text: /* @flow */
  
  import { toNumber, toString, looseEqual, looseIndexOf } from 'shared/util'
  import { createTextVNode, createEmptyVNode } from 'core/vdom/vnode'
  import { renderList } from './render-list'
  import { renderSlot } from './render-slot'
  import { resolveFilter } from './resolve-filter'
  import { checkKeyCodes } from './check-keycodes'
  import { bindObjectProps } from './bind-object-props'
  import { renderStatic, markOnce } from './render-static'
  import { bindObjectListeners } from './bind-object-listeners'
  import { resolveScopedSlots } from './resolve-scoped-slots'
  import { bindDynamicKeys, prependModifier } from './bind-dynamic-keys'
  
  // 声明render函数中的别名
  export function installRenderHelpers (target: any) {
    target._o = markOnce
    target._n = toNumber
    target._s = toString
    target._l = renderList
    target._t = renderSlot
    target._q = looseEqual
    target._i = looseIndexOf
    target._m = renderStatic
    target._f = resolveFilter
    target._k = checkKeyCodes
    target._b = bindObjectProps
    target._v = createTextVNode
    target._e = createEmptyVNode
    target._u = resolveScopedSlots
    target._g = bindObjectListeners
    target._d = bindDynamicKeys
    target._p = prependModifier
  }
  