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1describe "break with multiple values", ->
2 it "should break with multiple values from numeric for loop", ->
3 x, y = for i = 1, 10
4 if i > 5
5 break i, i * 2
6 assert.same x, 6
7 assert.same y, 12
8
9 it "should break with multiple values from ipairs iterator", ->
10 x, y = for _, v in ipairs [1, 2, 3]
11 if v > 2
12 break v, v * 2
13 assert.same x, 3
14 assert.same y, 6
15
16 it "should break with multiple values from destructuring iterator", ->
17 x, y = for [a, b] in *{[10, 20], [30, 40], [40, 50]}
18 if b > 20
19 break a, b * 2
20 assert.same x, 30
21 assert.same y, 80
22
23 it "should break with multiple values from do block", ->
24 x, y = do
25 break 1, 2
26 assert.same x, 1
27 assert.same y, 2
28
29 it "should break with multiple values from with statement", ->
30 x = with abc: 99, flag: true
31 break .abc if .flag
32 break 0
33 assert.same x, 99
34
35 it "should work with continue in comprehension", ->
36 input = {1,2,3,4,5,6}
37 output = for x in *input
38 continue if x % 2 == 1
39 x
40 assert.same output, {2, 4, 6}
41
42 it "should break in comprehension with index", ->
43 f1 = ->
44 tb = [true, true, false]
45 index = for i = 1, #tb
46 break i if tb[i]
47 index
48 assert.same f1!, 1
49
50 it "should work with continue in indexed comprehension", ->
51 input = {1,2,3,4,5,6}
52 output = for i = 1, #input
53 x = input[i]
54 continue if x % 2 == 1
55 x
56 assert.same output, {2, 4, 6}
57
58 it "should break with multiple values in simple for loop", ->
59 a, b = for i = 1, 5
60 if i == 2
61 break i, i * 10
62 assert.same a, 2
63 assert.same b, 20
64
65 it "should break with expression values", ->
66 sum, product = for i = 1, 3
67 if i == 2
68 break i + i, i * i
69 assert.same sum, 4
70 assert.same product, 4
71
72 it "should break with table iteration values", ->
73 key, value = for k, v in pairs {a: 1, b: 2, c: 3}
74 if k == "b"
75 break k, v * 10
76 assert.same key, "b"
77 assert.same value, 20
78
79 it "should break in for loop with multiple values", ->
80 count, total = for i = 1, 10
81 if i == 5
82 break i, i * 10
83 assert.same count, 5
84 assert.same total, 50
85
86 it "should break in repeat loop with multiple values", ->
87 i = 1
88 i, doubled = repeat
89 if i > 3
90 break i, i * 100
91 i += 1
92 until false
93 assert.same i, 4
94 assert.same doubled, 400
95
96 it "should work with with? and break", ->
97 dummy = (x) -> x
98 result = with? value: 1
99 dummy with? nil
100 break .value
101 break .value
102 assert.same result, 1
103
104 it "should break with multiple values in do block", ->
105 x, y = do
106 break 10, 30
107 assert.same x, 10
108 assert.same y, 30
109
110 it "should break with string and number values", ->
111 name, age = for k, v in pairs {name: "Alice", age: 30, city: "NYC"}
112 if k == "name"
113 break v, 25
114 assert.same name, "Alice"
115 assert.same age, 25
116
117 it "should break with nil values", ->
118 a, b, c = for i = 1, 5
119 if i == 3
120 break i, nil, "test"
121 assert.same a, 3
122 assert.same b, nil
123 assert.same c, "test"
124
125 it "should break with boolean values", ->
126 found, value = for i = 1, 5
127 if i == 3
128 break true, "found"
129 assert.is_true found
130 assert.same value, "found"
131
132 it "should break with function call values", ->
133 fn = -> 42
134 val, dbl = for i = 1, 3
135 if i == 2
136 break fn!, fn! * 2
137 assert.same val, 42
138 assert.same dbl, 84
139
140 it "should break with multiple values for destructuring", ->
141 x, y = for [a, b] in *{[1, 2], [3, 4], [5, 6]}
142 if a > 2
143 break b, a
144 assert.same x, 4
145 assert.same y, 3
146
147 it "should break in switch-like logic", ->
148 status, message = for i = 1, 3
149 do
150 if i == 1
151 break "ok", "one"
152 if i == 2
153 break "ok", "two"
154 assert.same status, "ok"
155 assert.same message, "one"
156
157 it "should handle multiple break conditions", ->
158 idx, val = for i = 1, 10
159 if i == 3
160 break i, "first"
161 if i == 7
162 break i, "second"
163 assert.same idx, 3
164 assert.same val, "first"
165
166 it "should break with computed values", ->
167 sum, count = for i = 1, 5
168 if i == 4
169 break 10 + i, i
170 assert.same sum, 14
171 assert.same count, 4
172
173 it "should break with table literal", ->
174 name, data = for i = 1, 3
175 if i == 2
176 break "item", {value: i, index: i}
177 assert.same name, "item"
178 assert.same data.value, 2
179 assert.same data.index, 2
180
181 it "should break with string concatenation", ->
182 prefix, suffix = for i = 1, 3
183 if i == 2
184 break "pre", "fix"
185 assert.same prefix .. suffix, "prefix"
186
187 it "should break with continue in loop", ->
188 x, y = for i = 1, 5
189 if i == 3
190 break i, i * 2
191 assert.same x, 3
192 assert.same y, 6
193
194 it "should break with ternary-like expression", ->
195 result, is_valid = for i = 1, 5
196 if i == 3
197 break i, i > 2
198 assert.same result, 3
199 assert.is_true is_valid
200
201 it "should break with arithmetic operations", ->
202 sum, diff = for i = 1, 5
203 if i == 3
204 break i + 10, 10 - i
205 assert.same sum, 13
206 assert.same diff, 7
207
208 it "should break with table access", ->
209 data = {a: 1, b: 2}
210 first, second = for i = 1, 3
211 if i == 2
212 break data.a, data.b
213 assert.same first, 1
214 assert.same second, 2
215
216 it "should break with literal values", ->
217 a, b = for i = 1, 3
218 if i == 2
219 break "x", "y"
220 assert.same a, "x"
221 assert.same b, "y"
222
223 it "should break with conditional expression", ->
224 status, msg = for i = 1, 5
225 if i == 3
226 break "ok", "done"
227 assert.same status, "ok"
228 assert.same msg, "done"
229
230 it "should handle multiple breaks in sequence", ->
231 val1, val2 = for i = 1, 10
232 if i == 3
233 break i, i * 2
234 if i == 5
235 break i, i * 3
236 if i == 7
237 break i, i * 4
238 assert.same val1, 3
239 assert.same val2, 6
240
241 it "should handle multiple breaks in switch", ->
242 val1, val2 = for i = 1, 10 do switch i
243 when 3 then break i, i * 2
244 when 5 then break i, i * 3
245 when 7 then break i, i * 4
246 assert.same val1, 3
247 assert.same val2, 6
248
249 it "should break with nil and default", ->
250 a, b = for i = 1, 5
251 if i == 2
252 break i, nil
253 assert.same a, 2
254 assert.is_nil b
255
256 it "should break with false and value", ->
257 found, data = for i = 1, 5
258 if i == 3
259 break false, "item"
260 assert.is_false found
261 assert.same data, "item"
262
263 it "should break with three values", ->
264 a, b, c = for i = 1, 5
265 if i == 3
266 break i, i * 2, i * 3
267 assert.same a, 3
268 assert.same b, 6
269 assert.same c, 9
270
271 it "should break in while loop", ->
272 i = 1
273 count, total = while i < 10
274 if i == 5
275 break i, i * 10
276 i += 1
277 assert.same count, 5
278 assert.same total, 50
279
280 it "should handle early break in loop", ->
281 a, b = for i = 1, 100
282 if i == 1
283 break "first", "second"
284 assert.same a, "first"
285 assert.same b, "second"
286
287 it "should break with multiple function calls", ->
288 add = (a, b) -> a + b
289 mul = (a, b) -> a * b
290 sum, product = for i = 1, 5
291 if i == 3
292 break add(i, i), mul(i, i)
293 assert.same sum, 6
294 assert.same product, 9
295
296 it "should work with chained comparisons", ->
297 x, y = for i = 1, 10
298 if 3 < i and i < 7
299 break i, i * i
300 assert.same x, 4
301 assert.same y, 16
302
303 it "should work with logical expressions", ->
304 flag, value = for i = 1, 5
305 if i > 2 and i < 4
306 break true, i
307 assert.is_true flag
308 assert.same value, 3
309
310 it "should work with table unpacking in break", ->
311 tbl = {10, 20}
312 a, b = for i = 1, 5
313 if i == 3
314 break tbl[1], tbl[2]
315 assert.same a, 10
316 assert.same b, 20
317
318 it "should work with nested conditions", ->
319 result, flag = for i = 1, 10
320 if i > 2
321 if i < 5
322 if i == 3
323 break i, true
324 assert.same result, 3
325 assert.is_true flag
326
327 it "should work with class methods", ->
328 class MyClass
329 find_pair: =>
330 result = [
331 for i = 1, 10
332 if i == 5
333 break i, i * 10
334 ]
335 result
336 obj = MyClass!
337 result = obj\find_pair!
338 assert.same result[1], 5
339 assert.same result[2], 50
340
341 it "should work with string interpolation", ->
342 a, b = for i = 1, 5
343 if i == 3
344 break "item-#{i}", "value-#{i * 10}"
345 assert.same a, "item-3"
346 assert.same b, "value-30"
347
348 it "should work with try-catch", ->
349 try
350 result, error_msg = for i = 1, 5
351 if i == 3
352 break i, "found"
353 assert.same result, 3
354 assert.same error_msg, "found"
355 catch e
356 error "Should not reach here"
357
358 it "should work with const attribute", ->
359 const MAX = 10
360 first, second = for i = 1, MAX
361 if i == 5
362 break i, i * 2
363 assert.same first, 5
364 assert.same second, 10
365
366 it "should work with backcall style processing", ->
367 a, b = for i = 1, 5
368 if i == 3
369 break i, i * 2
370 assert.same a, 3
371 assert.same b, 6
372
373 it "should work with varargs", ->
374 process = (...) ->
375 items = {...}
376 a, b = for i = 1, #items
377 if items[i] == 3
378 break items[i], items[i] * 2
379 a, b
380 result1, result2 = process 1, 2, 3, 4, 5
381 assert.same result1, 3
382 assert.same result2, 6
383
384 it "should work with table slicing", ->
385 matrix = [ [1, 2, 3], [4, 5, 6], [7, 8, 9]]
386 sub, val = for i = 1, #matrix
387 if matrix[i][1] == 4
388 break matrix[i][1], matrix[i][2]
389 assert.same sub, 4
390 assert.same val, 5
391
392 it "should work with chaining comparison", ->
393 result, flag = for i = 1, 10
394 if 1 < i <= 5 < 10
395 break i, i * i
396 assert.same result, 2
397 assert.same flag, 4
398
399 it "should work with implicit return", ->
400 fn = ->
401 result = [
402 for i = 1, 5
403 if i == 3
404 break i, i * 10
405 ]
406 result
407 result = fn!
408 assert.same result[1], 3
409 assert.same result[2], 30
410
411 it "should work with nil coalescing", ->
412 data = nil
413 first, second = for i = 1, 5
414 if i == 3
415 break i, i * 2
416 assert.same first, 3
417 assert.same second, 6
418
419 it "should work with table literal shorthand", ->
420 a, b = for i = 1, 5
421 if i == 2
422 break "first", "second"
423 assert.same a, "first"
424 assert.same b, "second"
425
426 it "should work with method calls", ->
427 obj = {
428 start: 10
429 end_val: 20
430 find: =>
431 result = [
432 for i = 1, 10
433 if i == 4
434 break @start + i, @end_val + i
435 ]
436 result
437 }
438 result = obj\find!
439 assert.same result[1], 14
440 assert.same result[2], 24
441
442 it "should work with do-end assignment", ->
443 a, b = do
444 x, y = for i = 1, 5
445 if i == 2
446 break i, i * 5
447 x, y
448 assert.same a, 2
449 assert.same b, 10
450
451 it "should work with unary operators", ->
452 result, negated = for i = 1, 5
453 if i == 3
454 break i, -i
455 assert.same result, 3
456 assert.same negated, -3
457
458 it "should work with bitwise operators", ->
459 a, b = for i = 1, 10
460 if i == 4
461 break i ~ 1, i | 8
462 assert.same a, 5
463 assert.same b, 12
464
465 it "should work with modulo operation", ->
466 quotient, remainder = for i = 1, 10
467 if i == 7
468 break i // 3, i % 3
469 assert.same quotient, 2
470 assert.same remainder, 1
471
472 it "should work with exponentiation", ->
473 base, squared = for i = 1, 5
474 if i == 3
475 break i, i ^ 2
476 assert.same base, 3
477 assert.same squared, 9
478
479 it "should work with length operator", ->
480 str, len = for i = 1, 5
481 if i == 3
482 break "hello", #"hello"
483 assert.same str, "hello"
484 assert.same len, 5
485
486 it "should work with table concatenation", ->
487 part1, part2 = for i = 1, 5
488 if i == 2
489 break {1, 2}, {3, 4}
490 assert.same part1, {1, 2}
491 assert.same part2, {3, 4}
492
493 it "should work with nested do blocks", ->
494 result = do
495 temp = {
496 for i = 1, 5
497 do
498 if i == 3
499 break i, i * 2
500 }
501 temp[1] + temp[2]
502 assert.same result, 9
503
504 it "should work with table.insert", ->
505 results = {}
506 item, index = for i = 1, 5
507 if i == 3
508 break i, i * 2
509 table.insert results, i
510 assert.same results, {1, 2}
511
512 it "should break with multiple values in nested for loops", ->
513 x, y = for i = 1, 5
514 a, b = for j = 1, 5
515 if i == 2 and j == 3
516 break i, j
517 break a, b if a
518 assert.same x, 2
519 assert.same y, 3
520
521 it "should break with multiple values in for nested while", ->
522 x, y = for i = 1, 10
523 j = 1
524 a, b = while j < 10
525 if i == 3 and j == 5
526 break i, j
527 j += 1
528 break a, b if a and b
529 assert.same x, 3
530 assert.same y, 5
531
532 it "should break with multiple values in while nested for", ->
533 i = 1
534 x, y = while i < 10
535 a, b = for j = 1, 10
536 if i == 3 and j == 4
537 break i, j
538 i += 1
539 break a, b if a and b
540 assert.same x, 3
541 assert.same y, 4
542
543 it "should break with multiple values in for nested repeat", ->
544 x, y = for i = 1, 5
545 j = 1
546 a, b = repeat
547 if i == 2 and j == 3
548 break i, j
549 j += 1
550 until j > 10
551 break a, b if a and b
552 assert.same x, 2
553 assert.same y, 3
554
555 it "should break with multiple values in repeat nested for", ->
556 i = 1
557 x, y = repeat
558 a, b = for j = 1, 5
559 if i == 3 and j == 2
560 break i, j
561 i += 1
562 break a, b if a and b
563 until i > 10
564 assert.same x, 3
565 assert.same y, 2
566
567 it "should break with multiple values in do nested for", ->
568 x, y = do
569 a1, b1 = for i = 1, 5
570 a, b = for j = 1, 5
571 if i == 2 and j == 3
572 break i, j
573 break a, b if a and b
574 break a1, b1
575 assert.same x, 2
576 assert.same y, 3
577
578 it "should break with multiple values in for nested do", ->
579 x, y = for i = 1, 5
580 do
581 if i == 3
582 break i, i * 2
583 assert.same x, 3
584 assert.same y, 6
585
586 it "should break with multiple values in for nested with", ->
587 x, y = for i = 1, 5
588 with value: i, index: i * 2
589 if .value == 3
590 break .value, .index
591 assert.same x, 3
592 assert.same y, 6
593
594 it "should break with a value in with nested for", ->
595 x = with {limit: 5}
596 break for i = 1, .limit
597 if i == 3
598 break i
599 assert.same x, 3
600
601 it "should break with multiple values in three-level nested loops", ->
602 x, y, z = for i = 1, 3
603 a1, a2, a3 = for j = 1, 3
604 b1, b2, b3 = for k = 1, 3
605 if i == 2 and j == 2 and k == 2
606 break i, j, k
607 break b1, b2, b3 if b1
608 break a1, a2, a3 if a1
609 assert.same x, 2
610 assert.same y, 2
611 assert.same z, 2
612
613 it "should break with multiple values in while nested repeat", ->
614 i = 1
615 x, y = while i < 10
616 j = 1
617 a, b = repeat
618 if i == 3 and j == 4
619 break i, j
620 j += 1
621 until j > 10
622 i += 1
623 break a, b if a
624 assert.same x, 3
625 assert.same y, 4
626
627 it "should break with multiple values in repeat nested while", ->
628 i = 1
629 x, y = repeat
630 j = 1
631 a, b = while j < 10
632 if i == 4 and j == 3
633 break i, j
634 j += 1
635 i += 1
636 break a, b if a
637 until i > 10
638 assert.same x, 4
639 assert.same y, 3
640
641 it "should break with multiple values in do nested while", ->
642 i = 1
643 x, y = do
644 a, b = while i < 10
645 if i == 4
646 break i, i * 3
647 i += 1
648 break a, b
649 assert.same x, 4
650 assert.same y, 12
651
652 it "should break with multiple values in while nested do", ->
653 i = 1
654 x, y = while i < 10
655 a, b = do
656 if i == 5
657 break i, i * 4
658 i += 1
659 break a, b if a
660 assert.same x, 5
661 assert.same y, 20
662
663 it "should break with multiple values in do nested repeat", ->
664 i = 1
665 x, y = do
666 a, b = repeat
667 if i == 3
668 break i, i * 5
669 i += 1
670 until i > 10
671 break a, b
672 assert.same x, 3
673 assert.same y, 15
674
675 it "should break with multiple values in repeat nested do", ->
676 i = 1
677 x, y = repeat
678 a, b = do
679 if i == 2
680 break i, i * 6
681 i += 1
682 break a, b if a
683 until i > 10
684 assert.same x, 2
685 assert.same y, 12
686
687 it "should break with multiple values in with nested do", ->
688 x, y = do
689 with value: 10, factor: 3
690 a, b = do
691 if .value > 5
692 break .value, .factor
693 break a, b
694 assert.same x, 10
695 assert.same y, 3
696
697 it "should break with multiple values in do nested with", ->
698 x, y = do
699 with num: 42, text: "test"
700 break .num, .text
701 assert.same x, 42
702 assert.same y, "test"
703
704 it "should break with multiple values in for nested for with different types", ->
705 name, age, active = for i = 1, 5
706 a, b, c = for j = 1, 5
707 if i == 2 and j == 3
708 break "user-#{i}", j * 10, true
709 break a, b, c if a
710 assert.same name, "user-2"
711 assert.same age, 30
712 assert.is_true active
713
714 it "should break with multiple values in with nested for with method calls", ->
715 obj =
716 data: [10, 20, 30, 40]
717 find: =>
718 x, y = for i = 1, #@data
719 if @data[i] == 30
720 break @data[i], i
721 x, y
722 value, index = obj\find!
723 assert.same value, 30
724 assert.same index, 3
725
726 it "should break with multiple values in nested loops with early termination", ->
727 found, idx = for i = 1, 10
728 if i == 1
729 break i, true
730 a, b = for j = 1, 10
731 break i, false if j == 5
732 break a, b if a
733 assert.same found, 1
734 assert.is_true idx
735
736 it "should break with multiple values in nested loops with computed expressions", ->
737 sum, product = for i = 1, 5
738 a, b = for j = 1, 5
739 if i * j == 12
740 break i + j, i * j
741 break a, b if a
742 assert.same sum, 7
743 assert.same product, 12
744
745 it "should mix break and break with values in same for expression", ->
746 x, y = for i = 1, 5
747 if i == 3
748 break i, i * 10
749 if i == 4
750 break
751 assert.same x, 3
752 assert.same y, 30
753
754 it "should return nils when plain break happens before value break", ->
755 x, y = for i = 1, 5
756 if i == 2
757 break
758 if i == 4
759 break i, i * 10
760 assert.is_nil x
761 assert.is_nil y
762
763 it "should mix plain break and value break across nested loops", ->
764 matrix = {
765 {1, -1, 9}
766 {4, 5, 9}
767 }
768 row, col = for r = 1, #matrix
769 a, b = for c = 1, #matrix[r]
770 cell = matrix[r][c]
771 break if cell < 0
772 break r, c if cell == 9
773 break a, b if a
774 assert.same row, 2
775 assert.same col, 3
776
777 it "should mix break and break with values in while expression", ->
778 i = 0
779 x, y = while i < 5
780 i += 1
781 if i == 2
782 break
783 if i == 4
784 break i, i * 2
785 assert.is_nil x
786 assert.is_nil y
787
788 it "should mix break and break with values in do with with block", ->
789 x, y = do
790 with value: 8, stop: false
791 break if .stop
792 break .value, .value * 2
793 assert.same x, 8
794 assert.same y, 16
795
796 it "should fall back to plain break in do with with block", ->
797 x, y = do
798 with value: 8, stop: true
799 break if .stop
800 break .value, .value * 2
801 break
802 assert.is_nil x
803 assert.is_nil y
804
805 it "should mix continue and break with values in for expression", ->
806 x, y = for i = 1, 8
807 continue if i % 3 ~= 0
808 break i, i + 100 if i == 6
809 assert.same x, 6
810 assert.same y, 106
811
812 it "should mix continue and break with values across nested for expressions", ->
813 row, col = for r = 1, 3
814 a, b = for c = 1, 4
815 continue if c < 3
816 break r, c if r == 2 and c == 3
817 continue if not a
818 break a, b
819 assert.same row, 2
820 assert.same col, 3
821
822 it "should mix break continue and value break with plain break winning", ->
823 x, y = for i = 1, 7
824 continue if i < 3
825 if i == 4
826 break
827 if i == 6
828 break i, i * 10
829 assert.is_nil x
830 assert.is_nil y
831
832 it "should mix break continue and value break with value break winning", ->
833 x, y = for i = 1, 9
834 continue if i % 2 == 0
835 if i == 5
836 break i, i * 3
837 if i == 9
838 break
839 assert.same x, 5
840 assert.same y, 15
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