[K/N] Move IR-related ObjC interop helpers to a new common module

This is a step towards KT-61248. We need those helpers to be available in non-Native-specific code.
2023-08-23 12:59:18 +02:00
parent 5cb252fe49
commit d1127f1a31
37 changed files with 106 additions and 87 deletions
@@ -77,6 +77,7 @@
 /compiler/ir/ir.ir2cfg/ Mikhail.Glukhikh
 /compiler/ir/ir.psi2ir/ "Kotlin JVM"
 /compiler/ir/ir.tree/ "Kotlin JVM" "Kotlin JS" "Kotlin Native" "Kotlin Wasm"
+/compiler/ir/ir.objcinterop/ "Kotlin Native"
 /compiler/ir/serialization.common/ "Kotlin Native"
 /compiler/ir/serialization.js/ "Kotlin JS"
 /compiler/ir/serialization.jvm/ "Kotlin JVM"
@@ -108,6 +108,7 @@ val irCompilerModules = arrayOf(
    ":compiler:ir.serialization.common",
    ":compiler:ir.serialization.js",
    ":compiler:ir.serialization.jvm",
+    ":compiler:ir.objcinterop",
    ":compiler:ir.backend.common",
    ":compiler:ir.interpreter",
    ":wasm:wasm.ir"
@@ -0,0 +1,4 @@
+## Utilities related to Kotlin/Native interoperability with Objective-C
+
+This module contains helper functions for extracting various information related to Objective-C interoperability
+from IR nodes.
@@ -0,0 +1,19 @@
+plugins {
+    kotlin("jvm")
+    id("jps-compatible")
+}
+
+dependencies {
+    api(project(":core:compiler.common"))
+    api(project(":compiler:ir.tree"))
+
+    implementation(project(":core:compiler.common.native"))
+
+    compileOnly(intellijCore())
+}
+
+sourceSets {
+    "main" { projectDefault() }
+}
+
+optInToIrSymbolInternals()
@@ -1,15 +1,10 @@
 /*
- * Copyright 2010-2018 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.
+ * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
 */

-package org.jetbrains.kotlin.backend.konan
+package org.jetbrains.kotlin.ir.objcinterop

-import org.jetbrains.kotlin.backend.konan.descriptors.getAnnotationStringValue
-import org.jetbrains.kotlin.backend.konan.descriptors.getAnnotationValueOrNull
-import org.jetbrains.kotlin.backend.konan.descriptors.getStringValue
-import org.jetbrains.kotlin.backend.konan.ir.getAnnotationArgumentValue
-import org.jetbrains.kotlin.backend.konan.ir.parentDeclarationsWithSelf
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
 import org.jetbrains.kotlin.incremental.components.NoLookupLocation
@@ -33,16 +28,17 @@ import org.jetbrains.kotlin.resolve.descriptorUtil.parentsWithSelf
 import org.jetbrains.kotlin.types.KotlinType
 import org.jetbrains.kotlin.types.TypeUtils
 import org.jetbrains.kotlin.types.typeUtil.supertypes
+import org.jetbrains.kotlin.utils.atMostOne

-internal val interopPackageName = InteropFqNames.packageName
+internal val interopPackageName = NativeStandardInteropNames.cInteropPackage
 internal val objCObjectFqName = NativeStandardInteropNames.objCObjectClassId.asSingleFqName()
 private val objCClassFqName = interopPackageName.child(Name.identifier("ObjCClass"))
 private val objCProtocolFqName = interopPackageName.child(Name.identifier("ObjCProtocol"))
-internal val externalObjCClassFqName = NativeStandardInteropNames.externalObjCClassClassId.asSingleFqName()
-internal val objCDirectFqName = NativeStandardInteropNames.objCDirectClassId.asSingleFqName()
-internal val objCMethodFqName = NativeStandardInteropNames.objCMethodClassId.asSingleFqName()
-internal val objCConstructorFqName = NativeStandardInteropNames.objCConstructorClassId.asSingleFqName()
-internal val objCFactoryFqName = NativeStandardInteropNames.objCFactoryClassId.asSingleFqName()
+val externalObjCClassFqName = NativeStandardInteropNames.externalObjCClassClassId.asSingleFqName()
+val objCDirectFqName = NativeStandardInteropNames.objCDirectClassId.asSingleFqName()
+val objCMethodFqName = NativeStandardInteropNames.objCMethodClassId.asSingleFqName()
+val objCConstructorFqName = NativeStandardInteropNames.objCConstructorClassId.asSingleFqName()
+val objCFactoryFqName = NativeStandardInteropNames.objCFactoryClassId.asSingleFqName()

 fun ClassDescriptor.isObjCClass(): Boolean =
                this.containingDeclaration.fqNameSafe != interopPackageName &&
@@ -57,7 +53,7 @@ private fun IrClass.selfOrAnySuperClass(pred: (IrClass) -> Boolean): Boolean {
    return superTypes.any { it.classOrNull!!.owner.selfOrAnySuperClass(pred) }
 }

-internal fun IrClass.isObjCClass() = this.packageFqName != interopPackageName &&
+fun IrClass.isObjCClass() = this.packageFqName != interopPackageName &&
        selfOrAnySuperClass { it.hasEqualFqName(objCObjectFqName) }

 fun ClassDescriptor.isExternalObjCClass(): Boolean = this.isObjCClass() &&
@@ -102,14 +98,14 @@ fun IrFunction.isObjCClassMethod() =
 fun FunctionDescriptor.isExternalObjCClassMethod() =
        this.containingDeclaration.let { it is ClassDescriptor && it.isExternalObjCClass() }

-internal fun IrFunction.isExternalObjCClassMethod() =
+fun IrFunction.isExternalObjCClassMethod() =
    this.parent.let {it is IrClass && it.isExternalObjCClass()}

 // Special case: methods from Kotlin Objective-C classes can be called virtually from bridges.
 fun FunctionDescriptor.canObjCClassMethodBeCalledVirtually(overriddenDescriptor: FunctionDescriptor) =
        overriddenDescriptor.isOverridable && this.kind.isReal && !this.isExternalObjCClassMethod()

-internal fun IrFunction.canObjCClassMethodBeCalledVirtually(overridden: IrFunction) =
+fun IrFunction.canObjCClassMethodBeCalledVirtually(overridden: IrFunction) =
    overridden.isOverridable && !this.isFakeOverride && !this.isExternalObjCClassMethod()

 fun ClassDescriptor.isKotlinObjCClass(): Boolean = this.isObjCClass() && !this.isExternalObjCClass()
@@ -122,10 +118,10 @@ private fun FunctionDescriptor.decodeObjCMethodAnnotation(): ObjCMethodInfo? {

    val methodInfo = this.annotations.findAnnotation(objCMethodFqName)?.let {
        ObjCMethodInfo(
-                selector = it.getStringValue("selector"),
-                encoding = it.getStringValue("encoding"),
+                selector = it.getAnnotationStringValue("selector"),
+                encoding = it.getAnnotationStringValue("encoding"),
                isStret = it.getArgumentValueOrNull<Boolean>("isStret") ?: false,
-                directSymbol = this.annotations.findAnnotation(objCDirectFqName)?.getStringValue("symbol"),
+                directSymbol = this.annotations.findAnnotation(objCDirectFqName)?.getAnnotationStringValue("symbol"),
        )
    }

@@ -28,6 +28,7 @@ import org.jetbrains.kotlin.ir.types.*
 import org.jetbrains.kotlin.ir.types.impl.IrSimpleTypeImpl
 import org.jetbrains.kotlin.ir.types.impl.makeTypeProjection
 import org.jetbrains.kotlin.ir.visitors.IrElementVisitor
+import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.name.SpecialNames
@@ -365,11 +366,38 @@ fun IrAnnotationContainer.hasAnnotation(name: FqName) =
        it.symbol.owner.parentAsClass.hasEqualFqName(name)
    }

+fun IrAnnotationContainer.hasAnnotation(classId: ClassId) =
+    annotations.any { it.symbol.owner.parentAsClass.classId == classId }
+
 fun IrAnnotationContainer.hasAnnotation(symbol: IrClassSymbol) =
    annotations.any {
        it.symbol.owner.parentAsClass.symbol == symbol
    }

+fun IrConstructorCall.getAnnotationStringValue() = (getValueArgument(0) as? IrConst<*>)?.value as String?
+
+fun IrConstructorCall.getAnnotationStringValue(name: String): String {
+    val parameter = symbol.owner.valueParameters.single { it.name.asString() == name }
+    return (getValueArgument(parameter.index) as IrConst<*>).value as String
+}
+
+inline fun <reified T> IrConstructorCall.getAnnotationValueOrNull(name: String): T? {
+    val parameter = symbol.owner.valueParameters.atMostOne { it.name.asString() == name }
+    return parameter?.let { getValueArgument(it.index)?.let { (it as IrConst<*>).value as T } }
+}
+
+inline fun <reified T> IrDeclaration.getAnnotationArgumentValue(fqName: FqName, argumentName: String): T? {
+    val annotation = this.annotations.findAnnotation(fqName) ?: return null
+    for (index in 0 until annotation.valueArgumentsCount) {
+        val parameter = annotation.symbol.owner.valueParameters[index]
+        if (parameter.name == Name.identifier(argumentName)) {
+            val actual = annotation.getValueArgument(index) as? IrConst<*> ?: return null
+            return actual.value as T
+        }
+    }
+    return null
+}
+
 fun IrClass.getAnnotationRetention(): KotlinRetention? {
    val retentionArgument =
        getAnnotation(StandardNames.FqNames.retention)?.getValueArgument(StandardClassIds.Annotations.ParameterNames.retentionValue)
@@ -590,6 +618,9 @@ val IrDeclaration.parentClassOrNull: IrClass?
        }
    }

+val IrDeclaration.parentDeclarationsWithSelf: Sequence<IrDeclaration>
+    get() = generateSequence(this) { it.parent as? IrDeclaration }
+
 val IrFunction.allTypeParameters: List<IrTypeParameter>
    get() = if (this is IrConstructor)
        parentAsClass.typeParameters + typeParameters
@@ -162,6 +162,7 @@ dependencies {
    compilerApi project(":core:compiler.common.native")
    compilerApi project(":compiler:ir.tree")
    compilerApi project(":compiler:ir.backend.common")
+    compilerApi project(":compiler:ir.objcinterop")
    compilerApi project(":compiler:util")
    compilerApi project(":native:frontend.native")
    compilerApi project(":compiler:cli-common")
@@ -1 +1 @@
-org.jetbrains.kotlin.backend.konan.ObjCOverridabilityCondition
+org.jetbrains.kotlin.ir.objcinterop.ObjCOverridabilityCondition
@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.backend.konan

 import org.jetbrains.kotlin.ir.declarations.IrClass
+import org.jetbrains.kotlin.ir.objcinterop.isExternalObjCClass

 /**
 * We don't need to generate RTTI in some cases, e.g. Objective-C external classes.
@@ -6,7 +6,7 @@ import org.jetbrains.kotlin.backend.common.lower.irNot
 import org.jetbrains.kotlin.backend.konan.*
 import org.jetbrains.kotlin.backend.konan.ir.KonanSymbols
 import org.jetbrains.kotlin.backend.konan.ir.buildSimpleAnnotation
-import org.jetbrains.kotlin.backend.konan.ir.getAnnotationArgumentValue
+import org.jetbrains.kotlin.ir.util.getAnnotationArgumentValue
 import org.jetbrains.kotlin.backend.konan.ir.konanLibrary
 import org.jetbrains.kotlin.backend.konan.lower.FunctionReferenceLowering
 import org.jetbrains.kotlin.descriptors.ClassKind
@@ -22,6 +22,8 @@ import org.jetbrains.kotlin.ir.declarations.impl.*
 import org.jetbrains.kotlin.ir.expressions.*
 import org.jetbrains.kotlin.ir.expressions.impl.IrConstImpl
 import org.jetbrains.kotlin.ir.expressions.impl.IrFunctionReferenceImpl
+import org.jetbrains.kotlin.ir.objcinterop.getObjCMethodInfo
+import org.jetbrains.kotlin.ir.objcinterop.isObjCMetaClass
 import org.jetbrains.kotlin.ir.symbols.IrClassSymbol
 import org.jetbrains.kotlin.ir.symbols.impl.*
 import org.jetbrains.kotlin.ir.types.*
@@ -13,10 +13,7 @@ import org.jetbrains.kotlin.ir.IrBuiltIns
 import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.types.*
-import org.jetbrains.kotlin.ir.util.fqNameForIrSerialization
-import org.jetbrains.kotlin.ir.util.hasAnnotation
-import org.jetbrains.kotlin.ir.util.isEnumClass
-import org.jetbrains.kotlin.ir.util.isUnsigned
+import org.jetbrains.kotlin.ir.util.*
 import org.jetbrains.kotlin.konan.target.KonanTarget
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.name.Name
@@ -23,6 +23,7 @@ import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.expressions.IrClassReference
 import org.jetbrains.kotlin.ir.expressions.IrConst
+import org.jetbrains.kotlin.ir.objcinterop.*
 import org.jetbrains.kotlin.ir.symbols.IrFieldSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.ir.util.*
@@ -5,7 +5,6 @@

 package org.jetbrains.kotlin.backend.konan.descriptors

-import org.jetbrains.kotlin.utils.atMostOne
 import org.jetbrains.kotlin.backend.konan.*
 import org.jetbrains.kotlin.backend.konan.ir.getSuperClassNotAny
 import org.jetbrains.kotlin.backend.konan.ir.getSuperInterfaces
@@ -17,8 +16,6 @@ import org.jetbrains.kotlin.ir.declarations.IrClass
 import org.jetbrains.kotlin.ir.declarations.IrConstructor
 import org.jetbrains.kotlin.ir.declarations.IrFunction
 import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
-import org.jetbrains.kotlin.ir.expressions.IrConst
-import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.symbols.IrClassifierSymbol
 import org.jetbrains.kotlin.ir.symbols.IrFunctionSymbol
 import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
@@ -249,18 +246,6 @@ internal fun IrClass.isFrozen(context: Context): Boolean {
    }
 }

-fun IrConstructorCall.getAnnotationStringValue() = (getValueArgument(0) as? IrConst<*>)?.value as String?
-
-fun IrConstructorCall.getAnnotationStringValue(name: String): String {
-    val parameter = symbol.owner.valueParameters.single { it.name.asString() == name }
-    return (getValueArgument(parameter.index) as IrConst<*>).value as String
-}
-
-inline fun <reified T> IrConstructorCall.getAnnotationValueOrNull(name: String): T? {
-    val parameter = symbol.owner.valueParameters.atMostOne { it.name.asString() == name }
-    return parameter?.let { getValueArgument(it.index)?.let { (it as IrConst<*>).value as T } }
-}
-
 fun IrFunction.externalSymbolOrThrow(): String? {
    annotations.findAnnotation(RuntimeNames.symbolNameAnnotation)?.let { return it.getAnnotationStringValue() }

@@ -5,11 +5,7 @@

 package org.jetbrains.kotlin.backend.konan.descriptors

-import org.jetbrains.kotlin.utils.atMostOne
-import org.jetbrains.kotlin.backend.konan.RuntimeNames
-import org.jetbrains.kotlin.builtins.konan.KonanBuiltIns
 import org.jetbrains.kotlin.descriptors.*
-import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
 import org.jetbrains.kotlin.descriptors.impl.ModuleDescriptorImpl
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.resolve.OverridingUtil
@@ -96,15 +92,6 @@ internal fun DeclarationDescriptor.allContainingDeclarations(): List<Declaration
    return list
 }

-fun AnnotationDescriptor.getStringValueOrNull(name: String): String? {
-    val constantValue = this.allValueArguments.entries.atMostOne {
-        it.key.asString() == name
-    }?.value
-    return constantValue?.value as String?
-}
-
-fun AnnotationDescriptor.getStringValue(name: String): String = this.getStringValueOrNull(name)!!
-
 private fun getPackagesFqNames(module: ModuleDescriptor): Set<FqName> {
    val result = mutableSetOf<FqName>()
    val packageFragmentProvider = (module as? ModuleDescriptorImpl)?.packageFragmentProviderForModuleContentWithoutDependencies
@@ -5,13 +5,10 @@

 package org.jetbrains.kotlin.backend.konan.ir

-import org.jetbrains.kotlin.backend.konan.*
-import org.jetbrains.kotlin.backend.konan.llvm.llvmSymbolOrigin
 import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
-import org.jetbrains.kotlin.ir.declarations.*
+import org.jetbrains.kotlin.ir.objcinterop.isObjCObjectType
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.ir.types.toKotlinType
-import org.jetbrains.kotlin.ir.util.getPackageFragment

 // This file contains some IR utilities which actually use descriptors.
 // TODO: port this code to IR.
@@ -9,7 +9,7 @@ import org.jetbrains.kotlin.backend.konan.BinaryType
 import org.jetbrains.kotlin.backend.konan.KonanBackendContext
 import org.jetbrains.kotlin.backend.konan.KonanFqNames
 import org.jetbrains.kotlin.backend.konan.computeBinaryType
-import org.jetbrains.kotlin.backend.konan.descriptors.getAnnotationStringValue
+import org.jetbrains.kotlin.ir.util.getAnnotationStringValue
 import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
 import org.jetbrains.kotlin.descriptors.Modality
 import org.jetbrains.kotlin.ir.UNDEFINED_OFFSET
@@ -26,8 +26,6 @@ import org.jetbrains.kotlin.ir.util.*
 import org.jetbrains.kotlin.library.KotlinLibrary
 import org.jetbrains.kotlin.library.metadata.DeserializedKlibModuleOrigin
 import org.jetbrains.kotlin.library.metadata.klibModuleOrigin
-import org.jetbrains.kotlin.name.FqName
-import org.jetbrains.kotlin.name.Name

 private fun IrClass.isClassTypeWithSignature(signature: IdSignature.CommonSignature): Boolean {
    return signature == symbol.signature
@@ -48,24 +46,9 @@ fun IrClass.getSuperInterfaces() = this.superClasses.map { it.owner }.filter { i

 fun IrClass.isSpecialClassWithNoSupertypes() = this.isAny() || this.isNothing()

-inline fun <reified T> IrDeclaration.getAnnotationArgumentValue(fqName: FqName, argumentName: String): T? {
-    val annotation = this.annotations.findAnnotation(fqName) ?: return null
-    for (index in 0 until annotation.valueArgumentsCount) {
-        val parameter = annotation.symbol.owner.valueParameters[index]
-        if (parameter.name == Name.identifier(argumentName)) {
-            val actual = annotation.getValueArgument(index) as? IrConst<*> ?: return null
-            return actual.value as T
-        }
-    }
-    return null
-}
-
 fun IrValueParameter.isInlineParameter(): Boolean =
    !this.isNoinline && (this.type.isFunction() || this.type.isSuspendFunction()) && !this.type.isMarkedNullable()

-val IrDeclaration.parentDeclarationsWithSelf: Sequence<IrDeclaration>
-    get() = generateSequence(this, { it.parent as? IrDeclaration })
-
 fun buildSimpleAnnotation(irBuiltIns: IrBuiltIns, startOffset: Int, endOffset: Int,
                          annotationClass: IrClass, vararg args: String): IrConstructorCall {
    val constructor = annotationClass.constructors.let {
@@ -10,11 +10,11 @@ import org.jetbrains.kotlin.backend.common.serialization.mangle.MangleConstant
 import org.jetbrains.kotlin.backend.common.serialization.mangle.SpecialDeclarationType
 import org.jetbrains.kotlin.backend.konan.RuntimeNames
 import org.jetbrains.kotlin.backend.konan.descriptors.externalSymbolOrThrow
-import org.jetbrains.kotlin.backend.konan.descriptors.getAnnotationStringValue
+import org.jetbrains.kotlin.ir.util.getAnnotationStringValue
 import org.jetbrains.kotlin.backend.konan.descriptors.isAbstract
 import org.jetbrains.kotlin.backend.konan.ir.isUnit
-import org.jetbrains.kotlin.backend.konan.isExternalObjCClass
-import org.jetbrains.kotlin.backend.konan.isKotlinObjCClass
+import org.jetbrains.kotlin.ir.objcinterop.isExternalObjCClass
+import org.jetbrains.kotlin.ir.objcinterop.isKotlinObjCClass
 import org.jetbrains.kotlin.backend.konan.serialization.AbstractKonanIrMangler
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.util.findAnnotation
@@ -18,6 +18,7 @@ import org.jetbrains.kotlin.backend.konan.llvm.objc.*
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.ir.UNDEFINED_OFFSET
 import org.jetbrains.kotlin.ir.declarations.*
+import org.jetbrains.kotlin.ir.objcinterop.*
 import org.jetbrains.kotlin.ir.util.*
 import org.jetbrains.kotlin.konan.ForeignExceptionMode
 import org.jetbrains.kotlin.konan.target.CompilerOutputKind
@@ -5,7 +5,7 @@ import llvm.*
 import org.jetbrains.kotlin.backend.konan.KonanFqNames
 import org.jetbrains.kotlin.backend.konan.MemoryModel
 import org.jetbrains.kotlin.backend.konan.RuntimeNames
-import org.jetbrains.kotlin.backend.konan.descriptors.getAnnotationStringValue
+import org.jetbrains.kotlin.ir.util.getAnnotationStringValue
 import org.jetbrains.kotlin.backend.konan.descriptors.isConstantConstructorIntrinsic
 import org.jetbrains.kotlin.backend.konan.descriptors.isTypedIntrinsic
 import org.jetbrains.kotlin.backend.konan.llvm.objc.genObjCSelector
@@ -30,6 +30,7 @@ import org.jetbrains.kotlin.ir.expressions.*
 import org.jetbrains.kotlin.ir.symbols.IrFunctionSymbol
 import org.jetbrains.kotlin.ir.types.*
 import org.jetbrains.kotlin.ir.util.*
+import org.jetbrains.kotlin.ir.objcinterop.*
 import org.jetbrains.kotlin.ir.visitors.IrElementVisitorVoid
 import org.jetbrains.kotlin.ir.visitors.acceptChildrenVoid
 import org.jetbrains.kotlin.ir.visitors.acceptVoid
@@ -8,11 +8,12 @@ package org.jetbrains.kotlin.backend.konan.llvm
 import llvm.LLVMLinkage
 import llvm.LLVMValueRef
 import org.jetbrains.kotlin.backend.konan.*
-import org.jetbrains.kotlin.backend.konan.descriptors.getAnnotationStringValue
+import org.jetbrains.kotlin.ir.util.getAnnotationStringValue
 import org.jetbrains.kotlin.backend.konan.ir.*
 import org.jetbrains.kotlin.ir.declarations.IrClass
 import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
 import org.jetbrains.kotlin.ir.util.*
+import org.jetbrains.kotlin.ir.objcinterop.*

 internal class KotlinObjCClassInfoGenerator(override val generationState: NativeGenerationState) : ContextUtils {
    fun generate(irClass: IrClass) {
@@ -19,6 +19,7 @@ import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.symbols.IrFieldSymbol
 import org.jetbrains.kotlin.ir.util.*
+import org.jetbrains.kotlin.ir.objcinterop.*
 import org.jetbrains.kotlin.ir.visitors.IrElementVisitorVoid
 import org.jetbrains.kotlin.ir.visitors.acceptChildrenVoid
 import org.jetbrains.kotlin.library.KotlinLibrary
@@ -15,6 +15,7 @@ import org.jetbrains.kotlin.backend.konan.lower.getObjectClassInstanceFunction
 import org.jetbrains.kotlin.builtins.PrimitiveType
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.types.*
+import org.jetbrains.kotlin.ir.objcinterop.*
 import org.jetbrains.kotlin.ir.util.*

 internal class RTTIGenerator(
@@ -5,7 +5,7 @@

 package org.jetbrains.kotlin.backend.konan.llvm

-import org.jetbrains.kotlin.backend.konan.descriptors.getAnnotationStringValue
+import org.jetbrains.kotlin.ir.util.getAnnotationStringValue
 import org.jetbrains.kotlin.ir.declarations.IrFunction
 import org.jetbrains.kotlin.ir.util.findAnnotation
 import org.jetbrains.kotlin.konan.target.KonanTarget
@@ -10,7 +10,7 @@ import org.jetbrains.kotlin.backend.common.serialization.SerializedKlibFingerpri
 import org.jetbrains.kotlin.backend.konan.DECLARATION_ORIGIN_FUNCTION_CLASS
 import org.jetbrains.kotlin.backend.konan.NativeGenerationState
 import org.jetbrains.kotlin.backend.konan.KonanFqNames
-import org.jetbrains.kotlin.backend.konan.isExternalObjCClass
+import org.jetbrains.kotlin.ir.objcinterop.isExternalObjCClass
 import org.jetbrains.kotlin.backend.konan.isFunctionInterfaceFile
 import org.jetbrains.kotlin.backend.konan.serialization.KonanManglerIr
 import org.jetbrains.kotlin.backend.konan.serialization.KonanPartialModuleDeserializer
@@ -7,7 +7,7 @@ package org.jetbrains.kotlin.backend.konan.lower
 import org.jetbrains.kotlin.backend.konan.PrimitiveBinaryType
 import org.jetbrains.kotlin.backend.konan.RuntimeNames
 import org.jetbrains.kotlin.backend.konan.cgen.*
-import org.jetbrains.kotlin.backend.konan.descriptors.getAnnotationStringValue
+import org.jetbrains.kotlin.ir.util.getAnnotationStringValue
 import org.jetbrains.kotlin.backend.konan.ir.KonanSymbols
 import org.jetbrains.kotlin.backend.konan.llvm.IntrinsicType
 import org.jetbrains.kotlin.ir.IrBuiltIns
@@ -32,6 +32,7 @@ import org.jetbrains.kotlin.ir.declarations.impl.IrFunctionImpl
 import org.jetbrains.kotlin.ir.declarations.impl.IrValueParameterImpl
 import org.jetbrains.kotlin.ir.expressions.*
 import org.jetbrains.kotlin.ir.expressions.impl.*
+import org.jetbrains.kotlin.ir.objcinterop.*
 import org.jetbrains.kotlin.ir.util.toIrConst
 import org.jetbrains.kotlin.ir.symbols.IrClassSymbol
 import org.jetbrains.kotlin.ir.symbols.IrFunctionSymbol
@@ -16,12 +16,12 @@ import org.jetbrains.kotlin.backend.konan.descriptors.synthesizedName
 import org.jetbrains.kotlin.backend.konan.ir.buildSimpleAnnotation
 import org.jetbrains.kotlin.backend.konan.ir.isAny
 import org.jetbrains.kotlin.backend.konan.ir.isUnit
-import org.jetbrains.kotlin.backend.konan.isObjCClass
 import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
 import org.jetbrains.kotlin.ir.builders.*
 import org.jetbrains.kotlin.ir.builders.declarations.*
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.expressions.*
+import org.jetbrains.kotlin.ir.objcinterop.*
 import org.jetbrains.kotlin.ir.util.*
 import org.jetbrains.kotlin.ir.util.irCall

@@ -7,7 +7,7 @@ package org.jetbrains.kotlin.backend.konan.lower

 import org.jetbrains.kotlin.backend.konan.KonanBackendContext
 import org.jetbrains.kotlin.backend.konan.ir.getSuperClassNotAny
-import org.jetbrains.kotlin.backend.konan.isObjCClass
+import org.jetbrains.kotlin.ir.objcinterop.isObjCClass
 import org.jetbrains.kotlin.backend.konan.llvm.computeFullName
 import org.jetbrains.kotlin.backend.konan.reportCompilationError
 import org.jetbrains.kotlin.ir.IrElement
@@ -26,6 +26,7 @@ import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.expressions.*
+import org.jetbrains.kotlin.ir.objcinterop.*
 import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
 import org.jetbrains.kotlin.ir.symbols.IrTypeParameterSymbol
 import org.jetbrains.kotlin.ir.types.*
@@ -8,7 +8,7 @@ package org.jetbrains.kotlin.backend.konan.lower
 import org.jetbrains.kotlin.backend.common.CommonBackendContext
 import org.jetbrains.kotlin.backend.common.FileLoweringPass
 import org.jetbrains.kotlin.backend.common.lower.*
-import org.jetbrains.kotlin.backend.konan.isObjCForwardDeclaration
+import org.jetbrains.kotlin.ir.objcinterop.isObjCForwardDeclaration
 import org.jetbrains.kotlin.ir.builders.*
 import org.jetbrains.kotlin.ir.declarations.IrFile
 import org.jetbrains.kotlin.ir.expressions.IrExpression
@@ -14,6 +14,7 @@ import org.jetbrains.kotlin.builtins.KotlinBuiltIns.isAny
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
 import org.jetbrains.kotlin.descriptors.annotations.Annotations
+import org.jetbrains.kotlin.ir.objcinterop.*
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.resolve.constants.ArrayValue
 import org.jetbrains.kotlin.resolve.constants.KClassValue
@@ -13,6 +13,7 @@ import org.jetbrains.kotlin.backend.konan.descriptors.isInterface
 import org.jetbrains.kotlin.builtins.*
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.incremental.components.NoLookupLocation
+import org.jetbrains.kotlin.ir.objcinterop.*
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.resolve.DataClassResolver
 import org.jetbrains.kotlin.resolve.deprecation.DeprecationInfo
@@ -21,6 +21,7 @@ import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.expressions.*
+import org.jetbrains.kotlin.ir.objcinterop.*
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.ir.types.getClass
 import org.jetbrains.kotlin.ir.types.isNothing
@@ -13,6 +13,7 @@ import org.jetbrains.kotlin.backend.konan.*
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
 import org.jetbrains.kotlin.ir.declarations.*
+import org.jetbrains.kotlin.ir.objcinterop.*
 import org.jetbrains.kotlin.ir.types.getClass
 import org.jetbrains.kotlin.ir.util.hasAnnotation

@@ -64,6 +64,7 @@ include ":benchmarks",
        ":compiler:ir.tree:tree-generator",
        ":compiler:ir.psi2ir",
        ":compiler:ir.ir2cfg",
+        ":compiler:ir.objcinterop",
        ":compiler:ir.backend.common",
        ":compiler:ir.serialization.common",
        ":compiler:ir.serialization.jvm",
@@ -672,6 +673,7 @@ project(':compiler:ir.tree').projectDir = "$rootDir/compiler/ir/ir.tree" as File
 project(':compiler:ir.tree:tree-generator').projectDir = "$rootDir/compiler/ir/ir.tree/tree-generator" as File
 project(':compiler:ir.psi2ir').projectDir = "$rootDir/compiler/ir/ir.psi2ir" as File
 project(':compiler:ir.ir2cfg').projectDir = "$rootDir/compiler/ir/ir.ir2cfg" as File
+project(':compiler:ir.objcinterop').projectDir = "$rootDir/compiler/ir/ir.objcinterop" as File
 project(':compiler:ir.backend.common').projectDir = "$rootDir/compiler/ir/backend.common" as File
 project(':compiler:backend.js').projectDir = "$rootDir/compiler/ir/backend.js" as File
 project(':compiler:backend.wasm').projectDir = "$rootDir/compiler/ir/backend.wasm" as File