simplify CIL rewriter hierarchy

1 files changed, 8 insertions, 7 deletions

diff --git a/src/StardewModdingAPI.AssemblyRewriters/Finders/EventFinder.cs b/src/StardewModdingAPI.AssemblyRewriters/Finders/EventFinder.cs
index 359ca63e..9d0184c6 100644
--- a/src/StardewModdingAPI.AssemblyRewriters/Finders/EventFinder.cs
+++ b/src/StardewModdingAPI.AssemblyRewriters/Finders/EventFinder.cs
@@ -1,11 +1,10 @@
 using Mono.Cecil;
 using Mono.Cecil.Cil;
-using StardewModdingAPI.AssemblyRewriters.Framework;
 
 namespace StardewModdingAPI.AssemblyRewriters.Finders
 {
     /// <summary>Finds CIL instructions that reference a given event.</summary>
-    public sealed class EventFinder : BaseMethodFinder
+    public sealed class EventFinder : IInstructionFinder
     {
         /*********
         ** Properties
@@ -21,7 +20,7 @@ namespace StardewModdingAPI.AssemblyRewriters.Finders
         ** Accessors
         *********/
         /// <summary>A brief noun phrase indicating what the instruction finder matches.</summary>
-        public override string NounPhrase { get; }
+        public string NounPhrase { get; }
 
 
         /*********
@@ -41,13 +40,15 @@ namespace StardewModdingAPI.AssemblyRewriters.Finders
         /*********
         ** Protected methods
         *********/
-        /// <summary>Get whether a method reference should be rewritten.</summary>
+        /// <summary>Get whether a CIL instruction matches.</summary>
         /// <param name="instruction">The IL instruction.</param>
-        /// <param name="methodRef">The method reference.</param>
         /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
-        protected override bool IsMatch(Instruction instruction, MethodReference methodRef, bool platformChanged)
+        public bool IsMatch(Instruction instruction, bool platformChanged)
         {
-            return methodRef.DeclaringType.FullName == this.FullTypeName
+            MethodReference methodRef = RewriteHelper.AsMethodReference(instruction);
+            return
+                methodRef != null
+                && methodRef.DeclaringType.FullName == this.FullTypeName
                 && (methodRef.Name == "add_" + this.EventName || methodRef.Name == "remove_" + this.EventName);
         }
     }