/* gv.h
*
- * Copyright (c) 1991-1999, Larry Wall
+ * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+ * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
struct gp {
SV * gp_sv; /* scalar value */
- U32 gp_refcnt; /* how many globs point to this? */
struct io * gp_io; /* filehandle value */
- CV * gp_form; /* format value */
- AV * gp_av; /* array value */
- HV * gp_hv; /* hash value */
- GV * gp_egv; /* effective gv, if *glob */
CV * gp_cv; /* subroutine value */
U32 gp_cvgen; /* generational validity of cached gv_cv */
- I32 gp_lastexpr; /* used by nothing_in_common() */
+ U32 gp_refcnt; /* how many globs point to this? */
+ HV * gp_hv; /* hash value */
+ AV * gp_av; /* array value */
+ CV * gp_form; /* format value */
+ GV * gp_egv; /* effective gv, if *glob */
line_t gp_line; /* line first declared at (for -w) */
- GV * gp_filegv; /* file first declared in (for -w) */
+ HEK * gp_file_hek; /* file first declared in (for -w) */
};
-#if defined(CRIPPLED_CC) && (defined(iAPX286) || defined(M_I286) || defined(I80286))
-#define MICROPORT
+#define GvXPVGV(gv) ((XPVGV*)SvANY(gv))
+
+
+#if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__INTEL_COMPILER)
+# define GvGP(gv) \
+ (*({GV *const _gvgp = (GV *) (gv); \
+ assert(SvTYPE(_gvgp) == SVt_PVGV || SvTYPE(_gvgp) == SVt_PVLV); \
+ assert(isGV_with_GP(_gvgp)); \
+ &((_gvgp)->sv_u.svu_gp);}))
+# define GvFLAGS(gv) \
+ (*({GV *const _gvflags = (GV *) (gv); \
+ assert(SvTYPE(_gvflags) == SVt_PVGV || SvTYPE(_gvflags) == SVt_PVLV); \
+ assert(isGV_with_GP(_gvflags)); \
+ &(GvXPVGV(_gvflags)->xpv_cur);}))
+# define GvSTASH(gv) \
+ (*({ GV * const _gvstash = (GV *) (gv); \
+ assert(isGV_with_GP(_gvstash)); \
+ assert(SvTYPE(_gvstash) == SVt_PVGV || SvTYPE(_gvstash) >= SVt_PVLV); \
+ &(GvXPVGV(_gvstash)->xnv_u.xgv_stash); \
+ }))
+# define GvNAME_HEK(gv) \
+ (*({ GV * const _gvname_hek = (GV *) (gv); \
+ assert(isGV_with_GP(_gvname_hek)); \
+ assert(SvTYPE(_gvname_hek) == SVt_PVGV || SvTYPE(_gvname_hek) >= SVt_PVLV); \
+ assert(!SvVALID(_gvname_hek)); \
+ &(GvXPVGV(_gvname_hek)->xiv_u.xivu_namehek); \
+ }))
+# define GvNAME_get(gv) ({ assert(GvNAME_HEK(gv)); (char *)HEK_KEY(GvNAME_HEK(gv)); })
+# define GvNAMELEN_get(gv) ({ assert(GvNAME_HEK(gv)); HEK_LEN(GvNAME_HEK(gv)); })
+#else
+# define GvGP(gv) ((gv)->sv_u.svu_gp)
+# define GvFLAGS(gv) (GvXPVGV(gv)->xpv_cur)
+# define GvSTASH(gv) (GvXPVGV(gv)->xnv_u.xgv_stash)
+# define GvNAME_HEK(gv) (GvXPVGV(gv)->xiv_u.xivu_namehek)
+# define GvNAME_get(gv) HEK_KEY(GvNAME_HEK(gv))
+# define GvNAMELEN_get(gv) HEK_LEN(GvNAME_HEK(gv))
#endif
-#define GvXPVGV(gv) ((XPVGV*)SvANY(gv))
+#define GvNAME(gv) GvNAME_get(gv)
+#define GvNAMELEN(gv) GvNAMELEN_get(gv)
+
+#define GvASSIGN_GENERATION(gv) (0 + ((XPV*) SvANY(gv))->xpv_len)
+#define GvASSIGN_GENERATION_set(gv,val) \
+ STMT_START { assert(SvTYPE(gv) == SVt_PVGV); \
+ (((XPV*) SvANY(gv))->xpv_len = (val)); } STMT_END
+
+/*
+=head1 GV Functions
+
+=for apidoc Am|SV*|GvSV|GV* gv
+
+Return the SV from the GV.
-#define GvGP(gv) (GvXPVGV(gv)->xgv_gp)
-#define GvNAME(gv) (GvXPVGV(gv)->xgv_name)
-#define GvNAMELEN(gv) (GvXPVGV(gv)->xgv_namelen)
-#define GvSTASH(gv) (GvXPVGV(gv)->xgv_stash)
-#define GvFLAGS(gv) (GvXPVGV(gv)->xgv_flags)
+=cut
+*/
#define GvSV(gv) (GvGP(gv)->gp_sv)
+#ifdef PERL_DONT_CREATE_GVSV
+#define GvSVn(gv) (*(GvGP(gv)->gp_sv ? \
+ &(GvGP(gv)->gp_sv) : \
+ &(GvGP(gv_SVadd(gv))->gp_sv)))
+#else
+#define GvSVn(gv) GvSV(gv)
+#endif
+
#define GvREFCNT(gv) (GvGP(gv)->gp_refcnt)
-#define GvIO(gv) ((gv) && SvTYPE((SV*)gv) == SVt_PVGV ? GvIOp(gv) : 0)
+#define GvIO(gv) ((gv) && SvTYPE((const SV*)gv) == SVt_PVGV && GvGP(gv) ? GvIOp(gv) : NULL)
#define GvIOp(gv) (GvGP(gv)->gp_io)
#define GvIOn(gv) (GvIO(gv) ? GvIOp(gv) : GvIOp(gv_IOadd(gv)))
#define GvFORM(gv) (GvGP(gv)->gp_form)
#define GvAV(gv) (GvGP(gv)->gp_av)
-/* This macro is deprecated. Do not use! */
-#define GvREFCNT_inc(gv) ((GV*)SvREFCNT_inc(gv)) /* DO NOT USE */
-
-#ifdef MICROPORT /* Microport 2.4 hack */
-AV *GvAVn();
-#else
#define GvAVn(gv) (GvGP(gv)->gp_av ? \
GvGP(gv)->gp_av : \
GvGP(gv_AVadd(gv))->gp_av)
-#endif
#define GvHV(gv) ((GvGP(gv))->gp_hv)
-#ifdef MICROPORT /* Microport 2.4 hack */
-HV *GvHVn();
-#else
#define GvHVn(gv) (GvGP(gv)->gp_hv ? \
GvGP(gv)->gp_hv : \
GvGP(gv_HVadd(gv))->gp_hv)
-#endif /* Microport 2.4 hack */
#define GvCV(gv) (GvGP(gv)->gp_cv)
#define GvCVGEN(gv) (GvGP(gv)->gp_cvgen)
-#define GvCVu(gv) (GvGP(gv)->gp_cvgen ? Nullcv : GvGP(gv)->gp_cv)
-
-#define GvLASTEXPR(gv) (GvGP(gv)->gp_lastexpr)
+#define GvCVu(gv) (GvGP(gv)->gp_cvgen ? NULL : GvGP(gv)->gp_cv)
#define GvLINE(gv) (GvGP(gv)->gp_line)
-#define GvFILEGV(gv) (GvGP(gv)->gp_filegv)
+#define GvFILE_HEK(gv) (GvGP(gv)->gp_file_hek)
+#define GvFILE(gv) (GvFILE_HEK(gv) ? HEK_KEY(GvFILE_HEK(gv)) : NULL)
+#define GvFILEGV(gv) (gv_fetchfile(GvFILE(gv)))
#define GvEGV(gv) (GvGP(gv)->gp_egv)
+#define GvEGVx(gv) (isGV_with_GP(gv) ? GvEGV(gv) : NULL)
#define GvENAME(gv) GvNAME(GvEGV(gv) ? GvEGV(gv) : gv)
#define GvESTASH(gv) GvSTASH(GvEGV(gv) ? GvEGV(gv) : gv)
#define GVf_INTRO 0x01
#define GVf_MULTI 0x02
#define GVf_ASSUMECV 0x04
+#define GVf_IN_PAD 0x08
#define GVf_IMPORTED 0xF0
#define GVf_IMPORTED_SV 0x10
#define GVf_IMPORTED_AV 0x20
#define GvIMPORTED_CV_on(gv) (GvFLAGS(gv) |= GVf_IMPORTED_CV)
#define GvIMPORTED_CV_off(gv) (GvFLAGS(gv) &= ~GVf_IMPORTED_CV)
-#define Nullgv Null(GV*)
+#define GvIN_PAD(gv) (GvFLAGS(gv) & GVf_IN_PAD)
+#define GvIN_PAD_on(gv) (GvFLAGS(gv) |= GVf_IN_PAD)
+#define GvIN_PAD_off(gv) (GvFLAGS(gv) &= ~GVf_IN_PAD)
+
+#ifndef PERL_CORE
+# define Nullgv Null(GV*)
+#endif
-#define DM_UID 0x003
-#define DM_RUID 0x001
-#define DM_EUID 0x002
-#define DM_GID 0x030
-#define DM_RGID 0x010
-#define DM_EGID 0x020
-#define DM_DELAY 0x100
+#define DM_RUID 0x001
+#define DM_EUID 0x002
+#define DM_UID (DM_RUID|DM_EUID)
+#define DM_ARRAY_ISA 0x004
+#define DM_RGID 0x010
+#define DM_EGID 0x020
+#define DM_GID (DM_RGID|DM_EGID)
+#define DM_DELAY 0x100
/*
* symbol creation flags, for use in gv_fetchpv() and get_*v()
*/
-#define GV_ADD 0x01 /* add, if symbol not already there */
+#define GV_ADD 0x01 /* add, if symbol not already there
+ For gv_name_set, adding a HEK for the first
+ time, so don't try to free what's there. */
#define GV_ADDMULTI 0x02 /* add, pretending it has been added already */
#define GV_ADDWARN 0x04 /* add, but warn if symbol wasn't already there */
#define GV_ADDINEVAL 0x08 /* add, as though we're doing so within an eval */
#define GV_NOINIT 0x10 /* add, but don't init symbol, if type != PVGV */
-#define GV_ADDOUR 0x20 /* add "our" variable */
+/* This is used by toke.c to avoid turing placeholder constants in the symbol
+ table into full PVGVs with attached constant subroutines. */
+#define GV_NOADD_NOINIT 0x20 /* Don't add the symbol if it's not there.
+ Don't init it if it is there but ! PVGV */
+#define GV_NOEXPAND 0x40 /* Don't expand SvOK() entries to PVGV */
+#define GV_NOTQUAL 0x80 /* A plain symbol name, not qualified with a
+ package (so skip checks for :: and ') */
+#define GV_AUTOLOAD 0x100 /* gv_fetchmethod_flags() should AUTOLOAD */
+#define GV_CROAK 0x200 /* gv_fetchmethod_flags() should croak */
+
+/* SVf_UTF8 (more accurately the return value from SvUTF8) is also valid
+ as a flag to gv_fetch_pvn_flags, so ensure it lies outside this range.
+*/
+
+#define GV_NOADD_MASK (SVf_UTF8|GV_NOADD_NOINIT|GV_NOEXPAND|GV_NOTQUAL)
+/* The bit flags that don't cause gv_fetchpv() to add a symbol if not found */
+
+#define gv_fullname3(sv,gv,prefix) gv_fullname4(sv,gv,prefix,TRUE)
+#define gv_efullname3(sv,gv,prefix) gv_efullname4(sv,gv,prefix,TRUE)
+#define gv_fetchmethod(stash, name) gv_fetchmethod_autoload(stash, name, TRUE)
+
+#define gv_AVadd(gv) gv_add_by_type((gv), SVt_PVAV)
+#define gv_HVadd(gv) gv_add_by_type((gv), SVt_PVHV)
+#define gv_IOadd(gv) gv_add_by_type((gv), SVt_PVIO)
+#define gv_SVadd(gv) gv_add_by_type((gv), SVt_NULL)
+
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */
https://perl5.git.perl.org / perl5.git / blobdiff