Function mountComponent

packages/nerv/src/lifecycle.ts:94–142

(
  vnode: FullComponent,
  parentContext: ParentContext,
  parentComponent
)

}

export function mountComponent (
  vnode: FullComponent,
  parentContext: ParentContext,
  parentComponent
) {
  const ref = vnode.ref
  if (vnode.type.prototype && vnode.type.prototype.render) {
    const context = getContextByContextType(vnode, parentContext)
    vnode.component = new vnode.type(vnode.props, context)
  } else {
    const c = new Component(vnode.props, parentContext)
    c.render = () => vnode.type.call(c, c.props, c.context)
    vnode.component = c
  }
  const component = vnode.component
  component.vnode = vnode
  if (isComponent(parentComponent)) {
    component._parentComponent = parentComponent as any
  }
  const newState = callGetDerivedStateFromProps(vnode.props, component.state, component)
  if (!isUndefined(newState)) {
    component.state = newState
  }
  if (!hasNewLifecycle(component) && isFunction(component.componentWillMount)) {
    errorCatcher(() => {
      (component as any).componentWillMount()
    }, component)
    component.state = component.getState()
    component.clearCallBacks()
  }
  component._dirty = false
  const rendered = renderComponent(component)
  rendered.parentVNode = vnode
  component._rendered = rendered
  if (!isNullOrUndef(ref)) {
    Ref.attach(vnode, ref, vnode.dom as Element)
  }
  const dom = (vnode.dom = mountVNode(
    rendered,
    getChildContext(component, parentContext),
    component
  ) as Element)
  invokeEffects(component)
  if (isFunction(component.componentDidMount)) {
    readyComponents.push(component)
  }
  component._disable = false
  return dom
}

export function getChildContext (component, context = EMPTY_OBJ) {
  if (isFunction(component.getChildContext)) {