mirror of https://github.com/vuejs/core.git
25 lines
808 B
TypeScript
25 lines
808 B
TypeScript
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import { NodeTransform, NodeTypes, ElementTypes } from '@vue/compiler-core'
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import { TRANSITION } from '../runtimeHelpers'
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import { createDOMCompilerError, DOMErrorCodes } from '../errors'
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export const warnTransitionChildren: NodeTransform = (node, context) => {
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if (
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node.type === NodeTypes.ELEMENT &&
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node.tagType === ElementTypes.COMPONENT
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) {
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const component = context.isBuiltInComponent(node.tag)
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if (
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component === TRANSITION &&
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(node.children.length > 1 || node.children[0].type === NodeTypes.FOR)
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) {
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context.onError(
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createDOMCompilerError(DOMErrorCodes.X_TRANSITION_INVALID_CHILDREN, {
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start: node.children[0].loc.start,
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end: node.children[node.children.length - 1].loc.end,
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source: ''
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})
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)
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}
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}
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}
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