40a2eb2b4b
* Stop symbol based filtering in couldContainTypeVariables * Unify couldContainTypeVariables and the similar check done during instantiation
28 lines
770 B
TypeScript
28 lines
770 B
TypeScript
declare const fA: <T>() => { v: T };
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const fB = <T>() => {
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return { v: '' as any as T };
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};
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const fC = <T>() => {
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return {} as any as { v: T };
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};
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// Hover display is identical on all of these
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type TA = typeof fA;
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type TB = typeof fB;
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type TC = typeof fC;
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type TL = <T>() => { v: T };
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declare function accA(x: TA): void;
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declare function accB(x: TB): void;
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declare function accC(x: TC): void;
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declare function accL(x: TL): void;
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// These should all be OK, every type is identical
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accA(fA); accA(fB); accA(fC);
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// ~~ previously an error
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accB(fA); accB(fB); accB(fC);
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// OK
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accC(fA); accC(fB); accC(fC);
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// ~~ previously an error
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accL(fA); accL(fB); accL(fC);
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// ~~ previously an error
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