From c7debc2346156ca559341c0860e6aa60af50c938 Mon Sep 17 00:00:00 2001
From: Simon Rodriguez <mrsimonrodriguez@gmail.com>
Date: Sun, 27 Nov 2022 15:07:37 +0100
Subject: [PATCH] Added ifdef 2021_3_or_newer where Unity upgraded to net
 standard 2.1 where Dictionary.EnsureCapacity is added.

---
 Scripts/Node.cs          | 2 ++
 Scripts/NodeDataCache.cs | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/Scripts/Node.cs b/Scripts/Node.cs
index 93396bf..62a2f4a 100644
--- a/Scripts/Node.cs
+++ b/Scripts/Node.cs
@@ -406,7 +406,9 @@ namespace XNode {
 
             public void OnAfterDeserialize() {
                 this.Clear();
+#if UNITY_2021_3_OR_NEWER                
                 this.EnsureCapacity(keys.Count);
+#endif
 
                 if (keys.Count != values.Count)
                     throw new System.Exception("there are " + keys.Count + " keys and " + values.Count + " values after deserialization. Make sure that both key and value types are serializable.");
diff --git a/Scripts/NodeDataCache.cs b/Scripts/NodeDataCache.cs
index 08ac91b..32906a6 100644
--- a/Scripts/NodeDataCache.cs
+++ b/Scripts/NodeDataCache.cs
@@ -37,7 +37,9 @@ namespace XNode {
 
             List<NodePort> typePortCache;
             if (portDataCache.TryGetValue(nodeType, out typePortCache)) {
+#if UNITY_2021_3_OR_NEWER
                 staticPorts.EnsureCapacity(typePortCache.Count);
+#endif
                 for (int i = 0; i < typePortCache.Count; i++) {
                     staticPorts.Add(typePortCache[i].fieldName, typePortCache[i]);
                 }