From d792940b01ee1e17e435574e6cf4830b5186245e Mon Sep 17 00:00:00 2001
From: Simen Bekkhus <sbekkhus91@gmail.com>
Date: Wed, 6 Feb 2019 10:18:49 +0100
Subject: [PATCH] Setup building, linting and testing of TypeScript (#7808)

---
 .eslintrc.js                                  |  14 +
 CHANGELOG.md                                  |   2 +
 babel.config.js                               |  16 +-
 .../coverageRemapping.test.js.snap            | 108 ++---
 .../__tests__/typescript.test.ts              |   2 -
 e2e/babel-plugin-jest-hoist/entry.ts          |   1 -
 e2e/coverage-remapping/covered.ts             |   2 +
 e2e/coverage-remapping/package.json           |   8 +-
 e2e/stack-trace-source-maps/package.json      |   4 -
 e2e/typescript-coverage/package.json          |  12 +-
 e2e/typescript-coverage/yarn.lock             |   8 +-
 jest.config.js                                |   2 +-
 package.json                                  |  16 +-
 packages/babel-jest/package.json              |   4 +-
 packages/expect/package.json                  |   3 +
 packages/jest-changed-files/package.json      |   3 +
 packages/jest-circus/package.json             |   2 +
 packages/jest-cli/package.json                |  17 +
 packages/jest-config/package.json             |   5 +
 packages/jest-docblock/package.json           |   3 +
 packages/jest-environment-jsdom/package.json  |   3 +
 packages/jest-haste-map/package.json          |   7 +
 packages/jest-jasmine2/package.json           |   1 +
 packages/jest-leak-detector/package.json      |   1 +
 packages/jest-message-util/package.json       |   5 +
 packages/jest-repl/package.json               |   3 +
 packages/jest-resolve/package.json            |   1 +
 packages/jest-runner/package.json             |   5 +
 packages/jest-runtime/package.json            |   9 +
 packages/jest-snapshot/package.json           |   2 +
 packages/jest-util/package.json               |   4 +
 packages/jest-validate/package.json           |   4 +
 packages/jest-watcher/package.json            |   4 +
 packages/jest-worker/package.json             |   2 +
 packages/pretty-format/package.json           |   2 +
 ...lugin-jest-replace-ts-export-assignment.js |  26 ++
 scripts/browserBuild.js                       |   5 +-
 scripts/build.js                              |  42 +-
 scripts/watch.js                              |  14 +-
 tsconfig.json                                 |  26 ++
 yarn.lock                                     | 402 +++++++++++++++++-
 41 files changed, 686 insertions(+), 114 deletions(-)
 create mode 100644 scripts/babel-plugin-jest-replace-ts-export-assignment.js
 create mode 100644 tsconfig.json

diff --git a/.eslintrc.js b/.eslintrc.js
index 4a3ba1dcff90..d7ed999831eb 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -15,6 +15,19 @@ module.exports = {
     'prettier/flowtype',
   ],
   overrides: [
+    {
+      files: ['*.ts', '*.tsx'],
+      parser: '@typescript-eslint/parser',
+      plugins: ['@typescript-eslint/eslint-plugin'],
+      rules: {
+        '@typescript-eslint/no-unused-vars': [
+          'error',
+          {argsIgnorePattern: '^_'},
+        ],
+        'import/order': 'error',
+        'no-unused-vars': 'off',
+      },
+    },
     // to make it more suitable for running on code examples in docs/ folder
     {
       files: ['*.md'],
@@ -122,6 +135,7 @@ module.exports = {
           '^types/(.*)': './types/$1',
         },
       },
+      'eslint-import-resolver-typescript': true,
     },
   },
 };
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac6595a4dc8b..d039d87a4441 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@
 
 ### Chore & Maintenance
 
+- `[*]`: Setup building, linting and testing of TypeScript ([#7808](https://github.com/facebook/jest/pull/7808))
+
 ### Performance
 
 ## 24.1.0
diff --git a/babel.config.js b/babel.config.js
index cc4688972601..e295ec832457 100644
--- a/babel.config.js
+++ b/babel.config.js
@@ -2,6 +2,21 @@
 
 module.exports = {
   babelrcRoots: ['examples/*'],
+  overrides: [
+    {
+      presets: ['@babel/preset-flow'],
+      test: '**/*.js',
+    },
+    {
+      plugins: [
+        require.resolve(
+          './scripts/babel-plugin-jest-replace-ts-export-assignment.js'
+        ),
+      ],
+      presets: ['@babel/preset-typescript'],
+      test: /\.tsx?$/,
+    },
+  ],
   plugins: [
     ['@babel/plugin-transform-modules-commonjs', {allowTopLevelThis: true}],
     '@babel/plugin-transform-strict-mode',
@@ -14,6 +29,5 @@ module.exports = {
         targets: {node: 6},
       },
     ],
-    '@babel/preset-flow',
   ],
 };
diff --git a/e2e/__tests__/__snapshots__/coverageRemapping.test.js.snap b/e2e/__tests__/__snapshots__/coverageRemapping.test.js.snap
index 3faf7a0a5362..ee84a8e4d887 100644
--- a/e2e/__tests__/__snapshots__/coverageRemapping.test.js.snap
+++ b/e2e/__tests__/__snapshots__/coverageRemapping.test.js.snap
@@ -27,32 +27,32 @@ Object {
         "loc": Object {
           "end": Object {
             "column": 35,
-            "line": 4,
+            "line": 6,
           },
           "start": Object {
             "column": 34,
-            "line": 4,
+            "line": 6,
           },
         },
         "locations": Array [
           Object {
             "end": Object {
               "column": 35,
-              "line": 4,
+              "line": 6,
             },
             "start": Object {
               "column": 34,
-              "line": 4,
+              "line": 6,
             },
           },
           Object {
             "end": Object {
               "column": 39,
-              "line": 4,
+              "line": 6,
             },
             "start": Object {
               "column": 38,
-              "line": 4,
+              "line": 6,
             },
           },
         ],
@@ -62,32 +62,32 @@ Object {
         "loc": Object {
           "end": Object {
             "column": 35,
-            "line": 5,
+            "line": 7,
           },
           "start": Object {
             "column": 34,
-            "line": 5,
+            "line": 7,
           },
         },
         "locations": Array [
           Object {
             "end": Object {
               "column": 35,
-              "line": 5,
+              "line": 7,
             },
             "start": Object {
               "column": 34,
-              "line": 5,
+              "line": 7,
             },
           },
           Object {
             "end": Object {
               "column": 39,
-              "line": 5,
+              "line": 7,
             },
             "start": Object {
               "column": 38,
-              "line": 5,
+              "line": 7,
             },
           },
         ],
@@ -97,42 +97,42 @@ Object {
         "loc": Object {
           "end": Object {
             "column": 31,
-            "line": 6,
+            "line": 8,
           },
           "start": Object {
             "column": 27,
-            "line": 6,
+            "line": 8,
           },
         },
         "locations": Array [
           Object {
             "end": Object {
               "column": 31,
-              "line": 6,
+              "line": 8,
             },
             "start": Object {
               "column": 27,
-              "line": 6,
+              "line": 8,
             },
           },
           Object {
             "end": Object {
               "column": 39,
-              "line": 6,
+              "line": 8,
             },
             "start": Object {
               "column": 35,
-              "line": 6,
+              "line": 8,
             },
           },
           Object {
             "end": Object {
               "column": 48,
-              "line": 6,
+              "line": 8,
             },
             "start": Object {
               "column": 43,
-              "line": 6,
+              "line": 8,
             },
           },
         ],
@@ -142,32 +142,32 @@ Object {
         "loc": Object {
           "end": Object {
             "column": 40,
-            "line": 7,
+            "line": 9,
           },
           "start": Object {
             "column": 30,
-            "line": 7,
+            "line": 9,
           },
         },
         "locations": Array [
           Object {
             "end": Object {
               "column": 40,
-              "line": 7,
+              "line": 9,
             },
             "start": Object {
               "column": 30,
-              "line": 7,
+              "line": 9,
             },
           },
           Object {
             "end": Object {
               "column": 53,
-              "line": 7,
+              "line": 9,
             },
             "start": Object {
               "column": 43,
-              "line": 7,
+              "line": 9,
             },
           },
         ],
@@ -184,21 +184,21 @@ Object {
         "decl": Object {
           "end": Object {
             "column": 29,
-            "line": 3,
+            "line": 5,
           },
           "start": Object {
             "column": 9,
-            "line": 3,
+            "line": 5,
           },
         },
         "loc": Object {
           "end": Object {
             "column": 1,
-            "line": 10,
+            "line": 12,
           },
           "start": Object {
             "column": 49,
-            "line": 3,
+            "line": 5,
           },
         },
         "name": "difference",
@@ -207,21 +207,21 @@ Object {
         "decl": Object {
           "end": Object {
             "column": 36,
-            "line": 7,
+            "line": 9,
           },
           "start": Object {
             "column": 30,
-            "line": 7,
+            "line": 9,
           },
         },
         "loc": Object {
           "end": Object {
             "column": 40,
-            "line": 7,
+            "line": 9,
           },
           "start": Object {
             "column": 30,
-            "line": 7,
+            "line": 9,
           },
         },
         "name": "(anonymous_1)",
@@ -230,21 +230,21 @@ Object {
         "decl": Object {
           "end": Object {
             "column": 49,
-            "line": 7,
+            "line": 9,
           },
           "start": Object {
             "column": 43,
-            "line": 7,
+            "line": 9,
           },
         },
         "loc": Object {
           "end": Object {
             "column": 53,
-            "line": 7,
+            "line": 9,
           },
           "start": Object {
             "column": 43,
-            "line": 7,
+            "line": 9,
           },
         },
         "name": "(anonymous_2)",
@@ -265,81 +265,81 @@ Object {
       "0": Object {
         "end": Object {
           "column": 2,
-          "line": 10,
+          "line": 12,
         },
         "start": Object {
           "column": 0,
-          "line": 3,
+          "line": 5,
         },
       },
       "1": Object {
         "end": Object {
           "column": 39,
-          "line": 4,
+          "line": 6,
         },
         "start": Object {
           "column": 27,
-          "line": 4,
+          "line": 6,
         },
       },
       "2": Object {
         "end": Object {
           "column": 39,
-          "line": 5,
+          "line": 7,
         },
         "start": Object {
           "column": 27,
-          "line": 5,
+          "line": 7,
         },
       },
       "3": Object {
         "end": Object {
           "column": 48,
-          "line": 6,
+          "line": 8,
         },
         "start": Object {
           "column": 27,
-          "line": 6,
+          "line": 8,
         },
       },
       "4": Object {
         "end": Object {
           "column": 53,
-          "line": 7,
+          "line": 9,
         },
         "start": Object {
           "column": 23,
-          "line": 7,
+          "line": 9,
         },
       },
       "5": Object {
         "end": Object {
           "column": 43,
-          "line": 7,
+          "line": 9,
         },
         "start": Object {
           "column": 36,
-          "line": 7,
+          "line": 9,
         },
       },
       "6": Object {
         "end": Object {
           "column": 54,
-          "line": 7,
+          "line": 9,
         },
         "start": Object {
           "column": 49,
-          "line": 7,
+          "line": 9,
         },
       },
       "7": Object {
         "end": Object {
           "column": 15,
-          "line": 9,
+          "line": 11,
         },
         "start": Object {
           "column": 2,
-          "line": 9,
+          "line": 11,
         },
       },
     },
diff --git a/e2e/babel-plugin-jest-hoist/__tests__/typescript.test.ts b/e2e/babel-plugin-jest-hoist/__tests__/typescript.test.ts
index 820294d1973e..ef772b495891 100644
--- a/e2e/babel-plugin-jest-hoist/__tests__/typescript.test.ts
+++ b/e2e/babel-plugin-jest-hoist/__tests__/typescript.test.ts
@@ -7,8 +7,6 @@
  * @emails oncall+jsinfra
  */
 
-/* eslint-disable import/no-unresolved */
-
 import {Color} from '../types';
 import {color} from '../entry';
 
diff --git a/e2e/babel-plugin-jest-hoist/entry.ts b/e2e/babel-plugin-jest-hoist/entry.ts
index 00ed0fce24fa..bafd2d4f8606 100644
--- a/e2e/babel-plugin-jest-hoist/entry.ts
+++ b/e2e/babel-plugin-jest-hoist/entry.ts
@@ -5,7 +5,6 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-// eslint-disable-next-line import/no-unresolved
 import {Color} from './types';
 
 export const color: Color = 'red';
diff --git a/e2e/coverage-remapping/covered.ts b/e2e/coverage-remapping/covered.ts
index a11ac4f3cfb8..84b8f7ab9c2e 100644
--- a/e2e/coverage-remapping/covered.ts
+++ b/e2e/coverage-remapping/covered.ts
@@ -1,5 +1,7 @@
 // Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
 
+/* eslint-disable @typescript-eslint/no-unused-vars */
+
 export = function difference(a: number, b: number): number {
   const branch1: boolean = true ? 1 : 0;
   const branch2: boolean = true ? 1 : 0;
diff --git a/e2e/coverage-remapping/package.json b/e2e/coverage-remapping/package.json
index 293ece57d892..4aaa9f2b751e 100644
--- a/e2e/coverage-remapping/package.json
+++ b/e2e/coverage-remapping/package.json
@@ -4,13 +4,7 @@
     "transform": {
       "^.+\\.(ts|js)$": "<rootDir>/typescriptPreprocessor.js"
     },
-    "testRegex": "/__tests__/.*\\.(ts|tsx|js)$",
-    "testEnvironment": "node",
-    "moduleFileExtensions": [
-      "ts",
-      "tsx",
-      "js"
-    ]
+    "testEnvironment": "node"
   },
   "dependencies": {
     "typescript": "^1.8.10"
diff --git a/e2e/stack-trace-source-maps/package.json b/e2e/stack-trace-source-maps/package.json
index 5a20e78c8014..a5dbb3f82ea9 100644
--- a/e2e/stack-trace-source-maps/package.json
+++ b/e2e/stack-trace-source-maps/package.json
@@ -5,10 +5,6 @@
       "^.+\\.(ts)$": "<rootDir>/preprocessor.js"
     },
     "testEnvironment": "node",
-    "moduleFileExtensions": [
-      "ts",
-      "js"
-    ],
     "testRegex": "fails"
   },
   "dependencies": {
diff --git a/e2e/typescript-coverage/package.json b/e2e/typescript-coverage/package.json
index 667e970829c2..ffe9414a2849 100644
--- a/e2e/typescript-coverage/package.json
+++ b/e2e/typescript-coverage/package.json
@@ -4,17 +4,9 @@
     "transform": {
       "^.+\\.(ts|js)$": "<rootDir>/typescriptPreprocessor.js"
     },
-    "testMatch": [
-      "**/__tests__/*.+(ts|tsx|js)"
-    ],
-    "testEnvironment": "node",
-    "moduleFileExtensions": [
-      "ts",
-      "tsx",
-      "js"
-    ]
+    "testEnvironment": "node"
   },
   "dependencies": {
-    "typescript": "^1.8.10"
+    "typescript": "^3.3.1"
   }
 }
diff --git a/e2e/typescript-coverage/yarn.lock b/e2e/typescript-coverage/yarn.lock
index ea260b12e78a..1cfa31a1591f 100644
--- a/e2e/typescript-coverage/yarn.lock
+++ b/e2e/typescript-coverage/yarn.lock
@@ -2,7 +2,7 @@
 # yarn lockfile v1
 
 
-typescript@^1.8.10:
-  version "1.8.10"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-1.8.10.tgz#b475d6e0dff0bf50f296e5ca6ef9fbb5c7320f1e"
-  integrity sha1-tHXW4N/wv1DyluXKbvn7tccyDx4=
+typescript@^3.3.1:
+  version "3.3.1"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.3.1.tgz#6de14e1db4b8a006ac535e482c8ba018c55f750b"
+  integrity sha512-cTmIDFW7O0IHbn1DPYjkiebHxwtCMU+eTy30ZtJNBPF9j2O1ITu5XH2YnBeVRKWHqF+3JQwWJv0Q0aUgX8W7IA==
diff --git a/jest.config.js b/jest.config.js
index f0c85d2cdb81..999b16dd01ca 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -56,6 +56,6 @@ module.exports = {
     '/e2e/__tests__/iterator-to-null-test.js',
   ],
   transform: {
-    '^.+\\.js$': '<rootDir>/packages/babel-jest',
+    '^.+\\.[jt]sx?$': '<rootDir>/packages/babel-jest',
   },
 };
diff --git a/package.json b/package.json
index 7b1a06e700a2..6c0042975e2b 100644
--- a/package.json
+++ b/package.json
@@ -1,13 +1,19 @@
 {
   "private": true,
   "devDependencies": {
-    "@babel/core": "^7.1.0",
+    "@babel/core": "^7.2.2",
     "@babel/plugin-transform-modules-commonjs": "^7.1.0",
     "@babel/plugin-transform-strict-mode": "^7.0.0",
     "@babel/preset-env": "^7.1.0",
     "@babel/preset-flow": "^7.0.0",
     "@babel/preset-react": "^7.0.0",
+    "@babel/preset-typescript": "^7.0.0",
     "@babel/register": "^7.0.0",
+    "@types/babel__core": "^7.0.0",
+    "@types/babel__generator": "^7.0.0",
+    "@types/babel__template": "^7.0.0",
+    "@typescript-eslint/eslint-plugin": "^1.2.0",
+    "@typescript-eslint/parser": "^1.2.0",
     "ansi-regex": "^4.0.0",
     "ansi-styles": "^3.2.0",
     "babel-eslint": "^9.0.0",
@@ -18,6 +24,7 @@
     "debug": "^4.0.1",
     "eslint": "^5.6.0",
     "eslint-config-prettier": "^3.1.0",
+    "eslint-import-resolver-typescript": "^1.1.1",
     "eslint-plugin-babel": "^5.1.0",
     "eslint-plugin-flowtype": "^2.35.0",
     "eslint-plugin-import": "^2.6.0",
@@ -60,7 +67,7 @@
     "slash": "^2.0.0",
     "string-length": "^2.0.0",
     "strip-ansi": "^5.0.0",
-    "typescript": "^3.0.3",
+    "typescript": "^3.3.1",
     "webpack": "^4.28.4"
   },
   "scripts": {
@@ -71,7 +78,7 @@
     "clean-e2e": "find ./e2e -not \\( -path ./e2e/presets/js -prune \\) -not \\( -path ./e2e/presets/json -prune \\) -mindepth 2 -type d \\( -name node_modules -prune \\) -exec rm -r '{}' +",
     "jest": "node ./packages/jest-cli/bin/jest.js",
     "jest-coverage": "yarn jest --coverage",
-    "lint": "eslint . --cache --report-unused-disable-directives --ext js,md",
+    "lint": "eslint . --cache --report-unused-disable-directives --ext js,jsx,ts,tsx,md",
     "lint-es5-build": "eslint --no-eslintrc --no-ignore --env=browser packages/*/build-es5",
     "lint:md": "yarn --silent lint:md:ci --fix",
     "lint:md:ci": "prettylint '**/*.{md,yml,yaml}' --ignore-path .gitignore",
@@ -110,7 +117,8 @@
           "e2e/*/**/*",
           "website/*.js",
           "website/*/**/*",
-          "eslintImportResolver.js"
+          "eslintImportResolver.js",
+          "babel.config.js"
         ],
         "options": {
           "printWidth": 80,
diff --git a/packages/babel-jest/package.json b/packages/babel-jest/package.json
index 979ee04fb46c..48c4552b1380 100644
--- a/packages/babel-jest/package.json
+++ b/packages/babel-jest/package.json
@@ -16,7 +16,9 @@
     "slash": "^2.0.0"
   },
   "devDependencies": {
-    "@babel/core": "^7.1.0"
+    "@babel/core": "^7.1.0",
+    "@types/babel__core": "^7.0.4",
+    "@types/slash": "^2.0.0"
   },
   "peerDependencies": {
     "@babel/core": "^7.0.0"
diff --git a/packages/expect/package.json b/packages/expect/package.json
index 5e5a75e3fbe8..3f74a119c97e 100644
--- a/packages/expect/package.json
+++ b/packages/expect/package.json
@@ -16,6 +16,9 @@
     "jest-message-util": "^24.0.0",
     "jest-regex-util": "^24.0.0"
   },
+  "devDependencies": {
+    "@types/ansi-styles": "^3.2.1"
+  },
   "engines": {
     "node": ">= 6"
   },
diff --git a/packages/jest-changed-files/package.json b/packages/jest-changed-files/package.json
index 1ae9580994f3..de3d1e78442a 100644
--- a/packages/jest-changed-files/package.json
+++ b/packages/jest-changed-files/package.json
@@ -12,6 +12,9 @@
     "execa": "^1.0.0",
     "throat": "^4.0.0"
   },
+  "devDependencies": {
+    "@types/execa": "^0.9.0"
+  },
   "engines": {
     "node": ">= 6"
   },
diff --git a/packages/jest-circus/package.json b/packages/jest-circus/package.json
index 8298a3252222..7ce23e74d4a0 100644
--- a/packages/jest-circus/package.json
+++ b/packages/jest-circus/package.json
@@ -24,6 +24,8 @@
     "throat": "^4.0.0"
   },
   "devDependencies": {
+    "@types/babel__traverse": "^7.0.4",
+    "@types/stack-utils": "^1.0.1",
     "execa": "^1.0.0",
     "jest-diff": "^24.0.0",
     "jest-runtime": "^24.1.0"
diff --git a/packages/jest-cli/package.json b/packages/jest-cli/package.json
index bc5b2aa3f5a4..90c8e788397b 100644
--- a/packages/jest-cli/package.json
+++ b/packages/jest-cli/package.json
@@ -43,6 +43,23 @@
     "which": "^1.2.12",
     "yargs": "^12.0.2"
   },
+  "devDependencies": {
+    "@types/ansi-escapes": "^3.0.0",
+    "@types/exit": "^0.1.30",
+    "@types/glob": "^7.1.1",
+    "@types/graceful-fs": "^4.1.2",
+    "@types/is-ci": "^1.1.0",
+    "@types/istanbul-lib-coverage": "^1.1.0",
+    "@types/istanbul-lib-instrument": "^1.7.2",
+    "@types/istanbul-lib-source-maps": "^1.2.1",
+    "@types/micromatch": "^3.1.0",
+    "@types/node-notifier": "^0.0.28",
+    "@types/prompts": "^1.2.0",
+    "@types/rimraf": "^2.0.2",
+    "@types/string-length": "^2.0.0",
+    "@types/which": "^1.3.1",
+    "@types/yargs": "^12.0.2"
+  },
   "bin": {
     "jest": "./bin/jest.js"
   },
diff --git a/packages/jest-config/package.json b/packages/jest-config/package.json
index 83e5407b2f6b..c1dc8cde0f46 100644
--- a/packages/jest-config/package.json
+++ b/packages/jest-config/package.json
@@ -25,6 +25,11 @@
     "pretty-format": "^24.0.0",
     "realpath-native": "^1.0.2"
   },
+  "devDependencies":  {
+    "@types/babel__core": "^7.0.4",
+    "@types/glob": "^7.1.1",
+    "@types/micromatch": "^3.1.0"
+  },
   "engines": {
     "node": ">= 6"
   },
diff --git a/packages/jest-docblock/package.json b/packages/jest-docblock/package.json
index 7c3c5eb93966..464789183d14 100644
--- a/packages/jest-docblock/package.json
+++ b/packages/jest-docblock/package.json
@@ -11,6 +11,9 @@
   "dependencies": {
     "detect-newline": "^2.1.0"
   },
+  "devDependencies":  {
+    "@types/detect-newline": "^2.1.0"
+  },
   "engines": {
     "node": ">= 6"
   },
diff --git a/packages/jest-environment-jsdom/package.json b/packages/jest-environment-jsdom/package.json
index 92012d65b2ae..0fb34d1b04f9 100644
--- a/packages/jest-environment-jsdom/package.json
+++ b/packages/jest-environment-jsdom/package.json
@@ -13,6 +13,9 @@
     "jest-util": "^24.0.0",
     "jsdom": "^11.5.1"
   },
+  "devDependencies":  {
+    "@types/jsdom": "^11.12.0"
+  },
   "engines": {
     "node": ">= 6"
   },
diff --git a/packages/jest-haste-map/package.json b/packages/jest-haste-map/package.json
index 346c9b395442..1daf9e83bee0 100644
--- a/packages/jest-haste-map/package.json
+++ b/packages/jest-haste-map/package.json
@@ -18,6 +18,13 @@
     "micromatch": "^3.1.10",
     "sane": "^3.0.0"
   },
+  "devDependencies":  {
+    "@types/fb-watchman": "^2.0.0",
+    "@types/graceful-fs": "^4.1.2",
+    "@types/invariant": "^2.2.29",
+    "@types/micromatch": "^3.1.0",
+    "@types/sane": "^2.0.0"
+  },
   "engines": {
     "node": ">= 6"
   },
diff --git a/packages/jest-jasmine2/package.json b/packages/jest-jasmine2/package.json
index 1ed3e1eb7cfe..562d0d5397e5 100644
--- a/packages/jest-jasmine2/package.json
+++ b/packages/jest-jasmine2/package.json
@@ -23,6 +23,7 @@
     "throat": "^4.0.0"
   },
   "devDependencies": {
+    "@types/babel__traverse": "^7.0.4",
     "jest-diff": "^24.0.0",
     "jest-runtime": "^24.1.0"
   },
diff --git a/packages/jest-leak-detector/package.json b/packages/jest-leak-detector/package.json
index 9db8dd393ce4..434f904dcf62 100644
--- a/packages/jest-leak-detector/package.json
+++ b/packages/jest-leak-detector/package.json
@@ -12,6 +12,7 @@
     "pretty-format": "^24.0.0"
   },
   "devDependencies": {
+    "@types/weak": "^1.0.0",
     "weak": "^1.0.1"
   },
   "engines": {
diff --git a/packages/jest-message-util/package.json b/packages/jest-message-util/package.json
index 45e32e2e6f64..e61c38de40c1 100644
--- a/packages/jest-message-util/package.json
+++ b/packages/jest-message-util/package.json
@@ -18,5 +18,10 @@
     "slash": "^2.0.0",
     "stack-utils": "^1.0.1"
   },
+  "devDependencies":  {
+    "@types/babel__code-frame": "^7.0.0",
+    "@types/micromatch": "^3.1.0",
+    "@types/stack-utils": "^1.0.1"
+  },
   "gitHead": "634e5a54f46b2a62d1dc81a170562e6f4e55ad60"
 }
diff --git a/packages/jest-repl/package.json b/packages/jest-repl/package.json
index 4b96382132ab..8c9abb3ec472 100644
--- a/packages/jest-repl/package.json
+++ b/packages/jest-repl/package.json
@@ -15,6 +15,9 @@
     "repl": "^0.1.3",
     "yargs": "^12.0.2"
   },
+  "devDependencies":  {
+    "@types/yargs": "^12.0.2"
+  },
   "bin": {
     "jest-repl": "./bin/jest-repl.js"
   },
diff --git a/packages/jest-resolve/package.json b/packages/jest-resolve/package.json
index 696170cd90ec..d44ad9c6b183 100644
--- a/packages/jest-resolve/package.json
+++ b/packages/jest-resolve/package.json
@@ -14,6 +14,7 @@
     "realpath-native": "^1.0.0"
   },
   "devDependencies": {
+    "@types/browser-resolve": "^0.0.5",
     "jest-haste-map": "^24.0.0"
   },
   "engines": {
diff --git a/packages/jest-runner/package.json b/packages/jest-runner/package.json
index a8583affb503..98ecf80ca1e7 100644
--- a/packages/jest-runner/package.json
+++ b/packages/jest-runner/package.json
@@ -24,6 +24,11 @@
     "source-map-support": "^0.5.6",
     "throat": "^4.0.0"
   },
+  "devDependencies":  {
+    "@types/exit": "^0.1.30",
+    "@types/graceful-fs": "^4.1.2",
+    "@types/source-map-support": "^0.4.1"
+  },
   "engines": {
     "node": ">= 6"
   },
diff --git a/packages/jest-runtime/package.json b/packages/jest-runtime/package.json
index 15913207fe44..2bfa2989ad6d 100644
--- a/packages/jest-runtime/package.json
+++ b/packages/jest-runtime/package.json
@@ -33,6 +33,15 @@
     "yargs": "^12.0.2"
   },
   "devDependencies": {
+    "@types/babel__core": "^7.0.4",
+    "@types/convert-source-map": "^1.5.1",
+    "@types/exit": "^0.1.30",
+    "@types/glob": "^7.1.1",
+    "@types/graceful-fs": "^4.1.2",
+    "@types/micromatch": "^3.1.0",
+    "@types/strip-bom": "3.0.0",
+    "@types/write-file-atomic": "^2.1.1",
+    "@types/yargs": "^12.0.2",
     "jest-environment-jsdom": "^24.0.0",
     "jest-environment-node": "^24.0.0"
   },
diff --git a/packages/jest-snapshot/package.json b/packages/jest-snapshot/package.json
index 7740aa3fde00..43c27d8bbab0 100644
--- a/packages/jest-snapshot/package.json
+++ b/packages/jest-snapshot/package.json
@@ -21,6 +21,8 @@
     "semver": "^5.5.0"
   },
   "devDependencies": {
+    "@types/mkdirp": "^0.5.2",
+    "@types/semver": "^5.5.0",
     "prettier": "^1.13.4"
   },
   "engines": {
diff --git a/packages/jest-util/package.json b/packages/jest-util/package.json
index db4a4a311ba5..85f3410824a8 100644
--- a/packages/jest-util/package.json
+++ b/packages/jest-util/package.json
@@ -19,6 +19,10 @@
     "source-map": "^0.6.0"
   },
   "devDependencies": {
+    "@types/callsites": "^2.0.0",
+    "@types/graceful-fs": "^4.1.2",
+    "@types/is-ci": "^1.0.10",
+    "@types/mkdirp": "^0.5.2",
     "jest-mock": "^24.0.0"
   },
   "engines": {
diff --git a/packages/jest-validate/package.json b/packages/jest-validate/package.json
index f3c9508eeaf8..2186f1af66c3 100644
--- a/packages/jest-validate/package.json
+++ b/packages/jest-validate/package.json
@@ -15,6 +15,10 @@
     "leven": "^2.1.0",
     "pretty-format": "^24.0.0"
   },
+  "devDependencies":  {
+    "@types/camelcase": "^4.1.0",
+    "@types/leven": "^2.1.1"
+  },
   "engines": {
     "node": ">= 6"
   },
diff --git a/packages/jest-watcher/package.json b/packages/jest-watcher/package.json
index 3abb4ba0bcda..351a6c7ec3da 100644
--- a/packages/jest-watcher/package.json
+++ b/packages/jest-watcher/package.json
@@ -9,6 +9,10 @@
     "jest-util": "^24.0.0",
     "string-length": "^2.0.0"
   },
+  "devDependencies":  {
+    "@types/ansi-escapes": "^3.0.0",
+    "@types/string-length": "^2.0.0"
+  },
   "repository": {
     "type": "git",
     "url": "https://github.com/facebook/jest",
diff --git a/packages/jest-worker/package.json b/packages/jest-worker/package.json
index 7b02f58e07ff..b993e76c65da 100644
--- a/packages/jest-worker/package.json
+++ b/packages/jest-worker/package.json
@@ -13,6 +13,8 @@
     "supports-color": "^6.1.0"
   },
   "devDependencies": {
+    "@types/merge-stream": "^1.1.2",
+    "@types/supports-color": "^5.3.0",
     "worker-farm": "^1.6.0"
   },
   "engines": {
diff --git a/packages/pretty-format/package.json b/packages/pretty-format/package.json
index 30914be8fa59..c9d7fedc45b7 100644
--- a/packages/pretty-format/package.json
+++ b/packages/pretty-format/package.json
@@ -16,6 +16,8 @@
     "ansi-styles": "^3.2.0"
   },
   "devDependencies": {
+    "@types/ansi-regex": "^4.0.0",
+    "@types/ansi-styles": "^3.2.1",
     "immutable": "4.0.0-rc.9",
     "react": "*",
     "react-dom": "*",
diff --git a/scripts/babel-plugin-jest-replace-ts-export-assignment.js b/scripts/babel-plugin-jest-replace-ts-export-assignment.js
new file mode 100644
index 000000000000..65722500d5cc
--- /dev/null
+++ b/scripts/babel-plugin-jest-replace-ts-export-assignment.js
@@ -0,0 +1,26 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+// Replace `export =` with `module.exports` which allows us to keep CJS semantics
+
+module.exports = ({template}) => {
+  const moduleExportsDeclaration = template(`
+    module.exports = ASSIGNMENT;
+  `);
+  return {
+    name: 'jest-replace-ts-export-assignment',
+    visitor: {
+      TSExportAssignment(path) {
+        path.replaceWith(
+          moduleExportsDeclaration({ASSIGNMENT: path.node.expression})
+        );
+      },
+    },
+  };
+};
diff --git a/scripts/browserBuild.js b/scripts/browserBuild.js
index 60f9c75c65d4..7ca65961a13e 100644
--- a/scripts/browserBuild.js
+++ b/scripts/browserBuild.js
@@ -11,10 +11,13 @@ const webpack = require('webpack');
 const camelCase = require('camelcase');
 const rimraf = require('rimraf');
 
+const transformOptions = require('../babel.config.js');
+
 const babelEs5Options = {
   // Dont load other config files
   babelrc: false,
   configFile: false,
+  overrides: transformOptions.overrides,
   plugins: ['@babel/plugin-transform-strict-mode'],
   presets: [
     [
@@ -27,7 +30,6 @@ const babelEs5Options = {
         targets: 'IE 11',
       },
     ],
-    '@babel/preset-flow',
   ],
 };
 
@@ -63,6 +65,7 @@ function browserBuild(pkgName, entryPath, destination) {
               '../packages/expect/build/fakeChalk.js'
             ),
           },
+          extensions: ['.js', '.json', '.ts'],
         },
         node: {
           fs: 'empty',
diff --git a/scripts/build.js b/scripts/build.js
index 503e8a087ddb..78d67bdbec5f 100644
--- a/scripts/build.js
+++ b/scripts/build.js
@@ -15,7 +15,7 @@
  *  node ./scripts/build.js
  *  node ./scripts/build.js /users/123/jest/packages/jest-111/src/111.js
  *
- * NOTE: this script is node@4 compatible
+ * NOTE: this script is node@6 compatible
  */
 
 'use strict';
@@ -24,6 +24,7 @@ const fs = require('fs');
 const path = require('path');
 const glob = require('glob');
 const mkdirp = require('mkdirp');
+const execa = require('execa');
 
 const babel = require('@babel/core');
 const chalk = require('chalk');
@@ -38,13 +39,13 @@ const SRC_DIR = 'src';
 const BUILD_DIR = 'build';
 const BUILD_ES5_DIR = 'build-es5';
 const JS_FILES_PATTERN = '**/*.js';
+const TS_FILES_PATTERN = '**/*.ts';
 const IGNORE_PATTERN = '**/__{tests,mocks}__/**';
 const PACKAGES_DIR = path.resolve(__dirname, '../packages');
 
 const INLINE_REQUIRE_BLACKLIST = /packages\/expect|(jest-(circus|diff|get-type|jasmine2|matcher-utils|message-util|regex-util|snapshot))|pretty-format\//;
 
 const transformOptions = require('../babel.config.js');
-transformOptions.babelrc = false;
 
 const prettierConfig = prettier.resolveConfig.sync(__filename);
 prettierConfig.trailingComma = 'none';
@@ -73,19 +74,18 @@ function getBuildPath(file, buildFolder) {
   const pkgSrcPath = path.resolve(PACKAGES_DIR, pkgName, SRC_DIR);
   const pkgBuildPath = path.resolve(PACKAGES_DIR, pkgName, buildFolder);
   const relativeToSrcPath = path.relative(pkgSrcPath, file);
-  return path.resolve(pkgBuildPath, relativeToSrcPath);
+  return path.resolve(pkgBuildPath, relativeToSrcPath).replace(/\.ts$/, '.js');
 }
 
 function buildNodePackage(p) {
   const srcDir = path.resolve(p, SRC_DIR);
   const pattern = path.resolve(srcDir, '**/*');
-  const files = glob.sync(pattern, {
-    nodir: true,
-  });
+  const files = glob.sync(pattern, {nodir: true});
 
   process.stdout.write(adjustToTerminalWidth(`${path.basename(p)}\n`));
 
   files.forEach(file => buildFile(file, true));
+
   process.stdout.write(`${OK}\n`);
 }
 
@@ -104,11 +104,13 @@ function buildBrowserPackage(p) {
         `browser field for ${pkgJsonPath} should start with "${BUILD_ES5_DIR}"`
       );
     }
-    browserBuild(
-      p.split('/').pop(),
-      path.resolve(srcDir, 'index.js'),
-      path.resolve(p, browser)
-    )
+    let indexFile = path.resolve(srcDir, 'index.js');
+
+    if (!fs.existsSync(indexFile)) {
+      indexFile = indexFile.replace(/\.js$/, '.ts');
+    }
+
+    browserBuild(p.split('/').pop(), indexFile, path.resolve(p, browser))
       .then(() => {
         process.stdout.write(adjustToTerminalWidth(`${path.basename(p)}\n`));
         process.stdout.write(`${OK}\n`);
@@ -134,7 +136,10 @@ function buildFile(file, silent) {
   }
 
   mkdirp.sync(path.dirname(destPath), '777');
-  if (!micromatch.isMatch(file, JS_FILES_PATTERN)) {
+  if (
+    !micromatch.isMatch(file, JS_FILES_PATTERN) &&
+    !micromatch.isMatch(file, TS_FILES_PATTERN)
+  ) {
     fs.createReadStream(file).pipe(fs.createWriteStream(destPath));
     silent ||
       process.stdout.write(
@@ -186,10 +191,23 @@ function buildFile(file, silent) {
 
 const files = process.argv.slice(2);
 
+function compileTypes(packages) {
+  const packageWithTs = packages.filter(p =>
+    fs.existsSync(path.resolve(p, 'tsconfig.json'))
+  );
+
+  if (packageWithTs.length > 0) {
+    execa.sync('tsc', ['-b', ...packageWithTs]);
+  }
+}
+
 if (files.length) {
   files.forEach(buildFile);
 } else {
   const packages = getPackages();
+  process.stdout.write(chalk.inverse(' Typechecking \n'));
+  compileTypes(packages);
+  process.stdout.write(`${OK}\n\n`);
   process.stdout.write(chalk.inverse(' Building packages \n'));
   packages.forEach(buildNodePackage);
   process.stdout.write('\n');
diff --git a/scripts/watch.js b/scripts/watch.js
index e26e24241cde..b40d670643b5 100644
--- a/scripts/watch.js
+++ b/scripts/watch.js
@@ -13,6 +13,7 @@ const fs = require('fs');
 const {execSync} = require('child_process');
 const path = require('path');
 const chalk = require('chalk');
+const execa = require('execa');
 const getPackages = require('./getPackages');
 
 const BUILD_CMD = `node ${path.resolve(__dirname, './build.js')}`;
@@ -27,11 +28,12 @@ const exists = filename => {
 };
 const rebuild = filename => filesToBuild.set(filename, true);
 
-getPackages().forEach(p => {
+const packages = getPackages();
+packages.forEach(p => {
   const srcDir = path.resolve(p, 'src');
   try {
     fs.accessSync(srcDir, fs.F_OK);
-    fs.watch(path.resolve(p, 'src'), {recursive: true}, (event, filename) => {
+    fs.watch(srcDir, {recursive: true}, (event, filename) => {
       const filePath = path.resolve(srcDir, filename);
 
       if ((event === 'change' || event === 'rename') && exists(filePath)) {
@@ -55,6 +57,14 @@ getPackages().forEach(p => {
   }
 });
 
+const packageWithTs = packages.filter(p =>
+  fs.existsSync(path.resolve(p, 'tsconfig.json'))
+);
+
+if (packageWithTs.length > 0) {
+  execa('tsc', ['-b', ...packageWithTs, '--watch']);
+}
+
 setInterval(() => {
   const files = Array.from(filesToBuild.keys());
   if (files.length) {
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 000000000000..6b1f7373d1ab
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,26 @@
+{
+  "compilerOptions": {
+    "target": "es2017",
+    "module": "commonjs",
+    "lib": ["dom", "es2017"],
+    "declaration": true,
+    "declarationMap": true,
+    "composite": true,
+    "emitDeclarationOnly": true,
+    // "importHelpers": true,
+    // "isolatedModules": true,
+
+    "strict": true,
+
+    /* Additional Checks */
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true,
+
+    /* Module Resolution Options */
+    "moduleResolution": "node",
+    "esModuleInterop": true
+  },
+  "exclude": ["**/__tests__/**/*", "**/build/**/*", "**/build-es5/**/*"]
+}
diff --git a/yarn.lock b/yarn.lock
index 9dfdd03de271..ffc57a710145 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9,7 +9,7 @@
   dependencies:
     "@babel/highlight" "^7.0.0"
 
-"@babel/core@*", "@babel/core@^7.0.0", "@babel/core@^7.1.0":
+"@babel/core@*", "@babel/core@^7.0.0", "@babel/core@^7.1.0", "@babel/core@^7.2.2":
   version "7.2.2"
   resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.2.2.tgz#07adba6dde27bb5ad8d8672f15fde3e08184a687"
   integrity sha512-59vB0RWt09cAct5EIe58+NzGP4TFSD3Bz//2/ELy3ZeTeKF6VTD1AXlH8BGGbCX0PuobZBsIzO7IAI9PH67eKw==
@@ -232,7 +232,7 @@
     esutils "^2.0.2"
     js-tokens "^4.0.0"
 
-"@babel/parser@^7.0.0", "@babel/parser@^7.2.2", "@babel/parser@^7.2.3":
+"@babel/parser@^7.0.0", "@babel/parser@^7.1.0", "@babel/parser@^7.2.2", "@babel/parser@^7.2.3":
   version "7.2.3"
   resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.2.3.tgz#32f5df65744b70888d17872ec106b02434ba1489"
   integrity sha512-0LyEcVlfCoFmci8mXx8A5oIkpkOgyo8dRHtxBnK9RRBwxO2+JZPNsqtVEZQ7mJFPxnXF9lfmU24mHOPI0qnlkA==
@@ -786,7 +786,7 @@
     "@babel/plugin-transform-react-jsx-self" "^7.0.0"
     "@babel/plugin-transform-react-jsx-source" "^7.0.0"
 
-"@babel/preset-typescript@*":
+"@babel/preset-typescript@*", "@babel/preset-typescript@^7.0.0":
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/@babel/preset-typescript/-/preset-typescript-7.1.0.tgz#49ad6e2084ff0bfb5f1f7fb3b5e76c434d442c7f"
   integrity sha512-LYveByuF9AOM8WrsNne5+N79k1YxjNB6gmpCQsnuSBAcV8QUeB+ZUxQzL7Rz7HksPbahymKkq2qBR+o36ggFZA==
@@ -1462,26 +1462,366 @@
   resolved "https://registry.yarnpkg.com/@sindresorhus/is/-/is-0.7.0.tgz#9a06f4f137ee84d7df0460c1fdb1135ffa6c50fd"
   integrity sha512-ONhaKPIufzzrlNbqtWFFd+jlnemX6lJAgq9ZeiZtS7I1PIf/la7CW4m83rTXRnVnsMbW2k56pGYu7AUFJD9Pow==
 
+"@types/ansi-escapes@^3.0.0":
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/@types/ansi-escapes/-/ansi-escapes-3.0.0.tgz#619bbc6d46fc75da6d784e53b5a25d2efff07108"
+  integrity sha512-aamJrX6PdmIO8E9qhZaYmXiMGXwnkF2lcga/VbqLf8g90aaKGZ4cSFP5AabqxAbmp0h69C9yE3a4fUBtVpqtmg==
+  dependencies:
+    "@types/node" "*"
+
+"@types/ansi-regex@^4.0.0":
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/@types/ansi-regex/-/ansi-regex-4.0.0.tgz#cb20bb66da7700ea9b26f16971f03f0e092eddad"
+  integrity sha512-r1W316vjsZXn1/csLC4HcCJs6jIHIzksHJd7xx+Dl+PAb0S2Dh9cR8ZsIMEfGmbBtP7JNWlf2KKahSkDP6rg3g==
+
+"@types/ansi-styles@^3.2.1":
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/@types/ansi-styles/-/ansi-styles-3.2.1.tgz#49e996bb6e0b7957ca831205df31eb9a0702492c"
+  integrity sha512-UFa7mfKgSutXdT+elzJo8Ulr7FHgLNAyglVIOZYXFNJVQERm8DPrcwPret5BYk66LBE7fwm1XoVGi76MJkQ6ow==
+  dependencies:
+    "@types/color-name" "*"
+
+"@types/babel-types@*":
+  version "7.0.4"
+  resolved "https://registry.yarnpkg.com/@types/babel-types/-/babel-types-7.0.4.tgz#bfd5b0d0d1ba13e351dff65b6e52783b816826c8"
+  integrity sha512-WiZhq3SVJHFRgRYLXvpf65XnV6ipVHhnNaNvE8yCimejrGglkg38kEj0JcizqwSHxmPSjcTlig/6JouxLGEhGw==
+
+"@types/babel__code-frame@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@types/babel__code-frame/-/babel__code-frame-7.0.0.tgz#d5658827984c1e386c1b4ef30699b344d3f732a2"
+  integrity sha512-Rt0KuqopAdtpyvxO0JbKbwgtw7B+y0NQpTXns+tiz1lqGXywOESSKIiiQt0wnCreqEKvmrArH7KZ6bQg+w8BoA==
+
+"@types/babel__core@^7.0.0", "@types/babel__core@^7.0.4":
+  version "7.0.4"
+  resolved "https://registry.yarnpkg.com/@types/babel__core/-/babel__core-7.0.4.tgz#14b30c11113bad353cabfaea73e327b48edb0f0e"
+  integrity sha512-2Y2RK1BN5BRFfhneGfQA8mmFmTANbzGgS5uQPluoRqGNWb6uAcefqxzNbqgxPpmPkLqKapQfmYcyyl5iAQV+fA==
+  dependencies:
+    "@babel/parser" "^7.1.0"
+    "@babel/types" "^7.0.0"
+
+"@types/babel__generator@^7.0.0":
+  version "7.0.1"
+  resolved "https://registry.yarnpkg.com/@types/babel__generator/-/babel__generator-7.0.1.tgz#533bd37e7be8af27ebf8fcc0a053cfa4c03f4c5c"
+  integrity sha512-QZ+oM5v3lAh/4DqWDyCL0rVi/BJlKRANDEpShxt3Lg+rhbFA78Ec7N+8lcAIpziA/Mfp/1ShDJj2Ti3HJ/JPxA==
+  dependencies:
+    "@babel/types" "^7.0.0"
+
+"@types/babel__template@^7.0.0":
+  version "7.0.1"
+  resolved "https://registry.yarnpkg.com/@types/babel__template/-/babel__template-7.0.1.tgz#8de6effa729bf0b0f65eb72399b629a3998a7f10"
+  integrity sha512-LT1zwkpL0/2oBP+npLaOCYSWv47cxbdAvONutjalMdCIBfjtfzVNnT8rgllBmsr15QAdAZDOmYw1CPhLB2JCtA==
+  dependencies:
+    "@babel/parser" "^7.1.0"
+    "@babel/types" "^7.0.0"
+
+"@types/babel__traverse@^7.0.4":
+  version "7.0.4"
+  resolved "https://registry.yarnpkg.com/@types/babel__traverse/-/babel__traverse-7.0.4.tgz#de652399bd8493ab712e4d6b68031b7a2f72ad5f"
+  integrity sha512-2vARZYqR4Flf59WtqMfa9GgbOjK04xLZaN9+CMf7Cs+4cAhxZBP3K9LYRzsWxOQe402VvqX9+7DdXxB72ujEOg==
+  dependencies:
+    "@babel/types" "^7.0.0"
+
+"@types/braces@*":
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/@types/braces/-/braces-2.3.0.tgz#d00ec0a76562b2acb6f29330be33a093e33ed25c"
+  integrity sha512-A3MV5EsLHgShHoJ/XES/fQAnwNISKLrFuH9eNBZY5OkTQB7JPIwbRoExvRpDsNABvkMojnKqKWS8x0m2rLYi+A==
+
+"@types/browser-resolve@^0.0.5":
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/@types/browser-resolve/-/browser-resolve-0.0.5.tgz#4d7ea4babcbfa45752a5cdc016c0a0fc4dc4de7d"
+  integrity sha512-3XKWKoP/RsU2Ewg9v2rkE1qmAbKIFR6nxFOsDhY2/J1u3zyDP+2vovKI/7tX1b9RqshAwQiiCsLyQr3dIGw9/w==
+  dependencies:
+    "@types/resolve" "*"
+
+"@types/callsites@^2.0.0":
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/@types/callsites/-/callsites-2.0.0.tgz#df0db68ea34053651caee9975294be902fd04751"
+  integrity sha512-kUvhIE1ZlV4dYEyFnZ2lJLXMEOc7eLN6ejolVBQm0boUCX2t6p0M2nx+20UkEtDMJYtRQffuhcwO1h/U029QAw==
+
+"@types/camelcase@^4.1.0":
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/@types/camelcase/-/camelcase-4.1.0.tgz#e054f7986f31658d49936261b5cd4588ef29d1ee"
+  integrity sha512-nsaprOtNLvUrLyFX5+mRpE9h2Q0d5YzQRr+Lav3fxdYtc1/E/U7G+Ld861NWBDDtWY3MnwKoUOhCrE1nrVxUQA==
+
 "@types/cheerio@^0.22.8":
   version "0.22.10"
   resolved "https://registry.yarnpkg.com/@types/cheerio/-/cheerio-0.22.10.tgz#780d552467824be4a241b29510a7873a7432c4a6"
   integrity sha512-fOM/Jhv51iyugY7KOBZz2ThfT1gwvsGCfWxpLpZDgkGjpEO4Le9cld07OdskikLjDUQJ43dzDaVRSFwQlpdqVg==
 
+"@types/color-name@*":
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/@types/color-name/-/color-name-1.1.0.tgz#926f76f7e66f49cc59ad880bb15b030abbf0b66d"
+  integrity sha512-gZ/Rb+MFXF0pXSEQxdRoPMm5jeO3TycjOdvbpbcpHX/B+n9AqaHFe5q6Ga9CsZ7ir/UgIWPfrBzUzn3F19VH/w==
+
+"@types/convert-source-map@^1.5.1":
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/@types/convert-source-map/-/convert-source-map-1.5.1.tgz#d4d180dd6adc5cb68ad99bd56e03d637881f4616"
+  integrity sha512-laiDIXqqthjJlyAMYAXOtN3N8+UlbM+KvZi4BaY5ZOekmVkBs/UxfK5O0HWeJVG2eW8F+Mu2ww13fTX+kY1FlQ==
+
+"@types/detect-newline@^2.1.0":
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/@types/detect-newline/-/detect-newline-2.1.0.tgz#1896b5651b473792b6aba2500270fda626bc38d0"
+  integrity sha512-vcHS4yQkTfy+8QISuAFS+2SCjNcGs37+CWzxrrIOMv7yvPnYd6f1AeUErVEHVCu8dZreAHUqzV8RrjzeBorvtQ==
+
+"@types/events@*":
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@types/events/-/events-1.2.0.tgz#81a6731ce4df43619e5c8c945383b3e62a89ea86"
+  integrity sha512-KEIlhXnIutzKwRbQkGWb/I4HFqBuUykAdHgDED6xqwXJfONCjF5VoE0cXEiurh3XauygxzeDzgtXUqvLkxFzzA==
+
+"@types/execa@^0.9.0":
+  version "0.9.0"
+  resolved "https://registry.yarnpkg.com/@types/execa/-/execa-0.9.0.tgz#9b025d2755f17e80beaf9368c3f4f319d8b0fb93"
+  integrity sha512-mgfd93RhzjYBUHHV532turHC2j4l/qxsF/PbfDmprHDEUHmNZGlDn1CEsulGK3AfsPdhkWzZQT/S/k0UGhLGsA==
+  dependencies:
+    "@types/node" "*"
+
+"@types/exit@^0.1.30":
+  version "0.1.30"
+  resolved "https://registry.yarnpkg.com/@types/exit/-/exit-0.1.30.tgz#7078b736a7d166c80b6394dc0d9de1577ca76daf"
+  integrity sha1-cHi3NqfRZsgLY5TcDZ3hV3ynba8=
+
+"@types/fb-watchman@^2.0.0":
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/@types/fb-watchman/-/fb-watchman-2.0.0.tgz#ca60ded406baa8c81c65ac1f86763a5d00aa7c55"
+  integrity sha512-Ao2jlksPEUGCEXBvJz5e2MuDpYUtxXgtUk45cg0g5Mmy4f0j7bQuDlOlqBMgKGRl9dZAK4ZTzFtukuzj2mURlQ==
+  dependencies:
+    "@types/events" "*"
+
+"@types/glob@*", "@types/glob@^7.1.1":
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/@types/glob/-/glob-7.1.1.tgz#aa59a1c6e3fbc421e07ccd31a944c30eba521575"
+  integrity sha512-1Bh06cbWJUHMC97acuD6UMG29nMt0Aqz1vF3guLfG+kHHJhy3AyohZFFxYk2f7Q1SQIrNwvncxAE0N/9s70F2w==
+  dependencies:
+    "@types/events" "*"
+    "@types/minimatch" "*"
+    "@types/node" "*"
+
+"@types/graceful-fs@^4.1.2":
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/@types/graceful-fs/-/graceful-fs-4.1.2.tgz#fbc9575dbcc6d1d91dd768d30c5fc0c19f6c50bd"
+  integrity sha512-epDhsJAVxJsWfeqpzEDFhLnhHMbHie/VMFY+2Hvt5p7FemeW5ELM+6gcVYL/ZsUwdu3zrWpDE3VUTddXW+EMYg==
+  dependencies:
+    "@types/node" "*"
+
+"@types/invariant@^2.2.29":
+  version "2.2.29"
+  resolved "https://registry.yarnpkg.com/@types/invariant/-/invariant-2.2.29.tgz#aa845204cd0a289f65d47e0de63a6a815e30cc66"
+  integrity sha512-lRVw09gOvgviOfeUrKc/pmTiRZ7g7oDOU6OAutyuSHpm1/o2RaBQvRhgK8QEdu+FFuw/wnWb29A/iuxv9i8OpQ==
+
+"@types/is-ci@^1.0.10", "@types/is-ci@^1.1.0":
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/@types/is-ci/-/is-ci-1.1.0.tgz#583c5fbfcc461be9971106b9558930d67df49227"
+  integrity sha512-NbyqP5D4hwl5UWnnW4Cz0gIRjhecgx/9OApcCIpp4+tjqjROGf/NBcKKDfbI3YFBTTkD3JBshiNSv5V7VoVJJg==
+
+"@types/istanbul-lib-coverage@*", "@types/istanbul-lib-coverage@^1.1.0":
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-1.1.0.tgz#2cc2ca41051498382b43157c8227fea60363f94a"
+  integrity sha512-ohkhb9LehJy+PA40rDtGAji61NCgdtKLAlFoYp4cnuuQEswwdK3vz9SOIkkyc3wrk8dzjphQApNs56yyXLStaQ==
+
+"@types/istanbul-lib-instrument@^1.7.2":
+  version "1.7.2"
+  resolved "https://registry.yarnpkg.com/@types/istanbul-lib-instrument/-/istanbul-lib-instrument-1.7.2.tgz#44e61372876597e361148a84537be402f4c9e972"
+  integrity sha512-SWIpdKneXqThfrKIokt9dXSPeslS2NWcxhtr+/a2+N81aLyOMAsVTMmwaKuCoEahcI0FfhY3/79AR6Vilk9i8A==
+  dependencies:
+    "@types/babel-types" "*"
+    "@types/istanbul-lib-coverage" "*"
+    source-map "^0.6.1"
+
+"@types/istanbul-lib-source-maps@^1.2.1":
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/@types/istanbul-lib-source-maps/-/istanbul-lib-source-maps-1.2.1.tgz#c6db98b8b9f0b5aea000f7a8922cc075a85eda9f"
+  integrity sha512-K0IvmTFbI2GjLG0O4AOLPV2hFItE5Bg/TY41IBZIThhLhYthJc3VjpZpM8/sIaIVtnQcX8b2k3muPDvsvhk+Fg==
+  dependencies:
+    "@types/istanbul-lib-coverage" "*"
+    source-map "^0.6.1"
+
 "@types/jest@^23.1.1":
   version "23.3.12"
   resolved "https://registry.yarnpkg.com/@types/jest/-/jest-23.3.12.tgz#7e0ced251fa94c3bc2d1023d4b84b2992fa06376"
   integrity sha512-/kQvbVzdEpOq4tEWT79yAHSM4nH4xMlhJv2GrLVQt4Qmo8yYsPdioBM1QpN/2GX1wkfMnyXvdoftvLUr0LBj7Q==
 
+"@types/jsdom@^11.12.0":
+  version "11.12.0"
+  resolved "https://registry.yarnpkg.com/@types/jsdom/-/jsdom-11.12.0.tgz#00ddc6f0a1b04c2f5ff6fb23eb59360ca65f12ae"
+  integrity sha512-XHMNZFQ0Ih3A4/NTWAO15+OsQafPKnQCanN0FYGbsTM/EoI5EoEAvvkF51/DQC2BT5low4tomp7k2RLMlriA5Q==
+  dependencies:
+    "@types/events" "*"
+    "@types/node" "*"
+    "@types/tough-cookie" "*"
+    parse5 "^4.0.0"
+
+"@types/json5@^0.0.29":
+  version "0.0.29"
+  resolved "https://registry.yarnpkg.com/@types/json5/-/json5-0.0.29.tgz#ee28707ae94e11d2b827bcbe5270bcea7f3e71ee"
+  integrity sha1-7ihweulOEdK4J7y+UnC86n8+ce4=
+
+"@types/leven@^2.1.1":
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/@types/leven/-/leven-2.1.1.tgz#7cdc02ec636f80dc0bb0a53d8ee7eff2d8e8e1d8"
+  integrity sha512-f74SsCQnQzm244o5LHZgSLijrwG5e9BgkMHGbDlQThfh42q5RG4c+RNzUvZ347wAlQYD9kwu64qSNylxZdKs6w==
+
+"@types/merge-stream@^1.1.2":
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/@types/merge-stream/-/merge-stream-1.1.2.tgz#a880ff66b1fbbb5eef4958d015c5947a9334dbb1"
+  integrity sha512-7faLmaE99g/yX0Y9pF1neh2IUqOf/fXMOWCVzsXjqI1EJ91lrgXmaBKf6bRWM164lLyiHxHt6t/ZO/cIzq61XA==
+  dependencies:
+    "@types/node" "*"
+
+"@types/micromatch@^3.1.0":
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/@types/micromatch/-/micromatch-3.1.0.tgz#514c8a3d24b2680a9b838eeb80e6d7d724545433"
+  integrity sha512-06uA9V7v68RTOzA3ky1Oi0HmCPa+YJ050vM+sTECwkxnHUQnO17TAcNCGX400QT6bldUiPb7ux5oKy0j8ccEDw==
+  dependencies:
+    "@types/braces" "*"
+
+"@types/minimatch@*":
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-3.0.3.tgz#3dca0e3f33b200fc7d1139c0cd96c1268cadfd9d"
+  integrity sha512-tHq6qdbT9U1IRSGf14CL0pUlULksvY9OZ+5eEgl1N7t+OA3tGvNpxJCzuKQlsNgCVwbAs670L1vcVQi8j9HjnA==
+
+"@types/mkdirp@^0.5.2":
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/@types/mkdirp/-/mkdirp-0.5.2.tgz#503aacfe5cc2703d5484326b1b27efa67a339c1f"
+  integrity sha512-U5icWpv7YnZYGsN4/cmh3WD2onMY0aJIiTE6+51TwJCttdHvtCYmkBNOobHlXwrJRL0nkH9jH4kD+1FAdMN4Tg==
+  dependencies:
+    "@types/node" "*"
+
+"@types/node-notifier@^0.0.28":
+  version "0.0.28"
+  resolved "https://registry.yarnpkg.com/@types/node-notifier/-/node-notifier-0.0.28.tgz#86ba3d3aa8d918352cc3191d88de328b20dc93c1"
+  integrity sha1-hro9OqjZGDUswxkdiN4yiyDck8E=
+  dependencies:
+    "@types/node" "*"
+
 "@types/node@*":
   version "10.12.18"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-10.12.18.tgz#1d3ca764718915584fcd9f6344621b7672665c67"
   integrity sha512-fh+pAqt4xRzPfqA6eh3Z2y6fyZavRIumvjhaCL753+TVkGKGhpPeyrJG2JftD0T9q4GF00KjefsQ+PQNDdWQaQ==
 
+"@types/prompts@^1.2.0":
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@types/prompts/-/prompts-1.2.0.tgz#891e73f735ad5e82e8adae3a99424128e105fb62"
+  integrity sha512-7JXpT2rSd4hqd2oBWU1wfEW6x6gX+qPH+gLzGEx+My3wcb67K9Rc02xNQRVn67phusmXm5Yqn4oTP2OW1G5zdQ==
+
 "@types/q@^1.5.1":
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/@types/q/-/q-1.5.1.tgz#48fd98c1561fe718b61733daed46ff115b496e18"
   integrity sha512-eqz8c/0kwNi/OEHQfvIuJVLTst3in0e7uTKeuY+WL/zfKn0xVujOTp42bS/vUUokhK5P2BppLd9JXMOMHcgbjA==
 
+"@types/resolve@*":
+  version "0.0.8"
+  resolved "https://registry.yarnpkg.com/@types/resolve/-/resolve-0.0.8.tgz#f26074d238e02659e323ce1a13d041eee280e194"
+  integrity sha512-auApPaJf3NPfe18hSoJkp8EbZzer2ISk7o8mCC3M9he/a04+gbMF97NkpD2S8riMGvm4BMRI59/SZQSaLTKpsQ==
+  dependencies:
+    "@types/node" "*"
+
+"@types/rimraf@^2.0.2":
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/@types/rimraf/-/rimraf-2.0.2.tgz#7f0fc3cf0ff0ad2a99bb723ae1764f30acaf8b6e"
+  integrity sha512-Hm/bnWq0TCy7jmjeN5bKYij9vw5GrDFWME4IuxV08278NtU/VdGbzsBohcCUJ7+QMqmUq5hpRKB39HeQWJjztQ==
+  dependencies:
+    "@types/glob" "*"
+    "@types/node" "*"
+
+"@types/sane@^2.0.0":
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/@types/sane/-/sane-2.0.0.tgz#891c272b10d1a6f735e915c731756104b5d21374"
+  integrity sha512-6o/YMfcKcWIK5IAxeo/1DEoVnGKBkPSPj9odxczz2i1gFY78GvguqgtNo28nyKgJUiKEWuFj11acpgdRmRFz7A==
+  dependencies:
+    "@types/node" "*"
+
+"@types/semver@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@types/semver/-/semver-5.5.0.tgz#146c2a29ee7d3bae4bf2fcb274636e264c813c45"
+  integrity sha512-41qEJgBH/TWgo5NFSvBCJ1qkoi3Q6ONSF2avrHq1LVEZfYpdHmj0y9SuTK+u9ZhG1sYQKBL1AWXKyLWP4RaUoQ==
+
+"@types/slash@^2.0.0":
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/@types/slash/-/slash-2.0.0.tgz#2c37c08f5d2e0dad20aed808de79459e0a35ef9d"
+  integrity sha512-LTVXHQ+ij5F973ulc7aJEFteAtUvCflhzI3oOdV8VhWUmjy4na4LnK2bZaH8hDBq9eFX+Nb9DT3HVctqLoTy+g==
+
+"@types/source-map-support@^0.4.1":
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/@types/source-map-support/-/source-map-support-0.4.1.tgz#ad77158e8c6695a16629ef82b9fb9dfe7c610ac0"
+  integrity sha512-eoyZxYGwaeHq5zCVeoNgY1dQy6dVdm1b7K9k1FRnWkf997Tji3NLBoLAjK5WCobeh1Qs6Q5KUV1rZCmHvzaDBw==
+  dependencies:
+    "@types/node" "*"
+
+"@types/stack-utils@^1.0.1":
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/@types/stack-utils/-/stack-utils-1.0.1.tgz#0a851d3bd96498fa25c33ab7278ed3bd65f06c3e"
+  integrity sha512-l42BggppR6zLmpfU6fq9HEa2oGPEI8yrSPL3GITjfRInppYFahObbIQOQK3UGxEnyQpltZLaPe75046NOZQikw==
+
+"@types/string-length@^2.0.0":
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/@types/string-length/-/string-length-2.0.0.tgz#358ce3ff2e8c2310270ee192ddd6b79b64fed7b2"
+  integrity sha512-xFwWZpIWcLsrcVEybzxmxQM/26Snj1gqxmVrelC3We3Nub7q70RCtqTBVQ7nL+315fAcw4BGSFpxvMkhLApKmQ==
+
+"@types/strip-bom@3.0.0":
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/@types/strip-bom/-/strip-bom-3.0.0.tgz#14a8ec3956c2e81edb7520790aecf21c290aebd2"
+  integrity sha1-FKjsOVbC6B7bdSB5CuzyHCkK69I=
+
+"@types/supports-color@^5.3.0":
+  version "5.3.0"
+  resolved "https://registry.yarnpkg.com/@types/supports-color/-/supports-color-5.3.0.tgz#eb6a52e9531fb3ebcd401cec774d1bdfb571f793"
+  integrity sha512-WxwTXnHTIsk7srax1icjLgX+6w1MUAJbhyCpRP/45paEElsPDQUJZDgr1UpKuL2S3Tb+ZyX9MjWwmcSD4bUoOQ==
+
+"@types/tough-cookie@*":
+  version "2.3.4"
+  resolved "https://registry.yarnpkg.com/@types/tough-cookie/-/tough-cookie-2.3.4.tgz#821878b81bfab971b93a265a561d54ea61f9059f"
+  integrity sha512-Set5ZdrAaKI/qHdFlVMgm/GsAv/wkXhSTuZFkJ+JI7HK+wIkIlOaUXSXieIvJ0+OvGIqtREFoE+NHJtEq0gtEw==
+
+"@types/weak@^1.0.0":
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/@types/weak/-/weak-1.0.0.tgz#7b3bf891c4b53e2b8a144b7e41f4b0f6e78c2ba8"
+  integrity sha512-6WXZpeAac3vj5+OfQvlqYEtc88oOgvkcxbrnmBw53Da6gA+MGztL+Hns3BpnyUevgz+4DxsJblgAew1A/tkcng==
+  dependencies:
+    "@types/node" "*"
+
+"@types/which@^1.3.1":
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/@types/which/-/which-1.3.1.tgz#7802c380887986ca909008afea4e08025b130f8d"
+  integrity sha512-ZrJDWpvg75LTGX4XwuneY9s6bF3OeZcGTpoGh3zDV9ytzcHMFsRrMIaLBRJZQMBoGyKs6unBQfVdrLZiYfb1zQ==
+
+"@types/write-file-atomic@^2.1.1":
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/@types/write-file-atomic/-/write-file-atomic-2.1.1.tgz#7f9fcd6c5c8d194dba03472e3fa6cb29a839764c"
+  integrity sha512-mROQhTxpJsOm/S0eOxDHUy5WJ0yS8fmqsq/s+u5OuAh1TxBFSqVBTkLjbyxDPcKh7DeJXk0OYrCkxXlkf8zu1g==
+  dependencies:
+    "@types/node" "*"
+
+"@types/yargs@^12.0.2":
+  version "12.0.2"
+  resolved "https://registry.yarnpkg.com/@types/yargs/-/yargs-12.0.2.tgz#7569157b2601d49d4442023c0d22f81d23f62d1e"
+  integrity sha512-NUyxaQW48vjeDHybmhy7CFx/6of1+PoaEGPMI+0PzBVr5s3BTELT7gV4lNaxUsKllNS1YAjkeTEhBtzIDWs2WQ==
+
+"@typescript-eslint/eslint-plugin@^1.2.0":
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-1.2.0.tgz#a73021a0d5bd1116a88689186844ce4421d52ab0"
+  integrity sha512-em3q8Gg3euesNohOwaz+SqrQM2Jn1ZWELMM+vgKi4dEk5fC+eVoi05yfubgAi2qPE5ifG4F0SOXM1XTamB0Aig==
+  dependencies:
+    "@typescript-eslint/parser" "1.2.0"
+    requireindex "^1.2.0"
+    tsutils "^3.7.0"
+
+"@typescript-eslint/parser@1.2.0", "@typescript-eslint/parser@^1.2.0":
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-1.2.0.tgz#256de163b7cb0d79d0388266a5bfb5585bccb1ff"
+  integrity sha512-IXXiXgs6ocKTmtbzJjGyUvRHZFLuk2mYXyk+ayEql1woh1+rYS/Uct8b4jGtfHG8ZRUBZ12zjzsrDKFYC2pbrQ==
+  dependencies:
+    "@typescript-eslint/typescript-estree" "1.2.0"
+    eslint-scope "^4.0.0"
+    eslint-visitor-keys "^1.0.0"
+
+"@typescript-eslint/typescript-estree@1.2.0":
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-1.2.0.tgz#d9043a407d5e0f07db2b4a80d86852f7826c34f0"
+  integrity sha512-YGh4egbiCfUObvi6fnQNzJAMmScMGCjG5cRHaapW7GpwujWYQymLlids88imnhcTbOx8Mlz1OXFIuxyPBXK6Ig==
+  dependencies:
+    lodash.unescape "4.0.1"
+    semver "5.5.0"
+
 "@webassemblyjs/ast@1.7.11":
   version "1.7.11"
   resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.7.11.tgz#b988582cafbb2b095e8b556526f30c90d057cace"
@@ -3971,7 +4311,7 @@ deep-is@~0.1.3:
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
   integrity sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=
 
-deepmerge@^2.1.1:
+deepmerge@^2.0.1, deepmerge@^2.1.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-2.2.1.tgz#5d3ff22a01c00f645405a2fbc17d0778a1801170"
   integrity sha512-R9hc1Xa/NOBi9WRVUWg19rl1UB7Tt4kuPd+thNJgFZoxXsTz7ncaPaeIm+40oSGuP33DfMb4sZt1QIGiJzC4EA==
@@ -4644,6 +4984,15 @@ eslint-import-resolver-node@^0.3.1:
     debug "^2.6.9"
     resolve "^1.5.0"
 
+eslint-import-resolver-typescript@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/eslint-import-resolver-typescript/-/eslint-import-resolver-typescript-1.1.1.tgz#e6d42172b95144ef16610fe104ef38340edea591"
+  integrity sha512-jqSfumQ+H5y3FUJ6NjRkbOQSUOlbBucGTN3ELymOtcDBbPjVdm/luvJuCfCaIXGh8sEF26ma1qVdtDgl9ndhUg==
+  dependencies:
+    debug "^4.0.1"
+    resolve "^1.4.0"
+    tsconfig-paths "^3.6.0"
+
 eslint-module-utils@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/eslint-module-utils/-/eslint-module-utils-2.2.0.tgz#b270362cd88b1a48ad308976ce7fa54e98411746"
@@ -7890,6 +8239,11 @@ lodash.throttle@^4.1.1:
   resolved "https://registry.yarnpkg.com/lodash.throttle/-/lodash.throttle-4.1.1.tgz#c23e91b710242ac70c37f1e1cda9274cc39bf2f4"
   integrity sha1-wj6RtxAkKscMN/HhzaknTMOb8vQ=
 
+lodash.unescape@4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/lodash.unescape/-/lodash.unescape-4.0.1.tgz#bf2249886ce514cda112fae9218cdc065211fc9c"
+  integrity sha1-vyJJiGzlFM2hEvrpIYzcBlIR/Jw=
+
 lodash.uniq@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
@@ -9506,7 +9860,7 @@ parse-passwd@^1.0.0:
   resolved "https://registry.yarnpkg.com/parse-passwd/-/parse-passwd-1.0.0.tgz#6d5b934a456993b23d37f40a382d6f1666a8e5c6"
   integrity sha1-bVuTSkVpk7I9N/QKOC1vFmao5cY=
 
-parse5@4.0.0:
+parse5@4.0.0, parse5@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/parse5/-/parse5-4.0.0.tgz#6d78656e3da8d78b4ec0b906f7c08ef1dfe3f608"
   integrity sha512-VrZ7eOd3T1Fk4XWNXMgiGBK/z0MG48BWG2uQNU4I72fkQuKUTZpl+u9k+CxEG0twMVzSmXEEz12z5Fnw1jIQFA==
@@ -10935,6 +11289,11 @@ require-main-filename@^1.0.1:
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
   integrity sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE=
 
+requireindex@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/requireindex/-/requireindex-1.2.0.tgz#3463cdb22ee151902635aa6c9535d4de9c2ef1ef"
+  integrity sha512-L9jEkOi3ASd9PYit2cwRfyppc9NoABujTP8/5gFcbERmo5jUoAKovIC3fsF17pkTnGsrByysqX+Kxd2OTNI1ww==
+
 requires-port@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
@@ -11210,6 +11569,11 @@ semver-truncate@^1.1.2:
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.6.0.tgz#7e74256fbaa49c75aa7c7a205cc22799cac80004"
   integrity sha512-RS9R6R35NYgQn++fkDWaOmqGoj4Ek9gGs+DPxNUZKuwE183xjJroKvyo1IzVFeXvUrvmALy6FWD5xrdJT25gMg==
 
+semver@5.5.0:
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
+  integrity sha512-4SJ3dm0WAwWy/NVeioZh5AntkdJoWKxHxcmyP622fOkgHa4z3R0TdBJICINyaSDE6uNwVc8gZr+ZinwZAH4xIA==
+
 semver@~5.3.0:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
@@ -12288,11 +12652,29 @@ truncate-html@^1.0.1:
     "@types/cheerio" "^0.22.8"
     cheerio "0.22.0"
 
-tslib@^1.8.0, tslib@^1.9.0:
+tsconfig-paths@^3.6.0:
+  version "3.7.0"
+  resolved "https://registry.yarnpkg.com/tsconfig-paths/-/tsconfig-paths-3.7.0.tgz#02ae978db447b22e09dafcd4198be95c4885ceb2"
+  integrity sha512-7iE+Q/2E1lgvxD+c0Ot+GFFmgmfIjt/zCayyruXkXQ84BLT85gHXy0WSoQSiuFX9+d+keE/jiON7notV74ZY+A==
+  dependencies:
+    "@types/json5" "^0.0.29"
+    deepmerge "^2.0.1"
+    json5 "^1.0.1"
+    minimist "^1.2.0"
+    strip-bom "^3.0.0"
+
+tslib@^1.8.0, tslib@^1.8.1, tslib@^1.9.0:
   version "1.9.3"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.3.tgz#d7e4dd79245d85428c4d7e4822a79917954ca286"
   integrity sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ==
 
+tsutils@^3.7.0:
+  version "3.8.0"
+  resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-3.8.0.tgz#7a3dbadc88e465596440622b65c04edc8e187ae5"
+  integrity sha512-XQdPhgcoTbCD8baXC38PQ0vpTZ8T3YrE+vR66YIj/xvDt1//8iAhafpIT/4DmvzzC1QFapEImERu48Pa01dIUA==
+  dependencies:
+    tslib "^1.8.1"
+
 tty-browserify@0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/tty-browserify/-/tty-browserify-0.0.0.tgz#a157ba402da24e9bf957f9aa69d524eed42901a6"
@@ -12330,10 +12712,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^3.0.0, typescript@^3.0.3:
-  version "3.2.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.2.2.tgz#fe8101c46aa123f8353523ebdcf5730c2ae493e5"
-  integrity sha512-VCj5UiSyHBjwfYacmDuc/NOk4QQixbE+Wn7MFJuS0nRuPQbof132Pw4u53dm264O8LPc2MVsc7RJNml5szurkg==
+typescript@^3.0.0, typescript@^3.3.1:
+  version "3.3.1"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.3.1.tgz#6de14e1db4b8a006ac535e482c8ba018c55f750b"
+  integrity sha512-cTmIDFW7O0IHbn1DPYjkiebHxwtCMU+eTy30ZtJNBPF9j2O1ITu5XH2YnBeVRKWHqF+3JQwWJv0Q0aUgX8W7IA==
 
 ua-parser-js@^0.7.18:
   version "0.7.19"