[FEATURE] Publish stable types for Ember

broccoli/packages.js

@@ -140,6 +140,12 @@ module.exports.backburnerES = function _backburnerES() {
   return funnelLib('backburner.js', 'dist/es6', {
     files: ['backburner.js'],
     annotation: 'backburner es',
+    // This write the "output" to `backburner.js.js` in the funnel, which means
+    // that when it gets fed into the Babel AMD transform, which (implicitly)
+    // pulls off the trailing `.js`, the result is just `backburner.js`, which
+    // is the actual Node-resolve-able (and therefore TS-resolve-able) ES module
+    // on disk.
+    getDestinationPath: (relativePath) => relativePath + '.js',
   });
 };
 

packages/@ember/routing/router.ts

@@ -46,7 +46,7 @@ import type {
   TransitionState,
 } from 'router_js';
 import Router, { logAbort, STATE_SYMBOL } from 'router_js';
-import type { Timer } from 'backburner';
+import type { Timer } from 'backburner.js';
 import EngineInstance from '@ember/engine/instance';
 import type { QueryParams } from 'route-recognizer';
 import type { AnyFn, MethodNamesOf, OmitFirst } from '@ember/-internals/utility-types';

packages/@ember/runloop/index.ts

@@ -1,8 +1,8 @@
 import { assert } from '@ember/debug';
 import { onErrorTarget } from '@ember/-internals/error-handling';
 import { flushAsyncObservers } from '@ember/-internals/metal';
-import type { DeferredActionQueues } from 'backburner';
-import Backburner, { Timer } from 'backburner';
+import type { DeferredActionQueues } from 'backburner.js';
+import Backburner, { Timer } from 'backburner.js';
 import type { AnyFn } from '@ember/-internals/utility-types';
 
 export { Timer };

packages/ember/index.ts

@@ -13,7 +13,7 @@ import * as metal from '@ember/-internals/metal';
 import { FEATURES, isEnabled } from '@ember/canary-features';
 import * as EmberDebug from '@ember/debug';
 import { assert, captureRenderTree } from '@ember/debug';
-import Backburner from 'backburner';
+import Backburner from 'backburner.js';
 import Controller, { inject as injectController, ControllerMixin } from '@ember/controller';
 import Service, { service } from '@ember/service';
 

types/publish.mjs

@@ -277,7 +277,7 @@ export function rewriteModule(code, moduleName) {
         // This makes it so that the types we publish point to the types defined
         // by `backburner.js`, basically doing the type-time equivalent of the
         // no good, very bad runtime shenanigans Ember does... *somewhere*... in
-        // the build to make `import Backburner from 'backburner'` work.
+        // the build to make `import Backburner from 'backburner.js'` work.
         if (source.value === 'backburner') {
           source.value = 'backburner.js';
         }