natduca/gist:f59ee78f997249e635b3

## gistfile1.txt
diff --git a/tracing/tracing/base/task.html b/tracing/tracing/base/task.html
index bd876cb..6188bf7 100644
--- a/tracing/tracing/base/task.html
+++ b/tracing/tracing/base/task.html
@@ -46,11 +46,14 @@ tr.exportTo('tr.b', function() {
   }

   Task.prototype = {
+    get name() {
+      return this.runCb_.name;
+    },
+
     /*
      * See constructor documentation on semantics of subtasks.
      */
     subTask: function(cb, thisArg) {
-      if (cb instanceof Task)
         this.subTasks_.push(cb);
       else
         this.subTasks_.push(new Task(cb, thisArg));
@@ -94,6 +97,34 @@ tr.exportTo('tr.b', function() {
     },

     /*
+     * ...
+
+      // Note: timedAfter does not work when a task throws. This is because
+      // the task system doesn't support catching currently. At the time of
+      // writing, this is considered to be an acceptable tradeoff.
+     */
+    timedAfter: function(cb, thisArg) {
+      if (this.afterTask_)
+        throw new Error('Has an after task already');
+      var realTask;
+      if (cb instanceof Task)
+        realTask = cb;
+      else
+        realTask = new Task(cb, thisArg);
+
+      // TODO errcheck that realTask.name is not undefiend;
+
+      this.afterTask_ = new Task(function(task) {
+        timeBegin(realTask.name)
+        task.subTask(realTask, thisArg);
+        task.afterTask(function(cb) {
+          timeEnd();
+        })
+      });
+      return this.afterTask_;
+    },
+
+    /*
      * Adds a task after the chain of tasks.
      */
     enqueue: function(cb, thisArg) {
diff --git a/tracing/tracing/base/time_function.html b/tracing/tracing/base/time_function.html
index ab1e6f1..d4259d1 100644
--- a/tracing/tracing/base/time_function.html
+++ b/tracing/tracing/base/time_function.html
@@ -1,3 +1,33 @@
+/// notes to throw away
+
+timeFunction() {
+   timeBegin(name);
+   try {
+   res = cb()
+   } catch(e) {
+      timeEnd
+      throw e;
+   }
+
+   if (res instanceof Promise)
+     res.then(function(r) {
+       timeEnd(name);
+       return r;
+     }, function(err) {
+       timeEnd(name);
+       throw err;
+     });
+     return;
+   }
+
+   timeEnd(name);
+   return res;
+}
+
+
+
+
+
 <!DOCTYPE html>
 <!--
 Copyright (c) 2014 The Chromium Authors. All rights reserved.
	diff --git a/tracing/tracing/base/task.html b/tracing/tracing/base/task.html
	index bd876cb..6188bf7 100644
	--- a/tracing/tracing/base/task.html
	+++ b/tracing/tracing/base/task.html
	@@ -46,11 +46,14 @@ tr.exportTo('tr.b', function() {
	}

	Task.prototype = {
	+ get name() {
	+ return this.runCb_.name;
	+ },
	+
	/*
	* See constructor documentation on semantics of subtasks.
	*/
	subTask: function(cb, thisArg) {
	- if (cb instanceof Task)
	this.subTasks_.push(cb);
	else
	this.subTasks_.push(new Task(cb, thisArg));
	@@ -94,6 +97,34 @@ tr.exportTo('tr.b', function() {
	},

	/*
	+ * ...
	+
	+ // Note: timedAfter does not work when a task throws. This is because
	+ // the task system doesn't support catching currently. At the time of
	+ // writing, this is considered to be an acceptable tradeoff.
	+ */
	+ timedAfter: function(cb, thisArg) {
	+ if (this.afterTask_)
	+ throw new Error('Has an after task already');
	+ var realTask;
	+ if (cb instanceof Task)
	+ realTask = cb;
	+ else
	+ realTask = new Task(cb, thisArg);
	+
	+ // TODO errcheck that realTask.name is not undefiend;
	+
	+ this.afterTask_ = new Task(function(task) {
	+ timeBegin(realTask.name)
	+ task.subTask(realTask, thisArg);
	+ task.afterTask(function(cb) {
	+ timeEnd();
	+ })
	+ });
	+ return this.afterTask_;
	+ },
	+
	+ /*
	* Adds a task after the chain of tasks.
	*/
	enqueue: function(cb, thisArg) {
	diff --git a/tracing/tracing/base/time_function.html b/tracing/tracing/base/time_function.html
	index ab1e6f1..d4259d1 100644
	--- a/tracing/tracing/base/time_function.html
	+++ b/tracing/tracing/base/time_function.html
	@@ -1,3 +1,33 @@
	+/// notes to throw away
	+
	+timeFunction() {
	+ timeBegin(name);
	+ try {
	+ res = cb()
	+ } catch(e) {
	+ timeEnd
	+ throw e;
	+ }
	+
	+ if (res instanceof Promise)
	+ res.then(function(r) {
	+ timeEnd(name);
	+ return r;
	+ }, function(err) {
	+ timeEnd(name);
	+ throw err;
	+ });
	+ return;
	+ }
	+
	+ timeEnd(name);
	+ return res;
	+}
	+
	+
	+
	+
	+
	<!DOCTYPE html>
	<!--
	Copyright (c) 2014 The Chromium Authors. All rights reserved.