/* sv.h
*
* 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
+ * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 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.
#define _SV_HEAD_UNION \
union { \
+ char* svu_pv; /* pointer to malloced string */ \
IV svu_iv; \
UV svu_uv; \
SV* svu_rv; /* pointer to another SV */ \
- char* svu_pv; /* pointer to malloced string */ \
SV** svu_array; \
HE** svu_hash; \
GP* svu_gp; \
/* RV upwards. However, SVf_ROK and SVp_IOK are exclusive */
#define SVprv_WEAKREF 0x80000000 /* Weak reference */
-#define _XPV_ALLOCATED_HEAD \
- STRLEN xpv_cur; /* length of svu_pv as a C string */ \
- STRLEN xpv_len /* allocated size */
-
#define _XPV_HEAD \
union _xnvu xnv_u; \
- _XPV_ALLOCATED_HEAD
+ STRLEN xpv_cur; /* length of svu_pv as a C string */ \
+ STRLEN xpv_len /* allocated size */
union _xnvu {
NV xnv_nv; /* numeric value, if any */
_XPV_HEAD;
};
-typedef struct {
- _XPV_ALLOCATED_HEAD;
-} xpv_allocated;
-
struct xpviv {
_XPV_HEAD;
union _xivu xiv_u;
};
-typedef struct {
- _XPV_ALLOCATED_HEAD;
- union _xivu xiv_u;
-} xpviv_allocated;
-
#define xiv_iv xiv_u.xivu_iv
struct xpvuv {
union _xmgu xmg_u; \
HV* xmg_stash /* class package */
-/* These structure must match the beginning of struct xpvhv in hv.h. */
+/* This structure must match the beginning of struct xpvhv in hv.h. */
struct xpvmg {
_XPV_HEAD;
_XPVMG_HEAD;
_XPVCV_COMMON;
};
-typedef struct {
- _XPV_ALLOCATED_HEAD;
- _XPVMG_HEAD;
- _XPVCV_COMMON;
-} xpvfm_allocated;
-
#define _XPVIO_TAIL \
PerlIO * xio_ifp; /* ifp and ofp are normally the same */ \
PerlIO * xio_ofp; /* but sockets need separate streams */ \
DIR * xiou_dirp; /* for opendir, readdir, etc */ \
void * xiou_any; /* for alignment */ \
} xio_dirpu; \
- IV xio_lines; /* $. */ \
+ /* IV xio_lines is now in IVX $. */ \
IV xio_page; /* $% */ \
IV xio_page_len; /* $= */ \
IV xio_lines_left; /* $- */ \
_XPVIO_TAIL;
};
-typedef struct {
- _XPV_ALLOCATED_HEAD;
- _XPVMG_HEAD;
- _XPVIO_TAIL;
-} xpvio_allocated;
-
#define xio_dirp xio_dirpu.xiou_dirp
#define xio_any xio_dirpu.xiou_any
=for apidoc Am|U32|SvNIOKp|SV* sv
Returns a U32 value indicating whether the SV contains a number, integer or
-double. Checks the B<private> setting. Use C<SvNIOK>.
+double. Checks the B<private> setting. Use C<SvNIOK> instead.
=for apidoc Am|void|SvNIOK_off|SV* sv
Unsets the NV/IV status of an SV.
=for apidoc Am|U32|SvOK|SV* sv
-Returns a U32 value indicating whether the value is an SV. It also tells
-whether the value is defined or not.
+Returns a U32 value indicating whether the value is defined. This is
+only meaningful for scalars.
=for apidoc Am|U32|SvIOKp|SV* sv
Returns a U32 value indicating whether the SV contains an integer. Checks
-the B<private> setting. Use C<SvIOK>.
+the B<private> setting. Use C<SvIOK> instead.
=for apidoc Am|U32|SvNOKp|SV* sv
Returns a U32 value indicating whether the SV contains a double. Checks the
-B<private> setting. Use C<SvNOK>.
+B<private> setting. Use C<SvNOK> instead.
=for apidoc Am|U32|SvPOKp|SV* sv
Returns a U32 value indicating whether the SV contains a character string.
-Checks the B<private> setting. Use C<SvPOK>.
+Checks the B<private> setting. Use C<SvPOK> instead.
=for apidoc Am|U32|SvIOK|SV* sv
Returns a U32 value indicating whether the SV contains an integer.
#endif
/*
-=for apidoc Am|char*|SvGAMAGIC|SV* sv
+=for apidoc Am|U32|SvGAMAGIC|SV* sv
Returns true if the SV has get magic or overloading. If either is true then
the scalar is active data, and has the potential to return a new value every
#define SvGAMAGIC(sv) (SvGMAGICAL(sv) || SvAMAGIC(sv))
-#define Gv_AMG(stash) (PL_amagic_generation && Gv_AMupdate(stash))
+#define Gv_AMG(stash) (PL_amagic_generation && Gv_AMupdate(stash, FALSE))
#define SvWEAKREF(sv) ((SvFLAGS(sv) & (SVf_ROK|SVprv_WEAKREF)) \
== (SVf_ROK|SVprv_WEAKREF))
# define SvUVX(sv) (0 + ((XPVUV*) SvANY(sv))->xuv_uv)
# define SvNVX(sv) (-0.0 + ((XPVNV*) SvANY(sv))->xnv_u.xnv_nv)
# define SvRV(sv) (0 + (sv)->sv_u.svu_rv)
+# define SvRV_const(sv) (0 + (sv)->sv_u.svu_rv)
/* Don't test the core XS code yet. */
# if defined (PERL_CORE) && PERL_DEBUG_COW > 1
# define SvPVX(sv) (0 + (assert(!SvREADONLY(sv)), (sv)->sv_u.svu_pv))
# if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
/* These get expanded inside other macros that already use a variable _sv */
# define SvPVX(sv) \
- (*({ const SV *const _svpvx = (const SV *)(sv); \
+ (*({ SV *const _svpvx = MUTABLE_SV(sv); \
assert(SvTYPE(_svpvx) >= SVt_PV); \
assert(SvTYPE(_svpvx) != SVt_PVAV); \
assert(SvTYPE(_svpvx) != SVt_PVHV); \
assert(SvTYPE(_svivx) != SVt_PVHV); \
assert(SvTYPE(_svivx) != SVt_PVCV); \
assert(SvTYPE(_svivx) != SVt_PVFM); \
+ assert(SvTYPE(_svivx) != SVt_PVIO); \
assert(!isGV_with_GP(_svivx)); \
&(((XPVIV*) MUTABLE_PTR(SvANY(_svivx)))->xiv_iv); \
}))
assert(SvTYPE(_svuvx) != SVt_PVHV); \
assert(SvTYPE(_svuvx) != SVt_PVCV); \
assert(SvTYPE(_svuvx) != SVt_PVFM); \
+ assert(SvTYPE(_svuvx) != SVt_PVIO); \
assert(!isGV_with_GP(_svuvx)); \
&(((XPVUV*) MUTABLE_PTR(SvANY(_svuvx)))->xuv_uv); \
}))
&(((XPVNV*) MUTABLE_PTR(SvANY(_svnvx)))->xnv_u.xnv_nv); \
}))
# define SvRV(sv) \
- (*({ const SV *const _svrv = (const SV *)(sv); \
+ (*({ SV *const _svrv = MUTABLE_SV(sv); \
assert(SvTYPE(_svrv) >= SVt_PV || SvTYPE(_svrv) == SVt_IV); \
assert(SvTYPE(_svrv) != SVt_PVAV); \
assert(SvTYPE(_svrv) != SVt_PVHV); \
assert(!isGV_with_GP(_svrv)); \
&((_svrv)->sv_u.svu_rv); \
}))
+# define SvRV_const(sv) \
+ ({ const SV *const _svrv = (const SV *)(sv); \
+ assert(SvTYPE(_svrv) >= SVt_PV || SvTYPE(_svrv) == SVt_IV); \
+ assert(SvTYPE(_svrv) != SVt_PVAV); \
+ assert(SvTYPE(_svrv) != SVt_PVHV); \
+ assert(SvTYPE(_svrv) != SVt_PVCV); \
+ assert(SvTYPE(_svrv) != SVt_PVFM); \
+ assert(!isGV_with_GP(_svrv)); \
+ (_svrv)->sv_u.svu_rv; \
+ })
# define SvMAGIC(sv) \
(*({ const SV *const _svmagic = (const SV *)(sv); \
assert(SvTYPE(_svmagic) >= SVt_PVMG); \
# define SvUVX(sv) ((XPVUV*) SvANY(sv))->xuv_uv
# define SvNVX(sv) ((XPVNV*) SvANY(sv))->xnv_u.xnv_nv
# define SvRV(sv) ((sv)->sv_u.svu_rv)
+# define SvRV_const(sv) (0 + (sv)->sv_u.svu_rv)
# define SvMAGIC(sv) ((XPVMG*) SvANY(sv))->xmg_u.xmg_magic
# define SvSTASH(sv) ((XPVMG*) SvANY(sv))->xmg_stash
# endif
#define IoOFP(sv) ((XPVIO*) SvANY(sv))->xio_ofp
#define IoDIRP(sv) ((XPVIO*) SvANY(sv))->xio_dirp
#define IoANY(sv) ((XPVIO*) SvANY(sv))->xio_any
-#define IoLINES(sv) ((XPVIO*) SvANY(sv))->xio_lines
+#define IoLINES(sv) ((XPVIO*) SvANY(sv))->xiv_u.xivu_iv
#define IoPAGE(sv) ((XPVIO*) SvANY(sv))->xio_page
#define IoPAGE_LEN(sv) ((XPVIO*) SvANY(sv))->xio_page_len
#define IoLINES_LEFT(sv)((XPVIO*) SvANY(sv))->xio_lines_left
=for apidoc Am|bool|SvTRUE|SV* sv
Returns a boolean indicating whether Perl would evaluate the SV as true or
-false, defined or undefined. Does not handle 'get' magic.
+false. See SvOK() for a defined/undefined test. Does not handle 'get' magic.
=for apidoc Am|char*|SvPVutf8_force|SV* sv|STRLEN len
Like C<SvPV_force>, but converts sv to utf8 first if necessary.
=for apidoc Am|void|sv_catsv_nomg|SV* dsv|SV* ssv
Like C<sv_catsv> but doesn't process magic.
+=for apidoc Amdb|STRLEN|sv_utf8_upgrade_nomg|NN SV *sv
+
+Like sv_utf8_upgrade, but doesn't do magic on C<sv>
+
=cut
*/
#define SV_COW_OTHER_PVS 1024
/* Make sv_2pv_flags return NULL if something is undefined. */
#define SV_UNDEF_RETURNS_NULL 2048
+/* Tell sv_utf8_upgrade() to not check to see if an upgrade is really needed.
+ * This is used when the caller has already determined it is, and avoids
+ * redundant work */
+#define SV_FORCE_UTF8_UPGRADE 4096
/* The core is safe for this COW optimisation. XS code on CPAN may not be.
So only default to doing the COW setup if we're in the core.
#define sv_pvbyte(sv) SvPVbyte_nolen(sv)
#define sv_pvn_force_nomg(sv, lp) sv_pvn_force_flags(sv, lp, 0)
+#define sv_utf8_upgrade_flags(sv, flags) sv_utf8_upgrade_flags_grow(sv, flags, 0)
#define sv_utf8_upgrade_nomg(sv) sv_utf8_upgrade_flags(sv, 0)
#define sv_catpvn_nomg(dsv, sstr, slen) sv_catpvn_flags(dsv, sstr, slen, 0)
#define sv_setsv(dsv, ssv) \
} \
} STMT_END
#endif
+
+#define newIO() MUTABLE_IO(newSV_type(SVt_PVIO))
+
/*
* Local variables:
* c-indentation-style: bsd
https://perl5.git.perl.org / perl5.git / blobdiff