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 92 | 2x 2x 337x 2x 308x 2x 1042x 274x 274x 1042x 1042x 533x 122x 112x 112x 111x 1042x 12x 12x 9x 9x 9x 9x 9x 12x 1033x 1042x 737x 737x 1042x 17x 17x 25x 25x 8x 25x 17x 17x 17x 8x 8x 8x 1x 1x 25x 16x 1034x 255x 255x 1042x 280x 280x 280x 262x 88x 251x 280x 250x 250x 250x 250x 250x 250x 250x 250x 250x 280x | import {
ElementTypes,
type NodeTransform,
NodeTypes,
type ParentNode,
type RootNode,
type TemplateChildNode,
createSimpleExpression,
findDir,
locStub,
} from '@vue/compiler-dom'
const filterChild = (node: ParentNode) =>
node.children.filter(n => n.type !== NodeTypes.COMMENT)
const hasSingleChild = (node: ParentNode): boolean =>
filterChild(node).length === 1
export const ssrInjectFallthroughAttrs: NodeTransform = (node, context) => {
// _attrs is provided as a function argument.
// mark it as a known identifier so that it doesn't get prefixed by
// transformExpression.
if (node.type === NodeTypes.ROOT) {
context.identifiers._attrs = 1
}
if (
node.type === NodeTypes.ELEMENT &&
node.tagType === ElementTypes.COMPONENT &&
(node.tag === 'transition' ||
node.tag === 'Transition' ||
node.tag === 'KeepAlive' ||
node.tag === 'keep-alive')
) {
const rootChildren = filterChild(context.root)
if (rootChildren.length === 1 && rootChildren[0] === node) {
if (hasSingleChild(node)) {
injectFallthroughAttrs(node.children[0])
}
return
}
}
const parent = context.parent
if (!parent || parent.type !== NodeTypes.ROOT) {
return
}
if (node.type === NodeTypes.IF_BRANCH && hasSingleChild(node)) {
// detect cases where the parent v-if is not the only root level node
let hasEncounteredIf = false
for (const c of filterChild(parent)) {
if (
c.type === NodeTypes.IF ||
(c.type === NodeTypes.ELEMENT && findDir(c, 'if'))
) {
// multiple root v-if
if (hasEncounteredIf) return
hasEncounteredIf = true
} else if (
// node before v-if
!hasEncounteredIf ||
// non else nodes
!(c.type === NodeTypes.ELEMENT && findDir(c, /else/, true))
) {
return
}
}
injectFallthroughAttrs(node.children[0])
} else if (hasSingleChild(parent)) {
injectFallthroughAttrs(node)
}
}
function injectFallthroughAttrs(node: RootNode | TemplateChildNode) {
if (
node.type === NodeTypes.ELEMENT &&
(node.tagType === ElementTypes.ELEMENT ||
node.tagType === ElementTypes.COMPONENT) &&
!findDir(node, 'for')
) {
node.props.push({
type: NodeTypes.DIRECTIVE,
name: 'bind',
arg: undefined,
exp: createSimpleExpression(`_attrs`, false),
modifiers: [],
loc: locStub,
})
}
}
|