chore: upgrade to babel v7

.babelrc

@@ -1,66 +0,0 @@
-{
-  "presets": ["react"],
-  "plugins": [
-    "check-es2015-constants",
-    "transform-object-rest-spread",
-    "transform-runtime",
-    [
-      "module-resolver",
-      {
-        "alias": {
-          "babel-runtime/core-js/object/get-prototype-of": "./src/polyfills/objectGetPrototypeOf",
-          "babel-runtime/helpers/extends": "./src/polyfills/extends",
-          "babel-runtime/helpers/inherits": "./src/polyfills/inherits",
-          "babel-runtime/helpers/createClass": "./src/polyfills/createClass",
-          "babel-runtime/helpers/possibleConstructorReturn": "./src/polyfills/possibleConstructorReturn",
-          "babel-runtime/helpers/classCallCheck": "./src/polyfills/classCallCheck",
-          "babel-runtime/core-js/object/keys": "./src/polyfills/keys"
-        }
-      }
-    ],
-    [
-      "transform-define", "scripts/define.js"
-    ]
-  ],
-  "env": {
-    "legacy-es": {
-      "plugins": [
-        "transform-es2015-arrow-functions",
-        "transform-es2015-block-scoped-functions",
-        "transform-es2015-block-scoping",
-        "transform-es2015-classes",
-        "transform-es2015-computed-properties",
-        "transform-es2015-destructuring",
-        "transform-es2015-duplicate-keys",
-        "transform-es2015-for-of",
-        "transform-es2015-function-name",
-        "transform-es2015-literals",
-        "transform-es2015-object-super",
-        "transform-es2015-parameters",
-        "transform-es2015-shorthand-properties",
-        "transform-es2015-spread",
-        "transform-es2015-sticky-regex",
-        "transform-es2015-template-literals",
-        "transform-es2015-unicode-regex",
-        "transform-regenerator"
-      ]
-    },
-    "legacy-cjs": {
-      "plugins": [
-        "transform-es2015-modules-commonjs"
-      ]
-    },
-    "test": {
-      "presets": [
-        [
-          "env",
-          {
-            "targets": {
-              "node": "current"
-            }
-          }
-        ]
-      ]
-    }
-  }
-}

babel.config.js

@@ -0,0 +1,65 @@
+const { devDependencies } = require('./package.json')
+
+module.exports = {
+  presets: ['@babel/preset-react'],
+  plugins: [
+    '@babel/plugin-transform-runtime',
+    [
+      'babel-plugin-transform-define',
+      {
+        'process.env.NODE_ENV': 'production',
+        EMOJI_DATASOURCE_VERSION: devDependencies['emoji-datasource'],
+      },
+    ],
+  ],
+  env: {
+    'legacy-es': {
+      presets: [
+        [
+          '@babel/preset-env',
+          {
+            modules: false,
+          },
+        ],
+      ],
+    },
+    'legacy-cjs': {
+      presets: [
+        [
+          '@babel/preset-env',
+          {
+            modules: 'cjs',
+          },
+        ],
+      ],
+    },
+    modern: {
+      presets: [
+        [
+          '@babel/preset-env',
+          {
+            targets: {
+              chrome: '77',
+              edge: '18',
+              firefox: '71',
+              safari: '13',
+            },
+            modules: false,
+          },
+        ],
+      ],
+    },
+    test: {
+      presets: [
+        [
+          '@babel/preset-env',
+          {
+            targets: {
+              node: 'current',
+            }
+          },
+        ],
+      ],
+    },
+  },
+}

package.json

@@ -20,37 +20,33 @@
   },
   "homepage": "https://github.com/missive/emoji-mart",
   "dependencies": {
+    "@babel/runtime": "^7.0.0",
     "prop-types": "^15.6.0"
   },
   "peerDependencies": {
     "react": "^0.14.0 || ^15.0.0-0 || ^16.0.0"
   },
   "devDependencies": {
+    "@babel/cli": "^7.0.0",
+    "@babel/core": "^7.0.0",
+    "@babel/plugin-transform-runtime": "^7.7.6",
+    "@babel/preset-env": "^7.0.0",
+    "@babel/preset-react": "7.0.0",
     "@storybook/addon-actions": "^3.2.11",
     "@storybook/addon-knobs": "^3.2.10",
     "@storybook/addon-links": "^3.2.10",
     "@storybook/addon-options": "3.2.10",
     "@storybook/react": "^3.2.11",
     "auto-changelog": "1.12.0",
-    "babel-cli": "^6.0.0",
+    "babel-jest": "^24.9.0",
-    "babel-core": "^6.0.0",
+    "babel-loader": "^8.0.0",
-    "babel-jest": "^23.6.0",
+    "babel-plugin-transform-define": "^2.0.0",
-    "babel-loader": "^7.0.0",
-    "babel-plugin-module-resolver": "2.7.1",
-    "babel-plugin-transform-define": "^1.3.0",
-    "babel-plugin-transform-es2015-destructuring": "6.9.0",
-    "babel-plugin-transform-object-rest-spread": "6.8.0",
-    "babel-plugin-transform-runtime": "^6.23.0",
-    "babel-preset-env": "^1.7.0",
-    "babel-preset-es2015": "6.6.0",
-    "babel-preset-react": "6.5.0",
-    "babel-runtime": "^6.26.0",
     "emoji-datasource": "4.0.4",
     "emojilib": "^2.2.1",
     "enzyme": "^3.9.0",
     "enzyme-adapter-react-16": "^1.11.2",
     "inflection": "1.10.0",
-    "jest": "^23.0.0",
+    "jest": "^24.9.0",
     "mkdirp": "0.5.1",
     "prettier": "^1.16.4",
     "react": "^16.0.0",
@@ -65,12 +61,12 @@
     "clean": "rm -rf dist/ dist-es/ dist-modern/",
     "build:data": "node scripts/build-data",
     "build:dist": "npm run build:cjs && npm run build:es && npm run build:modern",
-    "build:cjs": "BABEL_ENV=legacy-cjs babel src --out-dir dist --copy-files --ignore '**/*.test.js'",
+    "build:cjs": "BABEL_ENV=legacy-cjs babel src --out-dir dist --ignore  '**/__tests__/*'",
-    "build:es": "BABEL_ENV=legacy-es babel src --out-dir dist-es --copy-files --ignore '**/*.test.js'",
+    "build:es": "BABEL_ENV=legacy-es babel src --out-dir dist-es --ignore  '**/__tests__/*'",
-    "build:modern": "babel src --out-dir dist-modern --copy-files --ignore '**/*.test.js'",
+    "build:modern": "BABEL_ENV=modern babel src --out-dir dist-modern --ignore  '**/__tests__/*'",
     "build:docs": "cp css/emoji-mart.css docs && webpack --config ./docs/webpack.config.js",
     "build": "npm run clean && npm run build:dist",
-    "watch": "BABEL_ENV=cjs babel src --watch --out-dir dist --copy-files --ignore '**/*.test.js'",
+    "watch": "BABEL_ENV=legacy-cjs babel src --watch --out-dir dist --ignore  '**/__tests__/*'",
     "start": "npm run watch",
     "react:clean": "rimraf node_modules/{react,react-dom,react-addons-test-utils}",
     "react:14": "npm run react:clean && npm i react@^0.14 react-dom@^0.14 react-addons-test-utils@^0.14 --save-dev",

scripts/define.js

@@ -1,6 +0,0 @@
-var pack = require('../package.json')
-
-module.exports = {
-  'process.env.NODE_ENV': 'production',
-  EMOJI_DATASOURCE_VERSION: pack.devDependencies['emoji-datasource'],
-}

src/polyfills/classCallCheck.js

@@ -1,5 +0,0 @@
-export default function(instance, Constructor) {
-  if (!(instance instanceof Constructor)) {
-    throw new TypeError('Cannot call a class as a function')
-  }
-}

src/polyfills/createClass.js

@@ -1,19 +0,0 @@
-const _Object = Object
-
-export default (function createClass() {
-  function defineProperties(target, props) {
-    for (var i = 0; i < props.length; i++) {
-      var descriptor = props[i]
-      descriptor.enumerable = descriptor.enumerable || false
-      descriptor.configurable = true
-      if ('value' in descriptor) descriptor.writable = true
-      _Object.defineProperty(target, descriptor.key, descriptor)
-    }
-  }
-
-  return function(Constructor, protoProps, staticProps) {
-    if (protoProps) defineProperties(Constructor.prototype, protoProps)
-    if (staticProps) defineProperties(Constructor, staticProps)
-    return Constructor
-  }
-})()

src/polyfills/extends.js

@@ -1,16 +0,0 @@
-const _Object = Object
-
-export default _Object.assign ||
-  function(target) {
-    for (var i = 1; i < arguments.length; i++) {
-      var source = arguments[i]
-
-      for (var key in source) {
-        if (Object.prototype.hasOwnProperty.call(source, key)) {
-          target[key] = source[key]
-        }
-      }
-    }
-
-    return target
-  }

src/polyfills/inherits.js

@@ -1,24 +0,0 @@
-const _Object = Object
-
-export default function inherits(subClass, superClass) {
-  if (typeof superClass !== 'function' && superClass !== null) {
-    throw new TypeError(
-      'Super expression must either be null or a function, not ' +
-        typeof superClass,
-    )
-  }
-
-  subClass.prototype = _Object.create(superClass && superClass.prototype, {
-    constructor: {
-      value: subClass,
-      enumerable: false,
-      writable: true,
-      configurable: true,
-    },
-  })
-  if (superClass) {
-    _Object.setPrototypeOf
-      ? _Object.setPrototypeOf(subClass, superClass)
-      : (subClass.__proto__ = superClass)
-  }
-}

src/polyfills/keys.js

@@ -1,38 +0,0 @@
-// From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys
-var hasOwnProperty = Object.prototype.hasOwnProperty,
-  hasDontEnumBug = !{ toString: null }.propertyIsEnumerable('toString'),
-  dontEnums = [
-    'toString',
-    'toLocaleString',
-    'valueOf',
-    'hasOwnProperty',
-    'isPrototypeOf',
-    'propertyIsEnumerable',
-    'constructor',
-  ],
-  dontEnumsLength = dontEnums.length
-
-export default function(obj) {
-  if (typeof obj !== 'function' && (typeof obj !== 'object' || obj === null)) {
-    throw new TypeError('Object.keys called on non-object')
-  }
-
-  var result = [],
-    prop,
-    i
-
-  for (prop in obj) {
-    if (hasOwnProperty.call(obj, prop)) {
-      result.push(prop)
-    }
-  }
-
-  if (hasDontEnumBug) {
-    for (i = 0; i < dontEnumsLength; i++) {
-      if (hasOwnProperty.call(obj, dontEnums[i])) {
-        result.push(dontEnums[i])
-      }
-    }
-  }
-  return result
-}

src/polyfills/objectGetPrototypeOf.js

@@ -1,12 +0,0 @@
-const _Object = Object
-
-export default _Object.getPrototypeOf ||
-  function(O) {
-    O = Object(O)
-
-    if (typeof O.constructor === 'function' && O instanceof O.constructor) {
-      return O.constructor.prototype
-    }
-
-    return O instanceof Object ? Object.prototype : null
-  }

src/polyfills/possibleConstructorReturn.js

@@ -1,11 +0,0 @@
-export default function possibleConstructorReturn(self, call) {
-  if (!self) {
-    throw new ReferenceError(
-      "this hasn't been initialised - super() hasn't been called",
-    )
-  }
-
-  return call && (typeof call === 'object' || typeof call === 'function')
-    ? call
-    : self
-}