1 files changed, 47 insertions, 0 deletions
diff --git a/runtime/jsMain/src/kotlinx/serialization/Serialization.kt b/runtime/jsMain/src/kotlinx/serialization/Serialization.kt
new file mode 100644
index 00000000..74876a44
--- /dev/null
+++ b/runtime/jsMain/src/kotlinx/serialization/Serialization.kt
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2018 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package kotlinx.serialization
+
+import kotlin.reflect.KClass
+
+@Suppress("UNCHECKED_CAST")
+@ImplicitReflectionSerializer
+actual fun <T: Any> KClass<T>.compiledSerializer(): KSerializer<T>? = this.js.asDynamic().Companion?.serializer() as? KSerializer<T>
+
+@Suppress("UNUSED_VARIABLE") // KT-23633
+actual fun String.toUtf8Bytes(): ByteArray {
+    val s = this
+    val block = js("unescape(encodeURIComponent(s))") // contains only chars that fit to byte
+    return (block as String).toList().map { it.toByte() }.toByteArray()
+}
+
+@Suppress("UNUSED_VARIABLE") // KT-23633
+actual fun stringFromUtf8Bytes(bytes: ByteArray): String {
+    val s = bytes.map { (it.toInt() and 0xFF).toChar() }.joinToString(separator = "") // wide uint8 to char
+    val ans = js("decodeURIComponent(escape(s))")
+    return ans as String
+}
+
+actual fun <E: Enum<E>> enumFromName(enumClass: KClass<E>, value: String): E = enumClass.js.asDynamic().`valueOf_61zpoe$`(value) as E
+actual fun <E: Enum<E>> enumFromOrdinal(enumClass: KClass<E>, ordinal: Int): E = (enumClass.js.asDynamic().values() as Array<E>)[ordinal]
+
+actual fun <E: Enum<E>> KClass<E>.enumClassName(): String = this.js.name
+actual fun <E: Enum<E>> KClass<E>.enumMembers(): Array<E> = (this.js.asDynamic().values() as Array<E>)
+
+actual fun <T: Any, E: T?> ArrayList<E>.toNativeArray(eClass: KClass<T>): Array<E> = toTypedArray()
+
+internal actual fun Any.isInstanceOf(kclass: KClass<*>): Boolean = kclass.isInstance(this)