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tests/cases/conformance/jsx/file.tsx(21,16): error TS2606: Property 'x' of JSX spread attribute is not assignable to target property.
Type 'number' is not assignable to type 'string'.
tests/cases/conformance/jsx/file.tsx(25,9): error TS2324: Property 'x' is missing in type 'Attribs1'.
tests/cases/conformance/jsx/file.tsx(29,1): error TS2324: Property 'x' is missing in type 'Attribs1'.
tests/cases/conformance/jsx/file.tsx(30,1): error TS2324: Property 'toString' is missing in type 'Attribs2'.
==== tests/cases/conformance/jsx/file.tsx (4 errors) ====
declare module JSX {
interface Element { }
interface IntrinsicElements {
test1: Attribs1;
test2: Attribs2;
}
}
interface Attribs1 {
x: string;
}
interface Attribs2 {
toString(): string;
}
function make1<T extends {x: string}> (obj: T) {
return <test1 {...obj} />; // OK
}
function make2<T extends {x: number}> (obj: T) {
return <test1 {...obj} />; // Error (x is number, not string)
~~~~~~~~
!!! error TS2606: Property 'x' of JSX spread attribute is not assignable to target property.
!!! error TS2606: Type 'number' is not assignable to type 'string'.
}
function make3<T extends {y: string}> (obj: T) {
return <test1 {...obj} />; // Error, missing x
~~~~~~~~~~~~~~~~~~
!!! error TS2324: Property 'x' is missing in type 'Attribs1'.
}
<test1 {...{}} />; // Error, missing x
~~~~~~~~~~~~~~~~~
!!! error TS2324: Property 'x' is missing in type 'Attribs1'.
<test2 {...{}} />; // Error, missing toString
~~~~~~~~~~~~~~~~~
!!! error TS2324: Property 'toString' is missing in type 'Attribs2'.
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