vue3-yuanma/packages/core/src/index.ts

// Core API
export { h, Fragment, Portal } from './h'
export { Component } from './component'
export { cloneVNode, createPortal, createFragment } from './vdom'
export { createRenderer } from './createRenderer'

// Observer API
export * from '@vue/observer'

// Scheduler API
export { nextTick } from '@vue/scheduler'

// Internal API
export {
  createComponentInstance,
  createComponentClassFromOptions
} from './componentUtils'

// Optional APIs
// these are imported on-demand and can be tree-shaken
export { applyDirectives } from './optional/directive'
export { Provide, Inject } from './optional/context'
export { createAsyncComponent } from './optional/asyncComponent'
export { KeepAlive } from './optional/keepAlive'

// flags & types
export { ComponentType, ComponentClass, FunctionalComponent } from './component'
export * from './componentOptions'
export { VNodeFlags, ChildrenFlags } from './flags'
export { VNode, Slots } from './vdom'