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(node as Document) : node.ownerDocument;\n\n\tif (defaultView === null) {\n\t\tthrow new TypeError(\"no window available\");\n\t}\n\treturn defaultView;\n}\n\nexport function isHTMLFieldSetElement(\n\tnode: Node | null\n): node is HTMLFieldSetElement {\n\treturn isElement(node) && getLocalName(node) === \"fieldset\";\n}\n\nexport function isHTMLLegendElement(\n\tnode: Node | null\n): node is HTMLLegendElement {\n\treturn isElement(node) && getLocalName(node) === \"legend\";\n}\n\nexport function isHTMLSlotElement(node: Node | null): node is HTMLSlotElement {\n\treturn isElement(node) && getLocalName(node) === \"slot\";\n}\n\nexport function isSVGElement(node: Node | null): node is SVGElement {\n\treturn isElement(node) && (node as SVGElement).ownerSVGElement !== undefined;\n}\n\nexport function isSVGSVGElement(node: Node | null): node is SVGSVGElement {\n\treturn isElement(node) && getLocalName(node) === \"svg\";\n}\n\nexport function isSVGTitleElement(node: Node | null): node is SVGTitleElement {\n\treturn isSVGElement(node) && getLocalName(node) === \"title\";\n}\n\n/**\n *\n * @param {Node} node -\n * @param {string} attributeName -\n * @returns {Element[]} -\n */\nexport function queryIdRefs(node: Node, attributeName: string): Element[] {\n\tif (isElement(node) && node.hasAttribute(attributeName)) {\n\t\t// eslint-disable-next-line @typescript-eslint/no-non-null-assertion -- safe due to hasAttribute check\n\t\tconst ids = node.getAttribute(attributeName)!.split(\" \");\n\n\t\t// Browsers that don't support shadow DOM won't have getRootNode\n\t\tconst root = node.getRootNode\n\t\t\t? (node.getRootNode() as Document | ShadowRoot)\n\t\t\t: node.ownerDocument;\n\n\t\treturn ids\n\t\t\t.map((id) => root.getElementById(id))\n\t\t\t.filter(\n\t\t\t\t(element: Element | null): element is Element => element !== null\n\t\t\t\t// TODO: why does this not narrow?\n\t\t\t) as Element[];\n\t}\n\n\treturn [];\n}\n\nexport function hasAnyConcreteRoles(\n\tnode: Node,\n\troles: Array<string | null>\n): node is Element {\n\tif (isElement(node)) {\n\t\treturn roles.indexOf(getRole(node)) !== -1;\n\t}\n\treturn false;\n}\n"],"file":"util.js"}