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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 1x 1x 1x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1x 1x 2x 2x 1x 1x 1x 1x 1x 1x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x | import {
type ComponentOptions,
type FunctionalComponent,
getCurrentInstance,
} from '../component'
import { resolveInjections } from '../componentOptions'
import type { InternalSlots } from '../componentSlots'
import { getCompatListeners } from './instanceListeners'
import { compatH } from './renderFn'
const normalizedFunctionalComponentMap = new WeakMap<
ComponentOptions,
FunctionalComponent
>()
export const legacySlotProxyHandlers: ProxyHandler<InternalSlots> = {
get(target, key: string) {
const slot = target[key]
return slot && slot()
},
}
export function convertLegacyFunctionalComponent(
comp: ComponentOptions,
): FunctionalComponent {
if (normalizedFunctionalComponentMap.has(comp)) {
return normalizedFunctionalComponentMap.get(comp)!
}
const legacyFn = comp.render as any
const Func: FunctionalComponent = (props, ctx) => {
const instance = getCurrentInstance()!
const legacyCtx = {
props,
children: instance.vnode.children || [],
data: instance.vnode.props || {},
scopedSlots: ctx.slots,
parent: instance.parent && instance.parent.proxy,
slots() {
return new Proxy(ctx.slots, legacySlotProxyHandlers)
},
get listeners() {
return getCompatListeners(instance)
},
get injections() {
if (comp.inject) {
const injections = {}
resolveInjections(comp.inject, injections)
return injections
}
return {}
},
}
return legacyFn(compatH, legacyCtx)
}
Func.props = comp.props
Func.displayName = comp.name
Func.compatConfig = comp.compatConfig
// v2 functional components do not inherit attrs
Func.inheritAttrs = false
normalizedFunctionalComponentMap.set(comp, Func)
return Func
}
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