--- a/dmd/UnionDeclaration.d	Mon Apr 12 16:29:33 2010 +0400
+++ b/dmd/UnionDeclaration.d	Mon Apr 12 17:00:08 2010 +0100
@@ -7,20 +7,27 @@
 
 class UnionDeclaration : StructDeclaration
 {
-    this(Loc loc, Identifier id)
+	this(Loc loc, Identifier id)
 	{
 		super(loc, id);
 	}
-	
-    Dsymbol syntaxCopy(Dsymbol s)
+
+	Dsymbol syntaxCopy(Dsymbol s)
 	{
-		assert(false);
-	}
-	
-    string kind()
-	{
-		assert(false);
+		UnionDeclaration ud;
+
+		if (s)
+			ud = cast(UnionDeclaration)s;
+		else
+			ud = new UnionDeclaration(loc, ident);
+		StructDeclaration.syntaxCopy(ud);
+		return ud;
 	}
 
-    UnionDeclaration isUnionDeclaration() { return this; }
-}
\ No newline at end of file
+	string kind()
+	{
+		return "union";
+	}
+
+	UnionDeclaration isUnionDeclaration() { return this; }
+}