Reduction of information held in function-related

Author: k163377

src/main/kotlin/io/github/projectmapk/jackson/module/kogera/deser/valueInstantiator/creator/MethodValueCreator.kt

@@ -8,7 +8,6 @@ import io.github.projectmapk.jackson.module.kogera.deser.valueInstantiator.argum
 import io.github.projectmapk.jackson.module.kogera.deser.valueInstantiator.calcMaskSize
 import io.github.projectmapk.jackson.module.kogera.getDeclaredMethodBy
 import io.github.projectmapk.jackson.module.kogera.jmClass.JmClass
-import kotlinx.metadata.KmFunction
 import java.lang.reflect.Method
 
 internal class MethodValueCreator<T>(
@@ -26,8 +25,8 @@ internal class MethodValueCreator<T>(
         // To prevent the call from failing, save the initial value and then rewrite the flag.
         if (!method.isAccessible) method.isAccessible = true
 
-        val kmFunction: KmFunction = companion.findFunctionByMethod(method)!!
-        val kmParameters = kmFunction.valueParameters
+        val function = companion.findFunctionByMethod(method)!!
+        val kmParameters = function.valueParameters
 
         valueParameters = kmParameters.map { ValueParameter(it) }
         val rawTypes = method.parameterTypes.asList()

src/main/kotlin/io/github/projectmapk/jackson/module/kogera/jmClass/JmClass.kt

@@ -7,7 +7,6 @@ import io.github.projectmapk.jackson.module.kogera.toSignature
 import kotlinx.metadata.ClassKind
 import kotlinx.metadata.ClassName
 import kotlinx.metadata.KmClass
-import kotlinx.metadata.KmFunction
 import kotlinx.metadata.isNullable
 import kotlinx.metadata.jvm.signature
 import kotlinx.metadata.kind
@@ -24,8 +23,12 @@ internal sealed interface JmClass {
         private val factoryFunctions by lazy {
             // Since it is a user-defined factory function that is processed,
             // it always has arguments and the return value is the same as declaringClass.
-            type.toKmClass()!!.functions.filter {
-                it.valueParameters.isNotEmpty() && it.returnType.reconstructClassOrNull() == declaringClass
+            type.toKmClass()!!.functions.mapNotNull { func ->
+                func
+                    .takeIf {
+                        func.valueParameters.isNotEmpty() && func.returnType.reconstructClassOrNull() == declaringClass
+                    }
+                    ?.let { JmFunction(it) }
             }
         }
         val instance: Any by lazy {
@@ -34,7 +37,7 @@ internal sealed interface JmClass {
             companionField.get(null)
         }
 
-        fun findFunctionByMethod(method: Method): KmFunction? {
+        fun findFunctionByMethod(method: Method): JmFunction? {
             val signature = method.toSignature()
             return factoryFunctions.find { it.signature == signature }
         }

src/main/kotlin/io/github/projectmapk/jackson/module/kogera/jmClass/JmFunction.kt

@@ -0,0 +1,13 @@
+package io.github.projectmapk.jackson.module.kogera.jmClass
+
+import kotlinx.metadata.KmFunction
+import kotlinx.metadata.KmValueParameter
+import kotlinx.metadata.jvm.JvmMethodSignature
+import kotlinx.metadata.jvm.signature
+
+internal class JmFunction(
+    val signature: JvmMethodSignature?,
+    val valueParameters: List<KmValueParameter>
+) {
+    constructor(function: KmFunction) : this(function.signature, function.valueParameters)
+}