12 lines
368 B
JavaScript
12 lines
368 B
JavaScript
class A<X> { }
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new A; // OK, implicitly inferred type args
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class B extends A { } // OK, same as above
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function foo(b): A<any> { // ok but unsafe, caller may assume any type arg
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return b ? (new A: A<number>): (new A: A<string>);
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}
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function bar(): A<*> { // error, * can't be {} and {x: string} at the same time
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return (new A: A<{}>) || (new A: A<{x: string}>);
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}
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