Upgrade babel to 7. Remove transform classes plugin.

Author: prplx

.babelrc

@@ -1,19 +1,45 @@
 {
   "plugins": [
-    "add-module-exports",
+    "@babel/plugin-transform-flow-strip-types",
     "lodash",
-    "transform-class-properties",
+    "@babel/plugin-proposal-class-properties",
+    "@babel/plugin-transform-proto-to-assign",
+    "@babel/plugin-syntax-dynamic-import",
+    "@babel/plugin-syntax-import-meta",
+    "@babel/plugin-proposal-json-strings",
     [
-      "transform-es2015-classes",
+      "@babel/plugin-proposal-decorators",
       {
-        "loose": true
+        "legacy": true
       }
     ],
-    "transform-proto-to-assign"
+    "@babel/plugin-proposal-function-sent",
+    "@babel/plugin-proposal-export-namespace-from",
+    "@babel/plugin-proposal-numeric-separator",
+    "@babel/plugin-proposal-throw-expressions",
+    "@babel/plugin-proposal-export-default-from",
+    "@babel/plugin-proposal-logical-assignment-operators",
+    "@babel/plugin-proposal-optional-chaining",
+    [
+      "@babel/plugin-proposal-pipeline-operator",
+      {
+        "proposal": "minimal"
+      }
+    ],
+    "@babel/plugin-proposal-nullish-coalescing-operator",
+    "@babel/plugin-proposal-do-expressions",
+    "@babel/plugin-proposal-function-bind"
   ],
   "presets": [
-    "es2015",
-    "stage-0",
-    "react"
+    [
+      "@babel/preset-env",
+      {
+        "modules": false,
+        "targets": {
+          "esmodules": true
+        }
+      }
+    ],
+    "@babel/preset-react"
   ]
 }

package.json

@@ -25,14 +25,31 @@
     "object-unfreeze": "^1.1.0"
   },
   "devDependencies": {
-    "babel-cli": "^6.18.0",
+    "@babel/cli": "^7.0.0",
+    "@babel/core": "^7.0.0",
+    "@babel/plugin-proposal-class-properties": "^7.0.0",
+    "@babel/plugin-proposal-decorators": "^7.0.0",
+    "@babel/plugin-proposal-do-expressions": "^7.0.0",
+    "@babel/plugin-proposal-export-default-from": "^7.0.0",
+    "@babel/plugin-proposal-export-namespace-from": "^7.0.0",
+    "@babel/plugin-proposal-function-bind": "^7.0.0",
+    "@babel/plugin-proposal-function-sent": "^7.0.0",
+    "@babel/plugin-proposal-json-strings": "^7.0.0",
+    "@babel/plugin-proposal-logical-assignment-operators": "^7.0.0",
+    "@babel/plugin-proposal-nullish-coalescing-operator": "^7.0.0",
+    "@babel/plugin-proposal-numeric-separator": "^7.0.0",
+    "@babel/plugin-proposal-optional-chaining": "^7.0.0",
+    "@babel/plugin-proposal-pipeline-operator": "^7.0.0",
+    "@babel/plugin-proposal-throw-expressions": "^7.0.0",
+    "@babel/plugin-syntax-dynamic-import": "^7.0.0",
+    "@babel/plugin-syntax-import-meta": "^7.0.0",
+    "@babel/plugin-transform-flow-strip-types": "^7.2.3",
+    "@babel/plugin-transform-proto-to-assign": "^7.0.0",
+    "@babel/preset-env": "^7.0.0",
+    "@babel/preset-react": "^7.0.0",
+    "@babel/register": "^7.0.0",
     "babel-plugin-add-module-exports": "^0.2.1",
     "babel-plugin-lodash": "^3.2.9",
-    "babel-plugin-transform-proto-to-assign": "^6.9.0",
-    "babel-preset-es2015": "^6.18.0",
-    "babel-preset-react": "^6.16.0",
-    "babel-preset-stage-0": "^6.16.0",
-    "babel-register": "^6.18.0",
     "chai": "^4.0.0-canary.1",
     "chai-spies": "^0.7.1",
     "eslint": "^3.10.0",
@@ -48,8 +65,7 @@
   },
   "scripts": {
     "lint": "eslint ./src ./tests",
-    "test": "NODE_ENV=development mocha --compilers js:babel-register ./tests/**/*.js && npm run lint && npm run build",
-    "build": "NODE_ENV=production babel ./src --out-dir ./dist",
-    "precommit": "npm run test"
+    "test": "NODE_ENV=development mocha --compilers js:@babel/register ./tests/**/*.js && npm run lint && npm run build",
+    "build": "NODE_ENV=production babel ./src --out-dir ./dist"
   }
 }