X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=mcs%2Fgmcs%2Fexpression.cs;h=3985cd5818cf8a0f8661dba3622bf71368784743;hb=38f320d19a29a3e7d6a92cdb0b3ebec149d7c1a7;hp=79eb6c8dd79efc52e7fbbbef3cd6602ce6fa21b8;hpb=bb8d28a9eda0bb027105a2f6c9a698d1432bf34d;p=mono.git

diff --git a/mcs/gmcs/expression.cs b/mcs/gmcs/expression.cs
index 79eb6c8dd79..3985cd5818c 100644
--- a/mcs/gmcs/expression.cs
+++ b/mcs/gmcs/expression.cs
@@ -8115,6 +8115,21 @@ namespace Mono.CSharp {
 		{
 			Indexers ix = empty;
 
+			if (lookup_type.IsGenericParameter) {
+				GenericConstraints gc = TypeManager.GetTypeParameterConstraints (lookup_type);
+				if (gc == null)
+					return empty;
+
+				if (gc.HasClassConstraint)
+					Append (ref ix, caller_type, GetIndexersForTypeOrInterface (caller_type, gc.ClassConstraint));
+
+				Type[] ifaces = gc.InterfaceConstraints;
+				foreach (Type itype in ifaces)
+					Append (ref ix, caller_type, GetIndexersForTypeOrInterface (caller_type, itype));
+
+				return ix;
+			}
+
 			Type copy = lookup_type;
 			while (copy != TypeManager.object_type && copy != null){
 				Append (ref ix, caller_type, GetIndexersForTypeOrInterface (caller_type, copy));