port from perforce

intromat/Intromat/Nodes/Code/IntLiteralValue.cs

@@ -0,0 +1,25 @@
+using System;
+
+namespace Intromat.Nodes.Code
+{
+    public class IntLiteralValue : LiteralValueBase<int>
+    {
+        public int EvaluateDimension()
+        {
+            var relativeDimension = RelativeSource switch
+            {
+                ERelativeSource.Parent => 1 << ParentValue,
+                ERelativeSource.Input  => InputValue,
+                _                      => 1
+            };
+
+            var result = Value switch
+            {
+                < 0 => relativeDimension >> -Value,
+                > 0 => relativeDimension << Value,
+                _   => relativeDimension
+            };
+            return Math.Max(1, Math.Min(8192, result));
+        }
+    }
+}