diff --git a/src/main/kotlin/app/revanced/patcher/Patcher.kt b/src/main/kotlin/app/revanced/patcher/Patcher.kt
index 1e7433d..3bf2359 100644
--- a/src/main/kotlin/app/revanced/patcher/Patcher.kt
+++ b/src/main/kotlin/app/revanced/patcher/Patcher.kt
@@ -20,11 +20,11 @@ val NAMER = BasicDexFileNamer()
 /**
  * ReVanced Patcher.
  * @param input The input file (an apk or any other multi dex container).
- * @param signatures An array of method signatures for the patches
+ * @param signatures A list of method signatures for the patches.
  */
 class Patcher(
     input: File,
-    signatures: Array<MethodSignature>,
+    signatures: Iterable<MethodSignature>,
 ) {
     private val cache: Cache
     private val patches = mutableSetOf<Patch>()
@@ -92,7 +92,7 @@ class Patcher(
      * Add a patch to the patcher.
      * @param patches The patches to add.
      */
-    fun addPatches(vararg patches: Patch) {
+    fun addPatches(patches: Iterable<Patch>) {
         this.patches.addAll(patches)
     }
 
diff --git a/src/main/kotlin/app/revanced/patcher/signature/MethodSignature.kt b/src/main/kotlin/app/revanced/patcher/signature/MethodSignature.kt
index 8fa7302..4c560d6 100644
--- a/src/main/kotlin/app/revanced/patcher/signature/MethodSignature.kt
+++ b/src/main/kotlin/app/revanced/patcher/signature/MethodSignature.kt
@@ -15,6 +15,6 @@ data class MethodSignature(
     val name: String,
     val returnType: String?,
     val accessFlags: Int?,
-    val methodParameters: Array<String>?,
-    val opcodes: Array<Opcode>?
+    val methodParameters: Iterable<String>?,
+    val opcodes: Iterable<Opcode>?
 )
\ No newline at end of file
diff --git a/src/main/kotlin/app/revanced/patcher/signature/resolver/SignatureResolver.kt b/src/main/kotlin/app/revanced/patcher/signature/resolver/SignatureResolver.kt
index dd5e10f..7630a13 100644
--- a/src/main/kotlin/app/revanced/patcher/signature/resolver/SignatureResolver.kt
+++ b/src/main/kotlin/app/revanced/patcher/signature/resolver/SignatureResolver.kt
@@ -13,7 +13,7 @@ import org.jf.dexlib2.iface.instruction.Instruction
 // TODO: add logger back
 internal class SignatureResolver(
     private val classes: Set<ClassDef>,
-    private val methodSignatures: Array<MethodSignature>
+    private val methodSignatures: Iterable<MethodSignature>
 ) {
     fun resolve(): MethodMap {
         val methodMap = MethodMap()
@@ -84,8 +84,8 @@ internal class SignatureResolver(
             }
         }
 
-        private fun compareParameterTypes(signature: Array<String>, original: MutableList<out CharSequence>): Boolean {
-            return signature.size != original.size || !(signature.all { a -> original.any { it.startsWith(a) } })
+        private fun compareParameterTypes(signature: Iterable<String>, original: MutableList<out CharSequence>): Boolean {
+            return signature.count() != original.size || !(signature.all { a -> original.any { it.startsWith(a) } })
         }
     }
 }
@@ -93,13 +93,14 @@ internal class SignatureResolver(
 private operator fun ClassDef.component1() = this
 private operator fun ClassDef.component2() = this.methods
 
-private fun MutableIterable<Instruction>.scanFor(pattern: Array<Opcode>): PatternScanResult? {
+private fun MutableIterable<Instruction>.scanFor(pattern: Iterable<Opcode>): PatternScanResult? {
     val count = this.count()
+    val size = pattern.count()
     for (instructionIndex in 0 until count) {
         var patternIndex = 0
         while (instructionIndex + patternIndex < count) {
-            if (this.elementAt(instructionIndex + patternIndex).opcode != pattern[patternIndex]) break
-            if (++patternIndex < pattern.size) continue
+            if (this.elementAt(instructionIndex + patternIndex).opcode != pattern.elementAt(patternIndex)) break
+            if (++patternIndex < size) continue
 
             return PatternScanResult(instructionIndex, instructionIndex + patternIndex)
         }
diff --git a/src/test/kotlin/app/revanced/patcher/PatcherTest.kt b/src/test/kotlin/app/revanced/patcher/PatcherTest.kt
index c2b3cb9..fbf83b0 100644
--- a/src/test/kotlin/app/revanced/patcher/PatcherTest.kt
+++ b/src/test/kotlin/app/revanced/patcher/PatcherTest.kt
@@ -23,13 +23,13 @@ import kotlin.test.assertTrue
 
 internal class PatcherTest {
     companion object {
-        val testSignatures: Array<MethodSignature> = arrayOf(
+        val testSignatures = listOf(
             MethodSignature(
                 "main-method",
                 "V",
                 AccessFlags.PUBLIC or AccessFlags.STATIC,
-                arrayOf("[L"),
-                arrayOf(
+                listOf("[L"),
+                listOf(
                     Opcode.CONST_STRING,
                     Opcode.INVOKE_VIRTUAL,
                     Opcode.RETURN_VOID
@@ -45,7 +45,7 @@ internal class PatcherTest {
             testSignatures
         )
 
-        patcher.addPatches(
+        patcher.addPatches(listOf(
             object : Patch("TestPatch") {
                 override fun execute(cache: Cache): PatchResult {
                     // Get the result from the resolver cache
@@ -146,7 +146,7 @@ internal class PatcherTest {
                     return PatchResultSuccess()
                 }
             }
-        )
+        ))
 
         // Apply all patches loaded in the patcher
         val patchResult = patcher.applyPatches()