I should probably go to sleep

gradle.properties

@@ -4,7 +4,7 @@ kotlin.code.style=official
 specifyKotlinAsDependency=false
 
 projectGroup=ru.dbotthepony.kommons
-projectVersion=2.9.9
+projectVersion=2.9.10
 
 guavaDepVersion=33.0.0
 gsonDepVersion=2.8.9

src/main/kotlin/ru/dbotthepony/kommons/io/DelegateSyncher.kt

@@ -41,6 +41,7 @@ import kotlin.concurrent.withLock
  * Attached delegates can be safely mutated by multiple threads concurrently
  * (attached [ListenableDelegate] can call [Listenable.addListener] callback concurrently).
  */
+@Suppress("UNCHECKED_CAST", "UNUSED")
 class DelegateSyncher : Observer {
 	private val lock = ReentrantLock()
 	private val slots = ArrayList<AbstractSlot?>()
@@ -283,6 +284,10 @@ class DelegateSyncher : Observer {
 						it.changelist.add(SetAction(KOptional(), CLEAR))
 					}
 
+					listeners.forEach {
+						it.listener.onClear()
+					}
+
 					it.markDirty()
 				}
 			}
@@ -296,6 +301,10 @@ class DelegateSyncher : Observer {
 						it.changelist.add(SetAction(KOptional(codec.copy(element)), ADD))
 					}
 
+					listeners.forEach {
+						it.listener.onValueAdded(element)
+					}
+
 					it.markDirty()
 				}
 			}
@@ -309,6 +318,10 @@ class DelegateSyncher : Observer {
 						it.changelist.add(SetAction(KOptional(codec.copy(element)), REMOVE))
 					}
 
+					listeners.forEach {
+						it.listener.onValueRemoved(element)
+					}
+
 					it.markDirty()
 				}
 			}
@@ -387,6 +400,10 @@ class DelegateSyncher : Observer {
 						it.changelist.add(MapAction(KOptional(), KOptional(), CLEAR))
 					}
 
+					listeners.forEach {
+						it.listener.onClear()
+					}
+
 					it.markDirty()
 				}
 			}
@@ -400,6 +417,10 @@ class DelegateSyncher : Observer {
 						it.changelist.add(MapAction(KOptional(keyCodec.copy(key)), KOptional(valueCodec.copy(value)), ADD))
 					}
 
+					listeners.forEach {
+						it.listener.onValueAdded(key, value)
+					}
+
 					it.markDirty()
 				}
 			}
@@ -413,6 +434,10 @@ class DelegateSyncher : Observer {
 						it.changelist.add(MapAction(KOptional(keyCodec.copy(key)), KOptional(), REMOVE))
 					}
 
+					listeners.forEach {
+						it.listener.onValueRemoved(key, value)
+					}
+
 					it.markDirty()
 				}
 			}