*
*/
-/* This structure must the beginning of XPVFM in sv.h */
+/* This structure must match the beginning of XPVFM in sv.h */
struct xpvcv {
_XPV_HEAD;
- _XPVMG_HEAD;
_XPVCV_COMMON;
};
-typedef struct {
- _XPV_ALLOCATED_HEAD;
- _XPVMG_HEAD;
- _XPVCV_COMMON;
-} xpvcv_allocated;
-
/*
=head1 Handy Values
=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.
+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.
+For more information, see L<perlguts>.
+
+This also has a special use with XS AUTOLOAD subs.
+See L<perlguts/Autoloading with XSUBs>.
=cut
*/
# define Nullcv Null(CV*)
#endif
-#define CvSTASH(sv) ((XPVCV*)SvANY(sv))->xcv_stash
-#define CvSTART(sv) ((XPVCV*)SvANY(sv))->xcv_start_u.xcv_start
-#define CvROOT(sv) ((XPVCV*)SvANY(sv))->xcv_root_u.xcv_root
-#define CvXSUB(sv) ((XPVCV*)SvANY(sv))->xcv_root_u.xcv_xsub
-#define CvXSUBANY(sv) ((XPVCV*)SvANY(sv))->xcv_start_u.xcv_xsubany
-#define CvGV(sv) ((XPVCV*)SvANY(sv))->xcv_gv
-#define CvFILE(sv) ((XPVCV*)SvANY(sv))->xcv_file
+#define CvSTASH(sv) (0+((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_stash)
+#define CvSTASH_set(cv,st) Perl_cvstash_set(aTHX_ cv, st)
+#define CvSTART(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_start_u.xcv_start
+#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((const CV *)(sv))
+#define CvGV_set(cv,gv) Perl_cvgv_set(aTHX_ cv, gv)
+#define CvFILE(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_file
#ifdef USE_ITHREADS
-# define CvFILE_set_from_cop(sv, cop) (CvFILE(sv) = savepv(CopFILE(cop)))
+# define CvFILE_set_from_cop(sv, cop) \
+ (CvFILE(sv) = savepv(CopFILE(cop)), CvDYNFILE_on(sv))
#else
-# define CvFILE_set_from_cop(sv, cop) (CvFILE(sv) = CopFILE(cop))
+# define CvFILE_set_from_cop(sv, cop) \
+ (CvFILE(sv) = CopFILE(cop), CvDYNFILE_off(sv))
#endif
#define CvFILEGV(sv) (gv_fetchfile(CvFILE(sv)))
-#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
-# define CvDEPTH(sv) (*({const CV *_cvdepth = (CV *)sv; \
- assert(SvTYPE(_cvdepth) == SVt_PVCV); \
- &((XPVCV*)SvANY(_cvdepth))->xiv_u.xivu_i32; \
- }))
-#else
-# define CvDEPTH(sv) ((XPVCV*)SvANY(sv))->xiv_u.xivu_i32
-#endif
-#define CvPADLIST(sv) ((XPVCV*)SvANY(sv))->xcv_padlist
-#define CvOUTSIDE(sv) ((XPVCV*)SvANY(sv))->xcv_outside
-#define CvFLAGS(sv) ((XPVCV*)SvANY(sv))->xcv_flags
-#define CvOUTSIDE_SEQ(sv) ((XPVCV*)SvANY(sv))->xcv_outside_seq
+#define CvDEPTH(sv) (*S_CvDEPTHp((const CV *)sv))
+#define CvPADLIST(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_padlist
+#define CvOUTSIDE(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_outside
+#define CvFLAGS(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_flags
+#define CvOUTSIDE_SEQ(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_outside_seq
+
+/* 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 \
+ )
+#define CvPROTOLEN(sv) \
+ ( \
+ 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_LOCKED 0x0002 /* CV locks itself or first arg on entry */
-#define CVf_LVALUE 0x0004 /* CV return value can be used as lvalue */
+#define CVf_LVALUE 0x0002 /* CV return value can be used as lvalue */
+#define CVf_CONST 0x0004 /* inlinable sub */
+#define CVf_ISXSUB 0x0008 /* CV is an XSUB, not pure perl. */
#define CVf_WEAKOUTSIDE 0x0010 /* CvOUTSIDE isn't ref counted */
#define CVf_CLONE 0x0020 /* anon CV uses external lexicals */
#define CVf_CLONED 0x0040 /* a clone of one of those */
-#define CVf_ANON 0x0080 /* CvGV() can't be trusted */
+#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). */
#define CVf_NODEBUG 0x0200 /* no DB::sub indirection for this CV
(esp. useful for special XSUBs) */
-#define CVf_CONST 0x0400 /* inlinable sub */
-#define CVf_ISXSUB 0x0800 /* CV is an XSUB, not pure perl. */
+#define CVf_CVGV_RC 0x0400 /* CvGV is reference counted */
+#ifdef PERL_CORE
+# define CVf_SLABBED 0x0800 /* Holds refcount on op slab */
+#endif
+#define CVf_DYNFILE 0x1000 /* The filename isn't static */
+#define CVf_AUTOLOAD 0x2000 /* SvPVX contains AUTOLOADed sub name */
+#define CVf_HASEVAL 0x4000 /* contains string eval */
+#define CVf_NAMED 0x8000 /* Has a name HEK */
/* This symbol for optimised communication between toke.c and op.c: */
-#define CVf_BUILTIN_ATTRS (CVf_METHOD|CVf_LOCKED|CVf_LVALUE)
+#define CVf_BUILTIN_ATTRS (CVf_METHOD|CVf_LVALUE)
#define CvCLONE(cv) (CvFLAGS(cv) & CVf_CLONE)
#define CvCLONE_on(cv) (CvFLAGS(cv) |= CVf_CLONE)
#define CvANON_on(cv) (CvFLAGS(cv) |= CVf_ANON)
#define CvANON_off(cv) (CvFLAGS(cv) &= ~CVf_ANON)
+/* CvEVAL or CvSPECIAL */
#define CvUNIQUE(cv) (CvFLAGS(cv) & CVf_UNIQUE)
#define CvUNIQUE_on(cv) (CvFLAGS(cv) |= CVf_UNIQUE)
#define CvUNIQUE_off(cv) (CvFLAGS(cv) &= ~CVf_UNIQUE)
#define CvMETHOD_on(cv) (CvFLAGS(cv) |= CVf_METHOD)
#define CvMETHOD_off(cv) (CvFLAGS(cv) &= ~CVf_METHOD)
-#define CvLOCKED(cv) (CvFLAGS(cv) & CVf_LOCKED)
-#define CvLOCKED_on(cv) (CvFLAGS(cv) |= CVf_LOCKED)
-#define CvLOCKED_off(cv) (CvFLAGS(cv) &= ~CVf_LOCKED)
-
#define CvLVALUE(cv) (CvFLAGS(cv) & CVf_LVALUE)
#define CvLVALUE_on(cv) (CvFLAGS(cv) |= CVf_LVALUE)
#define CvLVALUE_off(cv) (CvFLAGS(cv) &= ~CVf_LVALUE)
+/* eval or PL_main_cv */
#define CvEVAL(cv) (CvUNIQUE(cv) && !SvFAKE(cv))
#define CvEVAL_on(cv) (CvUNIQUE_on(cv),SvFAKE_off(cv))
#define CvEVAL_off(cv) CvUNIQUE_off(cv)
#define CvISXSUB_on(cv) (CvFLAGS(cv) |= CVf_ISXSUB)
#define CvISXSUB_off(cv) (CvFLAGS(cv) &= ~CVf_ISXSUB)
+#define CvCVGV_RC(cv) (CvFLAGS(cv) & CVf_CVGV_RC)
+#define CvCVGV_RC_on(cv) (CvFLAGS(cv) |= CVf_CVGV_RC)
+#define CvCVGV_RC_off(cv) (CvFLAGS(cv) &= ~CVf_CVGV_RC)
+
+#ifdef PERL_CORE
+# define CvSLABBED(cv) (CvFLAGS(cv) & CVf_SLABBED)
+# define CvSLABBED_on(cv) (CvFLAGS(cv) |= CVf_SLABBED)
+# define CvSLABBED_off(cv) (CvFLAGS(cv) &= ~CVf_SLABBED)
+#endif
+
+#define CvDYNFILE(cv) (CvFLAGS(cv) & CVf_DYNFILE)
+#define CvDYNFILE_on(cv) (CvFLAGS(cv) |= CVf_DYNFILE)
+#define CvDYNFILE_off(cv) (CvFLAGS(cv) &= ~CVf_DYNFILE)
+
+#define CvAUTOLOAD(cv) (CvFLAGS(cv) & CVf_AUTOLOAD)
+#define CvAUTOLOAD_on(cv) (CvFLAGS(cv) |= CVf_AUTOLOAD)
+#define CvAUTOLOAD_off(cv) (CvFLAGS(cv) &= ~CVf_AUTOLOAD)
+
+#define CvHASEVAL(cv) (CvFLAGS(cv) & CVf_HASEVAL)
+#define CvHASEVAL_on(cv) (CvFLAGS(cv) |= CVf_HASEVAL)
+#define CvHASEVAL_off(cv) (CvFLAGS(cv) &= ~CVf_HASEVAL)
+
+#define CvNAMED(cv) (CvFLAGS(cv) & CVf_NAMED)
+#define CvNAMED_on(cv) (CvFLAGS(cv) |= CVf_NAMED)
+#define CvNAMED_off(cv) (CvFLAGS(cv) &= ~CVf_NAMED)
+
/* Flags for newXS_flags */
#define XS_DYNAMIC_FILENAME 0x01 /* The filename isn't static */
+PERL_STATIC_INLINE GV *
+S_CvGV(const CV *sv)
+{
+ return CvNAMED(sv)
+ ? 0
+ : ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_gv_u.xcv_gv;
+}
+PERL_STATIC_INLINE HEK *
+CvNAME_HEK(CV *sv)
+{
+ return CvNAMED(sv)
+ ? ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_gv_u.xcv_hek
+ : 0;
+}
+/* This lowers the refernce 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) \
+ )
+
/*
=head1 CV reference counts and CvOUTSIDE
=cut
*/
+typedef OP *(*Perl_call_checker)(pTHX_ OP *, GV *, SV *);
+
/*
* Local variables:
* c-indentation-style: bsd
* c-basic-offset: 4
- * indent-tabs-mode: t
+ * indent-tabs-mode: nil
* End:
*
- * ex: set ts=8 sts=4 sw=4 noet:
+ * ex: set ts=8 sts=4 sw=4 et:
*/