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33 lines
625 B
TypeScript
33 lines
625 B
TypeScript
//@filename: file.tsx
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//@jsx: preserve
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declare module JSX {
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interface Element { }
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interface IntrinsicElements {
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test1: Attribs1;
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test2: Attribs2;
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}
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}
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interface Attribs1 {
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x: string;
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}
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interface Attribs2 {
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toString(): string;
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}
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function make1<T extends {x: string}> (obj: T) {
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return <test1 {...obj} />; // OK
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}
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function make2<T extends {x: number}> (obj: T) {
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return <test1 {...obj} />; // Error (x is number, not string)
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}
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function make3<T extends {y: string}> (obj: T) {
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return <test1 {...obj} />; // Error, missing x
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}
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<test1 {...{}} />; // Error, missing x
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<test2 {...{}} />; // Error, missing toString
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