[K/N][runtime] Extracted compiler interface from native runtime

kotlin-native/runtime/build.gradle.kts

@@ -113,6 +113,10 @@ bitcode {
         onlyIf { targetSupportsLibBacktrace(target.name) }
     }
 
+    module("compiler_interface") {
+        headersDirs.from(files("src/main/cpp"))
+    }
+
     module("launcher") {
         headersDirs.from(files("src/main/cpp"))
     }
@@ -344,7 +348,7 @@ targetList.forEach { targetName ->
 
         from(project.buildDir.resolve("stdlib/${hostName}/stdlib"))
         from(project.buildDir.resolve("bitcode/main/$targetName")) {
-            include("runtime.bc")
+            include("runtime.bc", "compiler_interface.bc")
             into("default/targets/$targetName/native")
         }
 

kotlin-native/runtime/src/compiler_interface/cpp/CompilerCInterface.cpp

@@ -0,0 +1,81 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+
+#include "TypeInfo.h"
+#include "Memory.h"
+#include "Types.h"
+#include "Runtime.h"
+#include "Exceptions.h"
+#include "MemorySharedRefs.hpp"
+
+#define touchType(type) void touch##type(type*) {}
+#define touchFunction(function) void* touch##function() { return reinterpret_cast<void*>(&::function); }
+
+// Types and functions used by the compiler (at Runtime.kt and ContextUtils.kt)
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+touchType(TypeInfo)
+touchType(ExtendedTypeInfo)
+touchType(InterfaceTableRecord)
+touchType(AssociatedObjectTableRecord)
+
+touchType(ObjHeader)
+touchType(ArrayHeader)
+touchType(FrameOverlay)
+
+touchType(KRefSharedHolder)
+
+touchFunction(AllocInstance)
+touchFunction(AllocArrayInstance)
+touchFunction(InitThreadLocalSingleton)
+touchFunction(InitSingleton)
+touchFunction(InitAndRegisterGlobal)
+touchFunction(UpdateHeapRef)
+touchFunction(UpdateStackRef)
+touchFunction(UpdateReturnRef)
+touchFunction(ZeroHeapRef)
+touchFunction(ZeroArrayRefs)
+
+touchFunction(EnterFrame)
+touchFunction(LeaveFrame)
+touchFunction(SetCurrentFrame)
+touchFunction(CheckCurrentFrame)
+
+touchFunction(MutationCheck)
+touchFunction(CheckLifetimesConstraint)
+touchFunction(FreezeSubgraph)
+touchFunction(CheckGlobalsAccessible)
+
+touchFunction(LookupInterfaceTableRecord)
+touchFunction(IsInstance)
+touchFunction(IsInstanceOfClassFast)
+
+touchFunction(ThrowException)
+touchFunction(Kotlin_getExceptionObject)
+
+touchFunction(AppendToInitializersTail)
+touchFunction(CallInitGlobalPossiblyLock)
+touchFunction(CallInitThreadLocal)
+
+touchFunction(AddTLSRecord)
+touchFunction(LookupTLS)
+
+touchFunction(Kotlin_initRuntimeIfNeeded)
+
+touchFunction(KRefSharedHolder_initLocal)
+touchFunction(KRefSharedHolder_init)
+touchFunction(KRefSharedHolder_dispose)
+touchFunction(KRefSharedHolder_ref)
+
+touchFunction(Kotlin_mm_switchThreadStateNative)
+touchFunction(Kotlin_mm_switchThreadStateRunnable)
+touchFunction(Kotlin_mm_safePointFunctionPrologue)
+touchFunction(Kotlin_mm_safePointWhileLoopBody)
+
+#ifdef __cplusplus
+} // extern "C"
+#endif

kotlin-native/runtime/src/compiler_interface/cpp/CompilerObjCInterface.mm

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+
+#if KONAN_OBJC_INTEROP
+
+#include "ObjCInterop.h"
+#include "ObjCInteropUtils.h"
+#include "ObjCExport.h"
+#include "ObjCExportErrors.h"
+#include "ObjCExportCoroutines.h"
+
+#define touchType(type) void touch##type(type*) {}
+#define touchFunction(function) void* touch##function() { return reinterpret_cast<void*>(&::function); }
+
+// Types and functions used by the compiler (at Runtime.kt and ContextUtils.kt)
+extern "C" {
+
+touchType(WritableTypeInfo)
+touchType(KotlinObjCClassData)
+touchType(KotlinObjCClassInfo)
+touchType(ObjCMethodDescription)
+touchType(ObjCTypeAdapter)
+touchType(ObjCToKotlinMethodAdapter)
+touchType(KotlinToObjCMethodAdapter)
+touchType(TypeInfoObjCExportAddition)
+
+touchType(Block_literal_1)
+touchType(Block_descriptor_1)
+
+NSString* touchNSString() { return [[NSString alloc] init]; }
+
+touchFunction(CreateKotlinObjCClass)
+touchFunction(GetObjCKotlinTypeInfo)
+touchFunction(MissingInitImp)
+
+touchFunction(Kotlin_Interop_DoesObjectConformToProtocol)
+touchFunction(Kotlin_Interop_IsObjectKindOfClass)
+
+touchFunction(Kotlin_ObjCExport_refToLocalObjC)
+touchFunction(Kotlin_ObjCExport_refToRetainedObjC)
+touchFunction(Kotlin_ObjCExport_refFromObjC)
+touchFunction(Kotlin_ObjCExport_CreateRetainedNSStringFromKString)
+touchFunction(Kotlin_ObjCExport_convertUnitToRetained)
+touchFunction(Kotlin_ObjCExport_GetAssociatedObject)
+touchFunction(Kotlin_ObjCExport_AbstractMethodCalled)
+touchFunction(Kotlin_ObjCExport_AbstractClassConstructorCalled)
+touchFunction(Kotlin_ObjCExport_RethrowExceptionAsNSError)
+touchFunction(Kotlin_ObjCExport_WrapExceptionToNSError)
+touchFunction(Kotlin_ObjCExport_NSErrorAsException)
+touchFunction(Kotlin_ObjCExport_AllocInstanceWithAssociatedObject)
+touchFunction(Kotlin_ObjCExport_createContinuationArgument)
+touchFunction(Kotlin_ObjCExport_createUnitContinuationArgument)
+touchFunction(Kotlin_ObjCExport_resumeContinuation)
+touchFunction(Kotlin_ObjCExport_NSIntegerTypeProvider)
+touchFunction(Kotlin_longTypeProvider)
+
+}
+
+#endif // KONAN_OBJC_INTEROP

kotlin-native/runtime/src/main/cpp/Exceptions.h

@@ -1,17 +1,6 @@
 /*
- * Copyright 2010-2017 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.
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
  */
 
 #ifndef RUNTIME_EXCEPTIONS_H
@@ -24,7 +13,7 @@ extern "C" {
 #endif
 
 // Throws arbitrary exception.
-void ThrowException(KRef exception);
+void RUNTIME_NORETURN ThrowException(KRef exception);
 
 void SetKonanTerminateHandler();
 

kotlin-native/runtime/src/main/cpp/MemorySharedRefs.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
  * that can be found in the LICENSE file.
  */
 
@@ -75,4 +75,11 @@ static_assert(
         std::is_trivially_destructible_v<BackRefFromAssociatedObject>,
         "BackRefFromAssociatedObject destructor is not guaranteed to be called.");
 
+extern "C" {
+RUNTIME_NOTHROW void KRefSharedHolder_initLocal(KRefSharedHolder* holder, ObjHeader* obj);
+RUNTIME_NOTHROW void KRefSharedHolder_init(KRefSharedHolder* holder, ObjHeader* obj);
+RUNTIME_NOTHROW void KRefSharedHolder_dispose(const KRefSharedHolder* holder);
+RUNTIME_NOTHROW ObjHeader* KRefSharedHolder_ref(const KRefSharedHolder* holder);
+} // extern "C"
+
 #endif // RUNTIME_MEMORYSHAREDREFS_HPP

kotlin-native/runtime/src/main/cpp/ObjCExport.h

@@ -1,3 +1,8 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+
 #ifndef RUNTIME_OBJCEXPORT_H
 #define RUNTIME_OBJCEXPORT_H
 
@@ -9,9 +14,116 @@
 #import "Types.h"
 #import "Memory.h"
 
-extern "C" id objc_retain(id self);
-extern "C" id objc_retainBlock(id self);
-extern "C" void objc_release(id self);
+extern "C" {
+
+struct ObjCToKotlinMethodAdapter {
+  const char* selector;
+  const char* encoding;
+  IMP imp;
+};
+
+struct KotlinToObjCMethodAdapter {
+  const char* selector;
+  ClassId interfaceId;
+  int itableSize;
+  int itableIndex;
+  int vtableIndex;
+  const void* kotlinImpl;
+};
+
+struct ObjCTypeAdapter {
+  const TypeInfo* kotlinTypeInfo;
+
+  const void * const * kotlinVtable;
+  int kotlinVtableSize;
+
+  const InterfaceTableRecord* kotlinItable;
+  int kotlinItableSize;
+
+  const char* objCName;
+
+  const ObjCToKotlinMethodAdapter* directAdapters;
+  int directAdapterNum;
+
+  const ObjCToKotlinMethodAdapter* classAdapters;
+  int classAdapterNum;
+
+  const ObjCToKotlinMethodAdapter* virtualAdapters;
+  int virtualAdapterNum;
+
+  const KotlinToObjCMethodAdapter* reverseAdapters;
+  int reverseAdapterNum;
+};
+
+struct TypeInfoObjCExportAddition {
+  /*convertReferenceToRetainedObjC*/ void* convertToRetained;
+  Class objCClass;
+  const ObjCTypeAdapter* typeAdapter;
+};
+
+struct WritableTypeInfo {
+  TypeInfoObjCExportAddition objCExport;
+};
+
+struct Block_descriptor_1;
+
+// Based on https://clang.llvm.org/docs/Block-ABI-Apple.html and libclosure source.
+struct Block_literal_1 {
+    void *isa; // initialized to &_NSConcreteStackBlock or &_NSConcreteGlobalBlock
+    int flags;
+    int reserved;
+    void (*invoke)(void *, ...);
+    struct Block_descriptor_1  *descriptor; // IFF (1<<25)
+    // Or:
+    // struct Block_descriptor_1_without_helpers* descriptor // if hasn't (1<<25).
+
+    // imported variables
+};
+
+struct Block_descriptor_1 {
+    unsigned long int reserved;         // NULL
+    unsigned long int size;             // sizeof(struct Block_literal_1)
+
+    // optional helper functions
+    void (*copy_helper)(void *dst, void *src);
+    void (*dispose_helper)(void *src);
+    // required ABI.2010.3.16
+    const char *signature;                         // IFF (1<<30)
+    const void* layout;                            // IFF (1<<31)
+};
+
+struct Block_descriptor_1_without_helpers {
+    unsigned long int reserved;         // NULL
+    unsigned long int size;             // sizeof(struct Block_literal_1)
+
+    // required ABI.2010.3.16
+    const char *signature;                         // IFF (1<<30)
+    const void* layout;                            // IFF (1<<31)
+};
+
+id objc_retain(id self);
+id objc_retainBlock(id self);
+void objc_release(id self);
+
+id Kotlin_ObjCExport_refToObjC(ObjHeader* obj);
+id Kotlin_ObjCExport_refToLocalObjC(ObjHeader* obj);
+id Kotlin_ObjCExport_refToRetainedObjC(ObjHeader* obj);
+id Kotlin_ObjCExport_CreateRetainedNSStringFromKString(ObjHeader* str);
+id Kotlin_ObjCExport_convertUnitToRetained(ObjHeader* unitInstance);
+id Kotlin_ObjCExport_GetAssociatedObject(ObjHeader* obj);
+void Kotlin_ObjCExport_AbstractMethodCalled(id self, SEL selector);
+void Kotlin_ObjCExport_AbstractClassConstructorCalled(id self, const TypeInfo *clazz);
+OBJ_GETTER(Kotlin_ObjCExport_refFromObjC, id obj);
+RUNTIME_NOTHROW OBJ_GETTER(Kotlin_ObjCExport_AllocInstanceWithAssociatedObject,
+                           const TypeInfo* typeInfo, id associatedObject);
+
+id Kotlin_Interop_CreateNSStringFromKString(KRef str);
+OBJ_GETTER(Kotlin_Interop_CreateKStringFromNSString, NSString* str);
+
+/// Utility function that is used to determine NSInteger size in compile time.
+NSInteger Kotlin_ObjCExport_NSIntegerTypeProvider();
+
+} // extern "C"
 
 inline static id GetAssociatedObject(ObjHeader* obj) {
     return (id)obj->GetAssociatedObject();
@@ -32,16 +144,6 @@ inline static OBJ_GETTER(AllocInstanceWithAssociatedObject, const TypeInfo* type
   return result;
 }
 
-extern "C" id Kotlin_ObjCExport_refToObjC(ObjHeader* obj);
-extern "C" id Kotlin_ObjCExport_refToLocalObjC(ObjHeader* obj);
-extern "C" OBJ_GETTER(Kotlin_ObjCExport_refFromObjC, id obj);
-
-extern "C" id Kotlin_Interop_CreateNSStringFromKString(KRef str);
-extern "C" OBJ_GETTER(Kotlin_Interop_CreateKStringFromNSString, NSString* str);
-
-/// Utility function that is used to determine NSInteger size in compile time.
-extern "C" NSInteger Kotlin_ObjCExport_NSIntegerTypeProvider();
-
 #endif // KONAN_OBJC_INTEROP
 
 #endif // RUNTIME_OBJCEXPORT_H

kotlin-native/runtime/src/main/cpp/ObjCExport.mm

@@ -1,17 +1,6 @@
 /*
- * Copyright 2010-2017 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.
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
  */
 
 #import "Types.h"
@@ -61,58 +50,9 @@ inline T* konanAllocArray(size_t length) {
 
 }
 
-struct ObjCToKotlinMethodAdapter {
-  const char* selector;
-  const char* encoding;
-  IMP imp;
-};
-
-struct KotlinToObjCMethodAdapter {
-  const char* selector;
-  ClassId interfaceId;
-  int itableSize;
-  int itableIndex;
-  int vtableIndex;
-  const void* kotlinImpl;
-};
-
-struct ObjCTypeAdapter {
-  const TypeInfo* kotlinTypeInfo;
-
-  const void * const * kotlinVtable;
-  int kotlinVtableSize;
-
-  const InterfaceTableRecord* kotlinItable;
-  int kotlinItableSize;
-
-  const char* objCName;
-
-  const ObjCToKotlinMethodAdapter* directAdapters;
-  int directAdapterNum;
-
-  const ObjCToKotlinMethodAdapter* classAdapters;
-  int classAdapterNum;
-
-  const ObjCToKotlinMethodAdapter* virtualAdapters;
-  int virtualAdapterNum;
-
-  const KotlinToObjCMethodAdapter* reverseAdapters;
-  int reverseAdapterNum;
-};
-
 typedef id (*convertReferenceToRetainedObjC)(ObjHeader* obj);
 typedef OBJ_GETTER((*convertReferenceFromObjC), id obj);
 
-struct TypeInfoObjCExportAddition {
-  /*convertReferenceToRetainedObjC*/ void* convertToRetained;
-  Class objCClass;
-  const ObjCTypeAdapter* typeAdapter;
-};
-
-struct WritableTypeInfo {
-  TypeInfoObjCExportAddition objCExport;
-};
-
 
 static char associatedTypeInfoKey;
 
@@ -454,44 +394,8 @@ static OBJ_GETTER(boxedBooleanToKotlinImp, NSNumber* self, SEL cmd) {
   RETURN_RESULT_OF(Kotlin_boxBoolean, self.boolValue);
 }
 
-struct Block_descriptor_1;
-
-// Based on https://clang.llvm.org/docs/Block-ABI-Apple.html and libclosure source.
-struct Block_literal_1 {
-    void *isa; // initialized to &_NSConcreteStackBlock or &_NSConcreteGlobalBlock
-    int flags;
-    int reserved;
-    void (*invoke)(void *, ...);
-    struct Block_descriptor_1  *descriptor; // IFF (1<<25)
-    // Or:
-    // struct Block_descriptor_1_without_helpers* descriptor // if hasn't (1<<25).
-
-    // imported variables
-};
-
 struct Block_literal_1 exportBlockLiteral;
 
-struct Block_descriptor_1 {
-    unsigned long int reserved;         // NULL
-    unsigned long int size;             // sizeof(struct Block_literal_1)
-
-    // optional helper functions
-    void (*copy_helper)(void *dst, void *src);
-    void (*dispose_helper)(void *src);
-    // required ABI.2010.3.16
-    const char *signature;                         // IFF (1<<30)
-    const void* layout;                            // IFF (1<<31)
-};
-
-struct Block_descriptor_1_without_helpers {
-    unsigned long int reserved;         // NULL
-    unsigned long int size;             // sizeof(struct Block_literal_1)
-
-    // required ABI.2010.3.16
-    const char *signature;                         // IFF (1<<30)
-    const void* layout;                            // IFF (1<<31)
-};
-
 static const char* getBlockEncoding(id block) {
   Block_literal_1* literal = reinterpret_cast<Block_literal_1*>(block);
 

kotlin-native/runtime/src/main/cpp/ObjCExportCoroutines.h

@@ -0,0 +1,10 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+
+#include "Types.h"
+
+extern "C" OBJ_GETTER(Kotlin_ObjCExport_createContinuationArgument, id completion, const TypeInfo** exceptionTypes);
+extern "C" OBJ_GETTER(Kotlin_ObjCExport_createUnitContinuationArgument, id completion, const TypeInfo** exceptionTypes);
+extern "C" void Kotlin_ObjCExport_resumeContinuation(KRef continuation, KRef result, id error);

kotlin-native/runtime/src/main/cpp/ObjCExportErrors.h

@@ -1,10 +1,11 @@
 /*
- * Copyright 2010-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
  * that can be found in the LICENSE file.
  */
 
 #import "Types.h"
 
 extern "C" id Kotlin_ObjCExport_ExceptionAsNSError(KRef exception, const TypeInfo** types);
+extern "C" void Kotlin_ObjCExport_RethrowExceptionAsNSError(KRef exception, id* outError, const TypeInfo** types);
 extern "C" id Kotlin_ObjCExport_WrapExceptionToNSError(KRef exception);
 extern "C" OBJ_GETTER(Kotlin_ObjCExport_NSErrorAsException, id error);

kotlin-native/runtime/src/main/cpp/ObjCInterop.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
  * that can be found in the LICENSE file.
  */
 
@@ -8,6 +8,58 @@
 
 #if KONAN_OBJC_INTEROP
 
+#include <Foundation/NSString.h>
+#include <Foundation/NSException.h>
+#include <objc/objc-exception.h>
+
+#include <objc/objc.h>
+#include <objc/runtime.h>
+#include <objc/message.h>
+
+#include "TypeInfo.h"
+
+extern "C" {
+
+struct KotlinObjCClassData {
+  const TypeInfo* typeInfo;
+  Class objcClass;
+  int32_t bodyOffset;
+};
+
+struct ObjCMethodDescription {
+  void* (*imp)(void*, void*, ...);
+  const char* selector;
+  const char* encoding;
+};
+
+struct KotlinObjCClassInfo {
+  const char* name;
+  int exported;
+
+  const char* superclassName;
+  const char** protocolNames;
+
+  const struct ObjCMethodDescription* instanceMethods;
+  int32_t instanceMethodsNum;
+
+  const struct ObjCMethodDescription* classMethods;
+  int32_t classMethodsNum;
+
+  int32_t* bodyOffset;
+
+  const TypeInfo* typeInfo;
+  const TypeInfo* metaTypeInfo;
+
+  void** createdClass;
+
+  KotlinObjCClassData* (*classDataImp)(void*, void*);
+};
+
+void* CreateKotlinObjCClass(const KotlinObjCClassInfo* info);
+RUNTIME_NOTHROW const TypeInfo* GetObjCKotlinTypeInfo(ObjHeader* obj);
+
+} // extern "C"
+
 const char* Kotlin_ObjCInterop_getUniquePrefix();
 
 #endif // KONAN_OBJC_INTEROP

kotlin-native/runtime/src/main/cpp/ObjCInterop.mm

@@ -1,17 +1,6 @@
 /*
- * Copyright 2010-2017 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.
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
  */
 
 #if KONAN_OBJC_INTEROP
@@ -51,12 +40,6 @@ const char* Kotlin_ObjCInterop_getUniquePrefix() {
 
 extern "C" id objc_msgSendSuper2(struct objc_super *super, SEL op, ...);
 
-struct KotlinObjCClassData {
-  const TypeInfo* typeInfo;
-  Class objcClass;
-  int32_t bodyOffset;
-};
-
 // Acts only as container for the method, not actually applied to any class.
 @protocol HasKotlinObjCClassData
 @required
@@ -179,8 +162,6 @@ Class Kotlin_Interop_getObjCClass(const char* name) {
     return result;
 }
 
-const TypeInfo* GetObjCKotlinTypeInfo(ObjHeader* obj) RUNTIME_NOTHROW;
-
 RUNTIME_NOTHROW const TypeInfo* GetObjCKotlinTypeInfo(ObjHeader* obj) {
     void* objcPtr = obj->GetAssociatedObject();
     RuntimeAssert(objcPtr != nullptr, "");
@@ -223,35 +204,6 @@ static void AddKotlinClassData(bool isClassMethod, Class clazz, void* imp) {
   RuntimeCheck(added, "Unable to add method to Objective-C class");
 }
 
-struct ObjCMethodDescription {
-  void* (*imp)(void*, void*, ...);
-  const char* selector;
-  const char* encoding;
-};
-
-struct KotlinObjCClassInfo {
-  const char* name;
-  int exported;
-
-  const char* superclassName;
-  const char** protocolNames;
-
-  const struct ObjCMethodDescription* instanceMethods;
-  int32_t instanceMethodsNum;
-
-  const struct ObjCMethodDescription* classMethods;
-  int32_t classMethodsNum;
-
-  int32_t* bodyOffset;
-
-  const TypeInfo* typeInfo;
-  const TypeInfo* metaTypeInfo;
-
-  void** createdClass;
-
-  KotlinObjCClassData* (*classDataImp)(void*, void*);
-};
-
 static void AddMethods(Class clazz, const struct ObjCMethodDescription* methods, int32_t methodsNum) {
   for (int32_t i = 0; i < methodsNum; ++i) {
     const struct ObjCMethodDescription* method = &methods[i];

kotlin-native/runtime/src/main/cpp/ObjCInteropUtils.h

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+
+#ifndef RUNTIME_OBJCINTEROPUTILS_H
+#define RUNTIME_OBJCINTEROPUTILS_H
+
+#if KONAN_OBJC_INTEROP
+
+#import <objc/runtime.h>
+#import "Types.h"
+
+extern "C" {
+id MissingInitImp(id self, SEL _cmd);
+KBoolean Kotlin_Interop_DoesObjectConformToProtocol(id obj, void* prot, KBoolean isMeta);
+KBoolean Kotlin_Interop_IsObjectKindOfClass(id obj, void* cls);
+}
+
+#endif // KONAN_OBJC_INTEROP
+
+#endif // RUNTIME_OBJCINTEROPUTILS_H

kotlin-native/runtime/src/main/cpp/ObjCInteropUtils.mm

@@ -1,17 +1,6 @@
 /*
- * Copyright 2010-2017 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.
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
  */
 
 #include "Natives.h"
@@ -23,6 +12,7 @@
 #import <Foundation/NSException.h>
 #import <Foundation/NSString.h>
 #import "Memory.h"
+#import "ObjCInteropUtils.h"
 #import "ObjCInteropUtilsPrivate.h"
 
 namespace {

kotlin-native/runtime/src/main/cpp/ObjCInteropUtilsPrivate.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
  * that can be found in the LICENSE file.
  */
 
@@ -13,6 +13,7 @@
 #import "Types.h"
 #import "Memory.h"
 
+extern "C" id MissingInitImp(id self, SEL _cmd);
 extern "C" id (*Kotlin_Interop_createKotlinObjectHolder_ptr)(KRef any);
 extern "C" KRef (*Kotlin_Interop_unwrapKotlinObjectHolder_ptr)(id holder);
 extern "C" OBJ_GETTER((*Konan_ObjCInterop_getWeakReference_ptr), KRef ref);

kotlin-native/runtime/src/main/cpp/Runtime.cpp

@@ -1,17 +1,6 @@
 /*
- * Copyright 2010-2017 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.
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
  */
 
 #include "Atomic.h"
@@ -41,12 +30,6 @@ using kotlin::internal::FILE_BEING_INITIALIZED;
 using kotlin::internal::FILE_INITIALIZED;
 using kotlin::internal::FILE_FAILED_TO_INITIALIZE;
 
-typedef void (*Initializer)(int initialize, MemoryState* memory);
-struct InitNode {
-  Initializer init;
-  InitNode* next;
-};
-
 namespace {
 
 InitNode* initHeadNode = nullptr;
@@ -209,7 +192,7 @@ void Kotlin_deinitRuntimeCallback(void* argument) {
 
 extern "C" {
 
-void AppendToInitializersTail(InitNode *next) {
+RUNTIME_NOTHROW void AppendToInitializersTail(InitNode *next) {
   // TODO: use RuntimeState.
   if (initHeadNode == nullptr) {
     initHeadNode = next;

kotlin-native/runtime/src/main/cpp/Runtime.h

@@ -1,17 +1,6 @@
 /*
- * Copyright 2010-2017 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.
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
  */
 
 #ifndef RUNTIME_RUNTIME_H
@@ -19,12 +8,16 @@
 
 #include "Porting.h"
 
-struct InitNode;
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+typedef void (*Initializer)(int initialize, MemoryState* memory);
+struct InitNode {
+  Initializer init;
+  InitNode* next;
+};
+
 // For experimental MM, if runtime gets initialized, it will be in the native state after this.
 RUNTIME_NOTHROW void Kotlin_initRuntimeIfNeeded();
 void Kotlin_deinitRuntimeIfNeeded();
@@ -36,7 +29,7 @@ void Kotlin_deinitRuntimeIfNeeded();
 void Kotlin_shutdownRuntime();
 
 // Appends given node to an initializer list.
-void AppendToInitializersTail(struct InitNode*);
+RUNTIME_NOTHROW void AppendToInitializersTail(struct InitNode*);
 
 void CallInitGlobalPossiblyLock(int* state, void (*init)());
 void CallInitThreadLocal(int volatile* globalState, int* localState, void (*init)());

kotlin-native/runtime/src/main/cpp/TypeInfo.h

@@ -1,17 +1,6 @@
 /*
- * Copyright 2010-2017 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.
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
  */
 
 #ifndef RUNTIME_TYPEINFO_H
@@ -27,7 +16,12 @@ struct WritableTypeInfo;
 #endif
 
 struct ObjHeader;
-struct AssociatedObjectTableRecord;
+struct TypeInfo;
+
+struct AssociatedObjectTableRecord {
+  const TypeInfo* key;
+  ObjHeader* (*getAssociatedObjectInstance)(ObjHeader**);
+};
 
 // Type for runtime representation of Konan object.
 // Keep in sync with runtimeTypeMap in RTTIGenerator.

kotlin-native/runtime/src/main/cpp/Types.cpp

@@ -1,17 +1,6 @@
 /*
- * Copyright 2010-2017 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.
+ * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
  */
 
 #include "Types.h"
@@ -73,11 +62,6 @@ OBJ_GETTER(Kotlin_TypeInfo_getRelativeName, KNativePtr typeInfo, KBoolean checkF
   }
 }
 
-struct AssociatedObjectTableRecord {
-  const TypeInfo* key;
-  OBJ_GETTER0((*getAssociatedObjectInstance));
-};
-
 OBJ_GETTER(Kotlin_TypeInfo_findAssociatedObject, KNativePtr typeInfo, KNativePtr key) {
   const AssociatedObjectTableRecord* associatedObjects = reinterpret_cast<const TypeInfo*>(typeInfo)->associatedObjects;
   if (associatedObjects == nullptr) {