core/proguard_basic_keeps.flags

# Preserve line number information for debugging stack traces.
-keepattributes SourceFile,LineNumberTable

# Annotations are implemented as attributes, so we have to explicitly keep them.
# Keep all runtime-visible annotations like RuntimeVisibleParameterAnnotations
# and RuntimeVisibleTypeAnnotations, as well as associated defaults.
-keepattributes RuntimeVisible*Annotation*,AnnotationDefault

# With R8 full mode, certain attributes are only kept when matched with an
# explicit keep rule for that target, even with a global -keepattributes rule.
# As such, we can add the global keep rule here with minimal cost while
# simplifying incremental development.
-keepattributes Exceptions

# For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations
-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}

# For native methods, see http://proguard.sourceforge.net/manual/examples.html#native
-keepclasseswithmembernames,includedescriptorclasses class * {
    native <methods>;
}

# class$ methods are inserted by some compilers to implement .class construct,
# see http://proguard.sourceforge.net/manual/examples.html#library
-keepclassmembernames class * {
    java.lang.Class class$(java.lang.String);
    java.lang.Class class$(java.lang.String, boolean);
}

# Keep serializable classes and necessary members for serializable classes
# Copied from the ProGuard manual at http://proguard.sourceforge.net.
-keepnames class * implements java.io.Serializable
-keepclassmembers class * implements java.io.Serializable {
    static final long serialVersionUID;
    private static final java.io.ObjectStreamField[] serialPersistentFields;
    !static !transient <fields>;
    private void writeObject(java.io.ObjectOutputStream);
    private void readObject(java.io.ObjectInputStream);
    java.lang.Object writeReplace();
    java.lang.Object readResolve();
}

# Keep all Javascript API methods
-keepclassmembers class * {
    @android.webkit.JavascriptInterface <methods>;
}

# Keep Throwable's constructor that takes a String argument.
-keepclassmembers class * extends java.lang.Throwable {
  <init>(java.lang.String);
}

# Please specify classes to be kept explicitly in your package's configuration.
# -keep class * extends android.app.Activity
# -keep class * extends android.view.View
# -keep class * extends android.app.Service
# -keep class * extends android.content.BroadcastReceiver
# -keep class * extends android.content.ContentProvider
# -keep class * extends android.preference.Preference
# -keep class * extends android.app.BackupAgent

# Parcelable CREATORs must be kept for Parcelable functionality
-keepclassmembers class * implements android.os.Parcelable {
  public static final ** CREATOR;
}

# The support library contains references to newer platform versions.
# Don't warn about those in case this app is linking against an older
# platform version.  We know about them, and they are safe.
# See proguard-android.txt in the SDK package.
#
# DO NOT USE THIS: We figured it's dangerous to blindly ignore all support library warnings.
# ProGuard may strip members of subclass of unknown super classes, in case an app is linking against
# LOCAL_SDK_VERSION lower than the support library's LOCAL_SDK_VERSION.
# See bug/20658265.
# -dontwarn android.support.**

# From https://github.com/google/guava/wiki/UsingProGuardWithGuava
# Striped64, LittleEndianByteArray, UnsignedBytes, AbstractFuture
-dontwarn sun.misc.Unsafe
# Futures.getChecked (which often won't work with Proguard anyway) uses this. It
# has a fallback, but again, don't use Futures.getChecked on Android regardless.
-dontwarn java.lang.ClassValue

# Ignore missing annotation references for various support libraries.
# While this is not ideal, it should be relatively safe given that
# 1) runtime-visible annotations will still be kept, and 2) compile-time
# annotations are stripped by R8 anyway.
# Note: The ** prefix is used to accommodate jarjar repackaging.
# TODO(b/242088131): Remove these exemptions after resolving transitive libs
# dependencies that are provided to R8.
-dontwarn **android**.annotation*.**
-dontwarn **com.google.errorprone.annotations.**
-dontwarn javax.annotation.**
-dontwarn org.checkerframework.**
-dontwarn org.jetbrains.annotations.**

# Less spammy.
-dontnote

# The lite proto runtime uses reflection to access fields based on the names in
# the schema, keep all the fields. Wildcard is used to apply the rule to classes
# that have been renamed with jarjar.
-keepclassmembers class * extends **.protobuf.MessageLite { <fields>; }