/* op.h
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2003, 2004, 2005 by Larry Wall and others
+ * 2000, 2001, 2002, 2003, 2004, 2005, 2006 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.
* op_static Whether or not the op is statically defined.
* This flag is used by the B::C compiler backend
* and indicates that the op should not be freed.
+ *
+ * See the comments in S_clear_yystack() for more
+ * details on the following three flags:
+
* op_latefree tell op_free() to clear this op (and free any kids)
* but not yet deallocate the struct. This means that
* the op may be safely op_free()d multiple times
* op_latefreed an op_latefree op has been op_free()d
- * op_spare three spare bits!
+ * op_attached this op (sub)tree has been attached to a CV
+ *
+ * op_spare two spare bits!
* op_flags Flags common to all operations. See OPf_* below.
* op_private Flags peculiar to a particular operation (BUT,
* by default, set to the number of children until
unsigned op_static:1; \
unsigned op_latefree:1; \
unsigned op_latefreed:1; \
- unsigned op_spare:3; \
+ unsigned op_attached:1; \
+ unsigned op_spare:2; \
U8 op_flags; \
U8 op_private;
#endif
#define OPf_STACKED 64 /* Some arg is arriving on the stack. */
#define OPf_SPECIAL 128 /* Do something weird for this op: */
/* On local LVAL, don't init local value. */
+ /* On OP_CONST, value is the hints hash for
+ eval, so return a copy from pp_const() */
/* On OP_SORT, subroutine is inlined. */
/* On OP_NOT, inversion was implicit. */
/* On OP_LEAVE, don't restore curpm. */
#define OPpLVAL_DEFER 16 /* Defer creation of array/hash elem */
/* OP_RV2?V, OP_GVSV, OP_ENTERITER only */
#define OPpOUR_INTRO 16 /* Variable was in an our() */
- /* OP_RV2[AH]V, OP_PAD[AH]V, OP_[AH]ELEM */
+ /* OP_RV2[AGH]V, OP_PAD[AH]V, OP_[AH]ELEM */
#define OPpMAYBE_LVSUB 8 /* We might be an lvalue to return */
/* OP_PADSV only */
#define OPpPAD_STATE 16 /* is a "state" pad */
/* for OP_RV2?V, lower bits carry hints (currently only HINT_STRICT_REFS) */
/* OP_RV2GV only */
-#define OPpDONT_INIT_GV 8 /* Call gv_fetchpv with GV_NOINIT */
+#define OPpDONT_INIT_GV 4 /* Call gv_fetchpv with GV_NOINIT */
/* (Therefore will return whatever is currently in the symbol table, not
guaranteed to be a PVGV) */
#define PMf_GLOBAL 0x0100 /* pattern had a g modifier */
#define PMf_CONTINUE 0x0200 /* don't reset pos() if //g fails */
#define PMf_EVAL 0x0400 /* evaluating replacement as expr */
-#define PMf_LOCALE 0x0800 /* use locale for character types */
-#define PMf_MULTILINE 0x1000 /* assume multiple lines */
-#define PMf_SINGLELINE 0x2000 /* assume single line */
-#define PMf_FOLD 0x4000 /* case insensitivity */
-#define PMf_EXTENDED 0x8000 /* chuck embedded whitespace */
-
-/* mask of bits stored in regexp->extflags
- these all are also called RXf_PMf_xyz
+
+/* The following flags have exact equivalents in regcomp.h with the prefix RXf_
+ * which are stored in the regexp->extflags member.
*/
-#define PMf_COMPILETIME (PMf_MULTILINE|PMf_SINGLELINE|PMf_LOCALE|PMf_FOLD|PMf_EXTENDED)
+#define PMf_LOCALE 0x00800 /* use locale for character types */
+#define PMf_MULTILINE 0x01000 /* assume multiple lines */
+#define PMf_SINGLELINE 0x02000 /* assume single line */
+#define PMf_FOLD 0x04000 /* case insensitivity */
+#define PMf_EXTENDED 0x08000 /* chuck embedded whitespace */
+#define PMf_KEEPCOPY 0x10000 /* copy the string when matching */
+
+/* mask of bits that need to be transfered to re->extflags */
+#define PMf_COMPILETIME (PMf_MULTILINE|PMf_SINGLELINE|PMf_LOCALE|PMf_FOLD|PMf_EXTENDED|PMf_KEEPCOPY)
#ifdef USE_ITHREADS
/* no longer used anywhere in core */
#ifndef PERL_CORE
-#define cv_ckproto(cv, gv, p) cv_ckproto_len(cv, gv, p, p ? strlen(p) : 0)
+#define cv_ckproto(cv, gv, p) \
+ cv_ckproto_len((cv), (gv), (p), (p) ? strlen(p) : 0)
#endif
#ifdef USE_REENTRANT_API