Add ESLint and opt-in to object spread syntax

Author: ericf

.babelrc

@@ -1,3 +1,7 @@
 {
-    "optional": ["runtime"]
+    "stage": 4,
+    "optional": [
+        "runtime",
+        "es7.objectRestSpread"
+    ]
 }

.eslintrc

@@ -0,0 +1,33 @@
+{
+    "parser": "babel-eslint",
+    "extends": "eslint:recommended",
+    "env": {
+        "es6": true,
+        "node": true
+    },
+    "ecmaFeatures": {
+        "modules": true
+    },
+    "rules": {
+        "no-console": 0,
+
+        "arrow-parens": [2, "always"],
+        "comma-dangle": [2, "always-multiline"],
+        "eqeqeq": 2,
+        "indent": [2, 4],
+        "linebreak-style": [2, "unix"],
+        "prefer-arrow-callback": 2,
+        "quotes": [2, "single"],
+        "semi": [2, "always"],
+        "strict": [2, "never"],
+        "yoda": [2, "never"],
+
+        "no-alert": 2,
+        "no-const-assign": 2,
+        "no-else-return": 2,
+        "no-this-before-super": 2,
+        "no-unexpected-multiline": 2,
+        "no-var": 2,
+        "no-warning-comments": 1
+    }
+}

package.json

@@ -14,9 +14,12 @@
     "mkdirp": "^0.5.1"
   },
   "devDependencies": {
-    "babel": "^5.8.21"
+    "babel": "^5.8.21",
+    "babel-eslint": "^4.1.2",
+    "eslint": "^1.4.3"
   },
   "scripts": {
+    "lint": "eslint src/",
     "build": "babel-plugin build",
     "push": "babel-plugin publish",
     "test": "babel-plugin test",

src/index.js

@@ -20,7 +20,7 @@ const FUNCTION_NAMES = [
 const IMPORTED_NAMES   = new Set([...COMPONENT_NAMES, ...FUNCTION_NAMES]);
 const DESCRIPTOR_PROPS = new Set(['id', 'description', 'defaultMessage']);
 
-export default function ({Plugin, types: t}) {
+export default function ({Plugin}) {
     function getModuleSourceName(options) {
         const reactIntlOptions = options.extra['react-intl'] || {};
         return reactIntlOptions.moduleSourceName || 'react-intl';
@@ -165,7 +165,7 @@ export default function ({Plugin, types: t}) {
                         mkdirpSync(p.dirname(messagesFilename));
                         writeFileSync(messagesFilename, messagesFile);
                     }
-                }
+                },
             },
 
             JSXOpeningElement(node, parent, scope, file) {
@@ -211,7 +211,7 @@ export default function ({Plugin, types: t}) {
                     let descriptor = getMessageDescriptor(new Map(properties));
                     storeMessage(descriptor, node, file);
                 }
-            }
-        }
+            },
+        },
     });
 }