Various utility classes moved to flash-utils.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@5889 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/as/com/threerings/io/Streamer.as

@@ -26,6 +26,7 @@ import flash.utils.Dictionary;
 
 import com.threerings.util.ClassUtil;
 import com.threerings.util.Enum;
+import com.threerings.util.env.Environment;
 
 import com.threerings.io.streamers.ArrayStreamer;
 import com.threerings.io.streamers.ByteStreamer;
@@ -75,10 +76,10 @@ public class Streamer
             // But: the code is smaller, so that wins
             var clazz :Class = ClassUtil.getClassByName(Translations.getFromServer(jname));
 
-            if (ClassUtil.isAssignableAs(Enum, clazz)) {
+            if (Environment.isAssignableAs(Enum, clazz)) {
                 streamer = new EnumStreamer(clazz, jname);
 
-            } else if (ClassUtil.isAssignableAs(Streamable, clazz)) {
+            } else if (Environment.isAssignableAs(Streamable, clazz)) {
                 streamer = new Streamer(clazz, jname);
 
             } else {

src/as/com/threerings/io/streamers/ArrayStreamer.as

@@ -22,7 +22,9 @@
 package com.threerings.io.streamers {
 
 import com.threerings.util.ClassUtil;
+import com.threerings.util.Enum;
 import com.threerings.util.Log;
+import com.threerings.util.env.Environment;
 
 import com.threerings.io.ArrayMask;
 import com.threerings.io.ObjectInputStream;
@@ -50,9 +52,8 @@ public class ArrayStreamer extends Streamer
             // form is "[L<class>;"
             var baseJClass :String = jname.substring(2, jname.length - 1);
             _delegate = Streamer.getStreamerByJavaName(baseJClass);
-            _elementType = ClassUtil.getClassByName(
-                Translations.getFromServer(baseJClass));
-            _isFinal = ClassUtil.isFinal(_elementType);
+            _elementType = ClassUtil.getClassByName(Translations.getFromServer(baseJClass));
+            _isFinal = isFinal(_elementType);
 
         } else if (secondChar === "I") {
             _elementType = int;
@@ -148,6 +149,23 @@ public class ArrayStreamer extends Streamer
         }
     }
 
+    protected static function isFinal (type :Class) :Boolean
+    {
+        if (type === String) {
+            return true;
+        }
+
+        // all enums are final, even if you forget to make your enum class final, you punk
+        if (Environment.isAssignableAs(Enum, type)) {
+            return true;
+        }
+
+        // TODO: there's currently no way to determine final from the class
+        // I thought examining the prototype might do it, but no dice.
+        // Fuckers!
+        return false;
+    }
+
     /** A streamer for our elements. */
     protected var _delegate :Streamer;