--- a/dmd/TypeDelegate.d	Mon Aug 30 23:08:44 2010 +0200
+++ b/dmd/TypeDelegate.d	Tue Aug 31 02:12:15 2010 +0200
@@ -8,6 +8,7 @@
 import dmd.AddExp;
 import dmd.PtrExp;
 import dmd.IntegerExp;
+import dmd.MATCH;
 import dmd.NullExp;
 import dmd.TypeFunction;
 import dmd.HdrGenState;
@@ -77,6 +78,21 @@
 		return PTRSIZE * 2;
 	}
 	
+	MATCH implicitConvTo(Type to)
+	{
+		//writef("TypeDelegate::implicitConvTo(this=%p, to=%p)\n", this, to);
+		//writef("from: %s\n", toChars());
+		//writef("to  : %s\n", to.toChars());
+		if (this == to)
+			return MATCHexact;
+static if (false) // not allowing covariant conversions because it interferes with overriding
+{
+		if (to.ty == Tdelegate && this.nextOf().covariant(to.nextOf()) == 1)
+			return MATCHconvert;
+}
+		return MATCHnomatch;
+	}
+    
     override void toCBuffer2(OutBuffer buf, HdrGenState* hgs, MOD mod)
 	{
 		if (mod != this.mod)