optionalContextual

CHANGELOG.md

@@ -12,6 +12,7 @@
 ### 0.3.1
 
 * `Kotlin`: `1.3.71` -> `1.3.72`
+* Add `SerializersModuleBuilder#optionalContextual` for more comfortable usage of `contextual`
 
 ## 0.2.0
 

src/commonMain/kotlin/com/insanusmokrassar/sdi/utils/OptionalContextualIncluding.kt

@@ -0,0 +1,21 @@
+package com.insanusmokrassar.sdi.utils
+
+import kotlinx.serialization.InternalSerializationApi
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.modules.*
+import kotlin.reflect.KClass
+
+@InternalSerializationApi
+fun <T : Any> SerializersModuleBuilder.optionalContextual(
+    kClass: KClass<T>, kSerializer: KSerializer<T>
+) = try {
+    contextual(kClass, kSerializer)
+    true
+} catch (e: SerializerAlreadyRegisteredException) {
+    false
+}
+
+@InternalSerializationApi
+inline fun <reified T : Any> SerializersModuleBuilder.optionalContextual(
+    kSerializer: KSerializer<T>
+) = optionalContextual(T::class, kSerializer)