Update 4_apis.md

Some APIs have been slightly changed and docs have been added.

BREAKING CHANGE: Various APIs have been changed.

.github/workflows/build_pull_request.yml

@@ -12,12 +12,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
       - name: Cache Gradle
-        uses: burrunan/gradle-cache-action@v3
+        uses: burrunan/gradle-cache-action@v1
 
       - name: Build
         env:

.github/workflows/open_pull_request.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
 
       - name: Open pull request
         uses: repo-sync/pull-request@v2

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
         with:
           # Make sure the release step uses its own credentials:
           # https://github.com/cycjimmy/semantic-release-action#private-packages
@@ -24,7 +24,7 @@ jobs:
           fetch-depth: 0
 
       - name: Cache Gradle
-        uses: burrunan/gradle-cache-action@v3
+        uses: burrunan/gradle-cache-action@v1
 
       - name: Build
         env:

CHANGELOG.md

@@ -1,108 +1,3 @@
-# [21.1.0-dev.4](https://github.com/ReVanced/revanced-patcher/compare/v21.1.0-dev.3...v21.1.0-dev.4) (2025-07-18)
-
-
-### Bug Fixes
-
-* Correctly save XML files in UTF-8 by using a bufferedWriter ([#356](https://github.com/ReVanced/revanced-patcher/issues/356)) ([33fadcb](https://github.com/ReVanced/revanced-patcher/commit/33fadcbd0c7076b848bdca4d62a9c684d5781232))
-
-# [21.1.0-dev.3](https://github.com/ReVanced/revanced-patcher/compare/v21.1.0-dev.2...v21.1.0-dev.3) (2025-06-20)
-
-
-### Bug Fixes
-
-* Encode XML files as UTF-8 to fix compilation of resources ([#339](https://github.com/ReVanced/revanced-patcher/issues/339)) ([4f2ef3c](https://github.com/ReVanced/revanced-patcher/commit/4f2ef3c47cea76a26c464cfb45d4bb57fe7198b5))
-
-# [21.1.0-dev.2](https://github.com/ReVanced/revanced-patcher/compare/v21.1.0-dev.1...v21.1.0-dev.2) (2025-06-20)
-
-
-### Bug Fixes
-
-* Add back missing log by naming logger correctly ([#332](https://github.com/ReVanced/revanced-patcher/issues/332)) ([e4e66b0](https://github.com/ReVanced/revanced-patcher/commit/e4e66b0d8bb0986b79fb150b9c15da35b8e11561))
-* Support UTF-8 chars when compiling instructions in Smali in non UTF-8 environments ([#331](https://github.com/ReVanced/revanced-patcher/issues/331)) ([bb8771b](https://github.com/ReVanced/revanced-patcher/commit/bb8771bb8b8ab1724d957e56f4de88c02684d87b))
-
-
-### Features
-
-* Use option name as key for simplicity and consistency ([754b02e](https://github.com/ReVanced/revanced-patcher/commit/754b02e4ca66ec10764d5205c6643f2d86d0c6a2))
-
-
-### Performance Improvements
-
-* Use a buffered writer to reduce IO overhead ([#347](https://github.com/ReVanced/revanced-patcher/issues/347)) ([99f4318](https://github.com/ReVanced/revanced-patcher/commit/99f431897eb9e607987fd5d09b879d7eda442f3e))
-
-# [21.1.0-dev.1](https://github.com/ReVanced/revanced-patcher/compare/v21.0.0...v21.1.0-dev.1) (2024-12-07)
-
-
-### Features
-
-* Add identity hash code to unnamed patches ([88a3252](https://github.com/ReVanced/revanced-patcher/commit/88a325257494939a79fb30dd51d60c5c52546755))
-
-# [21.0.0](https://github.com/ReVanced/revanced-patcher/compare/v20.0.2...v21.0.0) (2024-11-05)
-
-
-### Bug Fixes
-
-* Match fingerprint before delegating the match property ([5d996de](https://github.com/ReVanced/revanced-patcher/commit/5d996def4d3de4e2bfc34562e5a6c7d89a8cddf0))
-* Merge extension only when patch executes ([#315](https://github.com/ReVanced/revanced-patcher/issues/315)) ([aa472eb](https://github.com/ReVanced/revanced-patcher/commit/aa472eb9857145b53b49f843406a9764fbb7e5ce))
-
-
-### Features
-
-* Improve Fingerprint API ([#316](https://github.com/ReVanced/revanced-patcher/issues/316)) ([0abf1c6](https://github.com/ReVanced/revanced-patcher/commit/0abf1c6c0279708fdef5cb66b141d07d17682693))
-* Improve various APIs  ([#317](https://github.com/ReVanced/revanced-patcher/issues/317)) ([b824978](https://github.com/ReVanced/revanced-patcher/commit/b8249789df8b90129f7b7ad0e523a8d0ceaab848))
-* Move fingerprint match members to fingerprint for ease of access by using context receivers ([0746c22](https://github.com/ReVanced/revanced-patcher/commit/0746c22743a9561bae2284d234b151f2f8511ca5))
-
-
-### Performance Improvements
-
-* Use smallest lookup map for strings ([1358d3f](https://github.com/ReVanced/revanced-patcher/commit/1358d3fa10cb8ba011b6b89cfe3684ecf9849d2f))
-
-
-### BREAKING CHANGES
-
-* Various APIs have been changed.
-* Many APIs have been changed.
-
-# [21.0.0-dev.4](https://github.com/ReVanced/revanced-patcher/compare/v21.0.0-dev.3...v21.0.0-dev.4) (2024-11-05)
-
-
-### Performance Improvements
-
-* Use smallest lookup map for strings ([1358d3f](https://github.com/ReVanced/revanced-patcher/commit/1358d3fa10cb8ba011b6b89cfe3684ecf9849d2f))
-
-# [21.0.0-dev.3](https://github.com/ReVanced/revanced-patcher/compare/v21.0.0-dev.2...v21.0.0-dev.3) (2024-11-05)
-
-
-### Features
-
-* Move fingerprint match members to fingerprint for ease of access by using context receivers ([0746c22](https://github.com/ReVanced/revanced-patcher/commit/0746c22743a9561bae2284d234b151f2f8511ca5))
-
-# [21.0.0-dev.2](https://github.com/ReVanced/revanced-patcher/compare/v21.0.0-dev.1...v21.0.0-dev.2) (2024-11-01)
-
-
-### Bug Fixes
-
-* Match fingerprint before delegating the match property ([5d996de](https://github.com/ReVanced/revanced-patcher/commit/5d996def4d3de4e2bfc34562e5a6c7d89a8cddf0))
-
-# [21.0.0-dev.1](https://github.com/ReVanced/revanced-patcher/compare/v20.0.2...v21.0.0-dev.1) (2024-10-27)
-
-
-### Bug Fixes
-
-* Merge extension only when patch executes ([#315](https://github.com/ReVanced/revanced-patcher/issues/315)) ([aa472eb](https://github.com/ReVanced/revanced-patcher/commit/aa472eb9857145b53b49f843406a9764fbb7e5ce))
-
-
-### Features
-
-* Improve Fingerprint API ([#316](https://github.com/ReVanced/revanced-patcher/issues/316)) ([0abf1c6](https://github.com/ReVanced/revanced-patcher/commit/0abf1c6c0279708fdef5cb66b141d07d17682693))
-* Improve various APIs  ([#317](https://github.com/ReVanced/revanced-patcher/issues/317)) ([b824978](https://github.com/ReVanced/revanced-patcher/commit/b8249789df8b90129f7b7ad0e523a8d0ceaab848))
-
-
-### BREAKING CHANGES
-
-* Various APIs have been changed.
-* Many APIs have been changed.
-
 ## [20.0.2](https://github.com/ReVanced/revanced-patcher/compare/v20.0.1...v20.0.2) (2024-10-17)
 
 

api/revanced-patcher.api

@@ -1,22 +1,4 @@
 public final class app/revanced/patcher/Fingerprint {
-	public final fun getClassDef (Lapp/revanced/patcher/patch/BytecodePatchContext;)Lapp/revanced/patcher/util/proxy/mutableTypes/MutableClass;
-	public final fun getClassDefOrNull (Lapp/revanced/patcher/patch/BytecodePatchContext;)Lapp/revanced/patcher/util/proxy/mutableTypes/MutableClass;
-	public final fun getMethod (Lapp/revanced/patcher/patch/BytecodePatchContext;)Lapp/revanced/patcher/util/proxy/mutableTypes/MutableMethod;
-	public final fun getMethodOrNull (Lapp/revanced/patcher/patch/BytecodePatchContext;)Lapp/revanced/patcher/util/proxy/mutableTypes/MutableMethod;
-	public final fun getOriginalClassDef (Lapp/revanced/patcher/patch/BytecodePatchContext;)Lcom/android/tools/smali/dexlib2/iface/ClassDef;
-	public final fun getOriginalClassDefOrNull (Lapp/revanced/patcher/patch/BytecodePatchContext;)Lcom/android/tools/smali/dexlib2/iface/ClassDef;
-	public final fun getOriginalMethod (Lapp/revanced/patcher/patch/BytecodePatchContext;)Lcom/android/tools/smali/dexlib2/iface/Method;
-	public final fun getOriginalMethodOrNull (Lapp/revanced/patcher/patch/BytecodePatchContext;)Lcom/android/tools/smali/dexlib2/iface/Method;
-	public final fun getPatternMatch (Lapp/revanced/patcher/patch/BytecodePatchContext;)Lapp/revanced/patcher/Match$PatternMatch;
-	public final fun getPatternMatchOrNull (Lapp/revanced/patcher/patch/BytecodePatchContext;)Lapp/revanced/patcher/Match$PatternMatch;
-	public final fun getStringMatches (Lapp/revanced/patcher/patch/BytecodePatchContext;)Ljava/util/List;
-	public final fun getStringMatchesOrNull (Lapp/revanced/patcher/patch/BytecodePatchContext;)Ljava/util/List;
-	public final fun match (Lapp/revanced/patcher/patch/BytecodePatchContext;Lcom/android/tools/smali/dexlib2/iface/ClassDef;)Lapp/revanced/patcher/Match;
-	public final fun match (Lapp/revanced/patcher/patch/BytecodePatchContext;Lcom/android/tools/smali/dexlib2/iface/Method;)Lapp/revanced/patcher/Match;
-	public final fun match (Lapp/revanced/patcher/patch/BytecodePatchContext;Lcom/android/tools/smali/dexlib2/iface/Method;Lcom/android/tools/smali/dexlib2/iface/ClassDef;)Lapp/revanced/patcher/Match;
-	public final fun matchOrNull (Lapp/revanced/patcher/patch/BytecodePatchContext;Lcom/android/tools/smali/dexlib2/iface/ClassDef;)Lapp/revanced/patcher/Match;
-	public final fun matchOrNull (Lapp/revanced/patcher/patch/BytecodePatchContext;Lcom/android/tools/smali/dexlib2/iface/Method;)Lapp/revanced/patcher/Match;
-	public final fun matchOrNull (Lapp/revanced/patcher/patch/BytecodePatchContext;Lcom/android/tools/smali/dexlib2/iface/Method;Lcom/android/tools/smali/dexlib2/iface/ClassDef;)Lapp/revanced/patcher/Match;
 }
 
 public final class app/revanced/patcher/FingerprintBuilder {
@@ -49,11 +31,13 @@ public final class app/revanced/patcher/Match {
 }
 
 public final class app/revanced/patcher/Match$PatternMatch {
+	public fun <init> (II)V
 	public final fun getEndIndex ()I
 	public final fun getStartIndex ()I
 }
 
 public final class app/revanced/patcher/Match$StringMatch {
+	public fun <init> (Ljava/lang/String;I)V
 	public final fun getIndex ()I
 	public final fun getString ()Ljava/lang/String;
 }
@@ -73,8 +57,6 @@ public final class app/revanced/patcher/Patcher : java/io/Closeable {
 }
 
 public final class app/revanced/patcher/PatcherConfig {
-	public fun <init> (Ljava/io/File;Ljava/io/File;Ljava/io/File;Ljava/lang/String;)V
-	public synthetic fun <init> (Ljava/io/File;Ljava/io/File;Ljava/io/File;Ljava/lang/String;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
 	public fun <init> (Ljava/io/File;Ljava/io/File;Ljava/lang/String;Ljava/lang/String;)V
 	public synthetic fun <init> (Ljava/io/File;Ljava/io/File;Ljava/lang/String;Ljava/lang/String;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
 }
@@ -164,6 +146,10 @@ public final class app/revanced/patcher/patch/BytecodePatchContext : app/revance
 	public synthetic fun get ()Ljava/lang/Object;
 	public fun get ()Ljava/util/Set;
 	public final fun getClasses ()Lapp/revanced/patcher/util/ProxyClassList;
+	public final fun getMatch (Lapp/revanced/patcher/Fingerprint;)Lapp/revanced/patcher/Match;
+	public final fun getValue (Lapp/revanced/patcher/Fingerprint;Ljava/lang/Void;Lkotlin/reflect/KProperty;)Lapp/revanced/patcher/Match;
+	public final fun match (Lapp/revanced/patcher/Fingerprint;Lcom/android/tools/smali/dexlib2/iface/ClassDef;)Lapp/revanced/patcher/Match;
+	public final fun match (Lapp/revanced/patcher/Fingerprint;Lcom/android/tools/smali/dexlib2/iface/Method;)Lapp/revanced/patcher/Match;
 	public final fun navigate (Lcom/android/tools/smali/dexlib2/iface/reference/MethodReference;)Lapp/revanced/patcher/util/MethodNavigator;
 	public final fun proxy (Lcom/android/tools/smali/dexlib2/iface/ClassDef;)Lapp/revanced/patcher/util/proxy/ClassProxy;
 }
@@ -171,12 +157,9 @@ public final class app/revanced/patcher/patch/BytecodePatchContext : app/revance
 public final class app/revanced/patcher/patch/Option {
 	public fun <init> (Ljava/lang/String;Ljava/lang/Object;Ljava/util/Map;Ljava/lang/String;Ljava/lang/String;ZLkotlin/reflect/KType;Lkotlin/jvm/functions/Function2;)V
 	public synthetic fun <init> (Ljava/lang/String;Ljava/lang/Object;Ljava/util/Map;Ljava/lang/String;Ljava/lang/String;ZLkotlin/reflect/KType;Lkotlin/jvm/functions/Function2;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
-	public fun <init> (Ljava/lang/String;Ljava/lang/Object;Ljava/util/Map;Ljava/lang/String;ZLkotlin/reflect/KType;Lkotlin/jvm/functions/Function2;)V
-	public synthetic fun <init> (Ljava/lang/String;Ljava/lang/Object;Ljava/util/Map;Ljava/lang/String;ZLkotlin/reflect/KType;Lkotlin/jvm/functions/Function2;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
 	public final fun getDefault ()Ljava/lang/Object;
 	public final fun getDescription ()Ljava/lang/String;
 	public final fun getKey ()Ljava/lang/String;
-	public final fun getName ()Ljava/lang/String;
 	public final fun getRequired ()Z
 	public final fun getTitle ()Ljava/lang/String;
 	public final fun getType ()Lkotlin/reflect/KType;
@@ -485,12 +468,12 @@ public final class app/revanced/patcher/util/Document : java/io/Closeable, org/w
 }
 
 public final class app/revanced/patcher/util/MethodNavigator {
+	public final fun at (ILkotlin/jvm/functions/Function1;)Lapp/revanced/patcher/util/MethodNavigator;
+	public final fun at ([I)Lapp/revanced/patcher/util/MethodNavigator;
+	public static synthetic fun at$default (Lapp/revanced/patcher/util/MethodNavigator;ILkotlin/jvm/functions/Function1;ILjava/lang/Object;)Lapp/revanced/patcher/util/MethodNavigator;
 	public final fun getValue (Ljava/lang/Void;Lkotlin/reflect/KProperty;)Lapp/revanced/patcher/util/proxy/mutableTypes/MutableMethod;
 	public final fun original ()Lcom/android/tools/smali/dexlib2/iface/Method;
 	public final fun stop ()Lapp/revanced/patcher/util/proxy/mutableTypes/MutableMethod;
-	public final fun to (ILkotlin/jvm/functions/Function1;)Lapp/revanced/patcher/util/MethodNavigator;
-	public final fun to ([I)Lapp/revanced/patcher/util/MethodNavigator;
-	public static synthetic fun to$default (Lapp/revanced/patcher/util/MethodNavigator;ILkotlin/jvm/functions/Function1;ILjava/lang/Object;)Lapp/revanced/patcher/util/MethodNavigator;
 }
 
 public final class app/revanced/patcher/util/ProxyClassList : java/util/List, kotlin/jvm/internal/markers/KMutableList {

build.gradle.kts

@@ -56,8 +56,6 @@ dependencies {
 kotlin {
     compilerOptions {
         jvmTarget.set(JvmTarget.JVM_11)
-
-        freeCompilerArgs = listOf("-Xcontext-receivers")
     }
 }
 

docs/1_patcher_intro.md

@@ -89,9 +89,9 @@ val patcherResult = Patcher(PatcherConfig(apkFile = File("some.apk"))).use { pat
     runBlocking {
         patcher().collect { patchResult ->
             if (patchResult.exception != null)
-                logger.info { "\"${patchResult.patch}\" failed:\n${patchResult.exception}" }
+                logger.info("\"${patchResult.patch}\" failed:\n${patchResult.exception}")
             else
-                logger.info { "\"${patchResult.patch}\" succeeded" }
+                logger.info("\"${patchResult.patch}\" succeeded")
         }
     }
 

docs/2_2_1_fingerprinting.md

@@ -117,19 +117,15 @@ With this information, the original code can be reconstructed:
 ```java
 package com.some.app.ads;
 
-<accessFlags>
-
-class AdsLoader {
-    public final boolean <methodName>(boolean <parameter>)
-
-    {
+<accessFlags> class AdsLoader {
+    public final boolean <methodName>(boolean <parameter>) {
         // ...
 
         var userStatus = "pro";
 
         // ...
 
-        return <returnValue >;
+        return <returnValue>;
     }
 }
 ```
@@ -138,14 +134,13 @@ Using that fingerprint, this method can be matched uniquely from all other metho
 
 > [!TIP]
 > A fingerprint should contain information about a method likely to remain the same across updates.
-> A method's name is not included in the fingerprint because it will likely change with each update in an obfuscated
-> app.
-> In contrast, the return type, access flags, parameters, patterns of opcodes, and strings are likely to remain the
-> same.
+> A method's name is not included in the fingerprint because it will likely change with each update in an obfuscated app.
+> In contrast, the return type, access flags, parameters, patterns of opcodes, and strings are likely to remain the same.
 
 ## 🔨 How to use fingerprints
 
-After declaring a fingerprint, it can be used in a patch to find the method it matches to:
+A fingerprint is matched to a method,
+once the `match` property of the fingerprint is accessed in a patch's `execute` scope:
 
 ```kt
 val fingerprint = fingerprint {
@@ -154,34 +149,52 @@ val fingerprint = fingerprint {
 
 val patch = bytecodePatch {
     execute {
-        fingerprint.method
+        val match = fingerprint.match!!
     }
 }
 ```
 
-The fingerprint won't be matched again, if it has already been matched once, for performance reasons.
-This makes it useful, to share fingerprints between multiple patches,
-and let the first executing patch match the fingerprint:
+The fingerprint won't be matched again, if it has already been matched once.
+This makes it useful, to share fingerprints between multiple patches, and let the first patch match the fingerprint:
 
 ```kt
 // Either of these two patches will match the fingerprint first and the other patch can reuse the match:
 val mainActivityPatch1 = bytecodePatch {
     execute {
-        mainActivityOnCreateFingerprint.method
+        val match = mainActivityOnCreateFingerprint.match!!
     }
 }
 
 val mainActivityPatch2 = bytecodePatch {
     execute {
-        mainActivityOnCreateFingerprint.method
+        val match = mainActivityOnCreateFingerprint.match!!
+    }
+}
+```
+
+A fingerprint match can also be delegated to a variable for convenience without the need to check for `null`:
+```kt
+val fingerprint = fingerprint {
+    // ...
+}
+
+val patch = bytecodePatch {
+    execute {
+        // Alternative to fingerprint.match ?: throw PatchException("No match found")
+        val match by fingerprint.match
+
+        try {
+            match.method
+        } catch (e: PatchException) {
+            // Handle the exception for example.
+        }
     }
 }
 ```
 
 > [!WARNING]
-> If the fingerprint can not be matched to any method,
-> accessing certain properties of the fingerprint will raise an exception.
-> Instead, the `orNull` properties can be used to return `null` if no match is found.
+> If the fingerprint can not be matched to any method, the match of a fingerprint is `null`. If such a match is delegated
+> to a variable, accessing it will raise an exception.
 
 > [!TIP]
 > If a fingerprint has an opcode pattern, you can use the `fuzzyPatternScanThreshhold` parameter of the `opcode`
@@ -198,43 +211,42 @@ val mainActivityPatch2 = bytecodePatch {
 >    )
 >}
 > ```
+> 
+The match of a fingerprint contains references to the original method and class definition of the method:
 
-The following properties can be accessed in a fingerprint:
+```kt
+class Match(
+    val originalMethod: Method,
+    val originalClassDef: ClassDef,
+    val patternMatch: Match.PatternMatch?,
+    val stringMatches: List<Match.StringMatch>?,
+    // ...
+) {
+    val classDef by lazy { /* ... */ }
+    val method by lazy { /* ... */ }
 
-- `originalClassDef`: The original class definition the fingerprint matches to.
-- `originalClassDefOrNull`: The original class definition the fingerprint matches to.
-- `originalMethod`: The original method the fingerprint matches to.
-- `originalMethodOrNull`: The original method the fingerprint matches to.
-- `classDef`: The class the fingerprint matches to.
-- `classDefOrNull`: The class the fingerprint matches to.
-- `method`: The method the fingerprint matches to. If no match is found, an exception is raised.
-- `methodOrNull`: The method the fingerprint matches to.
+    // ...
+}
+```
 
-The difference between the `original` and non-`original` properties is that the `original` properties return the
-original class or method definition, while the non-`original` properties return a mutable copy of the class or method.
-The mutable copies can be modified. They are lazy properties, so they are only computed
-and only then will effectively replace the `original` method or class definition when accessed.
-
-> [!TIP]
-> If only read-only access to the class or method is needed,
-> the `originalClassDef` and `originalMethod` properties should be used,
-> to avoid making a mutable copy of the class or method.
+The `classDef` and `method` properties can be used to make changes to the class or method.
+They are lazy properties, so they are only computed 
+and will effectively replace the original method or class definition when accessed.
 
 ## 🏹 Manually matching fingerprints
 
-By default, a fingerprint is matched automatically against all classes
-when one of the fingerprint's properties is accessed.
+By default, a fingerprint is matched automatically against all classes when the `match` property is accessed.
 
 Instead, the fingerprint can be matched manually using various overloads of a fingerprint's `match` function:
 
 - In a **list of classes**, if the fingerprint can match in a known subset of classes
 
   If you have a known list of classes you know the fingerprint can match in,
-  you can match the fingerprint on the list of classes:
+you can match the fingerprint on the list of classes:
 
   ```kt
   execute {
-    val match = showAdsFingerprint(classes)
+    val match = showAdsFingerprint.match(classes) ?: throw PatchException("No match found")
   }
   ```
 
@@ -246,24 +258,14 @@ Instead, the fingerprint can be matched manually using various overloads of a fi
   execute {
     val adsLoaderClass = classes.single { it.name == "Lcom/some/app/ads/Loader;" }
 
-    val match = showAdsFingerprint.match(adsLoaderClass)
-  }
-  ```
-
-  Another common usecase is to use a fingerprint to reduce the search space of a method to a single class.
-
-  ```kt
-  execute {
-    // Match showAdsFingerprint in the class of the ads loader found by adsLoaderClassFingerprint.
-    val match = showAdsFingerprint.match(adsLoaderClassFingerprint.classDef)
+    val match = showAdsFingerprint.match(context, adsLoaderClass) ?: throw PatchException("No match found")
   }
   ```
 
 - Match a **single method**, to extract certain information about it
 
   The match of a fingerprint contains useful information about the method,
-  such as the start and end index of an opcode pattern or the indices of the instructions with certain string
-  references.
+  such as the start and end index of an opcode pattern or the indices of the instructions with certain string references.
   A fingerprint can be leveraged to extract such information from a method instead of manually figuring it out:
 
   ```kt
@@ -272,19 +274,14 @@ Instead, the fingerprint can be matched manually using various overloads of a fi
       strings("free", "trial")
     }
 
-    currentPlanFingerprint.match(adsFingerprint.method).let { match ->
+    currentPlanFingerprint.match(adsFingerprintMatch.method)?.let { match ->
       match.stringMatches.forEach { match ->
         println("The index of the string '${match.string}' is ${match.index}")
       }
-    }
+    } ?: throw PatchException("No match found")
   }
   ```
 
-> [!WARNING]
-> If the fingerprint can not be matched to any method, calling `match` will raise an
-> exception.
-> Instead, the `orNull` overloads can be used to return `null` if no match is found.
-
 > [!TIP]
 > To see real-world examples of fingerprints,
 > check out the repository for [ReVanced Patches](https://github.com/revanced/revanced-patches).

docs/2_2_patch_anatomy.md

@@ -73,26 +73,26 @@ package app.revanced.patches.ads
 val disableAdsPatch = bytecodePatch(
     name = "Disable ads",
     description = "Disable ads in the app.",
-) {
+) { 
     compatibleWith("com.some.app"("1.0.0"))
-
+    
     // Patches can depend on other patches, executing them first.
     dependsOn(disableAdsResourcePatch)
 
     // Merge precompiled DEX files into the patched app, before the patch is executed.
     extendWith("disable-ads.rve")
-
+    
     // Business logic of the patch to disable ads in the app.
     execute {
         // Fingerprint to find the method to patch.
-        val showAdsFingerprint = fingerprint {
-            // More about fingerprints on the next page of the documentation.
+        val showAdsMatch by showAdsFingerprint {
+          // More about fingerprints on the next page of the documentation.
         }
-
+      
         // In the method that shows ads,
         // call DisableAdsPatch.shouldDisableAds() from the extension (precompiled DEX file)
         // to enable or disable ads.
-        showAdsFingerprint.method.addInstructions(
+        showAdsMatch.method.addInstructions(
             0,
             """
                 invoke-static {}, LDisableAdsPatch;->shouldDisableAds()Z
@@ -122,11 +122,11 @@ To define an option, use the available `option` functions:
 ```kt
 val patch = bytecodePatch(name = "Patch") {
     // Add an inbuilt option and delegate it to a property.
-    val value by stringOption(name = "Inbuilt option")
+    val value by stringOption(key = "option")
 
     // Add an option with a custom type and delegate it to a property.
-    val string by option<String>(name = "String option")
-
+    val string by option<String>(key = "string")
+    
     execute {
         println(value)
         println(string)
@@ -139,7 +139,7 @@ Options of a patch can be set after loading the patches with `PatchLoader` by ob
 ```kt
 loadPatchesJar(patches).apply {
     // Type is checked at runtime.
-    first { it.name == "Patch" }.options["Option"] = "Value"
+    first { it.name == "Patch" }.options["option"] = "Value"
 }
 ```
 
@@ -152,7 +152,7 @@ option.type // The KType of the option. Captures the full type information of th
 Options can be declared outside a patch and added to a patch manually:
 
 ```kt
-val option = stringOption(name = "Option")
+val option = stringOption(key = "option")
 
 bytecodePatch(name = "Patch") {
     val value by option()
@@ -183,18 +183,18 @@ and use it in a patch:
 ```kt
 val patch = bytecodePatch(name = "Complex patch") {
     extendWith("complex-patch.rve")
-
-    execute {
-        fingerprint.method.addInstructions(0, "invoke-static { }, LComplexPatch;->doSomething()V")
+  
+    execute { 
+        fingerprint.match!!.mutableMethod.addInstructions(0, "invoke-static { }, LComplexPatch;->doSomething()V")
     }
 }
 ```
 
-ReVanced Patcher merges the classes from the extension into `context.classes` before executing the patch.
+ReVanced Patcher merges the classes from the extension into `context.classes` before executing the patch. 
 When the patch is executed, it can reference the classes and methods from the extension.
 
 > [!NOTE]
->
+> 
 > The [ReVanced Patches template](https://github.com/ReVanced/revanced-patches-template) repository
 > is a template project to create patches and extensions.
 
@@ -211,9 +211,9 @@ A simple real-world example would be a patch that opens a resource file of the a
 Other patches that depend on this patch can write to the file, and the finalization block can close the file.
 
 ```kt
-val patch = bytecodePatch(name = "Patch") {
+val patch = bytecodePatch(name = "Patch") { 
     dependsOn(
-        bytecodePatch(name = "Dependency") {
+        bytecodePatch(name = "Dependency") { 
             execute {
                 print("1")
             }
@@ -249,10 +249,10 @@ The same order is followed for multiple patches depending on the patch.
 - A patch can declare compatibility with specific packages and versions,
   but patches can still be executed on any package or version.
   It is recommended that compatibility is specified to present known compatible packages and versions.
-    - If `compatibleWith` is not used, the patch is treated as compatible with any package
+   - If `compatibleWith` is not used, the patch is treated as compatible with any package
 - If a package is specified with no versions, the patch is compatible with any version of the package
 - If an empty array of versions is specified, the patch is not compatible with any version of the package.
-  This is useful for declaring incompatibility with a specific package.
+    This is useful for declaring incompatibility with a specific package.
 - A patch can raise a `PatchException` at any time of execution to indicate that the patch failed to execute.
 
 ## ⏭️ What's next

docs/4_apis.md

@@ -46,17 +46,17 @@ The `navigate(Method)` function allows you to navigate method calls recursively
 ```kt
 execute {
     // Sequentially navigate to the instructions at index 1 within 'someMethod'.
-    val method = navigate(someMethod).to(1).original() // original() returns the original immutable method.
+    val method = navigate(someMethod).at(1).original() // original() returns the original immutable method.
     
     // Further navigate to the second occurrence where the instruction's opcode is 'INVOKEVIRTUAL'.
     // stop() returns the mutable copy of the method.
-    val method = navigate(someMethod).to(2) { instruction -> instruction.opcode == Opcode.INVOKEVIRTUAL }.stop()
+    val method = navigate(someMethod).at(2) { instruction -> instruction.opcode == Opcode.INVOKEVIRTUAL }.stop()
     
     // Alternatively, to stop(), you can delegate the method to a variable.
-    val method by navigate(someMethod).to(1)
+    val method by navigate(someMethod).at(1)
     
     // You can chain multiple calls to at() to navigate deeper into the method.
-    val method by navigate(someMethod).to(1).to(2, 3, 4).to(5)
+    val method by navigate(someMethod).at(1).at(2, 3, 4).at(5)
 }
 ```
 
@@ -85,7 +85,7 @@ execute {
 The `document` function is used to read and write DOM files.
 
 ```kt
-execute {
+execute { 
     document("res/values/strings.xml").use { document ->
         val element = doc.createElement("string").apply {
             textContent = "Hello, World!"
@@ -112,6 +112,5 @@ ReVanced Patcher is a powerful library to patch Android applications, offering a
 that outlive app updates. Patches make up ReVanced; without you, the community of patch developers,
 ReVanced would not be what it is today. We hope that this documentation has been helpful to you
 and are excited to see what you will create with ReVanced Patcher. If you have any questions or need help,
-talk to us on one of our platforms linked on [revanced.app](https://revanced.app) or open an issue in case of a bug or
-feature request,  
+talk to us on one of our platforms linked on [revanced.app](https://revanced.app) or open an issue in case of a bug or feature request,  
 ReVanced

gradle.properties

@@ -1,3 +1,3 @@
 org.gradle.parallel = true
 org.gradle.caching = true
-version = 21.1.0-dev.4
+version = 20.0.2

gradle/libs.versions.toml

@@ -1,14 +1,14 @@
 [versions]
 android = "4.1.1.4"
-apktool-lib = "2.10.1.1"
-binary-compatibility-validator = "0.18.1"
-kotlin = "2.0.20"
-kotlinx-coroutines-core = "1.10.2"
-mockk = "1.14.5"
+apktool-lib = "2.9.3"
+binary-compatibility-validator = "0.15.1"
+kotlin = "2.0.0"
+kotlinx-coroutines-core = "1.8.1"
+mockk = "1.13.10"
 multidexlib2 = "3.0.3.r3"
 # Tracking https://github.com/google/smali/issues/64.
 #noinspection GradleDependency
-smali = "3.0.9"
+smali = "3.0.5"
 xpp3 = "1.1.4c"
 
 [libraries]

package.json

@@ -4,6 +4,6 @@
     "@semantic-release/changelog": "^6.0.3",
     "@semantic-release/git": "^10.0.1",
     "gradle-semantic-release-plugin": "^1.10.1",
-    "semantic-release": "^24.2.7"
+    "semantic-release": "^24.1.2"
   }
 }

src/main/kotlin/app/revanced/patcher/PatcherConfig.kt

@@ -16,28 +16,9 @@ import java.util.logging.Logger
 class PatcherConfig(
     internal val apkFile: File,
     private val temporaryFilesPath: File = File("revanced-temporary-files"),
-    aaptBinaryPath: File? = null,
+    aaptBinaryPath: String? = null,
     frameworkFileDirectory: String? = null,
 ) {
-    /**
-     * The configuration for the patcher.
-     *
-     * @param apkFile The apk file to patch.
-     * @param temporaryFilesPath A path to a folder to store temporary files in.
-     * @param aaptBinaryPath A path to a custom aapt binary.
-     * @param frameworkFileDirectory A path to the directory to cache the framework file in.
-     */
-    @Deprecated(
-        "Use the constructor with a File for aaptBinaryPath instead.",
-        ReplaceWith("PatcherConfig(apkFile, temporaryFilesPath, aaptBinaryPath?.let { File(it) }, frameworkFileDirectory)"),
-    )
-    constructor(
-        apkFile: File,
-        temporaryFilesPath: File = File("revanced-temporary-files"),
-        aaptBinaryPath: String? = null,
-        frameworkFileDirectory: String? = null,
-    ) : this(apkFile, temporaryFilesPath, aaptBinaryPath?.let { File(it) }, frameworkFileDirectory)
-
     private val logger = Logger.getLogger(PatcherConfig::class.java.name)
 
     /**
@@ -52,7 +33,8 @@ class PatcherConfig(
      */
     internal val resourceConfig =
         Config.getDefaultConfig().apply {
-            aaptBinary = aaptBinaryPath
+            useAapt2 = true
+            aaptPath = aaptBinaryPath ?: ""
             frameworkDirectory = frameworkFileDirectory
         }
 

src/main/kotlin/app/revanced/patcher/patch/BytecodePatchContext.kt

@@ -1,8 +1,6 @@
 package app.revanced.patcher.patch
 
-import app.revanced.patcher.InternalApi
-import app.revanced.patcher.PatcherConfig
-import app.revanced.patcher.PatcherResult
+import app.revanced.patcher.*
 import app.revanced.patcher.extensions.InstructionExtensions.instructionsOrNull
 import app.revanced.patcher.util.ClassMerger.merge
 import app.revanced.patcher.util.MethodNavigator
@@ -24,6 +22,7 @@ import java.io.Closeable
 import java.io.FileFilter
 import java.util.*
 import java.util.logging.Logger
+import kotlin.reflect.KProperty
 
 /**
  * A context for patches containing the current state of the bytecode.
@@ -34,7 +33,7 @@ import java.util.logging.Logger
 class BytecodePatchContext internal constructor(private val config: PatcherConfig) :
     PatchContext<Set<PatcherResult.PatchedDexFile>>,
     Closeable {
-    private val logger = Logger.getLogger(this::class.java.name)
+    private val logger = Logger.getLogger(BytecodePatchContext::class.java.name)
 
     /**
      * [Opcodes] of the supplied [PatcherConfig.apkFile].
@@ -54,6 +53,36 @@ class BytecodePatchContext internal constructor(private val config: PatcherConfi
         ).also { opcodes = it.opcodes }.classes.toMutableList(),
     )
 
+    /**
+     * The match for this [Fingerprint]. Null if unmatched.
+     */
+    val Fingerprint.match get() = match(this@BytecodePatchContext)
+
+    /**
+     * Match using a [ClassDef].
+     *
+     * @param classDef The class to match against.
+     * @return The [Match] if a match was found or if the fingerprint is already matched to a method, null otherwise.
+     */
+    fun Fingerprint.match(classDef: ClassDef) = match(this@BytecodePatchContext, classDef)
+
+    /**
+     * Match using a [Method].
+     * The class is retrieved from the method.
+     *
+     * @param method The method to match against.
+     * @return The [Match] if a match was found or if the fingerprint is already matched to a method, null otherwise.
+     */
+    fun Fingerprint.match(method: Method) = match(this@BytecodePatchContext, method)
+
+    /**
+     * Get the match for this [Fingerprint].
+     *
+     * @throws IllegalStateException If the [Fingerprint] has not been matched.
+     */
+    operator fun Fingerprint.getValue(nothing: Nothing?, property: KProperty<*>): Match = _match
+        ?: throw PatchException("No fingerprint match to delegate to \"${property.name}\".")
+
     /**
      * The lookup maps for methods and the class they are a member of from the [classes].
      */
@@ -69,7 +98,7 @@ class BytecodePatchContext internal constructor(private val config: PatcherConfi
         bytecodePatch.extensionInputStream?.get()?.use { extensionStream ->
             RawDexIO.readRawDexFile(extensionStream, 0, null).classes.forEach { classDef ->
                 val existingClass = lookupMaps.classesByType[classDef.type] ?: run {
-                    logger.fine { "Adding class \"$classDef\"" }
+                    logger.fine("Adding class \"$classDef\"")
 
                     classes += classDef
                     lookupMaps.classesByType[classDef.type] = classDef
@@ -77,7 +106,7 @@ class BytecodePatchContext internal constructor(private val config: PatcherConfi
                     return@forEach
                 }
 
-                logger.fine { "Class \"$classDef\" exists already. Adding missing methods and fields." }
+                logger.fine("Class \"$classDef\" exists already. Adding missing methods and fields.")
 
                 existingClass.merge(classDef, this@BytecodePatchContext).let { mergedClass ->
                     // If the class was merged, replace the original class with the merged class.
@@ -108,9 +137,9 @@ class BytecodePatchContext internal constructor(private val config: PatcherConfi
      *
      * @return A proxy for the class.
      */
-    fun proxy(classDef: ClassDef) = classes.proxyPool.find {
+    fun proxy(classDef: ClassDef) = this@BytecodePatchContext.classes.proxyPool.find {
         it.immutableClass.type == classDef.type
-    } ?: ClassProxy(classDef).also { classes.proxyPool.add(it) }
+    } ?: ClassProxy(classDef).also { this@BytecodePatchContext.classes.proxyPool.add(it) }
 
     /**
      * Navigate a method.
@@ -119,7 +148,7 @@ class BytecodePatchContext internal constructor(private val config: PatcherConfi
      *
      * @return A [MethodNavigator] for the method.
      */
-    fun navigate(method: MethodReference) = MethodNavigator(method)
+    fun navigate(method: MethodReference) = MethodNavigator(this@BytecodePatchContext, method)
 
     /**
      * Compile bytecode from the [BytecodePatchContext].
@@ -150,7 +179,7 @@ class BytecodePatchContext internal constructor(private val config: PatcherConfi
                         override fun getOpcodes() = this@BytecodePatchContext.opcodes
                     },
                     DexIO.DEFAULT_MAX_DEX_POOL_SIZE,
-                ) { _, entryName, _ -> logger.info { "Compiled $entryName" } }
+                ) { _, entryName, _ -> logger.info("Compiled $entryName") }
             }.listFiles(FileFilter { it.isFile })!!.map {
                 PatcherResult.PatchedDexFile(it.name, it.inputStream())
             }.toSet()
@@ -198,6 +227,28 @@ class BytecodePatchContext internal constructor(private val config: PatcherConfi
             }
         }
 
+        internal companion object {
+            /**
+             * Appends a string based on the parameter reference types of this method.
+             */
+            internal fun StringBuilder.appendParameters(parameters: Iterable<CharSequence>) {
+                // Maximum parameters to use in the signature key.
+                // Some apps have methods with an incredible number of parameters (over 100 parameters have been seen).
+                // To keep the signature map from becoming needlessly bloated,
+                // group together in the same map entry all methods with the same access/return and 5 or more parameters.
+                // The value of 5 was chosen based on local performance testing and is not set in stone.
+                val maxSignatureParameters = 5
+                // Must append a unique value before the parameters to distinguish this key includes the parameters.
+                // If this is not appended, then methods with no parameters
+                // will collide with different keys that specify access/return but omit the parameters.
+                append("p:")
+                parameters.forEachIndexed { index, parameter ->
+                    if (index >= maxSignatureParameters) return
+                    append(parameter.first())
+                }
+            }
+        }
+
         override fun close() {
             methodsByStrings.clear()
             classesByType.clear()

src/main/kotlin/app/revanced/patcher/patch/Option.kt

@@ -20,51 +20,16 @@ import kotlin.reflect.typeOf
  * @constructor Create a new [Option].
  */
 @Suppress("MemberVisibilityCanBePrivate", "unused")
-class Option<T>
-@PublishedApi
-@Deprecated("Use the constructor with the name instead of a key instead.")
-internal constructor(
-    @Deprecated("Use the name property instead.")
+class Option<T> @PublishedApi internal constructor(
     val key: String,
     val default: T? = null,
     val values: Map<String, T?>? = null,
-    @Deprecated("Use the name property instead.")
     val title: String? = null,
     val description: String? = null,
     val required: Boolean = false,
     val type: KType,
     val validator: Option<T>.(T?) -> Boolean = { true },
 ) {
-    /**
-     * The name.
-     */
-    val name = key
-
-    /**
-     * An option.
-     *
-     * @param T The value type of the option.
-     * @param name The name.
-     * @param default The default value.
-     * @param values Eligible option values mapped to a human-readable name.
-     * @param description A description.
-     * @param required Whether the option is required.
-     * @param type The type of the option value (to handle type erasure).
-     * @param validator The function to validate the option value.
-     *
-     * @constructor Create a new [Option].
-     */
-    @PublishedApi
-    internal constructor(
-        name: String,
-        default: T? = null,
-        values: Map<String, T?>? = null,
-        description: String? = null,
-        required: Boolean = false,
-        type: KType,
-        validator: Option<T>.(T?) -> Boolean = { true },
-    ) : this(name, default, values, name, description, required, type, validator)
-
     /**
      * The value of the [Option].
      */
@@ -144,7 +109,7 @@ internal constructor(
 class Options internal constructor(
     private val options: Map<String, Option<*>>,
 ) : Map<String, Option<*>> by options {
-    internal constructor(options: Set<Option<*>>) : this(options.associateBy { it.name })
+    internal constructor(options: Set<Option<*>>) : this(options.associateBy { it.key })
 
     /**
      * Set an option's value.
@@ -891,14 +856,14 @@ sealed class OptionException(errorMessage: String) : Exception(errorMessage, nul
      *
      * @param value The value that failed validation.
      */
-    class ValueValidationException(value: Any?, option: Option<*>) : OptionException("The option value \"$value\" failed validation for ${option.name}")
+    class ValueValidationException(value: Any?, option: Option<*>) : OptionException("The option value \"$value\" failed validation for ${option.key}")
 
     /**
      * An exception thrown when a value is required but null was passed.
      *
      * @param option The [Option] that requires a value.
      */
-    class ValueRequiredException(option: Option<*>) : OptionException("The option ${option.name} requires a value, but the value was null")
+    class ValueRequiredException(option: Option<*>) : OptionException("The option ${option.key} requires a value, but the value was null")
 
     /**
      * An exception thrown when a [Option] is not found.

src/main/kotlin/app/revanced/patcher/patch/Patch.kt

@@ -87,8 +87,7 @@ sealed class Patch<C : PatchContext<*>>(
         finalizeBlock?.invoke(context)
     }
 
-    override fun toString() = name ?: 
-        "Patch@${System.identityHashCode(this)}"
+    override fun toString() = name ?: "Patch"
 }
 
 internal fun Patch<*>.anyRecursively(
@@ -162,7 +161,7 @@ class BytecodePatch internal constructor(
 
     override fun finalize(context: PatcherContext) = finalize(context.bytecodeContext)
 
-    override fun toString() = name ?: "Bytecode${super.toString()}"
+    override fun toString() = name ?: "BytecodePatch"
 }
 
 /**
@@ -205,7 +204,7 @@ class RawResourcePatch internal constructor(
 
     override fun finalize(context: PatcherContext) = finalize(context.resourceContext)
 
-    override fun toString() = name ?: "RawResource${super.toString()}"
+    override fun toString() = name ?: "RawResourcePatch"
 }
 
 /**
@@ -248,7 +247,7 @@ class ResourcePatch internal constructor(
 
     override fun finalize(context: PatcherContext) = finalize(context.resourceContext)
 
-    override fun toString() = name ?: "Resource${super.toString()}"
+    override fun toString() = name ?: "ResourcePatch"
 }
 
 /**

src/main/kotlin/app/revanced/patcher/patch/ResourcePatchContext.kt

@@ -10,9 +10,9 @@ import brut.androlib.ApkDecoder
 import brut.androlib.apk.UsesFramework
 import brut.androlib.res.Framework
 import brut.androlib.res.ResourcesDecoder
-import brut.androlib.res.decoder.AndroidManifestPullStreamDecoder
 import brut.androlib.res.decoder.AndroidManifestResourceParser
-import brut.androlib.res.xml.ResXmlUtils
+import brut.androlib.res.decoder.XmlPullStreamDecoder
+import brut.androlib.res.xml.ResXmlPatcher
 import brut.directory.ExtFile
 import java.io.InputStream
 import java.io.OutputStream
@@ -51,62 +51,64 @@ class ResourcePatchContext internal constructor(
      *
      * @param mode The [ResourceMode] to use.
      */
-    internal fun decodeResources(mode: ResourceMode) = with(packageMetadata.apkInfo) {
-        config.initializeTemporaryFilesDirectories()
+    internal fun decodeResources(mode: ResourceMode) =
+        with(packageMetadata.apkInfo) {
+            config.initializeTemporaryFilesDirectories()
 
-        // Needed to decode resources.
-        val resourcesDecoder = ResourcesDecoder(config.resourceConfig, this)
+            // Needed to decode resources.
+            val resourcesDecoder = ResourcesDecoder(config.resourceConfig, this)
 
-        if (mode == ResourceMode.FULL) {
-            logger.info("Decoding resources")
+            if (mode == ResourceMode.FULL) {
+                logger.info("Decoding resources")
 
-            resourcesDecoder.decodeResources(config.apkFiles)
-            resourcesDecoder.decodeManifest(config.apkFiles)
+                resourcesDecoder.decodeResources(config.apkFiles)
+                resourcesDecoder.decodeManifest(config.apkFiles)
 
-            // Needed to record uncompressed files.
-            ApkDecoder(this, config.resourceConfig).recordUncompressedFiles(resourcesDecoder.resFileMapping)
+                // Needed to record uncompressed files.
+                val apkDecoder = ApkDecoder(config.resourceConfig, this)
+                apkDecoder.recordUncompressedFiles(resourcesDecoder.resFileMapping)
 
-            usesFramework =
-                UsesFramework().apply {
-                    ids = resourcesDecoder.resTable.listFramePackages().map { it.id }
-                }
-        } else {
-            logger.info("Decoding app manifest")
-
-            // Decode manually instead of using resourceDecoder.decodeManifest
-            // because it does not support decoding to an OutputStream.
-            AndroidManifestPullStreamDecoder(
-                AndroidManifestResourceParser(resourcesDecoder.resTable),
-                resourcesDecoder.newXmlSerializer(),
-            ).decode(
-                apkFile.directory.getFileInput("AndroidManifest.xml"),
-                // Older Android versions do not support OutputStream.nullOutputStream()
-                object : OutputStream() {
-                    override fun write(b: Int) { // Do nothing.
+                usesFramework =
+                    UsesFramework().apply {
+                        ids = resourcesDecoder.resTable.listFramePackages().map { it.id }
                     }
-                },
-            )
+            } else {
+                logger.info("Decoding app manifest")
 
-            // Get the package name and version from the manifest using the XmlPullStreamDecoder.
-            // AndroidManifestPullStreamDecoder.decode() sets metadata.apkInfo.
-            packageMetadata.let { metadata ->
-                metadata.packageName = resourcesDecoder.resTable.packageRenamed
-                versionInfo.let {
-                    metadata.packageVersion = it.versionName ?: it.versionCode
+                // Decode manually instead of using resourceDecoder.decodeManifest
+                // because it does not support decoding to an OutputStream.
+                XmlPullStreamDecoder(
+                    AndroidManifestResourceParser(resourcesDecoder.resTable),
+                    resourcesDecoder.resXmlSerializer,
+                ).decodeManifest(
+                    apkFile.directory.getFileInput("AndroidManifest.xml"),
+                    // Older Android versions do not support OutputStream.nullOutputStream()
+                    object : OutputStream() {
+                        override fun write(b: Int) { // Do nothing.
+                        }
+                    },
+                )
+
+                // Get the package name and version from the manifest using the XmlPullStreamDecoder.
+                // XmlPullStreamDecoder.decodeManifest() sets metadata.apkInfo.
+                packageMetadata.let { metadata ->
+                    metadata.packageName = resourcesDecoder.resTable.packageRenamed
+                    versionInfo.let {
+                        metadata.packageVersion = it.versionName ?: it.versionCode
+                    }
+
+                    /*
+                     The ResTable if flagged as sparse if the main package is not loaded, which is the case here,
+                     because ResourcesDecoder.decodeResources loads the main package
+                     and not XmlPullStreamDecoder.decodeManifest.
+                     See ARSCDecoder.readTableType for more info.
+
+                     Set this to false again to prevent the ResTable from being flagged as sparse falsely.
+                     */
+                    metadata.apkInfo.sparseResources = false
                 }
-
-                /*
-                 The ResTable if flagged as sparse if the main package is not loaded, which is the case here,
-                 because ResourcesDecoder.decodeResources loads the main package
-                 and not AndroidManifestPullStreamDecoder.decode.
-                 See ARSCDecoder.readTableType for more info.
-
-                 Set this to false again to prevent the ResTable from being flagged as sparse falsely.
-                 */
-                metadata.apkInfo.sparseResources = false
             }
         }
-    }
 
     /**
      * Compile resources in [PatcherConfig.apkFiles].
@@ -128,10 +130,10 @@ class ResourcePatchContext internal constructor(
                     AaptInvoker(
                         config.resourceConfig,
                         packageMetadata.apkInfo,
-                    ).invoke(
+                    ).invokeAapt(
                         resources.resolve("resources.apk"),
                         config.apkFiles.resolve("AndroidManifest.xml").also {
-                            ResXmlUtils.fixingPublicAttrsInProviderAttributes(it)
+                            ResXmlPatcher.fixingPublicAttrsInProviderAttributes(it)
                         },
                         config.apkFiles.resolve("res"),
                         null,

src/main/kotlin/app/revanced/patcher/util/ClassMerger.kt

@@ -60,7 +60,7 @@ internal object ClassMerger {
 
         if (missingMethods.isEmpty()) return this
 
-        logger.fine { "Found ${missingMethods.size} missing methods" }
+        logger.fine("Found ${missingMethods.size} missing methods")
 
         return asMutableClass().apply {
             methods.addAll(missingMethods.map { it.toMutable() })
@@ -80,7 +80,7 @@ internal object ClassMerger {
 
         if (missingFields.isEmpty()) return this
 
-        logger.fine { "Found ${missingFields.size} missing fields" }
+        logger.fine("Found ${missingFields.size} missing fields")
 
         return asMutableClass().apply {
             fields.addAll(missingFields.map { it.toMutable() })
@@ -100,7 +100,7 @@ internal object ClassMerger {
             context.traverseClassHierarchy(this) {
                 if (accessFlags.isPublic()) return@traverseClassHierarchy
 
-                logger.fine { "Publicizing ${this.type}" }
+                logger.fine("Publicizing ${this.type}")
 
                 accessFlags = accessFlags.toPublic()
             }
@@ -124,7 +124,7 @@ internal object ClassMerger {
 
         if (brokenFields.isEmpty()) return this
 
-        logger.fine { "Found ${brokenFields.size} broken fields" }
+        logger.fine("Found ${brokenFields.size} broken fields")
 
         /**
          * Make a field public.
@@ -153,7 +153,7 @@ internal object ClassMerger {
 
         if (brokenMethods.isEmpty()) return this
 
-        logger.fine { "Found ${brokenMethods.size} methods" }
+        logger.fine("Found ${brokenMethods.size} methods")
 
         /**
          * Make a method public.

src/main/kotlin/app/revanced/patcher/util/Document.kt

@@ -5,7 +5,6 @@ import java.io.Closeable
 import java.io.File
 import java.io.InputStream
 import javax.xml.parsers.DocumentBuilderFactory
-import javax.xml.transform.OutputKeys
 import javax.xml.transform.TransformerFactory
 import javax.xml.transform.dom.DOMSource
 import javax.xml.transform.stream.StreamResult
@@ -35,22 +34,15 @@ class Document internal constructor(
                 readerCount.remove(it)
             }
 
-            val transformer = TransformerFactory.newInstance().newTransformer()
-            // Set to UTF-16 to prevent surrogate pairs from being escaped to invalid numeric character references, but save as UTF-8.
-            if (isAndroid) {
-                transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-16")
-                transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes")
-                it.bufferedWriter(charset = Charsets.UTF_8).use { writer ->
-                    transformer.transform(DOMSource(this), StreamResult(writer))
-                }
-            } else {
-                transformer.transform(DOMSource(this), StreamResult(it))
+            it.outputStream().use { stream ->
+                TransformerFactory.newInstance()
+                    .newTransformer()
+                    .transform(DOMSource(this), StreamResult(stream))
             }
         }
     }
 
     private companion object {
         private val readerCount = mutableMapOf<File, Int>()
-        private val isAndroid = System.getProperty("java.runtime.name") == "Android Runtime"
     }
 }

src/main/kotlin/app/revanced/patcher/util/MethodNavigator.kt

@@ -17,6 +17,7 @@ import kotlin.reflect.KProperty
 /**
  * A navigator for methods.
  *
+ * @param context The [BytecodePatchContext] to use.
  * @param startMethod The [Method] to start navigating from.
  *
  * @constructor Creates a new [MethodNavigator].
@@ -24,16 +25,12 @@ import kotlin.reflect.KProperty
  * @throws NavigateException If the method does not have an implementation.
  * @throws NavigateException If the instruction at the specified index is not a method reference.
  */
-context(BytecodePatchContext)
-class MethodNavigator internal constructor(
-    private var startMethod: MethodReference,
-) {
+class MethodNavigator internal constructor(private val context: BytecodePatchContext, private var startMethod: MethodReference) {
     private var lastNavigatedMethodReference = startMethod
 
-    private val lastNavigatedMethodInstructions
-        get() = with(original()) {
-            instructionsOrNull ?: throw NavigateException("Method $this does not have an implementation.")
-        }
+    private val lastNavigatedMethodInstructions get() = with(original()) {
+        instructionsOrNull ?: throw NavigateException("Method $definingClass.$name does not have an implementation.")
+    }
 
     /**
      * Navigate to the method at the specified index.
@@ -42,7 +39,7 @@ class MethodNavigator internal constructor(
      *
      * @return This [MethodNavigator].
      */
-    fun to(vararg index: Int): MethodNavigator {
+    fun at(vararg index: Int): MethodNavigator {
         index.forEach {
             lastNavigatedMethodReference = lastNavigatedMethodInstructions.getMethodReferenceAt(it)
         }
@@ -56,7 +53,7 @@ class MethodNavigator internal constructor(
      * @param index The index of the method to navigate to.
      * @param predicate The predicate to match.
      */
-    fun to(index: Int = 0, predicate: (Instruction) -> Boolean): MethodNavigator {
+    fun at(index: Int = 0, predicate: (Instruction) -> Boolean): MethodNavigator {
         lastNavigatedMethodReference = lastNavigatedMethodInstructions.asSequence()
             .filter(predicate).asIterable().getMethodReferenceAt(index)
 
@@ -80,7 +77,7 @@ class MethodNavigator internal constructor(
      *
      * @return The last navigated method mutably.
      */
-    fun stop() = classBy(matchesCurrentMethodReferenceDefiningClass)!!.mutableClass.firstMethodBySignature
+    fun stop() = context.classBy(matchesCurrentMethodReferenceDefiningClass)!!.mutableClass.firstMethodBySignature
         as MutableMethod
 
     /**
@@ -95,7 +92,7 @@ class MethodNavigator internal constructor(
      *
      * @return The last navigated method immutably.
      */
-    fun original(): Method = classes.first(matchesCurrentMethodReferenceDefiningClass).firstMethodBySignature
+    fun original() = context.classes.first(matchesCurrentMethodReferenceDefiningClass).firstMethodBySignature
 
     /**
      * Predicate to match the class defining the current method reference.
@@ -107,10 +104,9 @@ class MethodNavigator internal constructor(
     /**
      * Find the first [lastNavigatedMethodReference] in the class.
      */
-    private val ClassDef.firstMethodBySignature
-        get() = methods.first {
-            MethodUtil.methodSignaturesMatch(it, lastNavigatedMethodReference)
-        }
+    private val ClassDef.firstMethodBySignature get() = methods.first {
+        MethodUtil.methodSignaturesMatch(it, lastNavigatedMethodReference)
+    }
 
     /**
      * An exception thrown when navigating fails.

src/main/kotlin/app/revanced/patcher/util/smali/InlineSmaliCompiler.kt

@@ -50,7 +50,7 @@ class InlineSmaliCompiler {
                     registers,
                     instructions,
                 )
-            val reader = InputStreamReader(input.byteInputStream(), Charsets.UTF_8)
+            val reader = InputStreamReader(input.byteInputStream())
             val lexer: LexerErrorInterface = smaliFlexLexer(reader, 15)
             val tokens = CommonTokenStream(lexer as TokenSource)
             val parser = smaliParser(tokens)

src/test/kotlin/app/revanced/patcher/PatcherTest.kt

@@ -3,18 +3,21 @@ package app.revanced.patcher
 import app.revanced.patcher.patch.*
 import app.revanced.patcher.patch.BytecodePatchContext.LookupMaps
 import app.revanced.patcher.util.ProxyClassList
+import com.android.tools.smali.dexlib2.iface.ClassDef
+import com.android.tools.smali.dexlib2.iface.Method
 import com.android.tools.smali.dexlib2.immutable.ImmutableClassDef
 import com.android.tools.smali.dexlib2.immutable.ImmutableMethod
-import io.mockk.*
+import io.mockk.every
+import io.mockk.just
+import io.mockk.mockk
+import io.mockk.runs
+import jdk.internal.module.ModuleBootstrap.patcher
 import kotlinx.coroutines.flow.toList
 import kotlinx.coroutines.runBlocking
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.assertAll
 import java.util.logging.Logger
-import kotlin.test.Test
-import kotlin.test.assertEquals
-import kotlin.test.assertNotNull
-import kotlin.test.assertTrue
+import kotlin.test.*
 
 internal object PatcherTest {
     private lateinit var patcher: Patcher
@@ -150,10 +153,10 @@ internal object PatcherTest {
         val patch = bytecodePatch {
             execute {
                 // Fingerprint can never match.
-                val fingerprint = fingerprint { }
+                val match by fingerprint { }
 
                 // Throws, because the fingerprint can't be matched.
-                fingerprint.patternMatch
+                match.patternMatch
             }
         }
 
@@ -190,6 +193,11 @@ internal object PatcherTest {
                 ),
             ),
         )
+        every { with(patcher.context.bytecodeContext) { any<Fingerprint>().match } } answers { callOriginal() }
+        every { with(patcher.context.bytecodeContext) { any<Fingerprint>().match(any<ClassDef>()) } } answers { callOriginal() }
+        every { with(patcher.context.bytecodeContext) { any<Fingerprint>().match(any<Method>()) } } answers { callOriginal() }
+        every { patcher.context.bytecodeContext.classBy(any()) } answers { callOriginal() }
+        every { patcher.context.bytecodeContext.proxy(any()) } answers { callOriginal() }
 
         val fingerprint = fingerprint { returns("V") }
         val fingerprint2 = fingerprint { returns("V") }
@@ -200,21 +208,19 @@ internal object PatcherTest {
                 execute {
                     fingerprint.match(classes.first().methods.first())
                     fingerprint2.match(classes.first())
-                    fingerprint3.originalClassDef
+                    fingerprint3.match
                 }
             },
         )
 
         patches()
 
-        with(patcher.context.bytecodeContext) {
-            assertAll(
-                "Expected fingerprints to match.",
-                { assertNotNull(fingerprint.originalClassDefOrNull) },
-                { assertNotNull(fingerprint2.originalClassDefOrNull) },
-                { assertNotNull(fingerprint3.originalClassDefOrNull) },
-            )
-        }
+        assertAll(
+            "Expected fingerprints to match.",
+            { assertNotNull(fingerprint._match) },
+            { assertNotNull(fingerprint2._match) },
+            { assertNotNull(fingerprint3._match) },
+        )
     }
 
     private operator fun Set<Patch<*>>.invoke(): List<PatchResult> {