Initial Commit
This commit is contained in:
Riley Schneider
285
database/perl/lib/CORE/gv.h
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285
database/perl/lib/CORE/gv.h
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/* gv.h
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*
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* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
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* 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
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*
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* You may distribute under the terms of either the GNU General Public
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* License or the Artistic License, as specified in the README file.
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*
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*/
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struct gp {
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SV * gp_sv; /* scalar value */
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struct io * gp_io; /* filehandle value */
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CV * gp_cv; /* subroutine value */
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U32 gp_cvgen; /* generational validity of cached gp_cv */
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U32 gp_refcnt; /* how many globs point to this? */
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HV * gp_hv; /* hash value */
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AV * gp_av; /* array value */
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CV * gp_form; /* format value */
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GV * gp_egv; /* effective gv, if *glob */
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PERL_BITFIELD32 gp_line:31; /* line first declared at (for -w) */
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PERL_BITFIELD32 gp_flags:1;
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HEK * gp_file_hek; /* file first declared in (for -w) */
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};
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#define GvXPVGV(gv) ((XPVGV*)SvANY(gv))
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#if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__INTEL_COMPILER)
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# define GvGP(gv) \
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(0+(*({GV *const _gvgp = (GV *) (gv); \
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assert(SvTYPE(_gvgp) == SVt_PVGV || SvTYPE(_gvgp) == SVt_PVLV); \
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assert(isGV_with_GP(_gvgp)); \
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&((_gvgp)->sv_u.svu_gp);})))
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# define GvGP_set(gv,gp) \
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{GV *const _gvgp = (GV *) (gv); \
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assert(SvTYPE(_gvgp) == SVt_PVGV || SvTYPE(_gvgp) == SVt_PVLV); \
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assert(isGV_with_GP(_gvgp)); \
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(_gvgp)->sv_u.svu_gp = (gp); }
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# define GvFLAGS(gv) \
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(*({GV *const _gvflags = (GV *) (gv); \
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assert(SvTYPE(_gvflags) == SVt_PVGV || SvTYPE(_gvflags) == SVt_PVLV); \
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assert(isGV_with_GP(_gvflags)); \
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&(GvXPVGV(_gvflags)->xpv_cur);}))
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# define GvSTASH(gv) \
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(*({ GV * const _gvstash = (GV *) (gv); \
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assert(isGV_with_GP(_gvstash)); \
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assert(SvTYPE(_gvstash) == SVt_PVGV || SvTYPE(_gvstash) >= SVt_PVLV); \
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&(GvXPVGV(_gvstash)->xnv_u.xgv_stash); \
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}))
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# define GvNAME_HEK(gv) \
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(*({ GV * const _gvname_hek = (GV *) (gv); \
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assert(isGV_with_GP(_gvname_hek)); \
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assert(SvTYPE(_gvname_hek) == SVt_PVGV || SvTYPE(_gvname_hek) >= SVt_PVLV); \
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&(GvXPVGV(_gvname_hek)->xiv_u.xivu_namehek); \
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}))
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# define GvNAME_get(gv) ({ assert(GvNAME_HEK(gv)); (char *)HEK_KEY(GvNAME_HEK(gv)); })
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# define GvNAMELEN_get(gv) ({ assert(GvNAME_HEK(gv)); HEK_LEN(GvNAME_HEK(gv)); })
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# define GvNAMEUTF8(gv) ({ assert(GvNAME_HEK(gv)); HEK_UTF8(GvNAME_HEK(gv)); })
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#else
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# define GvGP(gv) (0+(gv)->sv_u.svu_gp)
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# define GvGP_set(gv,gp) ((gv)->sv_u.svu_gp = (gp))
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# define GvFLAGS(gv) (GvXPVGV(gv)->xpv_cur)
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# define GvSTASH(gv) (GvXPVGV(gv)->xnv_u.xgv_stash)
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# define GvNAME_HEK(gv) (GvXPVGV(gv)->xiv_u.xivu_namehek)
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# define GvNAME_get(gv) HEK_KEY(GvNAME_HEK(gv))
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# define GvNAMELEN_get(gv) HEK_LEN(GvNAME_HEK(gv))
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# define GvNAMEUTF8(gv) HEK_UTF8(GvNAME_HEK(gv))
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#endif
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#define GvNAME(gv) GvNAME_get(gv)
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#define GvNAMELEN(gv) GvNAMELEN_get(gv)
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/*
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=head1 GV Functions
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=for apidoc Am|SV*|GvSV|GV* gv
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Return the SV from the GV.
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=for apidoc Am|AV*|GvAV|GV* gv
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Return the AV from the GV.
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=for apidoc Am|HV*|GvHV|GV* gv
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Return the HV from the GV.
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=for apidoc Am|CV*|GvCV|GV* gv
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Return the CV from the GV.
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=cut
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*/
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#define GvSV(gv) (GvGP(gv)->gp_sv)
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#ifdef PERL_DONT_CREATE_GVSV
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#define GvSVn(gv) (*(GvGP(gv)->gp_sv ? \
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&(GvGP(gv)->gp_sv) : \
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&(GvGP(gv_SVadd(gv))->gp_sv)))
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#else
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#define GvSVn(gv) GvSV(gv)
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#endif
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#define GvREFCNT(gv) (GvGP(gv)->gp_refcnt)
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#define GvIO(gv) \
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( \
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(gv) \
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&& ( \
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SvTYPE((const SV*)(gv)) == SVt_PVGV \
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|| SvTYPE((const SV*)(gv)) == SVt_PVLV \
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) \
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&& GvGP(gv) \
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? GvIOp(gv) \
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: NULL \
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)
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#define GvIOp(gv) (GvGP(gv)->gp_io)
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#define GvIOn(gv) (GvIO(gv) ? GvIOp(gv) : GvIOp(gv_IOadd(gv)))
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#define GvFORM(gv) (GvGP(gv)->gp_form)
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#define GvAV(gv) (GvGP(gv)->gp_av)
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#define GvAVn(gv) (GvGP(gv)->gp_av ? \
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GvGP(gv)->gp_av : \
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GvGP(gv_AVadd(gv))->gp_av)
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#define GvHV(gv) ((GvGP(gv))->gp_hv)
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#define GvHVn(gv) (GvGP(gv)->gp_hv ? \
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GvGP(gv)->gp_hv : \
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GvGP(gv_HVadd(gv))->gp_hv)
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#define GvCV(gv) (0+GvGP(gv)->gp_cv)
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#define GvCV_set(gv,cv) (GvGP(gv)->gp_cv = (cv))
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#define GvCVGEN(gv) (GvGP(gv)->gp_cvgen)
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#define GvCVu(gv) (GvGP(gv)->gp_cvgen ? NULL : GvGP(gv)->gp_cv)
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#define GvGPFLAGS(gv) (GvGP(gv)->gp_flags)
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#define GvLINE(gv) (GvGP(gv)->gp_line)
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#define GvFILE_HEK(gv) (GvGP(gv)->gp_file_hek)
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#define GvFILEx(gv) HEK_KEY(GvFILE_HEK(gv))
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#define GvFILE(gv) (GvFILE_HEK(gv) ? GvFILEx(gv) : NULL)
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#define GvFILEGV(gv) (GvFILE_HEK(gv) ? gv_fetchfile(GvFILEx(gv)) : NULL)
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#define GvEGV(gv) (GvGP(gv)->gp_egv)
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#define GvEGVx(gv) (isGV_with_GP(gv) ? GvEGV(gv) : NULL)
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#define GvENAME(gv) GvNAME(GvEGV(gv) ? GvEGV(gv) : gv)
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#define GvENAMELEN(gv) GvNAMELEN(GvEGV(gv) ? GvEGV(gv) : gv)
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#define GvENAMEUTF8(gv) GvNAMEUTF8(GvEGV(gv) ? GvEGV(gv) : gv)
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#define GvENAME_HEK(gv) GvNAME_HEK(GvEGV(gv) ? GvEGV(gv) : gv)
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#define GvESTASH(gv) GvSTASH(GvEGV(gv) ? GvEGV(gv) : gv)
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/* GVf_INTRO is one-shot flag which indicates that the next assignment
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of a reference to the glob is to be localised; it distinguishes
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'local *g = $ref' from '*g = $ref'.
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*/
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#define GVf_INTRO 0x01
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#define GVf_MULTI 0x02
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#define GVf_ASSUMECV 0x04
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/* UNUSED 0x08 */
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#define GVf_IMPORTED 0xF0
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#define GVf_IMPORTED_SV 0x10
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#define GVf_IMPORTED_AV 0x20
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#define GVf_IMPORTED_HV 0x40
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#define GVf_IMPORTED_CV 0x80
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#define GvINTRO(gv) (GvFLAGS(gv) & GVf_INTRO)
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#define GvINTRO_on(gv) (GvFLAGS(gv) |= GVf_INTRO)
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#define GvINTRO_off(gv) (GvFLAGS(gv) &= ~GVf_INTRO)
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#define GvMULTI(gv) (GvFLAGS(gv) & GVf_MULTI)
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#define GvMULTI_on(gv) (GvFLAGS(gv) |= GVf_MULTI)
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#define GvMULTI_off(gv) (GvFLAGS(gv) &= ~GVf_MULTI)
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#define GvASSUMECV(gv) (GvFLAGS(gv) & GVf_ASSUMECV)
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#define GvASSUMECV_on(gv) (GvFLAGS(gv) |= GVf_ASSUMECV)
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#define GvASSUMECV_off(gv) (GvFLAGS(gv) &= ~GVf_ASSUMECV)
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#define GvIMPORTED(gv) (GvFLAGS(gv) & GVf_IMPORTED)
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#define GvIMPORTED_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED)
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#define GvIMPORTED_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED)
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#define GvIMPORTED_SV(gv) (GvFLAGS(gv) & GVf_IMPORTED_SV)
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#define GvIMPORTED_SV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_SV)
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#define GvIMPORTED_SV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_SV)
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#define GvIMPORTED_AV(gv) (GvFLAGS(gv) & GVf_IMPORTED_AV)
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#define GvIMPORTED_AV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_AV)
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#define GvIMPORTED_AV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_AV)
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#define GvIMPORTED_HV(gv) (GvFLAGS(gv) & GVf_IMPORTED_HV)
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#define GvIMPORTED_HV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_HV)
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#define GvIMPORTED_HV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_HV)
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#define GvIMPORTED_CV(gv) (GvFLAGS(gv) & GVf_IMPORTED_CV)
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#define GvIMPORTED_CV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_CV)
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#define GvIMPORTED_CV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_CV)
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#ifndef PERL_CORE
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# define GvIN_PAD(gv) 0
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# define GvIN_PAD_on(gv) NOOP
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# define GvIN_PAD_off(gv) NOOP
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# define Nullgv Null(GV*)
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#endif
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#define DM_RUID 0x001
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#define DM_EUID 0x002
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#define DM_UID (DM_RUID|DM_EUID)
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#define DM_ARRAY_ISA 0x004
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#define DM_RGID 0x010
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#define DM_EGID 0x020
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#define DM_GID (DM_RGID|DM_EGID)
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#define DM_DELAY 0x100
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/*
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* symbol creation flags, for use in gv_fetchpv() and get_*v()
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*/
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#define GV_ADD 0x01 /* add, if symbol not already there
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For gv_name_set, adding a HEK for the first
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time, so don't try to free what's there. */
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#define GV_ADDMULTI 0x02 /* add, pretending it has been added
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already; used also by gv_init_* */
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#define GV_ADDWARN 0x04 /* add, but warn if symbol wasn't already there */
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/* 0x08 UNUSED */
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#define GV_NOINIT 0x10 /* add, but don't init symbol, if type != PVGV */
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/* This is used by toke.c to avoid turing placeholder constants in the symbol
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table into full PVGVs with attached constant subroutines. */
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#define GV_NOADD_NOINIT 0x20 /* Don't add the symbol if it's not there.
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Don't init it if it is there but ! PVGV */
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#define GV_NOEXPAND 0x40 /* Don't expand SvOK() entries to PVGV */
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#define GV_NOTQUAL 0x80 /* A plain symbol name, not qualified with a
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package (so skip checks for :: and ') */
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#define GV_AUTOLOAD 0x100 /* gv_fetchmethod_flags() should AUTOLOAD */
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#define GV_CROAK 0x200 /* gv_fetchmethod_flags() should croak */
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#define GV_ADDMG 0x400 /* add if magical */
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#define GV_NO_SVGMAGIC 0x800 /* Skip get-magic on an SV argument;
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used only by gv_fetchsv(_nomg) */
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#define GV_CACHE_ONLY 0x1000 /* return stash only if found in cache;
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used only in flags parameter to gv_stash* family */
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/* Flags for gv_fetchmeth_pvn and gv_autoload_pvn*/
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#define GV_SUPER 0x1000 /* SUPER::method */
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/* Flags for gv_autoload_*/
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#define GV_AUTOLOAD_ISMETHOD 1 /* autoloading a method? */
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/* SVf_UTF8 (more accurately the return value from SvUTF8) is also valid
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as a flag to various gv_* functions, so ensure it lies
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outside this range.
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*/
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#define GV_NOADD_MASK \
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(SVf_UTF8|GV_NOADD_NOINIT|GV_NOEXPAND|GV_NOTQUAL|GV_ADDMG|GV_NO_SVGMAGIC)
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/* The bit flags that don't cause gv_fetchpv() to add a symbol if not
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found (with the exception GV_ADDMG, which *might* cause the symbol
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to be added) */
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#define gv_fullname3(sv,gv,prefix) gv_fullname4(sv,gv,prefix,TRUE)
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#define gv_efullname3(sv,gv,prefix) gv_efullname4(sv,gv,prefix,TRUE)
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#define gv_fetchmethod(stash, name) gv_fetchmethod_autoload(stash, name, TRUE)
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#define gv_fetchsv_nomg(n,f,t) gv_fetchsv(n,(f)|GV_NO_SVGMAGIC,t)
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#define gv_init(gv,stash,name,len,multi) \
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gv_init_pvn(gv,stash,name,len,GV_ADDMULTI*!!(multi))
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#define gv_fetchmeth(stash,name,len,level) gv_fetchmeth_pvn(stash, name, len, level, 0)
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#define gv_fetchmeth_autoload(stash,name,len,level) gv_fetchmeth_pvn_autoload(stash, name, len, level, 0)
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#define gv_fetchmethod_flags(stash,name,flags) gv_fetchmethod_pv_flags(stash, name, flags)
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#define gv_autoload4(stash, name, len, method) \
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gv_autoload_pvn(stash, name, len, !!(method))
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#define newGVgen(pack) newGVgen_flags(pack, 0)
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#define gv_method_changed(gv) \
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( \
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assert_(isGV_with_GP(gv)) \
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GvREFCNT(gv) > 1 \
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? (void)++PL_sub_generation \
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: mro_method_changed_in(GvSTASH(gv)) \
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)
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#define gv_AVadd(gv) gv_add_by_type((gv), SVt_PVAV)
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#define gv_HVadd(gv) gv_add_by_type((gv), SVt_PVHV)
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#define gv_IOadd(gv) gv_add_by_type((gv), SVt_PVIO)
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#define gv_SVadd(gv) gv_add_by_type((gv), SVt_NULL)
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/*
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* ex: set ts=8 sts=4 sw=4 et:
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*/
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