--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/perl-5.22.2/cv.h	Sat May 14 14:54:38 2016 +0000
@@ -0,0 +1,314 @@
+/*    cv.h
+ *
+ *    Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 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.
+ *
+ */
+
+/* This structure must match the beginning of XPVFM in sv.h  */
+
+struct xpvcv {
+    _XPV_HEAD;
+    _XPVCV_COMMON;
+};
+
+/*
+=head1 Handy Values
+
+=for apidoc AmU||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.
+For more information, see L<perlguts>.
+
+This also has a special use with XS AUTOLOAD subs.
+See L<perlguts/Autoloading with XSUBs>.
+
+=cut
+*/
+
+#ifndef PERL_CORE
+#  define Nullcv Null(CV*)
+#endif
+
+#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(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
+#ifdef USE_ITHREADS
+#  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), CvDYNFILE_off(sv))
+#endif
+#define CvFILEGV(sv)	(gv_fetchfile(CvFILE(sv)))
+#define CvDEPTH(sv)	(*S_CvDEPTHp((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. */
+#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)))
+/* CvPADLIST_set is not public API, it can be removed one day, once stabilized */
+#ifdef DEBUGGING
+#  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))
+#ifdef DEBUGGING
+#  if PTRSIZE == 8
+#    define PoisonPADLIST(sv) \
+        (((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_padlist_u.xcv_padlist = (PADLIST *)UINT64_C(0xEFEFEFEFEFEFEFEF))
+#  elif PTRSIZE == 4
+#    define PoisonPADLIST(sv) \
+        (((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_padlist_u.xcv_padlist = (PADLIST *)0xEFEFEFEF)
+#  else
+#    error unknown pointer size
+#  endif
+#else
+#  define PoisonPADLIST(sv) NOOP
+#endif
+
+#define CvOUTSIDE(sv)	  ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_outside
+#define CvOUTSIDE_SEQ(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_outside_seq
+#define CvFLAGS(sv)	  ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_flags
+
+/* 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_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	/* 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_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 */
+#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|CVf_ANONCONST)
+
+#define CvCLONE(cv)		(CvFLAGS(cv) & CVf_CLONE)
+#define CvCLONE_on(cv)		(CvFLAGS(cv) |= CVf_CLONE)
+#define CvCLONE_off(cv)		(CvFLAGS(cv) &= ~CVf_CLONE)
+
+#define CvCLONED(cv)		(CvFLAGS(cv) & CVf_CLONED)
+#define CvCLONED_on(cv)		(CvFLAGS(cv) |= CVf_CLONED)
+#define CvCLONED_off(cv)	(CvFLAGS(cv) &= ~CVf_CLONED)
+
+#define CvANON(cv)		(CvFLAGS(cv) & CVf_ANON)
+#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 CvNODEBUG(cv)		(CvFLAGS(cv) & CVf_NODEBUG)
+#define CvNODEBUG_on(cv)	(CvFLAGS(cv) |= CVf_NODEBUG)
+#define CvNODEBUG_off(cv)	(CvFLAGS(cv) &= ~CVf_NODEBUG)
+
+#define CvMETHOD(cv)		(CvFLAGS(cv) & CVf_METHOD)
+#define CvMETHOD_on(cv)		(CvFLAGS(cv) |= CVf_METHOD)
+#define CvMETHOD_off(cv)	(CvFLAGS(cv) &= ~CVf_METHOD)
+
+#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)
+
+/* BEGIN|CHECK|INIT|UNITCHECK|END */
+#define CvSPECIAL(cv)		(CvUNIQUE(cv) && SvFAKE(cv))
+#define CvSPECIAL_on(cv)	(CvUNIQUE_on(cv),SvFAKE_on(cv))
+#define CvSPECIAL_off(cv)	(CvUNIQUE_off(cv),SvFAKE_off(cv))
+
+#define CvCONST(cv)		(CvFLAGS(cv) & CVf_CONST)
+#define CvCONST_on(cv)		(CvFLAGS(cv) |= CVf_CONST)
+#define CvCONST_off(cv)		(CvFLAGS(cv) &= ~CVf_CONST)
+
+#define CvWEAKOUTSIDE(cv)	(CvFLAGS(cv) & CVf_WEAKOUTSIDE)
+#define CvWEAKOUTSIDE_on(cv)	(CvFLAGS(cv) |= CVf_WEAKOUTSIDE)
+#define CvWEAKOUTSIDE_off(cv)	(CvFLAGS(cv) &= ~CVf_WEAKOUTSIDE)
+
+#define CvISXSUB(cv)		(CvFLAGS(cv) & CVf_ISXSUB)
+#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)
+
+#define CvLEXICAL(cv)		(CvFLAGS(cv) & CVf_LEXICAL)
+#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  */
+
+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
+
+=for apidoc m|bool|CvWEAKOUTSIDE|CV *cv
+
+Each CV has a pointer, C<CvOUTSIDE()>, to its lexically enclosing
+CV (if any).  Because pointers to anonymous sub prototypes are
+stored in C<&> pad slots, it is a possible to get a circular reference,
+with the parent pointing to the child and vice-versa.  To avoid the
+ensuing memory leak, we do not increment the reference count of the CV
+pointed to by C<CvOUTSIDE> in the I<one specific instance> that the parent
+has a C<&> pad slot pointing back to us.  In this case, we set the
+C<CvWEAKOUTSIDE> flag in the child.  This allows us to determine under what
+circumstances we should decrement the refcount of the parent when freeing
+the child.
+
+There is a further complication with non-closure anonymous subs (i.e. those
+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
+
+    BEGIN { $a = sub { eval '$x' } }
+
+In this case, the BEGIN is freed immediately after execution since there
+are no active references to it: the anon sub prototype has
+C<CvWEAKOUTSIDE> set since it's not a closure, and $a points to the same
+CV, so it doesn't contribute to BEGIN's refcount either.  When $a is
+executed, the C<eval '$x'> causes the chain of C<CvOUTSIDE>s to be followed,
+and the freed BEGIN is accessed.
+
+To avoid this, whenever a CV and its associated pad is freed, any
+C<&> entries in the pad are explicitly removed from the pad, and if the
+refcount of the pointed-to anon sub is still positive, then that
+child's C<CvOUTSIDE> is set to point to its grandparent.  This will only
+occur in the single specific case of a non-closure anon prototype
+having one or more active references (such as C<$a> above).
+
+One other thing to consider is that a CV may be merely undefined
+rather than freed, eg C<undef &foo>.  In this case, its refcount may
+not have reached zero, but we still delete its pad and its C<CvROOT> etc.
+Since various children may still have their C<CvOUTSIDE> pointing at this
+undefined CV, we keep its own C<CvOUTSIDE> for the time being, so that
+the chain of lexical scopes is unbroken.  For example, the following
+should print 123:
+
+    my $x = 123;
+    sub tmp { sub { eval '$x' } }
+    my $a = tmp();
+    undef &tmp;
+    print  $a->();
+
+=cut
+*/
+
+typedef OP *(*Perl_call_checker)(pTHX_ OP *, GV *, SV *);
+
+#define CALL_CHECKER_REQUIRE_GV	MGf_REQUIRE_GV
+
+#define CV_NAME_NOTQUAL		1
+
+#ifdef PERL_CORE
+# define CV_UNDEF_KEEP_NAME	1
+#endif
+
+/*
+ * ex: set ts=8 sts=4 sw=4 et:
+ */