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Tianlan ZhouandGitHub
ae2e1de9f3
Co-authored-by: Nicolò Ribaudo <[email protected]> Fixes https://github.com/babel/babel/issues/15154 Fixes https://github.com/babel/babel/issues/15168
23 lines
339 B
JavaScript
23 lines
339 B
JavaScript
let gets = 0;
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let it = {
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[Symbol.iterator]: () => ({
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get next() {
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gets++;
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let i = 0;
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return () => ({ done: false, value: i++ });
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},
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}),
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};
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let [] = it;
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expect(gets).toBe(1);
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let [a] = it;
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expect(gets).toBe(2);
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expect(a).toBe(0);
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let [b, c] = it;
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expect(gets).toBe(3);
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expect(b).toBe(0);
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expect(c).toBe(1);
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