Set preview/experimental compiler flags instead of using annotations

app/build.gradle

@@ -309,7 +309,14 @@ repositories {
 
 // See https://kotlinlang.org/docs/reference/experimental.html#experimental-status-of-experimental-api-markers
 tasks.withType(AbstractKotlinCompile).all {
-    kotlinOptions.freeCompilerArgs += ["-Xopt-in=kotlin.Experimental"]
+    kotlinOptions.freeCompilerArgs += [
+            "-Xopt-in=kotlin.Experimental",
+            "-Xopt-in=kotlin.RequiresOptIn",
+            "-Xuse-experimental=kotlin.ExperimentalStdlibApi",
+            "-Xuse-experimental=kotlinx.coroutines.FlowPreview",
+            "-Xuse-experimental=kotlinx.coroutines.ExperimentalCoroutinesApi",
+            "-Xuse-experimental=kotlinx.serialization.ExperimentalSerializationApi",
+    ]
 }
 
 // Duplicating Hebrew string assets due to some locale code issues on different devices

app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/Backup.kt

@@ -1,13 +1,8 @@
 package eu.kanade.tachiyomi.data.backup.full.models
 
-import kotlinx.serialization.ExperimentalSerializationApi
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.protobuf.ProtoNumber
 
-/**
- * Backup json model
- */
-@ExperimentalSerializationApi
 @Serializable
 data class Backup(
     @ProtoNumber(1) val backupManga: List<BackupManga>,

app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupCategory.kt

@@ -2,11 +2,9 @@ package eu.kanade.tachiyomi.data.backup.full.models
 
 import eu.kanade.tachiyomi.data.database.models.Category
 import eu.kanade.tachiyomi.data.database.models.CategoryImpl
-import kotlinx.serialization.ExperimentalSerializationApi
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.protobuf.ProtoNumber
 
-@ExperimentalSerializationApi
 @Serializable
 class BackupCategory(
     @ProtoNumber(1) var name: String,

app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupChapter.kt

@@ -2,11 +2,9 @@ package eu.kanade.tachiyomi.data.backup.full.models
 
 import eu.kanade.tachiyomi.data.database.models.Chapter
 import eu.kanade.tachiyomi.data.database.models.ChapterImpl
-import kotlinx.serialization.ExperimentalSerializationApi
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.protobuf.ProtoNumber
 
-@ExperimentalSerializationApi
 @Serializable
 data class BackupChapter(
     // in 1.x some of these values have different names

app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupHistory.kt

@@ -1,10 +1,8 @@
 package eu.kanade.tachiyomi.data.backup.full.models
 
-import kotlinx.serialization.ExperimentalSerializationApi
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.protobuf.ProtoNumber
 
-@ExperimentalSerializationApi
 @Serializable
 data class BackupHistory(
     @ProtoNumber(0) var url: String,

app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupManga.kt

@@ -4,11 +4,9 @@ import eu.kanade.tachiyomi.data.database.models.ChapterImpl
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.database.models.MangaImpl
 import eu.kanade.tachiyomi.data.database.models.TrackImpl
-import kotlinx.serialization.ExperimentalSerializationApi
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.protobuf.ProtoNumber
 
-@ExperimentalSerializationApi
 @Serializable
 data class BackupManga(
     // in 1.x some of these values have different names

app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupSerializer.kt

@@ -1,8 +1,6 @@
 package eu.kanade.tachiyomi.data.backup.full.models
 
-import kotlinx.serialization.ExperimentalSerializationApi
 import kotlinx.serialization.Serializer
 
-@ExperimentalSerializationApi
 @Serializer(forClass = Backup::class)
 object BackupSerializer

app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupSource.kt

@@ -1,11 +1,9 @@
 package eu.kanade.tachiyomi.data.backup.full.models
 
 import eu.kanade.tachiyomi.source.Source
-import kotlinx.serialization.ExperimentalSerializationApi
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.protobuf.ProtoNumber
 
-@ExperimentalSerializationApi
 @Serializable
 data class BackupSource(
     @ProtoNumber(0) var name: String = "",

app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupTracking.kt

@@ -2,11 +2,9 @@ package eu.kanade.tachiyomi.data.backup.full.models
 
 import eu.kanade.tachiyomi.data.database.models.Track
 import eu.kanade.tachiyomi.data.database.models.TrackImpl
-import kotlinx.serialization.ExperimentalSerializationApi
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.protobuf.ProtoNumber
 
-@ExperimentalSerializationApi
 @Serializable
 data class BackupTracking(
     // in 1.x some of these values have different types or names

app/src/main/java/eu/kanade/tachiyomi/ui/manga/chapter/MangaChaptersHeaderAdapter.kt

@@ -11,7 +11,6 @@ import eu.kanade.tachiyomi.ui.manga.MangaController
 import eu.kanade.tachiyomi.util.system.getResourceColor
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.merge
@@ -53,7 +52,6 @@ class MangaChaptersHeaderAdapter(
     }
 
     inner class HeaderViewHolder(private val view: View) : RecyclerView.ViewHolder(view) {
-        @ExperimentalCoroutinesApi
         fun bind() {
             binding.chaptersLabel.text = if (numChapters == null) {
                 view.context.getString(R.string.chapters)

app/src/main/java/eu/kanade/tachiyomi/ui/manga/info/MangaInfoHeaderAdapter.kt

@@ -25,7 +25,6 @@ import eu.kanade.tachiyomi.util.system.getResourceColor
 import eu.kanade.tachiyomi.util.view.setChips
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.merge
@@ -204,7 +203,6 @@ class MangaInfoHeaderAdapter(
          * @param manga manga object containing information about manga.
          * @param source the source of the manga.
          */
-        @ExperimentalCoroutinesApi
         private fun setMangaInfo(manga: Manga, source: Source?) {
             // Update full title TextView.
             binding.mangaFullTitle.text = if (manga.title.isBlank()) {

app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/TrackSearchDialog.kt

@@ -17,7 +17,6 @@ import eu.kanade.tachiyomi.ui.base.controller.DialogController
 import kotlinx.android.synthetic.main.track_search_dialog.view.progress
 import kotlinx.android.synthetic.main.track_search_dialog.view.track_search
 import kotlinx.android.synthetic.main.track_search_dialog.view.track_search_list
-import kotlinx.coroutines.FlowPreview
 import kotlinx.coroutines.flow.debounce
 import kotlinx.coroutines.flow.filter
 import kotlinx.coroutines.flow.launchIn
@@ -95,7 +94,6 @@ class TrackSearchDialog : DialogController {
         adapter = null
     }
 
-    @FlowPreview
     override fun onAttach(view: View) {
         super.onAttach(view)
         dialogView!!.track_search.textChanges()

app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt

@@ -57,7 +57,6 @@ import eu.kanade.tachiyomi.util.view.showBar
 import eu.kanade.tachiyomi.util.view.snack
 import eu.kanade.tachiyomi.widget.SimpleAnimationListener
 import eu.kanade.tachiyomi.widget.SimpleSeekBarListener
-import kotlinx.coroutines.FlowPreview
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.drop
 import kotlinx.coroutines.flow.launchIn
@@ -653,7 +652,6 @@ class ReaderActivity : BaseRxActivity<ReaderActivityBinding, ReaderPresenter>()
     /**
      * Class that handles the user preferences of the reader.
      */
-    @FlowPreview
     private inner class ReaderConfig {
 
         /**
@@ -774,7 +772,6 @@ class ReaderActivity : BaseRxActivity<ReaderActivityBinding, ReaderPresenter>()
         /**
          * Sets the custom brightness overlay according to [enabled].
          */
-        @FlowPreview
         private fun setCustomBrightness(enabled: Boolean) {
             if (enabled) {
                 preferences.customBrightnessValue().asFlow()
@@ -789,7 +786,6 @@ class ReaderActivity : BaseRxActivity<ReaderActivityBinding, ReaderPresenter>()
         /**
          * Sets the color filter overlay according to [enabled].
          */
-        @FlowPreview
         private fun setColorFilter(enabled: Boolean) {
             if (enabled) {
                 preferences.colorFilterValue().asFlow()

app/src/main/java/eu/kanade/tachiyomi/util/lang/RxCoroutineBridge.kt

@@ -32,7 +32,6 @@ import kotlin.coroutines.resumeWithException
  * Util functions for bridging RxJava and coroutines. Taken from TachiyomiEH/SY.
  */
 
-@ExperimentalCoroutinesApi
 suspend fun <T> Single<T>.await(subscribeOn: Scheduler? = null): T {
     return suspendCancellableCoroutine { continuation ->
         val self = if (subscribeOn != null) subscribeOn(subscribeOn) else this
@@ -59,7 +58,6 @@ suspend fun <T> Single<T>.await(subscribeOn: Scheduler? = null): T {
 suspend fun <T> PreparedOperation<T>.await(): T = asRxSingle().await()
 suspend fun <T> PreparedGetObject<T>.await(): T? = asRxSingle().await()
 
-@ExperimentalCoroutinesApi
 suspend fun Completable.awaitSuspending(subscribeOn: Scheduler? = null) {
     return suspendCancellableCoroutine { continuation ->
         val self = if (subscribeOn != null) subscribeOn(subscribeOn) else this
@@ -183,7 +181,6 @@ private suspend fun <T> Observable<T>.awaitOne(): T = suspendCancellableCoroutin
 internal fun <T> CancellableContinuation<T>.unsubscribeOnCancellation(sub: Subscription) =
     invokeOnCancellation { sub.unsubscribe() }
 
-@ExperimentalCoroutinesApi
 fun <T : Any> Observable<T>.asFlow(): Flow<T> = callbackFlow {
     val observer = object : Observer<T> {
         override fun onNext(t: T) {
@@ -202,7 +199,6 @@ fun <T : Any> Observable<T>.asFlow(): Flow<T> = callbackFlow {
     awaitClose { subscription.unsubscribe() }
 }
 
-@ExperimentalCoroutinesApi
 fun <T : Any> Flow<T>.asObservable(backpressureMode: Emitter.BackpressureMode = Emitter.BackpressureMode.NONE): Observable<T> {
     return Observable.create(
         { emitter ->

app/src/main/java/eu/kanade/tachiyomi/util/lang/StringExtensions.kt

@@ -48,7 +48,6 @@ fun String.byteSize(): Int {
  * Returns a string containing the first [n] bytes from this string, or the entire string if this
  * string is shorter.
  */
-@OptIn(ExperimentalStdlibApi::class)
 fun String.takeBytes(n: Int): String {
     val bytes = toByteArray(Charsets.UTF_8)
     return if (bytes.size <= n) {