Optional explicit modules

addon/addon/index.js

@@ -1,10 +1,6 @@
 import { dasherize, classify, underscore } from './string';
 import classFactory from './utils/class-factory';
 
-if (typeof globalThis.requirejs.entries === 'undefined') {
-  globalThis.requirejs.entries = globalThis.requirejs._eak_seen;
-}
-
 export class ModuleRegistry {
   constructor(entries) {
     this._entries = entries || globalThis.requirejs.entries;
@@ -58,10 +54,34 @@ export default class Resolver {
     this.nestedColocationComponentModuleName,
   ];
 
+  static withModules(explicitModules) {
+    return class extends this {
+      static explicitModules = explicitModules;
+    };
+  }
+
   constructor(props) {
     Object.assign(this, props);
     if (!this._moduleRegistry) {
-      this._moduleRegistry = new ModuleRegistry();
+      const explicitModules = this.constructor.explicitModules;
+      if (explicitModules) {
+        this._moduleRegistry = {
+          moduleNames() {
+            return Object.keys(explicitModules);
+          },
+          has(name) {
+            return Boolean(explicitModules[name]);
+          },
+          get(name) {
+            return explicitModules[name];
+          },
+        };
+      } else {
+        if (typeof globalThis.requirejs.entries === 'undefined') {
+          globalThis.requirejs.entries = globalThis.requirejs._eak_seen;
+        }
+        this._moduleRegistry = new ModuleRegistry();
+      }
     }
 
     this.pluralizedTypes = this.pluralizedTypes || Object.create(null);

addon/index.d.ts

@@ -2,6 +2,7 @@ import { Resolver as ResolverContract } from "@ember/owner";
 
 export default class Resolver {
   static create(props: Record<string, unknown>): InstanceType<this>;
+  static withModules(modules: Record<string, unknown>): this;
 }
 export default interface Resolver extends Required<ResolverContract> {
     pluralizedTypes: Record<string, string>;

test-app/tests/unit/resolvers/classic/with-modues-test.js

@@ -0,0 +1,18 @@
+/* eslint-disable no-console */
+
+import { module, test } from 'qunit';
+import Resolver from 'ember-resolver';
+
+module('ember-resolver withModules', function () {
+  test('explicit withModules', function (assert) {
+    let resolver = Resolver.withModules({
+      'alpha/components/hello': {
+        default: function () {
+          return 'it works';
+        },
+      },
+    }).create({ namespace: { modulePrefix: 'alpha' } });
+
+    assert.strictEqual((0, resolver.resolve('component:hello'))(), 'it works');
+  });
+});