Function is_custom_element_node

packages/svelte/src/compiler/phases/nodes.js:40–46

(node)

 * @returns {boolean}
 */
export function is_custom_element_node(node) {
	return (
		node.type === 'RegularElement' &&
		(node.name.includes('-') ||
			node.attributes.some((attr) => attr.type === 'Attribute' && attr.name === 'is'))
	);
}

/**
 * @param {string} name