| | 1 | /* gv.h |
| | 2 | * |
| | 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 |
| | 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 | * |
| | 9 | */ |
| | 10 | |
| | 11 | struct 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 */ |
| | 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) */ |
| | 23 | }; |
| | 24 | |
| | 25 | #define GvXPVGV(gv) ((XPVGV*)SvANY(gv)) |
| | 26 | |
| | 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. And MinGW |
| | 30 | * (gcc-3.4.2) has a different problem when compiling win32/perllib.c! */ |
| | 31 | #if defined(DEBUGGING) && \ |
| | 32 | ((!defined(_MSC_VER) || _MSC_VER > 1200) && \ |
| | 33 | !defined(__BORLANDC__) && !defined(__MINGW32__)) |
| | 34 | # define GvGP(gv) (*(assert(SvTYPE(gv) == SVt_PVGV || \ |
| | 35 | SvTYPE(gv) == SVt_PVLV), \ |
| | 36 | &(GvXPVGV(gv)->xgv_gp))) |
| | 37 | #else |
| | 38 | # define GvGP(gv) (GvXPVGV(gv)->xgv_gp) |
| | 39 | #endif |
| | 40 | |
| | 41 | #define GvNAME(gv) (GvXPVGV(gv)->xgv_name) |
| | 42 | #define GvNAMELEN(gv) (GvXPVGV(gv)->xgv_namelen) |
| | 43 | #define GvSTASH(gv) (GvXPVGV(gv)->xgv_stash) |
| | 44 | #define GvFLAGS(gv) (GvXPVGV(gv)->xgv_flags) |
| | 45 | |
| | 46 | /* |
| | 47 | =head1 GV Functions |
| | 48 | |
| | 49 | =for apidoc Am|SV*|GvSV|GV* gv |
| | 50 | |
| | 51 | Return the SV from the GV. |
| | 52 | |
| | 53 | =cut |
| | 54 | */ |
| | 55 | |
| | 56 | #define GvSV(gv) (GvGP(gv)->gp_sv) |
| | 57 | #ifdef PERL_DONT_CREATE_GVSV |
| | 58 | #define GvSVn(gv) (*(GvGP(gv)->gp_sv ? \ |
| | 59 | &(GvGP(gv)->gp_sv) : \ |
| | 60 | &(GvGP(gv_SVadd(gv))->gp_sv))) |
| | 61 | #else |
| | 62 | #define GvSVn(gv) GvSV(gv) |
| | 63 | #endif |
| | 64 | |
| | 65 | #define GvREFCNT(gv) (GvGP(gv)->gp_refcnt) |
| | 66 | #define GvIO(gv) ((gv) && SvTYPE((SV*)gv) == SVt_PVGV && GvGP(gv) ? GvIOp(gv) : 0) |
| | 67 | #define GvIOp(gv) (GvGP(gv)->gp_io) |
| | 68 | #define GvIOn(gv) (GvIO(gv) ? GvIOp(gv) : GvIOp(gv_IOadd(gv))) |
| | 69 | |
| | 70 | #define GvFORM(gv) (GvGP(gv)->gp_form) |
| | 71 | #define GvAV(gv) (GvGP(gv)->gp_av) |
| | 72 | |
| | 73 | /* This macro is deprecated. Do not use! */ |
| | 74 | #define GvREFCNT_inc(gv) ((GV*)SvREFCNT_inc(gv)) /* DO NOT USE */ |
| | 75 | |
| | 76 | #define GvAVn(gv) (GvGP(gv)->gp_av ? \ |
| | 77 | GvGP(gv)->gp_av : \ |
| | 78 | GvGP(gv_AVadd(gv))->gp_av) |
| | 79 | #define GvHV(gv) ((GvGP(gv))->gp_hv) |
| | 80 | |
| | 81 | #define GvHVn(gv) (GvGP(gv)->gp_hv ? \ |
| | 82 | GvGP(gv)->gp_hv : \ |
| | 83 | GvGP(gv_HVadd(gv))->gp_hv) |
| | 84 | |
| | 85 | #define GvCV(gv) (GvGP(gv)->gp_cv) |
| | 86 | #define GvCVGEN(gv) (GvGP(gv)->gp_cvgen) |
| | 87 | #define GvCVu(gv) (GvGP(gv)->gp_cvgen ? NULL : GvGP(gv)->gp_cv) |
| | 88 | |
| | 89 | #define GvLINE(gv) (GvGP(gv)->gp_line) |
| | 90 | #define GvFILE(gv) (GvGP(gv)->gp_file) |
| | 91 | #define GvFILEGV(gv) (gv_fetchfile(GvFILE(gv))) |
| | 92 | |
| | 93 | #define GvEGV(gv) (GvGP(gv)->gp_egv) |
| | 94 | #define GvENAME(gv) GvNAME(GvEGV(gv) ? GvEGV(gv) : gv) |
| | 95 | #define GvESTASH(gv) GvSTASH(GvEGV(gv) ? GvEGV(gv) : gv) |
| | 96 | |
| | 97 | #define GVf_INTRO 0x01 |
| | 98 | #define GVf_MULTI 0x02 |
| | 99 | #define GVf_ASSUMECV 0x04 |
| | 100 | #define GVf_IN_PAD 0x08 |
| | 101 | #define GVf_IMPORTED 0xF0 |
| | 102 | #define GVf_IMPORTED_SV 0x10 |
| | 103 | #define GVf_IMPORTED_AV 0x20 |
| | 104 | #define GVf_IMPORTED_HV 0x40 |
| | 105 | #define GVf_IMPORTED_CV 0x80 |
| | 106 | |
| | 107 | #define GvINTRO(gv) (GvFLAGS(gv) & GVf_INTRO) |
| | 108 | #define GvINTRO_on(gv) (GvFLAGS(gv) |= GVf_INTRO) |
| | 109 | #define GvINTRO_off(gv) (GvFLAGS(gv) &= ~GVf_INTRO) |
| | 110 | |
| | 111 | #define GvMULTI(gv) (GvFLAGS(gv) & GVf_MULTI) |
| | 112 | #define GvMULTI_on(gv) (GvFLAGS(gv) |= GVf_MULTI) |
| | 113 | #define GvMULTI_off(gv) (GvFLAGS(gv) &= ~GVf_MULTI) |
| | 114 | |
| | 115 | #define GvASSUMECV(gv) (GvFLAGS(gv) & GVf_ASSUMECV) |
| | 116 | #define GvASSUMECV_on(gv) (GvFLAGS(gv) |= GVf_ASSUMECV) |
| | 117 | #define GvASSUMECV_off(gv) (GvFLAGS(gv) &= ~GVf_ASSUMECV) |
| | 118 | |
| | 119 | #define GvIMPORTED(gv) (GvFLAGS(gv) & GVf_IMPORTED) |
| | 120 | #define GvIMPORTED_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED) |
| | 121 | #define GvIMPORTED_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED) |
| | 122 | |
| | 123 | #define GvIMPORTED_SV(gv) (GvFLAGS(gv) & GVf_IMPORTED_SV) |
| | 124 | #define GvIMPORTED_SV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_SV) |
| | 125 | #define GvIMPORTED_SV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_SV) |
| | 126 | |
| | 127 | #define GvIMPORTED_AV(gv) (GvFLAGS(gv) & GVf_IMPORTED_AV) |
| | 128 | #define GvIMPORTED_AV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_AV) |
| | 129 | #define GvIMPORTED_AV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_AV) |
| | 130 | |
| | 131 | #define GvIMPORTED_HV(gv) (GvFLAGS(gv) & GVf_IMPORTED_HV) |
| | 132 | #define GvIMPORTED_HV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_HV) |
| | 133 | #define GvIMPORTED_HV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_HV) |
| | 134 | |
| | 135 | #define GvIMPORTED_CV(gv) (GvFLAGS(gv) & GVf_IMPORTED_CV) |
| | 136 | #define GvIMPORTED_CV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_CV) |
| | 137 | #define GvIMPORTED_CV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_CV) |
| | 138 | |
| | 139 | #define GvIN_PAD(gv) (GvFLAGS(gv) & GVf_IN_PAD) |
| | 140 | #define GvIN_PAD_on(gv) (GvFLAGS(gv) |= GVf_IN_PAD) |
| | 141 | #define GvIN_PAD_off(gv) (GvFLAGS(gv) &= ~GVf_IN_PAD) |
| | 142 | |
| | 143 | #define GvUNIQUE(gv) 0 |
| | 144 | #define GvUNIQUE_on(gv) |
| | 145 | #define GvUNIQUE_off(gv) |
| | 146 | |
| | 147 | #ifdef USE_ITHREADS |
| | 148 | #define GV_UNIQUE_CHECK |
| | 149 | #else |
| | 150 | #undef GV_UNIQUE_CHECK |
| | 151 | #endif |
| | 152 | |
| | 153 | #define Nullgv Null(GV*) |
| | 154 | |
| | 155 | #define DM_UID 0x003 |
| | 156 | #define DM_RUID 0x001 |
| | 157 | #define DM_EUID 0x002 |
| | 158 | #define DM_GID 0x030 |
| | 159 | #define DM_RGID 0x010 |
| | 160 | #define DM_EGID 0x020 |
| | 161 | #define DM_DELAY 0x100 |
| | 162 | |
| | 163 | /* |
| | 164 | * symbol creation flags, for use in gv_fetchpv() and get_*v() |
| | 165 | */ |
| | 166 | #define GV_ADD 0x01 /* add, if symbol not already there */ |
| | 167 | #define GV_ADDMULTI 0x02 /* add, pretending it has been added already */ |
| | 168 | #define GV_ADDWARN 0x04 /* add, but warn if symbol wasn't already there */ |
| | 169 | #define GV_ADDINEVAL 0x08 /* add, as though we're doing so within an eval */ |
| | 170 | #define GV_NOINIT 0x10 /* add, but don't init symbol, if type != PVGV */ |
| | 171 | /* This is used by toke.c to avoid turing placeholder constants in the symbol |
| | 172 | table into full PVGVs with attached constant subroutines. */ |
| | 173 | #define GV_NOADD_NOINIT 0x20 /* Don't add the symbol if it's not there. |
| | 174 | Don't init it if it is there but ! PVGV */ |
| | 175 | #define GV_NOEXPAND 0x40 /* Don't expand SvOK() entries to PVGV */ |
| | 176 | #define GV_NOTQUAL 0x80 /* A plain symbol name, not qualified with a |
| | 177 | package (so skip checks for :: and ') */ |
| | 178 | |
| | 179 | /* SVf_UTF8 (more accurately the return value from SvUTF8) is also valid |
| | 180 | as a flag to gv_fetch_pvn_flags, so ensure it lies outside this range. |
| | 181 | */ |
| | 182 | #define gv_fullname3(sv,gv,prefix) gv_fullname4(sv,gv,prefix,TRUE) |
| | 183 | #define gv_efullname3(sv,gv,prefix) gv_efullname4(sv,gv,prefix,TRUE) |
| | 184 | #define gv_fetchmethod(stash, name) gv_fetchmethod_autoload(stash, name, TRUE) |
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