Vue.js createRenderer()用法及代码示例

function createRenderer<HostNode, HostElement>(
  options: RendererOptions<HostNode, HostElement>
): Renderer<HostElement>

interface Renderer<HostElement> {
  render: RootRenderFunction<HostElement>
  createApp: CreateAppFunction<HostElement>
}

interface RendererOptions<HostNode, HostElement> {
  patchProp(
    el: HostElement,
    key: string,
    prevValue: any,
    nextValue: any,
    // the rest is unused for most custom renderers
    isSVG?: boolean,
    prevChildren?: VNode<HostNode, HostElement>[],
    parentComponent?: ComponentInternalInstance | null,
    parentSuspense?: SuspenseBoundary | null,
    unmountChildren?: UnmountChildrenFn
  ): void
  insert(
    el: HostNode,
    parent: HostElement,
    anchor?: HostNode | null
  ): void
  remove(el: HostNode): void
  createElement(
    type: string,
    isSVG?: boolean,
    isCustomizedBuiltIn?: string,
    vnodeProps?: (VNodeProps & { [key: string]: any }) | null
  ): HostElement
  createText(text: string): HostNode
  createComment(text: string): HostNode
  setText(node: HostNode, text: string): void
  setElementText(node: HostElement, text: string): void
  parentNode(node: HostNode): HostElement | null
  nextSibling(node: HostNode): HostNode | null

  // optional, DOM-specific
  querySelector?(selector: string): HostElement | null
  setScopeId?(el: HostElement, id: string): void
  cloneNode?(node: HostNode): HostNode
  insertStaticContent?(
    content: string,
    parent: HostElement,
    anchor: HostNode | null,
    isSVG: boolean
  ): [HostNode, HostNode]
}

import { createRenderer } from '@vue/runtime-core'

const { render, createApp } = createRenderer({
  patchProp,
  insert,
  remove,
  createElement
  // ...
})

// `render` is the low-level API
// `createApp` returns an app instance
export { render, createApp }

// re-export Vue core APIs
export * from '@vue/runtime-core'