feat(core): drop support for TypeScript 4.0 and 4.1 (#41158)

Drops support for TypeScript 4.0 and 4.1 across the repo.
The typings check for 4.1 was kept in order to ensure that we don't break g3.

PR Close #41158

integration/BUILD.bazel

@@ -85,12 +85,6 @@ INTEGRATION_TESTS = {
     "service-worker-schema": {},
     "side-effects": {"tags": ["no-ivy-aot"]},
     "terser": {},
-    "typings_test_ts40": {
-        # Special case for `typings_test_ts40` test as we want to pin
-        # `typescript` at version 4.0.x for that test and not link to the
-        # root @npm//typescript package.
-        "pinned_npm_packages": ["typescript"],
-    },
     "typings_test_ts41": {
         # Special case for `typings_test_ts41` test as we want to pin
         # `typescript` at version 4.1.x for that test and not link to the

integration/typings_test_ts40/include-all.ts

@@ -1,69 +0,0 @@
-/**
- * @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 * as animations from '@angular/animations';
-import * as animationsBrowser from '@angular/animations/browser';
-import * as animationsBrowserTesting from '@angular/animations/browser/testing';
-import * as common from '@angular/common';
-import * as commonHttp from '@angular/common/http';
-import * as commonTesting from '@angular/common/testing';
-import * as commonHttpTesting from '@angular/common/testing';
-import * as compiler from '@angular/compiler';
-import * as compilerTesting from '@angular/compiler/testing';
-import * as core from '@angular/core';
-import * as coreTesting from '@angular/core/testing';
-import * as elements from '@angular/elements';
-import * as forms from '@angular/forms';
-import * as platformBrowser from '@angular/platform-browser';
-import * as platformBrowserDynamic from '@angular/platform-browser-dynamic';
-import * as platformBrowserDynamicTesting from '@angular/platform-browser-dynamic/testing';
-import * as platformBrowserAnimations from '@angular/platform-browser/animations';
-import * as platformBrowserTesting from '@angular/platform-browser/testing';
-import * as platformServer from '@angular/platform-server';
-import * as platformServerInit from '@angular/platform-server/init';
-import * as platformServerTesting from '@angular/platform-server/testing';
-import * as router from '@angular/router';
-import * as routerTesting from '@angular/router/testing';
-import * as routerUpgrade from '@angular/router/upgrade';
-import * as serviceWorker from '@angular/service-worker';
-import * as upgrade from '@angular/upgrade';
-import * as upgradeStatic from '@angular/upgrade/static';
-import * as upgradeTesting from '@angular/upgrade/static/testing';
-
-export default {
-  animations,
-  animationsBrowser,
-  animationsBrowserTesting,
-  common,
-  commonTesting,
-  commonHttp,
-  commonHttpTesting,
-  compiler,
-  compilerTesting,
-  core,
-  coreTesting,
-  elements,
-  forms,
-  platformBrowser,
-  platformBrowserTesting,
-  platformBrowserDynamic,
-  platformBrowserDynamicTesting,
-  platformBrowserAnimations,
-  platformServer,
-  platformServerInit,
-  platformServerTesting,
-  router,
-  routerTesting,
-  routerUpgrade,
-  serviceWorker,
-  upgrade,
-  upgradeStatic,
-  upgradeTesting,
-};

integration/typings_test_ts40/package.json

@@ -1,28 +0,0 @@
-{
-  "name": "angular-integration",
-  "description": "Assert that users with TypeScript 4.0 can type-check an Angular application",
-  "version": "0.0.0",
-  "license": "MIT",
-  "dependencies": {
-    "@angular/animations": "file:../../dist/packages-dist/animations",
-    "@angular/common": "file:../../dist/packages-dist/common",
-    "@angular/compiler": "file:../../dist/packages-dist/compiler",
-    "@angular/compiler-cli": "file:../../dist/packages-dist/compiler-cli",
-    "@angular/core": "file:../../dist/packages-dist/core",
-    "@angular/elements": "file:../../dist/packages-dist/elements",
-    "@angular/forms": "file:../../dist/packages-dist/forms",
-    "@angular/platform-browser": "file:../../dist/packages-dist/platform-browser",
-    "@angular/platform-browser-dynamic": "file:../../dist/packages-dist/platform-browser-dynamic",
-    "@angular/platform-server": "file:../../dist/packages-dist/platform-server",
-    "@angular/router": "file:../../dist/packages-dist/router",
-    "@angular/service-worker": "file:../../dist/packages-dist/service-worker",
-    "@angular/upgrade": "file:../../dist/packages-dist/upgrade",
-    "@types/jasmine": "file:../../node_modules/@types/jasmine",
-    "rxjs": "file:../../node_modules/rxjs",
-    "typescript": "4.0.2",
-    "zone.js": "file:../../dist/zone.js-dist/archive/zone.js.tgz"
-  },
-  "scripts": {
-    "test": "tsc"
-  }
-}

integration/typings_test_ts40/tsconfig.json

@@ -1,26 +0,0 @@
-{
-  "compilerOptions": {
-    "forceConsistentCasingInFileNames": true,
-    "strict": true,
-    "noImplicitReturns": true,
-    "noFallthroughCasesInSwitch": true,
-    "experimentalDecorators": true,
-    "module": "commonjs",
-    "moduleResolution": "node",
-    "outDir": "./dist/out-tsc",
-    "rootDir": ".",
-    "target": "es5",
-    "lib": [
-      "es5",
-      "dom",
-      "es2015.collection",
-      "es2015.iterable",
-      "es2015.promise"
-    ],
-    "types": [],
-  },
-  "files": [
-    "include-all.ts",
-    "node_modules/@types/jasmine/index.d.ts"
-  ]
-}

packages/bazel/package.json

@@ -28,7 +28,7 @@
     "@angular/compiler-cli": "0.0.0-PLACEHOLDER",
     "@bazel/typescript": ">=1.0.0",
     "terser": "^4.3.1",
-    "typescript": ">=4.0 <4.3",
+    "typescript": ">=4.2.3 <4.3",
     "rollup": ">=1.20.0",
     "rollup-plugin-commonjs": ">=9.0.0",
     "rollup-plugin-node-resolve": ">=4.2.0",

packages/compiler-cli/package.json

@@ -29,7 +29,7 @@
   },
   "peerDependencies": {
     "@angular/compiler": "0.0.0-PLACEHOLDER",
-    "typescript": ">=4.0 <4.3"
+    "typescript": ">=4.2.3 <4.3"
   },
   "engines": {
     "node": ">=10.0"

packages/compiler-cli/src/typescript_support.ts

@@ -15,7 +15,7 @@ import {compareVersions} from './diagnostics/typescript_version';
  * Note: this check is disabled in g3, search for
  * `angularCompilerOptions.disableTypeScriptVersionCheck` config param value in g3.
  */
-const MIN_TS_VERSION = '4.0.0';
+const MIN_TS_VERSION = '4.2.3';
 
 /**
  * Supremum of supported TypeScript versions