Refactor plugin-generated call to EnumSerializer():

support new values() argument.
Get rid of old @JvmOverloads requirements in runtime.

plugins/kotlin-serialization/kotlin-serialization-compiler/src/org/jetbrains/kotlinx/serialization/compiler/backend/ir/GeneratorHelpers.kt

@@ -588,15 +588,11 @@ interface IrBuilderExtension {
                     typeArgs = listOf(thisIrType)
                 }
                 enumSerializerId -> {
-                    serializerClass = module.getClassFromInternalSerializationPackage("CommonEnumSerializer")
+                    serializerClass = module.getClassFromInternalSerializationPackage(SpecialBuiltins.enumSerializer)
                     args = kType.toClassDescriptor!!.let { enumDesc ->
                         listOf(
                             irString(enumDesc.serialName()),
-                            irCall(findEnumValuesMethod(enumDesc)),
-                            createArrayOfExpression(
-                                compilerContext.irBuiltIns.stringType,
-                                getEnumMembersNames(enumDesc).map { irString(it) }.toList()
-                            )
+                            irCall(findEnumValuesMethod(enumDesc))
                         )
                     }
                     typeArgs = listOf(thisIrType)

plugins/kotlin-serialization/kotlin-serialization-compiler/src/org/jetbrains/kotlinx/serialization/compiler/backend/js/JsCodegenUtil.kt

@@ -26,6 +26,7 @@ import org.jetbrains.kotlin.js.translate.reference.ReferenceTranslator
 import org.jetbrains.kotlin.js.translate.utils.JsAstUtils
 import org.jetbrains.kotlin.psi.KtExpression
 import org.jetbrains.kotlin.psi.KtPureClassOrObject
+import org.jetbrains.kotlin.resolve.DescriptorUtils
 import org.jetbrains.kotlin.resolve.descriptorUtil.classId
 import org.jetbrains.kotlin.resolve.descriptorUtil.getSuperClassNotAny
 import org.jetbrains.kotlin.types.KotlinType
@@ -160,8 +161,16 @@ internal fun AbstractSerialGenerator.serializerInstance(
                 ExpressionVisitor.getObjectKClass(context, kType.toClassDescriptor!!)
             )
             serializerClass.classId == enumSerializerId -> listOf(
-                ExpressionVisitor.getObjectKClass(context, kType.toClassDescriptor!!),
-                JsStringLiteral(kType.serialName())
+                JsStringLiteral(kType.serialName()),
+                // EnumClass.values() invocation
+                JsInvocation(
+                    context.getInnerNameForDescriptor(
+                        DescriptorUtils.getFunctionByName(
+                            kType.toClassDescriptor!!.staticScope,
+                            DescriptorUtils.ENUM_VALUES
+                        )
+                    ).makeRef()
+                )
             )
             serializerClass.classId == objectSerializerId -> listOf(
                 JsStringLiteral(kType.serialName()),

plugins/kotlin-serialization/kotlin-serialization-compiler/src/org/jetbrains/kotlinx/serialization/compiler/backend/jvm/JVMCodegenUtil.kt

@@ -83,11 +83,11 @@ internal fun InstructionAdapter.genValidateProperty(index: Int, bitMaskAddress:
     iconst(0)
 }
 
-internal fun InstructionAdapter.genExceptionThrow(exceptionClass: String, message: String) {
-    anew(Type.getObjectType(exceptionClass))
+internal fun InstructionAdapter.genMissingFieldExceptionThrow(fieldName: String) {
+    anew(Type.getObjectType(serializationExceptionMissingFieldName))
     dup()
-    aconst(message)
-    invokespecial(exceptionClass, "<init>", "(Ljava/lang/String;)V", false)
+    aconst(fieldName)
+    invokespecial(serializationExceptionMissingFieldName, "<init>", "(Ljava/lang/String;)V", false)
     checkcast(Type.getObjectType("java/lang/Throwable"))
     athrow()
 }
@@ -287,7 +287,16 @@ internal fun AbstractSerialGenerator.stackValueSerializerInstance(codegen: Class
 
         val serialName = kType.serialName()
         when (serializer.classId) {
-            enumSerializerId, contextSerializerId, polymorphicSerializerId -> {
+            enumSerializerId -> {
+                aconst(serialName)
+                signature.append("Ljava/lang/String;")
+                val enumJavaType = codegen.typeMapper.mapType(kType, null, TypeMappingMode.GENERIC_ARGUMENT)
+                val javaEnumArray = Type.getType("[Ljava/lang/Enum;")
+                invokestatic(enumJavaType.internalName, "values","()[${enumJavaType.descriptor}", false)
+                checkcast(javaEnumArray)
+                signature.append(javaEnumArray.descriptor)
+            }
+            contextSerializerId, polymorphicSerializerId -> {
                 // a special way to instantiate enum -- need a enum KClass reference
                 // GENERIC_ARGUMENT forces boxing in order to obtain KClass
                 aconst(codegen.typeMapper.mapType(kType, null, TypeMappingMode.GENERIC_ARGUMENT))

plugins/kotlin-serialization/kotlin-serialization-compiler/src/org/jetbrains/kotlinx/serialization/compiler/backend/jvm/SerializableCodegenImpl.kt

@@ -191,7 +191,7 @@ class SerializableCodegenImpl(
                 genValidateProperty(i, bitMaskOff(i))
                 val nonThrowLabel = Label()
                 ificmpne(nonThrowLabel)
-                genExceptionThrow(serializationExceptionMissingFieldName, prop.name)
+                genMissingFieldExceptionThrow(prop.name)
                 visitLabel(nonThrowLabel)
                 // setting field
                 load(0, thisAsmType)

plugins/kotlin-serialization/kotlin-serialization-compiler/src/org/jetbrains/kotlinx/serialization/compiler/backend/jvm/SerializerCodegenImpl.kt

@@ -406,11 +406,8 @@ open class SerializerCodegenImpl(
             )
             if (!serializableDescriptor.isInternalSerializable) {
                 //validate all required (constructor) fields
-                val nonThrowLabel = Label()
-                val throwLabel = Label()
                 for ((i, property) in properties.serializableConstructorProperties.withIndex()) {
                     if (property.optional || property.transient) {
-                        // todo: Normal reporting of error
                         if (!property.isConstructorParameterWithDefault)
                             throw CompilationException(
                                 "Property ${property.name} was declared as optional/transient but has no default value",
@@ -419,15 +416,12 @@ open class SerializerCodegenImpl(
                             )
                     } else {
                         genValidateProperty(i, bitMaskOff(i))
-                        // todo: print name of each variable?
-                        ificmpeq(throwLabel)
+                        val nonThrowLabel = Label()
+                        ificmpne(nonThrowLabel)
+                        genMissingFieldExceptionThrow(property.name)
+                        visitLabel(nonThrowLabel)
                     }
                 }
-                goTo(nonThrowLabel)
-                // throwing an exception
-                visitLabel(throwLabel)
-                genExceptionThrow(serializationExceptionName, "Not all required constructor fields were specified")
-                visitLabel(nonThrowLabel)
             }
             // create object with constructor
             anew(serializableAsmType)
@@ -564,7 +558,7 @@ open class SerializerCodegenImpl(
                 //    throw
                 // set
                 ificmpne(nextLabel)
-                genExceptionThrow(serializationExceptionMissingFieldName, property.name)
+                genMissingFieldExceptionThrow(property.name)
                 visitLabel(nextLabel)
             }
 

plugins/kotlin-serialization/kotlin-serialization-compiler/src/org/jetbrains/kotlinx/serialization/compiler/backend/jvm/SerializerForEnumsCodegen.kt

@@ -57,7 +57,8 @@ class SerializerForEnumsCodegen(
             // regular .serialName() produces fqName here, which is kinda inconvenient for enum entry
             val serialName = entry.annotations.serialNameValue ?: entry.name.toString()
             aconst(serialName)
-            invokevirtual(descImplType.internalName, CallingConventions.addElement, "(Ljava/lang/String;)V", false)
+            iconst(0)
+            invokevirtual(descImplType.internalName, CallingConventions.addElement, "(Ljava/lang/String;Z)V", false)
             // pushing annotations
             addSyntheticAnnotationsToDescriptor(descriptorVar, entry, CallingConventions.addAnnotation)
         }