directly implement list methods in AbstractPagingObject

Author: adamint

src/commonMain/kotlin/com.adamratzman.spotify/models/PagingObjects.kt

@@ -6,7 +6,6 @@ import com.adamratzman.spotify.http.SpotifyEndpoint
 import com.adamratzman.spotify.models.serialization.toCursorBasedPagingObject
 import com.adamratzman.spotify.models.serialization.toPagingObject
 import com.adamratzman.spotify.utils.runBlocking
-import kotlin.reflect.KClass
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.flow.Flow
@@ -18,6 +17,7 @@ import kotlinx.coroutines.flow.toList
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.Transient
+import kotlin.reflect.KClass
 
 /*
     Types used in PagingObjects and CursorBasedPagingObjects:
@@ -209,7 +209,7 @@ abstract class AbstractPagingObject<T : Any>(
     @Transient open val offset: Int = 0,
     @Transient open val previous: String? = null,
     @Transient open val total: Int = -1
-) : List<T> by items {
+) : List<T> {
     @Transient
     internal var endpoint: SpotifyEndpoint? = null
 
@@ -262,6 +262,22 @@ abstract class AbstractPagingObject<T : Any>(
 
     @ExperimentalCoroutinesApi
     fun flowEndOrdered(): Flow<AbstractPagingObject<T>> = flowForward()
+
+
+    // A paging object is also a list, and instantiation by deserialization doesn't properly store the items list internally
+    // so we implement list methods
+
+    override val size: Int get() = items.size
+    override fun contains(element: T) = items.contains(element)
+    override fun containsAll(elements: Collection<T>) = items.containsAll(elements)
+    override fun get(index: Int) = items[index]
+    override fun indexOf(element: T) = items.indexOf(element)
+    override fun isEmpty() = items.isEmpty()
+    override fun iterator() = items.iterator()
+    override fun lastIndexOf(element: T) = items.lastIndexOf(element)
+    override fun listIterator() = items.listIterator()
+    override fun listIterator(index: Int) =items.listIterator(index)
+    override fun subList(fromIndex: Int, toIndex: Int) = items.subList(fromIndex, toIndex)
 }
 
 internal fun Any.instantiatePagingObjects(spotifyApi: SpotifyApi<*, *>) = when (this) {