7b02c635b6
* Report generic rest parameters as unreliable variance positions * Add example from discussion on #30301
22 lines
625 B
TypeScript
22 lines
625 B
TypeScript
// @strict: true
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type MyTupleItem = {};
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type MyTuple = [MyTupleItem, ...MyTupleItem[]];
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type GenericFunction<T extends MyTuple> = (...fromArgs: T) => void;
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class GenericClass<T extends MyTuple> {
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from: GenericFunction<T> | undefined;
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}
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function createClass<T extends MyTuple>(f: GenericFunction<T>): GenericClass<T> {
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return new GenericClass<T>(/* ... use f */);
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}
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function consumeClass(c: GenericClass<[string, boolean]>) { }
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// should work
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consumeClass(createClass(str => console.log(str.length)));
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// should work
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consumeClass(createClass((str, _unused_num) => console.log(str.length)));
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