javascript - T not assignable to Readonly<T> -


ts version 2.4.2

i'm making react component decorator enhances component custom props. want maintain types of component. minimal working example:

import * react 'react';  type required = { kek: string }; type props<t> = required & t;  function decorator<t>(component: react.componenttype<props<t>>): react.componenttype<t> {   class wrapper extends react.component<props<t>, {}> {     props: props<t>;      render() {       // sfc , component conflict       return react.createelement(component any, this.props);     }   }    return wrapper; }

however, ts complains on wrapper class that:

error:(7, 9) ts2415:class 'wrapper' incorrectly extends base class 'component<props<t>, {}>'.   types of property 'props' incompatible.     type 'props<t>' not assignable type 'readonly<{ children?: reactnode; }> & readonly<props<t>>'.       type 'props<t>' not assignable type 'readonly<props<t>>'.

how should type decorator takes component takes props , returns component takes props, minus props used wrapper component?


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