emitcpy.c 26.5 KB
Newer Older
Damien's avatar
Damien committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
#include <unistd.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>

#include "misc.h"
#include "lexer.h"
#include "machine.h"
#include "parse.h"
#include "compile.h"
#include "scope.h"
#include "runtime.h"
#include "emit.h"

17
#ifdef EMIT_ENABLE_CPY
Damien's avatar
Damien committed
18

19
struct _emit_t {
Damien's avatar
Damien committed
20
21
22
23
24
25
26
27
    int pass;
    int next_label;
    int byte_code_offset;
    int stack_size;
    bool last_emit_was_return_value;

    scope_t *scope;

28
    uint max_num_labels;
Damien's avatar
Damien committed
29
30
31
    int *label_offsets;
};

32
33
34
35
// forward declarations
static const emit_method_table_t emit_cpy_method_table;
static void emit_cpy_load_const_verbatim_quoted_str(emit_t *emit, qstr qstr, bool bytes);

36
static void emit_cpy_set_native_types(emit_t *emit, bool do_native_types) {
Damien's avatar
Damien committed
37
38
}

39
static void emit_cpy_start_pass(emit_t *emit, pass_kind_t pass, scope_t *scope) {
Damien's avatar
Damien committed
40
41
42
43
44
45
    emit->pass = pass;
    emit->next_label = 1;
    emit->byte_code_offset = 0;
    emit->stack_size = 0;
    emit->last_emit_was_return_value = false;
    emit->scope = scope;
46
47
    if (pass == PASS_2) {
        memset(emit->label_offsets, -1, emit->max_num_labels * sizeof(int));
Damien's avatar
Damien committed
48
49
50
    }
}

51
static void emit_cpy_end_pass(emit_t *emit) {
Damien's avatar
Damien committed
52
53
54
55
56
57
    // check stack is back to zero size
    if (emit->stack_size != 0) {
        printf("ERROR: stack size not back to zero; got %d\n", emit->stack_size);
    }
}

58
static bool emit_cpy_last_emit_was_return_value(emit_t *emit) {
Damien's avatar
Damien committed
59
60
61
    return emit->last_emit_was_return_value;
}

62
static int emit_cpy_get_stack_size(emit_t *emit) {
Damien's avatar
Damien committed
63
64
65
    return emit->stack_size;
}

66
static void emit_cpy_set_stack_size(emit_t *emit, int size) {
Damien's avatar
Damien committed
67
68
69
    emit->stack_size = size;
}

70
71
72
73
74
75
76
77
78
79
80
81
static void emit_cpy_load_id(emit_t *emit, qstr qstr) {
    emit_common_load_id(emit, &emit_cpy_method_table, emit->scope, qstr);
}

static void emit_cpy_store_id(emit_t *emit, qstr qstr) {
    emit_common_store_id(emit, &emit_cpy_method_table, emit->scope, qstr);
}

static void emit_cpy_delete_id(emit_t *emit, qstr qstr) {
    emit_common_delete_id(emit, &emit_cpy_method_table, emit->scope, qstr);
}

82
static void emit_pre(emit_t *emit, int stack_size_delta, int byte_code_size) {
Damien's avatar
Damien committed
83
    emit->stack_size += stack_size_delta;
84
    if (emit->stack_size > emit->scope->stack_size) {
Damien's avatar
Damien committed
85
86
87
88
89
90
91
92
93
94
95
96
97
        emit->scope->stack_size = emit->stack_size;
    }
    emit->last_emit_was_return_value = false;
    if (emit->pass == PASS_3 && byte_code_size > 0) {
        if (emit->byte_code_offset >= 1000) {
            printf("%d ", emit->byte_code_offset);
        } else {
            printf("% 4d ", emit->byte_code_offset);
        }
    }
    emit->byte_code_offset += byte_code_size;
}

98
static void emit_cpy_label_assign(emit_t *emit, int l) {
Damien's avatar
Damien committed
99
    emit_pre(emit, 0, 0);
100
101
102
103
104
105
106
107
108
    assert(l < emit->max_num_labels);
    if (emit->pass == PASS_2) {
        // assign label offset
        assert(emit->label_offsets[l] == -1);
        emit->label_offsets[l] = emit->byte_code_offset;
    } else if (emit->pass == PASS_3) {
        // ensure label offset has not changed from PASS_2 to PASS_3
        assert(emit->label_offsets[l] == emit->byte_code_offset);
        //printf("l%d: (at %d)\n", l, emit->byte_code_offset);
Damien's avatar
Damien committed
109
110
111
    }
}

112
static void emit_cpy_import_name(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
113
114
115
116
117
118
    emit_pre(emit, -1, 3);
    if (emit->pass == PASS_3) {
        printf("IMPORT_NAME %s\n", qstr_str(qstr));
    }
}

119
static void emit_cpy_import_from(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
120
121
122
123
124
125
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("IMPORT_FROM %s\n", qstr_str(qstr));
    }
}

126
static void emit_cpy_import_star(emit_t *emit) {
Damien's avatar
Damien committed
127
128
129
130
131
132
    emit_pre(emit, -1, 1);
    if (emit->pass == PASS_3) {
        printf("IMPORT_STAR\n");
    }
}

133
static void emit_cpy_load_const_tok(emit_t *emit, py_token_kind_t tok) {
Damien's avatar
Damien committed
134
135
136
137
138
139
140
141
142
143
144
145
146
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("LOAD_CONST ");
        switch (tok) {
            case PY_TOKEN_KW_FALSE: printf("False"); break;
            case PY_TOKEN_KW_NONE: printf("None"); break;
            case PY_TOKEN_KW_TRUE: printf("True"); break;
            default: printf("?=%d\n", tok); return; assert(0);
        }
        printf("\n");
    }
}

147
static void emit_cpy_load_const_small_int(emit_t *emit, int arg) {
Damien's avatar
Damien committed
148
149
150
151
152
153
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("LOAD_CONST %d\n", arg);
    }
}

154
static void emit_cpy_load_const_int(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
155
156
157
158
159
160
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("LOAD_CONST %s\n", qstr_str(qstr));
    }
}

161
static void emit_cpy_load_const_dec(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
162
163
164
165
166
167
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("LOAD_CONST %s\n", qstr_str(qstr));
    }
}

168
static void emit_cpy_load_const_id(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
169
170
171
172
173
174
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("LOAD_CONST '%s'\n", qstr_str(qstr));
    }
}

175
static void emit_cpy_load_const_str(emit_t *emit, qstr qstr, bool bytes) {
Damien's avatar
Damien committed
176
177
178
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("LOAD_CONST ");
179
        emit_cpy_load_const_verbatim_quoted_str(emit, qstr, bytes);
Damien's avatar
Damien committed
180
181
182
183
        printf("\n");
    }
}

184
static void emit_cpy_load_const_verbatim_start(emit_t *emit) {
Damien's avatar
Damien committed
185
186
187
188
189
190
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("LOAD_CONST ");
    }
}

191
static void emit_cpy_load_const_verbatim_int(emit_t *emit, int val) {
Damien's avatar
Damien committed
192
193
194
195
196
    if (emit->pass == PASS_3) {
        printf("%d", val);
    }
}

197
static void emit_cpy_load_const_verbatim_str(emit_t *emit, const char *str) {
Damien's avatar
Damien committed
198
199
200
201
202
    if (emit->pass == PASS_3) {
        printf("%s", str);
    }
}

203
static void emit_cpy_load_const_verbatim_strn(emit_t *emit, const char *str, int len) {
Damien's avatar
Damien committed
204
205
206
207
208
    if (emit->pass == PASS_3) {
        printf("%.*s", len, str);
    }
}

209
static void emit_cpy_load_const_verbatim_quoted_str(emit_t *emit, qstr qstr, bool bytes) {
Damien's avatar
Damien committed
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
    // TODO strings should be escaped before we get here
    if (emit->pass == PASS_3) {
        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) {
            printf("b");
        }
        bool quote_single = false;
        if (has_single_quote && !has_double_quote) {
            printf("\"");
        } else {
            quote_single = true;
            printf("'");
        }
        for (int i = 0; i < len; i++) {
            if (str[i] == '\n') {
                printf("\\n");
            } else if (str[i] == '\\' && str[i + 1] == '\'') {
                i += 1;
                if (quote_single) {
                    printf("\\'");
                } else {
                    printf("'");
                }
            } else if (str[i] == '\'' && quote_single) {
                printf("\\'");
            } else {
                printf("%c", str[i]);
            }
        }
        if (has_single_quote && !has_double_quote) {
            printf("\"");
        } else {
            printf("'");
        }
    }
}

257
static void emit_cpy_load_const_verbatim_end(emit_t *emit) {
Damien's avatar
Damien committed
258
259
260
261
262
    if (emit->pass == PASS_3) {
        printf("\n");
    }
}

263
static void emit_cpy_load_name(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
264
265
266
267
268
269
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("LOAD_NAME %s\n", qstr_str(qstr));
    }
}

270
static void emit_cpy_load_global(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
271
272
273
274
275
276
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("LOAD_GLOBAL %s\n", qstr_str(qstr));
    }
}

277
static void emit_cpy_load_fast(emit_t *emit, qstr qstr, int local_num) {
Damien's avatar
Damien committed
278
279
280
281
282
283
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("LOAD_FAST %s\n", qstr_str(qstr));
    }
}

284
static void emit_cpy_load_deref(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
285
286
287
288
289
290
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("LOAD_DEREF %s\n", qstr_str(qstr));
    }
}

291
static void emit_cpy_load_closure(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
292
293
294
295
296
297
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("LOAD_CLOSURE %s\n", qstr_str(qstr));
    }
}

298
static void emit_cpy_load_attr(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
299
300
301
302
303
304
    emit_pre(emit, 0, 3);
    if (emit->pass == PASS_3) {
        printf("LOAD_ATTR %s\n", qstr_str(qstr));
    }
}

305
306
static void emit_cpy_load_method(emit_t *emit, qstr qstr) {
    emit_cpy_load_attr(emit, qstr);
Damien's avatar
Damien committed
307
308
}

309
static void emit_cpy_load_build_class(emit_t *emit) {
Damien's avatar
Damien committed
310
311
312
313
314
315
    emit_pre(emit, 1, 1);
    if (emit->pass == PASS_3) {
        printf("LOAD_BUILD_CLASS\n");
    }
}

316
static void emit_cpy_store_name(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
317
318
319
320
321
322
    emit_pre(emit, -1, 3);
    if (emit->pass == PASS_3) {
        printf("STORE_NAME %s\n", qstr_str(qstr));
    }
}

323
static void emit_cpy_store_global(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
324
325
326
327
328
329
    emit_pre(emit, -1, 3);
    if (emit->pass == PASS_3) {
        printf("STORE_GLOBAL %s\n", qstr_str(qstr));
    }
}

330
static void emit_cpy_store_fast(emit_t *emit, qstr qstr, int local_num) {
Damien's avatar
Damien committed
331
332
333
334
335
336
    emit_pre(emit, -1, 3);
    if (emit->pass == PASS_3) {
        printf("STORE_FAST %s\n", qstr_str(qstr));
    }
}

337
static void emit_cpy_store_deref(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
338
339
340
341
342
343
    emit_pre(emit, -1, 3);
    if (emit->pass == PASS_3) {
        printf("STORE_DEREF %s\n", qstr_str(qstr));
    }
}

344
static void emit_cpy_store_attr(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
345
346
347
348
349
350
    emit_pre(emit, -2, 3);
    if (emit->pass == PASS_3) {
        printf("STORE_ATTR %s\n", qstr_str(qstr));
    }
}

351
static void emit_cpy_store_locals(emit_t *emit) {
Damien's avatar
Damien committed
352
353
354
355
356
357
    emit_pre(emit, -1, 1);
    if (emit->pass == PASS_3) {
        printf("STORE_LOCALS\n");
    }
}

358
static void emit_cpy_store_subscr(emit_t *emit) {
Damien's avatar
Damien committed
359
360
361
362
363
364
    emit_pre(emit, -3, 1);
    if (emit->pass == PASS_3) {
        printf("STORE_SUBSCR\n");
    }
}

365
static void emit_cpy_delete_name(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
366
367
368
369
370
371
    emit_pre(emit, 0, 3);
    if (emit->pass == PASS_3) {
        printf("DELETE_NAME %s\n", qstr_str(qstr));
    }
}

372
static void emit_cpy_delete_global(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
373
374
375
376
377
378
    emit_pre(emit, 0, 3);
    if (emit->pass == PASS_3) {
        printf("DELETE_GLOBAL %s\n", qstr_str(qstr));
    }
}

379
static void emit_cpy_delete_fast(emit_t *emit, qstr qstr, int local_num) {
Damien's avatar
Damien committed
380
381
382
383
384
385
    emit_pre(emit, 0, 3);
    if (emit->pass == PASS_3) {
        printf("DELETE_FAST %s\n", qstr_str(qstr));
    }
}

386
static void emit_cpy_delete_deref(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
387
388
389
390
391
392
    emit_pre(emit, 0, 3);
    if (emit->pass == PASS_3) {
        printf("DELETE_DEREF %s\n", qstr_str(qstr));
    }
}

393
static void emit_cpy_delete_attr(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
394
395
396
397
398
399
    emit_pre(emit, -1, 3);
    if (emit->pass == PASS_3) {
        printf("DELETE_ATTR %s\n", qstr_str(qstr));
    }
}

400
static void emit_cpy_delete_subscr(emit_t *emit) {
Damien's avatar
Damien committed
401
402
403
404
405
406
    emit_pre(emit, -2, 1);
    if (emit->pass == PASS_3) {
        printf("DELETE_SUBSCR\n");
    }
}

407
static void emit_cpy_dup_top(emit_t *emit) {
Damien's avatar
Damien committed
408
409
410
411
412
413
    emit_pre(emit, 1, 1);
    if (emit->pass == PASS_3) {
        printf("DUP_TOP\n");
    }
}

414
static void emit_cpy_dup_top_two(emit_t *emit) {
Damien's avatar
Damien committed
415
416
417
418
419
420
    emit_pre(emit, 2, 1);
    if (emit->pass == PASS_3) {
        printf("DUP_TOP_TWO\n");
    }
}

421
static void emit_cpy_pop_top(emit_t *emit) {
Damien's avatar
Damien committed
422
423
424
425
426
427
    emit_pre(emit, -1, 1);
    if (emit->pass == PASS_3) {
        printf("POP_TOP\n");
    }
}

428
static void emit_cpy_rot_two(emit_t *emit) {
Damien's avatar
Damien committed
429
430
431
432
433
434
    emit_pre(emit, 0, 1);
    if (emit->pass == PASS_3) {
        printf("ROT_TWO\n");
    }
}

435
static void emit_cpy_rot_three(emit_t *emit) {
Damien's avatar
Damien committed
436
437
438
439
440
441
    emit_pre(emit, 0, 1);
    if (emit->pass == PASS_3) {
        printf("ROT_THREE\n");
    }
}

442
static void emit_cpy_jump(emit_t *emit, int label) {
Damien's avatar
Damien committed
443
444
445
446
447
448
449
450
451
452
453
    emit_pre(emit, 0, 3);
    if (emit->pass == PASS_3) {
        int dest = emit->label_offsets[label];
        if (dest < emit->byte_code_offset) {
            printf("JUMP_ABSOLUTE %d\n", emit->label_offsets[label]);
        } else {
            printf("JUMP_FORWARD %d\n", emit->label_offsets[label]);
        }
    }
}

454
static void emit_cpy_pop_jump_if_true(emit_t *emit, int label) {
Damien's avatar
Damien committed
455
456
457
458
459
460
    emit_pre(emit, -1, 3);
    if (emit->pass == PASS_3) {
        printf("POP_JUMP_IF_TRUE %d\n", emit->label_offsets[label]);
    }
}

461
static void emit_cpy_pop_jump_if_false(emit_t *emit, int label) {
Damien's avatar
Damien committed
462
463
464
465
466
467
    emit_pre(emit, -1, 3);
    if (emit->pass == PASS_3) {
        printf("POP_JUMP_IF_FALSE %d\n", emit->label_offsets[label]);
    }
}

468
static void emit_cpy_jump_if_true_or_pop(emit_t *emit, int label) {
Damien's avatar
Damien committed
469
470
471
472
473
474
    emit_pre(emit, -1, 3);
    if (emit->pass == PASS_3) {
        printf("JUMP_IF_TRUE_OR_POP %d\n", emit->label_offsets[label]);
    }
}

475
static void emit_cpy_jump_if_false_or_pop(emit_t *emit, int label) {
Damien's avatar
Damien committed
476
477
478
479
480
481
    emit_pre(emit, -1, 3);
    if (emit->pass == PASS_3) {
        printf("JUMP_IF_FALSE_OR_POP %d\n", emit->label_offsets[label]);
    }
}

482
static void emit_cpy_setup_loop(emit_t *emit, int label) {
Damien's avatar
Damien committed
483
484
485
486
487
488
    emit_pre(emit, 0, 3);
    if (emit->pass == PASS_3) {
        printf("SETUP_LOOP %d\n", emit->label_offsets[label]);
    }
}

489
static void emit_cpy_break_loop(emit_t *emit, int label) {
Damien's avatar
Damien committed
490
491
492
493
494
495
496
    emit_pre(emit, 0, 1);
    if (emit->pass == PASS_3) {
        printf("BREAK_LOOP\n"); // CPython doesn't have label
        //printf("BREAK_LOOP %d\n", emit->label_offsets[label]);
    }
}

497
static void emit_cpy_continue_loop(emit_t *emit, int label) {
Damien's avatar
Damien committed
498
499
500
501
502
503
    emit_pre(emit, 0, 3);
    if (emit->pass == PASS_3) {
        printf("CONTINUE_LOOP %d\n", emit->label_offsets[label]);
    }
}

504
static void emit_cpy_setup_with(emit_t *emit, int label) {
Damien's avatar
Damien committed
505
506
507
508
509
510
    emit_pre(emit, 7, 3);
    if (emit->pass == PASS_3) {
        printf("SETUP_WITH %d\n", emit->label_offsets[label]);
    }
}

511
static void emit_cpy_with_cleanup(emit_t *emit) {
Damien's avatar
Damien committed
512
513
514
515
516
517
    emit_pre(emit, -7, 1);
    if (emit->pass == PASS_3) {
        printf("WITH_CLEANUP\n");
    }
}

518
static void emit_cpy_setup_except(emit_t *emit, int label) {
Damien's avatar
Damien committed
519
520
521
522
523
524
    emit_pre(emit, 6, 3);
    if (emit->pass == PASS_3) {
        printf("SETUP_EXCEPT %d\n", emit->label_offsets[label]);
    }
}

525
static void emit_cpy_setup_finally(emit_t *emit, int label) {
Damien's avatar
Damien committed
526
527
528
529
530
531
    emit_pre(emit, 6, 3);
    if (emit->pass == PASS_3) {
        printf("SETUP_FINALLY %d\n", emit->label_offsets[label]);
    }
}

532
static void emit_cpy_end_finally(emit_t *emit) {
Damien's avatar
Damien committed
533
534
535
536
537
538
    emit_pre(emit, -1, 1);
    if (emit->pass == PASS_3) {
        printf("END_FINALLY\n");
    }
}

539
static void emit_cpy_get_iter(emit_t *emit) {
Damien's avatar
Damien committed
540
541
542
543
544
545
    emit_pre(emit, 0, 1);
    if (emit->pass == PASS_3) {
        printf("GET_ITER\n");
    }
}

546
static void emit_cpy_for_iter(emit_t *emit, int label) {
Damien's avatar
Damien committed
547
548
549
550
551
552
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("FOR_ITER %d\n", emit->label_offsets[label]);
    }
}

553
static void emit_cpy_for_iter_end(emit_t *emit) {
Damien's avatar
Damien committed
554
555
556
    emit_pre(emit, -1, 0);
}

557
static void emit_cpy_pop_block(emit_t *emit) {
Damien's avatar
Damien committed
558
559
560
561
562
563
    emit_pre(emit, 0, 1);
    if (emit->pass == PASS_3) {
        printf("POP_BLOCK\n");
    }
}

564
static void emit_cpy_pop_except(emit_t *emit) {
Damien's avatar
Damien committed
565
566
567
568
569
570
    emit_pre(emit, 0, 1);
    if (emit->pass == PASS_3) {
        printf("POP_EXCEPT\n");
    }
}

571
static void emit_cpy_unary_op(emit_t *emit, rt_unary_op_t op) {
Damien's avatar
Damien committed
572
573
574
575
576
577
578
579
580
581
582
583
    emit_pre(emit, 0, 1);
    if (emit->pass == PASS_3) {
        switch (op) {
            case RT_UNARY_OP_NOT: printf("UNARY_NOT\n"); break;
            case RT_UNARY_OP_POSITIVE: printf("UNARY_POSITIVE\n"); break;
            case RT_UNARY_OP_NEGATIVE: printf("UNARY_NEGATIVE\n"); break;
            case RT_UNARY_OP_INVERT: printf("UNARY_INVERT\n"); break;
            default: assert(0);
        }
    }
}

584
static void emit_cpy_binary_op(emit_t *emit, rt_binary_op_t op) {
Damien's avatar
Damien committed
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
    emit_pre(emit, -1, 1);
    if (emit->pass == PASS_3) {
        switch (op) {
            case RT_BINARY_OP_SUBSCR: printf("BINARY_SUBSCR\n"); break;
            case RT_BINARY_OP_OR: printf("BINARY_OR\n"); break;
            case RT_BINARY_OP_XOR: printf("BINARY_XOR\n"); break;
            case RT_BINARY_OP_AND: printf("BINARY_AND\n"); break;
            case RT_BINARY_OP_LSHIFT: printf("BINARY_LSHIFT\n"); break;
            case RT_BINARY_OP_RSHIFT: printf("BINARY_RSHIFT\n"); break;
            case RT_BINARY_OP_ADD: printf("BINARY_ADD\n"); break;
            case RT_BINARY_OP_SUBTRACT: printf("BINARY_SUBTRACT\n"); break;
            case RT_BINARY_OP_MULTIPLY: printf("BINARY_MULTIPLY\n"); break;
            case RT_BINARY_OP_FLOOR_DIVIDE: printf("BINARY_FLOOR_DIVIDE\n"); break;
            case RT_BINARY_OP_TRUE_DIVIDE: printf("BINARY_TRUE_DIVIDE\n"); break;
            case RT_BINARY_OP_MODULO: printf("BINARY_MODULO\n"); break;
            case RT_BINARY_OP_POWER: printf("BINARY_POWER\n"); break;
            case RT_BINARY_OP_INPLACE_OR: printf("INPLACE_OR\n"); break;
            case RT_BINARY_OP_INPLACE_XOR: printf("INPLACE_XOR\n"); break;
            case RT_BINARY_OP_INPLACE_AND: printf("INPLACE_AND\n"); break;
            case RT_BINARY_OP_INPLACE_LSHIFT: printf("INPLACE_LSHIFT\n"); break;
            case RT_BINARY_OP_INPLACE_RSHIFT: printf("INPLACE_RSHIFT\n"); break;
            case RT_BINARY_OP_INPLACE_ADD: printf("INPLACE_ADD\n"); break;
            case RT_BINARY_OP_INPLACE_SUBTRACT: printf("INPLACE_SUBTRACT\n"); break;
            case RT_BINARY_OP_INPLACE_MULTIPLY: printf("INPLACE_MULTIPLY\n"); break;
            case RT_BINARY_OP_INPLACE_FLOOR_DIVIDE: printf("INPLACE_FLOOR_DIVIDE\n"); break;
            case RT_BINARY_OP_INPLACE_TRUE_DIVIDE: printf("INPLACE_TRUE_DIVIDE\n"); break;
            case RT_BINARY_OP_INPLACE_MODULO: printf("INPLACE_MODULO\n"); break;
            case RT_BINARY_OP_INPLACE_POWER: printf("INPLACE_POWER\n"); break;
            default: assert(0);
        }
    }
}

618
static void emit_cpy_compare_op(emit_t *emit, rt_compare_op_t op) {
Damien's avatar
Damien committed
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
    emit_pre(emit, -1, 3);
    if (emit->pass == PASS_3) {
        switch (op) {
            case RT_COMPARE_OP_LESS: printf("COMPARE_OP <\n"); break;
            case RT_COMPARE_OP_MORE: printf("COMPARE_OP >\n"); break;
            case RT_COMPARE_OP_EQUAL: printf("COMPARE_OP ==\n"); break;
            case RT_COMPARE_OP_LESS_EQUAL: printf("COMPARE_OP <=\n"); break;
            case RT_COMPARE_OP_MORE_EQUAL: printf("COMPARE_OP >=\n"); break;
            case RT_COMPARE_OP_NOT_EQUAL: printf("COMPARE_OP !=\n"); break;
            case RT_COMPARE_OP_IN: printf("COMPARE_OP in\n"); break;
            case RT_COMPARE_OP_NOT_IN: printf("COMPARE_OP not in\n"); break;
            case RT_COMPARE_OP_IS: printf("COMPARE_OP is\n"); break;
            case RT_COMPARE_OP_IS_NOT: printf("COMPARE_OP is not\n"); break;
            case RT_COMPARE_OP_EXCEPTION_MATCH: printf("COMPARE_OP exception match\n"); break;
            default: assert(0);
        }
    }
}

638
static void emit_cpy_build_tuple(emit_t *emit, int n_args) {
Damien's avatar
Damien committed
639
640
641
642
643
644
    emit_pre(emit, 1 - n_args, 3);
    if (emit->pass == PASS_3) {
        printf("BUILD_TUPLE %d\n", n_args);
    }
}

645
static void emit_cpy_build_list(emit_t *emit, int n_args) {
Damien's avatar
Damien committed
646
647
648
649
650
651
    emit_pre(emit, 1 - n_args, 3);
    if (emit->pass == PASS_3) {
        printf("BUILD_LIST %d\n", n_args);
    }
}

652
static void emit_cpy_list_append(emit_t *emit, int list_index) {
Damien's avatar
Damien committed
653
654
655
656
657
658
    emit_pre(emit, -1, 3);
    if (emit->pass == PASS_3) {
        printf("LIST_APPEND %d\n", list_index);
    }
}

659
static void emit_cpy_build_map(emit_t *emit, int n_args) {
Damien's avatar
Damien committed
660
661
662
663
664
665
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("BUILD_MAP %d\n", n_args);
    }
}

666
static void emit_cpy_store_map(emit_t *emit) {
Damien's avatar
Damien committed
667
668
669
670
671
672
    emit_pre(emit, -2, 1);
    if (emit->pass == PASS_3) {
        printf("STORE_MAP\n");
    }
}

673
static void emit_cpy_map_add(emit_t *emit, int map_index) {
Damien's avatar
Damien committed
674
675
676
677
678
679
    emit_pre(emit, -2, 3);
    if (emit->pass == PASS_3) {
        printf("MAP_ADD %d\n", map_index);
    }
}

680
static void emit_cpy_build_set(emit_t *emit, int n_args) {
Damien's avatar
Damien committed
681
682
683
684
685
686
    emit_pre(emit, 1 - n_args, 3);
    if (emit->pass == PASS_3) {
        printf("BUILD_SET %d\n", n_args);
    }
}

687
static void emit_cpy_set_add(emit_t *emit, int set_index) {
Damien's avatar
Damien committed
688
689
690
691
692
693
    emit_pre(emit, -1, 3);
    if (emit->pass == PASS_3) {
        printf("SET_ADD %d\n", set_index);
    }
}

694
static void emit_cpy_build_slice(emit_t *emit, int n_args) {
Damien's avatar
Damien committed
695
696
697
698
699
700
    emit_pre(emit, 1 - n_args, 3);
    if (emit->pass == PASS_3) {
        printf("BUILD_SLICE %d\n", n_args);
    }
}

701
static void emit_cpy_unpack_sequence(emit_t *emit, int n_args) {
Damien's avatar
Damien committed
702
703
704
705
706
707
    emit_pre(emit, -1 + n_args, 3);
    if (emit->pass == PASS_3) {
        printf("UNPACK_SEQUENCE %d\n", n_args);
    }
}

708
static void emit_cpy_unpack_ex(emit_t *emit, int n_left, int n_right) {
Damien's avatar
Damien committed
709
710
711
712
713
714
    emit_pre(emit, -1 + n_left + n_right + 1, 3);
    if (emit->pass == PASS_3) {
        printf("UNPACK_EX %d\n", n_left | (n_right << 8));
    }
}

715
static void emit_cpy_call_function(emit_t *emit, int n_positional, int n_keyword, bool have_star_arg, bool have_dbl_star_arg) {
Damien's avatar
Damien committed
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
    int s = 0;
    if (have_star_arg) {
        s += 1;
    }
    if (have_dbl_star_arg) {
        s += 1;
    }
    emit_pre(emit, -n_positional - 2 * n_keyword - s, 3);
    if (emit->pass == PASS_3) {
        if (have_star_arg) {
            if (have_dbl_star_arg) {
                printf("CALL_FUNCTION_VAR_KW");
            } else {
                printf("CALL_FUNCTION_VAR");
            }
        } else {
            if (have_dbl_star_arg) {
                printf("CALL_FUNCTION_KW");
            } else {
                printf("CALL_FUNCTION");
            }
        }
        printf(" %d, %d\n", n_positional, n_keyword);
    }
}

742
743
static void emit_cpy_call_method(emit_t *emit, int n_positional, int n_keyword, bool have_star_arg, bool have_dbl_star_arg) {
    emit_cpy_call_function(emit, n_positional, n_keyword, have_star_arg, have_dbl_star_arg);
Damien's avatar
Damien committed
744
745
}

746
static void emit_cpy_return_value(emit_t *emit) {
Damien's avatar
Damien committed
747
748
749
750
751
752
753
    emit_pre(emit, -1, 1);
    emit->last_emit_was_return_value = true;
    if (emit->pass == PASS_3) {
        printf("RETURN_VALUE\n");
    }
}

754
static void emit_cpy_raise_varargs(emit_t *emit, int n_args) {
Damien's avatar
Damien committed
755
756
757
758
759
760
    emit_pre(emit, -n_args, 3);
    if (emit->pass == PASS_3) {
        printf("RAISE_VARARGS %d\n", n_args);
    }
}

761
static void load_cpy_const_code_and_name(emit_t *emit, qstr qstr) {
Damien's avatar
Damien committed
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
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("LOAD_CONST code %s\n", qstr_str(qstr));
    }
    // load qualified name
    emit_pre(emit, 1, 3);
    if (emit->pass == PASS_3) {
        printf("LOAD_CONST '");
        // code just to work out the qualname (or whatever it is)
        {
            int depth = 0;
            for (scope_t *s = emit->scope; s->parent != NULL; s = s->parent) {
                depth += 1;
            }
            for (int wanted_depth = depth; wanted_depth >= 0; wanted_depth--) {
                scope_t *s = emit->scope;
                for (int i = 0; i < wanted_depth; i++) {
                    s = s->parent;
                }
                if (s->kind == SCOPE_FUNCTION) {
                    printf("%s.<locals>.", qstr_str(s->simple_name));
                } else if (s->kind == SCOPE_CLASS) {
                    printf("%s.", qstr_str(s->simple_name));
                }
            }
        }
        printf("%s'\n", qstr_str(qstr));
    }
}

792
793
static void emit_cpy_make_function(emit_t *emit, scope_t *scope, int n_dict_params, int n_default_params) {
    load_cpy_const_code_and_name(emit, scope->simple_name);
Damien's avatar
Damien committed
794
795
796
797
798
799
    emit_pre(emit, -1 - n_default_params - 2 * n_dict_params, 3);
    if (emit->pass == PASS_3) {
        printf("MAKE_FUNCTION %d\n", (n_dict_params << 8) | n_default_params);
    }
}

800
801
static void emit_cpy_make_closure(emit_t *emit, scope_t *scope, int n_dict_params, int n_default_params) {
    load_cpy_const_code_and_name(emit, scope->simple_name);
Damien's avatar
Damien committed
802
803
804
805
806
807
    emit_pre(emit, -2 - n_default_params - 2 * n_dict_params, 3);
    if (emit->pass == PASS_3) {
        printf("MAKE_CLOSURE %d\n", (n_dict_params << 8) | n_default_params);
    }
}

808
static void emit_cpy_yield_value(emit_t *emit) {
Damien's avatar
Damien committed
809
810
811
812
813
814
815
816
817
    emit_pre(emit, 0, 1);
    if (emit->pass == PASS_2) {
        emit->scope->flags |= SCOPE_FLAG_GENERATOR;
    }
    if (emit->pass == PASS_3) {
        printf("YIELD_VALUE\n");
    }
}

818
static void emit_cpy_yield_from(emit_t *emit) {
Damien's avatar
Damien committed
819
820
821
822
823
824
825
826
827
    emit_pre(emit, -1, 1);
    if (emit->pass == PASS_2) {
        emit->scope->flags |= SCOPE_FLAG_GENERATOR;
    }
    if (emit->pass == PASS_3) {
        printf("YIELD_FROM\n");
    }
}

828
829
830
831
832
833
834
835
static const emit_method_table_t emit_cpy_method_table = {
    emit_cpy_set_native_types,
    emit_cpy_start_pass,
    emit_cpy_end_pass,
    emit_cpy_last_emit_was_return_value,
    emit_cpy_get_stack_size,
    emit_cpy_set_stack_size,

836
837
838
839
    emit_cpy_load_id,
    emit_cpy_store_id,
    emit_cpy_delete_id,

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
    emit_cpy_label_assign,
    emit_cpy_import_name,
    emit_cpy_import_from,
    emit_cpy_import_star,
    emit_cpy_load_const_tok,
    emit_cpy_load_const_small_int,
    emit_cpy_load_const_int,
    emit_cpy_load_const_dec,
    emit_cpy_load_const_id,
    emit_cpy_load_const_str,
    emit_cpy_load_const_verbatim_start,
    emit_cpy_load_const_verbatim_int,
    emit_cpy_load_const_verbatim_str,
    emit_cpy_load_const_verbatim_strn,
    emit_cpy_load_const_verbatim_quoted_str,
    emit_cpy_load_const_verbatim_end,
    emit_cpy_load_fast,
    emit_cpy_load_name,
    emit_cpy_load_global,
    emit_cpy_load_deref,
    emit_cpy_load_closure,
    emit_cpy_load_attr,
    emit_cpy_load_method,
    emit_cpy_load_build_class,
    emit_cpy_store_fast,
    emit_cpy_store_name,
    emit_cpy_store_global,
    emit_cpy_store_deref,
    emit_cpy_store_attr,
    emit_cpy_store_locals,
    emit_cpy_store_subscr,
    emit_cpy_delete_fast,
    emit_cpy_delete_name,
    emit_cpy_delete_global,
    emit_cpy_delete_deref,
    emit_cpy_delete_attr,
    emit_cpy_delete_subscr,
    emit_cpy_dup_top,
    emit_cpy_dup_top_two,
    emit_cpy_pop_top,
    emit_cpy_rot_two,
    emit_cpy_rot_three,
    emit_cpy_jump,
    emit_cpy_pop_jump_if_true,
    emit_cpy_pop_jump_if_false,
    emit_cpy_jump_if_true_or_pop,
    emit_cpy_jump_if_false_or_pop,
    emit_cpy_setup_loop,
    emit_cpy_break_loop,
    emit_cpy_continue_loop,
    emit_cpy_setup_with,
    emit_cpy_with_cleanup,
    emit_cpy_setup_except,
    emit_cpy_setup_finally,
    emit_cpy_end_finally,
    emit_cpy_get_iter,
    emit_cpy_for_iter,
    emit_cpy_for_iter_end,
    emit_cpy_pop_block,
    emit_cpy_pop_except,
    emit_cpy_unary_op,
    emit_cpy_binary_op,
    emit_cpy_compare_op,
    emit_cpy_build_tuple,
    emit_cpy_build_list,
    emit_cpy_list_append,
    emit_cpy_build_map,
    emit_cpy_store_map,
    emit_cpy_map_add,
    emit_cpy_build_set,
    emit_cpy_set_add,
    emit_cpy_build_slice,
    emit_cpy_unpack_sequence,
    emit_cpy_unpack_ex,
    emit_cpy_make_function,
    emit_cpy_make_closure,
    emit_cpy_call_function,
    emit_cpy_call_method,
    emit_cpy_return_value,
    emit_cpy_raise_varargs,
    emit_cpy_yield_value,
    emit_cpy_yield_from,
};

924
void emit_cpython_new(emit_t **emit_out, const emit_method_table_t **emit_method_table_out, uint max_num_labels) {
925
    emit_t *emit = m_new(emit_t, 1);
926
927
    emit->max_num_labels = max_num_labels;
    emit->label_offsets = m_new(int, max_num_labels);
928
929
930
931
932
933

    *emit_out = emit;
    *emit_method_table_out = &emit_cpy_method_table;
}

#endif // EMIT_ENABLE_CPY