};
/*
-=head1 Handy Values
+=for apidoc Ayh||CV
-=for apidoc AmU||Nullcv
+=for apidoc ADmnU||Nullcv
Null CV pointer.
(deprecated - use C<(CV *)NULL> instead)
-=head1 CV Manipulation Functions
-
-This section documents functions to manipulate CVs which are code-values,
-or subroutines. For more information, see L<perlguts>.
-
=for apidoc Am|HV*|CvSTASH|CV* cv
Returns the stash of the CV. A stash is the symbol table hash, containing
the package-scoped variables in the package where the subroutine was defined.
#define CvROOT(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_root_u.xcv_root
#define CvXSUB(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_root_u.xcv_xsub
#define CvXSUBANY(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_start_u.xcv_xsubany
-#define CvGV(sv) S_CvGV(aTHX_ (CV *)(sv))
+#define CvGV(sv) Perl_CvGV(aTHX_ (CV *)(sv))
#define CvGV_set(cv,gv) Perl_cvgv_set(aTHX_ cv, gv)
#define CvHASGV(cv) cBOOL(SvANY(cv)->xcv_gv_u.xcv_gv)
#define CvFILE(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_file
(CvFILE(sv) = CopFILE(cop), CvDYNFILE_off(sv))
#endif
#define CvFILEGV(sv) (gv_fetchfile(CvFILE(sv)))
-#define CvDEPTH(sv) (*S_CvDEPTHp((const CV *)sv))
+#define CvDEPTH(sv) (*Perl_CvDEPTH((const CV *)sv))
/* For use when you only have a XPVCV*, not a real CV*.
- Must be assert protected as in S_CvDEPTHp before use. */
+ Must be assert protected as in Perl_CvDEPTH before use. */
#define CvDEPTHunsafe(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_depth
/* these CvPADLIST/CvRESERVED asserts can be reverted one day, once stabilized */
#define CvPADLIST(sv) (*(assert_(!CvISXSUB((CV*)(sv))) \
- &(((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_padlist_u.xcv_padlist)))
+ &(((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_padlist_u.xcv_padlist)))
/* CvPADLIST_set is not public API, it can be removed one day, once stabilized */
#ifdef DEBUGGING
-# define CvPADLIST_set(sv, padlist) Perl_set_padlist(aTHX_ (CV*)sv, padlist)
+# define CvPADLIST_set(sv, padlist) Perl_set_padlist((CV*)sv, padlist)
#else
# define CvPADLIST_set(sv, padlist) (CvPADLIST(sv) = (padlist))
#endif
#define CvHSCXT(sv) *(assert_(CvISXSUB((CV*)(sv))) \
- &(((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_padlist_u.xcv_hscxt))
+ &(((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_padlist_u.xcv_hscxt))
#ifdef DEBUGGING
# if PTRSIZE == 8
# define PoisonPADLIST(sv) \
# error unknown pointer size
# endif
#else
-# define PoisonPADLIST(sv)
+# define PoisonPADLIST(sv) NOOP
#endif
#define CvOUTSIDE(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_outside
/* These two are sometimes called on non-CVs */
#define CvPROTO(sv) \
- ( \
- SvPOK(sv) \
- ? SvTYPE(sv) == SVt_PVCV && CvAUTOLOAD(sv) \
- ? SvEND(sv)+1 : SvPVX_const(sv) \
- : NULL \
- )
+ ( \
+ SvPOK(sv) \
+ ? SvTYPE(sv) == SVt_PVCV && CvAUTOLOAD(sv) \
+ ? SvEND(sv)+1 : SvPVX_const(sv) \
+ : NULL \
+ )
#define CvPROTOLEN(sv) \
- ( \
- SvPOK(sv) \
- ? SvTYPE(sv) == SVt_PVCV && CvAUTOLOAD(sv) \
- ? SvLEN(sv)-SvCUR(sv)-2 \
- : SvCUR(sv) \
- : 0 \
- )
+ ( \
+ SvPOK(sv) \
+ ? SvTYPE(sv) == SVt_PVCV && CvAUTOLOAD(sv) \
+ ? SvLEN(sv)-SvCUR(sv)-2 \
+ : SvCUR(sv) \
+ : 0 \
+ )
#define CVf_METHOD 0x0001 /* CV is explicitly marked as a method */
#define CVf_LVALUE 0x0002 /* CV return value can be used as lvalue */
#define CVf_CLONED 0x0040 /* a clone of one of those */
#define CVf_ANON 0x0080 /* CV is not pointed to by a GV */
#define CVf_UNIQUE 0x0100 /* sub is only called once (eg PL_main_cv,
- * require, eval). */
+ * require, eval). */
#define CVf_NODEBUG 0x0200 /* no DB::sub indirection for this CV
- (esp. useful for special XSUBs) */
+ (esp. useful for special XSUBs) */
#define CVf_CVGV_RC 0x0400 /* CvGV is reference counted */
-#ifdef PERL_CORE
+#if defined(PERL_CORE) || defined(PERL_EXT)
# define CVf_SLABBED 0x0800 /* Holds refcount on op slab */
#endif
-#define CVf_DYNFILE 0x1000 /* The filename isn't static */
+#define CVf_DYNFILE 0x1000 /* The filename is malloced */
#define CVf_AUTOLOAD 0x2000 /* SvPVX contains AUTOLOADed sub name */
#define CVf_HASEVAL 0x4000 /* contains string eval */
#define CVf_NAMED 0x8000 /* Has a name HEK */
#define CVf_LEXICAL 0x10000 /* Omit package from name */
+#define CVf_ANONCONST 0x20000 /* :const - create anonconst op */
/* This symbol for optimised communication between toke.c and op.c: */
-#define CVf_BUILTIN_ATTRS (CVf_METHOD|CVf_LVALUE)
+#define CVf_BUILTIN_ATTRS (CVf_METHOD|CVf_LVALUE|CVf_ANONCONST)
#define CvCLONE(cv) (CvFLAGS(cv) & CVf_CLONE)
#define CvCLONE_on(cv) (CvFLAGS(cv) |= CVf_CLONE)
#define CvLEXICAL_on(cv) (CvFLAGS(cv) |= CVf_LEXICAL)
#define CvLEXICAL_off(cv) (CvFLAGS(cv) &= ~CVf_LEXICAL)
+#define CvANONCONST(cv) (CvFLAGS(cv) & CVf_ANONCONST)
+#define CvANONCONST_on(cv) (CvFLAGS(cv) |= CVf_ANONCONST)
+#define CvANONCONST_off(cv) (CvFLAGS(cv) &= ~CVf_ANONCONST)
+
/* Flags for newXS_flags */
#define XS_DYNAMIC_FILENAME 0x01 /* The filename isn't static */
CvNAME_HEK(CV *sv)
{
return CvNAMED(sv)
- ? ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_gv_u.xcv_hek
- : 0;
+ ? ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_gv_u.xcv_hek
+ : 0;
}
-/* This lowers the refernce count of the previous value, but does *not*
+
+/* helper for the common pattern:
+ CvNAMED(sv) ? CvNAME_HEK((CV *)sv) : GvNAME_HEK(CvGV(sv))
+*/
+#define CvGvNAME_HEK(sv) ( \
+ CvNAMED((CV*)sv) ? \
+ ((XPVCV*)MUTABLE_PTR(SvANY((SV*)sv)))->xcv_gv_u.xcv_hek\
+ : GvNAME_HEK(CvGV( (SV*) sv)) \
+ )
+
+/* This lowers the reference count of the previous value, but does *not*
increment the reference count of the new value. */
#define CvNAME_HEK_set(cv, hek) ( \
- CvNAME_HEK((CV *)(cv)) \
- ? unshare_hek(SvANY((CV *)(cv))->xcv_gv_u.xcv_hek) \
- : (void)0, \
- ((XPVCV*)MUTABLE_PTR(SvANY(cv)))->xcv_gv_u.xcv_hek = (hek), \
- CvNAMED_on(cv) \
+ CvNAME_HEK((CV *)(cv)) \
+ ? unshare_hek(SvANY((CV *)(cv))->xcv_gv_u.xcv_hek) \
+ : (void)0, \
+ ((XPVCV*)MUTABLE_PTR(SvANY(cv)))->xcv_gv_u.xcv_hek = (hek), \
+ CvNAMED_on(cv) \
)
/*
-=head1 CV reference counts and CvOUTSIDE
=for apidoc m|bool|CvWEAKOUTSIDE|CV *cv
that do not refer to any lexicals outside that sub). In this case, the
anonymous prototype is shared rather than being cloned. This has the
consequence that the parent may be freed while there are still active
-children, eg
+children, I<e.g.>,
BEGIN { $a = sub { eval '$x' } }
#endif
/*
- * Local variables:
- * c-indentation-style: bsd
- * c-basic-offset: 4
- * indent-tabs-mode: nil
- * End:
- *
* ex: set ts=8 sts=4 sw=4 et:
*/
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