Repository navigation
Expand file tree
/
Copy pathruntime.c
More file actions
909 lines (819 loc) · 31.6 KB
/
Copy pathruntime.c
File metadata and controls
909 lines (819 loc) · 31.6 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
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
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
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
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
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
// in principle, rt_xxx functions are called only by vm/native/viper and make assumptions about args
// mp_xxx functions are safer and can be called by anyone
// note that rt_assign_xxx are called only from emit*, and maybe we can rename them to reflect this
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "nlr.h"
#include "misc.h"
#include "mpconfig.h"
#include "obj.h"
#include "runtime0.h"
#include "runtime.h"
#include "map.h"
#include "builtin.h"
#if 0 // print debugging info
#define DEBUG_PRINT (1)
#define WRITE_CODE (1)
#define DEBUG_printf(args...) printf(args)
#define DEBUG_OP_printf(args...) printf(args)
#else // don't print debugging info
#define DEBUG_printf(args...) (void)0
#define DEBUG_OP_printf(args...) (void)0
#endif
// TODO make these predefined so they don't take up RAM
qstr rt_q_append;
qstr rt_q_pop;
qstr rt_q_sort;
qstr rt_q_join;
qstr rt_q_format;
qstr rt_q___build_class__;
qstr rt_q___next__;
qstr rt_q_AttributeError;
qstr rt_q_IndexError;
qstr rt_q_KeyError;
qstr rt_q_NameError;
qstr rt_q_TypeError;
qstr rt_q_SyntaxError;
qstr rt_q_ValueError;
// locals and globals need to be pointers because they can be the same in outer module scope
static mp_map_t *map_locals;
static mp_map_t *map_globals;
static mp_map_t map_builtins;
typedef enum {
MP_CODE_NONE,
MP_CODE_BYTE,
MP_CODE_NATIVE,
MP_CODE_INLINE_ASM,
} mp_code_kind_t;
typedef struct _mp_code_t {
mp_code_kind_t kind;
int n_args;
int n_locals;
int n_cells;
int n_stack;
bool is_generator;
union {
struct {
byte *code;
uint len;
} u_byte;
struct {
mp_fun_t fun;
} u_native;
struct {
void *fun;
} u_inline_asm;
};
} mp_code_t;
static int next_unique_code_id;
static mp_code_t *unique_codes;
#ifdef WRITE_CODE
FILE *fp_write_code = NULL;
#endif
void rt_init(void) {
rt_q_append = qstr_from_str_static("append");
rt_q_pop = qstr_from_str_static("pop");
rt_q_sort = qstr_from_str_static("sort");
rt_q_join = qstr_from_str_static("join");
rt_q_format = qstr_from_str_static("format");
rt_q___build_class__ = qstr_from_str_static("__build_class__");
rt_q___next__ = qstr_from_str_static("__next__");
rt_q_AttributeError = qstr_from_str_static("AttributeError");
rt_q_IndexError = qstr_from_str_static("IndexError");
rt_q_KeyError = qstr_from_str_static("KeyError");
rt_q_NameError = qstr_from_str_static("NameError");
rt_q_TypeError = qstr_from_str_static("TypeError");
rt_q_SyntaxError = qstr_from_str_static("SyntaxError");
rt_q_ValueError = qstr_from_str_static("ValueError");
// locals = globals for outer module (see Objects/frameobject.c/PyFrame_New())
map_locals = map_globals = mp_map_new(MP_MAP_QSTR, 1);
mp_qstr_map_lookup(map_globals, qstr_from_str_static("__name__"), true)->value = mp_obj_new_str(qstr_from_str_static("__main__"));
mp_map_init(&map_builtins, MP_MAP_QSTR, 3);
mp_qstr_map_lookup(&map_builtins, rt_q___build_class__, true)->value = rt_make_function_2(mp_builtin___build_class__);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("__repl_print__"), true)->value = rt_make_function_1(mp_builtin___repl_print__);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("abs"), true)->value = rt_make_function_1(mp_builtin_abs);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("all"), true)->value = rt_make_function_1(mp_builtin_all);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("any"), true)->value = rt_make_function_1(mp_builtin_any);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("bool"), true)->value = rt_make_function_var(0, mp_builtin_bool);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("callable"), true)->value = rt_make_function_1(mp_builtin_callable);
#if MICROPY_ENABLE_FLOAT
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("complex"), true)->value = rt_make_function_var(0, mp_builtin_complex);
#endif
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("chr"), true)->value = rt_make_function_1(mp_builtin_chr);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("dict"), true)->value = rt_make_function_0(mp_builtin_dict);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("divmod"), true)->value = rt_make_function_2(mp_builtin_divmod);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("hash"), true)->value = (mp_obj_t)&mp_builtin_hash_obj;
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("iter"), true)->value = (mp_obj_t)&mp_builtin_iter_obj;
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("len"), true)->value = rt_make_function_1(mp_builtin_len);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("list"), true)->value = rt_make_function_var(0, mp_builtin_list);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("max"), true)->value = rt_make_function_var(1, mp_builtin_max);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("min"), true)->value = rt_make_function_var(1, mp_builtin_min);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("next"), true)->value = (mp_obj_t)&mp_builtin_next_obj;
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("ord"), true)->value = rt_make_function_1(mp_builtin_ord);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("pow"), true)->value = rt_make_function_var(2, mp_builtin_pow);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("print"), true)->value = rt_make_function_var(0, mp_builtin_print);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("range"), true)->value = rt_make_function_var(1, mp_builtin_range);
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("set"), true)->value = (mp_obj_t)&mp_builtin_set_obj;
mp_qstr_map_lookup(&map_builtins, qstr_from_str_static("sum"), true)->value = rt_make_function_var(1, mp_builtin_sum);
next_unique_code_id = 2; // 1 is reserved for the __main__ module scope
unique_codes = NULL;
#ifdef WRITE_CODE
fp_write_code = fopen("out-code", "wb");
#endif
}
void rt_deinit(void) {
#ifdef WRITE_CODE
if (fp_write_code != NULL) {
fclose(fp_write_code);
}
#endif
}
int rt_get_unique_code_id(bool is_main_module) {
if (is_main_module) {
return 1;
} else {
return next_unique_code_id++;
}
}
static void alloc_unique_codes(void) {
if (unique_codes == NULL) {
unique_codes = m_new(mp_code_t, next_unique_code_id + 10); // XXX hack until we fix the REPL allocation problem
for (int i = 0; i < next_unique_code_id; i++) {
unique_codes[i].kind = MP_CODE_NONE;
}
}
}
void rt_assign_byte_code(int unique_code_id, byte *code, uint len, int n_args, int n_locals, int n_cells, int n_stack, bool is_generator) {
alloc_unique_codes();
assert(unique_code_id < next_unique_code_id);
unique_codes[unique_code_id].kind = MP_CODE_BYTE;
unique_codes[unique_code_id].n_args = n_args;
unique_codes[unique_code_id].n_locals = n_locals;
unique_codes[unique_code_id].n_cells = n_cells;
unique_codes[unique_code_id].n_stack = n_stack;
unique_codes[unique_code_id].is_generator = is_generator;
unique_codes[unique_code_id].u_byte.code = code;
unique_codes[unique_code_id].u_byte.len = len;
//printf("byte code: %d bytes\n", len);
#ifdef DEBUG_PRINT
DEBUG_printf("assign byte code: id=%d code=%p len=%u n_args=%d\n", unique_code_id, code, len, n_args);
for (int i = 0; i < 128 && i < len; i++) {
if (i > 0 && i % 16 == 0) {
DEBUG_printf("\n");
}
DEBUG_printf(" %02x", code[i]);
}
DEBUG_printf("\n");
extern void mp_show_byte_code(const byte *code, int len);
mp_show_byte_code(code, len);
#ifdef WRITE_CODE
if (fp_write_code != NULL) {
fwrite(code, len, 1, fp_write_code);
fflush(fp_write_code);
}
#endif
#endif
}
void rt_assign_native_code(int unique_code_id, void *fun, uint len, int n_args) {
alloc_unique_codes();
assert(1 <= unique_code_id && unique_code_id < next_unique_code_id);
unique_codes[unique_code_id].kind = MP_CODE_NATIVE;
unique_codes[unique_code_id].n_args = n_args;
unique_codes[unique_code_id].n_locals = 0;
unique_codes[unique_code_id].n_cells = 0;
unique_codes[unique_code_id].n_stack = 0;
unique_codes[unique_code_id].is_generator = false;
unique_codes[unique_code_id].u_native.fun = fun;
printf("native code: %d bytes\n", len);
#ifdef DEBUG_PRINT
DEBUG_printf("assign native code: id=%d fun=%p len=%u n_args=%d\n", unique_code_id, fun, len, n_args);
byte *fun_data = (byte*)(((machine_uint_t)fun) & (~1)); // need to clear lower bit in case it's thumb code
for (int i = 0; i < 128 && i < len; i++) {
if (i > 0 && i % 16 == 0) {
DEBUG_printf("\n");
}
DEBUG_printf(" %02x", fun_data[i]);
}
DEBUG_printf("\n");
#ifdef WRITE_CODE
if (fp_write_code != NULL) {
fwrite(fun_data, len, 1, fp_write_code);
fflush(fp_write_code);
}
#endif
#endif
}
void rt_assign_inline_asm_code(int unique_code_id, void *fun, uint len, int n_args) {
alloc_unique_codes();
assert(1 <= unique_code_id && unique_code_id < next_unique_code_id);
unique_codes[unique_code_id].kind = MP_CODE_INLINE_ASM;
unique_codes[unique_code_id].n_args = n_args;
unique_codes[unique_code_id].n_locals = 0;
unique_codes[unique_code_id].n_cells = 0;
unique_codes[unique_code_id].n_stack = 0;
unique_codes[unique_code_id].is_generator = false;
unique_codes[unique_code_id].u_inline_asm.fun = fun;
#ifdef DEBUG_PRINT
DEBUG_printf("assign inline asm code: id=%d fun=%p len=%u n_args=%d\n", unique_code_id, fun, len, n_args);
byte *fun_data = (byte*)(((machine_uint_t)fun) & (~1)); // need to clear lower bit in case it's thumb code
for (int i = 0; i < 128 && i < len; i++) {
if (i > 0 && i % 16 == 0) {
DEBUG_printf("\n");
}
DEBUG_printf(" %02x", fun_data[i]);
}
DEBUG_printf("\n");
#ifdef WRITE_CODE
if (fp_write_code != NULL) {
fwrite(fun_data, len, 1, fp_write_code);
}
#endif
#endif
}
mp_map_t *rt_get_map_locals(void) {
return map_locals;
}
void rt_set_map_locals(mp_map_t *m) {
map_locals = m;
}
static bool fit_small_int(mp_small_int_t o) {
return true;
}
int rt_is_true(mp_obj_t arg) {
DEBUG_OP_printf("is true %p\n", arg);
if (MP_OBJ_IS_SMALL_INT(arg)) {
if (MP_OBJ_SMALL_INT_VALUE(arg) == 0) {
return 0;
} else {
return 1;
}
} else if (arg == mp_const_none) {
return 0;
} else if (arg == mp_const_false) {
return 0;
} else if (arg == mp_const_true) {
return 1;
} else {
assert(0);
return 0;
}
}
mp_obj_t rt_list_append(mp_obj_t self_in, mp_obj_t arg) {
return mp_obj_list_append(self_in, arg);
}
#define PARSE_DEC_IN_INTG (1)
#define PARSE_DEC_IN_FRAC (2)
#define PARSE_DEC_IN_EXP (3)
mp_obj_t rt_load_const_dec(qstr qstr) {
#if MICROPY_ENABLE_FLOAT
DEBUG_OP_printf("load '%s'\n", qstr_str(qstr));
const char *s = qstr_str(qstr);
int in = PARSE_DEC_IN_INTG;
mp_float_t dec_val = 0;
bool exp_neg = false;
int exp_val = 0;
int exp_extra = 0;
bool imag = false;
for (; *s; s++) {
int dig = *s;
if ('0' <= dig && dig <= '9') {
dig -= '0';
if (in == PARSE_DEC_IN_EXP) {
exp_val = 10 * exp_val + dig;
} else {
dec_val = 10 * dec_val + dig;
if (in == PARSE_DEC_IN_FRAC) {
exp_extra -= 1;
}
}
} else if (in == PARSE_DEC_IN_INTG && dig == '.') {
in = PARSE_DEC_IN_FRAC;
} else if (in != PARSE_DEC_IN_EXP && (dig == 'E' || dig == 'e')) {
in = PARSE_DEC_IN_EXP;
if (s[1] == '+') {
s++;
} else if (s[1] == '-') {
s++;
exp_neg = true;
}
} else if (dig == 'J' || dig == 'j') {
s++;
imag = true;
break;
} else {
// unknown character
break;
}
}
if (*s != 0) {
nlr_jump(mp_obj_new_exception_msg(rt_q_SyntaxError, "invalid syntax for number"));
}
if (exp_neg) {
exp_val = -exp_val;
}
exp_val += exp_extra;
for (; exp_val > 0; exp_val--) {
dec_val *= 10;
}
for (; exp_val < 0; exp_val++) {
dec_val *= 0.1;
}
if (imag) {
return mp_obj_new_complex(0, dec_val);
} else {
return mp_obj_new_float(dec_val);
}
#else
nlr_jump(mp_obj_new_exception_msg(rt_q_SyntaxError, "decimal numbers not supported"));
#endif
}
mp_obj_t rt_load_const_str(qstr qstr) {
DEBUG_OP_printf("load '%s'\n", qstr_str(qstr));
return mp_obj_new_str(qstr);
}
mp_obj_t rt_load_name(qstr qstr) {
// logic: search locals, globals, builtins
DEBUG_OP_printf("load name %s\n", qstr_str(qstr));
mp_map_elem_t *elem = mp_qstr_map_lookup(map_locals, qstr, false);
if (elem == NULL) {
elem = mp_qstr_map_lookup(map_globals, qstr, false);
if (elem == NULL) {
elem = mp_qstr_map_lookup(&map_builtins, qstr, false);
if (elem == NULL) {
nlr_jump(mp_obj_new_exception_msg_1_arg(rt_q_NameError, "name '%s' is not defined", qstr_str(qstr)));
}
}
}
return elem->value;
mp_obj_t rt_load_global(qstr qstr) {
// logic: search globals, builtins
DEBUG_OP_printf("load global %s\n", qstr_str(qstr));
mp_map_elem_t *elem = mp_qstr_map_lookup(map_globals, qstr, false);
if (elem == NULL) {
elem = mp_qstr_map_lookup(&map_builtins, qstr, false);
if (elem == NULL) {
nlr_jump(mp_obj_new_exception_msg_1_arg(rt_q_NameError, "name '%s' is not defined", qstr_str(qstr)));
}
}
return elem->value;
}
mp_obj_t rt_load_build_class(void) {
DEBUG_OP_printf("load_build_class\n");
mp_map_elem_t *elem = mp_qstr_map_lookup(&map_builtins, rt_q___build_class__, false);
if (elem == NULL) {
printf("name doesn't exist: __build_class__\n");
assert(0);
}
return elem->value;
}
mp_obj_t rt_get_cell(mp_obj_t cell) {
return mp_obj_cell_get(cell);
}
void rt_set_cell(mp_obj_t cell, mp_obj_t val) {
mp_obj_cell_set(cell, val);
}
void rt_store_name(qstr qstr, mp_obj_t obj) {
DEBUG_OP_printf("store name %s <- %p\n", qstr_str(qstr), obj);
mp_qstr_map_lookup(map_locals, qstr, true)->value = obj;
}
void rt_store_global(qstr qstr, mp_obj_t obj) {
DEBUG_OP_printf("store global %s <- %p\n", qstr_str(qstr), obj);
mp_qstr_map_lookup(map_globals, qstr, true)->value = obj;
}
mp_obj_t rt_unary_op(int op, mp_obj_t arg) {
DEBUG_OP_printf("unary %d %p\n", op, arg);
if (MP_OBJ_IS_SMALL_INT(arg)) {
mp_small_int_t val = MP_OBJ_SMALL_INT_VALUE(arg);
switch (op) {
case RT_UNARY_OP_NOT: if (val != 0) { return mp_const_true;} else { return mp_const_false; }
case RT_UNARY_OP_POSITIVE: break;
case RT_UNARY_OP_NEGATIVE: val = -val; break;
case RT_UNARY_OP_INVERT: val = ~val; break;
default: assert(0); val = 0;
}
if (fit_small_int(val)) {
return MP_OBJ_NEW_SMALL_INT(val);
} else {
// TODO make a bignum
assert(0);
return mp_const_none;
}
} else { // will be an object (small ints are caught in previous if)
mp_obj_base_t *o = arg;
if (o->type->unary_op != NULL) {
mp_obj_t result = o->type->unary_op(op, arg);
if (result != NULL) {
return result;
}
}
// TODO specify in error message what the operator is
nlr_jump(mp_obj_new_exception_msg_1_arg(rt_q_TypeError, "bad operand type for unary operator: '%s'", o->type->name));
}
}
mp_obj_t rt_binary_op(int op, mp_obj_t lhs, mp_obj_t rhs) {
DEBUG_OP_printf("binary %d %p %p\n", op, lhs, rhs);
if (MP_OBJ_IS_SMALL_INT(lhs) && MP_OBJ_IS_SMALL_INT(rhs)) {
mp_small_int_t lhs_val = MP_OBJ_SMALL_INT_VALUE(lhs);
mp_small_int_t rhs_val = MP_OBJ_SMALL_INT_VALUE(rhs);
switch (op) {
case RT_BINARY_OP_OR:
case RT_BINARY_OP_INPLACE_OR: lhs_val |= rhs_val; break;
case RT_BINARY_OP_XOR:
case RT_BINARY_OP_INPLACE_XOR: lhs_val ^= rhs_val; break;
case RT_BINARY_OP_AND:
case RT_BINARY_OP_INPLACE_AND: lhs_val &= rhs_val; break;
case RT_BINARY_OP_LSHIFT:
case RT_BINARY_OP_INPLACE_LSHIFT: lhs_val <<= rhs_val; break;
case RT_BINARY_OP_RSHIFT:
case RT_BINARY_OP_INPLACE_RSHIFT: lhs_val >>= rhs_val; break;
case RT_BINARY_OP_ADD:
case RT_BINARY_OP_INPLACE_ADD: lhs_val += rhs_val; break;
case RT_BINARY_OP_SUBTRACT:
case RT_BINARY_OP_INPLACE_SUBTRACT: lhs_val -= rhs_val; break;
case RT_BINARY_OP_MULTIPLY:
case RT_BINARY_OP_INPLACE_MULTIPLY: lhs_val *= rhs_val; break;
case RT_BINARY_OP_FLOOR_DIVIDE:
case RT_BINARY_OP_INPLACE_FLOOR_DIVIDE: lhs_val /= rhs_val; break;
#if MICROPY_ENABLE_FLOAT
case RT_BINARY_OP_TRUE_DIVIDE:
case RT_BINARY_OP_INPLACE_TRUE_DIVIDE: return mp_obj_new_float((mp_float_t)lhs_val / (mp_float_t)rhs_val);
#endif
// TODO implement modulo as specified by Python
case RT_BINARY_OP_MODULO:
case RT_BINARY_OP_INPLACE_MODULO: lhs_val %= rhs_val; break;
// TODO check for negative power, and overflow
case RT_BINARY_OP_POWER:
case RT_BINARY_OP_INPLACE_POWER:
{
int ans = 1;
while (rhs_val > 0) {
if (rhs_val & 1) {
ans *= lhs_val;
}
lhs_val *= lhs_val;
rhs_val /= 2;
}
lhs_val = ans;
break;
}
default: printf("%d\n", op); assert(0);
}
if (fit_small_int(lhs_val)) {
return MP_OBJ_NEW_SMALL_INT(lhs_val);
}
} else if (MP_OBJ_IS_OBJ(lhs)) {
mp_obj_base_t *o = lhs;
if (o->type->binary_op != NULL) {
mp_obj_t result = o->type->binary_op(op, lhs, rhs);
if (result != NULL) {
return result;
}
}
}
// TODO specify in error message what the operator is
nlr_jump(mp_obj_new_exception_msg_1_arg(rt_q_TypeError, "unsupported operand type for binary operator: '%s'", mp_obj_get_type_str(lhs)));
}
mp_obj_t rt_compare_op(int op, mp_obj_t lhs, mp_obj_t rhs) {
DEBUG_OP_printf("compare %d %p %p\n", op, lhs, rhs);
// deal with == and !=
if (op == RT_COMPARE_OP_EQUAL || op == RT_COMPARE_OP_NOT_EQUAL) {
if (mp_obj_equal(lhs, rhs)) {
if (op == RT_COMPARE_OP_EQUAL) {
return mp_const_true;
} else {
return mp_const_false;
}
} else {
if (op == RT_COMPARE_OP_EQUAL) {
return mp_const_false;
} else {
return mp_const_true;
}
}
}
// deal with small ints
if (MP_OBJ_IS_SMALL_INT(lhs) && MP_OBJ_IS_SMALL_INT(rhs)) {
mp_small_int_t lhs_val = MP_OBJ_SMALL_INT_VALUE(lhs);
mp_small_int_t rhs_val = MP_OBJ_SMALL_INT_VALUE(rhs);
int cmp;
switch (op) {
case RT_COMPARE_OP_LESS: cmp = lhs_val < rhs_val; break;
case RT_COMPARE_OP_MORE: cmp = lhs_val > rhs_val; break;
case RT_COMPARE_OP_LESS_EQUAL: cmp = lhs_val <= rhs_val; break;
case RT_COMPARE_OP_MORE_EQUAL: cmp = lhs_val >= rhs_val; break;
default: assert(0); cmp = 0;
}
if (cmp) {
return mp_const_true;
} else {
return mp_const_false;
}
}
#if MICROPY_ENABLE_FLOAT
// deal with floats
if (MP_OBJ_IS_TYPE(lhs, &float_type) || MP_OBJ_IS_TYPE(rhs, &float_type)) {
mp_float_t lhs_val = mp_obj_get_float(lhs);
mp_float_t rhs_val = mp_obj_get_float(rhs);
int cmp;
switch (op) {
case RT_COMPARE_OP_LESS: cmp = lhs_val < rhs_val; break;
case RT_COMPARE_OP_MORE: cmp = lhs_val > rhs_val; break;
case RT_COMPARE_OP_LESS_EQUAL: cmp = lhs_val <= rhs_val; break;
case RT_COMPARE_OP_MORE_EQUAL: cmp = lhs_val >= rhs_val; break;
default: assert(0); cmp = 0;
}
if (cmp) {
return mp_const_true;
} else {
return mp_const_false;
}
}
#endif
// not implemented
assert(0);
return mp_const_none;
}
mp_obj_t rt_make_function_from_id(int unique_code_id) {
DEBUG_OP_printf("make_function_from_id %d\n", unique_code_id);
if (unique_code_id < 1 || unique_code_id >= next_unique_code_id) {
// illegal code id
return mp_const_none;
}
// make the function, depending on the code kind
mp_code_t *c = &unique_codes[unique_code_id];
mp_obj_t fun;
switch (c->kind) {
case MP_CODE_BYTE:
fun = mp_obj_new_fun_bc(c->n_args, c->n_locals + c->n_cells + c->n_stack, c->u_byte.code);
break;
case MP_CODE_NATIVE:
switch (c->n_args) {
case 0: fun = rt_make_function_0(c->u_native.fun); break;
case 1: fun = rt_make_function_1((mp_fun_1_t)c->u_native.fun); break;
case 2: fun = rt_make_function_2((mp_fun_2_t)c->u_native.fun); break;
default: assert(0); fun = mp_const_none;
}
break;
case MP_CODE_INLINE_ASM:
fun = mp_obj_new_fun_asm(c->n_args, c->u_inline_asm.fun);
break;
default:
assert(0);
fun = mp_const_none;
}
// check for generator functions and if so wrap in generator object
if (c->is_generator) {
fun = mp_obj_new_gen_wrap(c->n_locals, c->n_cells, c->n_stack, fun);
}
return fun;
}
mp_obj_t rt_make_closure_from_id(int unique_code_id, mp_obj_t closure_tuple) {
// make function object
mp_obj_t ffun = rt_make_function_from_id(unique_code_id);
// wrap function in closure object
return mp_obj_new_closure(ffun, closure_tuple);
}
mp_obj_t rt_call_function_0(mp_obj_t fun) {
return rt_call_function_n(fun, 0, NULL);
}
mp_obj_t rt_call_function_1(mp_obj_t fun, mp_obj_t arg) {
return rt_call_function_n(fun, 1, &arg);
}
mp_obj_t rt_call_function_2(mp_obj_t fun, mp_obj_t arg1, mp_obj_t arg2) {
mp_obj_t args[2];
args[1] = arg1;
args[0] = arg2;
return rt_call_function_n(fun, 2, args);
}
// args are in reverse order in the array
mp_obj_t rt_call_function_n(mp_obj_t fun_in, int n_args, const mp_obj_t *args) {
// 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
DEBUG_OP_printf("calling function %p(n_args=%d, args=%p)\n", fun_in, n_args, args);
if (MP_OBJ_IS_SMALL_INT(fun_in)) {
nlr_jump(mp_obj_new_exception_msg(rt_q_TypeError, "'int' object is not callable"));
} else {
mp_obj_base_t *fun = fun_in;
if (fun->type->call_n != NULL) {
return fun->type->call_n(fun_in, n_args, args);
} else {
nlr_jump(mp_obj_new_exception_msg_1_arg(rt_q_TypeError, "'%s' object is not callable", fun->type->name));
}
}
}
// args are in reverse order in the array; keyword arguments come first, value then key
// eg: (value1, key1, value0, key0, arg1, arg0)
mp_obj_t rt_call_function_n_kw(mp_obj_t fun, uint n_args, uint n_kw, const mp_obj_t *args) {
// TODO
assert(0);
return mp_const_none;
}
// args contains: arg(n_args-1) arg(n_args-2) ... arg(0) self/NULL fun
// if n_args==0 then there are only self/NULL and fun
mp_obj_t rt_call_method_n(uint n_args, const mp_obj_t *args) {
DEBUG_OP_printf("call method %p(self=%p, n_args=%u)\n", args[n_args + 1], args[n_args], n_args);
return rt_call_function_n(args[n_args + 1], n_args + ((args[n_args] == NULL) ? 0 : 1), args);
}
// args contains: kw_val(n_kw-1) kw_key(n_kw-1) ... kw_val(0) kw_key(0) arg(n_args-1) arg(n_args-2) ... arg(0) self/NULL fun
mp_obj_t rt_call_method_n_kw(uint n_args, uint n_kw, const mp_obj_t *args) {
uint n = n_args + 2 * n_kw;
DEBUG_OP_printf("call method %p(self=%p, n_args=%u, n_kw=%u)\n", args[n + 1], args[n], n_args, n_kw);
return rt_call_function_n_kw(args[n + 1], n_args + ((args[n] == NULL) ? 0 : 1), n_kw, args);
}
// items are in reverse order
mp_obj_t rt_build_tuple(int n_args, mp_obj_t *items) {
return mp_obj_new_tuple_reverse(n_args, items);
}
// items are in reverse order
mp_obj_t rt_build_list(int n_args, mp_obj_t *items) {
return mp_obj_new_list_reverse(n_args, items);
}
mp_obj_t rt_build_set(int n_args, mp_obj_t *items) {
return mp_obj_new_set(n_args, items);
}
mp_obj_t rt_store_set(mp_obj_t set, mp_obj_t item) {
mp_set_lookup(set, item, true);
return set;
}
// unpacked items are stored in order into the array pointed to by items
void rt_unpack_sequence(mp_obj_t seq_in, uint num, mp_obj_t *items) {
if (MP_OBJ_IS_TYPE(seq_in, &tuple_type) || MP_OBJ_IS_TYPE(seq_in, &list_type)) {
uint seq_len;
mp_obj_t *seq_items;
if (MP_OBJ_IS_TYPE(seq_in, &tuple_type)) {
mp_obj_tuple_get(seq_in, &seq_len, &seq_items);
} else {
mp_obj_list_get(seq_in, &seq_len, &seq_items);
}
if (seq_len < num) {
nlr_jump(mp_obj_new_exception_msg_1_arg(rt_q_ValueError, "need more than %d values to unpack", (void*)(machine_uint_t)seq_len));
} else if (seq_len > num) {
nlr_jump(mp_obj_new_exception_msg_1_arg(rt_q_ValueError, "too many values to unpack (expected %d)", (void*)(machine_uint_t)num));
}
memcpy(items, seq_items, num * sizeof(mp_obj_t));
} else {
// TODO call rt_getiter and extract via rt_iternext
nlr_jump(mp_obj_new_exception_msg_1_arg(rt_q_TypeError, "'%s' object is not iterable", mp_obj_get_type_str(seq_in)));
}
}
mp_obj_t rt_build_map(int n_args) {
return mp_obj_new_dict(n_args);
}
mp_obj_t rt_store_map(mp_obj_t map, mp_obj_t key, mp_obj_t value) {
// map should always be a dict
return mp_obj_dict_store(map, key, value);
}
mp_obj_t rt_load_attr(mp_obj_t base, qstr attr) {
DEBUG_OP_printf("load attr %s\n", qstr_str(attr));
if (MP_OBJ_IS_TYPE(base, &class_type)) {
mp_map_elem_t *elem = mp_qstr_map_lookup(mp_obj_class_get_locals(base), attr, false);
if (elem == NULL) {
nlr_jump(mp_obj_new_exception_msg_2_args(rt_q_AttributeError, "'%s' object has no attribute '%s'", mp_obj_get_type_str(base), qstr_str(attr)));
}
return elem->value;
} else if (MP_OBJ_IS_TYPE(base, &instance_type)) {
return mp_obj_instance_load_attr(base, attr);
} else if (MP_OBJ_IS_OBJ(base)) {
// generic method lookup
mp_obj_base_t *o = base;
const mp_method_t *meth = &o->type->methods[0];
for (; meth->name != NULL; meth++) {
if (strcmp(meth->name, qstr_str(attr)) == 0) {
return mp_obj_new_bound_meth(base, (mp_obj_t)meth->fun);
}
}
}
nlr_jump(mp_obj_new_exception_msg_2_args(rt_q_AttributeError, "'%s' object has no attribute '%s'", mp_obj_get_type_str(base), qstr_str(attr)));
}
void rt_load_method(mp_obj_t base, qstr attr, mp_obj_t *dest) {
DEBUG_OP_printf("load method %s\n", qstr_str(attr));
if (MP_OBJ_IS_TYPE(base, &gen_instance_type) && attr == rt_q___next__) {
dest[1] = (mp_obj_t)&mp_builtin_next_obj;
dest[0] = base;
return;
} else if (MP_OBJ_IS_TYPE(base, &a
B020
mp;instance_type)) {
mp_obj_instance_load_method(base, attr, dest);
return;
} else if (MP_OBJ_IS_OBJ(base)) {
// generic method lookup
mp_obj_base_t *o = base;
const mp_method_t *meth = &o->type->methods[0];
for (; meth->name != NULL; meth++) {
if (strcmp(meth->name, qstr_str(attr)) == 0) {
dest[1] = (mp_obj_t)meth->fun;
dest[0] = base;
return;
}
}
}
// no method; fallback to load_attr
dest[1] = rt_load_attr(base, attr);
dest[0] = NULL;
}
void rt_store_attr(mp_obj_t base, qstr attr, mp_obj_t value) {
DEBUG_OP_printf("store attr %p.%s <- %p\n", base, qstr_str(attr), value);
if (MP_OBJ_IS_TYPE(base, &class_type)) {
// TODO CPython allows STORE_ATTR to a class, but is this the correct implementation?
mp_map_t *locals = mp_obj_class_get_locals(base);
mp_qstr_map_lookup(locals, attr, true)->value = value;
} else if (MP_OBJ_IS_TYPE(base, &instance_type)) {
mp_obj_instance_store_attr(base, attr, value);
} else {
printf("?AttributeError: '%s' object has no attribute '%s'\n", mp_obj_get_type_str(base), qstr_str(attr));
assert(0);
}
}
void rt_store_subscr(mp_obj_t base, mp_obj_t index, mp_obj_t value) {
DEBUG_OP_printf("store subscr %p[%p] <- %p\n", base, index, value);
if (MP_OBJ_IS_TYPE(base, &list_type)) {
// list store
mp_obj_list_store(base, index, value);
} else if (MP_OBJ_IS_TYPE(base, &dict_type)) {
// dict store
mp_obj_dict_store(base, index, value);
} else {
assert(0);
}
}
mp_obj_t rt_getiter(mp_obj_t o_in) {
if (MP_OBJ_IS_SMALL_INT(o_in)) {
nlr_jump(mp_obj_new_exception_msg(rt_q_TypeError, "'int' object is not iterable"));
} else {
mp_obj_base_t *o = o_in;
if (o->type->getiter != NULL) {
return o->type->getiter(o_in);
} else {
nlr_jump(mp_obj_new_exception_msg_1_arg(rt_q_TypeError, "'%s' object is not iterable", o->type->name));
}
}
}
mp_obj_t rt_iternext(mp_obj_t o_in) {
if (MP_OBJ_IS_SMALL_INT(o_in)) {
nlr_jump(mp_obj_new_exception_msg(rt_q_TypeError, "? 'int' object is not iterable"));
} else {
mp_obj_base_t *o = o_in;
if (o->type->iternext != NULL) {
return o->type->iternext(o_in);
} else {
nlr_jump(mp_obj_new_exception_msg_1_arg(rt_q_TypeError, "? '%s' object is not iterable", o->type->name));
}
}
}
mp_obj_t rt_import_name(qstr name, mp_obj_t fromlist, mp_obj_t level) {
// build args array
mp_obj_t args[5];
args[0] = mp_obj_new_str(name);
args[1] = mp_const_none; // TODO should be globals
args[2] = mp_const_none; // TODO should be locals
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
return mp_builtin___import__(5, args);
}
mp_obj_t rt_import_from(mp_obj_t module, qstr name) {
mp_obj_t x = rt_load_attr(module, name);
/* TODO convert AttributeError to ImportError
if (fail) {
(ImportError, "cannot import name %s", qstr_str(name), NULL)
}
*/
return x;
}
// these must correspond to the respective enum
void *const rt_fun_table[RT_F_NUMBER_OF] = {
rt_load_const_dec,
rt_load_const_str,
rt_load_name,
rt_load_global,
rt_load_build_class,
rt_load_attr,
rt_load_method,
rt_store_name,
rt_store_attr,
rt_store_subscr,
rt_is_true,
rt_unary_op,
rt_build_tuple,
rt_build_list,
rt_list_append,
rt_build_map,
rt_store_map,
rt_build_set,
rt_store_set,
rt_make_function_from_id,
rt_call_function_n,
rt_call_method_n,
rt_binary_op,
rt_compare_op,
rt_getiter,
rt_iternext,
};
/*
void rt_f_vector(rt_fun_kind_t fun_kind) {
(rt_f_table[fun_kind])();
}
*/