Update to TypeScript v4.3.5

.vscode/launch.json

@@ -12,41 +12,74 @@
             "args": [
                 "build",
                 // Specify we want to debug the "src" target, which won't clean or build -- essentially a "dry-run" of the gulp build
-                "--target", "src"
+                "--target",
+                "src"
             ]
         },
         {
             "type": "node",
             "request": "launch",
             "name": "Debug Unit Tests",
             "cwd": "${workspaceRoot}",
+            "console": "integratedTerminal",
             "program": "${workspaceFolder}/node_modules/.bin/jest",
             "skipFiles": [
                 "<node_internals>/**/*.js",
                 "${workspaceFolder}/node_modules/**/*.js"
             ],
             "env": {
                 "NODE_NO_WARNINGS": "1",
-                "READABLE_STREAM": "disable",
                 "TEST_DOM_STREAMS": "true",
                 "TEST_NODE_STREAMS": "true",
-                // Modify these environment variables to run tests on a specific compilation target + module format combo
-                // "TEST_TS_SOURCE": "true",
-                "TEST_TS_SOURCE": "false",
-                "TEST_TARGET": "es5",
-                "TEST_MODULE": "cjs"
             },
             "args": [
-                "-i",
+                "--verbose",
+                "-runInBand",
                 "--no-cache",
-                "-c", "jestconfigs/jest.src.config.js",
-                // "-c", "jestconfigs/jest.es5.umd.config.js",
-                "spec/iterable/",
-                "spec/asynciterable/",
-                "spec/iterable-operators/",
-                "spec/asynciterable-operators/",
-                // "spec/asynciterable/toobservable-spec.ts"
+                "-c", "jestconfigs/jest.${input:TEST_TARGET}.config.js",
+                "${input:TEST_FILE}"
             ]
         }
-    ]
-}
+    ],
+    "inputs": [
+        {
+            "type": "pickString",
+            "default": "src",
+            "id": "TEST_TARGET",
+            "options": [
+                "src",
+                "ix",
+                "ts",
+                "es5.cjs",
+                "es5.esm",
+                "es5.umd",
+                "es2015.cjs",
+                "es2015.esm",
+                "es2015.umd",
+                "esnext.cjs",
+                "esnext.esm",
+                "esnext.umd",
+            ],
+            "description": "The JS version + Module format combination to test (or src to test source files)",
+        },
+        {
+            "type": "command",
+            "id": "TEST_FILE",
+            "command": "shellCommand.execute",
+            "args": {
+                "cwd": "${workspaceFolder}",
+                "description": "Select a file to debug",
+                "command": "./node_modules/.bin/jest --listTests | sed -r \"s@$PWD/spec/@@g\"",
+            }
+        },
+        {
+            "type": "command",
+            "id": "TEST_RUNTIME_ARGS",
+            "command": "shellCommand.execute",
+            "args": {
+                "useSingleResult": "true",
+                "command": "case \"${input:TEST_TARGET}\" in *cjs | *umd | ix) echo '';; *) echo '--experimental-vm-modules';; esac"
+            }
+        },
+    ],
+}

gulp/closure-task.js

@@ -74,15 +74,17 @@ const closureTask = ((cache) => memoizeTask(cache, async function closure(target
                 `${src}/**/*.js` /* <-- then sources globs  */
             ], { base: `./` }),
             sourcemaps.init(),
-            closureCompiler(createClosureArgs(entry_point, entry, externsPath, getUMDExportName(entry))),
+            closureCompiler(createClosureArgs(target, entry_point, entry, externsPath, getUMDExportName(entry)), {
+                platform: ['native', 'java', 'javascript']
+            }),
             // rename the sourcemaps from *.js.map files to *.min.js.map
             sourcemaps.write(`.`, { mapFile: (mapPath) => mapPath.replace(`.js.map`, `.${target}.min.js.map`) }),
             gulp.dest(out)
         ).toPromise();
     }
 }))({});
 
-const createClosureArgs = (entry_point, output, externs, libraryName) => ({
+const createClosureArgs = (target, entry_point, output, externs, libraryName) => ({
     externs,
     entry_point,
     third_party: true,
@@ -97,8 +99,8 @@ const createClosureArgs = (entry_point, output, externs, libraryName) => ({
     package_json_entry_names: `module,jsnext:main,main`,
     assume_function_wrapper: true,
     js_output_file: `${output}.js`,
-    language_in: gCCLanguageNames[`es2015`],
-    language_out: gCCLanguageNames[`esnext`],
+    language_in: gCCLanguageNames[`esnext`],
+    language_out: gCCLanguageNames[target],
     output_wrapper: `(function (global, factory) {
     typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
     typeof define === 'function' && define.amd ? define(['${libraryName}'], factory) :

gulp/compile-task.js

@@ -19,18 +19,16 @@ const { npmPkgName } = require('./util');
 const { memoizeTask } = require('./memoize-task');
 const { empty: ObservableEmpty } = require('rxjs');
 
-const minifyTask = require('./minify-task');
 const closureTask = require('./closure-task');
 const typescriptTask = require('./typescript-task');
 const { copyMainTask, copyTSTask } = require('./copy-main-task');
 
 const compileTask = ((cache) => memoizeTask(cache, function compile(target, format, ...args) {
-    return target === `src`                    ? ObservableEmpty()
-         : target === npmPkgName               ? copyMainTask(target, format, ...args)()
-         : target === `ts`                     ? copyTSTask(target, format, ...args)()
-         : format === `umd` ? target === `es5` ? closureTask(target, format, ...args)()
-                                               : minifyTask(target, format, ...args)()
-                                               : typescriptTask(target, format, ...args)();
+    return target === `src`      ? ObservableEmpty()
+         : target === npmPkgName ? copyMainTask(target, format, ...args)()
+         : target === `ts`       ? copyTSTask(target, format, ...args)()
+         : format === `umd`      ? closureTask(target, format, ...args)()
+                                 : typescriptTask(target, format, ...args)();
 }))({});
 
 module.exports = compileTask;

gulp/test-task.js

@@ -19,10 +19,18 @@ const path = require('path');
 const { argv } = require('./argv');
 const child_process = require(`child_process`);
 const { memoizeTask } = require('./memoize-task');
+const { targetAndModuleCombinations } = require('./util');
 const asyncDone = require('util').promisify(require('async-done'));
 
-const jestArgv = [];
-argv.verbose && jestArgv.push(`--verbose`);
+const jestArgv = [`--reporters=jest-silent-reporter`];
+
+if (argv.verbose) {
+  jestArgv.push(`--verbose`);
+}
+
+if (targetAndModuleCombinations.length > 1) {
+  jestArgv.push(`--detectOpenHandles`, `--no-cache`);
+}
 
 const jest = path.join(path.parse(require.resolve(`jest`)).dir, `../bin/jest.js`);
 const testOptions = {
@@ -31,27 +39,22 @@ const testOptions = {
         ...process.env,
         // hide fs.promises/stream[Symbol.asyncIterator] warnings
         NODE_NO_WARNINGS: `1`,
-        // prevent the user-land `readable-stream` module from
-        // patching node's streams -- they're better now
-        READABLE_STREAM: `disable`
+        TS_JEST_DISABLE_VER_CHECKER: true
     },
 };
 
 const testTask = ((cache, execArgv, testOptions) => memoizeTask(cache, function test(target, format) {
     const args = [...execArgv];
     const opts = { ...testOptions };
     if (argv.coverage) {
-        args.push(`-c`, `jest.coverage.config.js`, `--coverage`, `--no-cache`);
+        args.push(`-c`, `jest.coverage.config.js`, `--coverage`);
     } else {
         const cfgname = [target, format].filter(Boolean).join('.');
-        args.push(`-c`, `jestconfigs/jest.${cfgname}.config.js`, `-i`, `--no-cache`, `spec/*`);
+        args.push(`-c`, `jestconfigs/jest.${cfgname}.config.js`, `spec/*`);
     }
     opts.env = { ...opts.env,
-        TEST_TARGET: target,
-        TEST_MODULE: format,
         TEST_DOM_STREAMS: (target ==='src' || format === 'umd').toString(),
         TEST_NODE_STREAMS: (target ==='src' || format !== 'umd').toString(),
-        TEST_TS_SOURCE: !!argv.coverage || (target === 'src') || (opts.env.TEST_TS_SOURCE === 'true')
     };
     return asyncDone(() => child_process.spawn(`node`, args, opts));
 }))({}, [jest, ...jestArgv], testOptions);

gulp/util.js

@@ -138,13 +138,19 @@ function shouldRunInChildProcess(target, format) {
 
 const gulp = path.join(path.parse(require.resolve(`gulp`)).dir, `bin/gulp.js`);
 function spawnGulpCommandInChildProcess(command, target, format) {
-    const args = [gulp, command, '-t', target, '-m', format, `--silent`];
-    const opts = {
-        stdio: [`ignore`, `inherit`, `inherit`],
-        env: { ...process.env, NODE_NO_WARNINGS: `1` }
-    };
-    return asyncDone(() => child_process.spawn(`node`, args, opts))
-        .catch((e) => { throw `Error in "${command}:${taskName(target, format)}" task`; });
+    const err = [];
+    return asyncDone(() => {
+        const child = child_process.spawn(
+            `node`,
+            [gulp, command, '-t', target, '-m', format, `-L`],
+            {
+                stdio: [`ignore`, `ignore`, `pipe`],
+                env: { ...process.env, NODE_NO_WARNINGS: `1` }
+            });
+        child.stderr.on('data', (line) => err.push(line));
+        return child;
+    }).catch(() => Promise.reject(err.length > 0 ? err.join('\n')
+            : `Error in "${command}:${taskName(target, format)}" task.`));
 }
 
 const logAndDie = (e) => { if (e) { process.exit(1) } };
@@ -230,5 +236,7 @@ module.exports = {
     gCCLanguageNames, UMDSourceTargets, terserLanguageNames,
 
     taskName, packageName, tsconfigName, targetDir, combinations, observableFromStreams,
-    ESKeywords, esmRequire, shouldRunInChildProcess, spawnGulpCommandInChildProcess, getUMDExportName
+    ESKeywords, esmRequire, shouldRunInChildProcess, spawnGulpCommandInChildProcess, getUMDExportName,
+
+    targetAndModuleCombinations: [...combinations(targets, modules)]
 };

jest.config.js

@@ -17,17 +17,14 @@
 
 module.exports = {
     "verbose": false,
-    "reporters": [
-      ["jest-silent-reporter", { "useDots": true, "showWarnings": true }]
-    ],
     "testEnvironment": "node",
     "globals": {
       "ts-jest": {
         "diagnostics": false,
         "tsConfig": "spec/tsconfig.json"
       }
     },
-    "rootDir": "../",
+    "rootDir": "./",
     "roots": [
       "<rootDir>/spec/"
     ],

jestconfigs/jest.es2015.cjs.config.js

@@ -1,12 +1,13 @@
 module.exports = {
     ...require('../jest.config'),
+    "rootDir": "../",
     "globals": {
         "ts-jest": {
             "diagnostics": false,
-            "tsConfig": "spec/tsconfig/tsconfig.es2015.cjs.json"
+            "tsConfig": "<rootDir>/spec/tsconfig/tsconfig.es2015.cjs.json"
         }
     },
     "moduleNameMapper": {
         "^ix(.*)": "<rootDir>/targets/es2015/cjs$1"
-    }  
+    }
 };

jestconfigs/jest.es2015.esm.config.js

@@ -1,12 +1,13 @@
 module.exports = {
     ...require('../jest.config'),
+    "rootDir": "../",
     "globals": {
         "ts-jest": {
             "diagnostics": false,
-            "tsConfig": "spec/tsconfig/tsconfig.es2015.esm.json"
+            "tsConfig": "<rootDir>/spec/tsconfig/tsconfig.es2015.esm.json"
         }
     },
     "moduleNameMapper": {
         "^ix(.*)": "<rootDir>/targets/es2015/esm$1"
-    }  
+    }
 };