loalang 0.1.20

Loa is a general-purpose, purely immutable, object-oriented programming language.
Documentation
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
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
use crate::vm::*;
use fraction::{BigFraction, BigUint};
use num_bigint::BigInt;
use std::sync::Arc;

pub trait Runtime
where
    Self: Sized,
{
    fn print_panic(message: String, call_stack: CallStack);

    #[inline]
    fn call(vm: &mut VM, method: NativeMethod) -> VMResult<()> {
        match method {
            NativeMethod::Number_plus => Self::number_plus(vm),
            NativeMethod::Number_minus => Self::number_minus(vm),
            NativeMethod::Object_eq => Self::object_eq(vm),
            NativeMethod::Object_asString => Self::object_asString(vm),
        }
    }

    fn object_eq(vm: &mut VM) -> VMResult<()> {
        let receiver = unwrap!(vm, vm.pop_eval::<Self>());
        let operand = unwrap!(vm, vm.pop_eval::<Self>());

        vm.push(Object::box_bool(receiver == operand));

        VMResult::Ok(())
    }

    #[allow(non_snake_case)]
    fn object_asString(vm: &mut VM) -> VMResult<()> {
        let receiver = unwrap!(vm, vm.pop_eval::<Self>());

        vm.push(Object::box_string(format!("{}", receiver)));

        VMResult::Ok(())
    }

    fn number_plus(vm: &mut VM) -> VMResult<()> {
        let receiver = unwrap!(vm, vm.pop_eval::<Self>());
        let operand = unwrap!(vm, vm.pop_eval::<Self>());

        match (&receiver.const_value, &operand.const_value) {
            (ConstValue::Lazy(_, _, _), _) | (_, ConstValue::Lazy(_, _, _)) => {
                return vm.panic("adding lazy".into())
            }

            (ConstValue::InstanceVariables(_), _)
            | (_, ConstValue::InstanceVariables(_))
            | (ConstValue::Nothing, _)
            | (_, ConstValue::Nothing)
            | (ConstValue::String(_), _)
            | (_, ConstValue::String(_))
            | (ConstValue::Character(_), _)
            | (_, ConstValue::Character(_))
            | (ConstValue::Symbol(_), _)
            | (_, ConstValue::Symbol(_)) => return vm.panic("not a number".into()),

            (ConstValue::U8(a), ConstValue::U8(b)) => vm.push(add_u8(*a, *b)),
            (ConstValue::U8(a), ConstValue::U16(b)) => vm.push(add_u16(*a as u16, *b)),
            (ConstValue::U8(a), ConstValue::U32(b)) => vm.push(add_u32(*a as u32, *b)),
            (ConstValue::U8(a), ConstValue::U64(b)) => vm.push(add_u64(*a as u64, *b)),
            (ConstValue::U8(a), ConstValue::U128(b)) => vm.push(add_u128(*a as u128, *b)),
            (ConstValue::U8(a), ConstValue::UBig(b)) => vm.push(add_ubig(&BigUint::from(*a), b)),

            (ConstValue::U16(a), ConstValue::U8(b)) => vm.push(add_u16(*a, *b as u16)),
            (ConstValue::U16(a), ConstValue::U16(b)) => vm.push(add_u16(*a, *b)),
            (ConstValue::U16(a), ConstValue::U32(b)) => vm.push(add_u32(*a as u32, *b)),
            (ConstValue::U16(a), ConstValue::U64(b)) => vm.push(add_u64(*a as u64, *b)),
            (ConstValue::U16(a), ConstValue::U128(b)) => vm.push(add_u128(*a as u128, *b)),
            (ConstValue::U16(a), ConstValue::UBig(b)) => vm.push(add_ubig(&BigUint::from(*a), b)),

            (ConstValue::U32(a), ConstValue::U8(b)) => vm.push(add_u32(*a, *b as u32)),
            (ConstValue::U32(a), ConstValue::U16(b)) => vm.push(add_u32(*a, *b as u32)),
            (ConstValue::U32(a), ConstValue::U32(b)) => vm.push(add_u32(*a, *b)),
            (ConstValue::U32(a), ConstValue::U64(b)) => vm.push(add_u64(*a as u64, *b)),
            (ConstValue::U32(a), ConstValue::U128(b)) => vm.push(add_u128(*a as u128, *b)),
            (ConstValue::U32(a), ConstValue::UBig(b)) => vm.push(add_ubig(&BigUint::from(*a), b)),

            (ConstValue::U64(a), ConstValue::U8(b)) => vm.push(add_u64(*a, *b as u64)),
            (ConstValue::U64(a), ConstValue::U16(b)) => vm.push(add_u64(*a, *b as u64)),
            (ConstValue::U64(a), ConstValue::U32(b)) => vm.push(add_u64(*a, *b as u64)),
            (ConstValue::U64(a), ConstValue::U64(b)) => vm.push(add_u64(*a, *b)),
            (ConstValue::U64(a), ConstValue::U128(b)) => vm.push(add_u128(*a as u128, *b)),
            (ConstValue::U64(a), ConstValue::UBig(b)) => vm.push(add_ubig(&BigUint::from(*a), b)),

            (ConstValue::U128(a), ConstValue::U8(b)) => vm.push(add_u128(*a, *b as u128)),
            (ConstValue::U128(a), ConstValue::U16(b)) => vm.push(add_u128(*a, *b as u128)),
            (ConstValue::U128(a), ConstValue::U32(b)) => vm.push(add_u128(*a, *b as u128)),
            (ConstValue::U128(a), ConstValue::U64(b)) => vm.push(add_u128(*a, *b as u128)),
            (ConstValue::U128(a), ConstValue::U128(b)) => vm.push(add_u128(*a, *b)),
            (ConstValue::U128(a), ConstValue::UBig(b)) => vm.push(add_ubig(&BigUint::from(*a), b)),

            (ConstValue::UBig(a), ConstValue::U8(b)) => vm.push(add_ubig(a, &BigUint::from(*b))),
            (ConstValue::UBig(a), ConstValue::U16(b)) => vm.push(add_ubig(a, &BigUint::from(*b))),
            (ConstValue::UBig(a), ConstValue::U32(b)) => vm.push(add_ubig(a, &BigUint::from(*b))),
            (ConstValue::UBig(a), ConstValue::U64(b)) => vm.push(add_ubig(a, &BigUint::from(*b))),
            (ConstValue::UBig(a), ConstValue::U128(b)) => vm.push(add_ubig(a, &BigUint::from(*b))),
            (ConstValue::UBig(a), ConstValue::UBig(b)) => vm.push(add_ubig(a, b)),

            (ConstValue::I8(a), ConstValue::I8(b)) => vm.push(add_i8(*a, *b)),
            (ConstValue::I8(a), ConstValue::I16(b)) => vm.push(add_i16(*a as i16, *b)),
            (ConstValue::I8(a), ConstValue::I32(b)) => vm.push(add_i32(*a as i32, *b)),
            (ConstValue::I8(a), ConstValue::I64(b)) => vm.push(add_i64(*a as i64, *b)),
            (ConstValue::I8(a), ConstValue::I128(b)) => vm.push(add_i128(*a as i128, *b)),
            (ConstValue::I8(a), ConstValue::IBig(b)) => vm.push(add_ibig(&BigInt::from(*a), b)),

            (ConstValue::I16(a), ConstValue::I8(b)) => vm.push(add_i16(*a, *b as i16)),
            (ConstValue::I16(a), ConstValue::I16(b)) => vm.push(add_i16(*a, *b)),
            (ConstValue::I16(a), ConstValue::I32(b)) => vm.push(add_i32(*a as i32, *b)),
            (ConstValue::I16(a), ConstValue::I64(b)) => vm.push(add_i64(*a as i64, *b)),
            (ConstValue::I16(a), ConstValue::I128(b)) => vm.push(add_i128(*a as i128, *b)),
            (ConstValue::I16(a), ConstValue::IBig(b)) => vm.push(add_ibig(&BigInt::from(*a), b)),

            (ConstValue::I32(a), ConstValue::I8(b)) => vm.push(add_i32(*a, *b as i32)),
            (ConstValue::I32(a), ConstValue::I16(b)) => vm.push(add_i32(*a, *b as i32)),
            (ConstValue::I32(a), ConstValue::I32(b)) => vm.push(add_i32(*a, *b)),
            (ConstValue::I32(a), ConstValue::I64(b)) => vm.push(add_i64(*a as i64, *b)),
            (ConstValue::I32(a), ConstValue::I128(b)) => vm.push(add_i128(*a as i128, *b)),
            (ConstValue::I32(a), ConstValue::IBig(b)) => vm.push(add_ibig(&BigInt::from(*a), b)),

            (ConstValue::I64(a), ConstValue::I8(b)) => vm.push(add_i64(*a, *b as i64)),
            (ConstValue::I64(a), ConstValue::I16(b)) => vm.push(add_i64(*a, *b as i64)),
            (ConstValue::I64(a), ConstValue::I32(b)) => vm.push(add_i64(*a, *b as i64)),
            (ConstValue::I64(a), ConstValue::I64(b)) => vm.push(add_i64(*a, *b)),
            (ConstValue::I64(a), ConstValue::I128(b)) => vm.push(add_i128(*a as i128, *b)),
            (ConstValue::I64(a), ConstValue::IBig(b)) => vm.push(add_ibig(&BigInt::from(*a), b)),

            (ConstValue::I128(a), ConstValue::I8(b)) => vm.push(add_i128(*a, *b as i128)),
            (ConstValue::I128(a), ConstValue::I16(b)) => vm.push(add_i128(*a, *b as i128)),
            (ConstValue::I128(a), ConstValue::I32(b)) => vm.push(add_i128(*a, *b as i128)),
            (ConstValue::I128(a), ConstValue::I64(b)) => vm.push(add_i128(*a, *b as i128)),
            (ConstValue::I128(a), ConstValue::I128(b)) => vm.push(add_i128(*a, *b)),
            (ConstValue::I128(a), ConstValue::IBig(b)) => vm.push(add_ibig(&BigInt::from(*a), b)),

            (ConstValue::IBig(a), ConstValue::I8(b)) => vm.push(add_ibig(a, &BigInt::from(*b))),
            (ConstValue::IBig(a), ConstValue::I16(b)) => vm.push(add_ibig(a, &BigInt::from(*b))),
            (ConstValue::IBig(a), ConstValue::I32(b)) => vm.push(add_ibig(a, &BigInt::from(*b))),
            (ConstValue::IBig(a), ConstValue::I64(b)) => vm.push(add_ibig(a, &BigInt::from(*b))),
            (ConstValue::IBig(a), ConstValue::I128(b)) => vm.push(add_ibig(a, &BigInt::from(*b))),
            (ConstValue::IBig(a), ConstValue::IBig(b)) => vm.push(add_ibig(a, b)),

            (ConstValue::U8(b), ConstValue::I8(a)) => vm.push(add_i16(*a as i16, *b as i16)),
            (ConstValue::U16(b), ConstValue::I8(a)) => vm.push(add_i32(*a as i32, *b as i32)),
            (ConstValue::U32(b), ConstValue::I8(a)) => vm.push(add_i64(*a as i64, *b as i64)),
            (ConstValue::U64(b), ConstValue::I8(a)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::U128(b), ConstValue::I8(a)) => {
                vm.push(add_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::UBig(b), ConstValue::I8(a)) => {
                vm.push(add_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::U8(b), ConstValue::I16(a)) => vm.push(add_i16(*a as i16, *b as i16)),
            (ConstValue::U16(b), ConstValue::I16(a)) => vm.push(add_i32(*a as i32, *b as i32)),
            (ConstValue::U32(b), ConstValue::I16(a)) => vm.push(add_i64(*a as i64, *b as i64)),
            (ConstValue::U64(b), ConstValue::I16(a)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::U128(b), ConstValue::I16(a)) => {
                vm.push(add_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::UBig(b), ConstValue::I16(a)) => {
                vm.push(add_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::U8(b), ConstValue::I32(a)) => vm.push(add_i32(*a as i32, *b as i32)),
            (ConstValue::U16(b), ConstValue::I32(a)) => vm.push(add_i32(*a as i32, *b as i32)),
            (ConstValue::U32(b), ConstValue::I32(a)) => vm.push(add_i64(*a as i64, *b as i64)),
            (ConstValue::U64(b), ConstValue::I32(a)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::U128(b), ConstValue::I32(a)) => {
                vm.push(add_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::UBig(b), ConstValue::I32(a)) => {
                vm.push(add_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::U8(b), ConstValue::I64(a)) => vm.push(add_i64(*a as i64, *b as i64)),
            (ConstValue::U16(b), ConstValue::I64(a)) => vm.push(add_i64(*a as i64, *b as i64)),
            (ConstValue::U32(b), ConstValue::I64(a)) => vm.push(add_i64(*a as i64, *b as i64)),
            (ConstValue::U64(b), ConstValue::I64(a)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::U128(b), ConstValue::I64(a)) => {
                vm.push(add_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::UBig(b), ConstValue::I64(a)) => {
                vm.push(add_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::U8(b), ConstValue::I128(a)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::U16(b), ConstValue::I128(a)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::U32(b), ConstValue::I128(a)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::U64(b), ConstValue::I128(a)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::U128(b), ConstValue::I128(a)) => {
                vm.push(add_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::UBig(b), ConstValue::I128(a)) => {
                vm.push(add_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::U8(b), ConstValue::IBig(a)) => vm.push(add_ibig(a, &(*b).into())),
            (ConstValue::U16(b), ConstValue::IBig(a)) => vm.push(add_ibig(a, &(*b).into())),
            (ConstValue::U32(b), ConstValue::IBig(a)) => vm.push(add_ibig(a, &(*b).into())),
            (ConstValue::U64(b), ConstValue::IBig(a)) => vm.push(add_ibig(a, &(*b).into())),
            (ConstValue::U128(b), ConstValue::IBig(a)) => vm.push(add_ibig(a, &(*b).into())),
            (ConstValue::UBig(b), ConstValue::IBig(a)) => vm.push(add_ibig(a, &(b.clone().into()))),

            (ConstValue::I8(a), ConstValue::U8(b)) => vm.push(add_i16(*a as i16, *b as i16)),
            (ConstValue::I8(a), ConstValue::U16(b)) => vm.push(add_i32(*a as i32, *b as i32)),
            (ConstValue::I8(a), ConstValue::U32(b)) => vm.push(add_i64(*a as i64, *b as i64)),
            (ConstValue::I8(a), ConstValue::U64(b)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::I8(a), ConstValue::U128(b)) => {
                vm.push(add_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::I8(a), ConstValue::UBig(b)) => {
                vm.push(add_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::I16(a), ConstValue::U8(b)) => vm.push(add_i16(*a as i16, *b as i16)),
            (ConstValue::I16(a), ConstValue::U16(b)) => vm.push(add_i32(*a as i32, *b as i32)),
            (ConstValue::I16(a), ConstValue::U32(b)) => vm.push(add_i64(*a as i64, *b as i64)),
            (ConstValue::I16(a), ConstValue::U64(b)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::I16(a), ConstValue::U128(b)) => {
                vm.push(add_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::I16(a), ConstValue::UBig(b)) => {
                vm.push(add_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::I32(a), ConstValue::U8(b)) => vm.push(add_i32(*a as i32, *b as i32)),
            (ConstValue::I32(a), ConstValue::U16(b)) => vm.push(add_i32(*a as i32, *b as i32)),
            (ConstValue::I32(a), ConstValue::U32(b)) => vm.push(add_i64(*a as i64, *b as i64)),
            (ConstValue::I32(a), ConstValue::U64(b)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::I32(a), ConstValue::U128(b)) => {
                vm.push(add_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::I32(a), ConstValue::UBig(b)) => {
                vm.push(add_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::I64(a), ConstValue::U8(b)) => vm.push(add_i64(*a as i64, *b as i64)),
            (ConstValue::I64(a), ConstValue::U16(b)) => vm.push(add_i64(*a as i64, *b as i64)),
            (ConstValue::I64(a), ConstValue::U32(b)) => vm.push(add_i64(*a as i64, *b as i64)),
            (ConstValue::I64(a), ConstValue::U64(b)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::I64(a), ConstValue::U128(b)) => {
                vm.push(add_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::I64(a), ConstValue::UBig(b)) => {
                vm.push(add_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::I128(a), ConstValue::U8(b)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::I128(a), ConstValue::U16(b)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::I128(a), ConstValue::U32(b)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::I128(a), ConstValue::U64(b)) => vm.push(add_i128(*a as i128, *b as i128)),
            (ConstValue::I128(a), ConstValue::U128(b)) => {
                vm.push(add_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::I128(a), ConstValue::UBig(b)) => {
                vm.push(add_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::IBig(a), ConstValue::U8(b)) => vm.push(add_ibig(a, &(*b).into())),
            (ConstValue::IBig(a), ConstValue::U16(b)) => vm.push(add_ibig(a, &(*b).into())),
            (ConstValue::IBig(a), ConstValue::U32(b)) => vm.push(add_ibig(a, &(*b).into())),
            (ConstValue::IBig(a), ConstValue::U64(b)) => vm.push(add_ibig(a, &(*b).into())),
            (ConstValue::IBig(a), ConstValue::U128(b)) => vm.push(add_ibig(a, &(*b).into())),
            (ConstValue::IBig(a), ConstValue::UBig(b)) => vm.push(add_ibig(a, &(b.clone().into()))),

            (ConstValue::F32(a), ConstValue::U8(b)) | (ConstValue::U8(b), ConstValue::F32(a)) => {
                vm.push(add_f32(*a, *b as f32))
            }
            (ConstValue::F32(a), ConstValue::I8(b)) | (ConstValue::I8(b), ConstValue::F32(a)) => {
                vm.push(add_f32(*a, *b as f32))
            }
            (ConstValue::F32(a), ConstValue::U16(b)) | (ConstValue::U16(b), ConstValue::F32(a)) => {
                vm.push(add_f32(*a, *b as f32))
            }
            (ConstValue::F32(a), ConstValue::I16(b)) | (ConstValue::I16(b), ConstValue::F32(a)) => {
                vm.push(add_f32(*a, *b as f32))
            }
            (ConstValue::F32(a), ConstValue::U32(b)) | (ConstValue::U32(b), ConstValue::F32(a)) => {
                vm.push(add_f64(*a as f64, *b as f64))
            }
            (ConstValue::F32(a), ConstValue::I32(b)) | (ConstValue::I32(b), ConstValue::F32(a)) => {
                vm.push(add_f64(*a as f64, *b as f64))
            }
            (ConstValue::F32(a), ConstValue::U64(b)) | (ConstValue::U64(b), ConstValue::F32(a)) => {
                vm.push(add_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F32(a), ConstValue::I64(b)) | (ConstValue::I64(b), ConstValue::F32(a)) => {
                vm.push(add_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F32(a), ConstValue::U128(b))
            | (ConstValue::U128(b), ConstValue::F32(a)) => {
                vm.push(add_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F32(a), ConstValue::I128(b))
            | (ConstValue::I128(b), ConstValue::F32(a)) => {
                vm.push(add_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F32(a), ConstValue::UBig(b))
            | (ConstValue::UBig(b), ConstValue::F32(a)) => {
                vm.push(add_fbig(&(*a).into(), &(b.clone().into())))
            }
            (ConstValue::F32(a), ConstValue::IBig(b))
            | (ConstValue::IBig(b), ConstValue::F32(a)) => {
                vm.push(add_fbig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::F64(a), ConstValue::U8(b)) | (ConstValue::U8(b), ConstValue::F64(a)) => {
                vm.push(add_f64(*a, *b as f64))
            }
            (ConstValue::F64(a), ConstValue::I8(b)) | (ConstValue::I8(b), ConstValue::F64(a)) => {
                vm.push(add_f64(*a, *b as f64))
            }
            (ConstValue::F64(a), ConstValue::U16(b)) | (ConstValue::U16(b), ConstValue::F64(a)) => {
                vm.push(add_f64(*a, *b as f64))
            }
            (ConstValue::F64(a), ConstValue::I16(b)) | (ConstValue::I16(b), ConstValue::F64(a)) => {
                vm.push(add_f64(*a, *b as f64))
            }
            (ConstValue::F64(a), ConstValue::U32(b)) | (ConstValue::U32(b), ConstValue::F64(a)) => {
                vm.push(add_f64(*a, *b as f64))
            }
            (ConstValue::F64(a), ConstValue::I32(b)) | (ConstValue::I32(b), ConstValue::F64(a)) => {
                vm.push(add_f64(*a, *b as f64))
            }
            (ConstValue::F64(a), ConstValue::U64(b)) | (ConstValue::U64(b), ConstValue::F64(a)) => {
                vm.push(add_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F64(a), ConstValue::I64(b)) | (ConstValue::I64(b), ConstValue::F64(a)) => {
                vm.push(add_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F64(a), ConstValue::U128(b))
            | (ConstValue::U128(b), ConstValue::F64(a)) => {
                vm.push(add_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F64(a), ConstValue::I128(b))
            | (ConstValue::I128(b), ConstValue::F64(a)) => {
                vm.push(add_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F64(a), ConstValue::UBig(b))
            | (ConstValue::UBig(b), ConstValue::F64(a)) => {
                vm.push(add_fbig(&(*a).into(), &(b.clone().into())))
            }
            (ConstValue::F64(a), ConstValue::IBig(b))
            | (ConstValue::IBig(b), ConstValue::F64(a)) => {
                vm.push(add_fbig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::FBig(a), ConstValue::U8(b)) | (ConstValue::U8(b), ConstValue::FBig(a)) => {
                vm.push(add_fbig(a, &(*b).into()))
            }
            (ConstValue::FBig(a), ConstValue::I8(b)) | (ConstValue::I8(b), ConstValue::FBig(a)) => {
                vm.push(add_fbig(a, &(*b).into()))
            }
            (ConstValue::FBig(a), ConstValue::U16(b))
            | (ConstValue::U16(b), ConstValue::FBig(a)) => vm.push(add_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::I16(b))
            | (ConstValue::I16(b), ConstValue::FBig(a)) => vm.push(add_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::U32(b))
            | (ConstValue::U32(b), ConstValue::FBig(a)) => vm.push(add_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::I32(b))
            | (ConstValue::I32(b), ConstValue::FBig(a)) => vm.push(add_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::U64(b))
            | (ConstValue::U64(b), ConstValue::FBig(a)) => vm.push(add_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::I64(b))
            | (ConstValue::I64(b), ConstValue::FBig(a)) => vm.push(add_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::U128(b))
            | (ConstValue::U128(b), ConstValue::FBig(a)) => vm.push(add_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::I128(b))
            | (ConstValue::I128(b), ConstValue::FBig(a)) => vm.push(add_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::UBig(b))
            | (ConstValue::UBig(b), ConstValue::FBig(a)) => {
                vm.push(add_fbig(a, &(b.clone().into())))
            }
            (ConstValue::FBig(a), ConstValue::IBig(b))
            | (ConstValue::IBig(b), ConstValue::FBig(a)) => {
                vm.push(add_fbig(a, &(b.clone().into())))
            }

            (ConstValue::F32(a), ConstValue::F32(b)) => vm.push(add_f32(*a, *b)),
            (ConstValue::F32(a), ConstValue::F64(b)) => vm.push(add_f64(*a as f64, *b)),
            (ConstValue::F64(a), ConstValue::F32(b)) => vm.push(add_f64(*a, *b as f64)),
            (ConstValue::F64(a), ConstValue::F64(b)) => vm.push(add_f64(*a, *b)),
            (ConstValue::F32(a), ConstValue::FBig(b)) => vm.push(add_fbig(&(*a).into(), b)),
            (ConstValue::F64(a), ConstValue::FBig(b)) => vm.push(add_fbig(&(*a).into(), b)),
            (ConstValue::FBig(b), ConstValue::F32(a)) => vm.push(add_fbig(&(*a).into(), b)),
            (ConstValue::FBig(b), ConstValue::F64(a)) => vm.push(add_fbig(&(*a).into(), b)),
            (ConstValue::FBig(a), ConstValue::FBig(b)) => vm.push(add_fbig(a, b)),
        }
        VMResult::Ok(())
    }

    fn number_minus(vm: &mut VM) -> VMResult<()> {
        let receiver = unwrap!(vm, vm.pop_eval::<Self>());
        let operand = unwrap!(vm, vm.pop_eval::<Self>());

        match (&receiver.const_value, &operand.const_value) {
            (ConstValue::Lazy(_, _, _), _) | (_, ConstValue::Lazy(_, _, _)) => {
                return vm.panic("subtracting lazy".into())
            }

            (ConstValue::InstanceVariables(_), _)
            | (_, ConstValue::InstanceVariables(_))
            | (ConstValue::Nothing, _)
            | (_, ConstValue::Nothing)
            | (ConstValue::String(_), _)
            | (_, ConstValue::String(_))
            | (ConstValue::Character(_), _)
            | (_, ConstValue::Character(_))
            | (ConstValue::Symbol(_), _)
            | (_, ConstValue::Symbol(_)) => return vm.panic("not a number".into()),

            (ConstValue::U8(a), ConstValue::U8(b)) => vm.push(subtract_u8(*a, *b)),
            (ConstValue::U8(a), ConstValue::U16(b)) => vm.push(subtract_u16(*a as u16, *b)),
            (ConstValue::U8(a), ConstValue::U32(b)) => vm.push(subtract_u32(*a as u32, *b)),
            (ConstValue::U8(a), ConstValue::U64(b)) => vm.push(subtract_u64(*a as u64, *b)),
            (ConstValue::U8(a), ConstValue::U128(b)) => vm.push(subtract_u128(*a as u128, *b)),
            (ConstValue::U8(a), ConstValue::UBig(b)) => {
                vm.push(subtract_ubig(&BigUint::from(*a), b))
            }

            (ConstValue::U16(a), ConstValue::U8(b)) => vm.push(subtract_u16(*a, *b as u16)),
            (ConstValue::U16(a), ConstValue::U16(b)) => vm.push(subtract_u16(*a, *b)),
            (ConstValue::U16(a), ConstValue::U32(b)) => vm.push(subtract_u32(*a as u32, *b)),
            (ConstValue::U16(a), ConstValue::U64(b)) => vm.push(subtract_u64(*a as u64, *b)),
            (ConstValue::U16(a), ConstValue::U128(b)) => vm.push(subtract_u128(*a as u128, *b)),
            (ConstValue::U16(a), ConstValue::UBig(b)) => {
                vm.push(subtract_ubig(&BigUint::from(*a), b))
            }

            (ConstValue::U32(a), ConstValue::U8(b)) => vm.push(subtract_u32(*a, *b as u32)),
            (ConstValue::U32(a), ConstValue::U16(b)) => vm.push(subtract_u32(*a, *b as u32)),
            (ConstValue::U32(a), ConstValue::U32(b)) => vm.push(subtract_u32(*a, *b)),
            (ConstValue::U32(a), ConstValue::U64(b)) => vm.push(subtract_u64(*a as u64, *b)),
            (ConstValue::U32(a), ConstValue::U128(b)) => vm.push(subtract_u128(*a as u128, *b)),
            (ConstValue::U32(a), ConstValue::UBig(b)) => {
                vm.push(subtract_ubig(&BigUint::from(*a), b))
            }

            (ConstValue::U64(a), ConstValue::U8(b)) => vm.push(subtract_u64(*a, *b as u64)),
            (ConstValue::U64(a), ConstValue::U16(b)) => vm.push(subtract_u64(*a, *b as u64)),
            (ConstValue::U64(a), ConstValue::U32(b)) => vm.push(subtract_u64(*a, *b as u64)),
            (ConstValue::U64(a), ConstValue::U64(b)) => vm.push(subtract_u64(*a, *b)),
            (ConstValue::U64(a), ConstValue::U128(b)) => vm.push(subtract_u128(*a as u128, *b)),
            (ConstValue::U64(a), ConstValue::UBig(b)) => {
                vm.push(subtract_ubig(&BigUint::from(*a), b))
            }

            (ConstValue::U128(a), ConstValue::U8(b)) => vm.push(subtract_u128(*a, *b as u128)),
            (ConstValue::U128(a), ConstValue::U16(b)) => vm.push(subtract_u128(*a, *b as u128)),
            (ConstValue::U128(a), ConstValue::U32(b)) => vm.push(subtract_u128(*a, *b as u128)),
            (ConstValue::U128(a), ConstValue::U64(b)) => vm.push(subtract_u128(*a, *b as u128)),
            (ConstValue::U128(a), ConstValue::U128(b)) => vm.push(subtract_u128(*a, *b)),
            (ConstValue::U128(a), ConstValue::UBig(b)) => {
                vm.push(subtract_ubig(&BigUint::from(*a), b))
            }

            (ConstValue::UBig(a), ConstValue::U8(b)) => {
                vm.push(subtract_ubig(a, &BigUint::from(*b)))
            }
            (ConstValue::UBig(a), ConstValue::U16(b)) => {
                vm.push(subtract_ubig(a, &BigUint::from(*b)))
            }
            (ConstValue::UBig(a), ConstValue::U32(b)) => {
                vm.push(subtract_ubig(a, &BigUint::from(*b)))
            }
            (ConstValue::UBig(a), ConstValue::U64(b)) => {
                vm.push(subtract_ubig(a, &BigUint::from(*b)))
            }
            (ConstValue::UBig(a), ConstValue::U128(b)) => {
                vm.push(subtract_ubig(a, &BigUint::from(*b)))
            }
            (ConstValue::UBig(a), ConstValue::UBig(b)) => vm.push(subtract_ubig(a, b)),

            (ConstValue::I8(a), ConstValue::I8(b)) => vm.push(subtract_i8(*a, *b)),
            (ConstValue::I8(a), ConstValue::I16(b)) => vm.push(subtract_i16(*a as i16, *b)),
            (ConstValue::I8(a), ConstValue::I32(b)) => vm.push(subtract_i32(*a as i32, *b)),
            (ConstValue::I8(a), ConstValue::I64(b)) => vm.push(subtract_i64(*a as i64, *b)),
            (ConstValue::I8(a), ConstValue::I128(b)) => vm.push(subtract_i128(*a as i128, *b)),
            (ConstValue::I8(a), ConstValue::IBig(b)) => {
                vm.push(subtract_ibig(&BigInt::from(*a), b))
            }

            (ConstValue::I16(a), ConstValue::I8(b)) => vm.push(subtract_i16(*a, *b as i16)),
            (ConstValue::I16(a), ConstValue::I16(b)) => vm.push(subtract_i16(*a, *b)),
            (ConstValue::I16(a), ConstValue::I32(b)) => vm.push(subtract_i32(*a as i32, *b)),
            (ConstValue::I16(a), ConstValue::I64(b)) => vm.push(subtract_i64(*a as i64, *b)),
            (ConstValue::I16(a), ConstValue::I128(b)) => vm.push(subtract_i128(*a as i128, *b)),
            (ConstValue::I16(a), ConstValue::IBig(b)) => {
                vm.push(subtract_ibig(&BigInt::from(*a), b))
            }

            (ConstValue::I32(a), ConstValue::I8(b)) => vm.push(subtract_i32(*a, *b as i32)),
            (ConstValue::I32(a), ConstValue::I16(b)) => vm.push(subtract_i32(*a, *b as i32)),
            (ConstValue::I32(a), ConstValue::I32(b)) => vm.push(subtract_i32(*a, *b)),
            (ConstValue::I32(a), ConstValue::I64(b)) => vm.push(subtract_i64(*a as i64, *b)),
            (ConstValue::I32(a), ConstValue::I128(b)) => vm.push(subtract_i128(*a as i128, *b)),
            (ConstValue::I32(a), ConstValue::IBig(b)) => {
                vm.push(subtract_ibig(&BigInt::from(*a), b))
            }

            (ConstValue::I64(a), ConstValue::I8(b)) => vm.push(subtract_i64(*a, *b as i64)),
            (ConstValue::I64(a), ConstValue::I16(b)) => vm.push(subtract_i64(*a, *b as i64)),
            (ConstValue::I64(a), ConstValue::I32(b)) => vm.push(subtract_i64(*a, *b as i64)),
            (ConstValue::I64(a), ConstValue::I64(b)) => vm.push(subtract_i64(*a, *b)),
            (ConstValue::I64(a), ConstValue::I128(b)) => vm.push(subtract_i128(*a as i128, *b)),
            (ConstValue::I64(a), ConstValue::IBig(b)) => {
                vm.push(subtract_ibig(&BigInt::from(*a), b))
            }

            (ConstValue::I128(a), ConstValue::I8(b)) => vm.push(subtract_i128(*a, *b as i128)),
            (ConstValue::I128(a), ConstValue::I16(b)) => vm.push(subtract_i128(*a, *b as i128)),
            (ConstValue::I128(a), ConstValue::I32(b)) => vm.push(subtract_i128(*a, *b as i128)),
            (ConstValue::I128(a), ConstValue::I64(b)) => vm.push(subtract_i128(*a, *b as i128)),
            (ConstValue::I128(a), ConstValue::I128(b)) => vm.push(subtract_i128(*a, *b)),
            (ConstValue::I128(a), ConstValue::IBig(b)) => {
                vm.push(subtract_ibig(&BigInt::from(*a), b))
            }

            (ConstValue::IBig(a), ConstValue::I8(b)) => {
                vm.push(subtract_ibig(a, &BigInt::from(*b)))
            }
            (ConstValue::IBig(a), ConstValue::I16(b)) => {
                vm.push(subtract_ibig(a, &BigInt::from(*b)))
            }
            (ConstValue::IBig(a), ConstValue::I32(b)) => {
                vm.push(subtract_ibig(a, &BigInt::from(*b)))
            }
            (ConstValue::IBig(a), ConstValue::I64(b)) => {
                vm.push(subtract_ibig(a, &BigInt::from(*b)))
            }
            (ConstValue::IBig(a), ConstValue::I128(b)) => {
                vm.push(subtract_ibig(a, &BigInt::from(*b)))
            }
            (ConstValue::IBig(a), ConstValue::IBig(b)) => vm.push(subtract_ibig(a, b)),

            (ConstValue::U8(b), ConstValue::I8(a)) => vm.push(subtract_i16(*a as i16, *b as i16)),
            (ConstValue::U16(b), ConstValue::I8(a)) => vm.push(subtract_i32(*a as i32, *b as i32)),
            (ConstValue::U32(b), ConstValue::I8(a)) => vm.push(subtract_i64(*a as i64, *b as i64)),
            (ConstValue::U64(b), ConstValue::I8(a)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::U128(b), ConstValue::I8(a)) => {
                vm.push(subtract_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::UBig(b), ConstValue::I8(a)) => {
                vm.push(subtract_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::U8(b), ConstValue::I16(a)) => vm.push(subtract_i16(*a as i16, *b as i16)),
            (ConstValue::U16(b), ConstValue::I16(a)) => vm.push(subtract_i32(*a as i32, *b as i32)),
            (ConstValue::U32(b), ConstValue::I16(a)) => vm.push(subtract_i64(*a as i64, *b as i64)),
            (ConstValue::U64(b), ConstValue::I16(a)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::U128(b), ConstValue::I16(a)) => {
                vm.push(subtract_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::UBig(b), ConstValue::I16(a)) => {
                vm.push(subtract_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::U8(b), ConstValue::I32(a)) => vm.push(subtract_i32(*a as i32, *b as i32)),
            (ConstValue::U16(b), ConstValue::I32(a)) => vm.push(subtract_i32(*a as i32, *b as i32)),
            (ConstValue::U32(b), ConstValue::I32(a)) => vm.push(subtract_i64(*a as i64, *b as i64)),
            (ConstValue::U64(b), ConstValue::I32(a)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::U128(b), ConstValue::I32(a)) => {
                vm.push(subtract_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::UBig(b), ConstValue::I32(a)) => {
                vm.push(subtract_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::U8(b), ConstValue::I64(a)) => vm.push(subtract_i64(*a as i64, *b as i64)),
            (ConstValue::U16(b), ConstValue::I64(a)) => vm.push(subtract_i64(*a as i64, *b as i64)),
            (ConstValue::U32(b), ConstValue::I64(a)) => vm.push(subtract_i64(*a as i64, *b as i64)),
            (ConstValue::U64(b), ConstValue::I64(a)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::U128(b), ConstValue::I64(a)) => {
                vm.push(subtract_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::UBig(b), ConstValue::I64(a)) => {
                vm.push(subtract_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::U8(b), ConstValue::I128(a)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::U16(b), ConstValue::I128(a)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::U32(b), ConstValue::I128(a)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::U64(b), ConstValue::I128(a)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::U128(b), ConstValue::I128(a)) => {
                vm.push(subtract_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::UBig(b), ConstValue::I128(a)) => {
                vm.push(subtract_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::U8(b), ConstValue::IBig(a)) => vm.push(subtract_ibig(a, &(*b).into())),
            (ConstValue::U16(b), ConstValue::IBig(a)) => vm.push(subtract_ibig(a, &(*b).into())),
            (ConstValue::U32(b), ConstValue::IBig(a)) => vm.push(subtract_ibig(a, &(*b).into())),
            (ConstValue::U64(b), ConstValue::IBig(a)) => vm.push(subtract_ibig(a, &(*b).into())),
            (ConstValue::U128(b), ConstValue::IBig(a)) => vm.push(subtract_ibig(a, &(*b).into())),
            (ConstValue::UBig(b), ConstValue::IBig(a)) => {
                vm.push(subtract_ibig(a, &(b.clone().into())))
            }

            (ConstValue::I8(a), ConstValue::U8(b)) => vm.push(subtract_i16(*a as i16, *b as i16)),
            (ConstValue::I8(a), ConstValue::U16(b)) => vm.push(subtract_i32(*a as i32, *b as i32)),
            (ConstValue::I8(a), ConstValue::U32(b)) => vm.push(subtract_i64(*a as i64, *b as i64)),
            (ConstValue::I8(a), ConstValue::U64(b)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::I8(a), ConstValue::U128(b)) => {
                vm.push(subtract_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::I8(a), ConstValue::UBig(b)) => {
                vm.push(subtract_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::I16(a), ConstValue::U8(b)) => vm.push(subtract_i16(*a as i16, *b as i16)),
            (ConstValue::I16(a), ConstValue::U16(b)) => vm.push(subtract_i32(*a as i32, *b as i32)),
            (ConstValue::I16(a), ConstValue::U32(b)) => vm.push(subtract_i64(*a as i64, *b as i64)),
            (ConstValue::I16(a), ConstValue::U64(b)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::I16(a), ConstValue::U128(b)) => {
                vm.push(subtract_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::I16(a), ConstValue::UBig(b)) => {
                vm.push(subtract_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::I32(a), ConstValue::U8(b)) => vm.push(subtract_i32(*a as i32, *b as i32)),
            (ConstValue::I32(a), ConstValue::U16(b)) => vm.push(subtract_i32(*a as i32, *b as i32)),
            (ConstValue::I32(a), ConstValue::U32(b)) => vm.push(subtract_i64(*a as i64, *b as i64)),
            (ConstValue::I32(a), ConstValue::U64(b)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::I32(a), ConstValue::U128(b)) => {
                vm.push(subtract_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::I32(a), ConstValue::UBig(b)) => {
                vm.push(subtract_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::I64(a), ConstValue::U8(b)) => vm.push(subtract_i64(*a as i64, *b as i64)),
            (ConstValue::I64(a), ConstValue::U16(b)) => vm.push(subtract_i64(*a as i64, *b as i64)),
            (ConstValue::I64(a), ConstValue::U32(b)) => vm.push(subtract_i64(*a as i64, *b as i64)),
            (ConstValue::I64(a), ConstValue::U64(b)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::I64(a), ConstValue::U128(b)) => {
                vm.push(subtract_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::I64(a), ConstValue::UBig(b)) => {
                vm.push(subtract_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::I128(a), ConstValue::U8(b)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::I128(a), ConstValue::U16(b)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::I128(a), ConstValue::U32(b)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::I128(a), ConstValue::U64(b)) => {
                vm.push(subtract_i128(*a as i128, *b as i128))
            }
            (ConstValue::I128(a), ConstValue::U128(b)) => {
                vm.push(subtract_ibig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::I128(a), ConstValue::UBig(b)) => {
                vm.push(subtract_ibig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::IBig(a), ConstValue::U8(b)) => vm.push(subtract_ibig(a, &(*b).into())),
            (ConstValue::IBig(a), ConstValue::U16(b)) => vm.push(subtract_ibig(a, &(*b).into())),
            (ConstValue::IBig(a), ConstValue::U32(b)) => vm.push(subtract_ibig(a, &(*b).into())),
            (ConstValue::IBig(a), ConstValue::U64(b)) => vm.push(subtract_ibig(a, &(*b).into())),
            (ConstValue::IBig(a), ConstValue::U128(b)) => vm.push(subtract_ibig(a, &(*b).into())),
            (ConstValue::IBig(a), ConstValue::UBig(b)) => {
                vm.push(subtract_ibig(a, &(b.clone().into())))
            }

            (ConstValue::F32(a), ConstValue::U8(b)) | (ConstValue::U8(b), ConstValue::F32(a)) => {
                vm.push(subtract_f32(*a, *b as f32))
            }
            (ConstValue::F32(a), ConstValue::I8(b)) | (ConstValue::I8(b), ConstValue::F32(a)) => {
                vm.push(subtract_f32(*a, *b as f32))
            }
            (ConstValue::F32(a), ConstValue::U16(b)) | (ConstValue::U16(b), ConstValue::F32(a)) => {
                vm.push(subtract_f32(*a, *b as f32))
            }
            (ConstValue::F32(a), ConstValue::I16(b)) | (ConstValue::I16(b), ConstValue::F32(a)) => {
                vm.push(subtract_f32(*a, *b as f32))
            }
            (ConstValue::F32(a), ConstValue::U32(b)) | (ConstValue::U32(b), ConstValue::F32(a)) => {
                vm.push(subtract_f64(*a as f64, *b as f64))
            }
            (ConstValue::F32(a), ConstValue::I32(b)) | (ConstValue::I32(b), ConstValue::F32(a)) => {
                vm.push(subtract_f64(*a as f64, *b as f64))
            }
            (ConstValue::F32(a), ConstValue::U64(b)) | (ConstValue::U64(b), ConstValue::F32(a)) => {
                vm.push(subtract_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F32(a), ConstValue::I64(b)) | (ConstValue::I64(b), ConstValue::F32(a)) => {
                vm.push(subtract_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F32(a), ConstValue::U128(b))
            | (ConstValue::U128(b), ConstValue::F32(a)) => {
                vm.push(subtract_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F32(a), ConstValue::I128(b))
            | (ConstValue::I128(b), ConstValue::F32(a)) => {
                vm.push(subtract_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F32(a), ConstValue::UBig(b))
            | (ConstValue::UBig(b), ConstValue::F32(a)) => {
                vm.push(subtract_fbig(&(*a).into(), &(b.clone().into())))
            }
            (ConstValue::F32(a), ConstValue::IBig(b))
            | (ConstValue::IBig(b), ConstValue::F32(a)) => {
                vm.push(subtract_fbig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::F64(a), ConstValue::U8(b)) | (ConstValue::U8(b), ConstValue::F64(a)) => {
                vm.push(subtract_f64(*a, *b as f64))
            }
            (ConstValue::F64(a), ConstValue::I8(b)) | (ConstValue::I8(b), ConstValue::F64(a)) => {
                vm.push(subtract_f64(*a, *b as f64))
            }
            (ConstValue::F64(a), ConstValue::U16(b)) | (ConstValue::U16(b), ConstValue::F64(a)) => {
                vm.push(subtract_f64(*a, *b as f64))
            }
            (ConstValue::F64(a), ConstValue::I16(b)) | (ConstValue::I16(b), ConstValue::F64(a)) => {
                vm.push(subtract_f64(*a, *b as f64))
            }
            (ConstValue::F64(a), ConstValue::U32(b)) | (ConstValue::U32(b), ConstValue::F64(a)) => {
                vm.push(subtract_f64(*a, *b as f64))
            }
            (ConstValue::F64(a), ConstValue::I32(b)) | (ConstValue::I32(b), ConstValue::F64(a)) => {
                vm.push(subtract_f64(*a, *b as f64))
            }
            (ConstValue::F64(a), ConstValue::U64(b)) | (ConstValue::U64(b), ConstValue::F64(a)) => {
                vm.push(subtract_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F64(a), ConstValue::I64(b)) | (ConstValue::I64(b), ConstValue::F64(a)) => {
                vm.push(subtract_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F64(a), ConstValue::U128(b))
            | (ConstValue::U128(b), ConstValue::F64(a)) => {
                vm.push(subtract_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F64(a), ConstValue::I128(b))
            | (ConstValue::I128(b), ConstValue::F64(a)) => {
                vm.push(subtract_fbig(&(*a).into(), &(*b).into()))
            }
            (ConstValue::F64(a), ConstValue::UBig(b))
            | (ConstValue::UBig(b), ConstValue::F64(a)) => {
                vm.push(subtract_fbig(&(*a).into(), &(b.clone().into())))
            }
            (ConstValue::F64(a), ConstValue::IBig(b))
            | (ConstValue::IBig(b), ConstValue::F64(a)) => {
                vm.push(subtract_fbig(&(*a).into(), &(b.clone().into())))
            }

            (ConstValue::FBig(a), ConstValue::U8(b)) | (ConstValue::U8(b), ConstValue::FBig(a)) => {
                vm.push(subtract_fbig(a, &(*b).into()))
            }
            (ConstValue::FBig(a), ConstValue::I8(b)) | (ConstValue::I8(b), ConstValue::FBig(a)) => {
                vm.push(subtract_fbig(a, &(*b).into()))
            }
            (ConstValue::FBig(a), ConstValue::U16(b))
            | (ConstValue::U16(b), ConstValue::FBig(a)) => vm.push(subtract_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::I16(b))
            | (ConstValue::I16(b), ConstValue::FBig(a)) => vm.push(subtract_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::U32(b))
            | (ConstValue::U32(b), ConstValue::FBig(a)) => vm.push(subtract_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::I32(b))
            | (ConstValue::I32(b), ConstValue::FBig(a)) => vm.push(subtract_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::U64(b))
            | (ConstValue::U64(b), ConstValue::FBig(a)) => vm.push(subtract_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::I64(b))
            | (ConstValue::I64(b), ConstValue::FBig(a)) => vm.push(subtract_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::U128(b))
            | (ConstValue::U128(b), ConstValue::FBig(a)) => vm.push(subtract_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::I128(b))
            | (ConstValue::I128(b), ConstValue::FBig(a)) => vm.push(subtract_fbig(a, &(*b).into())),
            (ConstValue::FBig(a), ConstValue::UBig(b))
            | (ConstValue::UBig(b), ConstValue::FBig(a)) => {
                vm.push(subtract_fbig(a, &(b.clone().into())))
            }
            (ConstValue::FBig(a), ConstValue::IBig(b))
            | (ConstValue::IBig(b), ConstValue::FBig(a)) => {
                vm.push(subtract_fbig(a, &(b.clone().into())))
            }

            (ConstValue::F32(a), ConstValue::F32(b)) => vm.push(subtract_f32(*a, *b)),
            (ConstValue::F32(a), ConstValue::F64(b)) => vm.push(subtract_f64(*a as f64, *b)),
            (ConstValue::F64(a), ConstValue::F32(b)) => vm.push(subtract_f64(*a, *b as f64)),
            (ConstValue::F64(a), ConstValue::F64(b)) => vm.push(subtract_f64(*a, *b)),
            (ConstValue::F32(a), ConstValue::FBig(b)) => vm.push(subtract_fbig(&(*a).into(), b)),
            (ConstValue::F64(a), ConstValue::FBig(b)) => vm.push(subtract_fbig(&(*a).into(), b)),
            (ConstValue::FBig(b), ConstValue::F32(a)) => vm.push(subtract_fbig(&(*a).into(), b)),
            (ConstValue::FBig(b), ConstValue::F64(a)) => vm.push(subtract_fbig(&(*a).into(), b)),
            (ConstValue::FBig(a), ConstValue::FBig(b)) => vm.push(subtract_fbig(a, b)),
        }
        VMResult::Ok(())
    }
}

fn add_u8(lhs: u8, rhs: u8) -> Arc<Object> {
    match lhs.checked_add(rhs) {
        Some(res) => Object::box_u8(res),
        None => add_u16(lhs as u16, rhs as u16),
    }
}

fn add_u16(lhs: u16, rhs: u16) -> Arc<Object> {
    match lhs.checked_add(rhs) {
        Some(res) => Object::box_u16(res),
        None => add_u32(lhs as u32, rhs as u32),
    }
}

fn add_u32(lhs: u32, rhs: u32) -> Arc<Object> {
    match lhs.checked_add(rhs) {
        Some(res) => Object::box_u32(res),
        None => add_u64(lhs as u64, rhs as u64),
    }
}

fn add_u64(lhs: u64, rhs: u64) -> Arc<Object> {
    match lhs.checked_add(rhs) {
        Some(res) => Object::box_u64(res),
        None => add_u128(lhs as u128, rhs as u128),
    }
}

fn add_u128(lhs: u128, rhs: u128) -> Arc<Object> {
    match lhs.checked_add(rhs) {
        Some(res) => Object::box_u128(res),
        None => add_ubig(&BigUint::from(lhs), &BigUint::from(rhs)),
    }
}

fn add_ubig(lhs: &BigUint, rhs: &BigUint) -> Arc<Object> {
    Object::box_ubig(lhs + rhs)
}

fn add_i8(lhs: i8, rhs: i8) -> Arc<Object> {
    match lhs.checked_add(rhs) {
        Some(res) => Object::box_i8(res),
        None => add_i16(lhs as i16, rhs as i16),
    }
}

fn add_i16(lhs: i16, rhs: i16) -> Arc<Object> {
    match lhs.checked_add(rhs) {
        Some(res) => Object::box_i16(res),
        None => add_i32(lhs as i32, rhs as i32),
    }
}

fn add_i32(lhs: i32, rhs: i32) -> Arc<Object> {
    match lhs.checked_add(rhs) {
        Some(res) => Object::box_i32(res),
        None => add_i64(lhs as i64, rhs as i64),
    }
}

fn add_i64(lhs: i64, rhs: i64) -> Arc<Object> {
    match lhs.checked_add(rhs) {
        Some(res) => Object::box_i64(res),
        None => add_i128(lhs as i128, rhs as i128),
    }
}

fn add_i128(lhs: i128, rhs: i128) -> Arc<Object> {
    match lhs.checked_add(rhs) {
        Some(res) => Object::box_i128(res),
        None => add_ibig(&lhs.into(), &rhs.into()),
    }
}

fn add_ibig(lhs: &BigInt, rhs: &BigInt) -> Arc<Object> {
    Object::box_ibig(lhs + rhs)
}

fn add_f32(lhs: f32, rhs: f32) -> Arc<Object> {
    Object::box_f32(lhs + rhs)
}

fn add_f64(lhs: f64, rhs: f64) -> Arc<Object> {
    Object::box_f64(lhs + rhs)
}

fn add_fbig(lhs: &BigFraction, rhs: &BigFraction) -> Arc<Object> {
    Object::box_fbig(lhs + rhs)
}

fn subtract_u8(lhs: u8, rhs: u8) -> Arc<Object> {
    match lhs.checked_sub(rhs) {
        Some(res) => Object::box_u8(res),
        None => subtract_u16(lhs as u16, rhs as u16),
    }
}

fn subtract_u16(lhs: u16, rhs: u16) -> Arc<Object> {
    match lhs.checked_sub(rhs) {
        Some(res) => Object::box_u16(res),
        None => subtract_u32(lhs as u32, rhs as u32),
    }
}

fn subtract_u32(lhs: u32, rhs: u32) -> Arc<Object> {
    match lhs.checked_sub(rhs) {
        Some(res) => Object::box_u32(res),
        None => subtract_u64(lhs as u64, rhs as u64),
    }
}

fn subtract_u64(lhs: u64, rhs: u64) -> Arc<Object> {
    match lhs.checked_sub(rhs) {
        Some(res) => Object::box_u64(res),
        None => subtract_u128(lhs as u128, rhs as u128),
    }
}

fn subtract_u128(lhs: u128, rhs: u128) -> Arc<Object> {
    match lhs.checked_sub(rhs) {
        Some(res) => Object::box_u128(res),
        None => subtract_ubig(&BigUint::from(lhs), &BigUint::from(rhs)),
    }
}

fn subtract_ubig(lhs: &BigUint, rhs: &BigUint) -> Arc<Object> {
    Object::box_ubig(lhs + rhs)
}

fn subtract_i8(lhs: i8, rhs: i8) -> Arc<Object> {
    match lhs.checked_sub(rhs) {
        Some(res) => Object::box_i8(res),
        None => subtract_i16(lhs as i16, rhs as i16),
    }
}

fn subtract_i16(lhs: i16, rhs: i16) -> Arc<Object> {
    match lhs.checked_sub(rhs) {
        Some(res) => Object::box_i16(res),
        None => subtract_i32(lhs as i32, rhs as i32),
    }
}

fn subtract_i32(lhs: i32, rhs: i32) -> Arc<Object> {
    match lhs.checked_sub(rhs) {
        Some(res) => Object::box_i32(res),
        None => subtract_i64(lhs as i64, rhs as i64),
    }
}

fn subtract_i64(lhs: i64, rhs: i64) -> Arc<Object> {
    match lhs.checked_sub(rhs) {
        Some(res) => Object::box_i64(res),
        None => subtract_i128(lhs as i128, rhs as i128),
    }
}

fn subtract_i128(lhs: i128, rhs: i128) -> Arc<Object> {
    match lhs.checked_sub(rhs) {
        Some(res) => Object::box_i128(res),
        None => subtract_ibig(&lhs.into(), &rhs.into()),
    }
}

fn subtract_ibig(lhs: &BigInt, rhs: &BigInt) -> Arc<Object> {
    Object::box_ibig(lhs - rhs)
}

fn subtract_f32(lhs: f32, rhs: f32) -> Arc<Object> {
    Object::box_f32(lhs - rhs)
}

fn subtract_f64(lhs: f64, rhs: f64) -> Arc<Object> {
    Object::box_f64(lhs - rhs)
}

fn subtract_fbig(lhs: &BigFraction, rhs: &BigFraction) -> Arc<Object> {
    Object::box_fbig(lhs - rhs)
}

impl Runtime for () {
    fn print_panic(message: String, call_stack: CallStack) {
        panic!("{}\n{:#?}", message, call_stack)
    }
}

#[allow(non_camel_case_types)]
#[derive(Debug, Clone, PartialEq)]
pub enum NativeMethod {
    Number_plus,
    Number_minus,
    Object_eq,
    Object_asString,
}

impl<'a> From<&'a str> for NativeMethod {
    fn from(name: &'a str) -> Self {
        use NativeMethod::*;
        match name {
            "Loa/Number#+" => Number_plus,
            "Loa/Number#-" => Number_minus,
            "Loa/Object#==" => Object_eq,
            "Loa/Object#asString" => Object_asString,
            n => panic!("unknown native method: {}", n),
        }
    }
}

impl std::fmt::Display for NativeMethod {
    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
        use NativeMethod::*;
        match self {
            Number_plus => write!(f, "Loa/Number#+"),
            Number_minus => write!(f, "Loa/Number#-"),
            Object_eq => write!(f, "Loa/Object#=="),
            Object_asString => write!(f, "Loa/Object#asString"),
        }
    }
}