fixup!

README.md

@@ -172,7 +172,7 @@ interface AsyncLocalOptions<T> {
 class AsyncSnapshot {
   constructor();
 
-  run<R>(fn: (...args: any[]) => R, ...args: any[]): R;
+  restore<R>(fn: (...args: any[]) => R, ...args: any[]): R;
 }
 ```
 
@@ -225,7 +225,7 @@ function main() {
     // The snapshotDuringTop will restore all AsyncLocal to their snapshot
     // state and invoke the wrapped function. We pass a function which it will
     // invoke.
-    snapshotDuringTop.run(() => {
+    snapshotDuringTop.restore(() => {
       // Despite being lexically nested inside 'C', the snapshot restored us to
       // to the 'top' state.
       console.log(local.get()); // => 'top'
@@ -249,7 +249,7 @@ export function enqueueCallback(cb: () => void) {
   // Each callback is stored with the context at which it was enqueued.
   const snapshot = new AsyncSnapshot();
   queue.push(() => {
-    snapshot.run(cb);
+    snapshot.restore(cb);
   });
 }
 

spec.html

@@ -40,7 +40,7 @@ <h1>The Async Context Mapping Record Specification Type</h1>
               an AsyncLocal instance
             </td>
             <td>
-              The name of the AsyncLocal instance.
+              The AsyncLocal instance as the key in the mapping.
             </td>
           </tr>
           <tr>
@@ -51,7 +51,7 @@ <h1>The Async Context Mapping Record Specification Type</h1>
               an ECMAScript language value
             </td>
             <td>
-              The default value of the AsyncLocal instance when no entry is found in the mapping.
+              The value of the AsyncLocal instance in the mapping.
             </td>
           </tr>
         </table>
@@ -122,7 +122,7 @@ <h1>Agents</h1>
             <ins>a List of Async Context Mapping Records</ins>
           </td>
           <td>
-            <ins>A map from the AsyncContext's key symbol to the saved ECMAScript language value. Every Record in the List contains a unique [[AsyncContextKey]].</ins>
+            <ins>A map from the AsyncLocal instances to the saved ECMAScript language value. Every Record in the List contains a unique [[AsyncContextKey]]. The map is initially empty.</ins>
           </td>
         </tr>
       </table>
@@ -167,7 +167,7 @@ <h1>JobCallback Records</h1>
               <ins>a List of Async Context Mapping Records</ins>
             </td>
             <td>
-              <ins>A map from the AsyncContext's key symbol to the saved ECMAScript language value. Every Record in the List contains a unique [[AsyncContextKey]].</ins>
+              <ins>A map from the AsyncLocal instances to the saved ECMAScript language value. Every Record in the List contains a unique [[AsyncContextKey]].</ins>
             </td>
           </tr>
           <tr>
@@ -320,8 +320,8 @@ <h1>Properties of the AsyncSnapshot Prototype Object</h1>
         <li>does not have any of the other internal slots of AsyncSnapshot instances.</li>
       </ul>
 
-      <emu-clause id="sec-asyncsnapshot.prototype.run">
-        <h1>AsyncSnapshot.prototype.run ( _func_, ..._args_ )</h1>
+      <emu-clause id="sec-asyncsnapshot.prototype.restore">
+        <h1>AsyncSnapshot.prototype.restore ( _func_, ..._args_ )</h1>
         <p>This method performs the following steps when called:</p>
         <emu-alg>
           1. Let _asyncSnapshot_ be the *this* value.
@@ -380,7 +380,7 @@ <h1>The AsyncLocal Constructor</h1>
         <li>is the initial value of the *"AsyncLocal"* property of the global object.</li>
         <li>creates and initializes a new AsyncLocal when called as a constructor.</li>
         <li>is not intended to be called as a function and will throw an exception when called in that manner.</li>
-        <li>may be used as the value in an `extends` clause of a class definition. Subclass constructors that intend to inherit the specified AsyncLocal behaviour must include a `super` call to the AsyncLocal constructor to create and initialize the subclass instance with the internal state necessary to support the `AsyncLocal` and `AsyncLocal.prototype` built-in methods.</li>
+        <li>may be used as the value in an `extends` clause of a class definition. Subclass constructors that intend to inherit the specified AsyncLocal behaviour must include a `super` call to the AsyncLocal constructor to create and initialize the subclass instance with the internal state necessary to support the `AsyncLocal.prototype` built-in methods.</li>
       </ul>
 
       <emu-clause id="sec-asynclocal">
@@ -389,13 +389,14 @@ <h1>AsyncLocal ( _options_ )</h1>
 
         <emu-alg>
           1. If NewTarget is *undefined*, throw a *TypeError* exception.
+          1. Let _nameStr_ be the empty String.
+          1. Let _defaultValue_ be *undefined*.
           1. If _options_ is an Object, then
-            1. Let _name_ be ? Get(_options_, *"name"*).
-            1. Let _nameStr_ be ? ToString(_name_).
+            1. Let _namePresent_ be ? HasProperty(_options_, *"name"*).
+            1. If _namePresent_ is *true*, then
+              1. Let _name_ be ? Get(_options_, *"name"*).
+              1. Let _nameStr_ be ? ToString(_name_).
             1. Let _defaultValue_ be ? Get(_options_, *"defaultValue"*).
-          1. Else,
-            1. Let _nameStr_ be the empty String.
-            1. Let _defaultValue_ be *undefined*.
           1. Let _asyncLocal_ be ? OrdinaryCreateFromConstructor(NewTarget, *"%AsyncLocal.prototype%"*, « [[AsyncLocalName]], [[AsyncLocalDefaultValue]] »).
           1. Set _asyncLocal_.[[AsyncLocalName]] to _nameStr_.
           1. Set _asyncLocal_.[[AsyncLocalDefaultValue]] to _defaultValue_.