Flowify a bunch of Libraries

Libraries/RKBackendNode/queryLayoutByID.js

@@ -7,12 +7,25 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @providesModule queryLayoutByID
+ * @flow
  */
 'use strict';
 
 var ReactIOSTagHandles = require('ReactIOSTagHandles');
 var RCTUIManager = require('NativeModules').UIManager;
 
+type OnSuccessCallback = (
+  left: number,
+  top: number,
+  width: number,
+  height: number,
+  pageX: number,
+  pageY: number
+) => void
+
+// I don't know what type error is...
+type OnErrorCallback = (error: any) => void
+
 /**
  * Queries the layout of a view. The layout does not reflect the element as
  * seen by the user, rather it reflects the position within the layout system,
@@ -32,7 +45,11 @@ var RCTUIManager = require('NativeModules').UIManager;
  * @param {function} onError `func(error)`
  * @param {function} onSuccess `func(left, top, width, height, pageX, pageY)`
  */
-var queryLayoutByID = function(rootNodeID, onError, onSuccess) {
+var queryLayoutByID = function(
+  rootNodeID: string,
+  onError: OnErrorCallback,
+  onSuccess: OnSuccessCallback
+): void {
   // Native bridge doesn't *yet* surface errors.
   RCTUIManager.measure(
     ReactIOSTagHandles.rootNodeIDToTag[rootNodeID],

Libraries/ReactIOS/ReactIOSGlobalInteractionHandler.js

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @providesModule ReactIOSGlobalInteractionHandler
+ * @flow
  */
 'use strict';
 
@@ -17,7 +18,7 @@ var InteractionManager = require('InteractionManager');
 var interactionHandle = null;
 
 var ReactIOSGlobalInteractionHandler = {
-  onChange: function(numberActiveTouches) {
+  onChange: function(numberActiveTouches: number) {
     if (numberActiveTouches === 0) {
       if (interactionHandle) {
         InteractionManager.clearInteractionHandle(interactionHandle);

Libraries/ReactIOS/ReactIOSGlobalResponderHandler.js

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @providesModule ReactIOSGlobalResponderHandler
+ * @flow
  */
 'use strict';
 
@@ -14,7 +15,7 @@ var RCTUIManager = require('NativeModules').UIManager;
 var ReactIOSTagHandles = require('ReactIOSTagHandles');
 
 var ReactIOSGlobalResponderHandler = {
-  onChange: function(from, to) {
+  onChange: function(from: string, to: string) {
     if (to !== null) {
       RCTUIManager.setJSResponder(
         ReactIOSTagHandles.mostRecentMountedNodeHandleForRootNodeID(to)

Libraries/ReactIOS/ReactIOSMount.js

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @providesModule ReactIOSMount
+ * @flow
  */
 'use strict';
 
@@ -83,7 +84,10 @@ var ReactIOSMount = {
    * @param {ReactComponent} instance Instance to render.
    * @param {containerTag} containerView Handle to native view tag
    */
-  renderComponent: function(descriptor, containerTag) {
+  renderComponent: function(
+    descriptor: ReactComponent,
+    containerTag: number
+  ) {
     var instance = instantiateReactComponent(descriptor);
 
     if (!ReactIOSTagHandles.reactTagIsNativeTopRootID(containerTag)) {
@@ -152,7 +156,9 @@ var ReactIOSMount = {
    * asynchronously, it's easier to just have this method be the one that calls
    * for removal of the view.
    */
-  unmountComponentAtNodeAndRemoveContainer: function(containerTag) {
+  unmountComponentAtNodeAndRemoveContainer: function(
+    containerTag: number
+  ) {
     ReactIOSMount.unmountComponentAtNode(containerTag);
     // call back into native to remove all of the subviews from this container
     RCTUIManager.removeRootView(containerTag);
@@ -163,7 +169,7 @@ var ReactIOSMount = {
    * that has been rendered and unmounting it. There should just be one child
    * component at this time.
    */
-  unmountComponentAtNode: function(containerTag) {
+  unmountComponentAtNode: function(containerTag: number): bool {
     var containerID = ReactIOSTagHandles.tagToRootNodeID[containerTag];
 
     invariant(
@@ -185,20 +191,25 @@ var ReactIOSMount = {
    * Unmounts a component and sends messages back to iOS to remove its subviews.
    *
    * @param {ReactComponent} instance React component instance.
-   * @param {int} containerID ID of container we're removing from.
+   * @param {string} containerID ID of container we're removing from.
    * @final
    * @internal
    * @see {ReactIOSMount.unmountComponentAtNode}
    */
-  unmountComponentFromNode: function(instance, containerID) {
+  unmountComponentFromNode: function(
+    instance: ReactComponent,
+    containerID: string
+  ) {
     // call back into native to remove all of the subviews from this container
-    instance.unmountComponent();
+    // TODO: ReactComponent.prototype.unmountComponent is missing from Flow's
+    // react lib.
+    (instance: any).unmountComponent();
     var containerTag =
       ReactIOSTagHandles.mostRecentMountedNodeHandleForRootNodeID(containerID);
     RCTUIManager.removeSubviewsFromContainerWithID(containerTag);
   },
 
-  getNode: function(id) {
+  getNode: function<T>(id: T): T {
     return id;
   }
 };

Libraries/ReactIOS/ReactIOSNativeComponent.js

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @providesModule ReactIOSNativeComponent
+ * @flow
  */
 'use strict';
 
@@ -28,13 +29,20 @@ var registrationNames = ReactIOSEventEmitter.registrationNames;
 var putListener = ReactIOSEventEmitter.putListener;
 var deleteAllListeners = ReactIOSEventEmitter.deleteAllListeners;
 
+type ReactIOSNativeComponentViewConfig = {
+  validAttributes: Object;
+  uiViewClassName: string;
+}
+
 /**
  * @constructor ReactIOSNativeComponent
  * @extends ReactComponent
  * @extends ReactMultiChild
  * @param {!object} UIKit View Configuration.
  */
-var ReactIOSNativeComponent = function(viewConfig) {
+var ReactIOSNativeComponent = function(
+  viewConfig: ReactIOSNativeComponentViewConfig
+) {
   this.viewConfig = viewConfig;
 };
 

Libraries/ReactIOS/ReactIOSReconcileTransaction.js

@@ -7,7 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @providesModule ReactIOSReconcileTransaction
- * @typechecks static-only
+ * @flow
  */
 
 "use strict";

Libraries/ReactIOS/ReactIOSStyleAttributes.js

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @providesModule ReactIOSStyleAttributes
+ * @flow
  */
 
 "use strict";

Libraries/ReactIOS/ReactIOSTagHandles.js

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @providesModule ReactIOSTagHandles
+ * @flow
  */
 'use strict';
 
@@ -31,7 +32,7 @@ var ReactIOSTagHandles = {
   tagsStartAt: INITIAL_TAG_COUNT,
   tagCount: INITIAL_TAG_COUNT,
 
-  allocateTag: function() {
+  allocateTag: function(): number {
     // Skip over root IDs as those are reserved for native
     while (this.reactTagIsNativeTopRootID(ReactIOSTagHandles.tagCount)) {
       ReactIOSTagHandles.tagCount++;
@@ -50,13 +51,18 @@ var ReactIOSTagHandles = {
    * `unmountComponent` isn't the correct time because that doesn't imply that
    * the native node has been natively unmounted.
    */
-  associateRootNodeIDWithMountedNodeHandle: function(rootNodeID, tag) {
+  associateRootNodeIDWithMountedNodeHandle: function(
+    rootNodeID: ?string,
+    tag: ?number
+  ) {
     warning(rootNodeID && tag, 'Root node or tag is null when associating');
-    ReactIOSTagHandles.tagToRootNodeID[tag] = rootNodeID;
+    if (rootNodeID && tag) {
-    ReactIOSTagHandles.rootNodeIDToTag[rootNodeID] = tag;
+      ReactIOSTagHandles.tagToRootNodeID[tag] = rootNodeID;
+      ReactIOSTagHandles.rootNodeIDToTag[rootNodeID] = tag;
+    }
   },
 
-  allocateRootNodeIDForTag: function(tag) {
+  allocateRootNodeIDForTag: function(tag: number): string {
     invariant(
       this.reactTagIsNativeTopRootID(tag),
       'Expect a native root tag, instead got ', tag
@@ -64,7 +70,7 @@ var ReactIOSTagHandles = {
     return '.r[' + tag + ']{TOP_LEVEL}';
   },
 
-  reactTagIsNativeTopRootID: function(reactTag) {
+  reactTagIsNativeTopRootID: function(reactTag: number): bool {
     // We reserve all tags that are 1 mod 10 for native root views
     return reactTag % 10 === 1;
   },
@@ -81,13 +87,15 @@ var ReactIOSTagHandles = {
    * @return {number} Tag ID of native view for most recent mounting of
    * `rootNodeID`.
    */
-  mostRecentMountedNodeHandleForRootNodeID: function(rootNodeID) {
+  mostRecentMountedNodeHandleForRootNodeID: function(
+    rootNodeID: string
+  ): number {
     return ReactIOSTagHandles.rootNodeIDToTag[rootNodeID];
   },
 
-  tagToRootNodeID: [],
+  tagToRootNodeID: ([] : Array<string>),
 
-  rootNodeIDToTag: {}
+  rootNodeIDToTag: ({} : {[key: string]: number})
 };
 
 module.exports = ReactIOSTagHandles;

Libraries/ReactIOS/ReactIOSViewAttributes.js

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @providesModule ReactIOSViewAttributes
+ * @flow
  */
 
 "use strict";