Handle null strings returned from CLR using sorear++'s suggestion.

FROGGS · Jun 12, 2012 · a660099 · a660099
1 parent e52d6c3
commit a660099
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/NieczaCLR.cs b/lib/NieczaCLR.cs
@@ -788,7 +788,7 @@ public class CLRWrapperProvider {
             if (cty == typeof(bool))
                 return Kernel.BoxAnyMO((bool)ret, Kernel.BoolMO);
             if (cty == typeof(string))
-                return Kernel.BoxAnyMO((string)ret, Kernel.StrMO);
+                return ret == null ? Kernel.StrMO.typeObj : Kernel.BoxAnyMO((string)ret, Kernel.StrMO);
             if (cty == typeof(Variable))
                 return (Variable)ret;
             if (cty == typeof(P6any))