react app

react-app/node_modules/react/lib/ReactComponentEnvironment.js

@@ -0,0 +1,57 @@
+/**
+ * Copyright 2014-2015, 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.
+ *
+ * @providesModule ReactComponentEnvironment
+ */
+
+'use strict';
+
+var invariant = require("./invariant");
+
+var injected = false;
+
+var ReactComponentEnvironment = {
+
+  /**
+   * Optionally injectable environment dependent cleanup hook. (server vs.
+   * browser etc). Example: A browser system caches DOM nodes based on component
+   * ID and must remove that cache entry when this instance is unmounted.
+   */
+  unmountIDFromEnvironment: null,
+
+  /**
+   * Optionally injectable hook for swapping out mount images in the middle of
+   * the tree.
+   */
+  replaceNodeWithMarkupByID: null,
+
+  /**
+   * Optionally injectable hook for processing a queue of child updates. Will
+   * later move into MultiChildComponents.
+   */
+  processChildrenUpdates: null,
+
+  injection: {
+    injectEnvironment: function(environment) {
+      ("production" !== process.env.NODE_ENV ? invariant(
+        !injected,
+        'ReactCompositeComponent: injectEnvironment() can only be called once.'
+      ) : invariant(!injected));
+      ReactComponentEnvironment.unmountIDFromEnvironment =
+        environment.unmountIDFromEnvironment;
+      ReactComponentEnvironment.replaceNodeWithMarkupByID =
+        environment.replaceNodeWithMarkupByID;
+      ReactComponentEnvironment.processChildrenUpdates =
+        environment.processChildrenUpdates;
+      injected = true;
+    }
+  }
+
+};
+
+module.exports = ReactComponentEnvironment;