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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 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 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 | 2x 2x 85x 85x 85x 85x 85x 85x 85x 85x 67x 59x 9x 85x 18x 18x 18x 18x 18x 18x 18x 18x 18x 18x 67x 85x 1x 1x 1x 1x 1x 85x 48x 48x 67x 67x 85x 85x 64x 85x 85x 85x 85x 85x 85x 85x 85x 85x 23x 44x 85x 85x 7x 7x 85x 48x 48x 67x 67x 2x 74x 74x 74x 74x 74x 68x 68x 5x 74x 67x 74x 67x 7x 74x | import type { Data } from '../component'
import type { RawSlots, Slots } from '../componentSlots'
import {
type ContextualRenderFn,
currentRenderingInstance,
} from '../componentRenderContext'
import {
Comment,
Fragment,
type VNode,
type VNodeArrayChildren,
createBlock,
createVNode,
isVNode,
openBlock,
} from '../vnode'
import { PatchFlags, SlotFlags, isSymbol } from '@vue/shared'
import { warn } from '../warning'
import { isAsyncWrapper } from '../apiAsyncComponent'
/**
* 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!.ce ||
(currentRenderingInstance!.parent &&
isAsyncWrapper(currentRenderingInstance!.parent) &&
currentRenderingInstance!.parent.ce)
) {
// in custom element mode, render <slot/> as actual slot outlets
// wrap it with a fragment because in shadowRoot: false mode the slot
// element gets replaced by injected content
if (name !== 'default') props.name = name
return (
openBlock(),
createBlock(
Fragment,
null,
[createVNode('slot', props, fallback && fallback())],
PatchFlags.STABLE_FRAGMENT,
)
)
}
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 $dynamic-slots in the ` +
`parent template.`,
)
slot = () => []
}
// a compiled slot disables block tracking by default to avoid manual
// invocation interfering with template-based block tracking, but in
// `renderSlot` we can be sure that it's template-based so we can force
// enable it.
if (slot && (slot as ContextualRenderFn)._c) {
;(slot as ContextualRenderFn)._d = false
}
openBlock()
const validSlotContent = slot && ensureValidVNode(slot(props))
const slotKey =
props.key ||
// slot content array of a dynamic conditional slot may have a branch
// key attached in the `createSlots` helper, respect that
(validSlotContent && (validSlotContent as any).key)
const rendered = createBlock(
Fragment,
{
key:
(slotKey && !isSymbol(slotKey) ? slotKey : `_${name}`) +
// #7256 force differentiate fallback content from actual content
(!validSlotContent && fallback ? '_fb' : ''),
},
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
}
export function ensureValidVNode(
vnodes: VNodeArrayChildren,
): VNodeArrayChildren | null {
return vnodes.some(child => {
if (!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
}
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