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import { EMPTY } from '../constants';
import { getNodeProps } from './index';
import { isFunction } from '../util';
/** Check if a VNode is a reference to a stateless functional component.
* A function component is represented as a VNode whose `nodeName` property is a reference to a function.
* If that function is not a Component (ie, has no `.render()` method on a prototype), it is considered a stateless functional component.
* @param {VNode} vnode A VNode
* @private
*/
export function isFunctionalComponent(vnode) {
let nodeName = vnode && vnode.nodeName;
return nodeName && isFunction(nodeName) && !(nodeName.prototype && nodeName.prototype.render);
}
/** Construct a resultant VNode from a VNode referencing a stateless functional component.
* @param {VNode} vnode A VNode with a `nodeName` property that is a reference to a function.
* @private
*/
export function buildFunctionalComponent(vnode, context) {
return vnode.nodeName(getNodeProps(vnode), context || EMPTY);
}
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