From c2ba8baf7c808b235b2efe3ecda689ac790d1ec5 Mon Sep 17 00:00:00 2001
From: Robert Maynard <robert.maynard@kitware.com>
Date: Mon, 4 Jan 2016 15:40:37 -0500
Subject: [PATCH] Allow vtkm::cont::Field to have a default constructor.

When designing vtkm::filter we needed the ability to construct invalid Fields.
This now allows us to do exactly that.
---
 vtkm/cont/Field.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/vtkm/cont/Field.h b/vtkm/cont/Field.h
index 52ad548c5..0249d3faa 100644
--- a/vtkm/cont/Field.h
+++ b/vtkm/cont/Field.h
@@ -534,6 +534,20 @@ public:
     VTKM_ASSERT_CONT(this->Association == ASSOC_LOGICAL_DIM);
   }
 
+  VTKM_CONT_EXPORT
+  Field()
+    : Name(),
+      Order(),
+      Association(),
+      AssocCellSetName(),
+      AssocLogicalDim(),
+      Data(),
+      Bounds(),
+      ModifiedFlag(true)
+  {
+    //Generate an empty field
+  }
+
   VTKM_CONT_EXPORT
   const std::string &GetName() const
   {