runtime.c 38.5 KB
Newer Older
Damien's avatar
Damien committed
1
2
3
4
#include <stdio.h>
#include <string.h>
#include <assert.h>

5
#include "nlr.h"
Damien's avatar
Damien committed
6
#include "misc.h"
7
#include "mpconfig.h"
8
#include "qstr.h"
9
#include "obj.h"
10
#include "objtuple.h"
11
#include "objmodule.h"
12
#include "parsenum.h"
13
#include "runtime0.h"
Damien's avatar
Damien committed
14
#include "runtime.h"
15
#include "emitglue.h"
16
#include "builtin.h"
17
#include "builtintables.h"
18
#include "bc.h"
19
#include "smallint.h"
20
#include "objgenerator.h"
21

22
#if 0 // print debugging info
23
#define DEBUG_PRINT (1)
24
#define DEBUG_printf DEBUG_printf
25
#define DEBUG_OP_printf(...) DEBUG_printf(__VA_ARGS__)
26
#else // don't print debugging info
27
28
#define DEBUG_printf(...) (void)0
#define DEBUG_OP_printf(...) (void)0
29
#endif
Damien's avatar
Damien committed
30

31
// locals and globals need to be pointers because they can be the same in outer module scope
32
33
34
STATIC mp_map_t *map_locals;
STATIC mp_map_t *map_globals;
STATIC mp_map_t map_builtins;
35

36
// a good optimising compiler will inline this if necessary
37
STATIC void mp_map_add_qstr(mp_map_t *map, qstr qstr, mp_obj_t value) {
38
39
40
    mp_map_lookup(map, MP_OBJ_NEW_QSTR(qstr), MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = value;
}

Damien George's avatar
Damien George committed
41
void mp_init(void) {
42
43
    mp_emit_glue_init();

44
    // locals = globals for outer module (see Objects/frameobject.c/PyFrame_New())
45
    map_locals = map_globals = mp_map_new(1);
46

47
    // init built-in hash table
48
    mp_map_init(&map_builtins, 3);
49

50
51
    // init global module stuff
    mp_module_init();
52

53
54
    // add some builtins that can't be done in ROM
    mp_map_add_qstr(map_globals, MP_QSTR___name__, MP_OBJ_NEW_QSTR(MP_QSTR___main__));
Damien George's avatar
Damien George committed
55

56
#if MICROPY_CPYTHON_COMPAT
57
    // Precreate sys module, so "import sys" didn't throw exceptions.
58
59
60
    mp_obj_t m_sys = mp_obj_new_module(MP_QSTR_sys);
    // Avoid warning of unused var
    (void)m_sys;
61
#endif
62
63
    // init sys.path
    // for efficiency, left to platform-specific startup code
Damien George's avatar
Damien George committed
64
65
    //mp_sys_path = mp_obj_new_list(0, NULL);
    //mp_store_attr(m_sys, MP_QSTR_path, mp_sys_path);
Damien's avatar
Damien committed
66
67
}

Damien George's avatar
Damien George committed
68
void mp_deinit(void) {
69
70
71
72
    mp_map_free(map_globals);
    mp_map_deinit(&map_builtins);
    mp_module_deinit();
    mp_emit_glue_deinit();
Damien's avatar
Damien committed
73
74
}

Damien George's avatar
Damien George committed
75
mp_obj_t mp_load_const_dec(qstr qstr) {
Damien's avatar
Damien committed
76
    DEBUG_OP_printf("load '%s'\n", qstr_str(qstr));
77
78
    uint len;
    const byte* data = qstr_data(qstr, &len);
79
    return mp_parse_num_decimal((const char*)data, len, true, false);
Damien's avatar
Damien committed
80
81
}

Damien George's avatar
Damien George committed
82
mp_obj_t mp_load_const_str(qstr qstr) {
Damien's avatar
Damien committed
83
    DEBUG_OP_printf("load '%s'\n", qstr_str(qstr));
84
    return MP_OBJ_NEW_QSTR(qstr);
Damien's avatar
Damien committed
85
86
}

Damien George's avatar
Damien George committed
87
mp_obj_t mp_load_const_bytes(qstr qstr) {
88
89
90
91
92
93
    DEBUG_OP_printf("load b'%s'\n", qstr_str(qstr));
    uint len;
    const byte *data = qstr_data(qstr, &len);
    return mp_obj_new_bytes(data, len);
}

Damien George's avatar
Damien George committed
94
mp_obj_t mp_load_name(qstr qstr) {
Damien's avatar
Damien committed
95
    // logic: search locals, globals, builtins
96
97
98
99
100
101
102
    DEBUG_OP_printf("load name %s\n", map_locals, qstr_str(qstr));
    // If we're at the outer scope (locals == globals), dispatch to load_global right away
    if (map_locals != map_globals) {
        mp_map_elem_t *elem = mp_map_lookup(map_locals, MP_OBJ_NEW_QSTR(qstr), MP_MAP_LOOKUP);
        if (elem != NULL) {
            return elem->value;
        }
Damien's avatar
Damien committed
103
    }
104
    return mp_load_global(qstr);
Damien's avatar
Damien committed
105
106
}

Damien George's avatar
Damien George committed
107
mp_obj_t mp_load_global(qstr qstr) {
108
109
    // logic: search globals, builtins
    DEBUG_OP_printf("load global %s\n", qstr_str(qstr));
110
    mp_map_elem_t *elem = mp_map_lookup(map_globals, MP_OBJ_NEW_QSTR(qstr), MP_MAP_LOOKUP);
111
    if (elem == NULL) {
112
        elem = mp_map_lookup(&map_builtins, MP_OBJ_NEW_QSTR(qstr), MP_MAP_LOOKUP);
113
        if (elem == NULL) {
114
115
116
            mp_obj_t o = mp_builtin_tables_lookup_object(qstr);
            if (o != MP_OBJ_NULL) {
                return o;
117
            }
118
            nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_NameError, "name '%s' is not defined", qstr_str(qstr)));
119
120
121
        }
    }
    return elem->value;
Damien's avatar
Damien committed
122
123
}

Damien George's avatar
Damien George committed
124
mp_obj_t mp_load_build_class(void) {
Damien's avatar
Damien committed
125
    DEBUG_OP_printf("load_build_class\n");
126
    // lookup __build_class__ in dynamic table of builtins first
127
    mp_map_elem_t *elem = mp_map_lookup(&map_builtins, MP_OBJ_NEW_QSTR(MP_QSTR___build_class__), MP_MAP_LOOKUP);
128
    if (elem != NULL) {
129
        // found user-defined __build_class__, return it
130
131
        return elem->value;
    } else {
132
        // no user-defined __build_class__, return builtin one
133
        return (mp_obj_t)&mp_builtin___build_class___obj;
Damien's avatar
Damien committed
134
135
136
    }
}

Damien George's avatar
Damien George committed
137
void mp_store_name(qstr qstr, mp_obj_t obj) {
138
    DEBUG_OP_printf("store name %s <- %p\n", qstr_str(qstr), obj);
139
    mp_map_lookup(map_locals, MP_OBJ_NEW_QSTR(qstr), MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = obj;
140
141
}

Damien George's avatar
Damien George committed
142
void mp_delete_name(qstr qstr) {
143
144
145
146
    DEBUG_OP_printf("delete name %s\n", qstr_str(qstr));
    mp_map_lookup(map_locals, MP_OBJ_NEW_QSTR(qstr), MP_MAP_LOOKUP_REMOVE_IF_FOUND);
}

Damien George's avatar
Damien George committed
147
void mp_store_global(qstr qstr, mp_obj_t obj) {
148
    DEBUG_OP_printf("store global %s <- %p\n", qstr_str(qstr), obj);
149
    mp_map_lookup(map_globals, MP_OBJ_NEW_QSTR(qstr), MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = obj;
Damien's avatar
Damien committed
150
151
}

Damien George's avatar
Damien George committed
152
mp_obj_t mp_unary_op(int op, mp_obj_t arg) {
Damien's avatar
Damien committed
153
    DEBUG_OP_printf("unary %d %p\n", op, arg);
154

155
156
    if (MP_OBJ_IS_SMALL_INT(arg)) {
        mp_small_int_t val = MP_OBJ_SMALL_INT_VALUE(arg);
Damien's avatar
Damien committed
157
        switch (op) {
Damien George's avatar
Damien George committed
158
            case MP_UNARY_OP_BOOL:
159
                return MP_BOOL(val != 0);
Damien George's avatar
Damien George committed
160
            case MP_UNARY_OP_POSITIVE:
161
                return arg;
Damien George's avatar
Damien George committed
162
            case MP_UNARY_OP_NEGATIVE:
163
164
165
166
167
168
                // check for overflow
                if (val == MP_SMALL_INT_MIN) {
                    return mp_obj_new_int(-val);
                } else {
                    return MP_OBJ_NEW_SMALL_INT(-val);
                }
Damien George's avatar
Damien George committed
169
            case MP_UNARY_OP_INVERT:
170
171
172
173
                return MP_OBJ_NEW_SMALL_INT(~val);
            default:
                assert(0);
                return arg;
174
        }
175
176
177
178
    } else {
        mp_obj_type_t *type = mp_obj_get_type(arg);
        if (type->unary_op != NULL) {
            mp_obj_t result = type->unary_op(op, arg);
179
180
181
            if (result != NULL) {
                return result;
            }
Damien's avatar
Damien committed
182
        }
183
        // TODO specify in error message what the operator is
Damien George's avatar
Damien George committed
184
        nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "bad operand type for unary operator: '%s'", mp_obj_get_type_str(arg)));
Damien's avatar
Damien committed
185
    }
Damien's avatar
Damien committed
186
187
}

Damien George's avatar
Damien George committed
188
mp_obj_t mp_binary_op(int op, mp_obj_t lhs, mp_obj_t rhs) {
Damien's avatar
Damien committed
189
    DEBUG_OP_printf("binary %d %p %p\n", op, lhs, rhs);
190
191
192
193
194
195
196
197
198
199

    // TODO correctly distinguish inplace operators for mutable objects
    // lookup logic that CPython uses for +=:
    //   check for implemented +=
    //   then check for implemented +
    //   then check for implemented seq.inplace_concat
    //   then check for implemented seq.concat
    //   then fail
    // note that list does not implement + or +=, so that inplace_concat is reached first for +=

200
    // deal with is
Damien George's avatar
Damien George committed
201
    if (op == MP_BINARY_OP_IS) {
202
203
204
        return MP_BOOL(lhs == rhs);
    }

205
    // deal with == and != for all types
Damien George's avatar
Damien George committed
206
    if (op == MP_BINARY_OP_EQUAL || op == MP_BINARY_OP_NOT_EQUAL) {
207
        if (mp_obj_equal(lhs, rhs)) {
Damien George's avatar
Damien George committed
208
            if (op == MP_BINARY_OP_EQUAL) {
209
210
211
212
213
                return mp_const_true;
            } else {
                return mp_const_false;
            }
        } else {
Damien George's avatar
Damien George committed
214
            if (op == MP_BINARY_OP_EQUAL) {
215
216
217
218
219
220
221
222
                return mp_const_false;
            } else {
                return mp_const_true;
            }
        }
    }

    // deal with exception_match for all types
Damien George's avatar
Damien George committed
223
    if (op == MP_BINARY_OP_EXCEPTION_MATCH) {
224
225
226
227
228
229
        // rhs must be issubclass(rhs, BaseException)
        if (mp_obj_is_exception_type(rhs)) {
            // if lhs is an instance of an exception, then extract and use its type
            if (mp_obj_is_exception_instance(lhs)) {
                lhs = mp_obj_get_type(lhs);
            }
230
            if (mp_obj_is_subclass_fast(lhs, rhs)) {
231
232
233
234
235
                return mp_const_true;
            } else {
                return mp_const_false;
            }
        }
236
237
        assert(0);
        return mp_const_false;
238
239
    }

240
    if (MP_OBJ_IS_SMALL_INT(lhs)) {
241
        mp_small_int_t lhs_val = MP_OBJ_SMALL_INT_VALUE(lhs);
242
243
        if (MP_OBJ_IS_SMALL_INT(rhs)) {
            mp_small_int_t rhs_val = MP_OBJ_SMALL_INT_VALUE(rhs);
244
245
246
247
248
249
250
251
252
            // This is a binary operation: lhs_val op rhs_val
            // We need to be careful to handle overflow; see CERT INT32-C
            // Operations that can overflow:
            //      +       result always fits in machine_int_t, then handled by SMALL_INT check
            //      -       result always fits in machine_int_t, then handled by SMALL_INT check
            //      *       checked explicitly
            //      /       if lhs=MIN and rhs=-1; result always fits in machine_int_t, then handled by SMALL_INT check
            //      %       if lhs=MIN and rhs=-1; result always fits in machine_int_t, then handled by SMALL_INT check
            //      <<      checked explicitly
253
            switch (op) {
Damien George's avatar
Damien George committed
254
255
256
257
258
259
260
261
                case MP_BINARY_OP_OR:
                case MP_BINARY_OP_INPLACE_OR: lhs_val |= rhs_val; break;
                case MP_BINARY_OP_XOR:
                case MP_BINARY_OP_INPLACE_XOR: lhs_val ^= rhs_val; break;
                case MP_BINARY_OP_AND:
                case MP_BINARY_OP_INPLACE_AND: lhs_val &= rhs_val; break;
                case MP_BINARY_OP_LSHIFT:
                case MP_BINARY_OP_INPLACE_LSHIFT: {
262
263
264
265
266
267
268
269
270
271
272
273
274
                    if (rhs_val < 0) {
                        // negative shift not allowed
                        nlr_jump(mp_obj_new_exception_msg(&mp_type_ValueError, "negative shift count"));
                    } else if (rhs_val >= BITS_PER_WORD || lhs_val > (MP_SMALL_INT_MAX >> rhs_val) || lhs_val < (MP_SMALL_INT_MIN >> rhs_val)) {
                        // left-shift will overflow, so use higher precision integer
                        lhs = mp_obj_new_int_from_ll(lhs_val);
                        goto generic_binary_op;
                    } else {
                        // use standard precision
                        lhs_val <<= rhs_val;
                    }
                    break;
                }
Damien George's avatar
Damien George committed
275
276
                case MP_BINARY_OP_RSHIFT:
                case MP_BINARY_OP_INPLACE_RSHIFT:
277
278
279
280
281
282
283
284
                    if (rhs_val < 0) {
                        // negative shift not allowed
                        nlr_jump(mp_obj_new_exception_msg(&mp_type_ValueError, "negative shift count"));
                    } else {
                        // standard precision is enough for right-shift
                        lhs_val >>= rhs_val;
                    }
                    break;
Damien George's avatar
Damien George committed
285
286
287
288
289
290
                case MP_BINARY_OP_ADD:
                case MP_BINARY_OP_INPLACE_ADD: lhs_val += rhs_val; break;
                case MP_BINARY_OP_SUBTRACT:
                case MP_BINARY_OP_INPLACE_SUBTRACT: lhs_val -= rhs_val; break;
                case MP_BINARY_OP_MULTIPLY:
                case MP_BINARY_OP_INPLACE_MULTIPLY: {
291
292
293

                    // If long long type exists and is larger than machine_int_t, then
                    // we can use the following code to perform overflow-checked multiplication.
294
                    // Otherwise (eg in x64 case) we must use mp_small_int_mul_overflow.
295
296
297
298
299
300
301
302
303
304
305
306
                    #if 0
                    // compute result using long long precision
                    long long res = (long long)lhs_val * (long long)rhs_val;
                    if (res > MP_SMALL_INT_MAX || res < MP_SMALL_INT_MIN) {
                        // result overflowed SMALL_INT, so return higher precision integer
                        return mp_obj_new_int_from_ll(res);
                    } else {
                        // use standard precision
                        lhs_val = (mp_small_int_t)res;
                    }
                    #endif

307
308
309
310
311
312
313
314
                    if (mp_small_int_mul_overflow(lhs_val, rhs_val)) {
                        // use higher precision
                        lhs = mp_obj_new_int_from_ll(lhs_val);
                        goto generic_binary_op;
                    } else {
                        // use standard precision
                        return MP_OBJ_NEW_SMALL_INT(lhs_val * rhs_val);
                    }
315
316
                    break;
                }
Damien George's avatar
Damien George committed
317
318
                case MP_BINARY_OP_FLOOR_DIVIDE:
                case MP_BINARY_OP_INPLACE_FLOOR_DIVIDE:
319
320
321
                    if (rhs_val == 0) {
                        goto zero_division;
                    }
322
                    lhs_val = mp_small_int_floor_divide(lhs_val, rhs_val);
323
                    break;
324

325
                #if MICROPY_ENABLE_FLOAT
Damien George's avatar
Damien George committed
326
                case MP_BINARY_OP_TRUE_DIVIDE:
327
328
                case MP_BINARY_OP_INPLACE_TRUE_DIVIDE:
                    if (rhs_val == 0) {
329
                        goto zero_division;
330
331
                    }
                    return mp_obj_new_float((mp_float_t)lhs_val / (mp_float_t)rhs_val);
332
                #endif
333

Damien George's avatar
Damien George committed
334
                case MP_BINARY_OP_MODULO:
335
336
                case MP_BINARY_OP_INPLACE_MODULO: {
                    lhs_val = mp_small_int_modulo(lhs_val, rhs_val);
337
338
                    break;
                }
339

Damien George's avatar
Damien George committed
340
341
                case MP_BINARY_OP_POWER:
                case MP_BINARY_OP_INPLACE_POWER:
342
343
344
345
346
347
348
349
350
351
352
                    if (rhs_val < 0) {
                        #if MICROPY_ENABLE_FLOAT
                        lhs = mp_obj_new_float(lhs_val);
                        goto generic_binary_op;
                        #else
                        nlr_jump(mp_obj_new_exception_msg(&mp_type_ValueError, "negative power with no float support"));
                        #endif
                    } else {
                        machine_int_t ans = 1;
                        while (rhs_val > 0) {
                            if (rhs_val & 1) {
353
                                if (mp_small_int_mul_overflow(ans, lhs_val)) {
354
355
                                    goto power_overflow;
                                }
356
                                ans *= lhs_val;
357
358
359
                            }
                            if (rhs_val == 1) {
                                break;
360
361
                            }
                            rhs_val /= 2;
362
                            if (mp_small_int_mul_overflow(lhs_val, lhs_val)) {
363
364
                                goto power_overflow;
                            }
365
                            lhs_val *= lhs_val;
366
                        }
367
                        lhs_val = ans;
368
                    }
369
                    break;
370
371
372
373
374
375

                power_overflow:
                    // use higher precision
                    lhs = mp_obj_new_int_from_ll(MP_OBJ_SMALL_INT_VALUE(lhs));
                    goto generic_binary_op;

Damien George's avatar
Damien George committed
376
377
378
379
                case MP_BINARY_OP_LESS: return MP_BOOL(lhs_val < rhs_val); break;
                case MP_BINARY_OP_MORE: return MP_BOOL(lhs_val > rhs_val); break;
                case MP_BINARY_OP_LESS_EQUAL: return MP_BOOL(lhs_val <= rhs_val); break;
                case MP_BINARY_OP_MORE_EQUAL: return MP_BOOL(lhs_val >= rhs_val); break;
380

381
382
                default: assert(0);
            }
383
384
            // TODO: We just should make mp_obj_new_int() inline and use that
            if (MP_OBJ_FITS_SMALL_INT(lhs_val)) {
385
                return MP_OBJ_NEW_SMALL_INT(lhs_val);
386
387
            } else {
                return mp_obj_new_int(lhs_val);
388
            }
389
#if MICROPY_ENABLE_FLOAT
390
        } else if (MP_OBJ_IS_TYPE(rhs, &mp_type_float)) {
391
            return mp_obj_float_binary_op(op, lhs_val, rhs);
392
        } else if (MP_OBJ_IS_TYPE(rhs, &mp_type_complex)) {
393
            return mp_obj_complex_binary_op(op, lhs_val, 0, rhs);
394
#endif
395
        }
396
    }
397

398
    /* deal with `in`
399
400
     *
     * NOTE `a in b` is `b.__contains__(a)`, hence why the generic dispatch
Damien George's avatar
Damien George committed
401
     * needs to go below with swapped arguments
402
     */
Damien George's avatar
Damien George committed
403
    if (op == MP_BINARY_OP_IN) {
404
405
406
        mp_obj_type_t *type = mp_obj_get_type(rhs);
        if (type->binary_op != NULL) {
            mp_obj_t res = type->binary_op(op, rhs, lhs);
Damien George's avatar
Damien George committed
407
            if (res != MP_OBJ_NULL) {
408
                return res;
John R. Lenton's avatar
John R. Lenton committed
409
            }
410
411
412
413
        }
        if (type->getiter != NULL) {
            /* second attempt, walk the iterator */
            mp_obj_t next = NULL;
Damien George's avatar
Damien George committed
414
415
            mp_obj_t iter = mp_getiter(rhs);
            while ((next = mp_iternext(iter)) != MP_OBJ_NULL) {
416
                if (mp_obj_equal(next, lhs)) {
417
                    return mp_const_true;
John R. Lenton's avatar
John R. Lenton committed
418
                }
419
            }
420
            return mp_const_false;
421
422
423
        }

        nlr_jump(mp_obj_new_exception_msg_varg(
424
                     &mp_type_TypeError, "'%s' object is not iterable",
425
426
427
428
                     mp_obj_get_type_str(rhs)));
        return mp_const_none;
    }

429
    // generic binary_op supplied by type
430
431
432
    mp_obj_type_t *type;
generic_binary_op:
    type = mp_obj_get_type(lhs);
433
434
435
436
    if (type->binary_op != NULL) {
        mp_obj_t result = type->binary_op(op, lhs, rhs);
        if (result != MP_OBJ_NULL) {
            return result;
Damien's avatar
Damien committed
437
438
        }
    }
439

440
441
    // TODO implement dispatch for reverse binary ops

John R. Lenton's avatar
John R. Lenton committed
442
    // TODO specify in error message what the operator is
443
    nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_TypeError,
John R. Lenton's avatar
John R. Lenton committed
444
445
        "unsupported operand types for binary operator: '%s', '%s'",
        mp_obj_get_type_str(lhs), mp_obj_get_type_str(rhs)));
446
    return mp_const_none;
447
448
449

zero_division:
    nlr_jump(mp_obj_new_exception_msg(&mp_type_ZeroDivisionError, "division by zero"));
Damien's avatar
Damien committed
450
451
}

Damien George's avatar
Damien George committed
452
453
mp_obj_t mp_call_function_0(mp_obj_t fun) {
    return mp_call_function_n_kw(fun, 0, 0, NULL);
454
455
}

Damien George's avatar
Damien George committed
456
457
mp_obj_t mp_call_function_1(mp_obj_t fun, mp_obj_t arg) {
    return mp_call_function_n_kw(fun, 1, 0, &arg);
458
459
}

Damien George's avatar
Damien George committed
460
mp_obj_t mp_call_function_2(mp_obj_t fun, mp_obj_t arg1, mp_obj_t arg2) {
461
    mp_obj_t args[2];
462
463
    args[0] = arg1;
    args[1] = arg2;
Damien George's avatar
Damien George committed
464
    return mp_call_function_n_kw(fun, 2, 0, args);
465
466
}

467
468
// wrapper that accepts n_args and n_kw in one argument
// native emitter can only pass at most 3 arguments to a function
Damien George's avatar
Damien George committed
469
470
mp_obj_t mp_call_function_n_kw_for_native(mp_obj_t fun_in, uint n_args_kw, const mp_obj_t *args) {
    return mp_call_function_n_kw(fun_in, n_args_kw & 0xff, (n_args_kw >> 8) & 0xff, args);
471
472
}

473
// args contains, eg: arg0  arg1  key0  value0  key1  value1
Damien George's avatar
Damien George committed
474
mp_obj_t mp_call_function_n_kw(mp_obj_t fun_in, uint n_args, uint n_kw, const mp_obj_t *args) {
475
476
    // TODO improve this: fun object can specify its type and we parse here the arguments,
    // passing to the function arrays of fixed and keyword arguments
477

478
479
    DEBUG_OP_printf("calling function %p(n_args=%d, n_kw=%d, args=%p)\n", fun_in, n_args, n_kw, args);

480
481
482
483
484
485
    // get the type
    mp_obj_type_t *type = mp_obj_get_type(fun_in);

    // do the call
    if (type->call != NULL) {
        return type->call(fun_in, n_args, n_kw, args);
486
    } else {
Damien George's avatar
Damien George committed
487
        nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "'%s' object is not callable", mp_obj_get_type_str(fun_in)));
488
    }
489
490
}

491
492
// args contains: fun  self/NULL  arg(0)  ...  arg(n_args-2)  arg(n_args-1)  kw_key(0)  kw_val(0)  ... kw_key(n_kw-1)  kw_val(n_kw-1)
// if n_args==0 and n_kw==0 then there are only fun and self/NULL
Damien George's avatar
Damien George committed
493
mp_obj_t mp_call_method_n_kw(uint n_args, uint n_kw, const mp_obj_t *args) {
494
495
    DEBUG_OP_printf("call method (fun=%p, self=%p, n_args=%u, n_kw=%u, args=%p)\n", args[0], args[1], n_args, n_kw, args);
    int adjust = (args[1] == NULL) ? 0 : 1;
Damien George's avatar
Damien George committed
496
    return mp_call_function_n_kw(args[0], n_args + adjust, n_kw, args + 2 - adjust);
497
498
}

499
mp_obj_t mp_call_method_n_kw_var(bool have_self, uint n_args_n_kw, const mp_obj_t *args) {
500
501
502
503
504
505
506
    mp_obj_t fun = *args++;
    mp_obj_t self = MP_OBJ_NULL;
    if (have_self) {
        self = *args++; // may be MP_OBJ_NULL
    }
    uint n_args = n_args_n_kw & 0xff;
    uint n_kw = (n_args_n_kw >> 8) & 0xff;
507
508
    mp_obj_t pos_seq = args[n_args + 2 * n_kw]; // map be MP_OBJ_NULL
    mp_obj_t kw_dict = args[n_args + 2 * n_kw + 1]; // map be MP_OBJ_NULL
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642

    DEBUG_OP_printf("call method var (fun=%p, self=%p, n_args=%u, n_kw=%u, args=%p, seq=%p, dict=%p)\n", fun, self, n_args, n_kw, args, pos_seq, kw_dict);

    // We need to create the following array of objects:
    //     args[0 .. n_args]  unpacked(pos_seq)  args[n_args .. n_args + 2 * n_kw]  unpacked(kw_dict)
    // TODO: optimize one day to avoid constructing new arg array? Will be hard.

    // The new args array
    mp_obj_t *args2;
    uint args2_alloc;
    uint args2_len = 0;

    // Try to get a hint for the size of the kw_dict
    uint kw_dict_len = 0;
    if (kw_dict != MP_OBJ_NULL && MP_OBJ_IS_TYPE(kw_dict, &mp_type_dict)) {
        kw_dict_len = mp_obj_dict_len(kw_dict);
    }

    // Extract the pos_seq sequence to the new args array.
    // Note that it can be arbitrary iterator.
    if (pos_seq == MP_OBJ_NULL) {
        // no sequence

        // allocate memory for the new array of args
        args2_alloc = 1 + n_args + 2 * (n_kw + kw_dict_len);
        args2 = m_new(mp_obj_t, args2_alloc);

        // copy the self
        if (self != MP_OBJ_NULL) {
            args2[args2_len++] = self;
        }

        // copy the fixed pos args
        m_seq_copy(args2 + args2_len, args, n_args, mp_obj_t);
        args2_len += n_args;

    } else if (MP_OBJ_IS_TYPE(pos_seq, &mp_type_tuple) || MP_OBJ_IS_TYPE(pos_seq, &mp_type_list)) {
        // optimise the case of a tuple and list

        // get the items
        uint len;
        mp_obj_t *items;
        mp_obj_get_array(pos_seq, &len, &items);

        // allocate memory for the new array of args
        args2_alloc = 1 + n_args + len + 2 * (n_kw + kw_dict_len);
        args2 = m_new(mp_obj_t, args2_alloc);

        // copy the self
        if (self != MP_OBJ_NULL) {
            args2[args2_len++] = self;
        }

        // copy the fixed and variable position args
        m_seq_cat(args2 + args2_len, args, n_args, items, len, mp_obj_t);
        args2_len += n_args + len;

    } else {
        // generic iterator

        // allocate memory for the new array of args
        args2_alloc = 1 + n_args + 2 * (n_kw + kw_dict_len) + 3;
        args2 = m_new(mp_obj_t, args2_alloc);

        // copy the self
        if (self != MP_OBJ_NULL) {
            args2[args2_len++] = self;
        }

        // copy the fixed position args
        m_seq_copy(args2 + args2_len, args, n_args, mp_obj_t);

        // extract the variable position args from the iterator
        mp_obj_t iterable = mp_getiter(pos_seq);
        mp_obj_t item;
        while ((item = mp_iternext(iterable)) != MP_OBJ_NULL) {
            if (args2_len >= args2_alloc) {
                args2 = m_renew(mp_obj_t, args2, args2_alloc, args2_alloc * 2);
                args2_alloc *= 2;
            }
            args2[args2_len++] = item;
        }
    }

    // The size of the args2 array now is the number of positional args.
    uint pos_args_len = args2_len;

    // Copy the fixed kw args.
    m_seq_copy(args2 + args2_len, args + n_args, 2 * n_kw, mp_obj_t);
    args2_len += 2 * n_kw;

    // Extract (key,value) pairs from kw_dict dictionary and append to args2.
    // Note that it can be arbitrary iterator.
    if (kw_dict == MP_OBJ_NULL) {
        // pass
    } else if (MP_OBJ_IS_TYPE(kw_dict, &mp_type_dict)) {
        // dictionary
        mp_map_t *map = mp_obj_dict_get_map(kw_dict);
        assert(args2_len + 2 * map->used <= args2_alloc); // should have enough, since kw_dict_len is in this case hinted correctly above
        for (uint i = 0; i < map->alloc; i++) {
            if (map->table[i].key != MP_OBJ_NULL) {
                args2[args2_len++] = map->table[i].key;
                args2[args2_len++] = map->table[i].value;
            }
        }
    } else {
        // generic mapping
        // TODO is calling 'items' on the mapping the correct thing to do here?
        mp_obj_t dest[2];
        mp_load_method(kw_dict, MP_QSTR_items, dest);
        mp_obj_t iterable = mp_getiter(mp_call_method_n_kw(0, 0, dest));
        mp_obj_t item;
        while ((item = mp_iternext(iterable)) != MP_OBJ_NULL) {
            if (args2_len + 1 >= args2_alloc) {
                uint new_alloc = args2_alloc * 2;
                if (new_alloc < 4) {
                    new_alloc = 4;
                }
                args2 = m_renew(mp_obj_t, args2, args2_alloc, new_alloc);
                args2_alloc = new_alloc;
            }
            mp_obj_t *items;
            mp_obj_get_array_fixed_n(item, 2, &items);
            args2[args2_len++] = items[0];
            args2[args2_len++] = items[1];
        }
    }

    mp_obj_t res = mp_call_function_n_kw(fun, pos_args_len, (args2_len - pos_args_len) / 2, args2);
    m_del(mp_obj_t, args2, args2_alloc);

    return res;
}

643
// unpacked items are stored in reverse order into the array pointed to by items
Damien George's avatar
Damien George committed
644
void mp_unpack_sequence(mp_obj_t seq_in, uint num, mp_obj_t *items) {
645
    uint seq_len;
646
    if (MP_OBJ_IS_TYPE(seq_in, &mp_type_tuple) || MP_OBJ_IS_TYPE(seq_in, &mp_type_list)) {
647
        mp_obj_t *seq_items;
648
        if (MP_OBJ_IS_TYPE(seq_in, &mp_type_tuple)) {
649
650
651
            mp_obj_tuple_get(seq_in, &seq_len, &seq_items);
        } else {
            mp_obj_list_get(seq_in, &seq_len, &seq_items);
652
        }
653
        if (seq_len < num) {
654
            goto too_short;
655
        } else if (seq_len > num) {
656
            goto too_long;
657
        }
658
659
660
        for (uint i = 0; i < num; i++) {
            items[i] = seq_items[num - 1 - i];
        }
661
    } else {
Damien George's avatar
Damien George committed
662
        mp_obj_t iterable = mp_getiter(seq_in);
663
664

        for (seq_len = 0; seq_len < num; seq_len++) {
Damien George's avatar
Damien George committed
665
            mp_obj_t el = mp_iternext(iterable);
666
            if (el == MP_OBJ_NULL) {
667
668
669
670
                goto too_short;
            }
            items[num - 1 - seq_len] = el;
        }
Damien George's avatar
Damien George committed
671
        if (mp_iternext(iterable) != MP_OBJ_NULL) {
672
673
            goto too_long;
        }
674
    }
675
676
677
    return;

too_short:
678
    nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "need more than %d values to unpack", seq_len));
679
too_long:
680
    nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "too many values to unpack (expected %d)", num));
681
682
}

Damien George's avatar
Damien George committed
683
mp_obj_t mp_load_attr(mp_obj_t base, qstr attr) {
684
685
686
    DEBUG_OP_printf("load attr %p.%s\n", base, qstr_str(attr));
    // use load_method
    mp_obj_t dest[2];
Damien George's avatar
Damien George committed
687
    mp_load_method(base, attr, dest);
688
    if (dest[1] == MP_OBJ_NULL) {
689
        // load_method returned just a normal attribute
690
        return dest[0];
691
692
693
    } else {
        // load_method returned a method, so build a bound method object
        return mp_obj_new_bound_meth(dest[0], dest[1]);
Damien's avatar
Damien committed
694
695
696
    }
}

697
698
699
// no attribute found, returns:     dest[0] == MP_OBJ_NULL, dest[1] == MP_OBJ_NULL
// normal attribute found, returns: dest[0] == <attribute>, dest[1] == MP_OBJ_NULL
// method attribute found, returns: dest[0] == <method>,    dest[1] == <self>
Damien George's avatar
Damien George committed
700
void mp_load_method_maybe(mp_obj_t base, qstr attr, mp_obj_t *dest) {
701
702
703
704
705
706
707
    // clear output to indicate no attribute/method found yet
    dest[0] = MP_OBJ_NULL;
    dest[1] = MP_OBJ_NULL;

    // get the type
    mp_obj_type_t *type = mp_obj_get_type(base);

Damien George's avatar
Damien George committed
708
709
    // look for built-in names
    if (0) {
710
#if MICROPY_CPYTHON_COMPAT
Damien George's avatar
Damien George committed
711
712
713
    } else if (attr == MP_QSTR___class__) {
        // a.__class__ is equivalent to type(a)
        dest[0] = type;
714
#endif
Damien George's avatar
Damien George committed
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746

    } else if (attr == MP_QSTR___next__ && type->iternext != NULL) {
        dest[0] = (mp_obj_t)&mp_builtin_next_obj;
        dest[1] = base;

    } else if (type->load_attr != NULL) {
        // this type can do its own load, so call it
        type->load_attr(base, attr, dest);

    } else if (type->locals_dict != NULL) {
        // generic method lookup
        // this is a lookup in the object (ie not class or type)
        assert(MP_OBJ_IS_TYPE(type->locals_dict, &mp_type_dict)); // Micro Python restriction, for now
        mp_map_t *locals_map = mp_obj_dict_get_map(type->locals_dict);
        mp_map_elem_t *elem = mp_map_lookup(locals_map, MP_OBJ_NEW_QSTR(attr), MP_MAP_LOOKUP);
        if (elem != NULL) {
            // check if the methods are functions, static or class methods
            // see http://docs.python.org/3.3/howto/descriptor.html
            if (MP_OBJ_IS_TYPE(elem->value, &mp_type_staticmethod)) {
                // return just the function
                dest[0] = ((mp_obj_static_class_method_t*)elem->value)->fun;
            } else if (MP_OBJ_IS_TYPE(elem->value, &mp_type_classmethod)) {
                // return a bound method, with self being the type of this object
                dest[0] = ((mp_obj_static_class_method_t*)elem->value)->fun;
                dest[1] = mp_obj_get_type(base);
            } else if (mp_obj_is_callable(elem->value)) {
                // return a bound method, with self being this object
                dest[0] = elem->value;
                dest[1] = base;
            } else {
                // class member is a value, so just return that value
                dest[0] = elem->value;
Damien's avatar
Damien committed
747
748
            }
        }
749
    }
750
751
}

Damien George's avatar
Damien George committed
752
void mp_load_method(mp_obj_t base, qstr attr, mp_obj_t *dest) {
753
754
    DEBUG_OP_printf("load method %p.%s\n", base, qstr_str(attr));

Damien George's avatar
Damien George committed
755
    mp_load_method_maybe(base, attr, dest);
756

757
    if (dest[0] == MP_OBJ_NULL) {
758
759
        // no attribute/method called attr
        // following CPython, we give a more detailed error message for type objects
760
        if (MP_OBJ_IS_TYPE(base, &mp_type_type)) {
761
762
            nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_AttributeError,
                "type object '%s' has no attribute '%s'", qstr_str(((mp_obj_type_t*)base)->name), qstr_str(attr)));
763
        } else {
764
            nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_AttributeError, "'%s' object has no attribute '%s'", mp_obj_get_type_str(base), qstr_str(attr)));
765
766
        }
    }
767
768
}

Damien George's avatar
Damien George committed
769
void mp_store_attr(mp_obj_t base, qstr attr, mp_obj_t value) {
Damien's avatar
Damien committed
770
    DEBUG_OP_printf("store attr %p.%s <- %p\n", base, qstr_str(attr), value);
771
772
773
774
775
    mp_obj_type_t *type = mp_obj_get_type(base);
    if (type->store_attr != NULL) {
        if (type->store_attr(base, attr, value)) {
            return;
        }
776
    }
777
    nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_AttributeError, "'%s' object has no attribute '%s'", mp_obj_get_type_str(base), qstr_str(attr)));
778
779
}

Damien George's avatar
Damien George committed
780
void mp_store_subscr(mp_obj_t base, mp_obj_t index, mp_obj_t value) {
Damien's avatar
Damien committed
781
    DEBUG_OP_printf("store subscr %p[%p] <- %p\n", base, index, value);
782
    if (MP_OBJ_IS_TYPE(base, &mp_type_list)) {
783
        // list store
784
        mp_obj_list_store(base, index, value);
785
    } else if (MP_OBJ_IS_TYPE(base, &mp_type_dict)) {
786
787
        // dict store
        mp_obj_dict_store(base, index, value);
Damien's avatar
Damien committed
788
    } else {
789
790
791
792
793
794
795
796
        mp_obj_type_t *type = mp_obj_get_type(base);
        if (type->store_item != NULL) {
            bool r = type->store_item(base, index, value);
            if (r) {
                return;
            }
            // TODO: call base classes here?
        }
797
        nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "'%s' object does not support item assignment", mp_obj_get_type_str(base)));
Damien's avatar
Damien committed
798
799
800
    }
}

Damien George's avatar
Damien George committed
801
mp_obj_t mp_getiter(mp_obj_t o_in) {
802
803
804
    mp_obj_type_t *type = mp_obj_get_type(o_in);
    if (type->getiter != NULL) {
        return type->getiter(o_in);
805
    } else {
806
        // check for __iter__ method
807
        mp_obj_t dest[2];
Damien George's avatar
Damien George committed
808
        mp_load_method_maybe(o_in, MP_QSTR___iter__, dest);
809
        if (dest[0] != MP_OBJ_NULL) {
810
            // __iter__ exists, call it and return its result
Damien George's avatar
Damien George committed
811
            return mp_call_method_n_kw(0, 0, dest);
812
        } else {
Damien George's avatar
Damien George committed
813
            mp_load_method_maybe(o_in, MP_QSTR___getitem__, dest);
814
815
816
817
818
819
820
            if (dest[0] != MP_OBJ_NULL) {
                // __getitem__ exists, create an iterator
                return mp_obj_new_getitem_iter(dest);
            } else {
                // object not iterable
                nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "'%s' object is not iterable", mp_obj_get_type_str(o_in)));
            }
821
        }
822
823
    }
}
824

825
826
// may return MP_OBJ_NULL as an optimisation instead of raise StopIteration()
// may also raise StopIteration()
Damien George's avatar
Damien George committed
827
mp_obj_t mp_iternext_allow_raise(mp_obj_t o_in) {
828
829
830
    mp_obj_type_t *type = mp_obj_get_type(o_in);
    if (type->iternext != NULL) {
        return type->iternext(o_in);
831
    } else {
832
833
        // check for __next__ method
        mp_obj_t dest[2];
Damien George's avatar
Damien George committed
834
        mp_load_method_maybe(o_in, MP_QSTR___next__, dest);
835
836
        if (dest[0] != MP_OBJ_NULL) {
            // __next__ exists, call it and return its result
Damien George's avatar
Damien George committed
837
            return mp_call_method_n_kw(0, 0, dest);
838
839
840
        } else {
            nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "'%s' object is not an iterator", mp_obj_get_type_str(o_in)));
        }
841
842
843
    }
}

844
845
// will always return MP_OBJ_NULL instead of raising StopIteration() (or any subclass thereof)
// may raise other exceptions
Damien George's avatar
Damien George committed
846
mp_obj_t mp_iternext(mp_obj_t o_in) {
847
848
849
850
851
852
    mp_obj_type_t *type = mp_obj_get_type(o_in);
    if (type->iternext != NULL) {
        return type->iternext(o_in);
    } else {
        // check for __next__ method
        mp_obj_t dest[2];
Damien George's avatar
Damien George committed
853
        mp_load_method_maybe(o_in, MP_QSTR___next__, dest);
854
855
856
857
        if (dest[0] != MP_OBJ_NULL) {
            // __next__ exists, call it and return its result
            nlr_buf_t nlr;
            if (nlr_push(&nlr) == 0) {
Damien George's avatar
Damien George committed
858
                mp_obj_t ret = mp_call_method_n_kw(0, 0, dest);
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
                nlr_pop();
                return ret;
            } else {
                if (mp_obj_is_subclass_fast(mp_obj_get_type(nlr.ret_val), &mp_type_StopIteration)) {
                    return MP_OBJ_NULL;
                } else {
                    nlr_jump(nlr.ret_val);
                }
            }
        } else {
            nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "'%s' object is not an iterator", mp_obj_get_type_str(o_in)));
        }
    }
}

874
875
// TODO: Unclear what to do with StopIterarion exception here.
mp_vm_return_kind_t mp_resume(mp_obj_t self_in, mp_obj_t send_value, mp_obj_t throw_value, mp_obj_t *ret_val) {
876
    assert((send_value != MP_OBJ_NULL) ^ (throw_value != MP_OBJ_NULL));
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
    mp_obj_type_t *type = mp_obj_get_type(self_in);

    if (type == &mp_type_gen_instance) {
        return mp_obj_gen_resume(self_in, send_value, throw_value, ret_val);
    }

    if (type->iternext != NULL && send_value == mp_const_none) {
        mp_obj_t ret = type->iternext(self_in);
        if (ret != MP_OBJ_NULL) {
            *ret_val = ret;
            return MP_VM_RETURN_YIELD;
        } else {
            // Emulate raise StopIteration()
            // Special case, handled in vm.c
            *ret_val = MP_OBJ_NULL;
            return MP_VM_RETURN_NORMAL;
        }
    }

    mp_obj_t dest[3]; // Reserve slot for send() arg

    if (send_value == mp_const_none) {
        mp_load_method_maybe(self_in, MP_QSTR___next__, dest);
        if (dest[0] != MP_OBJ_NULL) {
            *ret_val = mp_call_method_n_kw(0, 0, dest);
            return MP_VM_RETURN_YIELD;
        }
    }

    if (send_value != MP_OBJ_NULL) {
        mp_load_method(self_in, MP_QSTR_send, dest);
        dest[2] = send_value;
        *ret_val = mp_call_method_n_kw(1, 0, dest);
        return MP_VM_RETURN_YIELD;
    }

    if (throw_value != MP_OBJ_NULL) {
        if (mp_obj_is_subclass_fast(mp_obj_get_type(throw_value), &mp_type_GeneratorExit)) {
            mp_load_method_maybe(self_in, MP_QSTR_close, dest);
            if (dest[0] != MP_OBJ_NULL) {
                *ret_val = mp_call_method_n_kw(0, 0, dest);
                // We assume one can't "yield" from close()
                return MP_VM_RETURN_NORMAL;
            }
        }
922
923
924
925
926
927
928
929
930
931
932
933
934
935
        mp_load_method_maybe(self_in, MP_QSTR_throw, dest);
        if (dest[0] != MP_OBJ_NULL) {
            *ret_val = mp_call_method_n_kw(1, 0, &throw_value);
            // If .throw() method returned, we assume it's value to yield
            // - any exception would be thrown with nlr_jump().
            return MP_VM_RETURN_YIELD;
        }
        // If there's nowhere to throw exception into, then we assume that object
        // is just incapable to handle it, so any exception thrown into it
        // will be propagated up. This behavior is approved by test_pep380.py
        // test_delegation_of_close_to_non_generator(),
        //  test_delegating_throw_to_non_generator()
        *ret_val = throw_value;
        return MP_VM_RETURN_EXCEPTION;
936
937
938
939
940
941
    }

    assert(0);
    return MP_VM_RETURN_NORMAL; // Should be unreachable
}

Damien George's avatar
Damien George committed
942
mp_obj_t mp_make_raise_obj(mp_obj_t o) {
943
944
945
946
    DEBUG_printf("raise %p\n", o);
    if (mp_obj_is_exception_type(o)) {
        // o is an exception type (it is derived from BaseException (or is BaseException))
        // create and return a new exception instance by calling o
947
948
        // TODO could have an option to disable traceback, then builtin exceptions (eg TypeError)
        // could have const instances in ROM which we return here instead
Damien George's avatar
Damien George committed
949
        return mp_call_function_n_kw(o, 0, 0, NULL);
950
951
952
953
954
955
    } else if (mp_obj_is_exception_instance(o)) {
        // o is an instance of an exception, so use it as the exception
        return o;
    } else {
        // o cannot be used as an exception, so return a type error (which will be raised by the caller)
        return mp_obj_new_exception_msg(&mp_type_TypeError, "exceptions must derive from BaseException");
956
957
958
    }
}

Damien George's avatar
Damien George committed
959
mp_obj_t mp_import_name(qstr name, mp_obj_t fromlist, mp_obj_t level) {
960
961
    DEBUG_printf("import name %s\n", qstr_str(name));

962
    // build args array
963
    mp_obj_t args[5];
964
    args[0] = MP_OBJ_NEW_QSTR(name);
965
966
    args[1] = mp_const_none; // TODO should be globals
    args[2] = mp_const_none; // TODO should be locals
967
968
969
970
    args[3] = fromlist;
    args[4] = level; // must be 0; we don't yet support other values

    // TODO lookup __import__ and call that instead of going straight to builtin implementation
971
    return mp_builtin___import__(5, args);
972
973
}

Damien George's avatar
Damien George committed
974
mp_obj_t mp_import_from(mp_obj_t module, qstr name) {
975
976
    DEBUG_printf("import from %p %s\n", module, qstr_str(name));

Damien George's avatar
Damien George committed
977
    mp_obj_t x = mp_load_attr(module, name);
978
979
980
981
982
983
984
985
    /* TODO convert AttributeError to ImportError
    if (fail) {
        (ImportError, "cannot import name %s", qstr_str(name), NULL)
    }
    */
    return x;
}

Damien George's avatar
Damien George committed
986
void mp_import_all(mp_obj_t module) {
987
988
989
990
991
    DEBUG_printf("import all %p\n", module);

    mp_map_t *map = mp_obj_module_get_globals(module);
    for (uint i = 0; i < map->alloc; i++) {
        if (map->table[i].key != MP_OBJ_NULL) {
Damien George's avatar
Damien George committed
992
            mp_store_name(MP_OBJ_QSTR_VALUE(map->table[i].key), map->table[i].value);
993
994
995
996
        }
    }
}

Damien George's avatar
Damien George committed
997
mp_map_t *mp_locals_get(void) {
998
999
1000
    return map_locals;
}