use flow + eslint in travis

Author: jaredly

.eslintrc

@@ -42,6 +42,7 @@
     "setTimeout": false,
     "window": false,
     "XMLHttpRequest": false,
+    "performance": false,
   },
 
   "rules": {

.travis.yml

@@ -1,8 +1,11 @@
 sudo: false
 install:
   - npm install
+  - npm install -g flow-bin
 language: node_js
 node_js:
   - "iojs"
 script:
+  - npm run lint
+  - flow check
   - npm test

agent/Agent.js

@@ -234,7 +234,6 @@ class Agent extends EventEmitter {
     if (!component) {
       return null;
     }
-    var data = this.elementData.get(id);
     var renderer = this.renderers.get(id);
     if (this.reactInternals[renderer].getNativeFromReactElement) {
       // $FlowFixMe I literally just checked this

agent/dehydrate.js

@@ -62,7 +62,7 @@ function dehydrate(data: Object, cleaned: Array<Array<string>>, path?: Array<str
   }
   if (Array.isArray(data)) {
     // $FlowFixMe path is not undefined.
-    return data.map((item, i) => sanitize(item, cleaned, path.concat([i]), level + 1));
+    return data.map((item, i) => dehydrate(item, cleaned, path.concat([i]), level + 1));
   }
   // TODO when this is in the iframe window, we can just use Object
   if (data.constructor && typeof data.constructor === 'function' && data.constructor.name !== 'Object') {

agent/flow.js

@@ -1,5 +1,16 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @flow
+ */
+'use strict';
 
-declare var performance: {
+declare var performance: { // eslint-disable-line no-unused-vars
   now: () => number,
 };
 

backend/integration/is-travis.js

@@ -1,3 +1,13 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ */
+'use strict';
 
 window.IS_TRAVIS = true;