jsonref/dist/rebase.js

Javascript References ($ref) and Pointers library

import { RebaserError } from './errors.js';
/**
 * Rebase JSON $refs properties (only) as specified by the rebase function.
 * It modifies the passed object.
 *
 * @param {string} id - id of the JSON (e.g., name of the schema in case of a JSON schema)
 * @param {*} obj - the JSON object
 * @param {Function} rebaser - the function which changes refs values as required by the specific application
 * @throws error - in case of error rebasing the object
 * @returns {*} a copy of the passed JSON object with rebased $refs, in case of success.
 */
export function rebase(id, obj, rebaser) {
    // visited objects properties registry
    const parsedProps = [];
    try {
        (function findAndRebase(obj) {
            for (const key of Object.keys(obj)) {
                if (key === '$ref') {
                    if (rebaser) {
                        rebaser(id, obj);
                    }
                }
                const prop = obj[key];
                if (prop && typeof prop === 'object') {
                    if (!Array.isArray(prop)) {
                        if (!parsedProps.find((p) => p === prop)) {
                            parsedProps.push(prop);
                            findAndRebase(prop);
                        }
                    }
                    else {
                        // the property value is an array
                        for (let i = 0; i < prop.length; i++) {
                            findAndRebase(prop[i]);
                        }
                    }
                }
            }
        })(obj);
    }
    catch (error) {
        throw new RebaserError('rebase', 'error', [error]);
    }
    return obj;
}
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