@metamask/ocap-kernel/dist/store/utils/extract-ref.mjs

OCap kernel core components

import { passStyleOf } from "@endo/pass-style";
import { kunser, krefOf } from "../../services/kernel-marshal.mjs";
/**
 * Obtain the KRef from a simple value represented as a CapData object.
 *
 * @param data - The data object to be examined.
 * @returns the single KRef that is `data`, or null if it isn't one.
 */
export function extractSingleRef(data) {
    const value = kunser(data);
    const style = passStyleOf(value);
    if (style === 'remotable' || style === 'promise') {
        return krefOf(value);
    }
    return null;
}
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