Repository navigation
Expand file tree
/
Copy pathcompile.c
More file actions
3111 lines (2816 loc) · 119 KB
/
Copy pathcompile.c
File metadata and controls
3111 lines (2816 loc) · 119 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
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#include <unistd.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "misc.h"
#include "mpconfig.h"
#include "lexer.h"
#include "parse.h"
#include "scope.h"
#include "compile.h"
#include "runtime0.h"
#include "emit.h"
// TODO need to mangle __attr names
#define MICROPY_EMIT_NATIVE (MICROPY_EMIT_X64 || MICROPY_EMIT_THUMB)
typedef enum {
PN_none = 0,
#define DEF_RULE(rule, comp, kind, arg...) PN_##rule,
#include "grammar.h"
#undef DEF_RULE
PN_maximum_number_of,
} pn_kind_t;
#define EMIT(fun, arg...) (comp->emit_method_table->fun(comp->emit, ##arg))
#define EMIT_INLINE_ASM(fun, arg...) (comp->emit_inline_asm_method_table->fun(comp->emit_inline_asm, ##arg))
#define EMIT_OPT_NONE (0)
#define EMIT_OPT_BYTE_CODE (1)
#define EMIT_OPT_NATIVE_PYTHON (2)
#define EMIT_OPT_VIPER (3)
#define EMIT_OPT_ASM_THUMB (4)
typedef struct _compiler_t {
qstr qstr___class__;
qstr qstr___locals__;
qstr qstr___name__;
qstr qstr___module__;
qstr qstr___qualname__;
qstr qstr___doc__;
qstr qstr_assertion_error;
qstr qstr_micropython;
qstr qstr_byte_code;
qstr qstr_native;
qstr qstr_viper;
qstr qstr_asm_thumb;
qstr qstr_range;
bool is_repl;
pass_kind_t pass;
bool had_error; // try to keep compiler clean from nlr
int next_label;
int break_label;
int continue_label;
int except_nest_level;
int n_arg_keyword;
bool have_star_arg;
bool have_dbl_star_arg;
bool have_bare_star;
int param_pass;
int param_pass_num_dict_params;
int param_pass_num_default_params;
scope_t *scope_head;
scope_t *scope_cur;
emit_t *emit; // current emitter
const emit_method_table_t *emit_method_table; // current emit method table
emit_inline_asm_t *emit_inline_asm; // current emitter for inline asm
const emit_inline_asm_method_table_t *emit_inline_asm_method_table; // current emit method table for inline asm
} compiler_t;
mp_parse_node_t fold_constants(mp_parse_node_t pn) {
if (MP_PARSE_NODE_IS_STRUCT(pn)) {
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
int n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
// fold arguments first
for (int i = 0; i < n; i++) {
pns->nodes[i] = fold_constants(pns->nodes[i]);
}
switch (MP_PARSE_NODE_STRUCT_KIND(pns)) {
case PN_shift_expr:
if (n == 3 && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[0]) && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[2])) {
int arg0 = MP_PARSE_NODE_LEAF_ARG(pns->nodes[0]);
int arg1 = MP_PARSE_NODE_LEAF_ARG(pns->nodes[2]);
if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_DBL_LESS)) {
#if MICROPY_EMIT_CPYTHON
// can overflow; enabled only to compare with CPython
pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, arg0 << arg1);
#endif
} else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_DBL_MORE)) {
pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, arg0 >> arg1);
} else {
// shouldn't happen
assert(0);
}
}
break;
case PN_arith_expr:
// overflow checking here relies on SMALL_INT being strictly smaller than machine_int_t
if (n == 3 && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[0]) && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[2])) {
machine_int_t arg0 = MP_PARSE_NODE_LEAF_ARG(pns->nodes[0]);
machine_int_t arg1 = MP_PARSE_NODE_LEAF_ARG(pns->nodes[2]);
machine_int_t res;
if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_PL
8000
US)) {
res = arg0 + arg1;
} else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_MINUS)) {
res = arg0 - arg1;
} else {
// shouldn't happen
assert(0);
res = 0;
}
if (MP_FIT_SMALL_INT(res)) {
pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, res);
}
}
break;
case PN_term:
if (n == 3 && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[0]) && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[2])) {
int arg0 = MP_PARSE_NODE_LEAF_ARG(pns->nodes[0]);
int arg1 = MP_PARSE_NODE_LEAF_ARG(pns->nodes[2]);
if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_STAR)) {
#if MICROPY_EMIT_CPYTHON
// can overflow; enabled only to compare with CPython
pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, arg0 * arg1);
#endif
} else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_SLASH)) {
; // pass
} else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_PERCENT)) {
// XXX implement this properly as Python's % operator acts differently to C's
pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, arg0 % arg1);
} else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_DBL_SLASH)) {
// XXX implement this properly as Python's // operator acts differently to C's
pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, arg0 / arg1);
} else {
// shouldn't happen
assert(0);
}
}
break;
case PN_factor_2:
if (MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[1])) {
machine_int_t arg = MP_PARSE_NODE_LEAF_ARG(pns->nodes[1]);
if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[0], MP_TOKEN_OP_PLUS)) {
pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, arg);
} else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[0], MP_TOKEN_OP_MINUS)) {
pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, -arg);
} else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[0], MP_TOKEN_OP_TILDE)) {
pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, ~arg);
} else {
// shouldn't happen
assert(0);
}
}
break;
#if MICROPY_EMIT_CPYTHON
case PN_power:
// can overflow; enabled only to compare with CPython
if (MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[0]) && MP_PARSE_NODE_IS_NULL(pns->nodes[1]) && !MP_PARSE_NODE_IS_NULL(pns->nodes[2])) {
mp_parse_node_struct_t* pns2 = (mp_parse_node_struct_t*)pns->nodes[2];
if (MP_PARSE_NODE_IS_SMALL_INT(pns2->nodes[0])) {
int power = MP_PARSE_NODE_LEAF_ARG(pns2->nodes[0]);
if (power >= 0) {
int ans = 1;
int base = MP_PARSE_NODE_LEAF_ARG(pns->nodes[0]);
for (; power > 0; power--) {
ans *= base;
}
pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, ans);
}
}
}
break;
#endif
}
}
return pn;
}
void compile_node(compiler_t *comp, mp_parse_node_t pn);
static int comp_next_label(compiler_t *comp) {
return comp->next_label++;
}
static scope_t *scope_new_and_link(compiler_t *comp, scope_kind_t kind, mp_parse_node_t pn, uint emit_options) {
scope_t *scope = scope_new(kind, pn, rt_get_unique_code_id(kind == SCOPE_MODULE), emit_options);
scope->parent = comp->scope_cur;
scope->next = NULL;
if (comp->scope_head == NULL) {
comp->scope_head = scope;
} else {
scope_t *s = comp->scope_head;
while (s->next != NULL) {
s = s->next;
}
s->next = scope;
}
return scope;
}
static int list_len(mp_parse_node_t pn, int pn_kind) {
if (MP_PARSE_NODE_IS_NULL(pn)) {
return 0;
} else if (MP_PARSE_NODE_IS_LEAF(pn)) {
return 1;
} else {
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
if (MP_PARSE_NODE_STRUCT_KIND(pns) != pn_kind) {
return 1;
} else {
return MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
}
}
}
static void apply_to_single_or_list(compiler_t *comp, mp_parse_node_t pn, int pn_list_kind, void (*f)(compiler_t*, mp_parse_node_t)) {
if (MP_PARSE_NODE_IS_STRUCT(pn) && MP_PARSE_NODE_STRUCT_KIND((mp_parse_node_struct_t*)pn) == pn_list_kind) {
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
int num_nodes = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
for (int i = 0; i < num_nodes; i++) {
f(comp, pns->nodes[i]);
}
} else if (!MP_PARSE_NODE_IS_NULL(pn)) {
f(comp, pn);
}
}
static int list_get(mp_parse_node_t *pn, int pn_kind, mp_parse_node_t **nodes) {
if (MP_PARSE_NODE_IS_NULL(*pn)) {
*nodes = NULL;
return 0;
} else if (MP_PARSE_NODE_IS_LEAF(*pn)) {
*nodes = pn;
return 1;
} else {
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)(*pn);
if (MP_PARSE_NODE_STRUCT_KIND(pns) != pn_kind) {
*nodes = pn;
return 1;
} else {
*nodes = pns->nodes;
return MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
}
}
}
void compile_do_nothing(compiler_t *comp, mp_parse_node_struct_t *pns) {
}
void compile_generic_all_nodes(compiler_t *comp, mp_parse_node_struct_t *pns) {
int num_nodes = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
for (int i = 0; i < num_nodes; i++) {
compile_node(comp, pns->nodes[i]);
}
}
#if MICROPY_EMIT_CPYTHON
static bool cpython_c_tuple_is_const(mp_parse_node_t pn) {
if (!MP_PARSE_NODE_IS_LEAF(pn)) {
return false;
}
if (MP_PARSE_NODE_IS_ID(pn)) {
return false;
}
return true;
}
static void cpython_c_print_quoted_str(vstr_t *vstr, qstr qstr, bool bytes) {
const char *str = qstr_str(qstr);
int len = strlen(str);
bool has_single_quote = false;
bool has_double_quote = false;
for (int i = 0; i < len; i++) {
if (str[i] == '\'') {
has_single_quote = true;
} else if (str[i] == '"') {
has_double_quote = true;
}
}
if (bytes) {
vstr_printf(vstr, "b");
}
bool quote_single = false;
if (has_single_quote && !has_double_quote) {
vstr_printf(vstr, "\"");
} else {
quote_single = true;
vstr_printf(vstr, "'");
}
for (int i = 0; i < len; i++) {
if (str[i] == '\n') {
vstr_printf(vstr, "\\n");
} else if (str[i] == '\\') {
vstr_printf(vstr, "\\\\");
} else if (str[i] == '\'' && quote_single) {
vstr_printf(vstr, "\\'");
} else {
vstr_printf(vstr, "%c", str[i]);
}
}
if (has_single_quote && !has_double_quote) {
vstr_printf(vstr, "\"");
} else {
vstr_printf(vstr, "'");
}
}
static void cpython_c_tuple_emit_const(compiler_t *comp, mp_parse_node_t pn, vstr_t *vstr) {
assert(MP_PARSE_NODE_IS_LEAF(pn));
int arg = MP_PARSE_NODE_LEAF_ARG(pn);
switch (MP_PARSE_NODE_LEAF_KIND(pn)) {
case MP_PARSE_NODE_ID: assert(0);
case MP_PARSE_NODE_SMALL_INT: vstr_printf(vstr, "%d", arg); break;
case MP_PARSE_NODE_INTEGER: vstr_printf(vstr, "%s", qstr_str(arg)); break;
case MP_PARSE_NODE_DECIMAL: vstr_printf(vstr, "%s", qstr_str(arg)); break;
case MP_PARSE_NODE_STRING: cpython_c_print_quoted_str(vstr, arg, false); break;
case MP_PARSE_NODE_BYTES: cpython_c_print_quoted_str(vstr, arg, true); break;
case MP_PARSE_NODE_TOKEN:
switch (arg) {
case MP_TOKEN_KW_FALSE: vstr_printf(vstr, "False"); break;
case MP_TOKEN_KW_NONE: vstr_printf(vstr, "None"); break;
case MP_TOKEN_KW_TRUE: vstr_printf(vstr, "True"); break;
default: assert(0);
}
break;
default: assert(0);
}
}
static void cpython_c_tuple(compiler_t *comp, mp_parse_node_t pn, mp_parse_node_struct_t *pns_list) {
int n = 0;
if (pns_list != NULL) {
n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns_list);
}
int total = n;
bool is_const = true;
if (!MP_PARSE_NODE_IS_NULL(pn)) {
total += 1;
if (!cpython_c_tuple_is_const(pn)) {
is_const = false;
}
}
for (int i = 0; i < n; i++) {
if (!cpython_c_tuple_is_const(pns_list->nodes[i])) {
is_const = false;
break;
}
}
if (total > 0 && is_const) {
bool need_comma = false;
vstr_t *vstr = vstr_new();
vstr_printf(vstr, "(");
if (!MP_PARSE_NODE_IS_NULL(pn)) {
cpython_c_tuple_emit_const(comp, pn, vstr);
need_comma = true;
}
for (int i = 0; i < n; i++) {
if (need_comma) {
vstr_printf(vstr, ", ");
}
cpython_c_tuple_emit_const(comp, pns_list->nodes[i], vstr);
need_comma = true;
}
if (total == 1) {
vstr_printf(vstr, ",)");
} else {
vstr_printf(vstr, ")");
}
EMIT(load_const_verbatim_str, vstr_str(vstr));
vstr_free(vstr);
} else {
if (!MP_PARSE_NODE_IS_NULL(pn)) {
compile_node(comp, pn);
}
for (int i = 0; i < n; i++) {
compile_node(comp, pns_list->nodes[i]);
}
EMIT(build_tuple, total);
}
}
#endif
// funnelling all tuple creations through this function is purely so we can optionally agree with CPython
void c_tuple(compiler_t *comp, mp_parse_node_t pn, mp_parse_node_struct_t *pns_list) {
#if MICROPY_EMIT_CPYTHON
cpython_c_tuple(comp, pn, pns_list);
#else
int total = 0;
if (!MP_PARSE_NODE_IS_NULL(pn)) {
compile_node(comp, pn);
total += 1;
}
if (pns_list != NULL) {
int n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns_list);
for (int i = 0; i < n; i++) {
compile_node(comp, pns_list->nodes[i]);
}
total += n;
}
EMIT(build_tuple, total);
#endif
}
void compile_generic_tuple(compiler_t *comp, mp_parse_node_struct_t *pns) {
// a simple tuple expression
c_tuple(comp, MP_PARSE_NODE_NULL, pns);
}
static bool node_is_const_false(mp_parse_node_t pn) {
return MP_PARSE_NODE_IS_TOKEN_KIND(pn, MP_TOKEN_KW_FALSE);
// untested: || (MP_PARSE_NODE_IS_SMALL_INT(pn) && MP_PARSE_NODE_LEAF_ARG(pn) == 1);
}
static bool node_is_const_true(mp_parse_node_t pn) {
return MP_PARSE_NODE_IS_TOKEN_KIND(pn, MP_TOKEN_KW_TRUE) || (MP_PARSE_NODE_IS_SMALL_INT(pn) && MP_PARSE_NODE_LEAF_ARG(pn) == 1);
}
#if MICROPY_EMIT_CPYTHON
// the is_nested variable is purely to match with CPython, which doesn't fully optimise not's
static void cpython_c_if_cond(compiler_t *comp, mp_parse_node_t pn, bool jump_if, int label, bool is_nested) {
if (node_is_const_false(pn)) {
if (jump_if == false) {
EMIT(jump, label);
}
return;
} else if (node_is_const_true(pn)) {
if (jump_if == true) {
EMIT(jump, label);
}
return;
} else if (MP_PARSE_NODE_IS_STRUCT(pn)) {
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
int n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_or_test) {
if (jump_if == false) {
int label2 = comp_next_label(comp);
for (int i = 0; i < n - 1; i++) {
cpython_c_if_cond(comp, pns->nodes[i], true, label2, true);
}
cpython_c_if_cond(comp, pns->nodes[n - 1], false, label, true);
EMIT(label_assign, label2);
} else {
for (int i = 0; i < n; i++) {
cpython_c_if_cond(comp, pns->nodes[i], true, label, true);
}
}
return;
} else if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_and_test) {
if (jump_if == false) {
for (int i = 0; i < n; i++) {
cpython_c_if_cond(comp, pns->nodes[i], false, label, true);
}
} else {
int label2 = comp_next_label(comp);
for (int i = 0; i < n - 1; i++) {
cpython_c_if_cond(comp, pns->nodes[i], false, label2, true);
}
cpython_c_if_cond(comp, pns->nodes[n - 1], true, label, true);
EMIT(label_assign, label2);
}
return;
} else if (!is_nested && MP_PARSE_NODE_STRUCT_KIND(pns) == PN_not_test_2) {
cpython_c_if_cond(comp, pns->nodes[0], !jump_if, label, true);
return;
}
}
// nothing special, fall back to default compiling for node and jump
compile_node(comp, pn);
if (jump_if == false) {
EMIT(pop_jump_if_false, label);
} else {
EMIT(pop_jump_if_true, label);
}
}
#endif
static void c_if_cond(compiler_t *comp, mp_parse_node_t pn, bool jump_if, int label) {
#if MICROPY_EMIT_CPYTHON
cpython_c_if_cond(comp, pn, jump_if, label, false);
#else
if (node_is_const_false(pn)) {
if (jump_if == false) {
EMIT(jump, label);
}
return;
} else if (node_is_const_true(pn)) {
if (jump_if == true) {
EMIT(jump, label);
}
return;
} else if (MP_PARSE_NODE_IS_STRUCT(pn)) {
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
int n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_or_test) {
if (jump_if == false) {
int label2 = comp_next_label(comp);
for (int i = 0; i < n - 1; i++) {
c_if_cond(comp, pns->nodes[i], true, label2);
}
c_if_cond(comp, pns->nodes[n - 1], false, label);
EMIT(label_assign, label2);
} else {
for (int i = 0; i < n; i++) {
c_if_cond(comp, pns->nodes[i], true, label);
}
}
return;
} else if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_and_test) {
if (jump_if == false) {
for (int i = 0; i < n; i++) {
c_if_cond(comp, pns->nodes[i], false, label);
}
} else {
int label2 = comp_next_label(comp);
for (int i = 0; i < n - 1; i++) {
c_if_cond(comp, pns->nodes[i], false, label2);
}
c_if_cond(comp, pns->nodes[n - 1], true, label);
EMIT(label_assign, label2);
}
return;
} else if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_not_test_2) {
c_if_cond(comp, pns->nodes[0], !jump_if, label);
return;
}
}
// nothing special, fall back to default compiling for node and jump
compile_node(comp, pn);
if (jump_if == false) {
EMIT(pop_jump_if_false, label);
} else {
EMIT(pop_jump_if_true, label);
}
#endif
}
typedef enum { ASSIGN_STORE, ASSIGN_AUG_LOAD, ASSIGN_AUG_STORE } assign_kind_t;
void c_assign(compiler_t *comp, mp_parse_node_t pn, assign_kind_t kind);
void c_assign_power(compiler_t *comp, mp_parse_node_struct_t *pns, assign_kind_t assign_kind) {
if (assign_kind != ASSIGN_AUG_STORE) {
compile_node(comp, pns->nodes[0]);
}
if (MP_PARSE_NODE_IS_STRUCT(pns->nodes[1])) {
mp_parse_node_struct_t *pns1 = (mp_parse_node_struct_t*)pns->nodes[1];
if (MP_PARSE_NODE_STRUCT_KIND(pns1) == PN_power_trailers) {
int n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns1);
if (assign_kind != ASSIGN_AUG_STORE) {
for (int i = 0; i < n - 1; i++) {
compile_node(comp, pns1->nodes[i]);
}
}
assert(MP_PARSE_NODE_IS_STRUCT(pns1->nodes[n - 1]));
pns1 = (mp_parse_node_struct_t*)pns1->nodes[n - 1];
}
if (MP_PARSE_NODE_STRUCT_KIND(pns1) == PN_trailer_paren) {
printf("SyntaxError: can't assign to function call\n");
return;
} else if (MP_PARSE_NODE_STRUCT_KIND(pns1) == PN_trailer_bracket) {
if (assign_kind == ASSIGN_AUG_STORE) {
EMIT(rot_three);
EMIT(store_subscr);
} else {
compile_node(comp, pns1->nodes[0]);
if (assign_kind == ASSIGN_AUG_LOAD) {
EMIT(dup_top_two);
EMIT(binary_op, RT_BINARY_OP_SUBSCR);
} else {
EMIT(store_subscr);
}
}
} else if (MP_PARSE_NODE_STRUCT_KIND(pns1) == PN_trailer_period) {
assert(MP_PARSE_NODE_IS_ID(pns1->nodes[0]));
if (assign_kind == ASSIGN_AUG_LOAD) {
EMIT(dup_top);
EMIT(load_attr, MP_PARSE_NODE_LEAF_ARG(pns1->nodes[0]));
} else {
if (assign_kind == ASSIGN_AUG_STORE) {
EMIT(rot_two);
}
EMIT(store_attr, MP_PARSE_NODE_LEAF_ARG(pns1->nodes[0]));
}
} else {
// shouldn't happen
assert(0);
}
} else {
// shouldn't happen
assert(0);
}
if (!MP_PARSE_NODE_IS_NULL(pns->nodes[2])) {
// SyntaxError, cannot assign
assert(0);
}
}
void c_assign_tuple(compiler_t *comp, int n, mp_parse_node_t *nodes) {
assert(n >= 0);
int have_star_index = -1;
for (int i = 0; i < n; i++) {
if (MP_PARSE_NODE_IS_STRUCT_KIND(nodes[i], PN_star_expr)) {
if (have_star_index < 0) {
EMIT(unpack_ex, i, n - i - 1);
have_star_index = i;
} else {
printf("SyntaxError: two starred expressions in assignment\n");
return;
}
}
}
if (have_star_index < 0) {
EMIT(unpack_sequence, n);
}
for (int i = 0; i < n; i++) {
if (i == have_star_index) {
c_assign(comp, ((mp_parse_node_struct_t*)nodes[i])->nodes[0], ASSIGN_STORE);
} else {
c_assign(comp, nodes[i], ASSIGN_STORE);
}
}
}
// assigns top of stack to pn
void c_assign(compiler_t *comp, mp_parse_node_t pn, assign_kind_t assign_kind) {
tail_recursion:
if (MP_PARSE_NODE_IS_NULL(pn)) {
assert(0);
} else if (MP_PARSE_NODE_IS_LEAF(pn)) {
if (MP_PARSE_NODE_IS_ID(pn)) {
int arg = MP_PARSE_NODE_LEAF_ARG(pn);
switch (assign_kind) {
case ASSIGN_STORE:
case ASSIGN_AUG_STORE:
EMIT(store_id, arg);
break;
case ASSIGN_AUG_LOAD:
EMIT(load_id, arg);
break;
}
} else {
printf("SyntaxError: can't assign to literal\n");
return;
}
} else {
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
switch (MP_PARSE_NODE_STRUCT_KIND(pns)) {
case PN_power:
// lhs is an index or attribute
c_assign_power(comp, pns, assign_kind);
break;
case PN_testlist_star_expr:
case PN_exprlist:
// lhs is a tuple
if (assign_kind != ASSIGN_STORE) {
goto bad_aug;
}
c_assign_tuple(comp, MP_PARSE_NODE_STRUCT_NUM_NODES(pns), pns->nodes);
break;
case PN_atom_paren:
// lhs is something in parenthesis
if (MP_PARSE_NODE_IS_NULL(pns->nodes[0])) {
// empty tuple
printf("SyntaxError: can't assign to ()\n");
return;
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_testlist_comp)) {
pns = (mp_parse_node_struct_t*)pns->nodes[0];
goto testlist_comp;
} else {
// parenthesis around 1 item, is just that item
pn = pns->nodes[0];
goto tail_recursion;
}
break;
case PN_atom_bracket:
// lhs is something in brackets
if (assign_kind != ASSIGN_STORE) {
goto bad_aug;
}
if (MP_PARSE_NODE_IS_NULL(pns->nodes[0])) {
// empty list, assignment allowed
c_assign_tuple(comp, 0, NULL);
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_testlist_comp)) {
pns = (mp_parse_node_struct_t*)pns->nodes[0];
goto testlist_comp;
} else {
// brackets around 1 item
c_assign_tuple(comp, 1, &pns->nodes[0]);
}
break;
default:
printf("unknown assign, %u\n", (uint)MP_PARSE_NODE_STRUCT_KIND(pns));
assert(0);
}
return;
testlist_comp:
// lhs is a sequence
if (MP_PARSE_NODE_IS_STRUCT(pns->nodes[1])) {
mp_parse_node_struct_t *pns2 = (mp_parse_node_struct_t*)pns->nodes[1];
if (MP_PARSE_NODE_STRUCT_KIND(pns2) == PN_testlist_comp_3b) {
// sequence of one item, with trailing comma
assert(MP_PARSE_NODE_IS_NULL(pns2->nodes[0]));
c_assign_tuple(comp, 1, &pns->nodes[0]);
} else if (MP_PARSE_NODE_STRUCT_KIND(pns2) == PN_testlist_comp_3c) {
// sequence of many items
// TODO call c_assign_tuple instead
int n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns2);
EMIT(unpack_sequence, 1 + n);
c_assign(comp, pns->nodes[0], ASSIGN_STORE);
for (int i = 0; i < n; i++) {
c_assign(comp, pns2->nodes[i], ASSIGN_STORE);
}
} else if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_comp_for) {
// TODO not implemented
assert(0);
} else {
// sequence with 2 items
goto sequence_with_2_items;
}
} else {
// sequence with 2 items
sequence_with_2_items:
c_assign_tuple(comp, 2, pns->nodes);
}
return;
}
return;
bad_aug:
printf("SyntaxError: illegal expression for augmented assignment\n");
}
// stuff for lambda and comprehensions and generators
void close_over_variables_etc(compiler_t *comp, scope_t *this_scope, int n_dict_params, int n_default_params) {
// make closed over variables, if any
// ensure they are closed over in the order defined in the outer scope (mainly to agree with CPython)
int nfree = 0;
if (comp->scope_cur->kind != SCOPE_MODULE) {
for (int i = 0; i < comp->scope_cur->id_info_len; i++) {
id_info_t *id = &comp->scope_cur->id_info[i];
if (id->kind == ID_INFO_KIND_CELL || id->kind == ID_INFO_KIND_FREE) {
for (int j = 0; j < this_scope->id_info_len; j++) {
10BC8
id_info_t *id2 = &this_scope->id_info[j];
if (id2->kind == ID_INFO_KIND_FREE && id->qstr == id2->qstr) {
EMIT(load_closure, id->qstr, id->local_num);
nfree += 1;
}
}
}
}
}
if (nfree > 0) {
EMIT(build_tuple, nfree);
}
// make the function/closure
if (nfree == 0) {
EMIT(make_function, this_scope, n_dict_params, n_default_params);
} else {
EMIT(make_closure, this_scope, n_dict_params, n_default_params);
}
}
void compile_funcdef_param(compiler_t *comp, mp_parse_node_t pn) {
if (MP_PARSE_NODE_IS_STRUCT_KIND(pn, PN_typedargslist_name)) {
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
if (!MP_PARSE_NODE_IS_NULL(pns->nodes[2])) {
// this parameter has a default value
// in CPython, None (and True, False?) as default parameters are loaded with LOAD_NAME; don't understandy why
if (comp->have_bare_star) {
comp->param_pass_num_dict_params += 1;
if (comp->param_pass == 1) {
EMIT(load_const_id, MP_PARSE_NODE_LEAF_ARG(pns->nodes[0]));
compile_node(comp, pns->nodes[2]);
}
} else {
comp->param_pass_num_default_params += 1;
if (comp->param_pass == 2) {
compile_node(comp, pns->nodes[2]);
}
}
}
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pn, PN_typedargslist_star)) {
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
if (MP_PARSE_NODE_IS_NULL(pns->nodes[0])) {
// bare star
comp->have_bare_star = true;
}
}
}
// leaves function object on stack
// returns function name
qstr compile_funcdef_helper(compiler_t *comp, mp_parse_node_struct_t *pns, uint emit_options) {
if (comp->pass == PASS_1) {
// create a new scope for this function
scope_t *s = scope_new_and_link(comp, SCOPE_FUNCTION, (mp_parse_node_t)pns, emit_options);
// store the function scope so the compiling function can use it at each pass
pns->nodes[4] = (mp_parse_node_t)s;
}
// save variables (probably don't need to do this, since we can't have nested definitions..?)
bool old_have_bare_star = comp->have_bare_star;
int old_param_pass = comp->param_pass;
int old_param_pass_num_dict_params = comp->param_pass_num_dict_params;
int old_param_pass_num_default_params = comp->param_pass_num_default_params;
// compile default parameters
comp->have_bare_star = false;
comp->param_pass = 1; // pass 1 does any default parameters after bare star
comp->param_pass_num_dict_params = 0;
comp->param_pass_num_default_params = 0;
apply_to_single_or_list(comp, pns->nodes[1], PN_typedargslist, compile_funcdef_param);
comp->have_bare_star = false;
comp->param_pass = 2; // pass 2 does any default parameters before bare star
comp->param_pass_num_dict_params = 0;
comp->param_pass_num_default_params = 0;
apply_to_single_or_list(comp, pns->nodes[1], PN_typedargslist, compile_funcdef_param);
// get the scope for this function
scope_t *fscope = (scope_t*)pns->nodes[4];
// make the function
close_over_variables_etc(comp, fscope, comp->param_pass_num_dict_params, comp->param_pass_num_default_params);
// restore variables
comp->have_bare_star = old_have_bare_star;
comp->param_pass = old_param_pass;
comp->param_pass_num_dict_params = old_param_pass_num_dict_params;
comp->param_pass_num_default_params = old_param_pass_num_default_params;
// return its name (the 'f' in "def f(...):")
return fscope->simple_name;
}
// leaves class object on stack
// returns class name
qstr compile_classdef_helper(compiler_t *comp, mp_parse_node_struct_t *pns, uint emit_options) {
if (comp->pass == PASS_1) {
// create a new scope for this class
scope_t *s = scope_new_and_link(comp, SCOPE_CLASS, (mp_parse_node_t)pns, emit_options);
// store the class scope so the compiling function can use it at each pass
pns->nodes[3] = (mp_parse_node_t)s;
}
EMIT(load_build_class);
// scope for this class
scope_t *cscope = (scope_t*)pns->nodes[3];
// compile the class
close_over_variables_etc(comp, cscope, 0, 0);
// get its name
EMIT(load_const_id, cscope->simple_name);
// nodes[1] has parent classes, if any
if (MP_PARSE_NODE_IS_NULL(pns->nodes[1])) {
// no parent classes
EMIT(call_function, 2, 0, false, false);
} else {
// have a parent class or classes
// TODO what if we have, eg, *a or **a in the parent list?
compile_node(comp, pns->nodes[1]);
EMIT(call_function, 2 + list_len(pns->nodes[1], PN_arglist), 0, false, false);
}
// return its name (the 'C' in class C(...):")
return cscope->simple_name;
}
// returns true if it was a built-in decorator (even if the built-in had an error)
static bool compile_built_in_decorator(compiler_t *comp, int name_len, mp_parse_node_t *name_nodes, uint *emit_options) {
if (MP_PARSE_NODE_LEAF_ARG(name_nodes[0]) != comp->qstr_micropython) {
return false;
}
if (name_len != 2) {
printf("SyntaxError: invalid micropython decorator\n");
return true;
}
qstr attr = MP_PARSE_NODE_LEAF_ARG(name_nodes[1]);
if (attr == comp->qstr_byte_code) {
*emit_options = EMIT_OPT_BYTE_CODE;
#if MICROPY_EMIT_NATIVE
} else if (attr == comp->qstr_native) {
*emit_options = EMIT_OPT_NATIVE_PYTHON;
} else if (attr == comp->qstr_viper) {
*emit_options = EMIT_OPT_VIPER;
#endif
#if MICROPY_EMIT_INLINE_THUMB
} else if (attr == comp->qstr_asm_thumb) {
*emit_options = EMIT_OPT_ASM_THUMB;
#endif
} else {
printf("SyntaxError: invalid micropython decorator '%s'\n", qstr_str(attr));
}
return true;
}
void compile_decorated(compiler_t *comp, mp_parse_node_struct_t *pns) {
// get the list of decorators
mp_parse_node_t *nodes;
int n = list_get(&pns->nodes[0], PN_decorators, &nodes);
// inherit emit options for this function/class definition
uint emit_options = comp->scope_cur->emit_options;
// compile each decorator
int num_built_in_decorators = 0;
for (int i = 0; i < n; i++) {
assert(MP_PARSE_NODE_IS_STRUCT_KIND(nodes[i], PN_decorator)); // should be
mp_parse_node_struct_t *pns_decorator = (mp_parse_node_struct_t*)nodes[i];
// nodes[0] contains the decorator function, which is a dotted name
mp_parse_node_t *name_nodes;
int name_len = list_get(&pns_decorator->nodes[0], PN_dotted_name, &name_nodes);
// check for built-in decorators
if (compile_built_in_decorator(comp, name_len, name_nodes, &emit_options)) {
// this was a built-in
num_built_in_decorators += 1;
} else {
// not a built-in, compile normally
// compile the decorator function
compile_node(comp, name_nodes[0]);
for (int i = 1; i < name_len; i++) {
assert(MP_PARSE_NODE_IS_ID(name_nodes[i])); // should be
EMIT(load_attr, MP_PARSE_NODE_LEAF_ARG(name_nodes[i]));
}
// nodes[1] contains arguments to the decorator function, if any
if (!MP_PARSE_NODE_IS_NULL(pns_decorator->nodes[1])) {
// call the decorator function with the arguments in nodes[1]
compile_node(comp, pns_decorator->nodes[1]);
}
}
}
// compile the body (funcdef or classdef) and get its name
mp_parse_node_struct_t *pns_body = (mp_parse_node_struct_t*)pns->nodes[1];
qstr body_name = 0;
if (MP_PARSE_NODE_STRUCT_KIND(pns_body) == PN_funcdef) {
body_name = compile_funcdef_helper(comp, pns_body, emit_options);
} else if (MP_PARSE_NODE_STRUCT_KIND(pns_body) == PN_classdef) {
body_name = compile_classdef_helper(comp, pns_body, emit_options);
} else {
// shouldn't happen
assert(0);
}
// call each decorator
for (int i = 0; i < n - num_built_in_decorators; i++) {
EMIT(call_function, 1, 0, false, false);
}
// store func/class object into name
EMIT(store_id, body_name);
}
void compile_funcdef(compiler_t *comp, mp_parse_node_struct_t *pns) {
qstr fname = compile_funcdef_helper(comp, pns, comp->scope_cur->emit_options);
// store function object into function name
EMIT(store_id, fname);
}
void c_del_stmt(compiler_t *comp, mp_parse_node_t pn) {
if (MP_PARSE_NODE_IS_ID(pn)) {
EMIT(delete_id, MP_PARSE_NODE_LEAF_ARG(pn));
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pn, PN_power)) {
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;