wasn't already there */
167#define GV_ADDINEVAL 0x08 /* add, as though we're doing so within an eval */
168#define GV_NOINIT 0x10 /* add, but don't init symbol, if type != PVGV */
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169/* This is used by toke.c to avoid turing placeholder constants in the symbol
170 table into full PVGVs with attached constant subroutines. */
171#define GV_NOADD_NOINIT 0x20 /* Don't add the symbol if it's not there.
172 Don't init it if it is there but ! PVGV */
e26df76a 173#define GV_NOEXPAND 0x40 /* Don't expand SvOK() entries to PVGV */
add2581e 174
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175/* SVf_UTF8 (more accurately the return value from SvUTF8) is also valid
176 as a flag to gv_fetch_pvn_flags, so ensure it lies outside this range.
177*/
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178#define gv_fullname3(sv,gv,prefix) gv_fullname4(sv,gv,prefix,TRUE)
179#define gv_efullname3(sv,gv,prefix) gv_efullname4(sv,gv,prefix,TRUE)
887986eb 180#define gv_fetchmethod(stash, name) gv_fetchmethod_autoload(stash, name, TRUE)