#endif
#define NOT_IN_PAD ((PADOFFSET) -1)
+/* B.xs expects the first members of these two structs to line up
+ (xpadl_max with xpadnl_fill).
+ */
struct padlist {
SSize_t xpadl_max; /* max index for which array has space */
PAD ** xpadl_alloc; /* pointer to beginning of array of AVs */
+ PADNAMELIST*xpadl_outid; /* Padnamelist of outer pad; used as ID */
+};
+
+struct padnamelist {
+ SSize_t xpadnl_fill; /* max index in use */
+ PADNAME ** xpadnl_alloc; /* pointer to beginning of array */
+ SSize_t xpadnl_max; /* max index for which array has space */
+ PADOFFSET xpadnl_max_named; /* highest index with len > 0 */
+ U32 xpadnl_refcnt;
};
+/* PERL_PADNAME_MINIMAL uses less memory, but on some platforms
+ PERL_PADNAME_ALIGNED may be faster, so platform-specific hints can
+ define one or the other. */
+#if defined(PERL_PADNAME_MINIMAL) && defined (PERL_PADNAME_ALIGNED)
+# error PERL_PADNAME_MINIMAL and PERL_PADNAME_ALIGNED are exclusive
+#endif
+
+#if !defined(PERL_PADNAME_MINIMAL) && !defined(PERL_PADNAME_ALIGNED)
+# define PERL_PADNAME_MINIMAL
+#endif
+
+#define _PADNAME_BASE \
+ char * xpadn_pv; \
+ HV * xpadn_ourstash; \
+ union { \
+ HV * xpadn_typestash; \
+ CV * xpadn_protocv; \
+ } xpadn_type_u; \
+ U32 xpadn_low; \
+ U32 xpadn_high; \
+ U32 xpadn_refcnt; \
+ int xpadn_gen; \
+ U8 xpadn_len; \
+ U8 xpadn_flags
+
+struct padname {
+ _PADNAME_BASE;
+};
+
+struct padname_with_str {
+#ifdef PERL_PADNAME_MINIMAL
+ _PADNAME_BASE;
+#else
+ struct padname xpadn_padname;
+#endif
+ char xpadn_str[1];
+};
+
+#undef _PADNAME_BASE
+
+#define PADNAME_FROM_PV(s) \
+ ((PADNAME *)((s) - STRUCT_OFFSET(struct padname_with_str, xpadn_str)))
+
/* a value that PL_cop_seqmax is guaranteed never to be,
* flagging that a lexical is being introduced, or has not yet left scope
*/
#define PERL_PADSEQ_INTRO U32_MAX
+#define COP_SEQMAX_INC \
+ (PL_cop_seqmax++, \
+ (void)(PL_cop_seqmax == PERL_PADSEQ_INTRO && PL_cop_seqmax++))
/* B.xs needs these for the benefit of B::Deparse */
/* Low range end is exclusive (valid from the cop seq after this one) */
/* High range end is inclusive (valid up to this cop seq) */
-#if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
-# define COP_SEQ_RANGE_LOW(sv) \
- (({ const SV *const _sv_cop_seq_range_low = (const SV *) (sv); \
- assert(SvTYPE(_sv_cop_seq_range_low) == SVt_NV \
- || SvTYPE(_sv_cop_seq_range_low) >= SVt_PVNV); \
- assert(SvTYPE(_sv_cop_seq_range_low) != SVt_PVAV); \
- assert(SvTYPE(_sv_cop_seq_range_low) != SVt_PVHV); \
- assert(SvTYPE(_sv_cop_seq_range_low) != SVt_PVCV); \
- assert(SvTYPE(_sv_cop_seq_range_low) != SVt_PVFM); \
- assert(!isGV_with_GP(_sv_cop_seq_range_low)); \
- ((XPVNV*) MUTABLE_PTR(SvANY(_sv_cop_seq_range_low)))->xnv_u.xpad_cop_seq.xlow; \
- }))
-# define COP_SEQ_RANGE_HIGH(sv) \
- (({ const SV *const _sv_cop_seq_range_high = (const SV *) (sv); \
- assert(SvTYPE(_sv_cop_seq_range_high) == SVt_NV \
- || SvTYPE(_sv_cop_seq_range_high) >= SVt_PVNV); \
- assert(SvTYPE(_sv_cop_seq_range_high) != SVt_PVAV); \
- assert(SvTYPE(_sv_cop_seq_range_high) != SVt_PVHV); \
- assert(SvTYPE(_sv_cop_seq_range_high) != SVt_PVCV); \
- assert(SvTYPE(_sv_cop_seq_range_high) != SVt_PVFM); \
- assert(!isGV_with_GP(_sv_cop_seq_range_high)); \
- ((XPVNV*) MUTABLE_PTR(SvANY(_sv_cop_seq_range_high)))->xnv_u.xpad_cop_seq.xhigh; \
- }))
-# define PARENT_PAD_INDEX(sv) \
- (({ const SV *const _sv_parent_pad_index = (const SV *) (sv); \
- assert(SvTYPE(_sv_parent_pad_index) == SVt_NV \
- || SvTYPE(_sv_parent_pad_index) >= SVt_PVNV); \
- assert(SvTYPE(_sv_parent_pad_index) != SVt_PVAV); \
- assert(SvTYPE(_sv_parent_pad_index) != SVt_PVHV); \
- assert(SvTYPE(_sv_parent_pad_index) != SVt_PVCV); \
- assert(SvTYPE(_sv_parent_pad_index) != SVt_PVFM); \
- assert(!isGV_with_GP(_sv_parent_pad_index)); \
- ((XPVNV*) MUTABLE_PTR(SvANY(_sv_parent_pad_index)))->xnv_u.xpad_cop_seq.xlow; \
- }))
-# define PARENT_FAKELEX_FLAGS(sv) \
- (({ const SV *const _sv_parent_fakelex_flags = (const SV *) (sv); \
- assert(SvTYPE(_sv_parent_fakelex_flags) == SVt_NV \
- || SvTYPE(_sv_parent_fakelex_flags) >= SVt_PVNV); \
- assert(SvTYPE(_sv_parent_fakelex_flags) != SVt_PVAV); \
- assert(SvTYPE(_sv_parent_fakelex_flags) != SVt_PVHV); \
- assert(SvTYPE(_sv_parent_fakelex_flags) != SVt_PVCV); \
- assert(SvTYPE(_sv_parent_fakelex_flags) != SVt_PVFM); \
- assert(!isGV_with_GP(_sv_parent_fakelex_flags)); \
- ((XPVNV*) MUTABLE_PTR(SvANY(_sv_parent_fakelex_flags)))->xnv_u.xpad_cop_seq.xhigh; \
- }))
-#else
-# define COP_SEQ_RANGE_LOW(sv) \
- (0 + (((XPVNV*) SvANY(sv))->xnv_u.xpad_cop_seq.xlow))
-# define COP_SEQ_RANGE_HIGH(sv) \
- (0 + (((XPVNV*) SvANY(sv))->xnv_u.xpad_cop_seq.xhigh))
-
-
-# define PARENT_PAD_INDEX(sv) \
- (0 + (((XPVNV*) SvANY(sv))->xnv_u.xpad_cop_seq.xlow))
-# define PARENT_FAKELEX_FLAGS(sv) \
- (0 + (((XPVNV*) SvANY(sv))->xnv_u.xpad_cop_seq.xhigh))
-#endif
+#define COP_SEQ_RANGE_LOW(pn) (pn)->xpadn_low
+#define COP_SEQ_RANGE_HIGH(pn) (pn)->xpadn_high
+#define PARENT_PAD_INDEX(pn) (pn)->xpadn_low
+#define PARENT_FAKELEX_FLAGS(pn) (pn)->xpadn_high
/* Flags set in the SvIVX field of FAKE namesvs */
#define padadd_NO_DUP_CHECK 0x04 /* skip warning on dups. */
#define padadd_STALEOK 0x08 /* allow stale lexical in active
* sub, but only one level up */
-#define padadd_UTF8_NAME SVf_UTF8 /* name is UTF-8 encoded. */
/* ASSERT_CURPAD_LEGAL and ASSERT_CURPAD_ACTIVE respectively determine
* whether PL_comppad and PL_curpad are consistent and whether they have
* active values */
-#ifndef PERL_MAD
# define pad_peg(label)
-#endif
#ifdef DEBUGGING
# define ASSERT_CURPAD_LEGAL(label) \
pad_peg(label); \
if (PL_comppad ? (AvARRAY(PL_comppad) != PL_curpad) : (PL_curpad != 0)) \
- Perl_croak(aTHX_ "panic: illegal pad in %s: 0x%"UVxf"[0x%"UVxf"]",\
+ Perl_croak(aTHX_ "panic: illegal pad in %s: 0x%" UVxf "[0x%" UVxf "]",\
label, PTR2UV(PL_comppad), PTR2UV(PL_curpad));
# define ASSERT_CURPAD_ACTIVE(label) \
pad_peg(label); \
if (!PL_comppad || (AvARRAY(PL_comppad) != PL_curpad)) \
- Perl_croak(aTHX_ "panic: invalid pad in %s: 0x%"UVxf"[0x%"UVxf"]",\
+ Perl_croak(aTHX_ "panic: invalid pad in %s: 0x%" UVxf "[0x%" UVxf "]",\
label, PTR2UV(PL_comppad), PTR2UV(PL_curpad));
#else
# define ASSERT_CURPAD_LEGAL(label)
XXX DAPM it would make more sense to make the arg a PADOFFSET
=for apidoc m|void|SAVECLEARSV |SV **svp
-Clear the pointed to pad value on scope exit. (i.e. the runtime action of 'my')
+Clear the pointed to pad value on scope exit. (i.e. the runtime action of
+'my')
=for apidoc m|void|SAVECOMPPAD
save PL_comppad and PL_curpad
+=for apidoc Amx|PAD **|PadlistARRAY|PADLIST padlist
+The C array of a padlist, containing the pads. Only subscript it with
+numbers >= 1, as the 0th entry is not guaranteed to remain usable.
+
+=for apidoc Amx|SSize_t|PadlistMAX|PADLIST padlist
+The index of the last allocated space in the padlist. Note that the last
+pad may be in an earlier slot. Any entries following it will be NULL in
+that case.
+
+=for apidoc Amx|PADNAMELIST *|PadlistNAMES|PADLIST padlist
+The names associated with pad entries.
+
+=for apidoc Amx|PADNAME **|PadlistNAMESARRAY|PADLIST padlist
+The C array of pad names.
+
+=for apidoc Amx|SSize_t|PadlistNAMESMAX|PADLIST padlist
+The index of the last pad name.
+
+=for apidoc Amx|U32|PadlistREFCNT|PADLIST padlist
+The reference count of the padlist. Currently this is always 1.
+
+=for apidoc Amx|PADNAME **|PadnamelistARRAY|PADNAMELIST pnl
+The C array of pad names.
+
+=for apidoc Amx|SSize_t|PadnamelistMAX|PADNAMELIST pnl
+The index of the last pad name.
+
+=for apidoc Amx|SSize_t|PadnamelistREFCNT|PADNAMELIST pnl
+The reference count of the pad name list.
+
+=for apidoc Amx|void|PadnamelistREFCNT_dec|PADNAMELIST pnl
+Lowers the reference count of the pad name list.
+
+=for apidoc Amx|SV **|PadARRAY|PAD pad
+The C array of pad entries.
+
+=for apidoc Amx|SSize_t|PadMAX|PAD pad
+The index of the last pad entry.
+
+=for apidoc Amx|char *|PadnamePV|PADNAME pn
+The name stored in the pad name struct. This returns NULL for a target
+slot.
+
+=for apidoc Amx|STRLEN|PadnameLEN|PADNAME pn
+The length of the name.
+
+=for apidoc Amx|bool|PadnameUTF8|PADNAME pn
+Whether PadnamePV is in UTF8. Currently, this is always true.
+
+=for apidoc Amx|SV *|PadnameSV|PADNAME pn
+Returns the pad name as a mortal SV.
+
+=for apidoc m|bool|PadnameIsOUR|PADNAME pn
+Whether this is an "our" variable.
+
+=for apidoc m|HV *|PadnameOURSTASH
+The stash in which this "our" variable was declared.
+
+=for apidoc m|bool|PadnameOUTER|PADNAME pn
+Whether this entry belongs to an outer pad. Entries for which this is true
+are often referred to as 'fake'.
+
+=for apidoc m|bool|PadnameIsSTATE|PADNAME pn
+Whether this is a "state" variable.
+
+=for apidoc m|HV *|PadnameTYPE|PADNAME pn
+The stash associated with a typed lexical. This returns the %Foo:: hash
+for C<my Foo $bar>.
+
+=for apidoc Amx|SSize_t|PadnameREFCNT|PADNAME pn
+The reference count of the pad name.
+=for apidoc Amx|void|PadnameREFCNT_dec|PADNAME pn
+Lowers the reference count of the pad name.
=for apidoc m|SV *|PAD_SETSV |PADOFFSET po|SV* sv
Set the slot at offset C<po> in the current pad to C<sv>
-=for apidoc m|void|PAD_SV |PADOFFSET po
+=for apidoc m|SV *|PAD_SV |PADOFFSET po
Get the value at offset C<po> in the current pad
=for apidoc m|SV *|PAD_SVl |PADOFFSET po
=for apidoc m|void|PAD_SET_CUR |PADLIST padlist|I32 n
Set the current pad to be pad C<n> in the padlist, saving
-the previous current pad. NB currently this macro expands to a string too
+the previous current pad. NB currently this macro expands to a string too
long for some compilers, so it's best to replace it with
SAVECOMPPAD();
=cut
*/
-#define PADLIST_ARRAY(pl) (pl)->xpadl_alloc
-#define PADLIST_MAX(pl) (pl)->xpadl_max
-#define PADLIST_REFCNT(pl) 1 /* reserved for future use */
+#define PadlistARRAY(pl) (pl)->xpadl_alloc
+#define PadlistMAX(pl) (pl)->xpadl_max
+#define PadlistNAMES(pl) ((PADNAMELIST *)*PadlistARRAY(pl))
+#define PadlistNAMESARRAY(pl) PadnamelistARRAY(PadlistNAMES(pl))
+#define PadlistNAMESMAX(pl) PadnamelistMAX(PadlistNAMES(pl))
+#define PadlistREFCNT(pl) 1 /* reserved for future use */
+
+#define PadnamelistARRAY(pnl) (pnl)->xpadnl_alloc
+#define PadnamelistMAX(pnl) (pnl)->xpadnl_fill
+#define PadnamelistMAXNAMED(pnl) (pnl)->xpadnl_max_named
+#define PadnamelistREFCNT(pnl) (pnl)->xpadnl_refcnt
+#define PadnamelistREFCNT_dec(pnl) Perl_padnamelist_free(aTHX_ pnl)
+
+#define PadARRAY(pad) AvARRAY(pad)
+#define PadMAX(pad) AvFILLp(pad)
+
+#define PadnamePV(pn) (pn)->xpadn_pv
+#define PadnameLEN(pn) (pn)->xpadn_len
+#define PadnameUTF8(pn) 1
+#define PadnameSV(pn) \
+ newSVpvn_flags(PadnamePV(pn), PadnameLEN(pn), SVs_TEMP|SVf_UTF8)
+#define PadnameFLAGS(pn) (pn)->xpadn_flags
+#define PadnameIsOUR(pn) (!!(pn)->xpadn_ourstash)
+#define PadnameOURSTASH(pn) (pn)->xpadn_ourstash
+#define PadnameTYPE(pn) (pn)->xpadn_type_u.xpadn_typestash
+#define PadnamePROTOCV(pn) (pn)->xpadn_type_u.xpadn_protocv
+#define PadnameREFCNT(pn) (pn)->xpadn_refcnt
+#define PadnameREFCNT_dec(pn) Perl_padname_free(aTHX_ pn)
+#define PadnameOURSTASH_set(pn,s) (PadnameOURSTASH(pn) = (s))
+#define PadnameTYPE_set(pn,s) (PadnameTYPE(pn) = (s))
+#define PadnameOUTER(pn) (PadnameFLAGS(pn) & PADNAMEt_OUTER)
+#define PadnameIsSTATE(pn) (PadnameFLAGS(pn) & PADNAMEt_STATE)
+#define PadnameLVALUE(pn) (PadnameFLAGS(pn) & PADNAMEt_LVALUE)
+
+#define PadnameLVALUE_on(pn) (PadnameFLAGS(pn) |= PADNAMEt_LVALUE)
+#define PadnameIsSTATE_on(pn) (PadnameFLAGS(pn) |= PADNAMEt_STATE)
+
+#define PADNAMEt_OUTER 1 /* outer lexical var */
+#define PADNAMEt_STATE 2 /* state var */
+#define PADNAMEt_LVALUE 4 /* used as lvalue */
+#define PADNAMEt_TYPED 8 /* for B; unused by core */
+#define PADNAMEt_OUR 16 /* for B; unused by core */
+
+/* backward compatibility */
+#define SvPAD_STATE PadnameIsSTATE
+#define SvPAD_TYPED(pn) (!!PadnameTYPE(pn))
+#define SvPAD_OUR(pn) (!!PadnameOURSTASH(pn))
+#define SvPAD_STATE_on PadnameIsSTATE_on
+#define SvPAD_TYPED_on(pn) (PadnameFLAGS(pn) |= PADNAMEt_TYPED)
+#define SvPAD_OUR_on(pn) (PadnameFLAGS(pn) |= PADNAMEt_OUR)
+#define SvOURSTASH PadnameOURSTASH
+#define SvOURSTASH_set PadnameOURSTASH_set
+#define SVpad_STATE PADNAMEt_STATE
+#define SVpad_TYPED PADNAMEt_TYPED
+#define SVpad_OUR PADNAMEt_OUR
#ifdef DEBUGGING
# define PAD_SV(po) pad_sv(po)
#define PAD_SVl(po) (PL_curpad[po])
#define PAD_BASE_SV(padlist, po) \
- (PADLIST_ARRAY(padlist)[1]) \
- ? AvARRAY(MUTABLE_AV((PADLIST_ARRAY(padlist)[1])))[po] \
+ (PadlistARRAY(padlist)[1]) \
+ ? AvARRAY(MUTABLE_AV((PadlistARRAY(padlist)[1])))[po] \
: NULL;
#define PAD_SET_CUR_NOSAVE(padlist,nth) \
- PL_comppad = (PAD*) (PADLIST_ARRAY(padlist)[nth]); \
+ PL_comppad = (PAD*) (PadlistARRAY(padlist)[nth]); \
PL_curpad = AvARRAY(PL_comppad); \
DEBUG_Xv(PerlIO_printf(Perl_debug_log, \
- "Pad 0x%"UVxf"[0x%"UVxf"] set_cur depth=%d\n", \
+ "Pad 0x%" UVxf "[0x%" UVxf "] set_cur depth=%d\n", \
PTR2UV(PL_comppad), PTR2UV(PL_curpad), (int)(nth)));
PL_comppad = (npad); \
PL_curpad = PL_comppad ? AvARRAY(PL_comppad) : NULL; \
DEBUG_Xv(PerlIO_printf(Perl_debug_log, \
- "Pad 0x%"UVxf"[0x%"UVxf"] save_local\n", \
+ "Pad 0x%" UVxf "[0x%" UVxf "] save_local\n", \
PTR2UV(PL_comppad), PTR2UV(PL_curpad)));
#define PAD_RESTORE_LOCAL(opad) \
PL_comppad = opad; \
PL_curpad = PL_comppad ? AvARRAY(PL_comppad) : NULL; \
DEBUG_Xv(PerlIO_printf(Perl_debug_log, \
- "Pad 0x%"UVxf"[0x%"UVxf"] restore_local\n", \
+ "Pad 0x%" UVxf "[0x%" UVxf "] restore_local\n", \
PTR2UV(PL_comppad), PTR2UV(PL_curpad)));
/*
=for apidoc m|U32|PAD_COMPNAME_FLAGS|PADOFFSET po
Return the flags for the current compiling pad name
-at offset C<po>. Assumes a valid slot entry.
+at offset C<po>. Assumes a valid slot entry.
=for apidoc m|char *|PAD_COMPNAME_PV|PADOFFSET po
Return the name of the current compiling pad name
-at offset C<po>. Assumes a valid slot entry.
+at offset C<po>. Assumes a valid slot entry.
=for apidoc m|HV *|PAD_COMPNAME_TYPE|PADOFFSET po
Return the type (stash) of the current compiling pad name at offset
-C<po>. Must be a valid name. Returns null if not typed.
+C<po>. Must be a valid name. Returns null if not typed.
=for apidoc m|HV *|PAD_COMPNAME_OURSTASH|PADOFFSET po
Return the stash associated with an C<our> variable.
=for apidoc m|STRLEN|PAD_COMPNAME_GEN|PADOFFSET po
The generation number of the name at offset C<po> in the current
-compiling pad (lvalue). Note that C<SvUVX> is hijacked for this purpose.
+compiling pad (lvalue). Note that C<SvUVX> is hijacked for this purpose.
=for apidoc m|STRLEN|PAD_COMPNAME_GEN_set|PADOFFSET po|int gen
Sets the generation number of the name at offset C<po> in the current
*/
-#define PAD_COMPNAME_SV(po) (*av_fetch(PL_comppad_name, (po), FALSE))
-#define PAD_COMPNAME_FLAGS(po) SvFLAGS(PAD_COMPNAME_SV(po))
+#define PAD_COMPNAME(po) PAD_COMPNAME_SV(po)
+#define PAD_COMPNAME_SV(po) (PadnamelistARRAY(PL_comppad_name)[(po)])
+#define PAD_COMPNAME_FLAGS(po) PadnameFLAGS(PAD_COMPNAME(po))
#define PAD_COMPNAME_FLAGS_isOUR(po) SvPAD_OUR(PAD_COMPNAME_SV(po))
-#define PAD_COMPNAME_PV(po) SvPV_nolen(PAD_COMPNAME_SV(po))
+#define PAD_COMPNAME_PV(po) PadnamePV(PAD_COMPNAME(po))
-#define PAD_COMPNAME_TYPE(po) pad_compname_type(po)
+#define PAD_COMPNAME_TYPE(po) PadnameTYPE(PAD_COMPNAME(po))
#define PAD_COMPNAME_OURSTASH(po) \
(SvOURSTASH(PAD_COMPNAME_SV(po)))
-#define PAD_COMPNAME_GEN(po) ((STRLEN)SvUVX(AvARRAY(PL_comppad_name)[po]))
+#define PAD_COMPNAME_GEN(po) \
+ ((STRLEN)PadnamelistARRAY(PL_comppad_name)[po]->xpadn_gen)
-#define PAD_COMPNAME_GEN_set(po, gen) SvUV_set(AvARRAY(PL_comppad_name)[po], (UV)(gen))
+#define PAD_COMPNAME_GEN_set(po, gen) \
+ (PadnamelistARRAY(PL_comppad_name)[po]->xpadn_gen = (gen))
/*
#define PAD_CLONE_VARS(proto_perl, param) \
PL_comppad = av_dup(proto_perl->Icomppad, param); \
PL_curpad = PL_comppad ? AvARRAY(PL_comppad) : NULL; \
- PL_comppad_name = av_dup(proto_perl->Icomppad_name, param); \
+ PL_comppad_name = \
+ padnamelist_dup(proto_perl->Icomppad_name, param); \
PL_comppad_name_fill = proto_perl->Icomppad_name_fill; \
PL_comppad_name_floor = proto_perl->Icomppad_name_floor; \
PL_min_intro_pending = proto_perl->Imin_intro_pending; \
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