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fix(compiler-core): ignore comment nodes in transition children

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fix #1352
This commit is contained in:
Evan You 2020-06-15 11:08:55 -04:00
parent afb231ec5c
commit e52b7cd7e7
1 changed files with 6 additions and 2 deletions
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8
packages/compiler-dom/src/transforms/warnTransitionChildren.ts
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@ -34,9 +34,13 @@ export const warnTransitionChildren: NodeTransform = (node, context) => {
} }
function hasMultipleChildren(node: ComponentNode | IfBranchNode): boolean { function hasMultipleChildren(node: ComponentNode | IfBranchNode): boolean {
const child = node.children[0] // #1352 filter out potential comment nodes.
const children = (node.children = node.children.filter(
c => c.type !== NodeTypes.COMMENT
))
const child = children[0]
return ( return (
node.children.length !== 1 || children.length !== 1 ||
child.type === NodeTypes.FOR || child.type === NodeTypes.FOR ||
(child.type === NodeTypes.IF && child.branches.some(hasMultipleChildren)) (child.type === NodeTypes.IF && child.branches.some(hasMultipleChildren))
) )