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add listen

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This commit is contained in:
tursom 2021-07-14 14:19:48 +08:00
parent 306b3cddd6
commit cc9a6d47d2
2 changed files with 6 additions and 1 deletions
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2
ts-core/ts-delegation/ts-observer/build.gradle.kts
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@ -5,7 +5,7 @@ plugins {
dependencies {
implementation(project(":ts-core"))
implementation(project(":ts-core:ts-delegation"))
api(project(":ts-core:ts-delegation"))
}
@kotlin.Suppress("UNCHECKED_CAST")

5
ts-core/ts-delegation/ts-observer/src/main/kotlin/cn/tursom/core/delegation/observer/delegations.kt
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@ -43,6 +43,11 @@ fun <T, V> listenable(delegatedField: MutableDelegatedField<T, V>): MutableDeleg
infix operator fun <T, V> ListenableListener<T, V>.plus(listener: T.(old: V, new: V) -> Unit): Listener<T, V> =
addListener(listener)
@OptIn(Listenable::class)
infix fun <V> KProperty0<V>.listen(listener: Any.(old: V, new: V) -> Unit) {
getListenableMutableDelegatedField()!!.addListener(listener)
}
@OptIn(Listenable::class)
fun <V> KProperty0<V>.getListenableMutableDelegatedField(): ListenableMutableDelegatedField<Any, V>? {
isAccessible = true