From b160a97f0e9f61ae189408ff2c771f3bafcfeb83 Mon Sep 17 00:00:00 2001
From: Laura Hausmann <laura@hausmann.dev>
Date: Sat, 7 Dec 2024 04:10:22 +0100
Subject: [PATCH] [backend/core] Fix ArrayTypeMismatchException in
 APMentionsResolver

---
 .../ActivityPub/MentionsResolver.cs           | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/Iceshrimp.Backend/Core/Federation/ActivityPub/MentionsResolver.cs b/Iceshrimp.Backend/Core/Federation/ActivityPub/MentionsResolver.cs
index 3f7b2c44..efdec6ba 100644
--- a/Iceshrimp.Backend/Core/Federation/ActivityPub/MentionsResolver.cs
+++ b/Iceshrimp.Backend/Core/Federation/ActivityPub/MentionsResolver.cs
@@ -1,3 +1,4 @@
+using System.Runtime.CompilerServices;
 using CommunityToolkit.HighPerformance;
 using Iceshrimp.Backend.Core.Configuration;
 using Iceshrimp.Backend.Core.Database.Tables;
@@ -45,6 +46,26 @@ public class MentionsResolver(IOptions<Config.InstanceSection> config) : ISingle
 		}
 	}
 
+	[OverloadResolutionPriority(1)]
+	private void ResolveMentions(
+		Span<IMfmInlineNode> nodes, string? host,
+		List<Note.MentionedUser> mentionCache,
+		SplitDomainMapping splitDomainMapping
+	)
+	{
+		for (var i = 0; i < nodes.Length; i++)
+		{
+			var node = nodes[i];
+			if (node is not MfmMentionNode mention)
+			{
+				ResolveMentions(node.Children, host, mentionCache, splitDomainMapping);
+				continue;
+			}
+
+			nodes[i] = ResolveMention(mention, host, mentionCache, splitDomainMapping);
+		}
+	}
+
 	private IMfmInlineNode ResolveMention(
 		MfmMentionNode node, string? host,
 		IEnumerable<Note.MentionedUser> mentionCache,