[CLEANUP] Remove internal Ember.assign usage

lib/index.js

@@ -204,7 +204,6 @@ module.exports = {
             require.resolve('@babel/plugin-transform-block-scoping'),
             { throwIfClosureRequired: true },
           ],
-          [require.resolve('@babel/plugin-transform-object-assign')],
         ],
       }),
     };

lib/transforms/inject-babel-helpers.js

@@ -21,9 +21,7 @@ function injectBabelHelpersPlugin(isEmberSource) {
   return {
     pre(file) {
       file.set('helperGenerator', function (name) {
-        if (name === 'extends') {
-          return addNamed(file.path, 'assign', '@ember/polyfills');
-        } else if (isEmberSource && name === 'asyncToGenerator') {
+        if (isEmberSource && name === 'asyncToGenerator') {
           // Returning a falsy value will cause the helper to be inlined,
           // which is fine for local tests
           return false;

package.json

@@ -49,7 +49,6 @@
   "dependencies": {
     "@babel/helper-module-imports": "^7.8.3",
     "@babel/plugin-transform-block-scoping": "^7.8.3",
-    "@babel/plugin-transform-object-assign": "^7.8.3",
     "@ember/edition-utils": "^1.2.0",
     "@glimmer/vm-babel-plugins": "0.79.2",
     "babel-plugin-debug-macros": "^0.3.3",

packages/@ember/-internals/container/lib/container.ts

@@ -1,7 +1,6 @@
 import { Factory, LookupOptions, Owner, setOwner } from '@ember/-internals/owner';
 import { dictionary, HAS_NATIVE_PROXY, HAS_NATIVE_SYMBOL, symbol } from '@ember/-internals/utils';
 import { assert } from '@ember/debug';
-import { assign } from '@ember/polyfills';
 import { DEBUG } from '@glimmer/env';
 import Registry, { DebugRegistry, Injection } from './registry';
 
@@ -586,7 +585,7 @@ class FactoryManager<T, C> {
     }
 
     if (options !== undefined) {
-      props = assign({}, props, options);
+      props = Object.assign({}, props, options);
     }
 
     if (DEBUG) {

packages/@ember/-internals/container/lib/registry.ts

@@ -1,7 +1,6 @@
 import { Factory } from '@ember/-internals/owner';
 import { dictionary, intern } from '@ember/-internals/utils';
 import { assert } from '@ember/debug';
-import { assign } from '@ember/polyfills';
 import { DEBUG } from '@glimmer/env';
 import Container, { ContainerOptions, LazyInjection } from './container';
 
@@ -607,7 +606,7 @@ export default class Registry implements IRegistry {
       resolverKnown = this.resolver.knownForType(type);
     }
 
-    return assign({}, fallbackKnown, localKnown, resolverKnown);
+    return Object.assign({}, fallbackKnown, localKnown, resolverKnown);
   }
 
   isValidFullName(fullName: string): boolean {

packages/@ember/-internals/container/tests/container_test.js

@@ -1,5 +1,4 @@
 import { getOwner } from '@ember/-internals/owner';
-import { assign } from '@ember/polyfills';
 import Service from '@ember/service';
 import { DEBUG } from '@glimmer/env';
 import { Registry } from '..';
@@ -831,7 +830,7 @@ moduleFor(
       class Component {
         static create(options) {
           let instance = new this();
-          assign(instance, options);
+          Object.assign(instance, options);
           return instance;
         }
       }

packages/@ember/-internals/extension-support/tests/container_debug_adapter_test.js

@@ -1,5 +1,4 @@
 import { moduleFor, ApplicationTestCase } from 'internal-test-helpers';
-import { assign } from '@ember/polyfills';
 import { run } from '@ember/runloop';
 import EmberController from '@ember/controller';
 import '../index'; // Must be required to export Ember.ContainerDebugAdapter.
@@ -17,7 +16,7 @@ moduleFor(
     }
 
     get applicationOptions() {
-      return assign(super.applicationOptions, {
+      return Object.assign(super.applicationOptions, {
         autoboot: true,
       });
     }

packages/@ember/-internals/glimmer/lib/component-managers/curly.ts

@@ -4,7 +4,6 @@ import { addChildView, setElementView, setViewElement } from '@ember/-internals/
 import { assert, debugFreeze } from '@ember/debug';
 import { EMBER_COMPONENT_IS_VISIBLE } from '@ember/deprecated-features';
 import { _instrumentStart } from '@ember/instrumentation';
-import { assign } from '@ember/polyfills';
 import { DEBUG } from '@glimmer/env';
 import {
   Bounds,
@@ -219,11 +218,11 @@ export default class CurlyComponentManager
       named = {
         [positionalParams]: createComputeRef(() => reifyPositional(captured)),
       };
-      assign(named, args.named.capture());
+      Object.assign(named, args.named.capture());
     } else if (Array.isArray(positionalParams) && positionalParams.length > 0) {
       const count = Math.min(positionalParams.length, args.positional.length);
       named = {};
-      assign(named, args.named.capture());
+      Object.assign(named, args.named.capture());
 
       for (let i = 0; i < count; i++) {
         // As of TS 3.7, tsc is giving us the following error on this line without the type annotation

packages/@ember/-internals/glimmer/lib/component-managers/outlet.ts

@@ -4,7 +4,6 @@ import { guidFor } from '@ember/-internals/utils';
 import { assert } from '@ember/debug';
 import EngineInstance from '@ember/engine/instance';
 import { _instrumentStart } from '@ember/instrumentation';
-import { assign } from '@ember/polyfills';
 import {
   CapturedArguments,
   CompilableProgram,
@@ -205,7 +204,7 @@ export class OutletComponentDefinition
 
 export function createRootOutlet(outletView: OutletView): OutletComponentDefinition {
   if (ENV._APPLICATION_TEMPLATE_WRAPPER) {
-    const WRAPPED_CAPABILITIES = assign({}, CAPABILITIES, {
+    const WRAPPED_CAPABILITIES = Object.assign({}, CAPABILITIES, {
       dynamicTag: true,
       elementHook: true,
       wrapped: true,

packages/@ember/-internals/glimmer/lib/helpers/query-param.ts

@@ -3,7 +3,6 @@
 */
 import { QueryParams } from '@ember/-internals/routing';
 import { assert, deprecate } from '@ember/debug';
-import { assign } from '@ember/polyfills';
 import { CapturedArguments } from '@glimmer/interfaces';
 import { createComputeRef } from '@glimmer/reference';
 import { reifyNamed } from '@glimmer/runtime';
@@ -51,6 +50,6 @@ export default internalHelper(({ positional, named }: CapturedArguments) => {
       }
     );
 
-    return new QueryParams(assign({}, reifyNamed(named) as any));
+    return new QueryParams(Object.assign({}, reifyNamed(named) as any));
   });
 });

packages/@ember/-internals/glimmer/lib/views/outlet.ts

@@ -1,5 +1,4 @@
 import { getOwner, Owner } from '@ember/-internals/owner';
-import { assign } from '@ember/polyfills';
 import { schedule } from '@ember/runloop';
 import { Template } from '@glimmer/interfaces';
 import { createComputeRef, Reference, updateRef } from '@glimmer/reference';
@@ -22,7 +21,7 @@ export default class OutletView {
     return class extends OutletView {
       static create(options: any) {
         if (options) {
-          return super.create(assign({}, injections, options));
+          return super.create(Object.assign({}, injections, options));
         } else {
           return super.create(injections);
         }
@@ -31,7 +30,7 @@ export default class OutletView {
   }
 
   static reopenClass(injections: any): void {
-    assign(this, injections);
+    Object.assign(this, injections);
   }
 
   static create(options: any): OutletView {

packages/@ember/-internals/glimmer/tests/integration/components/contextual-components-test.js

@@ -1,7 +1,6 @@
 import { DEBUG } from '@glimmer/env';
 import { moduleFor, RenderingTestCase, applyMixins, strip, runTask } from 'internal-test-helpers';
 
-import { assign } from '@ember/polyfills';
 import { isEmpty } from '@ember/-internals/metal';
 import { A as emberA } from '@ember/-internals/runtime';
 
@@ -1441,7 +1440,7 @@ class ContextualComponentMutableParamsTest extends RenderingTestCase {
   render(templateStr, context = {}) {
     super.render(
       `${templateStr}<span class="value">{{this.model.val2}}</span>`,
-      assign(context, { model: { val2: 8 } })
+      Object.assign(context, { model: { val2: 8 } })
     );
   }
 }

packages/@ember/-internals/glimmer/tests/integration/components/input-angle-test.js

@@ -1,7 +1,6 @@
 import { RenderingTestCase, moduleFor, runDestroy, runTask } from 'internal-test-helpers';
 import { EMBER_MODERNIZED_BUILT_IN_COMPONENTS } from '@ember/canary-features';
 import { action } from '@ember/object';
-import { assign } from '@ember/polyfills';
 import { Checkbox, TextArea, TextField } from '@ember/-internals/glimmer';
 import { set } from '@ember/-internals/metal';
 import { TargetActionSupport } from '@ember/-internals/runtime';
@@ -71,7 +70,7 @@ class InputRenderingTest extends RenderingTestCase {
   triggerEvent(type, options, selector) {
     let event = document.createEvent('Events');
     event.initEvent(type, true, true);
-    assign(event, options);
+    Object.assign(event, options);
 
     let element = this.$(selector || 'input')[0];
     runTask(() => {

packages/@ember/-internals/glimmer/tests/integration/components/input-curly-test.js

@@ -2,7 +2,6 @@ import { RenderingTestCase, moduleFor, runDestroy, runTask } from 'internal-test
 
 import { EMBER_MODERNIZED_BUILT_IN_COMPONENTS } from '@ember/canary-features';
 import { action } from '@ember/object';
-import { assign } from '@ember/polyfills';
 import { set } from '@ember/-internals/metal';
 import { jQueryDisabled, jQuery } from '@ember/-internals/views';
 
@@ -70,7 +69,7 @@ class InputRenderingTest extends RenderingTestCase {
   triggerEvent(type, options) {
     let event = document.createEvent('Events');
     event.initEvent(type, true, true);
-    assign(event, options);
+    Object.assign(event, options);
 
     let element = this.$input()[0];
     runTask(() => {

packages/@ember/-internals/glimmer/tests/integration/components/target-action-test.js

@@ -6,7 +6,6 @@ import {
   runTask,
 } from 'internal-test-helpers';
 
-import { assign } from '@ember/polyfills';
 import { set, Mixin } from '@ember/-internals/metal';
 import Controller from '@ember/controller';
 import { Object as EmberObject } from '@ember/-internals/runtime';
@@ -45,7 +44,7 @@ moduleFor(
 
     renderDelegate(template = '{{action-delegate}}', context = {}) {
       let root = this;
-      context = assign(context, {
+      context = Object.assign(context, {
         send(actionName, ...args) {
           root.sendCount++;
           root.actionCounts[actionName] = root.actionCounts[actionName] || 0;

packages/@ember/-internals/glimmer/tests/integration/components/textarea-angle-test.js

@@ -2,12 +2,11 @@ import { RenderingTestCase, moduleFor, classes, applyMixins, runTask } from 'int
 
 import { EMBER_MODERNIZED_BUILT_IN_COMPONENTS } from '@ember/canary-features';
 import { action } from '@ember/object';
-import { assign } from '@ember/polyfills';
 import { set } from '@ember/-internals/metal';
 
 class TextAreaRenderingTest extends RenderingTestCase {
   assertTextArea({ attrs, value } = {}) {
-    let mergedAttrs = assign({ class: classes('ember-view ember-text-area') }, attrs);
+    let mergedAttrs = Object.assign({ class: classes('ember-view ember-text-area') }, attrs);
     this.assertComponentElement(this.firstChild, {
       tagName: 'textarea',
       attrs: mergedAttrs,
@@ -21,7 +20,7 @@ class TextAreaRenderingTest extends RenderingTestCase {
   triggerEvent(type, options = {}) {
     let event = document.createEvent('Events');
     event.initEvent(type, true, true);
-    assign(event, options);
+    Object.assign(event, options);
 
     this.firstChild.dispatchEvent(event);
   }

packages/@ember/-internals/glimmer/tests/integration/components/textarea-curly-test.js

@@ -2,12 +2,11 @@ import { RenderingTestCase, moduleFor, classes, applyMixins, runTask } from 'int
 
 import { EMBER_MODERNIZED_BUILT_IN_COMPONENTS } from '@ember/canary-features';
 import { action } from '@ember/object';
-import { assign } from '@ember/polyfills';
 import { set } from '@ember/-internals/metal';
 
 class TextAreaRenderingTest extends RenderingTestCase {
   assertTextArea({ attrs, value } = {}) {
-    let mergedAttrs = assign({ class: classes('ember-view ember-text-area') }, attrs);
+    let mergedAttrs = Object.assign({ class: classes('ember-view ember-text-area') }, attrs);
     this.assertComponentElement(this.firstChild, {
       tagName: 'textarea',
       attrs: mergedAttrs,
@@ -21,7 +20,7 @@ class TextAreaRenderingTest extends RenderingTestCase {
   triggerEvent(type, options = {}) {
     let event = document.createEvent('Events');
     event.initEvent(type, true, true);
-    assign(event, options);
+    Object.assign(event, options);
 
     this.firstChild.dispatchEvent(event);
   }

packages/@ember/-internals/glimmer/tests/utils/shared-conditional-tests.js

@@ -2,7 +2,6 @@
 
 import { RenderingTestCase, applyMixins, runTask } from 'internal-test-helpers';
 
-import { assign } from '@ember/polyfills';
 import { htmlSafe } from '@ember/-internals/glimmer';
 import { get, set } from '@ember/-internals/metal';
 import {
@@ -115,7 +114,7 @@ export class FalsyGenerator extends AbstractGenerator {
 
 export class StableTruthyGenerator extends TruthyGenerator {
   generate(value, idx) {
-    return assign(super.generate(value, idx), {
+    return Object.assign(super.generate(value, idx), {
       [`@test it maintains DOM stability when condition changes from ${value} to another truthy value and back [${idx}]`]() {
         this.renderValues(value);
 
@@ -141,7 +140,7 @@ export class StableTruthyGenerator extends TruthyGenerator {
 
 export class StableFalsyGenerator extends FalsyGenerator {
   generate(value, idx) {
-    return assign(super.generate(value), {
+    return Object.assign(super.generate(value), {
       [`@test it maintains DOM stability when condition changes from ${value} to another falsy value and back [${idx}]`]() {
         this.renderValues(value);
 
@@ -651,7 +650,7 @@ export class TogglingSyntaxConditionalsTest extends TogglingConditionalsTest {
     }
 
     let wrappedTemplate = this.wrapperFor(templates);
-    this.render(wrappedTemplate, assign({ t: 'T', f: 'F' }, context));
+    this.render(wrappedTemplate, Object.assign({ t: 'T', f: 'F' }, context));
   }
 
   ['@test it does not update when the unbound helper is used']() {

packages/@ember/-internals/metal/lib/mixin.ts

@@ -15,7 +15,6 @@ import {
 import { EMBER_MODERNIZED_BUILT_IN_COMPONENTS } from '@ember/canary-features';
 import { assert, deprecate } from '@ember/debug';
 import { ALIAS_METHOD } from '@ember/deprecated-features';
-import { assign } from '@ember/polyfills';
 import { DEBUG } from '@glimmer/env';
 import { _WeakSet } from '@glimmer/util';
 import {
@@ -204,7 +203,7 @@ function applyMergedProperties(
     return value;
   }
 
-  let newBase = assign({}, baseValue);
+  let newBase = Object.assign({}, baseValue);
   let hasFunction = false;
 
   let props = Object.keys(value);

packages/@ember/-internals/routing/lib/services/router.ts

@@ -4,7 +4,6 @@ import { symbol } from '@ember/-internals/utils';
 import { EMBER_ROUTING_ROUTER_SERVICE_REFRESH } from '@ember/canary-features';
 import { assert } from '@ember/debug';
 import { readOnly } from '@ember/object/computed';
-import { assign } from '@ember/polyfills';
 import Service from '@ember/service';
 import { consumeTag, tagFor } from '@glimmer/validator';
 import Route from '../system/route';
@@ -313,7 +312,7 @@ export default class RouterService extends Service {
     let hasQueryParams = Object.keys(queryParams).length > 0;
 
     if (hasQueryParams) {
-      queryParams = assign({}, queryParams);
+      queryParams = Object.assign({}, queryParams);
       this._router._prepareQueryParams(
         // UNSAFE: casting `routeName as string` here encodes the existing
         // assumption but may be wrong: `extractRouteArgs` correctly returns it

packages/@ember/-internals/routing/lib/services/routing.ts

@@ -5,7 +5,6 @@
 import { getOwner, Owner } from '@ember/-internals/owner';
 import { symbol } from '@ember/-internals/utils';
 import { readOnly } from '@ember/object/computed';
-import { assign } from '@ember/polyfills';
 import Service from '@ember/service';
 import EmberRouter, { QueryParam } from '../system/router';
 import RouterState from '../system/router_state';
@@ -55,7 +54,7 @@ export default class RoutingService extends Service {
   _generateURL(routeName: string, models: {}[], queryParams: {}) {
     let visibleQueryParams = {};
     if (queryParams) {
-      assign(visibleQueryParams, queryParams);
+      Object.assign(visibleQueryParams, queryParams);
       this.normalizeQueryParams(routeName, models, visibleQueryParams as QueryParam);
     }