| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * Generic mapping support |
| 4 | * |
| 5 | * (c) 2019 Straylight/Edgeware |
| 6 | */ |
| 7 | |
| 8 | /*----- Licensing notice --------------------------------------------------* |
| 9 | * |
| 10 | * This file is part of Pyke: the Python Kit for Extensions. |
| 11 | * |
| 12 | * Pyke is free software: you can redistribute it and/or modify it under |
| 13 | * the terms of the GNU General Public License as published by the Free |
| 14 | * Software Foundation; either version 2 of the License, or (at your |
| 15 | * option) any later version. |
| 16 | * |
| 17 | * Pyke is distributed in the hope that it will be useful, but WITHOUT |
| 18 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 20 | * for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with Pyke. If not, write to the Free Software Foundation, Inc., |
| 24 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 25 | */ |
| 26 | |
| 27 | /*----- Header files ------------------------------------------------------*/ |
| 28 | |
| 29 | #include "pyke.h" |
| 30 | |
| 31 | /*----- Iteration ---------------------------------------------------------*/ |
| 32 | |
| 33 | static PyTypeObject *keyiter_pytype, *itemiter_pytype, *valiter_pytype; |
| 34 | |
| 35 | union iterstate { |
| 36 | void *external; |
| 37 | void *internal[4]; |
| 38 | }; |
| 39 | |
| 40 | typedef struct iter_pyobj { |
| 41 | PyObject_HEAD |
| 42 | PyObject *map; |
| 43 | union iterstate iter; |
| 44 | } iter_pyobj; |
| 45 | #define ITER_MAP(o) (((iter_pyobj *)(o))->map) |
| 46 | #define ITER_ITER(o) (&((iter_pyobj *)(o))->iter) |
| 47 | #define ITER_EXTERNALP(o) \ |
| 48 | (GMAP_OPS(ITER_MAP(o))->isz > sizeof(union iterstate)) |
| 49 | #define ITER_I(o) (ITER_EXTERNALP(o) ? ITER_ITER(o)->external \ |
| 50 | : &ITER_ITER(o)->internal) |
| 51 | |
| 52 | static void *iter_init(PyObject *me, union iterstate *iter) |
| 53 | { |
| 54 | const gmap_ops *gmops = GMAP_OPS(me); |
| 55 | void *i; |
| 56 | |
| 57 | if (gmops->isz <= sizeof(*iter)) i = &iter->internal; |
| 58 | else { i = iter->external = PyObject_Malloc(gmops->isz); assert(i); } |
| 59 | gmops->iter_init(me, i); |
| 60 | return (i); |
| 61 | } |
| 62 | |
| 63 | static void iter_free(PyObject *me, union iterstate *iter) |
| 64 | { if (GMAP_OPS(me)->isz > sizeof(*iter)) PyObject_Free(iter->external); } |
| 65 | |
| 66 | static void iter_pydealloc(PyObject *me) |
| 67 | { |
| 68 | PyObject *map = ITER_MAP(me); |
| 69 | iter_free(map, ITER_ITER(me)); |
| 70 | Py_DECREF(map); FREEOBJ(me); |
| 71 | } |
| 72 | |
| 73 | static PyObject *gmap_mkiter(PyObject *me, PyTypeObject *ty) |
| 74 | { |
| 75 | iter_pyobj *iter = PyObject_NEW(iter_pyobj, ty); |
| 76 | |
| 77 | iter->map = me; Py_INCREF(me); |
| 78 | iter_init(me, &iter->iter); |
| 79 | return ((PyObject *)iter); |
| 80 | } |
| 81 | |
| 82 | static PyObject *keyiter_pynext(PyObject *me) |
| 83 | { |
| 84 | PyObject *map = ITER_MAP(me); |
| 85 | const struct gmap_ops *gmops = GMAP_OPS(map); |
| 86 | void *e = gmops->iter_next(map, ITER_I(me)); |
| 87 | |
| 88 | if (!e) return (0); |
| 89 | else return (gmops->entry_key(map, e)); |
| 90 | } |
| 91 | |
| 92 | static const PyTypeObject keyiter_pytype_skel = { |
| 93 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 94 | "_KeyIter", /* @tp_name@ */ |
| 95 | sizeof(iter_pyobj), /* @tp_basicsize@ */ |
| 96 | 0, /* @tp_itemsize@ */ |
| 97 | |
| 98 | iter_pydealloc, /* @tp_dealloc@ */ |
| 99 | 0, /* @tp_print@ */ |
| 100 | 0, /* @tp_getattr@ */ |
| 101 | 0, /* @tp_setattr@ */ |
| 102 | 0, /* @tp_compare@ */ |
| 103 | 0, /* @tp_repr@ */ |
| 104 | 0, /* @tp_as_number@ */ |
| 105 | 0, /* @tp_as_sequence@ */ |
| 106 | 0, /* @tp_as_mapping@ */ |
| 107 | 0, /* @tp_hash@ */ |
| 108 | 0, /* @tp_call@ */ |
| 109 | 0, /* @tp_str@ */ |
| 110 | 0, /* @tp_getattro@ */ |
| 111 | 0, /* @tp_setattro@ */ |
| 112 | 0, /* @tp_as_buffer@ */ |
| 113 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 114 | Py_TPFLAGS_BASETYPE, |
| 115 | |
| 116 | /* @tp_doc@ */ |
| 117 | "Iterates over the keys of a mapping.", |
| 118 | |
| 119 | 0, /* @tp_traverse@ */ |
| 120 | 0, /* @tp_clear@ */ |
| 121 | 0, /* @tp_richcompare@ */ |
| 122 | 0, /* @tp_weaklistoffset@ */ |
| 123 | PyObject_SelfIter, /* @tp_iter@ */ |
| 124 | keyiter_pynext, /* @tp_iternext@ */ |
| 125 | 0, /* @tp_methods@ */ |
| 126 | 0, /* @tp_members@ */ |
| 127 | 0, /* @tp_getset@ */ |
| 128 | 0, /* @tp_base@ */ |
| 129 | 0, /* @tp_dict@ */ |
| 130 | 0, /* @tp_descr_get@ */ |
| 131 | 0, /* @tp_descr_set@ */ |
| 132 | 0, /* @tp_dictoffset@ */ |
| 133 | 0, /* @tp_init@ */ |
| 134 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 135 | abstract_pynew, /* @tp_new@ */ |
| 136 | 0, /* @tp_free@ */ |
| 137 | 0 /* @tp_is_gc@ */ |
| 138 | }; |
| 139 | |
| 140 | static PyObject *valiter_pynext(PyObject *me) |
| 141 | { |
| 142 | PyObject *map = ITER_MAP(me); |
| 143 | const struct gmap_ops *gmops = GMAP_OPS(map); |
| 144 | void *e = gmops->iter_next(map, ITER_I(me)); |
| 145 | |
| 146 | if (!e) return (0); |
| 147 | else return (gmops->entry_value(map, e)); |
| 148 | } |
| 149 | |
| 150 | static const PyTypeObject valiter_pytype_skel = { |
| 151 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 152 | "_ValueIter", /* @tp_name@ */ |
| 153 | sizeof(iter_pyobj), /* @tp_basicsize@ */ |
| 154 | 0, /* @tp_itemsize@ */ |
| 155 | |
| 156 | iter_pydealloc, /* @tp_dealloc@ */ |
| 157 | 0, /* @tp_print@ */ |
| 158 | 0, /* @tp_getattr@ */ |
| 159 | 0, /* @tp_setattr@ */ |
| 160 | 0, /* @tp_compare@ */ |
| 161 | 0, /* @tp_repr@ */ |
| 162 | 0, /* @tp_as_number@ */ |
| 163 | 0, /* @tp_as_sequence@ */ |
| 164 | 0, /* @tp_as_mapping@ */ |
| 165 | 0, /* @tp_hash@ */ |
| 166 | 0, /* @tp_call@ */ |
| 167 | 0, /* @tp_str@ */ |
| 168 | 0, /* @tp_getattro@ */ |
| 169 | 0, /* @tp_setattro@ */ |
| 170 | 0, /* @tp_as_buffer@ */ |
| 171 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 172 | Py_TPFLAGS_BASETYPE, |
| 173 | |
| 174 | /* @tp_doc@ */ |
| 175 | "Iterates over the values of a mapping.", |
| 176 | |
| 177 | 0, /* @tp_traverse@ */ |
| 178 | 0, /* @tp_clear@ */ |
| 179 | 0, /* @tp_richcompare@ */ |
| 180 | 0, /* @tp_weaklistoffset@ */ |
| 181 | PyObject_SelfIter, /* @tp_iter@ */ |
| 182 | valiter_pynext, /* @tp_iternext@ */ |
| 183 | 0, /* @tp_methods@ */ |
| 184 | 0, /* @tp_members@ */ |
| 185 | 0, /* @tp_getset@ */ |
| 186 | 0, /* @tp_base@ */ |
| 187 | 0, /* @tp_dict@ */ |
| 188 | 0, /* @tp_descr_get@ */ |
| 189 | 0, /* @tp_descr_set@ */ |
| 190 | 0, /* @tp_dictoffset@ */ |
| 191 | 0, /* @tp_init@ */ |
| 192 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 193 | abstract_pynew, /* @tp_new@ */ |
| 194 | 0, /* @tp_free@ */ |
| 195 | 0 /* @tp_is_gc@ */ |
| 196 | }; |
| 197 | |
| 198 | static PyObject *itemiter_pynext(PyObject *me) |
| 199 | { |
| 200 | PyObject *map = ITER_MAP(me); |
| 201 | const struct gmap_ops *gmops = GMAP_OPS(map); |
| 202 | void *e = gmops->iter_next(map, ITER_I(me)); |
| 203 | PyObject *rc = 0; |
| 204 | |
| 205 | if (e) |
| 206 | rc = Py_BuildValue("(NN)", |
| 207 | gmops->entry_key(map, e), |
| 208 | gmops->entry_value(map, e)); |
| 209 | return (rc); |
| 210 | } |
| 211 | |
| 212 | static const PyTypeObject itemiter_pytype_skel = { |
| 213 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 214 | "_ItemIter", /* @tp_name@ */ |
| 215 | sizeof(iter_pyobj), /* @tp_basicsize@ */ |
| 216 | 0, /* @tp_itemsize@ */ |
| 217 | |
| 218 | iter_pydealloc, /* @tp_dealloc@ */ |
| 219 | 0, /* @tp_print@ */ |
| 220 | 0, /* @tp_getattr@ */ |
| 221 | 0, /* @tp_setattr@ */ |
| 222 | 0, /* @tp_compare@ */ |
| 223 | 0, /* @tp_repr@ */ |
| 224 | 0, /* @tp_as_number@ */ |
| 225 | 0, /* @tp_as_sequence@ */ |
| 226 | 0, /* @tp_as_mapping@ */ |
| 227 | 0, /* @tp_hash@ */ |
| 228 | 0, /* @tp_call@ */ |
| 229 | 0, /* @tp_str@ */ |
| 230 | 0, /* @tp_getattro@ */ |
| 231 | 0, /* @tp_setattro@ */ |
| 232 | 0, /* @tp_as_buffer@ */ |
| 233 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 234 | Py_TPFLAGS_BASETYPE, |
| 235 | |
| 236 | /* @tp_doc@ */ |
| 237 | "Iterates over the items of a mapping.", |
| 238 | |
| 239 | 0, /* @tp_traverse@ */ |
| 240 | 0, /* @tp_clear@ */ |
| 241 | 0, /* @tp_richcompare@ */ |
| 242 | 0, /* @tp_weaklistoffset@ */ |
| 243 | PyObject_SelfIter, /* @tp_iter@ */ |
| 244 | itemiter_pynext, /* @tp_iternext@ */ |
| 245 | 0, /* @tp_methods@ */ |
| 246 | 0, /* @tp_members@ */ |
| 247 | 0, /* @tp_getset@ */ |
| 248 | 0, /* @tp_base@ */ |
| 249 | 0, /* @tp_dict@ */ |
| 250 | 0, /* @tp_descr_get@ */ |
| 251 | 0, /* @tp_descr_set@ */ |
| 252 | 0, /* @tp_dictoffset@ */ |
| 253 | 0, /* @tp_init@ */ |
| 254 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 255 | abstract_pynew, /* @tp_new@ */ |
| 256 | 0, /* @tp_free@ */ |
| 257 | 0 /* @tp_is_gc@ */ |
| 258 | }; |
| 259 | |
| 260 | /*----- Mapping views -----------------------------------------------------*/ |
| 261 | |
| 262 | #ifdef PY3 |
| 263 | |
| 264 | static PyTypeObject *keyview_pytype, *itemview_pytype, *valview_pytype; |
| 265 | |
| 266 | typedef struct view_pyobj { |
| 267 | PyObject_HEAD |
| 268 | PyObject *map; |
| 269 | } view_pyobj; |
| 270 | #define VIEW_MAP(o) (((view_pyobj *)(o))->map) |
| 271 | |
| 272 | static PyObject *gmap_mkview(PyObject *me, PyTypeObject *ty) |
| 273 | { |
| 274 | view_pyobj *v = PyObject_NEW(view_pyobj, ty); |
| 275 | v->map = me; Py_INCREF(me); |
| 276 | return ((PyObject *)v); |
| 277 | } |
| 278 | |
| 279 | static void view_pydealloc(PyObject *me) |
| 280 | { Py_DECREF(VIEW_MAP(me)); FREEOBJ(me); } |
| 281 | |
| 282 | #define BINOP(op, update) \ |
| 283 | static PyObject *view_py##op(PyObject *me, PyObject *you) \ |
| 284 | { \ |
| 285 | PyObject *set = 0; \ |
| 286 | PyObject *rc = 0; \ |
| 287 | \ |
| 288 | set = PySet_New(me); if (!set) goto end; \ |
| 289 | if (!PyObject_CallMethod(set, #update, "(O)", you)) goto end; \ |
| 290 | rc = set; set = 0; \ |
| 291 | end: \ |
| 292 | Py_XDECREF(set); \ |
| 293 | return (rc); \ |
| 294 | } |
| 295 | BINOP(and, intersection_update) |
| 296 | BINOP(or, update) |
| 297 | BINOP(xor, symmetric_difference_update) |
| 298 | #undef BINOP |
| 299 | |
| 300 | static int all_contained_p(PyObject *x, PyObject *y) |
| 301 | { |
| 302 | PyObject *i = 0, *e; |
| 303 | int b, rc = -1; |
| 304 | |
| 305 | i = PyObject_GetIter(x); if (!i) goto end; |
| 306 | for (;;) { |
| 307 | e = PyIter_Next(i); if (!e) break; |
| 308 | b = PySequence_Contains(y, e); Py_DECREF(e); if (b < 0) goto end; |
| 309 | if (!b) { rc = 0; goto end; } |
| 310 | } |
| 311 | if (PyErr_Occurred()) goto end; |
| 312 | rc = 1; |
| 313 | end: |
| 314 | Py_XDECREF(i); |
| 315 | return (rc); |
| 316 | } |
| 317 | |
| 318 | static Py_ssize_t view_pysize(PyObject *me) |
| 319 | { return (PyMapping_Size(VIEW_MAP(me))); } |
| 320 | |
| 321 | static PyObject *view_pyrichcompare(PyObject *me, PyObject *you, int op) |
| 322 | { |
| 323 | PyObject *map = ITER_MAP(me); |
| 324 | Py_ssize_t mysz, yoursz; |
| 325 | int b; |
| 326 | |
| 327 | mysz = PyMapping_Size(map); if (mysz < 0) return (0); |
| 328 | yoursz = PyObject_Size(you); |
| 329 | if (yoursz < 0) { PyErr_Clear(); RETURN_NOTIMPL; } |
| 330 | |
| 331 | switch (op) { |
| 332 | case Py_EQ: |
| 333 | if (mysz != yoursz) RETURN_FALSE; |
| 334 | b = all_contained_p(you, me); |
| 335 | break; |
| 336 | case Py_NE: |
| 337 | if (mysz != yoursz) RETURN_TRUE; |
| 338 | b = all_contained_p(you, me); |
| 339 | break; |
| 340 | case Py_LT: |
| 341 | if (mysz >= yoursz) RETURN_FALSE; |
| 342 | b = all_contained_p(me, you); |
| 343 | break; |
| 344 | case Py_LE: |
| 345 | if (mysz > yoursz) RETURN_FALSE; |
| 346 | b = all_contained_p(me, you); |
| 347 | break; |
| 348 | case Py_GE: |
| 349 | if (mysz < yoursz) RETURN_FALSE; |
| 350 | b = all_contained_p(you, me); |
| 351 | break; |
| 352 | case Py_GT: |
| 353 | if (mysz <= yoursz) RETURN_FALSE; |
| 354 | b = all_contained_p(you, me); |
| 355 | break; |
| 356 | default: |
| 357 | abort(); |
| 358 | } |
| 359 | if (b < 0) return (0); |
| 360 | return (getbool(b)); |
| 361 | } |
| 362 | |
| 363 | static PyObject *keyview_pyiter(PyObject *me) |
| 364 | { return (gmap_mkiter(VIEW_MAP(me), keyiter_pytype)); } |
| 365 | |
| 366 | static int keyview_pyhaskey(PyObject *me, PyObject *k) |
| 367 | { |
| 368 | PyObject *map = VIEW_MAP(me); |
| 369 | const struct gmap_ops *gmops = GMAP_OPS(map); |
| 370 | return (gmops->lookup(map, k, 0) ? 1 : PyErr_Occurred() ? -1 : 0); |
| 371 | } |
| 372 | |
| 373 | static int itemview_pyhaskey(PyObject *me, PyObject *it) |
| 374 | { |
| 375 | PyObject *map = VIEW_MAP(me); |
| 376 | const struct gmap_ops *gmops = GMAP_OPS(map); |
| 377 | void *e; |
| 378 | int b; |
| 379 | PyObject *v; |
| 380 | |
| 381 | if (!PyTuple_Check(it) || PyTuple_GET_SIZE(it) != 2) return (0); |
| 382 | e = gmops->lookup(map, PyTuple_GET_ITEM(it, 0), 0); |
| 383 | if (!e) return (PyErr_Occurred() ? -1 : 0); |
| 384 | v = gmops->entry_value(map, e); if (!v) return (-1); |
| 385 | b = PyObject_RichCompareBool(v, PyTuple_GET_ITEM(it, 1), Py_EQ); |
| 386 | Py_DECREF(v); return (b); |
| 387 | } |
| 388 | |
| 389 | static PyObject *valview_pyiter(PyObject *me) |
| 390 | { return (gmap_mkiter(VIEW_MAP(me), valiter_pytype)); } |
| 391 | |
| 392 | static PyObject *itemview_pyiter(PyObject *me) |
| 393 | { return (gmap_mkiter(VIEW_MAP(me), itemiter_pytype)); } |
| 394 | |
| 395 | static const PyNumberMethods view_pynumber = { |
| 396 | 0, /* @nb_add@ */ |
| 397 | 0, /* @nb_subtract@ */ |
| 398 | 0, /* @nb_multiply@ */ |
| 399 | #ifdef PY2 |
| 400 | 0, /* @nb_divide@ */ |
| 401 | #endif |
| 402 | 0, /* @nb_remainder@ */ |
| 403 | 0, /* @nb_divmod@ */ |
| 404 | 0, /* @nb_power@ */ |
| 405 | 0, /* @nb_negative@ */ |
| 406 | 0, /* @nb_positive@ */ |
| 407 | 0, /* @nb_absolute@ */ |
| 408 | 0, /* @nb_nonzero@ */ |
| 409 | 0, /* @nb_invert@ */ |
| 410 | 0, /* @nb_lshift@ */ |
| 411 | 0, /* @nb_rshift@ */ |
| 412 | view_pyand, /* @nb_and@ */ |
| 413 | view_pyxor, /* @nb_xor@ */ |
| 414 | view_pyor, /* @nb_or@ */ |
| 415 | 0, /* @nb_coerce@ */ |
| 416 | 0, /* @nb_int@ */ |
| 417 | 0, /* @nb_long@ */ |
| 418 | 0, /* @nb_float@ */ |
| 419 | 0, /* @nb_oct@ */ |
| 420 | 0, /* @nb_hex@ */ |
| 421 | }; |
| 422 | |
| 423 | static const PySequenceMethods keyview_pysequence = { |
| 424 | view_pysize, /* @sq_length@ */ |
| 425 | 0, /* @sq_concat@ */ |
| 426 | 0, /* @sq_repeat@ */ |
| 427 | 0, /* @sq_item@ */ |
| 428 | 0, /* @sq_slice@ */ |
| 429 | 0, /* @sq_ass_item@ */ |
| 430 | 0, /* @sq_ass_slice@ */ |
| 431 | keyview_pyhaskey, /* @sq_contains@ */ |
| 432 | 0, /* @sq_inplace_concat@ */ |
| 433 | 0, /* @sq_inplace_repeat@ */ |
| 434 | }; |
| 435 | |
| 436 | static const PyTypeObject keyview_pytype_skel = { |
| 437 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 438 | "_KeyView", /* @tp_name@ */ |
| 439 | sizeof(view_pyobj), /* @tp_basicsize@ */ |
| 440 | 0, /* @tp_itemsize@ */ |
| 441 | |
| 442 | view_pydealloc, /* @tp_dealloc@ */ |
| 443 | 0, /* @tp_print@ */ |
| 444 | 0, /* @tp_getattr@ */ |
| 445 | 0, /* @tp_setattr@ */ |
| 446 | 0, /* @tp_compare@ */ |
| 447 | 0, /* @tp_repr@ */ |
| 448 | PYNUMBER(view), /* @tp_as_number@ */ |
| 449 | PYSEQUENCE(keyview), /* @tp_as_sequence@ */ |
| 450 | 0, /* @tp_as_mapping@ */ |
| 451 | 0, /* @tp_hash@ */ |
| 452 | 0, /* @tp_call@ */ |
| 453 | 0, /* @tp_str@ */ |
| 454 | 0, /* @tp_getattro@ */ |
| 455 | 0, /* @tp_setattro@ */ |
| 456 | 0, /* @tp_as_buffer@ */ |
| 457 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 458 | Py_TPFLAGS_BASETYPE, |
| 459 | |
| 460 | /* @tp_doc@ */ |
| 461 | "View of a mapping's keys.", |
| 462 | |
| 463 | 0, /* @tp_traverse@ */ |
| 464 | 0, /* @tp_clear@ */ |
| 465 | view_pyrichcompare, /* @tp_richcompare@ */ |
| 466 | 0, /* @tp_weaklistoffset@ */ |
| 467 | keyview_pyiter, /* @tp_iter@ */ |
| 468 | 0, /* @tp_iternext@ */ |
| 469 | 0, /* @tp_methods@ */ |
| 470 | 0, /* @tp_members@ */ |
| 471 | 0, /* @tp_getset@ */ |
| 472 | 0, /* @tp_base@ */ |
| 473 | 0, /* @tp_dict@ */ |
| 474 | 0, /* @tp_descr_get@ */ |
| 475 | 0, /* @tp_descr_set@ */ |
| 476 | 0, /* @tp_dictoffset@ */ |
| 477 | 0, /* @tp_init@ */ |
| 478 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 479 | abstract_pynew, /* @tp_new@ */ |
| 480 | 0, /* @tp_free@ */ |
| 481 | 0 /* @tp_is_gc@ */ |
| 482 | }; |
| 483 | |
| 484 | static const PySequenceMethods valview_pysequence = { |
| 485 | view_pysize, /* @sq_length@ */ |
| 486 | 0, /* @sq_concat@ */ |
| 487 | 0, /* @sq_repeat@ */ |
| 488 | 0, /* @sq_item@ */ |
| 489 | 0, /* @sq_slice@ */ |
| 490 | 0, /* @sq_ass_item@ */ |
| 491 | 0, /* @sq_ass_slice@ */ |
| 492 | 0, /* @sq_contains@ */ |
| 493 | 0, /* @sq_inplace_concat@ */ |
| 494 | 0, /* @sq_inplace_repeat@ */ |
| 495 | }; |
| 496 | |
| 497 | static const PyTypeObject valview_pytype_skel = { |
| 498 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 499 | "_ValueView", /* @tp_name@ */ |
| 500 | sizeof(view_pyobj), /* @tp_basicsize@ */ |
| 501 | 0, /* @tp_itemsize@ */ |
| 502 | |
| 503 | view_pydealloc, /* @tp_dealloc@ */ |
| 504 | 0, /* @tp_print@ */ |
| 505 | 0, /* @tp_getattr@ */ |
| 506 | 0, /* @tp_setattr@ */ |
| 507 | 0, /* @tp_compare@ */ |
| 508 | 0, /* @tp_repr@ */ |
| 509 | PYNUMBER(view), /* @tp_as_number@ */ |
| 510 | PYSEQUENCE(valview), /* @tp_as_sequence@ */ |
| 511 | 0, /* @tp_as_mapping@ */ |
| 512 | 0, /* @tp_hash@ */ |
| 513 | 0, /* @tp_call@ */ |
| 514 | 0, /* @tp_str@ */ |
| 515 | 0, /* @tp_getattro@ */ |
| 516 | 0, /* @tp_setattro@ */ |
| 517 | 0, /* @tp_as_buffer@ */ |
| 518 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 519 | Py_TPFLAGS_BASETYPE, |
| 520 | |
| 521 | /* @tp_doc@ */ |
| 522 | "View of a mapping's values.", |
| 523 | |
| 524 | 0, /* @tp_traverse@ */ |
| 525 | 0, /* @tp_clear@ */ |
| 526 | 0, /* @tp_richcompare@ */ |
| 527 | 0, /* @tp_weaklistoffset@ */ |
| 528 | valview_pyiter, /* @tp_iter@ */ |
| 529 | 0, /* @tp_iternext@ */ |
| 530 | 0, /* @tp_methods@ */ |
| 531 | 0, /* @tp_members@ */ |
| 532 | 0, /* @tp_getset@ */ |
| 533 | 0, /* @tp_base@ */ |
| 534 | 0, /* @tp_dict@ */ |
| 535 | 0, /* @tp_descr_get@ */ |
| 536 | 0, /* @tp_descr_set@ */ |
| 537 | 0, /* @tp_dictoffset@ */ |
| 538 | 0, /* @tp_init@ */ |
| 539 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 540 | abstract_pynew, /* @tp_new@ */ |
| 541 | 0, /* @tp_free@ */ |
| 542 | 0 /* @tp_is_gc@ */ |
| 543 | }; |
| 544 | |
| 545 | static const PySequenceMethods itemview_pysequence = { |
| 546 | view_pysize, /* @sq_length@ */ |
| 547 | 0, /* @sq_concat@ */ |
| 548 | 0, /* @sq_repeat@ */ |
| 549 | 0, /* @sq_item@ */ |
| 550 | 0, /* @sq_slice@ */ |
| 551 | 0, /* @sq_ass_item@ */ |
| 552 | 0, /* @sq_ass_slice@ */ |
| 553 | itemview_pyhaskey, /* @sq_contains@ */ |
| 554 | 0, /* @sq_inplace_concat@ */ |
| 555 | 0, /* @sq_inplace_repeat@ */ |
| 556 | }; |
| 557 | |
| 558 | static const PyTypeObject itemview_pytype_skel = { |
| 559 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 560 | "_ItemView", /* @tp_name@ */ |
| 561 | sizeof(view_pyobj), /* @tp_basicsize@ */ |
| 562 | 0, /* @tp_itemsize@ */ |
| 563 | |
| 564 | view_pydealloc, /* @tp_dealloc@ */ |
| 565 | 0, /* @tp_print@ */ |
| 566 | 0, /* @tp_getattr@ */ |
| 567 | 0, /* @tp_setattr@ */ |
| 568 | 0, /* @tp_compare@ */ |
| 569 | 0, /* @tp_repr@ */ |
| 570 | PYNUMBER(view), /* @tp_as_number@ */ |
| 571 | PYSEQUENCE(itemview), /* @tp_as_sequence@ */ |
| 572 | 0, /* @tp_as_mapping@ */ |
| 573 | 0, /* @tp_hash@ */ |
| 574 | 0, /* @tp_call@ */ |
| 575 | 0, /* @tp_str@ */ |
| 576 | 0, /* @tp_getattro@ */ |
| 577 | 0, /* @tp_setattro@ */ |
| 578 | 0, /* @tp_as_buffer@ */ |
| 579 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 580 | Py_TPFLAGS_BASETYPE, |
| 581 | |
| 582 | /* @tp_doc@ */ |
| 583 | "View of a mapping's key/value items.", |
| 584 | |
| 585 | 0, /* @tp_traverse@ */ |
| 586 | 0, /* @tp_clear@ */ |
| 587 | view_pyrichcompare, /* @tp_richcompare@ */ |
| 588 | 0, /* @tp_weaklistoffset@ */ |
| 589 | itemview_pyiter, /* @tp_iter@ */ |
| 590 | 0, /* @tp_iternext@ */ |
| 591 | 0, /* @tp_methods@ */ |
| 592 | 0, /* @tp_members@ */ |
| 593 | 0, /* @tp_getset@ */ |
| 594 | 0, /* @tp_base@ */ |
| 595 | 0, /* @tp_dict@ */ |
| 596 | 0, /* @tp_descr_get@ */ |
| 597 | 0, /* @tp_descr_set@ */ |
| 598 | 0, /* @tp_dictoffset@ */ |
| 599 | 0, /* @tp_init@ */ |
| 600 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 601 | abstract_pynew, /* @tp_new@ */ |
| 602 | 0, /* @tp_free@ */ |
| 603 | 0 /* @tp_is_gc@ */ |
| 604 | }; |
| 605 | |
| 606 | #endif |
| 607 | |
| 608 | /*----- Other mapping protocol support ------------------------------------*/ |
| 609 | |
| 610 | Py_ssize_t gmap_pysize(PyObject *me) |
| 611 | { |
| 612 | const gmap_ops *gmops = GMAP_OPS(me); |
| 613 | union iterstate iter; |
| 614 | void *i; |
| 615 | Py_ssize_t n = 0; |
| 616 | |
| 617 | i = iter_init(me, &iter); |
| 618 | while (gmops->iter_next(me, i)) n++; |
| 619 | iter_free(me, &iter); |
| 620 | return (n); |
| 621 | } |
| 622 | |
| 623 | PyObject *gmap_pylookup(PyObject *me, PyObject *key) |
| 624 | { |
| 625 | const gmap_ops *gmops = GMAP_OPS(me); |
| 626 | void *e = gmops->lookup(me, key, 0); |
| 627 | PyObject *rc = 0; |
| 628 | |
| 629 | if (!e) { if (!PyErr_Occurred()) MAPERR(key); else goto end; } |
| 630 | rc = gmops->entry_value(me, e); |
| 631 | end: |
| 632 | return (rc); |
| 633 | } |
| 634 | |
| 635 | int gmap_pystore(PyObject *me, PyObject *key, PyObject *value) |
| 636 | { |
| 637 | const gmap_ops *gmops = GMAP_OPS(me); |
| 638 | unsigned f; |
| 639 | void *e = gmops->lookup(me, key, &f); |
| 640 | int rc = -1; |
| 641 | |
| 642 | if (!e) goto end; |
| 643 | if (!value) |
| 644 | rc = gmops->del_entry(me, e); |
| 645 | else { |
| 646 | rc = gmops->set_entry(me, e, value); |
| 647 | if (rc && !f) gmops->del_entry(me, e); |
| 648 | } |
| 649 | rc = 0; |
| 650 | end: |
| 651 | return (rc); |
| 652 | } |
| 653 | |
| 654 | int gmap_pyhaskey(PyObject *me, PyObject *key) |
| 655 | { return (GMAP_OPS(me)->lookup(me, key, 0) ? 1 : PyErr_Occurred() ? -1 : 0); } |
| 656 | |
| 657 | const PySequenceMethods gmap_pysequence = { |
| 658 | 0, /* @sq_length@ */ |
| 659 | 0, /* @sq_concat@ */ |
| 660 | 0, /* @sq_repeat@ */ |
| 661 | 0, /* @sq_item@ */ |
| 662 | 0, /* @sq_slice@ */ |
| 663 | 0, /* @sq_ass_item@ */ |
| 664 | 0, /* @sq_ass_slice@ */ |
| 665 | gmap_pyhaskey, /* @sq_contains@ */ |
| 666 | 0, /* @sq_inplace_concat@ */ |
| 667 | 0 /* @sq_inplace_repeat@ */ |
| 668 | }; |
| 669 | |
| 670 | #ifdef PY3 |
| 671 | |
| 672 | PyObject *gmapmeth_keys(PyObject *me) |
| 673 | { return (gmap_mkview(me, keyview_pytype)); } |
| 674 | |
| 675 | PyObject *gmapmeth_values(PyObject *me) |
| 676 | { return (gmap_mkview(me, valview_pytype)); } |
| 677 | |
| 678 | PyObject *gmapmeth_items(PyObject *me) |
| 679 | { return (gmap_mkview(me, itemview_pytype)); } |
| 680 | |
| 681 | #else |
| 682 | |
| 683 | PyObject *gmapmeth_has_key(PyObject *me, PyObject *arg) |
| 684 | { |
| 685 | PyObject *k; |
| 686 | void *e; |
| 687 | if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0); |
| 688 | e = GMAP_OPS(me)->lookup(me, k, 0); |
| 689 | if (e) RETURN_TRUE; |
| 690 | else if (!PyErr_Occurred()) RETURN_FALSE; |
| 691 | else return (0); |
| 692 | } |
| 693 | |
| 694 | PyObject *gmapmeth_keys(PyObject *me) |
| 695 | { |
| 696 | const gmap_ops *gmops = GMAP_OPS(me); |
| 697 | union iterstate iter; void *i = 0, *e; |
| 698 | PyObject *l = 0, *k, *rc = 0; |
| 699 | int err; |
| 700 | |
| 701 | if ((l = PyList_New(0)) == 0) goto done; |
| 702 | i = iter_init(me, &iter); |
| 703 | while ((e = gmops->iter_next(me, i)) != 0) { |
| 704 | k = gmops->entry_key(me, e); |
| 705 | err = PyList_Append(l, k); |
| 706 | Py_DECREF(k); |
| 707 | if (err) goto done; |
| 708 | } |
| 709 | rc = l; l = 0; |
| 710 | done: |
| 711 | Py_XDECREF(l); |
| 712 | if (i) iter_free(me, &iter); |
| 713 | return (rc); |
| 714 | } |
| 715 | |
| 716 | PyObject *gmapmeth_values(PyObject *me) |
| 717 | { |
| 718 | const gmap_ops *gmops = GMAP_OPS(me); |
| 719 | union iterstate iter; void *i = 0, *e; |
| 720 | PyObject *l = 0, *v, *rc = 0; |
| 721 | int err; |
| 722 | |
| 723 | if ((l = PyList_New(0)) == 0) goto done; |
| 724 | i = iter_init(me, &iter); |
| 725 | while ((e = gmops->iter_next(me, i)) != 0) { |
| 726 | v = gmops->entry_value(me, e); |
| 727 | err = PyList_Append(l, v); |
| 728 | Py_DECREF(v); |
| 729 | if (err) goto done; |
| 730 | } |
| 731 | rc = l; l = 0; |
| 732 | done: |
| 733 | Py_XDECREF(l); |
| 734 | if (i) iter_free(me, &iter); |
| 735 | return (rc); |
| 736 | } |
| 737 | |
| 738 | PyObject *gmapmeth_items(PyObject *me) |
| 739 | { |
| 740 | const gmap_ops *gmops = GMAP_OPS(me); |
| 741 | union iterstate iter; void *i = 0, *e; |
| 742 | PyObject *l = 0, *z, *rc = 0; |
| 743 | int err; |
| 744 | |
| 745 | if ((l = PyList_New(0)) == 0) goto done; |
| 746 | i = iter_init(me, &iter); |
| 747 | while ((e = gmops->iter_next(me, i)) != 0) { |
| 748 | if ((z = Py_BuildValue("(NN)", |
| 749 | gmops->entry_key(me, e), |
| 750 | gmops->entry_value(me, e))) == 0) |
| 751 | goto done; |
| 752 | err = PyList_Append(l, z); |
| 753 | Py_XDECREF(z); |
| 754 | if (err) goto done; |
| 755 | } |
| 756 | rc = l; l = 0; |
| 757 | done: |
| 758 | Py_XDECREF(l); |
| 759 | if (i) iter_free(me, &iter); |
| 760 | return (rc); |
| 761 | } |
| 762 | |
| 763 | PyObject *gmapmeth_iterkeys(PyObject *me) |
| 764 | { return (gmap_mkiter(me, keyiter_pytype)); } |
| 765 | |
| 766 | PyObject *gmapmeth_itervalues(PyObject *me) |
| 767 | { return (gmap_mkiter(me, valiter_pytype)); } |
| 768 | |
| 769 | PyObject *gmapmeth_iteritems(PyObject *me) |
| 770 | { return (gmap_mkiter(me, itemiter_pytype)); } |
| 771 | |
| 772 | #endif |
| 773 | |
| 774 | PyObject *gmap_pyiter(PyObject *me) |
| 775 | { return gmap_mkiter(me, keyiter_pytype); } |
| 776 | |
| 777 | PyObject *gmapmeth_clear(PyObject *me) |
| 778 | { |
| 779 | const gmap_ops *gmops = GMAP_OPS(me); |
| 780 | union iterstate iter; |
| 781 | void *i, *e; |
| 782 | PyObject *rc = 0; |
| 783 | |
| 784 | i = iter_init(me, &iter); |
| 785 | for (;;) { |
| 786 | e = gmops->iter_next(me, i); if (!e) break; |
| 787 | if (gmops->del_entry(me, e)) goto end; |
| 788 | } |
| 789 | iter_free(me, &iter); |
| 790 | rc = me; Py_INCREF(me); |
| 791 | end: |
| 792 | return (rc); |
| 793 | } |
| 794 | |
| 795 | static const char *const def_kwlist[] = { "key", "default", 0 }; |
| 796 | #define DEF_KWLIST ((/*unconst*/ char **)def_kwlist) |
| 797 | |
| 798 | PyObject *gmapmeth_get(PyObject *me, PyObject *arg, PyObject *kw) |
| 799 | { |
| 800 | const gmap_ops *gmops = GMAP_OPS(me); |
| 801 | PyObject *k, *def = Py_None; |
| 802 | void *e; |
| 803 | |
| 804 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O|O:get", DEF_KWLIST, &k, &def)) |
| 805 | return (0); |
| 806 | e = gmops->lookup(me, k, 0); |
| 807 | if (e) return (gmops->entry_value(me, e)); |
| 808 | else if (!PyErr_Occurred()) RETURN_OBJ(def); |
| 809 | else return (0); |
| 810 | } |
| 811 | |
| 812 | PyObject *gmapmeth_setdefault(PyObject *me, PyObject *arg, PyObject *kw) |
| 813 | { |
| 814 | const gmap_ops *gmops = GMAP_OPS(me); |
| 815 | PyObject *k, *def = Py_None; |
| 816 | void *e; |
| 817 | unsigned f; |
| 818 | |
| 819 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O|O:setdefault", DEF_KWLIST, |
| 820 | &k, &def)) |
| 821 | return (0); |
| 822 | e = gmops->lookup(me, k, &f); |
| 823 | if (!e) return (0); |
| 824 | else if (f) return (gmops->entry_value(me, e)); |
| 825 | else if (gmops->set_entry(me, e, def)) return (0); |
| 826 | else RETURN_OBJ(def); |
| 827 | } |
| 828 | |
| 829 | PyObject *gmapmeth_pop(PyObject *me, PyObject *arg, PyObject *kw) |
| 830 | { |
| 831 | const gmap_ops *gmops = GMAP_OPS(me); |
| 832 | PyObject *k, *def = 0; |
| 833 | PyObject *rc = 0; |
| 834 | void *e; |
| 835 | |
| 836 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O|O:pop", DEF_KWLIST, &k, &def)) |
| 837 | goto end; |
| 838 | e = gmops->lookup(me, k, 0); |
| 839 | if (!e) { |
| 840 | if (PyErr_Occurred()) goto end; |
| 841 | else if (def) { rc = def; Py_INCREF(rc); } |
| 842 | else MAPERR(k); |
| 843 | } else { |
| 844 | rc = gmops->entry_value(me, e); |
| 845 | if (gmops->del_entry(me, e)) { Py_DECREF(rc); rc = 0; } |
| 846 | } |
| 847 | end: |
| 848 | return (rc); |
| 849 | } |
| 850 | |
| 851 | static int update_core(PyObject *me, PyObject *map) |
| 852 | { |
| 853 | const gmap_ops *gmops = GMAP_OPS(me); |
| 854 | PyObject *i = 0, *item = 0, *k = 0, *v = 0; |
| 855 | void *e; |
| 856 | unsigned foundp; |
| 857 | int rc = -1; |
| 858 | |
| 859 | v = PyObject_CallMethod(map, PY23("iteritems", "items"), 0); |
| 860 | #ifdef PY3 |
| 861 | if (v) { i = PyObject_GetIter(v); Py_DECREF(v); v = 0; } |
| 862 | #else |
| 863 | i = v; v = 0; |
| 864 | #endif |
| 865 | |
| 866 | if (i) { |
| 867 | for (;;) { |
| 868 | item = PyIter_Next(i); if (!item) break; |
| 869 | if (!PyTuple_Check(item) || PyTuple_GET_SIZE(item) != 2) |
| 870 | TYERR("wanted a pair"); |
| 871 | k = PyTuple_GET_ITEM(item, 0); Py_INCREF(k); |
| 872 | v = PyTuple_GET_ITEM(item, 1); Py_INCREF(v); |
| 873 | e = gmops->lookup(me, k, &foundp); if (!e) goto end; |
| 874 | if (gmops->set_entry(me, e, v)) goto end; |
| 875 | Py_DECREF(item); Py_DECREF(k); Py_DECREF(v); item = k = v = 0; |
| 876 | } |
| 877 | if (PyErr_Occurred()) goto end; |
| 878 | } else { |
| 879 | PyErr_Clear(); |
| 880 | i = PyObject_GetIter(map); if (!i) goto end; |
| 881 | for (;;) { |
| 882 | k = PyIter_Next(i); if (!k) goto end; |
| 883 | v = PyObject_GetItem(map, k); if (!v) goto end; |
| 884 | e = gmops->lookup(me, k, &foundp); if (!e) goto end; |
| 885 | if (gmops->set_entry(me, e, v)) goto end; |
| 886 | Py_DECREF(k); Py_DECREF(v); k = v = 0; |
| 887 | } |
| 888 | if (PyErr_Occurred()) goto end; |
| 889 | } |
| 890 | rc = 0; |
| 891 | end: |
| 892 | Py_XDECREF(i); Py_XDECREF(item); |
| 893 | Py_XDECREF(k); Py_XDECREF(v); |
| 894 | return (rc); |
| 895 | } |
| 896 | |
| 897 | PyObject *gmapmeth_update(PyObject *me, PyObject *arg, PyObject *kw) |
| 898 | { |
| 899 | PyObject *map = 0; |
| 900 | |
| 901 | if (!PyArg_ParseTuple(arg, "|O:update", &map)) return (0); |
| 902 | if (map && update_core(me, map)) return (0); |
| 903 | if (kw && update_core(me, kw)) return (0); |
| 904 | RETURN_ME; |
| 905 | } |
| 906 | |
| 907 | PyObject *gmapmeth_popitem(PyObject *me) |
| 908 | { |
| 909 | const gmap_ops *gmops = GMAP_OPS(me); |
| 910 | union iterstate iter; |
| 911 | void *i; |
| 912 | PyObject *rc = 0; |
| 913 | void *e; |
| 914 | |
| 915 | i = iter_init(me, &iter); |
| 916 | e = gmops->iter_next(me, i); |
| 917 | iter_free(me, &iter); |
| 918 | if (!e) |
| 919 | MAPERR(Py_None); |
| 920 | else { |
| 921 | rc = Py_BuildValue("(NN)", |
| 922 | gmops->entry_key(me, e), gmops->entry_value(me, e)); |
| 923 | if (gmops->del_entry(me, e)) { Py_DECREF(rc); rc = 0; } |
| 924 | } |
| 925 | end: |
| 926 | return (rc); |
| 927 | } |
| 928 | |
| 929 | const PyMethodDef gmapro_pymethods[] = { |
| 930 | GMAP_ROMETHODS |
| 931 | { 0 } |
| 932 | }; |
| 933 | |
| 934 | const PyMethodDef gmap_pymethods[] = { |
| 935 | GMAP_METHODS |
| 936 | { 0 } |
| 937 | }; |
| 938 | |
| 939 | /*----- Submodule initialization ------------------------------------------*/ |
| 940 | |
| 941 | void pyke_gmap_pyinit(void) |
| 942 | { |
| 943 | INITTYPE(keyiter, root); |
| 944 | INITTYPE(itemiter, root); |
| 945 | INITTYPE(valiter, root); |
| 946 | #ifdef PY3 |
| 947 | INITTYPE(keyview, root); |
| 948 | INITTYPE(valview, root); |
| 949 | INITTYPE(itemview, root); |
| 950 | #endif |
| 951 | } |
| 952 | |
| 953 | void pyke_gmap_pyinsert(PyObject *mod) |
| 954 | { |
| 955 | INSERT("_KeyIter", keyiter_pytype); |
| 956 | INSERT("_ValueIter", valiter_pytype); |
| 957 | INSERT("_ItemIter", itemiter_pytype); |
| 958 | #ifdef PY3 |
| 959 | INSERT("_KeyView", keyview_pytype); |
| 960 | INSERT("_ValueView", valview_pytype); |
| 961 | INSERT("_ItemView", itemview_pytype); |
| 962 | #endif |
| 963 | } |
| 964 | |
| 965 | /*----- That's all, folks -------------------------------------------------*/ |