Support local classes in reflection

core/descriptors.runtime/src/org/jetbrains/kotlin/di/InjectorForRuntimeDescriptorLoader.java

@@ -18,6 +18,7 @@ package org.jetbrains.kotlin.di;
 
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor;
 import org.jetbrains.kotlin.resolve.jvm.JavaDescriptorResolver;
+import org.jetbrains.kotlin.load.kotlin.DeserializationComponentsForJava;
 import org.jetbrains.kotlin.load.java.components.ExternalSignatureResolver;
 import org.jetbrains.kotlin.load.java.components.MethodSignatureChecker;
 import org.jetbrains.kotlin.load.java.components.JavaResolverCache;
@@ -33,7 +34,6 @@ import org.jetbrains.kotlin.load.kotlin.reflect.ReflectKotlinClassFinder;
 import org.jetbrains.kotlin.load.java.lazy.LazyJavaPackageFragmentProvider;
 import org.jetbrains.kotlin.load.java.lazy.GlobalJavaResolverContext;
 import org.jetbrains.kotlin.load.kotlin.DeserializedDescriptorResolver;
-import org.jetbrains.kotlin.load.kotlin.DeserializationComponentsForJava;
 import org.jetbrains.kotlin.load.kotlin.JavaClassDataFinder;
 import org.jetbrains.kotlin.load.kotlin.BinaryClassAnnotationAndConstantLoaderImpl;
 import org.jetbrains.annotations.NotNull;
@@ -46,6 +46,7 @@ public class InjectorForRuntimeDescriptorLoader {
     private final ClassLoader classLoader;
     private final ModuleDescriptor moduleDescriptor;
     private final JavaDescriptorResolver javaDescriptorResolver;
+    private final DeserializationComponentsForJava deserializationComponentsForJava;
     private final ExternalSignatureResolver externalSignatureResolver;
     private final MethodSignatureChecker methodSignatureChecker;
     private final JavaResolverCache javaResolverCache;
@@ -61,7 +62,6 @@ public class InjectorForRuntimeDescriptorLoader {
     private final LazyJavaPackageFragmentProvider lazyJavaPackageFragmentProvider;
     private final GlobalJavaResolverContext globalJavaResolverContext;
     private final DeserializedDescriptorResolver deserializedDescriptorResolver;
-    private final DeserializationComponentsForJava deserializationComponentsForJava;
     private final JavaClassDataFinder javaClassDataFinder;
     private final BinaryClassAnnotationAndConstantLoaderImpl binaryClassAnnotationAndConstantLoader;
 
@@ -109,4 +109,8 @@ public class InjectorForRuntimeDescriptorLoader {
         return this.javaDescriptorResolver;
     }
 
+    public DeserializationComponentsForJava getDeserializationComponentsForJava() {
+        return this.deserializationComponentsForJava;
+    }
+
 }

core/descriptors.runtime/src/org/jetbrains/kotlin/load/kotlin/reflect/RuntimeModuleData.kt

@@ -16,17 +16,20 @@
 
 package org.jetbrains.kotlin.load.kotlin.reflect
 
+import org.jetbrains.kotlin.builtins.KotlinBuiltIns
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
 import org.jetbrains.kotlin.descriptors.impl.ModuleDescriptorImpl
+import org.jetbrains.kotlin.di.InjectorForRuntimeDescriptorLoader
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.platform.JavaToKotlinClassMap
-import org.jetbrains.kotlin.builtins.KotlinBuiltIns
+import org.jetbrains.kotlin.serialization.deserialization.LocalClassResolver
-import org.jetbrains.kotlin.di.InjectorForRuntimeDescriptorLoader
 
 public class RuntimeModuleData private(private val injector: InjectorForRuntimeDescriptorLoader) {
     public val module: ModuleDescriptor get() = injector.getModuleDescriptor()
 
-    class object {
+    public val localClassResolver: LocalClassResolver get() = injector.getDeserializationComponentsForJava().components.localClassResolver
+
+    default object {
         public fun create(classLoader: ClassLoader): RuntimeModuleData {
             val module = ModuleDescriptorImpl(Name.special("<runtime module for $classLoader>"), listOf(), JavaToKotlinClassMap.INSTANCE)
             module.addDependencyOnModule(module)

core/reflection.jvm/src/kotlin/reflect/jvm/internal/KClassImpl.kt

@@ -38,11 +38,13 @@ class KClassImpl<T>(override val jClass: Class<T>) : KCallableContainerImpl(), K
 
     val descriptor by ReflectProperties.lazySoft {(): ClassDescriptor ->
         val moduleData = jClass.getOrCreateModule()
+        val classId = jClass.classId
 
-        val found = moduleData.module.findClassAcrossModuleDependencies(jClass.classId)
+        val descriptor =
-        if (found != null) return@lazySoft found
+                if (classId.isLocal()) moduleData.localClassResolver.resolveLocalClass(classId)
+                else moduleData.module.findClassAcrossModuleDependencies(classId)
 
-        throw KotlinReflectionInternalError("Class not resolved: $jClass")
+        descriptor ?: throw KotlinReflectionInternalError("Class not resolved: $jClass")
     }
 
     override val scope: JetScope get() = descriptor.getDefaultType().getMemberScope()

generators/src/org/jetbrains/kotlin/generators/injectors/GenerateInjectors.kt

@@ -144,6 +144,7 @@ private fun generatorForRuntimeDescriptorLoader() =
             publicParameter<ModuleDescriptor>()
 
             publicField<JavaDescriptorResolver>()
+            publicField<DeserializationComponentsForJava>()
 
             field<ExternalSignatureResolver>(init = GetSingleton.byField(javaClass<ExternalSignatureResolver>(), "DO_NOTHING"))
             field<MethodSignatureChecker>(init = GetSingleton.byField(javaClass<MethodSignatureChecker>(), "DO_NOTHING"))