cleanup InteractionManager debugging a little

Summary: adding the flow types makes it impossible to forget to change them back.

Reviewed By: yungsters

Differential Revision: D14990037

fbshipit-source-id: d018e4cf6798d50bcfb44b55d3c68ca7f5beef72

Libraries/Interaction/InteractionManager.js

@@ -23,8 +23,8 @@ import type {Task} from 'TaskQueue';
 
 const _emitter = new EventEmitter();
 
-const DEBUG_DELAY = 0;
-const DEBUG = false;
+const DEBUG_DELAY: 0 = 0;
+const DEBUG: false = false;
 
 /**
  * InteractionManager allows long-running work to be scheduled after any
@@ -121,7 +121,7 @@ const InteractionManager = {
    * Notify manager that an interaction has started.
    */
   createInteractionHandle(): Handle {
-    DEBUG && infoLog('create interaction handle');
+    DEBUG && infoLog('InteractionManager: create interaction handle');
     _scheduleUpdate();
     const handle = ++_inc;
     _addInteractionSet.add(handle);
@@ -132,8 +132,8 @@ const InteractionManager = {
    * Notify manager that an interaction has completed.
    */
   clearInteractionHandle(handle: Handle) {
-    DEBUG && infoLog('clear interaction handle');
-    invariant(!!handle, 'Must provide a handle to clear.');
+    DEBUG && infoLog('InteractionManager: clear interaction handle');
+    invariant(!!handle, 'InteractionManager: Must provide a handle to clear.');
     _scheduleUpdate();
     _addInteractionSet.delete(handle);
     _deleteInteractionSet.add(handle);

Libraries/Interaction/TaskQueue.js

@@ -23,7 +23,7 @@ type PromiseTask = {
 };
 export type Task = Function | SimpleTask | PromiseTask;
 
-const DEBUG = false;
+const DEBUG: false = false;
 
 /**
  * TaskQueue - A system for queueing and executing a mix of simple callbacks and
@@ -100,10 +100,10 @@ class TaskQueue {
       const task = queue.shift();
       try {
         if (task.gen) {
-          DEBUG && infoLog('genPromise for task ' + task.name);
+          DEBUG && infoLog('TaskQueue: genPromise for task ' + task.name);
           this._genPromise((task: any)); // Rather than annoying tagged union
         } else if (task.run) {
-          DEBUG && infoLog('run task ' + task.name);
+          DEBUG && infoLog('TaskQueue: run task ' + task.name);
           task.run();
         } else {
           invariant(
@@ -111,7 +111,7 @@ class TaskQueue {
             'Expected Function, SimpleTask, or PromiseTask, but got:\n' +
               JSON.stringify(task, null, 2),
           );
-          DEBUG && infoLog('run anonymous task');
+          DEBUG && infoLog('TaskQueue: run anonymous task');
           task();
         }
       } catch (e) {
@@ -135,7 +135,7 @@ class TaskQueue {
     ) {
       this._queueStack.pop();
       DEBUG &&
-        infoLog('popped queue: ', {
+        infoLog('TaskQueue: popped queue: ', {
           stackIdx,
           queueStackSize: this._queueStack.length,
         });
@@ -152,13 +152,13 @@ class TaskQueue {
     // happens once it is fully processed.
     this._queueStack.push({tasks: [], popable: false});
     const stackIdx = this._queueStack.length - 1;
-    DEBUG && infoLog('push new queue: ', {stackIdx});
-    DEBUG && infoLog('exec gen task ' + task.name);
+    DEBUG && infoLog('TaskQueue: push new queue: ', {stackIdx});
+    DEBUG && infoLog('TaskQueue: exec gen task ' + task.name);
     task
       .gen()
       .then(() => {
         DEBUG &&
-          infoLog('onThen for gen task ' + task.name, {
+          infoLog('TaskQueue: onThen for gen task ' + task.name, {
             stackIdx,
             queueStackSize: this._queueStack.length,
           });