Typescript使用泛型参数/返回类型实现无状态函数

我能够在TS 2.3中做到这一点.关键是对该组件的"内部"和"外部"使用2种类型.

interface IProps {
    value: V;
    doSomething(val: V): void;
}

// type "inside" component
function _Comp(props: IProps) {
    return 
;
}

// type for "outside" of component
interface GenericsSFC extends React.SFC {
    (props: IProps & { children?: React.ReactNode }, context?: any): JSX.Element;
}

const Comp = _Comp as GenericsSFC;

// dont type check: v is of type "hey"
 v - 1} />;