# Keep `Companion` object fields of serializable classes. # This avoids serializer lookup through `getDeclaredClasses` as done for named companion objects. -if @kotlinx.serialization.Serializable class ** -keepclassmembers class <1> { static <1>$Companion Companion; } # Keep `serializer()` on companion objects (both default and named) of serializable classes. -if @kotlinx.serialization.Serializable class ** { static **$* *; } -keepclassmembers class <2>$<3> { kotlinx.serialization.KSerializer serializer(...); } # Keep `INSTANCE.serializer()` of serializable objects. -if @kotlinx.serialization.Serializable class ** { public static ** INSTANCE; } -keepclassmembers class <1> { public static <1> INSTANCE; kotlinx.serialization.KSerializer serializer(...); } # @Serializable and @Polymorphic are used at runtime for polymorphic serialization. -keepattributes RuntimeVisibleAnnotations,AnnotationDefault # Don't print notes about potential mistakes or omissions in the configuration for kotlinx-serialization classes # See also https://github.com/Kotlin/kotlinx.serialization/issues/1900 -dontnote kotlinx.serialization.** # Serialization core uses `java.lang.ClassValue` for caching inside these specified classes. # If there is no `java.lang.ClassValue` (for example, in Android), then R8/ProGuard will print a warning. # However, since in this case they will not be used, we can disable these warnings -dontwarn kotlinx.serialization.internal.ClassValueReferences