react app

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

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+/**
+ * Copyright 2013-2015, 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 ReactComponent
+ */
+
+'use strict';
+
+var ReactUpdateQueue = require("./ReactUpdateQueue");
+
+var invariant = require("./invariant");
+var warning = require("./warning");
+
+/**
+ * Base class helpers for the updating state of a component.
+ */
+function ReactComponent(props, context) {
+  this.props = props;
+  this.context = context;
+}
+
+/**
+ * Sets a subset of the state. Always use this to mutate
+ * state. You should treat `this.state` as immutable.
+ *
+ * There is no guarantee that `this.state` will be immediately updated, so
+ * accessing `this.state` after calling this method may return the old value.
+ *
+ * There is no guarantee that calls to `setState` will run synchronously,
+ * as they may eventually be batched together.  You can provide an optional
+ * callback that will be executed when the call to setState is actually
+ * completed.
+ *
+ * When a function is provided to setState, it will be called at some point in
+ * the future (not synchronously). It will be called with the up to date
+ * component arguments (state, props, context). These values can be different
+ * from this.* because your function may be called after receiveProps but before
+ * shouldComponentUpdate, and this new state, props, and context will not yet be
+ * assigned to this.
+ *
+ * @param {object|function} partialState Next partial state or function to
+ *        produce next partial state to be merged with current state.
+ * @param {?function} callback Called after state is updated.
+ * @final
+ * @protected
+ */
+ReactComponent.prototype.setState = function(partialState, callback) {
+  ("production" !== process.env.NODE_ENV ? invariant(
+    typeof partialState === 'object' ||
+    typeof partialState === 'function' ||
+    partialState == null,
+    'setState(...): takes an object of state variables to update or a ' +
+    'function which returns an object of state variables.'
+  ) : invariant(typeof partialState === 'object' ||
+  typeof partialState === 'function' ||
+  partialState == null));
+  if ("production" !== process.env.NODE_ENV) {
+    ("production" !== process.env.NODE_ENV ? warning(
+      partialState != null,
+      'setState(...): You passed an undefined or null state object; ' +
+      'instead, use forceUpdate().'
+    ) : null);
+  }
+  ReactUpdateQueue.enqueueSetState(this, partialState);
+  if (callback) {
+    ReactUpdateQueue.enqueueCallback(this, callback);
+  }
+};
+
+/**
+ * Forces an update. This should only be invoked when it is known with
+ * certainty that we are **not** in a DOM transaction.
+ *
+ * You may want to call this when you know that some deeper aspect of the
+ * component's state has changed but `setState` was not called.
+ *
+ * This will not invoke `shouldComponentUpdate`, but it will invoke
+ * `componentWillUpdate` and `componentDidUpdate`.
+ *
+ * @param {?function} callback Called after update is complete.
+ * @final
+ * @protected
+ */
+ReactComponent.prototype.forceUpdate = function(callback) {
+  ReactUpdateQueue.enqueueForceUpdate(this);
+  if (callback) {
+    ReactUpdateQueue.enqueueCallback(this, callback);
+  }
+};
+
+/**
+ * Deprecated APIs. These APIs used to exist on classic React classes but since
+ * we would like to deprecate them, we're not going to move them over to this
+ * modern base class. Instead, we define a getter that warns if it's accessed.
+ */
+if ("production" !== process.env.NODE_ENV) {
+  var deprecatedAPIs = {
+    getDOMNode: [
+      'getDOMNode',
+      'Use React.findDOMNode(component) instead.'
+    ],
+    isMounted: [
+      'isMounted',
+      'Instead, make sure to clean up subscriptions and pending requests in ' +
+      'componentWillUnmount to prevent memory leaks.'
+    ],
+    replaceProps: [
+      'replaceProps',
+      'Instead, call React.render again at the top level.'
+    ],
+    replaceState: [
+      'replaceState',
+      'Refactor your code to use setState instead (see ' +
+      'https://github.com/facebook/react/issues/3236).'
+    ],
+    setProps: [
+      'setProps',
+      'Instead, call React.render again at the top level.'
+    ]
+  };
+  var defineDeprecationWarning = function(methodName, info) {
+    try {
+      Object.defineProperty(ReactComponent.prototype, methodName, {
+        get: function() {
+          ("production" !== process.env.NODE_ENV ? warning(
+            false,
+            '%s(...) is deprecated in plain JavaScript React classes. %s',
+            info[0],
+            info[1]
+          ) : null);
+          return undefined;
+        }
+      });
+    } catch (x) {
+      // IE will fail on defineProperty (es5-shim/sham too)
+    }
+  };
+  for (var fnName in deprecatedAPIs) {
+    if (deprecatedAPIs.hasOwnProperty(fnName)) {
+      defineDeprecationWarning(fnName, deprecatedAPIs[fnName]);
+    }
+  }
+}
+
+module.exports = ReactComponent;