runtime.c 63.3 KB
Newer Older
1
2
// in principle, rt_xxx functions are called only by vm/native/viper and make assumptions about args
// py_xxx functions are safer and can be called by anyone
3
// note that rt_assign_xxx are called only from emit*, and maybe we can rename them to reflect this
4

Damien's avatar
Damien committed
5
6
7
8
9
10
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>

11
#include "nlr.h"
Damien's avatar
Damien committed
12
#include "misc.h"
13
#include "mpyconfig.h"
Damien's avatar
Damien committed
14
#include "runtime.h"
15
#include "bc.h"
Damien's avatar
Damien committed
16

Damien's avatar
Damien committed
17
18
19
20
21
#if MICROPY_ENABLE_FLOAT
// for sqrt
#include <math.h>
#endif

22
#if 0 // print debugging info
23
24
#define DEBUG_PRINT (1)
#define WRITE_NATIVE (1)
25
26
27
#define DEBUG_printf(args...) printf(args)
#define DEBUG_OP_printf(args...) printf(args)
#else // don't print debugging info
28
#define DEBUG_printf(args...) (void)0
Damien's avatar
Damien committed
29
#define DEBUG_OP_printf(args...) (void)0
30
#endif
Damien's avatar
Damien committed
31
32
33
34
35
36
37
38

typedef machine_int_t py_small_int_t;

#define IS_O(o, k) (((((py_small_int_t)(o)) & 1) == 0) && (((py_obj_base_t*)(o))->kind == (k)))
#define IS_SMALL_INT(o) (((py_small_int_t)(o)) & 1)
#define FROM_SMALL_INT(o) (((py_small_int_t)(o)) >> 1)
#define TO_SMALL_INT(o) ((py_obj_t)(((o) << 1) | 1))

39
#if MICROPY_ENABLE_FLOAT
Damien's avatar
Damien committed
40
typedef machine_float_t py_float_t;
Damien's avatar
Damien committed
41
42
43
44
45
#endif

typedef enum {
    O_CONST,
    O_STR,
46
#if MICROPY_ENABLE_FLOAT
Damien's avatar
Damien committed
47
    O_FLOAT,
Damien's avatar
Damien committed
48
    O_COMPLEX,
Damien's avatar
Damien committed
49
#endif
50
    O_EXCEPTION_0,
51
    O_EXCEPTION_N,
52
53
    O_RANGE,
    O_RANGE_IT,
Damien's avatar
Damien committed
54
55
56
57
58
    O_FUN_0,
    O_FUN_1,
    O_FUN_2,
    O_FUN_N,
    O_FUN_BC,
59
    O_FUN_ASM,
60
61
    O_GEN_WRAP,
    O_GEN_INSTANCE,
Damien's avatar
Damien committed
62
    O_BOUND_METH,
63
    O_TUPLE,
Damien's avatar
Damien committed
64
    O_LIST,
65
66
    O_TUPLE_IT,
    O_LIST_IT,
Damien's avatar
Damien committed
67
68
69
    O_SET,
    O_MAP,
    O_CLASS,
70
    O_OBJ,
Damien's avatar
Damien committed
71
72
73
74
75
76
77
78
79
80
81
82
83
} py_obj_kind_t;

typedef enum {
    MAP_QSTR,
    MAP_PY_OBJ,
} py_map_kind_t;

typedef struct _py_map_elem_t {
    py_obj_t key;
    py_obj_t value;
} py_map_elem_t;

typedef struct _py_map_t {
84
85
86
87
    struct {
        py_map_kind_t kind : 1;
        machine_uint_t used : (8 * BYTES_PER_WORD - 1);
    };
Damien's avatar
Damien committed
88
89
90
91
    machine_uint_t alloc;
    py_map_elem_t *table;
} py_map_t;

92
93
94
typedef struct _py_obj_base_t py_obj_base_t;

struct _py_obj_base_t {
Damien's avatar
Damien committed
95
96
97
98
    py_obj_kind_t kind;
    union {
        const char *id;
        qstr u_str;
99
#if MICROPY_ENABLE_FLOAT
Damien's avatar
Damien committed
100
101
102
103
104
        py_float_t u_float; // for O_FLOAT
        struct { // for O_COMPLEX
            py_float_t real;
            py_float_t imag;
        } u_complex;
Damien's avatar
Damien committed
105
#endif
106
107
108
        struct { // for O_EXCEPTION_0
            qstr id;
        } u_exc0;
109
110
        struct { // for O_EXCEPTION_N
            // TODO make generic object or something
111
            qstr id;
112
113
114
            int n_args;
            const void **args;
        } u_exc_n;
115
116
117
118
119
120
121
122
123
124
125
126
        struct { // for O_RANGE
            // TODO make generic object or something
            machine_int_t start;
            machine_int_t stop;
            machine_int_t step;
        } u_range;
        struct { // for O_RANGE_IT
            // TODO make generic object or something
            machine_int_t cur;
            machine_int_t stop;
            machine_int_t step;
        } u_range_it;
Damien's avatar
Damien committed
127
128
        struct { // for O_FUN_[012N]
            int n_args;
129
            void *fun;
Damien's avatar
Damien committed
130
131
        } u_fun;
        struct { // for O_FUN_BC
132
            int n_args;
Damien's avatar
Damien committed
133
134
135
            byte *code;
            uint len;
        } u_fun_bc;
136
137
138
139
        struct { // for O_FUN_ASM
            int n_args;
            void *fun;
        } u_fun_asm;
140
141
142
143
144
145
146
147
148
        struct { // for O_GEN_WRAP
            int n_state;
            py_obj_base_t *fun;
        } u_gen_wrap;
        struct { // for O_GEN_INSTANCE
            py_obj_t *state;
            const byte *ip;
            py_obj_t *sp;
        } u_gen_instance;
Damien's avatar
Damien committed
149
150
151
152
        struct { // for O_BOUND_METH
            py_obj_t meth;
            py_obj_t self;
        } u_bound_meth;
153
        struct { // for O_TUPLE, O_LIST
154
155
            machine_uint_t alloc;
            machine_uint_t len;
Damien's avatar
Damien committed
156
            py_obj_t *items;
157
158
159
        } u_tuple_list;
        struct { // for O_TUPLE_IT, O_LIST_IT
            py_obj_base_t *obj;
160
            machine_uint_t cur;
161
        } u_tuple_list_it;
Damien's avatar
Damien committed
162
        struct { // for O_SET
163
164
            machine_uint_t alloc;
            machine_uint_t used;
Damien's avatar
Damien committed
165
166
167
168
            py_obj_t *table;
        } u_set;
        py_map_t u_map; // for O_MAP
        struct { // for O_CLASS
169
            py_map_t *locals;
Damien's avatar
Damien committed
170
        } u_class;
171
172
173
174
        struct { // for O_OBJ
            py_obj_base_t *class; // points to a O_CLASS object
            py_map_t *members;
        } u_obj;
Damien's avatar
Damien committed
175
    };
176
};
Damien's avatar
Damien committed
177

178
179
180
181
182
183
184
185
186
187
188
static qstr q_append;
static qstr q_join;
static qstr q_print;
static qstr q_len;
static qstr q___build_class__;
static qstr q___next__;
static qstr q_AttributeError;
static qstr q_IndexError;
static qstr q_KeyError;
static qstr q_NameError;
static qstr q_TypeError;
Damien's avatar
Damien committed
189
static qstr q_SyntaxError;
190

Damien's avatar
Damien committed
191
192
193
py_obj_t py_const_none;
py_obj_t py_const_false;
py_obj_t py_const_true;
194
py_obj_t py_const_stop_iteration;
Damien's avatar
Damien committed
195

196
// locals and globals need to be pointers because they can be the same in outer module scope
197
198
199
static py_map_t *map_locals;
static py_map_t *map_globals;
static py_map_t map_builtins;
Damien's avatar
Damien committed
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217

// approximatelly doubling primes; made with Mathematica command: Table[Prime[Floor[(1.7)^n]], {n, 3, 24}]
static int doubling_primes[] = {7, 19, 43, 89, 179, 347, 647, 1229, 2297, 4243, 7829, 14347, 26017, 47149, 84947, 152443, 273253, 488399, 869927, 1547173, 2745121, 4861607};

int get_doubling_prime_greater_or_equal_to(int x) {
    for (int i = 0; i < sizeof(doubling_primes) / sizeof(int); i++) {
        if (doubling_primes[i] >= x) {
            return doubling_primes[i];
        }
    }
    // ran out of primes in the table!
    // return something sensible, at least make it odd
    return x | 1;
}

void py_map_init(py_map_t *map, py_map_kind_t kind, int n) {
    map->kind = kind;
    map->used = 0;
218
    map->alloc = get_doubling_prime_greater_or_equal_to(n + 1);
Damien's avatar
Damien committed
219
    map->table = m_new0(py_map_elem_t, map->alloc);
Damien's avatar
Damien committed
220
221
222
223
224
225
226
227
}

py_map_t *py_map_new(py_map_kind_t kind, int n) {
    py_map_t *map = m_new(py_map_t, 1);
    py_map_init(map, kind, n);
    return map;
}

Damien's avatar
Damien committed
228
229
230
231
232
233
machine_int_t py_obj_hash(py_obj_t o_in) {
    if (o_in == py_const_false) {
        return 0; // needs to hash to same as the integer 0, since False==0
    } else if (o_in == py_const_true) {
        return 1; // needs to hash to same as the integer 1, since True==1
    } else if (IS_SMALL_INT(o_in)) {
Damien's avatar
Damien committed
234
        return FROM_SMALL_INT(o_in);
Damien's avatar
Damien committed
235
236
    } else if (IS_O(o_in, O_CONST)) {
        return (machine_int_t)o_in;
Damien's avatar
Damien committed
237
238
239
240
241
242
243
244
    } else if (IS_O(o_in, O_STR)) {
        return ((py_obj_base_t*)o_in)->u_str;
    } else {
        assert(0);
        return 0;
    }
}

Damien's avatar
Damien committed
245
246
247
248
249
250
// this function implements the '==' operator (and so the inverse of '!=')
// from the python language reference:
// "The objects need not have the same type. If both are numbers, they are converted
// to a common type. Otherwise, the == and != operators always consider objects of
// different types to be unequal."
// note also that False==0 and True==1 are true expressions
Damien's avatar
Damien committed
251
252
253
bool py_obj_equal(py_obj_t o1, py_obj_t o2) {
    if (o1 == o2) {
        return true;
Damien's avatar
Damien committed
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
    } else if (IS_SMALL_INT(o1) || IS_SMALL_INT(o2)) {
        if (IS_SMALL_INT(o1) && IS_SMALL_INT(o2)) {
            return false;
        } else {
            if (IS_SMALL_INT(o2)) {
                py_obj_t temp = o1; o1 = o2; o2 = temp;
            }
            // o1 is the SMALL_INT, o2 is not
            py_small_int_t val = FROM_SMALL_INT(o1);
            if (o2 == py_const_false) {
                return val == 0;
            } else if (o2 == py_const_true) {
                return val == 1;
            } else {
                return false;
            }
        }
Damien's avatar
Damien committed
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
    } else if (IS_O(o1, O_STR) && IS_O(o2, O_STR)) {
        return ((py_obj_base_t*)o1)->u_str == ((py_obj_base_t*)o2)->u_str;
    } else {
        assert(0);
        return false;
    }
}

py_map_elem_t* py_map_lookup_helper(py_map_t *map, py_obj_t index, bool add_if_not_found) {
    bool is_map_py_obj = (map->kind == MAP_PY_OBJ);
    machine_uint_t hash;
    if (is_map_py_obj) {
        hash = py_obj_hash(index);
    } else {
        hash = (machine_uint_t)index;
    }
    uint pos = hash % map->alloc;
    for (;;) {
        py_map_elem_t *elem = &map->table[pos];
        if (elem->key == NULL) {
            // not in table
            if (add_if_not_found) {
                if (map->used + 1 >= map->alloc) {
                    // not enough room in table, rehash it
                    int old_alloc = map->alloc;
                    py_map_elem_t *old_table = map->table;
                    map->alloc = get_doubling_prime_greater_or_equal_to(map->alloc + 1);
                    map->used = 0;
Damien's avatar
Damien committed
299
                    map->table = m_new0(py_map_elem_t, map->alloc);
Damien's avatar
Damien committed
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
                    for (int i = 0; i < old_alloc; i++) {
                        if (old_table[i].key != NULL) {
                            py_map_lookup_helper(map, old_table[i].key, true)->value = old_table[i].value;
                        }
                    }
                    m_free(old_table);
                    // restart the search for the new element
                    pos = hash % map->alloc;
                } else {
                    map->used += 1;
                    elem->key = index;
                    return elem;
                }
            } else {
                return NULL;
            }
        } else if (elem->key == index || (is_map_py_obj && py_obj_equal(elem->key, index))) {
            // found it
Damien's avatar
Damien committed
318
            /* it seems CPython does not replace the index; try x={True:'true'};x[1]='one';x
Damien's avatar
Damien committed
319
320
321
            if (add_if_not_found) {
                elem->key = index;
            }
Damien's avatar
Damien committed
322
            */
Damien's avatar
Damien committed
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
            return elem;
        } else {
            // not yet found, keep searching in this table
            pos = (pos + 1) % map->alloc;
        }
    }
}

py_map_elem_t* py_qstr_map_lookup(py_map_t *map, qstr index, bool add_if_not_found) {
    py_obj_t o = (py_obj_t)(machine_uint_t)index;
    return py_map_lookup_helper(map, o, add_if_not_found);
}

py_map_elem_t* py_map_lookup(py_obj_t o, py_obj_t index, bool add_if_not_found) {
    assert(IS_O(o, O_MAP));
    return py_map_lookup_helper(&((py_obj_base_t *)o)->u_map, index, add_if_not_found);
}

static bool fit_small_int(py_small_int_t o) {
    return true;
}

345
py_obj_t py_obj_new_int(machine_int_t value) {
Damien's avatar
Damien committed
346
347
348
    return TO_SMALL_INT(value);
}

Damien's avatar
Damien committed
349
350
351
352
353
354
355
356
357
358
359
360
361
362
py_obj_t py_obj_new_const(const char *id) {
    py_obj_base_t *o = m_new(py_obj_base_t, 1);
    o->kind = O_CONST;
    o->id = id;
    return (py_obj_t)o;
}

py_obj_t py_obj_new_str(qstr qstr) {
    py_obj_base_t *o = m_new(py_obj_base_t, 1);
    o->kind = O_STR;
    o->u_str = qstr;
    return (py_obj_t)o;
}

363
#if MICROPY_ENABLE_FLOAT
Damien's avatar
Damien committed
364
py_obj_t py_obj_new_float(py_float_t val) {
Damien's avatar
Damien committed
365
366
    py_obj_base_t *o = m_new(py_obj_base_t, 1);
    o->kind = O_FLOAT;
Damien's avatar
Damien committed
367
368
369
370
371
372
373
374
375
    o->u_float = val;
    return (py_obj_t)o;
}

py_obj_t py_obj_new_complex(py_float_t real, py_float_t imag) {
    py_obj_base_t *o = m_new(py_obj_base_t, 1);
    o->kind = O_COMPLEX;
    o->u_complex.real = real;
    o->u_complex.imag = imag;
Damien's avatar
Damien committed
376
377
378
379
    return (py_obj_t)o;
}
#endif

380
381
382
383
384
385
386
387
388
py_obj_t py_obj_new_exception_0(qstr id) {
    py_obj_base_t *o = m_new(py_obj_base_t, 1);
    o->kind = O_EXCEPTION_0;
    o->u_exc0.id = id;
    return (py_obj_t)o;
}

py_obj_t py_obj_new_exception_2(qstr id, const char *fmt, const char *s1, const char *s2) {
    py_obj_base_t *o = m_new(py_obj_base_t, 1);
389
390
391
392
393
394
395
    o->kind = O_EXCEPTION_N;
    o->u_exc_n.id = id;
    o->u_exc_n.n_args = 3;
    o->u_exc_n.args = m_new(const void*, 3);
    o->u_exc_n.args[0] = fmt;
    o->u_exc_n.args[1] = s1;
    o->u_exc_n.args[2] = s2;
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
    return (py_obj_t)o;
}

// range is a class and instances are immutable sequence objects
py_obj_t py_obj_new_range(int start, int stop, int step) {
    py_obj_base_t *o = m_new(py_obj_base_t, 1);
    o->kind = O_RANGE;
    o->u_range.start = start;
    o->u_range.stop = stop;
    o->u_range.step = step;
    return o;
}

py_obj_t py_obj_new_range_iterator(int cur, int stop, int step) {
    py_obj_base_t *o = m_new(py_obj_base_t, 1);
    o->kind = O_RANGE_IT;
    o->u_range_it.cur = cur;
    o->u_range_it.stop = stop;
    o->u_range_it.step = step;
    return o;
}

418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
py_obj_t py_obj_new_tuple_iterator(py_obj_base_t *tuple, int cur) {
    py_obj_base_t *o = m_new(py_obj_base_t, 1);
    o->kind = O_TUPLE_IT;
    o->u_tuple_list_it.obj = tuple;
    o->u_tuple_list_it.cur = cur;
    return o;
}

py_obj_t py_obj_new_list_iterator(py_obj_base_t *list, int cur) {
    py_obj_base_t *o = m_new(py_obj_base_t, 1);
    o->kind = O_LIST_IT;
    o->u_tuple_list_it.obj = list;
    o->u_tuple_list_it.cur = cur;
    return o;
}

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
py_obj_t rt_str_join(py_obj_t self_in, py_obj_t arg) {
    assert(IS_O(self_in, O_STR));
    py_obj_base_t *self = self_in;
    int required_len = strlen(qstr_str(self->u_str));

    // process arg, count required chars
    if (!IS_O(arg, O_TUPLE) && !IS_O(arg, O_LIST)) {
        goto bad_arg;
    }
    py_obj_base_t *tuple_list = arg;
    for (int i = 0; i < tuple_list->u_tuple_list.len; i++) {
        if (!IS_O(tuple_list->u_tuple_list.items[i], O_STR)) {
            goto bad_arg;
        }
        required_len += strlen(qstr_str(((py_obj_base_t*)tuple_list->u_tuple_list.items[i])->u_str));
    }

    // make joined string
    char *joined_str = m_new(char, required_len + 1);
    joined_str[0] = 0;
    for (int i = 0; i < tuple_list->u_tuple_list.len; i++) {
        const char *s2 = qstr_str(((py_obj_base_t*)tuple_list->u_tuple_list.items[i])->u_str);
        if (i > 0) {
            strcat(joined_str, qstr_str(self->u_str));
        }
        strcat(joined_str, s2);
    }
    return py_obj_new_str(qstr_from_str_take(joined_str));

bad_arg:
    nlr_jump(py_obj_new_exception_2(q_TypeError, "?str.join expecting a list of str's", NULL, NULL));
}

467
py_obj_t rt_list_append(py_obj_t self_in, py_obj_t arg) {
Damien's avatar
Damien committed
468
469
    assert(IS_O(self_in, O_LIST));
    py_obj_base_t *self = self_in;
470
471
472
    if (self->u_tuple_list.len >= self->u_tuple_list.alloc) {
        self->u_tuple_list.alloc *= 2;
        self->u_tuple_list.items = m_renew(py_obj_t, self->u_tuple_list.items, self->u_tuple_list.alloc);
Damien's avatar
Damien committed
473
    }
474
    self->u_tuple_list.items[self->u_tuple_list.len++] = arg;
Damien's avatar
Damien committed
475
    return py_const_none; // return None, as per CPython
Damien's avatar
Damien committed
476
477
}

478
479
480
481
482
483
484
485
486
py_obj_t rt_gen_instance_next(py_obj_t self_in) {
    py_obj_t ret = rt_iternext(self_in);
    if (ret == py_const_stop_iteration) {
        nlr_jump(py_obj_new_exception_0(qstr_from_str_static("StopIteration")));
    } else {
        return ret;
    }
}

Damien's avatar
Damien committed
487
typedef enum {
488
    PY_CODE_NONE,
Damien's avatar
Damien committed
489
    PY_CODE_BYTE,
490
491
    PY_CODE_NATIVE,
    PY_CODE_INLINE_ASM,
Damien's avatar
Damien committed
492
493
494
495
496
} py_code_kind_t;

typedef struct _py_code_t {
    py_code_kind_t kind;
    int n_args;
497
498
499
    int n_locals;
    int n_stack;
    bool is_generator;
Damien's avatar
Damien committed
500
501
502
503
504
    union {
        struct {
            byte *code;
            uint len;
        } u_byte;
505
506
507
508
        struct {
            py_fun_t fun;
        } u_native;
        struct {
509
            void *fun;
510
        } u_inline_asm;
Damien's avatar
Damien committed
511
512
513
514
515
516
    };
} py_code_t;

static int next_unique_code_id;
static py_code_t *unique_codes;

517
py_obj_t fun_str_join;
Damien's avatar
Damien committed
518
py_obj_t fun_list_append;
519
py_obj_t fun_gen_instance_next;
Damien's avatar
Damien committed
520

Damien's avatar
Damien committed
521
522
523
524
525
526
527
528
py_obj_t py_builtin___repl_print__(py_obj_t o) {
    if (o != py_const_none) {
        py_obj_print(o);
        printf("\n");
    }
    return py_const_none;
}

Damien's avatar
Damien committed
529
530
531
532
533
534
535
536
537
538
539
540
541
542
py_obj_t py_builtin_print(py_obj_t o) {
    if (IS_O(o, O_STR)) {
        // special case, print string raw
        printf("%s\n", qstr_str(((py_obj_base_t*)o)->u_str));
    } else {
        // print the object Python style
        py_obj_print(o);
        printf("\n");
    }
    return py_const_none;
}

py_obj_t py_builtin_len(py_obj_t o_in) {
    py_small_int_t len = 0;
543
    if (IS_O(o_in, O_TUPLE) || IS_O(o_in, O_LIST)) {
Damien's avatar
Damien committed
544
        py_obj_base_t *o = o_in;
545
        len = o->u_tuple_list.len;
Damien's avatar
Damien committed
546
547
548
549
550
551
552
553
554
    } else if (IS_O(o_in, O_MAP)) {
        py_obj_base_t *o = o_in;
        len = o->u_map.used;
    } else {
        assert(0);
    }
    return TO_SMALL_INT(len);
}

Damien's avatar
Damien committed
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
py_obj_t py_builtin_abs(py_obj_t o_in) {
    if (IS_SMALL_INT(o_in)) {
        py_small_int_t val = FROM_SMALL_INT(o_in);
        if (val < 0) {
            val = -val;
        }
        return TO_SMALL_INT(val);
    } else if (IS_O(o_in, O_FLOAT)) {
        py_obj_base_t *o = o_in;
        // TODO check for NaN etc
        if (o->u_float < 0) {
            return py_obj_new_float(-o->u_float);
        } else {
            return o_in;
        }
    } else if (IS_O(o_in, O_COMPLEX)) {
        py_obj_base_t *o = o_in;
        return py_obj_new_float(sqrt(o->u_complex.real*o->u_complex.real + o->u_complex.imag*o->u_complex.imag));
    } else {
        assert(0);
        return py_const_none;
    }
}

579
580
py_obj_t py_builtin___build_class__(py_obj_t o_class_fun, py_obj_t o_class_name) {
    // we differ from CPython: we set the new __locals__ object here
581
    py_map_t *old_locals = map_locals;
582
    py_map_t *class_locals = py_map_new(MAP_QSTR, 0);
583
    map_locals = class_locals;
584
585
586
587
588
589
590
591

    // call the class code
    rt_call_function_1(o_class_fun, (py_obj_t)0xdeadbeef);

    // restore old __locals__ object
    map_locals = old_locals;

    // create and return the new class
Damien's avatar
Damien committed
592
593
    py_obj_base_t *o = m_new(py_obj_base_t, 1);
    o->kind = O_CLASS;
594
    o->u_class.locals = class_locals;
Damien's avatar
Damien committed
595
596
597
    return o;
}

598
py_obj_t py_builtin_range(py_obj_t o_arg) {
Damien's avatar
Damien committed
599
    return py_obj_new_range(0, py_get_int(o_arg), 1);
600
601
}

602
#ifdef WRITE_NATIVE
Damien's avatar
Damien committed
603
FILE *fp_native = NULL;
604
#endif
Damien's avatar
Damien committed
605

606
void rt_init(void) {
Damien's avatar
Damien committed
607
    q_append = qstr_from_str_static("append");
608
    q_join = qstr_from_str_static("join");
Damien's avatar
Damien committed
609
610
611
    q_print = qstr_from_str_static("print");
    q_len = qstr_from_str_static("len");
    q___build_class__ = qstr_from_str_static("__build_class__");
612
    q___next__ = qstr_from_str_static("__next__");
613
    q_AttributeError = qstr_from_str_static("AttributeError");
614
    q_IndexError = qstr_from_str_static("IndexError");
Damien's avatar
Damien committed
615
    q_KeyError = qstr_from_str_static("KeyError");
616
617
    q_NameError = qstr_from_str_static("NameError");
    q_TypeError = qstr_from_str_static("TypeError");
Damien's avatar
Damien committed
618
    q_SyntaxError = qstr_from_str_static("SyntaxError");
Damien's avatar
Damien committed
619
620
621
622

    py_const_none = py_obj_new_const("None");
    py_const_false = py_obj_new_const("False");
    py_const_true = py_obj_new_const("True");
623
    py_const_stop_iteration = py_obj_new_const("StopIteration");
Damien's avatar
Damien committed
624

625
626
627
    // locals = globals for outer module (see Objects/frameobject.c/PyFrame_New())
    map_locals = map_globals = py_map_new(MAP_QSTR, 1);
    py_qstr_map_lookup(map_globals, qstr_from_str_static("__name__"), true)->value = py_obj_new_str(qstr_from_str_static("__main__"));
Damien's avatar
Damien committed
628
629

    py_map_init(&map_builtins, MAP_QSTR, 3);
Damien's avatar
Damien committed
630
    py_qstr_map_lookup(&map_builtins, qstr_from_str_static("__repl_print__"), true)->value = rt_make_function_1(py_builtin___repl_print__);
Damien's avatar
Damien committed
631
632
    py_qstr_map_lookup(&map_builtins, q_print, true)->value = rt_make_function_1(py_builtin_print);
    py_qstr_map_lookup(&map_builtins, q_len, true)->value = rt_make_function_1(py_builtin_len);
Damien's avatar
Damien committed
633
    py_qstr_map_lookup(&map_builtins, qstr_from_str_static("abs"), true)->value = rt_make_function_1(py_builtin_abs);
Damien's avatar
Damien committed
634
    py_qstr_map_lookup(&map_builtins, q___build_class__, true)->value = rt_make_function_2(py_builtin___build_class__);
635
    py_qstr_map_lookup(&map_builtins, qstr_from_str_static("range"), true)->value = rt_make_function_1(py_builtin_range);
Damien's avatar
Damien committed
636

Damien's avatar
Damien committed
637
    next_unique_code_id = 2; // 1 is reserved for the __main__ module scope
Damien's avatar
Damien committed
638
639
    unique_codes = NULL;

640
    fun_str_join = rt_make_function_2(rt_str_join);
641
    fun_list_append = rt_make_function_2(rt_list_append);
642
    fun_gen_instance_next = rt_make_function_1(rt_gen_instance_next);
Damien's avatar
Damien committed
643

644
#ifdef WRITE_NATIVE
Damien's avatar
Damien committed
645
    fp_native = fopen("out-native", "wb");
646
#endif
Damien's avatar
Damien committed
647
648
}

649
void rt_deinit(void) {
650
#ifdef WRITE_NATIVE
Damien's avatar
Damien committed
651
652
653
    if (fp_native != NULL) {
        fclose(fp_native);
    }
654
#endif
Damien's avatar
Damien committed
655
656
}

Damien's avatar
Damien committed
657
658
659
660
661
662
int rt_get_unique_code_id(bool is_main_module) {
    if (is_main_module) {
        return 1;
    } else {
        return next_unique_code_id++;
    }
Damien's avatar
Damien committed
663
664
}

665
static void alloc_unique_codes(void) {
Damien's avatar
Damien committed
666
    if (unique_codes == NULL) {
667
        unique_codes = m_new(py_code_t, next_unique_code_id + 10); // XXX hack until we fix the REPL allocation problem
668
669
670
        for (int i = 0; i < next_unique_code_id; i++) {
            unique_codes[i].kind = PY_CODE_NONE;
        }
Damien's avatar
Damien committed
671
    }
672
673
}

674
void rt_assign_byte_code(int unique_code_id, byte *code, uint len, int n_args, int n_locals, int n_stack, bool is_generator) {
675
676
677
678
679
    alloc_unique_codes();

    assert(unique_code_id < next_unique_code_id);
    unique_codes[unique_code_id].kind = PY_CODE_BYTE;
    unique_codes[unique_code_id].n_args = n_args;
680
681
682
    unique_codes[unique_code_id].n_locals = n_locals;
    unique_codes[unique_code_id].n_stack = n_stack;
    unique_codes[unique_code_id].is_generator = is_generator;
683
684
685
686
687
688
689
690
691
    unique_codes[unique_code_id].u_byte.code = code;
    unique_codes[unique_code_id].u_byte.len = len;

    DEBUG_printf("assign byte code: id=%d code=%p len=%u n_args=%d\n", unique_code_id, code, len, n_args);
}

void rt_assign_native_code(int unique_code_id, py_fun_t fun, uint len, int n_args) {
    alloc_unique_codes();

692
    assert(1 <= unique_code_id && unique_code_id < next_unique_code_id);
Damien's avatar
Damien committed
693
694
    unique_codes[unique_code_id].kind = PY_CODE_NATIVE;
    unique_codes[unique_code_id].n_args = n_args;
695
696
697
    unique_codes[unique_code_id].n_locals = 0;
    unique_codes[unique_code_id].n_stack = 0;
    unique_codes[unique_code_id].is_generator = false;
Damien's avatar
Damien committed
698
699
    unique_codes[unique_code_id].u_native.fun = fun;

700
#ifdef DEBUG_PRINT
Damien's avatar
Damien committed
701
702
703
704
705
706
707
708
709
710
    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");

711
#ifdef WRITE_NATIVE
Damien's avatar
Damien committed
712
713
    if (fp_native != NULL) {
        fwrite(fun_data, len, 1, fp_native);
714
        fflush(fp_native);
Damien's avatar
Damien committed
715
    }
716
717
#endif
#endif
Damien's avatar
Damien committed
718
719
}

720
721
722
723
724
void rt_assign_inline_asm_code(int unique_code_id, py_fun_t 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 = PY_CODE_INLINE_ASM;
Damien's avatar
Damien committed
725
    unique_codes[unique_code_id].n_args = n_args;
726
727
728
    unique_codes[unique_code_id].n_locals = 0;
    unique_codes[unique_code_id].n_stack = 0;
    unique_codes[unique_code_id].is_generator = false;
729
    unique_codes[unique_code_id].u_inline_asm.fun = fun;
Damien's avatar
Damien committed
730

731
#ifdef DEBUG_PRINT
732
733
734
735
736
737
738
739
740
741
    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");

742
#ifdef WRITE_NATIVE
743
744
745
    if (fp_native != NULL) {
        fwrite(fun_data, len, 1, fp_native);
    }
746
747
#endif
#endif
Damien's avatar
Damien committed
748
749
}

750
751
752
753
754
755
756
757
758
759
760
761
bool py_obj_is_callable(py_obj_t o_in) {
    if (IS_SMALL_INT(o_in)) {
        return false;
    } else {
        py_obj_base_t *o = o_in;
        switch (o->kind) {
            case O_FUN_0:
            case O_FUN_1:
            case O_FUN_2:
            case O_FUN_N:
            case O_FUN_BC:
            case O_FUN_ASM:
762
            // what about O_CLASS, and an O_OBJ that has a __call__ method?
763
764
765
766
767
768
769
                return true;
            default:
                return false;
        }
    }
}

Damien's avatar
Damien committed
770
771
772
773
774
775
776
777
778
779
780
781
782
783
const char *py_obj_get_type_str(py_obj_t o_in) {
    if (IS_SMALL_INT(o_in)) {
        return "int";
    } else {
        py_obj_base_t *o = o_in;
        switch (o->kind) {
            case O_CONST:
                if (o == py_const_none) {
                    return "NoneType";
                } else {
                    return "bool";
                }
            case O_STR:
                return "str";
784
#if MICROPY_ENABLE_FLOAT
Damien's avatar
Damien committed
785
786
787
            case O_FLOAT:
                return "float";
#endif
788
789
790
791
792
793
            case O_FUN_0:
            case O_FUN_1:
            case O_FUN_2:
            case O_FUN_N:
            case O_FUN_BC:
                return "function";
794
795
            case O_GEN_INSTANCE:
                return "generator";
796
797
            case O_TUPLE:
                return "tuple";
Damien's avatar
Damien committed
798
799
            case O_LIST:
                return "list";
800
801
802
803
            case O_TUPLE_IT:
                return "tuple_iterator";
            case O_LIST_IT:
                return "list_iterator";
Damien's avatar
Damien committed
804
805
806
807
            case O_SET:
                return "set";
            case O_MAP:
                return "dict";
808
809
810
811
812
813
814
            case O_OBJ:
            {
                py_map_elem_t *qn = py_qstr_map_lookup(o->u_obj.class->u_class.locals, qstr_from_str_static("__qualname__"), false);
                assert(qn != NULL);
                assert(IS_O(qn->value, O_STR));
                return qstr_str(((py_obj_base_t*)qn->value)->u_str);
            }
Damien's avatar
Damien committed
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
            default:
                assert(0);
                return "UnknownType";
        }
    }
}

void py_obj_print(py_obj_t o_in) {
    if (IS_SMALL_INT(o_in)) {
        printf("%d", (int)FROM_SMALL_INT(o_in));
    } else {
        py_obj_base_t *o = o_in;
        switch (o->kind) {
            case O_CONST:
                printf("%s", o->id);
                break;
            case O_STR:
                // TODO need to escape chars etc
                printf("'%s'", qstr_str(o->u_str));
                break;
835
#if MICROPY_ENABLE_FLOAT
Damien's avatar
Damien committed
836
            case O_FLOAT:
Damien's avatar
Damien committed
837
838
839
840
841
842
843
844
                printf("%.8g", o->u_float);
                break;
            case O_COMPLEX:
                if (o->u_complex.real == 0) {
                    printf("%.8gj", o->u_complex.imag);
                } else {
                    printf("(%.8g+%.8gj)", o->u_complex.real, o->u_complex.imag);
                }
Damien's avatar
Damien committed
845
846
                break;
#endif
847
848
849
            case O_EXCEPTION_0:
                printf("%s", qstr_str(o->u_exc0.id));
                break;
850
851
852
            case O_EXCEPTION_N:
                printf("%s: ", qstr_str(o->u_exc_n.id));
                printf(o->u_exc_n.args[0], o->u_exc_n.args[1], o->u_exc_n.args[2]);
853
                break;
854
855
856
            case O_GEN_INSTANCE:
                printf("<generator object 'fun-name' at %p>", o);
                break;
857
858
859
860
861
862
863
864
865
866
867
868
869
            case O_TUPLE:
                printf("(");
                for (int i = 0; i < o->u_tuple_list.len; i++) {
                    if (i > 0) {
                        printf(", ");
                    }
                    py_obj_print(o->u_tuple_list.items[i]);
                }
                if (o->u_tuple_list.len == 1) {
                    printf(",");
                }
                printf(")");
                break;
Damien's avatar
Damien committed
870
871
            case O_LIST:
                printf("[");
872
                for (int i = 0; i < o->u_tuple_list.len; i++) {
Damien's avatar
Damien committed
873
874
875
                    if (i > 0) {
                        printf(", ");
                    }
876
                    py_obj_print(o->u_tuple_list.items[i]);
Damien's avatar
Damien committed
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
                }
                printf("]");
                break;
            case O_SET:
            {
                bool first = true;
                printf("{");
                for (int i = 0; i < o->u_set.alloc; i++) {
                    if (o->u_set.table[i] != NULL) {
                        if (!first) {
                            printf(", ");
                        }
                        first = false;
                        py_obj_print(o->u_set.table[i]);
                    }
                }
                printf("}");
                break;
            }
            case O_MAP:
            {
                bool first = true;
                printf("{");
                for (int i = 0; i < o->u_map.alloc; i++) {
                    if (o->u_map.table[i].key != NULL) {
                        if (!first) {
                            printf(", ");
                        }
                        first = false;
                        py_obj_print(o->u_map.table[i].key);
                        printf(": ");
                        py_obj_print(o->u_map.table[i].value);
                    }
                }
                printf("}");
                break;
            }
            default:
915
                printf("<? %d>", o->kind);
Damien's avatar
Damien committed
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
                assert(0);
        }
    }
}

int rt_is_true(py_obj_t arg) {
    DEBUG_OP_printf("is true %p\n", arg);
    if (IS_SMALL_INT(arg)) {
        if (FROM_SMALL_INT(arg) == 0) {
            return 0;
        } else {
            return 1;
        }
    } else if (arg == py_const_none) {
        return 0;
    } else if (arg == py_const_false) {
        return 0;
    } else if (arg == py_const_true) {
        return 1;
    } else {
        assert(0);
        return 0;
    }
}

941
942
943
944
945
946
947
948
949
950
951
952
953
954
machine_int_t py_get_int(py_obj_t arg) {
    if (arg == py_const_false) {
        return 0;
    } else if (arg == py_const_true) {
        return 1;
    } else if (IS_SMALL_INT(arg)) {
        return FROM_SMALL_INT(arg);
    } else {
        assert(0);
        return 0;
    }
}

machine_float_t py_obj_get_float(py_obj_t arg) {
955
956
957
958
959
    if (arg == py_const_false) {
        return 0;
    } else if (arg == py_const_true) {
        return 1;
    } else if (IS_SMALL_INT(arg)) {
Damien's avatar
Damien committed
960
        return FROM_SMALL_INT(arg);
961
    } else if (IS_O(arg, O_FLOAT)) {
Damien's avatar
Damien committed
962
        return ((py_obj_base_t*)arg)->u_float;
Damien's avatar
Damien committed
963
964
965
966
967
968
    } else {
        assert(0);
        return 0;
    }
}

Damien's avatar
Damien committed
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
void py_obj_get_complex(py_obj_t arg, py_float_t *real, py_float_t *imag) {
    if (arg == py_const_false) {
        *real = 0;
        *imag = 0;
    } else if (arg == py_const_true) {
        *real = 1;
        *imag = 0;
    } else if (IS_SMALL_INT(arg)) {
        *real = FROM_SMALL_INT(arg);
        *imag = 0;
    } else if (IS_O(arg, O_FLOAT)) {
        *real = ((py_obj_base_t*)arg)->u_float;
        *imag = 0;
    } else if (IS_O(arg, O_COMPLEX)) {
        *real = ((py_obj_base_t*)arg)->u_complex.real;
        *imag = ((py_obj_base_t*)arg)->u_complex.imag;
    } else {
        assert(0);
        *real = 0;
        *imag = 0;
    }
}

Damien's avatar
Damien committed
992
993
994
995
996
997
998
999
1000
qstr py_get_qstr(py_obj_t arg) {
    if (IS_O(arg, O_STR)) {
        return ((py_obj_base_t*)arg)->u_str;
    } else {
        assert(0);
        return 0;
    }
}

1001
py_obj_t *py_get_array_fixed_n(py_obj_t o_in, machine_int_t n) {
Damien's avatar
Damien committed
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
    if (IS_O(o_in, O_TUPLE) || IS_O(o_in, O_LIST)) {
        py_obj_base_t *o = o_in;
        if (o->u_tuple_list.len != n) {
            nlr_jump(py_obj_new_exception_2(q_IndexError, "requested length %d but object has length %d", (void*)n, (void*)o->u_tuple_list.len));
        }
        return o->u_tuple_list.items;
    } else {
        nlr_jump(py_obj_new_exception_2(q_TypeError, "object '%s' is not a tuple or list", py_obj_get_type_str(o_in), NULL));
    }
}

Damien's avatar
Damien committed
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
#define PARSE_DEC_IN_INTG (1)
#define PARSE_DEC_IN_FRAC (2)
#define PARSE_DEC_IN_EXP  (3)

py_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;
    py_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(py_obj_new_exception_2(q_SyntaxError, "invalid syntax for number", NULL, NULL));
    }
    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 py_obj_new_complex(0, dec_val);
    } else {
        return py_obj_new_float(dec_val);
    }
#else
    nlr_jump(py_obj_new_exception_2(q_SyntaxError, "decimal numbers not supported", NULL, NULL));
#endif
}

Damien's avatar
Damien committed
1081
1082
1083
1084
1085
1086
1087
py_obj_t rt_load_const_str(qstr qstr) {
    DEBUG_OP_printf("load '%s'\n", qstr_str(qstr));
    return py_obj_new_str(qstr);
}

py_obj_t rt_load_name(qstr qstr) {
    // logic: search locals, globals, builtins
1088
    DEBUG_OP_printf("load name %s\n", qstr_str(qstr));
1089
    py_map_elem_t *elem = py_qstr_map_lookup(map_locals, qstr, false);
Damien's avatar
Damien committed
1090
    if (elem == NULL) {
1091
        elem = py_qstr_map_lookup(map_globals, qstr, false);
Damien's avatar
Damien committed
1092
        if (elem == NULL) {
1093
1094
            elem = py_qstr_map_lookup(&map_builtins, qstr, false);
            if (elem == NULL) {
1095
                nlr_jump(py_obj_new_exception_2(q_NameError, "name '%s' is not defined", qstr_str(qstr), NULL));
1096
            }
Damien's avatar
Damien committed
1097
1098
1099
1100
1101
1102
        }
    }
    return elem->value;
}

py_obj_t rt_load_global(qstr qstr) {
1103
1104
    // logic: search globals, builtins
    DEBUG_OP_printf("load global %s\n", qstr_str(qstr));
1105
    py_map_elem_t *elem = py_qstr_map_lookup(map_globals, qstr, false);
1106
1107
1108
    if (elem == NULL) {
        elem = py_qstr_map_lookup(&map_builtins, qstr, false);
        if (elem == NULL) {
1109
            nlr_jump(py_obj_new_exception_2(q_NameError, "name '%s' is not defined", qstr_str(qstr), NULL));
1110
1111
1112
        }
    }
    return elem->value;
Damien's avatar
Damien committed
1113
1114
}

1115
py_obj_t rt_load_build_class(void) {
Damien's avatar
Damien committed
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
    DEBUG_OP_printf("load_build_class\n");
    py_map_elem_t *elem = py_qstr_map_lookup(&map_builtins, q___build_class__, false);
    if (elem == NULL) {
        printf("name doesn't exist: __build_class__\n");
        assert(0);
    }
    return elem->value;
}

void rt_store_name(qstr qstr, py_obj_t obj) {
1126
    DEBUG_OP_printf("store name %s <- %p\n", qstr_str(qstr), obj);
1127
    py_qstr_map_lookup(map_locals, qstr, true)->value = obj;
1128
1129
1130
1131
}

void rt_store_global(qstr qstr, py_obj_t obj) {
    DEBUG_OP_printf("store global %s <- %p\n", qstr_str(qstr), obj);
1132
    py_qstr_map_lookup(map_globals, qstr, true)->value = obj;
Damien's avatar
Damien committed
1133
1134
1135
}

py_obj_t rt_unary_op(int op, py_obj_t arg) {
Damien's avatar
Damien committed
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
    DEBUG_OP_printf("unary %d %p\n", op, arg);
    if (IS_SMALL_INT(arg)) {
        py_small_int_t val = FROM_SMALL_INT(arg);
        switch (op) {
            case RT_UNARY_OP_NOT: if (val != 0) { return py_const_true;} else { return py_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 TO_SMALL_INT(val);
        }
#if MICROPY_ENABLE_FLOAT
    } else if (IS_O(arg, O_FLOAT)) {
        py_float_t val = py_obj_get_float(arg);
        switch (op) {
            case RT_UNARY_OP_NOT: if (val != 0) { return py_const_true;} else { return py_const_false; }
            case RT_UNARY_OP_POSITIVE: break;
            case RT_UNARY_OP_NEGATIVE: val = -val; break;
            case RT_UNARY_OP_INVERT: nlr_jump(py_obj_new_exception_2(q_TypeError, "bad operand type for unary ~: 'float'", NULL, NULL));
            default: assert(0); val = 0;
        }
        return py_obj_new_float(val);
#endif
    }
Damien's avatar
Damien committed
1162
1163
1164
1165
    assert(0);
    return py_const_none;
}

1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
uint get_index(py_obj_base_t *base, py_obj_t index) {
    // assumes base is O_TUPLE or O_LIST
    // TODO False and True are considered 0 and 1 for indexing purposes
    int len = base->u_tuple_list.len;
    if (IS_SMALL_INT(index)) {
        int i = FROM_SMALL_INT(index);
        if (i < 0) {
            i += len;
        }
        if (i < 0 || i >= len) {
            nlr_jump(py_obj_new_exception_2(q_IndexError, "%s index out of range", py_obj_get_type_str(base), NULL));
        }
        return i;
    } else {
        nlr_jump(py_obj_new_exception_2(q_TypeError, "%s indices must be integers, not %s", py_obj_get_type_str(base), py_obj_get_type_str(index)));
    }
}

Damien's avatar
Damien committed
1184
1185
1186
py_obj_t rt_binary_op(int op, py_obj_t lhs, py_obj_t rhs) {
    DEBUG_OP_printf("binary %d %p %p\n", op, lhs, rhs);
    if (op == RT_BINARY_OP_SUBSCR) {
1187
        if ((IS_O(lhs, O_TUPLE) || IS_O(lhs, O_LIST))) {
Damien's avatar
Damien committed
1188
            // tuple/list load
1189
1190
            uint index = get_index(lhs, rhs);
            return ((py_obj_base_t*)lhs)->u_tuple_list.items[index];
Damien's avatar
Damien committed
1191
1192
1193
1194
1195
1196
1197
1198
        } else if (IS_O(lhs, O_MAP)) {
            // map load
            py_map_elem_t *elem = py_map_lookup(lhs, rhs, false);
            if (elem == NULL) {
                nlr_jump(py_obj_new_exception_2(q_KeyError, "<value>", NULL, NULL));
            } else {
                return elem->value;
            }
Damien's avatar
Damien committed
1199
1200
1201
1202
        } else {
            assert(0);
        }
    } else if (IS_SMALL_INT(lhs) && IS_SMALL_INT(rhs)) {
1203
1204
        py_small_int_t lhs_val = FROM_SMALL_INT(lhs);
        py_small_int_t rhs_val = FROM_SMALL_INT(rhs);
Damien's avatar
Damien committed
1205
        switch (op) {
1206
            case RT_BINARY_OP_OR:
Damien's avatar
Damien committed
1207
            case RT_BINARY_OP_INPLACE_OR: lhs_val |= rhs_val; break;
1208
            case RT_BINARY_OP_XOR:
Damien's avatar
Damien committed
1209
            case RT_BINARY_OP_INPLACE_XOR: lhs_val ^= rhs_val; break;
1210
            case RT_BINARY_OP_AND:
Damien's avatar
Damien committed
1211
            case RT_BINARY_OP_INPLACE_AND: lhs_val &= rhs_val; break;
1212
            case RT_BINARY_OP_LSHIFT:
Damien's avatar
Damien committed
1213
            case RT_BINARY_OP_INPLACE_LSHIFT: lhs_val <<= rhs_val; break;
1214
            case RT_BINARY_OP_RSHIFT:
Damien's avatar
Damien committed
1215
            case RT_BINARY_OP_INPLACE_RSHIFT: lhs_val >>= rhs_val; break;
Damien's avatar
Damien committed
1216
            case RT_BINARY_OP_ADD:
Damien's avatar
Damien committed
1217
            case RT_BINARY_OP_INPLACE_ADD: lhs_val += rhs_val; break;
1218
            case RT_BINARY_OP_SUBTRACT:
Damien's avatar
Damien committed
1219
            case RT_BINARY_OP_INPLACE_SUBTRACT: lhs_val -= rhs_val; break;
1220
            case RT_BINARY_OP_MULTIPLY:
Damien's avatar
Damien committed
1221
            case RT_BINARY_OP_INPLACE_MULTIPLY: lhs_val *= rhs_val; break;
1222
            case RT_BINARY_OP_FLOOR_DIVIDE:
Damien's avatar
Damien committed
1223
            case RT_BINARY_OP_INPLACE_FLOOR_DIVIDE: lhs_val /= rhs_val; break;
1224
#if MICROPY_ENABLE_FLOAT
1225
            case RT_BINARY_OP_TRUE_DIVIDE:
Damien's avatar
Damien committed
1226
            case RT_BINARY_OP_INPLACE_TRUE_DIVIDE: return py_obj_new_float((py_float_t)lhs_val / (py_float_t)rhs_val);
Damien's avatar
Damien committed
1227
#endif
1228
1229
1230
1231
            case RT_BINARY_OP_POWER:
            case RT_BINARY_OP_INPLACE_POWER:
                // TODO
                if (rhs_val == 2) {
Damien's avatar
Damien committed
1232
                    lhs_val = lhs_val * lhs_val;
1233
1234
                    break;
                }
Damien's avatar
Damien committed
1235
            default: printf("%d\n", op); assert(0);
Damien's avatar
Damien committed
1236
        }
Damien's avatar
Damien committed
1237
1238
        if (fit_small_int(lhs_val)) {
            return TO_SMALL_INT(lhs_val);
Damien's avatar
Damien committed
1239
        }
1240
#if MICROPY_ENABLE_FLOAT
Damien's avatar
Damien committed
1241
1242
1243
1244
    } else if (IS_O(lhs, O_COMPLEX) || IS_O(rhs, O_COMPLEX)) {
        py_float_t lhs_real, lhs_imag, rhs_real, rhs_imag;
        py_obj_get_complex(lhs, &lhs_real, &lhs_imag);
        py_obj_get_complex(rhs, &rhs_real, &rhs_imag);
1245
1246
        switch (op) {
            case RT_BINARY_OP_ADD:
Damien's avatar
Damien committed
1247
1248
1249
1250
            case RT_BINARY_OP_INPLACE_ADD:
                lhs_real += rhs_real;
                lhs_imag += rhs_imag;
                break;
1251
            case RT_BINARY_OP_SUBTRACT:
Damien's avatar
Damien committed
1252
1253
1254
1255
            case RT_BINARY_OP_INPLACE_SUBTRACT:
                lhs_real -= rhs_real;
                lhs_imag -= rhs_imag;
                break;
1256
            case RT_BINARY_OP_MULTIPLY:
Damien's avatar
Damien committed
1257
1258
1259
1260
1261
1262
1263
            case RT_BINARY_OP_INPLACE_MULTIPLY:
            {
                py_float_t real = lhs_real * rhs_real - lhs_imag * rhs_imag;
                lhs_imag = lhs_real * rhs_imag + lhs_imag * rhs_real;
                lhs_real = real;
                break;
            }
1264
1265
1266
1267
            /* TODO floor(?) the value
            case RT_BINARY_OP_FLOOR_DIVIDE:
            case RT_BINARY_OP_INPLACE_FLOOR_DIVIDE: val = lhs_val / rhs_val; break;
            */
Damien's avatar
Damien committed
1268
            /* TODO
1269
1270
            case RT_BINARY_OP_TRUE_DIVIDE:
            case RT_BINARY_OP_INPLACE_TRUE_DIVIDE: val = lhs_val / rhs_val; break;
Damien's avatar
Damien committed
1271
1272
            */
            default: printf("%d\n", op); assert(0);
1273
        }
Damien's avatar
Damien committed
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
        return py_obj_new_complex(lhs_real, lhs_imag);
    } else if (IS_O(lhs, O_FLOAT) || IS_O(rhs, O_FLOAT)) {
        py_float_t lhs_val = py_obj_get_float(lhs);
        py_float_t rhs_val = py_obj_get_float(rhs);
        switch (op) {
            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;
            /* TODO floor(?) the value
            case RT_BINARY_OP_FLOOR_DIVIDE:
            case RT_BINARY_OP_INPLACE_FLOOR_DIVIDE: val = lhs_val / rhs_val; break;
            */
            case RT_BINARY_OP_TRUE_DIVIDE:
            case RT_BINARY_OP_INPLACE_TRUE_DIVIDE: lhs_val /= rhs_val; break;
            default: printf("%d\n", op); assert(0);
        }
        return py_obj_new_float(lhs_val);
1294
#endif
Damien's avatar
Damien committed
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
    } else if (IS_O(lhs, O_STR) && IS_O(rhs, O_STR)) {
        const char *lhs_str = qstr_str(((py_obj_base_t*)lhs)->u_str);
        const char *rhs_str = qstr_str(((py_obj_base_t*)rhs)->u_str);
        char *val;
        switch (op) {
            case RT_BINARY_OP_ADD:
            case RT_BINARY_OP_INPLACE_ADD: val = m_new(char, strlen(lhs_str) + strlen(rhs_str) + 1); strcpy(val, lhs_str); strcat(val, rhs_str); break;
            default: printf("%d\n", op); assert(0); val = NULL;
        }
        return py_obj_new_str(qstr_from_str_take(val));
    }
    assert(0);
    return py_const_none;
}

py_obj_t rt_compare_op(int op, py_obj_t lhs, py_obj_t rhs) {
    DEBUG_OP_printf("compare %d %p %p\n", op, lhs, rhs);
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330

    // deal with == and !=
    if (op == RT_COMPARE_OP_EQUAL || op == RT_COMPARE_OP_NOT_EQUAL) {
        if (py_obj_equal(lhs, rhs)) {
            if (op == RT_COMPARE_OP_EQUAL) {
                return py_const_true;
            } else {
                return py_const_false;
            }
        } else {
            if (op == RT_COMPARE_OP_EQUAL) {
                return py_const_false;
            } else {
                return py_const_true;
            }
        }
    }

    // deal with small ints
Damien's avatar
Damien committed
1331
    if (IS_SMALL_INT(lhs) && IS_SMALL_INT(rhs)) {
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
        py_small_int_t lhs_val = FROM_SMALL_INT(lhs);
        py_small_int_t rhs_val = FROM_SMALL_INT(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 py_const_true;
        } else {
            return py_const_false;
        }
    }

#if MICROPY_ENABLE_FLOAT
    // deal with floats
    if (IS_O(lhs, O_FLOAT) || IS_O(rhs, O_FLOAT)) {
Damien's avatar
Damien committed
1352
1353
        py_float_t lhs_val = py_obj_get_float(lhs);
        py_float_t rhs_val = py_obj_get_float(rhs);
Damien's avatar
Damien committed
1354
1355
        int cmp;
        switch (op) {
1356
1357
1358
1359
            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;
Damien's avatar
Damien committed
1360
1361
1362
1363
1364
1365
1366
1367
            default: assert(0); cmp = 0;
        }
        if (cmp) {
            return py_const_true;
        } else {
            return py_const_false;
        }
    }
1368
#endif