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tests/cases/compiler/jsxElementType.tsx(34,2): error TS2741: Property 'title' is missing in type '{}' but required in type '{ title: string; }'.
tests/cases/compiler/jsxElementType.tsx(36,16): error TS2322: Type '{ excessProp: true; }' is not assignable to type 'IntrinsicAttributes & { title: string; }'.
Property 'excessProp' does not exist on type 'IntrinsicAttributes & { title: string; }'.
tests/cases/compiler/jsxElementType.tsx(40,2): error TS2741: Property 'title' is missing in type '{}' but required in type '{ title: string; }'.
tests/cases/compiler/jsxElementType.tsx(42,15): error TS2322: Type '{ excessProp: true; }' is not assignable to type 'IntrinsicAttributes & { title: string; }'.
Property 'excessProp' does not exist on type 'IntrinsicAttributes & { title: string; }'.
tests/cases/compiler/jsxElementType.tsx(46,2): error TS2741: Property 'title' is missing in type '{}' but required in type '{ title: string; }'.
tests/cases/compiler/jsxElementType.tsx(48,15): error TS2322: Type '{ excessProp: true; }' is not assignable to type 'IntrinsicAttributes & { title: string; }'.
Property 'excessProp' does not exist on type 'IntrinsicAttributes & { title: string; }'.
tests/cases/compiler/jsxElementType.tsx(52,2): error TS2741: Property 'title' is missing in type '{}' but required in type '{ title: string; }'.
tests/cases/compiler/jsxElementType.tsx(54,14): error TS2322: Type '{ excessProp: true; }' is not assignable to type 'IntrinsicAttributes & { title: string; }'.
Property 'excessProp' does not exist on type 'IntrinsicAttributes & { title: string; }'.
tests/cases/compiler/jsxElementType.tsx(59,2): error TS2741: Property 'title' is missing in type '{}' but required in type '{ title: string; }'.
tests/cases/compiler/jsxElementType.tsx(61,16): error TS2322: Type '{ excessProp: true; }' is not assignable to type 'IntrinsicAttributes & { title: string; }'.
Property 'excessProp' does not exist on type 'IntrinsicAttributes & { title: string; }'.
tests/cases/compiler/jsxElementType.tsx(70,2): error TS2769: No overload matches this call.
Overload 1 of 2, '(props: Readonly<{ title: string; }>): RenderStringClass', gave the following error.
Property 'title' is missing in type '{}' but required in type 'Readonly<{ title: string; }>'.
Overload 2 of 2, '(props: { title: string; }, context?: any): RenderStringClass', gave the following error.
Property 'title' is missing in type '{}' but required in type 'Readonly<{ title: string; }>'.
tests/cases/compiler/jsxElementType.tsx(72,20): error TS2769: No overload matches this call.
Overload 1 of 2, '(props: Readonly<{ title: string; }>): RenderStringClass', gave the following error.
Type '{ excessProp: true; }' is not assignable to type 'IntrinsicAttributes & IntrinsicClassAttributes<RenderStringClass> & Readonly<{ children?: ReactNode; }> & Readonly<{ title: string; }>'.
Property 'excessProp' does not exist on type 'IntrinsicAttributes & IntrinsicClassAttributes<RenderStringClass> & Readonly<{ children?: ReactNode; }> & Readonly<{ title: string; }>'.
Overload 2 of 2, '(props: { title: string; }, context?: any): RenderStringClass', gave the following error.
Type '{ excessProp: true; }' is not assignable to type 'IntrinsicAttributes & IntrinsicClassAttributes<RenderStringClass> & Readonly<{ children?: ReactNode; }> & Readonly<{ title: string; }>'.
Property 'excessProp' does not exist on type 'IntrinsicAttributes & IntrinsicClassAttributes<RenderStringClass> & Readonly<{ children?: ReactNode; }> & Readonly<{ title: string; }>'.
tests/cases/compiler/jsxElementType.tsx(78,1): error TS2339: Property 'boop' does not exist on type 'JSX.IntrinsicElements'.
tests/cases/compiler/jsxElementType.tsx(79,1): error TS2339: Property 'my-undeclared-custom-element' does not exist on type 'JSX.IntrinsicElements'.
tests/cases/compiler/jsxElementType.tsx(91,2): error TS2786: 'ReactNativeFlatList' cannot be used as a JSX component.
Its type '(props: {}, ref: ForwardedRef<typeof ReactNativeFlatList>) => null' is not a valid JSX element type.
Type '(props: {}, ref: ForwardedRef<typeof ReactNativeFlatList>) => null' is not assignable to type '(props: any) => React18ReactNode'.
Target signature provides too few arguments. Expected 2 or more, but got 1.
tests/cases/compiler/jsxElementType.tsx(95,11): error TS2322: Type '{}' is not assignable to type 'LibraryManagedAttributes<T, {}>'.
tests/cases/compiler/jsxElementType.tsx(98,2): error TS2304: Cannot find name 'Unresolved'.
tests/cases/compiler/jsxElementType.tsx(99,2): error TS2304: Cannot find name 'Unresolved'.
tests/cases/compiler/jsxElementType.tsx(110,6): error TS2322: Type '{ b: string; }' is not assignable to type '{ a: string; }'.
Property 'b' does not exist on type '{ a: string; }'.
tests/cases/compiler/jsxElementType.tsx(111,19): error TS2322: Type '{ a: string; b: string; }' is not assignable to type '{ a: string; }'.
Property 'b' does not exist on type '{ a: string; }'.
==== tests/cases/compiler/jsxElementType.tsx (20 errors) ====
/// <reference path="/.lib/react16.d.ts" />
import * as React from "react";
type React18ReactFragment = ReadonlyArray<React18ReactNode>;
type React18ReactNode =
| React.ReactElement<any>
| string
| number
| React18ReactFragment
| React.ReactPortal
| boolean
| null
| undefined
| Promise<React18ReactNode>;
// // React.JSXElementConstructor but it now can return React nodes from function components.
type NewReactJSXElementConstructor<P> =
| ((props: P) => React18ReactNode)
| (new (props: P) => React.Component<P, any>);
declare global {
namespace JSX {
type ElementType = string | NewReactJSXElementConstructor<any>;
interface IntrinsicElements {
['my-custom-element']: React.DOMAttributes<unknown>;
}
}
}
let Component: NewReactJSXElementConstructor<{ title: string }>;
const RenderElement = ({ title }: { title: string }) => <div>{title}</div>;
Component = RenderElement;
<RenderElement />;
~~~~~~~~~~~~~
!!! error TS2741: Property 'title' is missing in type '{}' but required in type '{ title: string; }'.
!!! related TS2728 tests/cases/compiler/jsxElementType.tsx:32:37: 'title' is declared here.
<RenderElement title="react" />;
<RenderElement excessProp />;
~~~~~~~~~~
!!! error TS2322: Type '{ excessProp: true; }' is not assignable to type 'IntrinsicAttributes & { title: string; }'.
!!! error TS2322: Property 'excessProp' does not exist on type 'IntrinsicAttributes & { title: string; }'.
const RenderString = ({ title }: { title: string }) => title;
Component = RenderString;
<RenderString />;
~~~~~~~~~~~~
!!! error TS2741: Property 'title' is missing in type '{}' but required in type '{ title: string; }'.
!!! related TS2728 tests/cases/compiler/jsxElementType.tsx:38:36: 'title' is declared here.
<RenderString title="react" />;
<RenderString excessProp />;
~~~~~~~~~~
!!! error TS2322: Type '{ excessProp: true; }' is not assignable to type 'IntrinsicAttributes & { title: string; }'.
!!! error TS2322: Property 'excessProp' does not exist on type 'IntrinsicAttributes & { title: string; }'.
const RenderNumber = ({ title }: { title: string }) => title.length;
Component = RenderNumber;
<RenderNumber />;
~~~~~~~~~~~~
!!! error TS2741: Property 'title' is missing in type '{}' but required in type '{ title: string; }'.
!!! related TS2728 tests/cases/compiler/jsxElementType.tsx:44:36: 'title' is declared here.
<RenderNumber title="react" />;
<RenderNumber excessProp />;
~~~~~~~~~~
!!! error TS2322: Type '{ excessProp: true; }' is not assignable to type 'IntrinsicAttributes & { title: string; }'.
!!! error TS2322: Property 'excessProp' does not exist on type 'IntrinsicAttributes & { title: string; }'.
const RenderArray = ({ title }: { title: string }) => [title];
Component = RenderArray;
<RenderArray />;
~~~~~~~~~~~
!!! error TS2741: Property 'title' is missing in type '{}' but required in type '{ title: string; }'.
!!! related TS2728 tests/cases/compiler/jsxElementType.tsx:50:35: 'title' is declared here.
<RenderArray title="react" />;
<RenderArray excessProp />;
~~~~~~~~~~
!!! error TS2322: Type '{ excessProp: true; }' is not assignable to type 'IntrinsicAttributes & { title: string; }'.
!!! error TS2322: Property 'excessProp' does not exist on type 'IntrinsicAttributes & { title: string; }'.
// React Server Component
const RenderPromise = async ({ title }: { title: string }) => "react";
Component = RenderPromise;
<RenderPromise />;
~~~~~~~~~~~~~
!!! error TS2741: Property 'title' is missing in type '{}' but required in type '{ title: string; }'.
!!! related TS2728 tests/cases/compiler/jsxElementType.tsx:57:43: 'title' is declared here.
<RenderPromise title="react" />;
<RenderPromise excessProp />;
~~~~~~~~~~
!!! error TS2322: Type '{ excessProp: true; }' is not assignable to type 'IntrinsicAttributes & { title: string; }'.
!!! error TS2322: Property 'excessProp' does not exist on type 'IntrinsicAttributes & { title: string; }'.
// Class components still work
class RenderStringClass extends React.Component<{ title: string }> {
render() {
return this.props.title;
}
}
Component = RenderStringClass;
<RenderStringClass />;
~~~~~~~~~~~~~~~~~
!!! error TS2769: No overload matches this call.
!!! error TS2769: Overload 1 of 2, '(props: Readonly<{ title: string; }>): RenderStringClass', gave the following error.
!!! error TS2769: Property 'title' is missing in type '{}' but required in type 'Readonly<{ title: string; }>'.
!!! error TS2769: Overload 2 of 2, '(props: { title: string; }, context?: any): RenderStringClass', gave the following error.
!!! error TS2769: Property 'title' is missing in type '{}' but required in type 'Readonly<{ title: string; }>'.
!!! related TS2728 tests/cases/compiler/jsxElementType.tsx:64:51: 'title' is declared here.
!!! related TS2728 tests/cases/compiler/jsxElementType.tsx:64:51: 'title' is declared here.
<RenderStringClass title="react" />;
<RenderStringClass excessProp />;
~~~~~~~~~~
!!! error TS2769: No overload matches this call.
!!! error TS2769: Overload 1 of 2, '(props: Readonly<{ title: string; }>): RenderStringClass', gave the following error.
!!! error TS2769: Type '{ excessProp: true; }' is not assignable to type 'IntrinsicAttributes & IntrinsicClassAttributes<RenderStringClass> & Readonly<{ children?: ReactNode; }> & Readonly<{ title: string; }>'.
!!! error TS2769: Property 'excessProp' does not exist on type 'IntrinsicAttributes & IntrinsicClassAttributes<RenderStringClass> & Readonly<{ children?: ReactNode; }> & Readonly<{ title: string; }>'.
!!! error TS2769: Overload 2 of 2, '(props: { title: string; }, context?: any): RenderStringClass', gave the following error.
!!! error TS2769: Type '{ excessProp: true; }' is not assignable to type 'IntrinsicAttributes & IntrinsicClassAttributes<RenderStringClass> & Readonly<{ children?: ReactNode; }> & Readonly<{ title: string; }>'.
!!! error TS2769: Property 'excessProp' does not exist on type 'IntrinsicAttributes & IntrinsicClassAttributes<RenderStringClass> & Readonly<{ children?: ReactNode; }> & Readonly<{ title: string; }>'.
// Host element types still work
<div />;
<my-custom-element />;
// Undeclared host element types are still rejected
<boop />;
~~~~~~~~
!!! error TS2339: Property 'boop' does not exist on type 'JSX.IntrinsicElements'.
<my-undeclared-custom-element />;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2339: Property 'my-undeclared-custom-element' does not exist on type 'JSX.IntrinsicElements'.
// Highlighting various ecosystem compat issues
// react-native-gesture-handler
// https://github.com/software-mansion/react-native-gesture-handler/blob/79017e5e7cc2e82e6467851f870920ff836ee04f/src/components/GestureComponents.tsx#L139-L146
interface ReactNativeFlatListProps<Item> {}
function ReactNativeFlatList(
props: {},
ref: React.ForwardedRef<typeof ReactNativeFlatList>
) {
return null;
}
<ReactNativeFlatList />;
~~~~~~~~~~~~~~~~~~~
!!! error TS2786: 'ReactNativeFlatList' cannot be used as a JSX component.
!!! error TS2786: Its type '(props: {}, ref: ForwardedRef<typeof ReactNativeFlatList>) => null' is not a valid JSX element type.
!!! error TS2786: Type '(props: {}, ref: ForwardedRef<typeof ReactNativeFlatList>) => null' is not assignable to type '(props: any) => React18ReactNode'.
!!! error TS2786: Target signature provides too few arguments. Expected 2 or more, but got 1.
// testing higher-order component compat
function f1<T extends (props: {}) => React.ReactElement<any>>(Component: T) {
return <Component />;
~~~~~~~~~
!!! error TS2322: Type '{}' is not assignable to type 'LibraryManagedAttributes<T, {}>'.
}
<Unresolved />;
~~~~~~~~~~
!!! error TS2304: Cannot find name 'Unresolved'.
<Unresolved foo="abc" />;
~~~~~~~~~~
!!! error TS2304: Cannot find name 'Unresolved'.
declare global {
namespace JSX {
interface IntrinsicElements {
['a:b']: { a: string };
}
}
}
<a:b a="accepted" />;
<a:b b="rejected" />;
~
!!! error TS2322: Type '{ b: string; }' is not assignable to type '{ a: string; }'.
!!! error TS2322: Property 'b' does not exist on type '{ a: string; }'.
<a:b a="accepted" b="rejected" />;
~
!!! error TS2322: Type '{ a: string; b: string; }' is not assignable to type '{ a: string; }'.
!!! error TS2322: Property 'b' does not exist on type '{ a: string; }'.
|
