357f715382
* Check combined intersection properties against target index signatures * Add tests * Accept new baselines * Less aggressive check for index signatures * Track intersection membership state for both source and target * Minor fixes
37 lines
872 B
TypeScript
37 lines
872 B
TypeScript
// @strict: true
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type A = { a: string };
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type B = { b: string };
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declare let sa1: { x: A & B };
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declare let sa2: { x: A } & { x: B };
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declare let ta1: { [key: string]: A & B };
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declare let ta2: { [key: string]: A } & { [key: string]: B };
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ta1 = sa1;
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ta1 = sa2;
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ta2 = sa1;
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ta2 = sa2;
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declare let sb1: { x: A } & { y: B };
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declare let tb1: { [key: string]: A };
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tb1 = sb1; // Error
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// Repro from #32484
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type constr<Source, Tgt> = { [K in keyof Source]: string } & Pick<Tgt, Exclude<keyof Tgt, keyof Source>>;
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type s = constr<{}, { [key: string]: { a: string } }>;
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declare const q: s;
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q["asd"].a.substr(1);
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q["asd"].b; // Error
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const d: { [key: string]: {a: string, b: string} } = q; // Error
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// Repro from #32484
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declare let ss: { a: string } & { b: number };
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declare let tt: { [key: string]: string };
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tt = ss; // Error
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