prevent object.loadDisplayName errors due to invalid/missing item data

1 files changed, 34 insertions, 0 deletions

diff --git a/src/SMAPI/Framework/Patching/PatchHelper.cs b/src/SMAPI/Framework/Patching/PatchHelper.cs
new file mode 100644
index 00000000..4cb436f0
--- /dev/null
+++ b/src/SMAPI/Framework/Patching/PatchHelper.cs
@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+
+namespace StardewModdingAPI.Framework.Patching
+{
+    /// <summary>Provides generic methods for implementing Harmony patches.</summary>
+    internal class PatchHelper
+    {
+        /*********
+        ** Fields
+        *********/
+        /// <summary>The interception keys currently being intercepted.</summary>
+        private static readonly HashSet<string> InterceptingKeys = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+
+
+        /*********
+        ** Public methods
+        *********/
+        /// <summary>Track a method that will be intercepted.</summary>
+        /// <param name="key">The intercept key.</param>
+        /// <returns>Returns false if the method was already marked for interception, else true.</returns>
+        public static bool StartIntercept(string key)
+        {
+            return PatchHelper.InterceptingKeys.Add(key);
+        }
+
+        /// <summary>Track a method as no longer being intercepted.</summary>
+        /// <param name="key">The intercept key.</param>
+        public static void StopIntercept(string key)
+        {
+            PatchHelper.InterceptingKeys.Remove(key);
+        }
+    }
+}