15 lines
230 B
TypeScript
15 lines
230 B
TypeScript
// @strict: true
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// Repro from #20840
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function function1<T extends 'a' | 'b'>(key: T) {
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switch (key) {
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case 'a':
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key.toLowerCase();
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break;
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default:
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key.toLowerCase();
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break;
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}
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}
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