Function isMismatchAllowedByAttr

packages/runtime-core/src/hydration.ts:1007–1023

(
  allowedAttr: string | null,
  allowedType: MismatchTypes,
)

}

function isMismatchAllowedByAttr(
  allowedAttr: string | null,
  allowedType: MismatchTypes,
): boolean {
  if (allowedAttr == null) {
    return false
  } else if (allowedAttr === '') {
    return true
  } else {
    const list = allowedAttr.split(',')
    // text is a subset of children
    if (allowedType === MismatchTypes.TEXT && list.includes('children')) {
      return true
    }
    return list.includes(MismatchTypeString[allowedType])
  }
}

function isNodeMismatchAllowed(node: Node, vnode: VNode): boolean {
  return (