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18 lines
219 B
TypeScript
18 lines
219 B
TypeScript
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// @strict: true
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// Repro from #42404
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interface Y {
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foo<T>(this: T, arg: keyof T): void;
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a: number;
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b: string;
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}
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declare const value: Y | undefined;
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if (value) {
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value?.foo("a");
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}
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value?.foo("a");
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