1 files changed, 32 insertions, 0 deletions

diff --git a/ddl/lib/LambdaCube.IR.RT.cs b/ddl/lib/LambdaCube.IR.RT.cs
new file mode 100644
index 0000000..4da3733
--- /dev/null
+++ b/ddl/lib/LambdaCube.IR.RT.cs
@@ -0,0 +1,32 @@
+using System.Collections.Generic;
+
+
+namespace LambdaCube.IR {
+
+  public struct Maybe<T>
+  {
+    public bool valid;
+    public T data;
+  }
+
+  public struct V2<T>
+  {
+    public T x;
+    public T y;
+  }
+
+  public struct V3<T>
+  {
+    public T x;
+    public T y;
+    public T z;
+  }
+
+  public struct V4<T>
+  {
+    public T x;
+    public T y;
+    public T z;
+    public T w;
+  }
+}
\ No newline at end of file