source: frontend/node_modules/enhanced-resolve/lib/getInnerRequest.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Author Tobias Koppers @sokra
*/

"use strict";

const { isRelativeRequest } = require("./util/path");

/** @typedef {import("./Resolver")} Resolver */
/** @typedef {import("./Resolver").ResolveRequest} ResolveRequest */

/**
 * @param {Resolver} resolver resolver
 * @param {ResolveRequest} request string
 * @returns {string} inner request
 */
module.exports = function getInnerRequest(resolver, request) {
        if (
                typeof request.__innerRequest === "string" &&
                request.__innerRequest_request === request.request &&
                request.__innerRequest_relativePath === request.relativePath
        ) {
                return request.__innerRequest;
        }
        /** @type {string | undefined} */
        let innerRequest;
        if (request.request) {
                innerRequest = request.request;
                if (request.relativePath && isRelativeRequest(innerRequest)) {
                        innerRequest = resolver.join(request.relativePath, innerRequest);
                }
        } else {
                innerRequest = request.relativePath;
        }
        // eslint-disable-next-line camelcase
        request.__innerRequest_request = request.request;
        // eslint-disable-next-line camelcase
        request.__innerRequest_relativePath = request.relativePath;
        return (request.__innerRequest = /** @type {string} */ (innerRequest));
};