initial commit

Library/PackageCache/com.unity.shadergraph@8148.12.1-8/Editor/Data/Graphs/SerializableGuid.cs

@@ -0,0 +1,44 @@
+using System;
+using UnityEngine;
+
+namespace UnityEditor.ShaderGraph
+{
+    [Serializable]
+    class SerializableGuid : ISerializationCallbackReceiver
+    {
+        public SerializableGuid()
+        {
+            m_Guid = Guid.NewGuid();
+        }
+
+        public SerializableGuid(Guid guid)
+        {
+            m_Guid = guid;
+        }
+
+        [NonSerialized]
+        private Guid m_Guid;
+
+        [SerializeField]
+        private string m_GuidSerialized;
+
+        public Guid guid
+        {
+            get { return m_Guid; }
+            internal set { m_Guid = value; } // allow id to be overwritten when necessary
+        }
+
+        public virtual void OnBeforeSerialize()
+        {
+            m_GuidSerialized = m_Guid.ToString();
+        }
+
+        public virtual void OnAfterDeserialize()
+        {
+            if (!string.IsNullOrEmpty(m_GuidSerialized))
+                m_Guid = new Guid(m_GuidSerialized);
+            else
+                m_Guid = Guid.NewGuid();
+        }
+    }
+}