element-vir/dist/declarative-element/is-declarative-element.js

Heroic. Reactive. Declarative. Type safe. Web components without compromise.

import { check } from '@augment-vir/assert';
/**
 * Checks if the input is an instance of a DeclarativeElement, the super class of all custom
 * elements defined with element-vir.
 *
 * @category Util
 */
export function isDeclarativeElement(input) {
    const markerProperties = [
        'instanceInputs',
        'instanceState',
        'definition',
    ];
    return check.hasKeys(input, markerProperties);
}
/**
 * Checks if the input is an instance of a DeclarativeElement, the super class of all custom
 * elements defined with element-vir.
 *
 * @category Util
 */
export function assertIsDeclarativeElement(input) {
    if (!isDeclarativeElement(input)) {
        console.error('this is not a declarative element:', input);
        throw new Error(`${String(check.hasKey(input, 'tagName') ? input.tagName : input)} is not a declarative element.`);
    }
}