Add annotations to unannotated variable declarations [manually-modified]

Reviewed By: panagosg7

Differential Revision: D35948108

fbshipit-source-id: 7d286c9dd66dbd25281e2d831691f8bb34504b5d

Libraries/Core/Devtools/parseHermesStack.js

@@ -100,7 +100,7 @@ function parseLine(line: string): ?HermesStackEntry {
 
 module.exports = function parseHermesStack(stack: string): HermesParsedStack {
   const lines = stack.split(/\n/);
-  let entries = [];
+  let entries: Array<HermesStackEntryFrame | HermesStackEntrySkipped> = [];
   let lastMessageLine = -1;
   for (let i = 0; i < lines.length; ++i) {
     const line = lines[i];

Libraries/Interaction/BridgeSpyStallHandler.js

@@ -10,14 +10,15 @@
 
 'use strict';
 
+import type {SpyData} from '../BatchedBridge/MessageQueue';
 const JSEventLoopWatchdog = require('./JSEventLoopWatchdog');
-const MessageQueue = require('../BatchedBridge/MessageQueue');
 
+const MessageQueue = require('../BatchedBridge/MessageQueue');
 const infoLog = require('../Utilities/infoLog');
 
 const BridgeSpyStallHandler = {
   register: function () {
-    let spyBuffer = [];
+    let spyBuffer: Array<SpyData> = [];
     MessageQueue.spy(data => {
       spyBuffer.push(data);
     });
@@ -27,7 +28,7 @@ const BridgeSpyStallHandler = {
         infoLog(
           spyBuffer.length + ' bridge messages during stall: ',
           spyBuffer.map(info => {
-            let args = '<args>';
+            let args: string | Array<?string> = '<args>';
             try {
               args = JSON.stringify(info.args);
             } catch (e1) {

Libraries/Interaction/InteractionManager.js

@@ -154,7 +154,7 @@ const _interactionSet = new Set();
 const _addInteractionSet = new Set();
 const _deleteInteractionSet = new Set();
 const _taskQueue = new TaskQueue({onMoreTasks: _scheduleUpdate});
-let _nextUpdateHandle = 0;
+let _nextUpdateHandle: $FlowFixMe | TimeoutID = 0;
 let _inc = 0;
 let _deadline = -1;
 

Libraries/Lists/VirtualizedList.js

@@ -1128,7 +1128,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
         )}
       </VirtualizedListContextProvider>
     );
-    let ret = innerRet;
+    let ret: React.Node = innerRet;
     if (__DEV__) {
       ret = (
         <ScrollView.Context.Consumer>
@@ -1742,7 +1742,10 @@ class VirtualizedList extends React.PureComponent<Props, State> {
       return;
     }
     this.setState(state => {
-      let newState;
+      let newState: ?(
+        | {first: number, last: number, ...}
+        | $TEMPORARY$object<{first: number, last: number}>
+      );
       const {contentLength, offset, visibleLength} = this._scrollMetrics;
       if (!isVirtualizationDisabled) {
         // If we run this with bogus data, we'll force-render window {first: 0, last: 0},
@@ -2109,7 +2112,7 @@ function describeNestedLists(childList: {
     `    listKey: ${childList.key}\n` +
     `    cellKey: ${childList.cellKey}`;
 
-  let debugInfo = childList.parentDebugInfo;
+  let debugInfo: ?ListDebugInfo = childList.parentDebugInfo;
   while (debugInfo) {
     trace +=
       `\n  Parent (${debugInfo.horizontal ? 'horizontal' : 'vertical'}):\n` +

Libraries/LogBox/Data/LogBoxData.js

@@ -156,7 +156,7 @@ function appendNewLog(newLog) {
     // sybolication for up to a second before adding the log.
     const OPTIMISTIC_WAIT_TIME = 1000;
 
-    let addPendingLog = () => {
+    let addPendingLog: ?() => void = () => {
       logs.add(newLog);
       if (_selectedIndex < 0) {
         setSelectedLog(logs.size - 1);

Libraries/ReactNative/AppContainer.js

@@ -88,7 +88,7 @@ class AppContainer extends React.Component<Props, State> {
       }
     }
 
-    let innerView = (
+    let innerView: React.Node = (
       <View
         collapsable={!this.state.inspector}
         key={this.state.mainKey}

Libraries/Utilities/stringifySafe.js

@@ -43,7 +43,10 @@ export function createStringifySafeWithLimits(limits: {|
       return value;
     }
 
-    let retval = value;
+    let retval:
+      | string
+      | {+[string]: mixed}
+      | $TEMPORARY$object<{'...(truncated keys)...': number}> = value;
     if (Array.isArray(value)) {
       if (stack.length >= maxDepth) {
         retval = `[ ... array with ${value.length} values ... ]`;

Libraries/WebSocket/WebSocket.js

@@ -230,7 +230,7 @@ class WebSocket extends (EventTarget(...WEBSOCKET_EVENTS): any) {
         if (ev.id !== this._socketId) {
           return;
         }
-        let data = ev.data;
+        let data: Blob | BlobData | ArrayBuffer | string = ev.data;
         switch (ev.type) {
           case 'binary':
             data = base64.toByteArray(ev.data).buffer;

ReactCommon/hermes/inspector/tools/msggen/src/Property.js

@@ -195,7 +195,7 @@ class ArrayProperty extends Property {
 
   getFullCppType(): string {
     let elemType: string = 'folly::dynamic';
-    let recursive = false;
+    let recursive: ?(false | boolean) = false;
 
     if (this.items) {
       if (this.items.type) {

packages/rn-tester/js/examples/Accessibility/AccessibilityExample.js

@@ -228,7 +228,7 @@ class CheckboxExample extends React.Component<
   };
 
   _onCheckboxPress = () => {
-    let checkboxState = false;
+    let checkboxState: boolean | $TEMPORARY$string<'mixed'> = false;
     if (this.state.checkboxState === false) {
       checkboxState = 'mixed';
     } else if (this.state.checkboxState === 'mixed') {