9 lines
264 B
TypeScript
9 lines
264 B
TypeScript
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// @strict: true
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declare function foo(p: string): void;
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function fn<T extends string | undefined, U extends string>(one: T, two: U) {
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let three = Boolean() ? one : two;
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foo(one!);
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foo(two!);
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foo(three!); // this line is the important one
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}
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