自定义渲染器 API
createRenderer()
创建一个自定义渲染器。通过提供平台特定的节点创建以及更改 API,你可以在非 DOM 环境中也享受到 Vue 核心运行时的特性。
类型
tsfunction 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] }
示例
jsimport { createRenderer } from '@vue/runtime-core' const { render, createApp } = createRenderer({ patchProp, insert, remove, createElement // ... }) // `render` 是底层 API // `createApp` 返回一个应用实例 export { render, createApp } // 重新导出 Vue 的核心 API export * from '@vue/runtime-core'
Vue 自身的
@vue/runtime-dom
也是利用这套 API 实现的。要想了解一个简单一些的实现,请参考@vue/runtime-test
,这是一个 Vue 自己做单元测试的私有包。