Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 | 84x 84x 84x 84x 84x 84x 39x 4x 35x 35x 1x 1x 35x 17x 35x 35x 35x 35x 7x 35x 17x 35x 36x 34x 34x 33x 1x 32x | import { Data } from '../component'
import { Slots, RawSlots } from '../componentSlots'
import {
ContextualRenderFn,
currentRenderingInstance
} from '../componentRenderContext'
import { Comment, isVNode } from '../vnode'
import {
VNodeArrayChildren,
openBlock,
createBlock,
Fragment,
VNode
} from '../vnode'
import { PatchFlags, SlotFlags } from '@vue/shared'
import { warn } from '../warning'
import { createVNode } from '@vue/runtime-core'
/**
* Compiler runtime helper for rendering `<slot/>`
* @private
*/
export function renderSlot(
slots: Slots,
name: string,
props: Data = {},
// this is not a user-facing function, so the fallback is always generated by
// the compiler and guaranteed to be a function returning an array
fallback?: () => VNodeArrayChildren,
noSlotted?: boolean
): VNode {
if (currentRenderingInstance!.isCE) {
return createVNode(
'slot',
name === 'default' ? null : { name },
fallback && fallback()
)
}
let slot = slots[name]
if (__DEV__ && slot && slot.length > 1) {
warn(
`SSR-optimized slot function detected in a non-SSR-optimized render ` +
`function. You need to mark this component with $dynamic-slots in the ` +
`parent template.`
)
slot = () => []
}
// a compiled slot disables block tracking by default to avoid manual
// invocation interfering with template-based block tracking, but in
// `renderSlot` we can be sure that it's template-based so we can force
// enable it.
if (slot && (slot as ContextualRenderFn)._c) {
;(slot as ContextualRenderFn)._d = false
}
openBlock()
const validSlotContent = slot && ensureValidVNode(slot(props))
const rendered = createBlock(
Fragment,
{ key: props.key || `_${name}` },
validSlotContent || (fallback ? fallback() : []),
validSlotContent && (slots as RawSlots)._ === SlotFlags.STABLE
? PatchFlags.STABLE_FRAGMENT
: PatchFlags.BAIL
)
if (!noSlotted && rendered.scopeId) {
rendered.slotScopeIds = [rendered.scopeId + '-s']
}
if (slot && (slot as ContextualRenderFn)._c) {
;(slot as ContextualRenderFn)._d = true
}
return rendered
}
function ensureValidVNode(vnodes: VNodeArrayChildren) {
return vnodes.some(child => {
Iif (!isVNode(child)) return true
if (child.type === Comment) return false
if (
child.type === Fragment &&
!ensureValidVNode(child.children as VNodeArrayChildren)
)
return false
return true
})
? vnodes
: null
}
|