source: trip-planner-front/node_modules/@angular/core/esm2015/src/linker/ng_module_factory_registration.js

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { autoRegisterModuleById, getNgModuleDef } from '../render3/definition';
import { maybeUnwrapFn } from '../render3/util/misc_utils';
import { stringify } from '../util/stringify';
/**
 * Map of module-id to the corresponding NgModule.
 * - In pre Ivy we track NgModuleFactory,
 * - In post Ivy we track the NgModuleType
 */
const modules = new Map();
/**
 * Registers a loaded module. Should only be called from generated NgModuleFactory code.
 * @publicApi
 */
export function registerModuleFactory(id, factory) {
    const existing = modules.get(id);
    assertSameOrNotExisting(id, existing && existing.moduleType, factory.moduleType);
    modules.set(id, factory);
}
function assertSameOrNotExisting(id, type, incoming) {
    if (type && type !== incoming) {
        throw new Error(`Duplicate module registered for ${id} - ${stringify(type)} vs ${stringify(type.name)}`);
    }
}
export function registerNgModuleType(ngModuleType) {
    const visited = new Set();
    recurse(ngModuleType);
    function recurse(ngModuleType) {
        // The imports array of an NgModule must refer to other NgModules,
        // so an error is thrown if no module definition is available.
        const def = getNgModuleDef(ngModuleType, /* throwNotFound */ true);
        const id = def.id;
        if (id !== null) {
            const existing = modules.get(id);
            assertSameOrNotExisting(id, existing, ngModuleType);
            modules.set(id, ngModuleType);
        }
        const imports = maybeUnwrapFn(def.imports);
        for (const i of imports) {
            if (!visited.has(i)) {
                visited.add(i);
                recurse(i);
            }
        }
    }
}
export function clearModulesForTest() {
    modules.clear();
}
export function getRegisteredNgModuleType(id) {
    return modules.get(id) || autoRegisterModuleById[id];
}
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