--- a/dwtx/dwtxhelper/Collection.d	Wed Sep 10 23:17:25 2008 +0200
+++ b/dwtx/dwtxhelper/Collection.d	Thu Sep 11 00:32:24 2008 +0200
@@ -1921,8 +1921,9 @@
         data.length = size;
         data.length = 0;
     }
-    this(Collection){
-        implMissing( __FILE__, __LINE__ );
+    this(Collection col){
+        this(cast(int)(col.size*1.1));
+        addAll(col);
     }
     void   add(int index, Object element){
         data.length = data.length +1;
@@ -1937,8 +1938,13 @@
         return add(stringcast(o));
     }
     bool    addAll(Collection c){
-        implMissing( __FILE__, __LINE__ );
-        return false;
+        if( c.size() is 0 ) return false;
+        uint idx = data.length;
+        data.length = data.length + c.size();
+        foreach( o; c ){
+            data[ idx++ ] = o;
+        }
+        return true;
     }
     bool    addAll(int index, Collection c){
         implMissing( __FILE__, __LINE__ );
@@ -2113,7 +2119,10 @@
 
     // only for D
     public int opApply (int delegate(ref Object value) dg){
-        implMissing( __FILE__, __LINE__ );
+        foreach( o; data ){
+            auto res = dg( o );
+            if( res ) return res;
+        }
         return 0;
     }
 }