static bool ImplicitReferenceConversionExists(MdbEvaluationContext ctx,
TargetStructType source,
TargetStructType target)
{
if (source == target)
{
return(true);
}
if (source.Module.Name.StartsWith("mscorlib,") && target.Module.Name.StartsWith("mscorlib,"))
{
Type t1 = Type.GetType(source.Name);
Type t2 = Type.GetType(target.Name);
return(t2.IsAssignableFrom(t1));
}
if (!source.HasParent)
{
return(false);
}
TargetStructType parent_type = source.GetParentType(ctx.Thread);
return(ImplicitReferenceConversionExists(ctx, parent_type, target));
}
static bool TryParentCast(MdbEvaluationContext ctx, TargetStructType source_type, TargetStructType target_type)
{
if (source_type == target_type)
{
return(true);
}
if (!source_type.HasParent)
{
return(false);
}
TargetStructType parent_type = source_type.GetParentType(ctx.Thread);
return(TryParentCast(ctx, parent_type, target_type));
}
static TargetStructObject TryParentCast(MdbEvaluationContext ctx, TargetStructObject source, TargetStructType source_type, TargetStructType target_type)
{
if (source_type == target_type)
{
return(source);
}
if (!source_type.HasParent)
{
return(null);
}
TargetStructType parent_type = source_type.GetParentType(ctx.Thread);
source = TryParentCast(ctx, source, parent_type, target_type);
if (source == null)
{
return(null);
}
return(source.GetParentObject(ctx.Thread) as TargetClassObject);
}