How to use the enhanced-resolve.ResolverFactory function in enhanced-resolve

'use strict'

const path = require('path')
const os = require('os')
const execFile = require('execa')
const webpack = require('webpack')
const minify = require('babel-minify')
const gzipSize = require('gzip-size')
const MemoryFs = require('memory-fs')
const Buffer = require('buffer').Buffer
const parsePackageName = require('parse-package-name')
const enhancedResolve = require('enhanced-resolve')
const tmp = path.join(os.tmpdir(), 'jsize-' + Math.random().toString(36).substring(7))
const npmBin = path.join(require.resolve('npm/package.json'), '../../.bin/npm')
const resolver = enhancedResolve.ResolverFactory.createResolver({
  fileSystem: new enhancedResolve.NodeJsInputFileSystem(),
  mainFields: ['browser', 'module', 'main']
})
require('fs').mkdirSync(tmp)

/**
 * Calculates the sizes (initial, minified and gziped) for a given package.
 *
 * @param {string|string[]} pkgs - the package(s) to check the size of.
 * @return {Promise}
 */
module.exports = function jsize (pkgs) {
  // Parse all package details. (allows for single or multiple packages)
  pkgs = [].concat(pkgs).map(parsePackageName)
  // Get unique package ids.
  const ids = pkgs

const AMDPlugin = require("./dependencies/AMDPlugin");
const RequireContextPlugin = require("./dependencies/RequireContextPlugin");
const RequireEnsurePlugin = require("./dependencies/RequireEnsurePlugin");
const RequireIncludePlugin = require("./dependencies/RequireIncludePlugin");

const EnsureChunkConditionsPlugin = require("./optimize/EnsureChunkConditionsPlugin");
const RemoveParentModulesPlugin = require("./optimize/RemoveParentModulesPlugin");
const RemoveEmptyChunksPlugin = require("./optimize/RemoveEmptyChunksPlugin");
const MergeDuplicateChunksPlugin = require("./optimize/MergeDuplicateChunksPlugin");
const FlagIncludedChunksPlugin = require("./optimize/FlagIncludedChunksPlugin");
const OccurrenceOrderPlugin = require("./optimize/OccurrenceOrderPlugin");
const FlagDependencyUsagePlugin = require("./FlagDependencyUsagePlugin");
const FlagDependencyExportsPlugin = require("./FlagDependencyExportsPlugin");
const SizeLimitsPlugin = require("./performance/SizeLimitsPlugin");

const ResolverFactory = require("enhanced-resolve").ResolverFactory;

class WebpackOptionsApply extends OptionsApply {
	constructor() {
		super();
	}

	process(options, compiler) {
		let ExternalsPlugin;
		compiler.outputPath = options.output.path;
		compiler.recordsInputPath = options.recordsInputPath || options.recordsPath;
		compiler.recordsOutputPath = options.recordsOutputPath || options.recordsPath;
		compiler.name = options.name;
		compiler.dependencies = options.dependencies;
		if(typeof options.target === "string") {
			let JsonpTemplatePlugin;
			let NodeSourcePlugin;

return __awaiter(this, void 0, void 0, function* () {
        const lookupStartPath = upath.dirname(source);
        const requestFileName = upath.basename(request);
        const requestDir = upath.dirname(request);
        if (requestFileName.startsWith('_') === false) {
            const partialFolderLookups = [lookupStartPath];
            if (requestDir !== '.') {
                partialFolderLookups.push('node_modules');
            }
            const partialSassResolver = enhanced_resolve_1.ResolverFactory.createResolver({
                fileSystem: fs,
                extensions: ['.scss'],
                modules: partialFolderLookups,
                mainFiles: [],
                descriptionFiles: []
            });
            const partialFileName = '_' + upath.addExt(requestFileName, '.scss');
            const partialRequest = upath.join(requestDir, partialFileName);
            try {
                return yield resolveAsync(partialSassResolver, lookupStartPath, partialRequest);
            }
            catch (ex) {
            }
        }
        const sassResolver = enhanced_resolve_1.ResolverFactory.createResolver({
            fileSystem: fs,

const AMDPlugin = require("./dependencies/AMDPlugin");
const RequireContextPlugin = require("./dependencies/RequireContextPlugin");
const RequireEnsurePlugin = require("./dependencies/RequireEnsurePlugin");
const RequireIncludePlugin = require("./dependencies/RequireIncludePlugin");

const EnsureChunkConditionsPlugin = require("./optimize/EnsureChunkConditionsPlugin");
const RemoveParentModulesPlugin = require("./optimize/RemoveParentModulesPlugin");
const RemoveEmptyChunksPlugin = require("./optimize/RemoveEmptyChunksPlugin");
const MergeDuplicateChunksPlugin = require("./optimize/MergeDuplicateChunksPlugin");
const FlagIncludedChunksPlugin = require("./optimize/FlagIncludedChunksPlugin");
const OccurrenceOrderPlugin = require("./optimize/OccurrenceOrderPlugin");
const FlagDependencyUsagePlugin = require("./FlagDependencyUsagePlugin");
const FlagDependencyExportsPlugin = require("./FlagDependencyExportsPlugin");
const SizeLimitsPlugin = require("./performance/SizeLimitsPlugin");

const ResolverFactory = require("enhanced-resolve").ResolverFactory;

class WebpackOptionsApply extends OptionsApply {
	constructor() {
		super();
	}

	process(options, compiler) {
		let ExternalsPlugin;
		compiler.outputPath = options.output.path;
		compiler.recordsInputPath = options.recordsInputPath || options.recordsPath;
		compiler.recordsOutputPath = options.recordsOutputPath || options.recordsPath;
		compiler.name = options.name;
		compiler.dependencies = options.dependencies;
		if(typeof options.target === "string") {
			let JsonpTemplatePlugin;
			let NodeSourcePlugin;

const AMDPlugin = require("./dependencies/AMDPlugin");
const RequireContextPlugin = require("./dependencies/RequireContextPlugin");
const RequireEnsurePlugin = require("./dependencies/RequireEnsurePlugin");
const RequireIncludePlugin = require("./dependencies/RequireIncludePlugin");

const EnsureChunkConditionsPlugin = require("./optimize/EnsureChunkConditionsPlugin");
const RemoveParentModulesPlugin = require("./optimize/RemoveParentModulesPlugin");
const RemoveEmptyChunksPlugin = require("./optimize/RemoveEmptyChunksPlugin");
const MergeDuplicateChunksPlugin = require("./optimize/MergeDuplicateChunksPlugin");
const FlagIncludedChunksPlugin = require("./optimize/FlagIncludedChunksPlugin");
const OccurrenceOrderPlugin = require("./optimize/OccurrenceOrderPlugin");
const FlagDependencyUsagePlugin = require("./FlagDependencyUsagePlugin");
const FlagDependencyExportsPlugin = require("./FlagDependencyExportsPlugin");
const SizeLimitsPlugin = require("./performance/SizeLimitsPlugin");

const ResolverFactory = require("enhanced-resolve").ResolverFactory;

class WebpackOptionsApply extends OptionsApply {
	constructor() {
		super();
	}

	process(options, compiler) {
		let ExternalsPlugin;
		compiler.outputPath = options.output.path;
		compiler.recordsInputPath = options.recordsInputPath || options.recordsPath;
		compiler.recordsOutputPath = options.recordsOutputPath || options.recordsPath;
		compiler.name = options.name;
		compiler.dependencies = options.dependencies;
		if(typeof options.target === "string") {
			let JsonpTemplatePlugin;
			let NodeSourcePlugin;

var AMDPlugin = require("./dependencies/AMDPlugin");
var RequireContextPlugin = require("./dependencies/RequireContextPlugin");
var RequireEnsurePlugin = require("./dependencies/RequireEnsurePlugin");
var RequireIncludePlugin = require("./dependencies/RequireIncludePlugin");

var EnsureChunkConditionsPlugin = require("./optimize/EnsureChunkConditionsPlugin");
var RemoveParentModulesPlugin = require("./optimize/RemoveParentModulesPlugin");
var RemoveEmptyChunksPlugin = require("./optimize/RemoveEmptyChunksPlugin");
var MergeDuplicateChunksPlugin = require("./optimize/MergeDuplicateChunksPlugin");
var FlagIncludedChunksPlugin = require("./optimize/FlagIncludedChunksPlugin");
var OccurrenceOrderPlugin = require("./optimize/OccurrenceOrderPlugin");
var FlagDependencyUsagePlugin = require("./FlagDependencyUsagePlugin");
var FlagDependencyExportsPlugin = require("./FlagDependencyExportsPlugin");
var SizeLimitsPlugin = require("./performance/SizeLimitsPlugin");

var ResolverFactory = require("enhanced-resolve").ResolverFactory;

function WebpackOptionsApply() {
	OptionsApply.call(this);
}
module.exports = WebpackOptionsApply;

WebpackOptionsApply.prototype = Object.create(OptionsApply.prototype);
WebpackOptionsApply.prototype.constructor = WebpackOptionsApply;

WebpackOptionsApply.prototype.process = function(options, compiler) {
	var ExternalsPlugin;
	compiler.outputPath = options.output.path;
	compiler.recordsInputPath = options.recordsInputPath || options.recordsPath;
	compiler.recordsOutputPath = options.recordsOutputPath || options.recordsPath;
	compiler.name = options.name;
	compiler.dependencies = options.dependencies;

const AMDPlugin = require("./dependencies/AMDPlugin");
const RequireContextPlugin = require("./dependencies/RequireContextPlugin");
const RequireEnsurePlugin = require("./dependencies/RequireEnsurePlugin");
const RequireIncludePlugin = require("./dependencies/RequireIncludePlugin");

const EnsureChunkConditionsPlugin = require("./optimize/EnsureChunkConditionsPlugin");
const RemoveParentModulesPlugin = require("./optimize/RemoveParentModulesPlugin");
const RemoveEmptyChunksPlugin = require("./optimize/RemoveEmptyChunksPlugin");
const MergeDuplicateChunksPlugin = require("./optimize/MergeDuplicateChunksPlugin");
const FlagIncludedChunksPlugin = require("./optimize/FlagIncludedChunksPlugin");
const OccurrenceOrderPlugin = require("./optimize/OccurrenceOrderPlugin");
const FlagDependencyUsagePlugin = require("./FlagDependencyUsagePlugin");
const FlagDependencyExportsPlugin = require("./FlagDependencyExportsPlugin");
const SizeLimitsPlugin = require("./performance/SizeLimitsPlugin");

const ResolverFactory = require("enhanced-resolve").ResolverFactory;

class WebpackOptionsApply extends OptionsApply {
	constructor() {
		super();
	}

	process(options, compiler) {
		let ExternalsPlugin;
		compiler.outputPath = options.output.path;
		compiler.recordsInputPath = options.recordsInputPath || options.recordsPath;
		compiler.recordsOutputPath = options.recordsOutputPath || options.recordsPath;
		compiler.name = options.name;
		compiler.dependencies = options.dependencies;
		if(typeof options.target === "string") {
			let JsonpTemplatePlugin;
			let NodeSourcePlugin;

const AMDPlugin = require("./dependencies/AMDPlugin");
const RequireContextPlugin = require("./dependencies/RequireContextPlugin");
const RequireEnsurePlugin = require("./dependencies/RequireEnsurePlugin");
const RequireIncludePlugin = require("./dependencies/RequireIncludePlugin");

const EnsureChunkConditionsPlugin = require("./optimize/EnsureChunkConditionsPlugin");
const RemoveParentModulesPlugin = require("./optimize/RemoveParentModulesPlugin");
const RemoveEmptyChunksPlugin = require("./optimize/RemoveEmptyChunksPlugin");
const MergeDuplicateChunksPlugin = require("./optimize/MergeDuplicateChunksPlugin");
const FlagIncludedChunksPlugin = require("./optimize/FlagIncludedChunksPlugin");
const OccurrenceOrderPlugin = require("./optimize/OccurrenceOrderPlugin");
const FlagDependencyUsagePlugin = require("./FlagDependencyUsagePlugin");
const FlagDependencyExportsPlugin = require("./FlagDependencyExportsPlugin");
const SizeLimitsPlugin = require("./performance/SizeLimitsPlugin");

const ResolverFactory = require("enhanced-resolve").ResolverFactory;

class WebpackOptionsApply extends OptionsApply {
	constructor() {
		super();
	}

	process(options, compiler) {
		let ExternalsPlugin;
		compiler.outputPath = options.output.path;
		compiler.recordsInputPath = options.recordsInputPath || options.recordsPath;
		compiler.recordsOutputPath = options.recordsOutputPath || options.recordsPath;
		compiler.name = options.name;
		compiler.dependencies = options.dependencies;
		if(typeof options.target === "string") {
			let JsonpTemplatePlugin;
			let NodeSourcePlugin;

const AMDPlugin = require("./dependencies/AMDPlugin");
const RequireContextPlugin = require("./dependencies/RequireContextPlugin");
const RequireEnsurePlugin = require("./dependencies/RequireEnsurePlugin");
const RequireIncludePlugin = require("./dependencies/RequireIncludePlugin");

const EnsureChunkConditionsPlugin = require("./optimize/EnsureChunkConditionsPlugin");
const RemoveParentModulesPlugin = require("./optimize/RemoveParentModulesPlugin");
const RemoveEmptyChunksPlugin = require("./optimize/RemoveEmptyChunksPlugin");
const MergeDuplicateChunksPlugin = require("./optimize/MergeDuplicateChunksPlugin");
const FlagIncludedChunksPlugin = require("./optimize/FlagIncludedChunksPlugin");
const OccurrenceOrderPlugin = require("./optimize/OccurrenceOrderPlugin");
const FlagDependencyUsagePlugin = require("./FlagDependencyUsagePlugin");
const FlagDependencyExportsPlugin = require("./FlagDependencyExportsPlugin");
const SizeLimitsPlugin = require("./performance/SizeLimitsPlugin");

const ResolverFactory = require("enhanced-resolve").ResolverFactory;

class WebpackOptionsApply extends OptionsApply {
	constructor() {
		super();
	}

	process(options, compiler) {
		let ExternalsPlugin;
		compiler.outputPath = options.output.path;
		compiler.recordsInputPath = options.recordsInputPath || options.recordsPath;
		compiler.recordsOutputPath = options.recordsOutputPath || options.recordsPath;
		compiler.name = options.name;
		compiler.dependencies = options.dependencies;
		if(typeof options.target === "string") {
			let JsonpTemplatePlugin;
			let NodeSourcePlugin;