| 1 | /* pad.h |
| 2 | * |
| 3 | * Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008, |
| 4 | * 2009, 2010, 2011 by Larry Wall and others |
| 5 | * |
| 6 | * You may distribute under the terms of either the GNU General Public |
| 7 | * License or the Artistic License, as specified in the README file. |
| 8 | * |
| 9 | * This file defines the types and macros associated with the API for |
| 10 | * manipulating scratchpads, which are used by perl to store lexical |
| 11 | * variables, op targets and constants. |
| 12 | */ |
| 13 | |
| 14 | /* |
| 15 | =head1 Pad Data Structures |
| 16 | */ |
| 17 | |
| 18 | |
| 19 | /* offsets within a pad */ |
| 20 | |
| 21 | #if PTRSIZE == 4 |
| 22 | typedef U32TYPE PADOFFSET; |
| 23 | #else |
| 24 | # if PTRSIZE == 8 |
| 25 | typedef U64TYPE PADOFFSET; |
| 26 | # endif |
| 27 | #endif |
| 28 | #define NOT_IN_PAD ((PADOFFSET) -1) |
| 29 | |
| 30 | |
| 31 | struct padlist { |
| 32 | SSize_t xpadl_max; /* max index for which array has space */ |
| 33 | PAD ** xpadl_alloc; /* pointer to beginning of array of AVs */ |
| 34 | U32 xpadl_id; /* Semi-unique ID, shared between clones */ |
| 35 | U32 xpadl_outid; /* ID of outer pad */ |
| 36 | }; |
| 37 | |
| 38 | |
| 39 | /* a value that PL_cop_seqmax is guaranteed never to be, |
| 40 | * flagging that a lexical is being introduced, or has not yet left scope |
| 41 | */ |
| 42 | #define PERL_PADSEQ_INTRO U32_MAX |
| 43 | |
| 44 | |
| 45 | /* B.xs needs these for the benefit of B::Deparse */ |
| 46 | /* Low range end is exclusive (valid from the cop seq after this one) */ |
| 47 | /* High range end is inclusive (valid up to this cop seq) */ |
| 48 | |
| 49 | #if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) |
| 50 | # define COP_SEQ_RANGE_LOW(sv) \ |
| 51 | (({ const SV *const _sv_cop_seq_range_low = (const SV *) (sv); \ |
| 52 | assert(SvTYPE(_sv_cop_seq_range_low) == SVt_NV \ |
| 53 | || SvTYPE(_sv_cop_seq_range_low) >= SVt_PVNV); \ |
| 54 | assert(SvTYPE(_sv_cop_seq_range_low) != SVt_PVAV); \ |
| 55 | assert(SvTYPE(_sv_cop_seq_range_low) != SVt_PVHV); \ |
| 56 | assert(SvTYPE(_sv_cop_seq_range_low) != SVt_PVCV); \ |
| 57 | assert(SvTYPE(_sv_cop_seq_range_low) != SVt_PVFM); \ |
| 58 | assert(!isGV_with_GP(_sv_cop_seq_range_low)); \ |
| 59 | ((XPVNV*) MUTABLE_PTR(SvANY(_sv_cop_seq_range_low)))->xnv_u.xpad_cop_seq.xlow; \ |
| 60 | })) |
| 61 | # define COP_SEQ_RANGE_HIGH(sv) \ |
| 62 | (({ const SV *const _sv_cop_seq_range_high = (const SV *) (sv); \ |
| 63 | assert(SvTYPE(_sv_cop_seq_range_high) == SVt_NV \ |
| 64 | || SvTYPE(_sv_cop_seq_range_high) >= SVt_PVNV); \ |
| 65 | assert(SvTYPE(_sv_cop_seq_range_high) != SVt_PVAV); \ |
| 66 | assert(SvTYPE(_sv_cop_seq_range_high) != SVt_PVHV); \ |
| 67 | assert(SvTYPE(_sv_cop_seq_range_high) != SVt_PVCV); \ |
| 68 | assert(SvTYPE(_sv_cop_seq_range_high) != SVt_PVFM); \ |
| 69 | assert(!isGV_with_GP(_sv_cop_seq_range_high)); \ |
| 70 | ((XPVNV*) MUTABLE_PTR(SvANY(_sv_cop_seq_range_high)))->xnv_u.xpad_cop_seq.xhigh; \ |
| 71 | })) |
| 72 | # define PARENT_PAD_INDEX(sv) \ |
| 73 | (({ const SV *const _sv_parent_pad_index = (const SV *) (sv); \ |
| 74 | assert(SvTYPE(_sv_parent_pad_index) == SVt_NV \ |
| 75 | || SvTYPE(_sv_parent_pad_index) >= SVt_PVNV); \ |
| 76 | assert(SvTYPE(_sv_parent_pad_index) != SVt_PVAV); \ |
| 77 | assert(SvTYPE(_sv_parent_pad_index) != SVt_PVHV); \ |
| 78 | assert(SvTYPE(_sv_parent_pad_index) != SVt_PVCV); \ |
| 79 | assert(SvTYPE(_sv_parent_pad_index) != SVt_PVFM); \ |
| 80 | assert(!isGV_with_GP(_sv_parent_pad_index)); \ |
| 81 | ((XPVNV*) MUTABLE_PTR(SvANY(_sv_parent_pad_index)))->xnv_u.xpad_cop_seq.xlow; \ |
| 82 | })) |
| 83 | # define PARENT_FAKELEX_FLAGS(sv) \ |
| 84 | (({ const SV *const _sv_parent_fakelex_flags = (const SV *) (sv); \ |
| 85 | assert(SvTYPE(_sv_parent_fakelex_flags) == SVt_NV \ |
| 86 | || SvTYPE(_sv_parent_fakelex_flags) >= SVt_PVNV); \ |
| 87 | assert(SvTYPE(_sv_parent_fakelex_flags) != SVt_PVAV); \ |
| 88 | assert(SvTYPE(_sv_parent_fakelex_flags) != SVt_PVHV); \ |
| 89 | assert(SvTYPE(_sv_parent_fakelex_flags) != SVt_PVCV); \ |
| 90 | assert(SvTYPE(_sv_parent_fakelex_flags) != SVt_PVFM); \ |
| 91 | assert(!isGV_with_GP(_sv_parent_fakelex_flags)); \ |
| 92 | ((XPVNV*) MUTABLE_PTR(SvANY(_sv_parent_fakelex_flags)))->xnv_u.xpad_cop_seq.xhigh; \ |
| 93 | })) |
| 94 | #else |
| 95 | # define COP_SEQ_RANGE_LOW(sv) \ |
| 96 | (0 + (((XPVNV*) SvANY(sv))->xnv_u.xpad_cop_seq.xlow)) |
| 97 | # define COP_SEQ_RANGE_HIGH(sv) \ |
| 98 | (0 + (((XPVNV*) SvANY(sv))->xnv_u.xpad_cop_seq.xhigh)) |
| 99 | |
| 100 | |
| 101 | # define PARENT_PAD_INDEX(sv) \ |
| 102 | (0 + (((XPVNV*) SvANY(sv))->xnv_u.xpad_cop_seq.xlow)) |
| 103 | # define PARENT_FAKELEX_FLAGS(sv) \ |
| 104 | (0 + (((XPVNV*) SvANY(sv))->xnv_u.xpad_cop_seq.xhigh)) |
| 105 | #endif |
| 106 | |
| 107 | /* Flags set in the SvIVX field of FAKE namesvs */ |
| 108 | |
| 109 | #define PAD_FAKELEX_ANON 1 /* the lex is declared in an ANON, or ... */ |
| 110 | #define PAD_FAKELEX_MULTI 2 /* the lex can be instantiated multiple times */ |
| 111 | |
| 112 | /* flags for the pad_new() function */ |
| 113 | |
| 114 | #define padnew_CLONE 1 /* this pad is for a cloned CV */ |
| 115 | #define padnew_SAVE 2 /* save old globals */ |
| 116 | #define padnew_SAVESUB 4 /* also save extra stuff for start of sub */ |
| 117 | |
| 118 | /* values for the pad_tidy() function */ |
| 119 | |
| 120 | typedef enum { |
| 121 | padtidy_SUB, /* tidy up a pad for a sub, */ |
| 122 | padtidy_SUBCLONE, /* a cloned sub, */ |
| 123 | padtidy_FORMAT /* or a format */ |
| 124 | } padtidy_type; |
| 125 | |
| 126 | /* flags for pad_add_name_pvn. */ |
| 127 | |
| 128 | #define padadd_OUR 0x01 /* our declaration. */ |
| 129 | #define padadd_STATE 0x02 /* state declaration. */ |
| 130 | #define padadd_NO_DUP_CHECK 0x04 /* skip warning on dups. */ |
| 131 | #define padadd_STALEOK 0x08 /* allow stale lexical in active |
| 132 | * sub, but only one level up */ |
| 133 | #define padadd_UTF8_NAME SVf_UTF8 /* name is UTF-8 encoded. */ |
| 134 | |
| 135 | /* ASSERT_CURPAD_LEGAL and ASSERT_CURPAD_ACTIVE respectively determine |
| 136 | * whether PL_comppad and PL_curpad are consistent and whether they have |
| 137 | * active values */ |
| 138 | |
| 139 | #ifndef PERL_MAD |
| 140 | # define pad_peg(label) |
| 141 | #endif |
| 142 | |
| 143 | #ifdef DEBUGGING |
| 144 | # define ASSERT_CURPAD_LEGAL(label) \ |
| 145 | pad_peg(label); \ |
| 146 | if (PL_comppad ? (AvARRAY(PL_comppad) != PL_curpad) : (PL_curpad != 0)) \ |
| 147 | Perl_croak(aTHX_ "panic: illegal pad in %s: 0x%"UVxf"[0x%"UVxf"]",\ |
| 148 | label, PTR2UV(PL_comppad), PTR2UV(PL_curpad)); |
| 149 | |
| 150 | |
| 151 | # define ASSERT_CURPAD_ACTIVE(label) \ |
| 152 | pad_peg(label); \ |
| 153 | if (!PL_comppad || (AvARRAY(PL_comppad) != PL_curpad)) \ |
| 154 | Perl_croak(aTHX_ "panic: invalid pad in %s: 0x%"UVxf"[0x%"UVxf"]",\ |
| 155 | label, PTR2UV(PL_comppad), PTR2UV(PL_curpad)); |
| 156 | #else |
| 157 | # define ASSERT_CURPAD_LEGAL(label) |
| 158 | # define ASSERT_CURPAD_ACTIVE(label) |
| 159 | #endif |
| 160 | |
| 161 | |
| 162 | |
| 163 | /* Note: the following three macros are actually defined in scope.h, but |
| 164 | * they are documented here for completeness, since they directly or |
| 165 | * indirectly affect pads. |
| 166 | |
| 167 | =for apidoc m|void|SAVEPADSV |PADOFFSET po |
| 168 | Save a pad slot (used to restore after an iteration) |
| 169 | |
| 170 | XXX DAPM it would make more sense to make the arg a PADOFFSET |
| 171 | =for apidoc m|void|SAVECLEARSV |SV **svp |
| 172 | Clear the pointed to pad value on scope exit. (i.e. the runtime action of 'my') |
| 173 | |
| 174 | =for apidoc m|void|SAVECOMPPAD |
| 175 | save PL_comppad and PL_curpad |
| 176 | |
| 177 | |
| 178 | =for apidoc Amx|PAD **|PadlistARRAY|PADLIST padlist |
| 179 | The C array of a padlist, containing the pads. Only subscript it with |
| 180 | numbers >= 1, as the 0th entry is not guaranteed to remain usable. |
| 181 | |
| 182 | =for apidoc Amx|SSize_t|PadlistMAX|PADLIST padlist |
| 183 | The index of the last pad in the padlist. |
| 184 | |
| 185 | =for apidoc Amx|PADNAMELIST *|PadlistNAMES|PADLIST padlist |
| 186 | The names associated with pad entries. |
| 187 | |
| 188 | =for apidoc Amx|PADNAME **|PadlistNAMESARRAY|PADLIST padlist |
| 189 | The C array of pad names. |
| 190 | |
| 191 | =for apidoc Amx|SSize_t|PadlistNAMESMAX|PADLIST padlist |
| 192 | The index of the last pad name. |
| 193 | |
| 194 | =for apidoc Amx|U32|PadlistREFCNT|PADLIST padlist |
| 195 | The reference count of the padlist. Currently this is always 1. |
| 196 | |
| 197 | =for apidoc Amx|PADNAME **|PadnamelistARRAY|PADNAMELIST pnl |
| 198 | The C array of pad names. |
| 199 | |
| 200 | =for apidoc Amx|SSize_t|PadnamelistMAX|PADNAMELIST pnl |
| 201 | The index of the last pad name. |
| 202 | |
| 203 | =for apidoc Amx|SV **|PadARRAY|PAD pad |
| 204 | The C array of pad entries. |
| 205 | |
| 206 | =for apidoc Amx|SSize_t|PadMAX|PAD pad |
| 207 | The index of the last pad entry. |
| 208 | |
| 209 | =for apidoc Amx|char *|PadnamePV|PADNAME pn |
| 210 | The name stored in the pad name struct. This returns NULL for a target or |
| 211 | GV slot. |
| 212 | |
| 213 | =for apidoc Amx|STRLEN|PadnameLEN|PADNAME pn |
| 214 | The length of the name. |
| 215 | |
| 216 | =for apidoc Amx|bool|PadnameUTF8|PADNAME pn |
| 217 | Whether PadnamePV is in UTF8. |
| 218 | |
| 219 | =for apidoc Amx|SV *|PadnameSV|PADNAME pn |
| 220 | Returns the pad name as an SV. This is currently just C<pn>. It will |
| 221 | begin returning a new mortal SV if pad names ever stop being SVs. |
| 222 | |
| 223 | =for apidoc m|bool|PadnameIsOUR|PADNAME pn |
| 224 | Whether this is an "our" variable. |
| 225 | |
| 226 | =for apidoc m|HV *|PadnameOURSTASH |
| 227 | The stash in which this "our" variable was declared. |
| 228 | |
| 229 | =for apidoc m|bool|PadnameOUTER|PADNAME pn |
| 230 | Whether this entry belongs to an outer pad. |
| 231 | |
| 232 | =for apidoc m|bool|PadnameIsSTATE|PADNAME pn |
| 233 | Whether this is a "state" variable. |
| 234 | |
| 235 | =for apidoc m|HV *|PadnameTYPE|PADNAME pn |
| 236 | The stash associated with a typed lexical. This returns the %Foo:: hash |
| 237 | for C<my Foo $bar>. |
| 238 | |
| 239 | |
| 240 | =for apidoc m|SV *|PAD_SETSV |PADOFFSET po|SV* sv |
| 241 | Set the slot at offset C<po> in the current pad to C<sv> |
| 242 | |
| 243 | =for apidoc m|void|PAD_SV |PADOFFSET po |
| 244 | Get the value at offset C<po> in the current pad |
| 245 | |
| 246 | =for apidoc m|SV *|PAD_SVl |PADOFFSET po |
| 247 | Lightweight and lvalue version of C<PAD_SV>. |
| 248 | Get or set the value at offset C<po> in the current pad. |
| 249 | Unlike C<PAD_SV>, does not print diagnostics with -DX. |
| 250 | For internal use only. |
| 251 | |
| 252 | =for apidoc m|SV *|PAD_BASE_SV |PADLIST padlist|PADOFFSET po |
| 253 | Get the value from slot C<po> in the base (DEPTH=1) pad of a padlist |
| 254 | |
| 255 | =for apidoc m|void|PAD_SET_CUR |PADLIST padlist|I32 n |
| 256 | Set the current pad to be pad C<n> in the padlist, saving |
| 257 | the previous current pad. NB currently this macro expands to a string too |
| 258 | long for some compilers, so it's best to replace it with |
| 259 | |
| 260 | SAVECOMPPAD(); |
| 261 | PAD_SET_CUR_NOSAVE(padlist,n); |
| 262 | |
| 263 | |
| 264 | =for apidoc m|void|PAD_SET_CUR_NOSAVE |PADLIST padlist|I32 n |
| 265 | like PAD_SET_CUR, but without the save |
| 266 | |
| 267 | =for apidoc m|void|PAD_SAVE_SETNULLPAD |
| 268 | Save the current pad then set it to null. |
| 269 | |
| 270 | =for apidoc m|void|PAD_SAVE_LOCAL|PAD *opad|PAD *npad |
| 271 | Save the current pad to the local variable opad, then make the |
| 272 | current pad equal to npad |
| 273 | |
| 274 | =for apidoc m|void|PAD_RESTORE_LOCAL|PAD *opad |
| 275 | Restore the old pad saved into the local variable opad by PAD_SAVE_LOCAL() |
| 276 | |
| 277 | =cut |
| 278 | */ |
| 279 | |
| 280 | #define PadlistARRAY(pl) (pl)->xpadl_alloc |
| 281 | #define PadlistMAX(pl) (pl)->xpadl_max |
| 282 | #define PadlistNAMES(pl) (*PadlistARRAY(pl)) |
| 283 | #define PadlistNAMESARRAY(pl) PadnamelistARRAY(PadlistNAMES(pl)) |
| 284 | #define PadlistNAMESMAX(pl) PadnamelistMAX(PadlistNAMES(pl)) |
| 285 | #define PadlistREFCNT(pl) 1 /* reserved for future use */ |
| 286 | |
| 287 | #define PadnamelistARRAY(pnl) AvARRAY(pnl) |
| 288 | #define PadnamelistMAX(pnl) AvFILLp(pnl) |
| 289 | |
| 290 | #define PadARRAY(pad) AvARRAY(pad) |
| 291 | #define PadMAX(pad) AvFILLp(pad) |
| 292 | |
| 293 | #define PadnamePV(pn) (SvPOKp(pn) ? SvPVX(pn) : NULL) |
| 294 | #define PadnameLEN(pn) SvCUR(pn) |
| 295 | #define PadnameUTF8(pn) !!SvUTF8(pn) |
| 296 | #define PadnameSV(pn) pn |
| 297 | #define PadnameIsOUR(pn) !!SvPAD_OUR(pn) |
| 298 | #define PadnameOURSTASH(pn) SvOURSTASH(pn) |
| 299 | #define PadnameOUTER(pn) !!SvFAKE(pn) |
| 300 | #define PadnameIsSTATE(pn) !!SvPAD_STATE(pn) |
| 301 | #define PadnameTYPE(pn) (SvPAD_TYPED(pn) ? SvSTASH(pn) : NULL) |
| 302 | |
| 303 | |
| 304 | #ifdef DEBUGGING |
| 305 | # define PAD_SV(po) pad_sv(po) |
| 306 | # define PAD_SETSV(po,sv) pad_setsv(po,sv) |
| 307 | #else |
| 308 | # define PAD_SV(po) (PL_curpad[po]) |
| 309 | # define PAD_SETSV(po,sv) PL_curpad[po] = (sv) |
| 310 | #endif |
| 311 | |
| 312 | #define PAD_SVl(po) (PL_curpad[po]) |
| 313 | |
| 314 | #define PAD_BASE_SV(padlist, po) \ |
| 315 | (PadlistARRAY(padlist)[1]) \ |
| 316 | ? AvARRAY(MUTABLE_AV((PadlistARRAY(padlist)[1])))[po] \ |
| 317 | : NULL; |
| 318 | |
| 319 | |
| 320 | #define PAD_SET_CUR_NOSAVE(padlist,nth) \ |
| 321 | PL_comppad = (PAD*) (PadlistARRAY(padlist)[nth]); \ |
| 322 | PL_curpad = AvARRAY(PL_comppad); \ |
| 323 | DEBUG_Xv(PerlIO_printf(Perl_debug_log, \ |
| 324 | "Pad 0x%"UVxf"[0x%"UVxf"] set_cur depth=%d\n", \ |
| 325 | PTR2UV(PL_comppad), PTR2UV(PL_curpad), (int)(nth))); |
| 326 | |
| 327 | |
| 328 | #define PAD_SET_CUR(padlist,nth) \ |
| 329 | SAVECOMPPAD(); \ |
| 330 | PAD_SET_CUR_NOSAVE(padlist,nth); |
| 331 | |
| 332 | |
| 333 | #define PAD_SAVE_SETNULLPAD() SAVECOMPPAD(); \ |
| 334 | PL_comppad = NULL; PL_curpad = NULL; \ |
| 335 | DEBUG_Xv(PerlIO_printf(Perl_debug_log, "Pad set_null\n")); |
| 336 | |
| 337 | #define PAD_SAVE_LOCAL(opad,npad) \ |
| 338 | opad = PL_comppad; \ |
| 339 | PL_comppad = (npad); \ |
| 340 | PL_curpad = PL_comppad ? AvARRAY(PL_comppad) : NULL; \ |
| 341 | DEBUG_Xv(PerlIO_printf(Perl_debug_log, \ |
| 342 | "Pad 0x%"UVxf"[0x%"UVxf"] save_local\n", \ |
| 343 | PTR2UV(PL_comppad), PTR2UV(PL_curpad))); |
| 344 | |
| 345 | #define PAD_RESTORE_LOCAL(opad) \ |
| 346 | assert(!opad || !SvIS_FREED(opad)); \ |
| 347 | PL_comppad = opad; \ |
| 348 | PL_curpad = PL_comppad ? AvARRAY(PL_comppad) : NULL; \ |
| 349 | DEBUG_Xv(PerlIO_printf(Perl_debug_log, \ |
| 350 | "Pad 0x%"UVxf"[0x%"UVxf"] restore_local\n", \ |
| 351 | PTR2UV(PL_comppad), PTR2UV(PL_curpad))); |
| 352 | |
| 353 | |
| 354 | /* |
| 355 | =for apidoc m|void|CX_CURPAD_SAVE|struct context |
| 356 | Save the current pad in the given context block structure. |
| 357 | |
| 358 | =for apidoc m|SV *|CX_CURPAD_SV|struct context|PADOFFSET po |
| 359 | Access the SV at offset po in the saved current pad in the given |
| 360 | context block structure (can be used as an lvalue). |
| 361 | |
| 362 | =cut |
| 363 | */ |
| 364 | |
| 365 | #define CX_CURPAD_SAVE(block) (block).oldcomppad = PL_comppad |
| 366 | #define CX_CURPAD_SV(block,po) (AvARRAY(MUTABLE_AV(((block).oldcomppad)))[po]) |
| 367 | |
| 368 | |
| 369 | /* |
| 370 | =for apidoc m|U32|PAD_COMPNAME_FLAGS|PADOFFSET po |
| 371 | Return the flags for the current compiling pad name |
| 372 | at offset C<po>. Assumes a valid slot entry. |
| 373 | |
| 374 | =for apidoc m|char *|PAD_COMPNAME_PV|PADOFFSET po |
| 375 | Return the name of the current compiling pad name |
| 376 | at offset C<po>. Assumes a valid slot entry. |
| 377 | |
| 378 | =for apidoc m|HV *|PAD_COMPNAME_TYPE|PADOFFSET po |
| 379 | Return the type (stash) of the current compiling pad name at offset |
| 380 | C<po>. Must be a valid name. Returns null if not typed. |
| 381 | |
| 382 | =for apidoc m|HV *|PAD_COMPNAME_OURSTASH|PADOFFSET po |
| 383 | Return the stash associated with an C<our> variable. |
| 384 | Assumes the slot entry is a valid C<our> lexical. |
| 385 | |
| 386 | =for apidoc m|STRLEN|PAD_COMPNAME_GEN|PADOFFSET po |
| 387 | The generation number of the name at offset C<po> in the current |
| 388 | compiling pad (lvalue). Note that C<SvUVX> is hijacked for this purpose. |
| 389 | |
| 390 | =for apidoc m|STRLEN|PAD_COMPNAME_GEN_set|PADOFFSET po|int gen |
| 391 | Sets the generation number of the name at offset C<po> in the current |
| 392 | ling pad (lvalue) to C<gen>. Note that C<SvUV_set> is hijacked for this purpose. |
| 393 | |
| 394 | =cut |
| 395 | |
| 396 | */ |
| 397 | |
| 398 | #define PAD_COMPNAME(po) PAD_COMPNAME_SV(po) |
| 399 | #define PAD_COMPNAME_SV(po) (*av_fetch(PL_comppad_name, (po), FALSE)) |
| 400 | #define PAD_COMPNAME_FLAGS(po) SvFLAGS(PAD_COMPNAME_SV(po)) |
| 401 | #define PAD_COMPNAME_FLAGS_isOUR(po) SvPAD_OUR(PAD_COMPNAME_SV(po)) |
| 402 | #define PAD_COMPNAME_PV(po) SvPV_nolen(PAD_COMPNAME_SV(po)) |
| 403 | |
| 404 | #define PAD_COMPNAME_TYPE(po) pad_compname_type(po) |
| 405 | |
| 406 | #define PAD_COMPNAME_OURSTASH(po) \ |
| 407 | (SvOURSTASH(PAD_COMPNAME_SV(po))) |
| 408 | |
| 409 | #define PAD_COMPNAME_GEN(po) ((STRLEN)SvUVX(AvARRAY(PL_comppad_name)[po])) |
| 410 | |
| 411 | #define PAD_COMPNAME_GEN_set(po, gen) SvUV_set(AvARRAY(PL_comppad_name)[po], (UV)(gen)) |
| 412 | |
| 413 | |
| 414 | /* |
| 415 | =for apidoc m|void|PAD_CLONE_VARS|PerlInterpreter *proto_perl|CLONE_PARAMS* param |
| 416 | Clone the state variables associated with running and compiling pads. |
| 417 | |
| 418 | =cut |
| 419 | */ |
| 420 | |
| 421 | /* NB - we set PL_comppad to null unless it points at a value that |
| 422 | * has already been dup'ed, ie it points to part of an active padlist. |
| 423 | * Otherwise PL_comppad ends up being a leaked scalar in code like |
| 424 | * the following: |
| 425 | * threads->create(sub { threads->create(sub {...} ) } ); |
| 426 | * where the second thread dups the outer sub's comppad but not the |
| 427 | * sub's CV or padlist. */ |
| 428 | |
| 429 | #define PAD_CLONE_VARS(proto_perl, param) \ |
| 430 | PL_comppad = av_dup(proto_perl->Icomppad, param); \ |
| 431 | PL_curpad = PL_comppad ? AvARRAY(PL_comppad) : NULL; \ |
| 432 | PL_comppad_name = av_dup(proto_perl->Icomppad_name, param); \ |
| 433 | PL_comppad_name_fill = proto_perl->Icomppad_name_fill; \ |
| 434 | PL_comppad_name_floor = proto_perl->Icomppad_name_floor; \ |
| 435 | PL_min_intro_pending = proto_perl->Imin_intro_pending; \ |
| 436 | PL_max_intro_pending = proto_perl->Imax_intro_pending; \ |
| 437 | PL_padix = proto_perl->Ipadix; \ |
| 438 | PL_padix_floor = proto_perl->Ipadix_floor; \ |
| 439 | PL_pad_reset_pending = proto_perl->Ipad_reset_pending; \ |
| 440 | PL_cop_seqmax = proto_perl->Icop_seqmax; |
| 441 | |
| 442 | /* |
| 443 | =for apidoc Am|PADOFFSET|pad_add_name_pvs|const char *name|U32 flags|HV *typestash|HV *ourstash |
| 444 | |
| 445 | Exactly like L</pad_add_name_pvn>, but takes a literal string instead |
| 446 | of a string/length pair. |
| 447 | |
| 448 | =cut |
| 449 | */ |
| 450 | |
| 451 | #define pad_add_name_pvs(name,flags,typestash,ourstash) \ |
| 452 | Perl_pad_add_name_pvn(aTHX_ STR_WITH_LEN(name), flags, typestash, ourstash) |
| 453 | |
| 454 | /* |
| 455 | =for apidoc Am|PADOFFSET|pad_findmy_pvs|const char *name|U32 flags |
| 456 | |
| 457 | Exactly like L</pad_findmy_pvn>, but takes a literal string instead |
| 458 | of a string/length pair. |
| 459 | |
| 460 | =cut |
| 461 | */ |
| 462 | |
| 463 | #define pad_findmy_pvs(name,flags) \ |
| 464 | Perl_pad_findmy_pvn(aTHX_ STR_WITH_LEN(name), flags) |
| 465 | |
| 466 | /* |
| 467 | * Local variables: |
| 468 | * c-indentation-style: bsd |
| 469 | * c-basic-offset: 4 |
| 470 | * indent-tabs-mode: nil |
| 471 | * End: |
| 472 | * |
| 473 | * ex: set ts=8 sts=4 sw=4 et: |
| 474 | */ |