X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/7948fc082b7916e5f602700f36d83fdcf421314c..e9c9ffcae4a8b5820dabb04674b85bb5195fcfc4:/cv.h

diff --git a/cv.h b/cv.h
index 53c4733..7979a05 100644
--- a/cv.h
+++ b/cv.h
@@ -1,7 +1,7 @@
 /*    cv.h
  *
- *    Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2000,
- *    2001, 2002, 2003, 2004, 2005, 2006, 2007, by Larry Wall and others
+ *    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.
@@ -12,16 +12,10 @@
 
 struct xpvcv {
     _XPV_HEAD;
-    _XPVMG_HEAD;
     _XPVCV_COMMON;
+    I32	xcv_depth;	/* >= 2 indicates recursive call */
 };
 
-typedef struct {
-    _XPV_ALLOCATED_HEAD;
-    _XPVMG_HEAD;
-    _XPVCV_COMMON;
-} xpvcv_allocated;
-
 /*
 =head1 Handy Values
 
@@ -42,13 +36,14 @@ Returns the stash of the CV.
 #  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)	((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_stash
+#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)	(0+((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_gv)
+#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)))
 #else
@@ -56,36 +51,35 @@ Returns the stash of the CV.
 #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 || \
-				 SvTYPE(_cvdepth) == SVt_PVFM);	 \
-			  &((XPVCV*)SvANY(_cvdepth))->xiv_u.xivu_i32; \
+#  define CvDEPTH(sv) (*({const CV *const _cvdepth = (const CV *)sv; \
+			  assert(SvTYPE(_cvdepth) == SVt_PVCV);	 \
+			  &((XPVCV*)SvANY(_cvdepth))->xcv_depth; \
 			}))
 #else
-#  define CvDEPTH(sv)	((XPVCV*)SvANY(sv))->xiv_u.xivu_i32
+#  define CvDEPTH(sv)	((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_depth
 #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 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
 
 #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 */
 
 /* 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)
@@ -111,10 +105,6 @@ Returns the stash of the CV.
 #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)
@@ -140,6 +130,10 @@ Returns the stash of the 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)
+
 /* Flags for newXS_flags  */
 #define XS_DYNAMIC_FILENAME	0x01	/* The filename isn't static  */