X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/1dba731d9f7b0a03b8cecb69b9d80500a283425e..c0a76f0603654cca986933e58136edf51ee334b8:/pad.h diff --git a/pad.h b/pad.h index 022a7de..8602eda 100644 --- a/pad.h +++ b/pad.h @@ -1,6 +1,6 @@ /* pad.h * - * Copyright (C) 2002, 2003, 2005, by Larry Wall and others + * Copyright (C) 2002, 2003, 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. @@ -30,7 +30,73 @@ typedef U64TYPE PADOFFSET; # endif #endif #define NOT_IN_PAD ((PADOFFSET) -1) - + +/* 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 + +/* Flags set in the SvIVX field of FAKE namesvs */ + +#define PAD_FAKELEX_ANON 1 /* the lex is declared in an ANON, or ... */ +#define PAD_FAKELEX_MULTI 2 /* the lex can be instantiated multiple times */ /* flags for the pad_new() function */ @@ -46,6 +112,16 @@ typedef enum { padtidy_FORMAT /* or a format */ } padtidy_type; +#ifdef PERL_CORE + +/* flags for pad_add_name. SVf_UTF8 will also be valid in the future. */ + +# define padadd_OUR 0x01 /* our declaration. */ +# define padadd_STATE 0x02 /* state declaration. */ +# define padadd_NO_DUP_CHECK 0x04 /* skip warning on dups. */ + +#endif + /* ASSERT_CURPAD_LEGAL and ASSERT_CURPAD_ACTIVE respectively determine * whether PL_comppad and PL_curpad are consistent and whether they have * active values */ @@ -144,20 +220,20 @@ Restore the old pad saved into the local variable opad by PAD_SAVE_LOCAL() #define PAD_BASE_SV(padlist, po) \ (AvARRAY(padlist)[1]) \ - ? AvARRAY((AV*)(AvARRAY(padlist)[1]))[po] : NULL; - + ? AvARRAY(MUTABLE_AV((AvARRAY(padlist)[1])))[po] : NULL; + -#define PAD_SET_CUR_NOSAVE(padlist,n) \ - PL_comppad = (PAD*) (AvARRAY(padlist)[n]); \ +#define PAD_SET_CUR_NOSAVE(padlist,nth) \ + PL_comppad = (PAD*) (AvARRAY(padlist)[nth]); \ PL_curpad = AvARRAY(PL_comppad); \ DEBUG_Xv(PerlIO_printf(Perl_debug_log, \ "Pad 0x%"UVxf"[0x%"UVxf"] set_cur depth=%d\n", \ - PTR2UV(PL_comppad), PTR2UV(PL_curpad), (int)(n))); + PTR2UV(PL_comppad), PTR2UV(PL_curpad), (int)(nth))); -#define PAD_SET_CUR(padlist,n) \ +#define PAD_SET_CUR(padlist,nth) \ SAVECOMPPAD(); \ - PAD_SET_CUR_NOSAVE(padlist,n); + PAD_SET_CUR_NOSAVE(padlist,nth); #define PAD_SAVE_SETNULLPAD() SAVECOMPPAD(); \ @@ -173,7 +249,8 @@ Restore the old pad saved into the local variable opad by PAD_SAVE_LOCAL() PTR2UV(PL_comppad), PTR2UV(PL_curpad))); #define PAD_RESTORE_LOCAL(opad) \ - PL_comppad = opad; \ + assert(!opad || !SvIS_FREED(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", \ @@ -192,7 +269,7 @@ context block structure (can be used as an lvalue). */ #define CX_CURPAD_SAVE(block) (block).oldcomppad = PL_comppad -#define CX_CURPAD_SV(block,po) (AvARRAY((AV*)((block).oldcomppad))[po]) +#define CX_CURPAD_SV(block,po) (AvARRAY(MUTABLE_AV(((block).oldcomppad)))[po]) /* @@ -214,37 +291,37 @@ Assumes the slot entry is a valid C lexical. =for apidoc m|STRLEN|PAD_COMPNAME_GEN|PADOFFSET po The generation number of the name at offset C in the current -compiling pad (lvalue). Note that C is hijacked for this purpose. +compiling pad (lvalue). Note that C 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 in the current -ling pad (lvalue) to C. Note that C is hijacked for this purpose. +ling pad (lvalue) to C. Note that C is hijacked for this purpose. =cut */ -#define PAD_COMPNAME_FLAGS(po) SvFLAGS(*av_fetch(PL_comppad_name, (po), FALSE)) +#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_FLAGS_isOUR(po) \ ((PAD_COMPNAME_FLAGS(po) & (SVpad_NAME|SVpad_OUR)) == (SVpad_NAME|SVpad_OUR)) -#define PAD_COMPNAME_PV(po) SvPV_nolen(*av_fetch(PL_comppad_name, (po), FALSE)) +#define PAD_COMPNAME_PV(po) SvPV_nolen(PAD_COMPNAME_SV(po)) #define PAD_COMPNAME_TYPE(po) pad_compname_type(po) #define PAD_COMPNAME_OURSTASH(po) \ - (OURSTASH(*av_fetch(PL_comppad_name, (po), FALSE))) + (SvOURSTASH(PAD_COMPNAME_SV(po))) -#define PAD_COMPNAME_GEN(po) SvCUR(AvARRAY(PL_comppad_name)[po]) +#define PAD_COMPNAME_GEN(po) ((STRLEN)SvUVX(AvARRAY(PL_comppad_name)[po])) -#define PAD_COMPNAME_GEN_set(po, gen) SvCUR_set(AvARRAY(PL_comppad_name)[po], gen) +#define PAD_COMPNAME_GEN_set(po, gen) SvUV_set(AvARRAY(PL_comppad_name)[po], (UV)(gen)) /* =for apidoc m|void|PAD_DUP|PADLIST dstpad|PADLIST srcpad|CLONE_PARAMS* param Clone a padlist. -=for apidoc m|void|PAD_CLONE_VARS|PerlInterpreter *proto_perl \ -|CLONE_PARAMS* param +=for apidoc m|void|PAD_CLONE_VARS|PerlInterpreter *proto_perl|CLONE_PARAMS* param Clone the state variables associated with running and compiling pads. =cut @@ -271,7 +348,7 @@ Clone the state variables associated with running and compiling pads. * sub's CV or padlist. */ #define PAD_CLONE_VARS(proto_perl, param) \ - PL_comppad = (AV *) ptr_table_fetch(PL_ptr_table, proto_perl->Icomppad); \ + PL_comppad = MUTABLE_AV(ptr_table_fetch(PL_ptr_table, proto_perl->Icomppad)); \ PL_curpad = PL_comppad ? AvARRAY(PL_comppad) : NULL; \ PL_comppad_name = av_dup(proto_perl->Icomppad_name, param); \ PL_comppad_name_fill = proto_perl->Icomppad_name_fill; \ @@ -282,3 +359,13 @@ Clone the state variables associated with running and compiling pads. PL_padix_floor = proto_perl->Ipadix_floor; \ PL_pad_reset_pending = proto_perl->Ipad_reset_pending; \ PL_cop_seqmax = proto_perl->Icop_seqmax; + +/* + * Local variables: + * c-indentation-style: bsd + * c-basic-offset: 4 + * indent-tabs-mode: t + * End: + * + * ex: set ts=8 sts=4 sw=4 noet: + */