objdict.c 18.1 KB
Newer Older
xbe's avatar
xbe committed
1
#include <stdbool.h>
2
3
4
#include <string.h>
#include <assert.h>

5
#include "mpconfig.h"
6
7
#include "nlr.h"
#include "misc.h"
8
#include "qstr.h"
9
#include "obj.h"
10
#include "objtuple.h"
11
12
#include "runtime0.h"
#include "runtime.h"
13
#include "builtin.h"
14

15
16
STATIC mp_obj_t mp_obj_new_dict_iterator(mp_obj_dict_t *dict, int cur);
STATIC mp_map_elem_t *dict_it_iternext_elem(mp_obj_t self_in);
17
STATIC mp_obj_t dict_copy(mp_obj_t self_in);
John R. Lenton's avatar
John R. Lenton committed
18

19
STATIC void dict_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
20
21
22
    mp_obj_dict_t *self = self_in;
    bool first = true;
    print(env, "{");
John R. Lenton's avatar
John R. Lenton committed
23
24
    mp_obj_t *dict_iter = mp_obj_new_dict_iterator(self, 0);
    mp_map_elem_t *next = NULL;
25
    while ((next = dict_it_iternext_elem(dict_iter)) != MP_OBJ_STOP_ITERATION) {
John R. Lenton's avatar
John R. Lenton committed
26
27
        if (!first) {
            print(env, ", ");
28
        }
John R. Lenton's avatar
John R. Lenton committed
29
        first = false;
30
        mp_obj_print_helper(print, env, next->key, PRINT_REPR);
John R. Lenton's avatar
John R. Lenton committed
31
        print(env, ": ");
32
        mp_obj_print_helper(print, env, next->value, PRINT_REPR);
33
34
35
36
    }
    print(env, "}");
}

37
STATIC mp_obj_t dict_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
38
39
40
41
42
43
    mp_obj_t dict;
    switch (n_args) {
        case 0:
            dict = mp_obj_new_dict(0);
            break;

44
        case 1: {
45
46
47
48
            if (MP_OBJ_IS_TYPE(args[0], &mp_type_dict)) {
                return dict_copy(args[0]);
            }
            // TODO create dict from an arbitrary mapping!
49
50
51
52
53

            // Make dict from iterable of pairs
            mp_obj_t iterable = mp_getiter(args[0]);
            mp_obj_t dict = mp_obj_new_dict(0);
            // TODO: support arbitrary seq as a pair
54
            mp_obj_t item;
55
            while ((item = mp_iternext(iterable)) != MP_OBJ_STOP_ITERATION) {
56
57
58
                mp_obj_t *sub_items;
                mp_obj_get_array_fixed_n(item, 2, &sub_items);
                mp_obj_dict_store(dict, sub_items[0], sub_items[1]);
59
60
61
            }
            return dict;
        }
62
63

        default:
64
            nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "dict takes at most 1 argument"));
65
66
67
68
69
70
71
72
    }

    // add to the new dict any keyword args
    for (const mp_obj_t *a = args + n_args; n_kw > 0; n_kw--, a += 2) {
        mp_obj_dict_store(dict, a[0], a[1]);
    }

    return dict;
73
74
}

75
STATIC mp_obj_t dict_unary_op(int op, mp_obj_t self_in) {
76
77
    mp_obj_dict_t *self = self_in;
    switch (op) {
Damien George's avatar
Damien George committed
78
79
        case MP_UNARY_OP_BOOL: return MP_BOOL(self->map.used != 0);
        case MP_UNARY_OP_LEN: return MP_OBJ_NEW_SMALL_INT((machine_int_t)self->map.used);
80
        default: return MP_OBJ_NOT_SUPPORTED;
81
82
83
    }
}

84
STATIC mp_obj_t dict_binary_op(int op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
85
86
    mp_obj_dict_t *o = lhs_in;
    switch (op) {
87
        case MP_BINARY_OP_IN: {
88
            mp_map_elem_t *elem = mp_map_lookup(&o->map, rhs_in, MP_MAP_LOOKUP);
89
            return MP_BOOL(elem != NULL);
90
        }
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
        case MP_BINARY_OP_EQUAL: {
            if (MP_OBJ_IS_TYPE(rhs_in, &mp_type_dict)) {
                mp_obj_dict_t *rhs = rhs_in;
                if (o->map.used != rhs->map.used) {
                    return mp_const_false;
                }

                machine_uint_t size = o->map.alloc;
                mp_map_t *map = &o->map;

                for (machine_uint_t i = 0; i < size; i++) {
                    if (MP_MAP_SLOT_IS_FILLED(map, i)) {
                        mp_map_elem_t *elem = mp_map_lookup(&rhs->map, map->table[i].key, MP_MAP_LOOKUP);
                        if (elem == NULL || !mp_obj_equal(map->table[i].value, elem->value)) {
                            return mp_const_false;
                        }
                    }
                }
                return mp_const_true;
110
111
112
            } else {
                // dict is not equal to instance of any other type
                return mp_const_false;
113
114
            }
        }
115
116
        default:
            // op not supported
117
            return MP_OBJ_NOT_SUPPORTED;
118
119
120
    }
}

121
STATIC mp_obj_t dict_subscr(mp_obj_t self_in, mp_obj_t index, mp_obj_t value) {
122
    if (value == MP_OBJ_NULL) {
123
        // delete
124
        mp_obj_dict_delete(self_in, index);
125
126
127
128
129
130
131
132
133
134
        return mp_const_none;
    } else if (value == MP_OBJ_SENTINEL) {
        // load
        mp_obj_dict_t *self = self_in;
        mp_map_elem_t *elem = mp_map_lookup(&self->map, index, MP_MAP_LOOKUP);
        if (elem == NULL) {
            nlr_raise(mp_obj_new_exception_msg(&mp_type_KeyError, "<value>"));
        } else {
            return elem->value;
        }
135
    } else {
136
        // store
137
        mp_obj_dict_store(self_in, index, value);
138
        return mp_const_none;
139
140
    }
}
John R. Lenton's avatar
John R. Lenton committed
141
142
143
144
145
146
147
148
149
150

/******************************************************************************/
/* dict iterator                                                              */

typedef struct _mp_obj_dict_it_t {
    mp_obj_base_t base;
    mp_obj_dict_t *dict;
    machine_uint_t cur;
} mp_obj_dict_it_t;

151
STATIC mp_map_elem_t *dict_it_iternext_elem(mp_obj_t self_in) {
John R. Lenton's avatar
John R. Lenton committed
152
153
    mp_obj_dict_it_t *self = self_in;
    machine_uint_t max = self->dict->map.alloc;
154
    mp_map_t *map = &self->dict->map;
John R. Lenton's avatar
John R. Lenton committed
155
156

    for (int i = self->cur; i < max; i++) {
157
        if (MP_MAP_SLOT_IS_FILLED(map, i)) {
John R. Lenton's avatar
John R. Lenton committed
158
            self->cur = i + 1;
159
            return &(map->table[i]);
John R. Lenton's avatar
John R. Lenton committed
160
161
162
        }
    }

163
    return MP_OBJ_STOP_ITERATION;
John R. Lenton's avatar
John R. Lenton committed
164
165
166
167
168
}

mp_obj_t dict_it_iternext(mp_obj_t self_in) {
    mp_map_elem_t *next = dict_it_iternext_elem(self_in);

169
    if (next != MP_OBJ_STOP_ITERATION) {
John R. Lenton's avatar
John R. Lenton committed
170
171
        return next->key;
    } else {
172
        return MP_OBJ_STOP_ITERATION;
John R. Lenton's avatar
John R. Lenton committed
173
174
175
    }
}

176
STATIC const mp_obj_type_t mp_type_dict_it = {
177
    { &mp_type_type },
178
    .name = MP_QSTR_iterator,
179
    .getiter = mp_identity,
John R. Lenton's avatar
John R. Lenton committed
180
181
182
    .iternext = dict_it_iternext,
};

183
STATIC mp_obj_t mp_obj_new_dict_iterator(mp_obj_dict_t *dict, int cur) {
John R. Lenton's avatar
John R. Lenton committed
184
    mp_obj_dict_it_t *o = m_new_obj(mp_obj_dict_it_t);
185
    o->base.type = &mp_type_dict_it;
John R. Lenton's avatar
John R. Lenton committed
186
187
188
189
190
    o->dict = dict;
    o->cur = cur;
    return o;
}

191
STATIC mp_obj_t dict_getiter(mp_obj_t o_in) {
John R. Lenton's avatar
John R. Lenton committed
192
193
194
195
196
197
    return mp_obj_new_dict_iterator(o_in, 0);
}

/******************************************************************************/
/* dict methods                                                               */

198
STATIC mp_obj_t dict_clear(mp_obj_t self_in) {
199
    assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
John R. Lenton's avatar
John R. Lenton committed
200
201
202
203
204
205
    mp_obj_dict_t *self = self_in;

    mp_map_clear(&self->map);

    return mp_const_none;
}
206
STATIC MP_DEFINE_CONST_FUN_OBJ_1(dict_clear_obj, dict_clear);
207

208
STATIC mp_obj_t dict_copy(mp_obj_t self_in) {
209
    assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
John R. Lenton's avatar
John R. Lenton committed
210
211
212
    mp_obj_dict_t *self = self_in;
    mp_obj_dict_t *other = mp_obj_new_dict(self->map.alloc);
    other->map.used = self->map.used;
213
214
    other->map.all_keys_are_qstrs = self->map.all_keys_are_qstrs;
    other->map.table_is_fixed_array = 0;
John R. Lenton's avatar
John R. Lenton committed
215
216
217
    memcpy(other->map.table, self->map.table, self->map.alloc * sizeof(mp_map_elem_t));
    return other;
}
218
STATIC MP_DEFINE_CONST_FUN_OBJ_1(dict_copy_obj, dict_copy);
John R. Lenton's avatar
John R. Lenton committed
219

220
// this is a classmethod
221
STATIC mp_obj_t dict_fromkeys(uint n_args, const mp_obj_t *args) {
222
    assert(2 <= n_args && n_args <= 3);
Damien George's avatar
Damien George committed
223
    mp_obj_t iter = mp_getiter(args[1]);
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
    mp_obj_t len = mp_obj_len_maybe(iter);
    mp_obj_t value = mp_const_none;
    mp_obj_t next = NULL;
    mp_obj_dict_t *self = NULL;

    if (n_args > 2) {
        value = args[2];
    }

    if (len == MP_OBJ_NULL) {
        /* object's type doesn't have a __len__ slot */
        self = mp_obj_new_dict(0);
    } else {
        self = mp_obj_new_dict(MP_OBJ_SMALL_INT_VALUE(len));
    }

240
    while ((next = mp_iternext(iter)) != MP_OBJ_STOP_ITERATION) {
241
242
243
244
245
        mp_map_lookup(&self->map, next, MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = value;
    }

    return self;
}
246
247
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(dict_fromkeys_fun_obj, 2, 3, dict_fromkeys);
STATIC MP_DEFINE_CONST_CLASSMETHOD_OBJ(dict_fromkeys_obj, (const mp_obj_t)&dict_fromkeys_fun_obj);
248

249
STATIC mp_obj_t dict_get_helper(mp_map_t *self, mp_obj_t key, mp_obj_t deflt, mp_map_lookup_kind_t lookup_kind) {
250
    mp_map_elem_t *elem = mp_map_lookup(self, key, lookup_kind);
John R. Lenton's avatar
John R. Lenton committed
251
252
    mp_obj_t value;
    if (elem == NULL || elem->value == NULL) {
John R. Lenton's avatar
John R. Lenton committed
253
        if (deflt == NULL) {
254
            if (lookup_kind == MP_MAP_LOOKUP_REMOVE_IF_FOUND) {
255
                nlr_raise(mp_obj_new_exception_msg(&mp_type_KeyError, "<value>"));
John R. Lenton's avatar
John R. Lenton committed
256
            } else {
John R. Lenton's avatar
John R. Lenton committed
257
                value = mp_const_none;
John R. Lenton's avatar
John R. Lenton committed
258
259
            }
        } else {
John R. Lenton's avatar
John R. Lenton committed
260
            value = deflt;
John R. Lenton's avatar
John R. Lenton committed
261
262
        }
    } else {
John R. Lenton's avatar
John R. Lenton committed
263
        value = elem->value;
John R. Lenton's avatar
John R. Lenton committed
264
    }
265
    if (lookup_kind == MP_MAP_LOOKUP_ADD_IF_NOT_FOUND) {
John R. Lenton's avatar
John R. Lenton committed
266
267
268
        elem->value = value;
    }
    return value;
John R. Lenton's avatar
John R. Lenton committed
269
270
}

271
STATIC mp_obj_t dict_get(uint n_args, const mp_obj_t *args) {
John R. Lenton's avatar
John R. Lenton committed
272
    assert(2 <= n_args && n_args <= 3);
273
    assert(MP_OBJ_IS_TYPE(args[0], &mp_type_dict));
John R. Lenton's avatar
John R. Lenton committed
274

John R. Lenton's avatar
John R. Lenton committed
275
276
277
    return dict_get_helper(&((mp_obj_dict_t *)args[0])->map,
                           args[1],
                           n_args == 3 ? args[2] : NULL,
278
                           MP_MAP_LOOKUP);
John R. Lenton's avatar
John R. Lenton committed
279
}
280
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(dict_get_obj, 2, 3, dict_get);
John R. Lenton's avatar
John R. Lenton committed
281

282
STATIC mp_obj_t dict_pop(uint n_args, const mp_obj_t *args) {
John R. Lenton's avatar
John R. Lenton committed
283
    assert(2 <= n_args && n_args <= 3);
284
    assert(MP_OBJ_IS_TYPE(args[0], &mp_type_dict));
John R. Lenton's avatar
John R. Lenton committed
285
286
287
288

    return dict_get_helper(&((mp_obj_dict_t *)args[0])->map,
                           args[1],
                           n_args == 3 ? args[2] : NULL,
289
                           MP_MAP_LOOKUP_REMOVE_IF_FOUND);
John R. Lenton's avatar
John R. Lenton committed
290
}
291
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(dict_pop_obj, 2, 3, dict_pop);
John R. Lenton's avatar
John R. Lenton committed
292
293


294
STATIC mp_obj_t dict_setdefault(uint n_args, const mp_obj_t *args) {
John R. Lenton's avatar
John R. Lenton committed
295
    assert(2 <= n_args && n_args <= 3);
296
    assert(MP_OBJ_IS_TYPE(args[0], &mp_type_dict));
John R. Lenton's avatar
John R. Lenton committed
297
298
299
300

    return dict_get_helper(&((mp_obj_dict_t *)args[0])->map,
                           args[1],
                           n_args == 3 ? args[2] : NULL,
301
                           MP_MAP_LOOKUP_ADD_IF_NOT_FOUND);
John R. Lenton's avatar
John R. Lenton committed
302
}
303
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(dict_setdefault_obj, 2, 3, dict_setdefault);
John R. Lenton's avatar
John R. Lenton committed
304

John R. Lenton's avatar
John R. Lenton committed
305

306
STATIC mp_obj_t dict_popitem(mp_obj_t self_in) {
307
    assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
John R. Lenton's avatar
John R. Lenton committed
308
309
    mp_obj_dict_t *self = self_in;
    if (self->map.used == 0) {
310
        nlr_raise(mp_obj_new_exception_msg(&mp_type_KeyError, "popitem(): dictionary is empty"));
John R. Lenton's avatar
John R. Lenton committed
311
312
313
314
315
316
317
    }
    mp_obj_dict_it_t *iter = mp_obj_new_dict_iterator(self, 0);

    mp_map_elem_t *next = dict_it_iternext_elem(iter);
    self->map.used--;
    mp_obj_t items[] = {next->key, next->value};
    next->key = NULL;
John R. Lenton's avatar
John R. Lenton committed
318
    next->value = NULL;
John R. Lenton's avatar
John R. Lenton committed
319
320
321
322
    mp_obj_t tuple = mp_obj_new_tuple(2, items);

    return tuple;
}
323
STATIC MP_DEFINE_CONST_FUN_OBJ_1(dict_popitem_obj, dict_popitem);
John R. Lenton's avatar
John R. Lenton committed
324

325
STATIC mp_obj_t dict_update(mp_obj_t self_in, mp_obj_t iterable) {
326
    assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
327
328
    mp_obj_dict_t *self = self_in;
    /* TODO: check for the "keys" method */
Damien George's avatar
Damien George committed
329
    mp_obj_t iter = mp_getiter(iterable);
330
    mp_obj_t next = NULL;
331
    while ((next = mp_iternext(iter)) != MP_OBJ_STOP_ITERATION) {
Damien George's avatar
Damien George committed
332
333
334
335
        mp_obj_t inneriter = mp_getiter(next);
        mp_obj_t key = mp_iternext(inneriter);
        mp_obj_t value = mp_iternext(inneriter);
        mp_obj_t stop = mp_iternext(inneriter);
336
337
338
        if (key == MP_OBJ_STOP_ITERATION
            || value == MP_OBJ_STOP_ITERATION
            || stop != MP_OBJ_STOP_ITERATION) {
339
            nlr_raise(mp_obj_new_exception_msg(
340
                         &mp_type_ValueError,
341
342
                         "dictionary update sequence has the wrong length"));
        } else {
343
            mp_map_lookup(&self->map, key, MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = value;
344
345
346
347
348
        }
    }

    return mp_const_none;
}
349
STATIC MP_DEFINE_CONST_FUN_OBJ_2(dict_update_obj, dict_update);
350

John R. Lenton's avatar
John R. Lenton committed
351

352
353
354
/******************************************************************************/
/* dict views                                                                 */

355
356
STATIC const mp_obj_type_t dict_view_type;
STATIC const mp_obj_type_t dict_view_it_type;
357
358
359
360
361
362
363

typedef enum _mp_dict_view_kind_t {
    MP_DICT_VIEW_ITEMS,
    MP_DICT_VIEW_KEYS,
    MP_DICT_VIEW_VALUES,
} mp_dict_view_kind_t;

364
STATIC char *mp_dict_view_names[] = {"dict_items", "dict_keys", "dict_values"};
365
366
367
368
369
370
371
372
373
374
375
376
377
378

typedef struct _mp_obj_dict_view_it_t {
    mp_obj_base_t base;
    mp_dict_view_kind_t kind;
    mp_obj_dict_it_t *iter;
    machine_uint_t cur;
} mp_obj_dict_view_it_t;

typedef struct _mp_obj_dict_view_t {
    mp_obj_base_t base;
    mp_obj_dict_t *dict;
    mp_dict_view_kind_t kind;
} mp_obj_dict_view_t;

379
STATIC mp_obj_t dict_view_it_iternext(mp_obj_t self_in) {
380
381
382
383
    assert(MP_OBJ_IS_TYPE(self_in, &dict_view_it_type));
    mp_obj_dict_view_it_t *self = self_in;
    mp_map_elem_t *next = dict_it_iternext_elem(self->iter);

384
    if (next != MP_OBJ_STOP_ITERATION) {
385
        switch (self->kind) {
386
387
388
389
390
391
392
393
394
395
396
397
            case MP_DICT_VIEW_ITEMS:
            {
                mp_obj_t items[] = {next->key, next->value};
                return mp_obj_new_tuple(2, items);
            }
            case MP_DICT_VIEW_KEYS:
                return next->key;
            case MP_DICT_VIEW_VALUES:
                return next->value;
            default:
                assert(0);          /* can't happen */
                return mp_const_none;
398
399
        }
    } else {
400
        return MP_OBJ_STOP_ITERATION;
401
402
403
    }
}

404
STATIC const mp_obj_type_t dict_view_it_type = {
405
    { &mp_type_type },
406
    .name = MP_QSTR_iterator,
407
    .getiter = mp_identity,
408
409
410
    .iternext = dict_view_it_iternext,
};

411
STATIC mp_obj_t dict_view_getiter(mp_obj_t view_in) {
412
413
414
415
416
417
418
419
420
    assert(MP_OBJ_IS_TYPE(view_in, &dict_view_type));
    mp_obj_dict_view_t *view = view_in;
    mp_obj_dict_view_it_t *o = m_new_obj(mp_obj_dict_view_it_t);
    o->base.type = &dict_view_it_type;
    o->kind = view->kind;
    o->iter = mp_obj_new_dict_iterator(view->dict, 0);
    return o;
}

421
STATIC void dict_view_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
422
423
424
425
426
427
428
    assert(MP_OBJ_IS_TYPE(self_in, &dict_view_type));
    mp_obj_dict_view_t *self = self_in;
    bool first = true;
    print(env, mp_dict_view_names[self->kind]);
    print(env, "([");
    mp_obj_t *self_iter = dict_view_getiter(self);
    mp_obj_t *next = NULL;
429
    while ((next = dict_view_it_iternext(self_iter)) != MP_OBJ_STOP_ITERATION) {
430
431
432
433
        if (!first) {
            print(env, ", ");
        }
        first = false;
434
        mp_obj_print_helper(print, env, next, PRINT_REPR);
435
436
437
438
    }
    print(env, "])");
}

439
STATIC mp_obj_t dict_view_binary_op(int op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
440
441
442
    /* only supported for the 'keys' kind until sets and dicts are refactored */
    mp_obj_dict_view_t *o = lhs_in;
    if (o->kind != MP_DICT_VIEW_KEYS) return NULL;
Damien George's avatar
Damien George committed
443
    if (op != MP_BINARY_OP_IN) return NULL;
444
445
446
447
    return dict_binary_op(op, o->dict, rhs_in);
}


448
STATIC const mp_obj_type_t dict_view_type = {
449
    { &mp_type_type },
450
    .name = MP_QSTR_dict_view,
451
    .print = dict_view_print,
452
    .binary_op = dict_view_binary_op,
453
454
455
456
457
458
459
460
461
462
463
    .getiter = dict_view_getiter,
};

mp_obj_t mp_obj_new_dict_view(mp_obj_dict_t *dict, mp_dict_view_kind_t kind) {
    mp_obj_dict_view_t *o = m_new_obj(mp_obj_dict_view_t);
    o->base.type = &dict_view_type;
    o->dict = dict;
    o->kind = kind;
    return o;
}

464
STATIC mp_obj_t dict_view(mp_obj_t self_in, mp_dict_view_kind_t kind) {
465
    assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
466
467
468
469
    mp_obj_dict_t *self = self_in;
    return mp_obj_new_dict_view(self, kind);
}

470
STATIC mp_obj_t dict_items(mp_obj_t self_in) {
471
472
    return dict_view(self_in, MP_DICT_VIEW_ITEMS);
}
473
STATIC MP_DEFINE_CONST_FUN_OBJ_1(dict_items_obj, dict_items);
474

475
STATIC mp_obj_t dict_keys(mp_obj_t self_in) {
476
477
    return dict_view(self_in, MP_DICT_VIEW_KEYS);
}
478
STATIC MP_DEFINE_CONST_FUN_OBJ_1(dict_keys_obj, dict_keys);
479

480
STATIC mp_obj_t dict_values(mp_obj_t self_in) {
481
482
    return dict_view(self_in, MP_DICT_VIEW_VALUES);
}
483
STATIC MP_DEFINE_CONST_FUN_OBJ_1(dict_values_obj, dict_values);
484

John R. Lenton's avatar
John R. Lenton committed
485
/******************************************************************************/
486
/* dict constructors & public C API                                           */
John R. Lenton's avatar
John R. Lenton committed
487

488
489
490
491
492
493
494
495
496
497
498
499
STATIC const mp_map_elem_t dict_locals_dict_table[] = {
    { MP_OBJ_NEW_QSTR(MP_QSTR_clear), (mp_obj_t)&dict_clear_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_copy), (mp_obj_t)&dict_copy_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_fromkeys), (mp_obj_t)&dict_fromkeys_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_get), (mp_obj_t)&dict_get_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_items), (mp_obj_t)&dict_items_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_keys), (mp_obj_t)&dict_keys_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_pop), (mp_obj_t)&dict_pop_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_popitem), (mp_obj_t)&dict_popitem_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_setdefault), (mp_obj_t)&dict_setdefault_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_update), (mp_obj_t)&dict_update_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_values), (mp_obj_t)&dict_values_obj },
500
    { MP_OBJ_NEW_QSTR(MP_QSTR___getitem__), (mp_obj_t)&mp_op_getitem_obj },
Paul Sokolovsky's avatar
Paul Sokolovsky committed
501
    { MP_OBJ_NEW_QSTR(MP_QSTR___setitem__), (mp_obj_t)&mp_op_setitem_obj },
Paul Sokolovsky's avatar
Paul Sokolovsky committed
502
    { MP_OBJ_NEW_QSTR(MP_QSTR___delitem__), (mp_obj_t)&mp_op_delitem_obj },
503
504
};

505
506
STATIC MP_DEFINE_CONST_DICT(dict_locals_dict, dict_locals_dict_table);

507
const mp_obj_type_t mp_type_dict = {
508
    { &mp_type_type },
509
    .name = MP_QSTR_dict,
510
511
    .print = dict_print,
    .make_new = dict_make_new,
512
    .unary_op = dict_unary_op,
513
    .binary_op = dict_binary_op,
514
    .subscr = dict_subscr,
John R. Lenton's avatar
John R. Lenton committed
515
    .getiter = dict_getiter,
516
    .locals_dict = (mp_obj_t)&dict_locals_dict,
517
518
};

519
520
521
522
523
void mp_obj_dict_init(mp_obj_dict_t *dict, int n_args) {
    dict->base.type = &mp_type_dict;
    mp_map_init(&dict->map, n_args);
}

524
525
mp_obj_t mp_obj_new_dict(int n_args) {
    mp_obj_dict_t *o = m_new_obj(mp_obj_dict_t);
526
    mp_obj_dict_init(o, n_args);
527
528
    return o;
}
529
530

uint mp_obj_dict_len(mp_obj_t self_in) {
John R. Lenton's avatar
John R. Lenton committed
531
    return ((mp_obj_dict_t *)self_in)->map.used;
532
533
534
}

mp_obj_t mp_obj_dict_store(mp_obj_t self_in, mp_obj_t key, mp_obj_t value) {
535
    assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
536
    mp_obj_dict_t *self = self_in;
537
    mp_map_lookup(&self->map, key, MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = value;
538
539
    return self_in;
}
540

541
542
543
544
545
546
547
mp_obj_t mp_obj_dict_delete(mp_obj_t self_in, mp_obj_t key) {
    assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
    mp_obj_dict_t *self = self_in;
    dict_get_helper(&self->map, key, NULL, MP_MAP_LOOKUP_REMOVE_IF_FOUND);
    return self_in;
}

548
mp_map_t *mp_obj_dict_get_map(mp_obj_t self_in) {
549
    assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
550
551
552
    mp_obj_dict_t *self = self_in;
    return &self->map;
}