1 files changed, 71 insertions, 0 deletions
diff --git a/src/SMAPI.Mods.ErrorHandler/Patches/ObjectPatcher.cs b/src/SMAPI.Mods.ErrorHandler/Patches/ObjectPatcher.cs
new file mode 100644
index 00000000..c4b25b96
--- /dev/null
+++ b/src/SMAPI.Mods.ErrorHandler/Patches/ObjectPatcher.cs
@@ -0,0 +1,71 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using HarmonyLib;
+using StardewModdingAPI.Framework.Patching;
+using StardewValley;
+using SObject = StardewValley.Object;
+
+namespace StardewModdingAPI.Mods.ErrorHandler.Patches
+{
+    /// <summary>A Harmony patch for <see cref="SObject.getDescription"/> which intercepts crashes due to the item no longer existing.</summary>
+    /// <remarks>Patch methods must be static for Harmony to work correctly. See the Harmony documentation before renaming patch arguments.</remarks>
+    [SuppressMessage("ReSharper", "InconsistentNaming", Justification = "Argument names are defined by Harmony and methods are named for clarity.")]
+    [SuppressMessage("ReSharper", "IdentifierTypo", Justification = "Argument names are defined by Harmony and methods are named for clarity.")]
+    internal class ObjectPatcher : IHarmonyPatch
+    {
+        /*********
+        ** Public methods
+        *********/
+        /// <inheritdoc />
+        public void Apply(Harmony harmony)
+        {
+            // object.getDescription
+            harmony.Patch(
+                original: AccessTools.Method(typeof(SObject), nameof(SObject.getDescription)),
+                prefix: new HarmonyMethod(this.GetType(), nameof(ObjectPatcher.Before_Object_GetDescription))
+            );
+
+            // object.getDisplayName
+            harmony.Patch(
+                original: AccessTools.Method(typeof(SObject), "loadDisplayName"),
+                finalizer: new HarmonyMethod(this.GetType(), nameof(ObjectPatcher.Finalize_Object_loadDisplayName))
+            );
+        }
+
+
+        /*********
+        ** Private methods
+        *********/
+        /// <summary>The method to call instead of <see cref="StardewValley.Object.getDescription"/>.</summary>
+        /// <param name="__instance">The instance being patched.</param>
+        /// <param name="__result">The patched method's return value.</param>
+        /// <returns>Returns whether to execute the original method.</returns>
+        private static bool Before_Object_GetDescription(SObject __instance, ref string __result)
+        {
+            // invalid bigcraftables crash instead of showing '???' like invalid non-bigcraftables
+            if (!__instance.IsRecipe && __instance.bigCraftable.Value && !Game1.bigCraftablesInformation.ContainsKey(__instance.ParentSheetIndex))
+            {
+                __result = "???";
+                return false;
+            }
+
+            return true;
+        }
+
+        /// <summary>The method to call after <see cref="StardewValley.Object.loadDisplayName"/>.</summary>
+        /// <param name="__result">The patched method's return value.</param>
+        /// <param name="__exception">The exception thrown by the wrapped method, if any.</param>
+        /// <returns>Returns the exception to throw, if any.</returns>
+        private static Exception Finalize_Object_loadDisplayName(ref string __result, Exception __exception)
+        {
+            if (__exception is KeyNotFoundException)
+            {
+                __result = "???";
+                return null;
+            }
+
+            return __exception;
+        }
+    }
+}