[K/N] Implement frontend checkers for usages forward declaration type

Forward declaration type doesn't exist in runtime. This restricts
its possible usages.

^KT-59764

native/frontend/build.gradle.kts

@@ -6,6 +6,7 @@ plugins {
 dependencies {
     compileOnly(project(":compiler:frontend"))
     compileOnly(project(":compiler:frontend.java"))
+    compileOnly(project(":core:compiler.common.native"))
     compileOnly(intellijCore())
     api(project(":native:kotlin-native-utils"))
 }

native/frontend/src/org/jetbrains/kotlin/descriptors/konan/utils.kt

@@ -5,10 +5,15 @@
 
 package org.jetbrains.kotlin.descriptors.konan
 
+import org.jetbrains.kotlin.descriptors.ClassDescriptor
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
+import org.jetbrains.kotlin.descriptors.PackageFragmentDescriptor
 import org.jetbrains.kotlin.konan.library.KONAN_STDLIB_NAME
+import org.jetbrains.kotlin.name.NativeForwardDeclarationKind
 import org.jetbrains.kotlin.name.Name
 
 val NATIVE_STDLIB_MODULE_NAME = Name.special("<$KONAN_STDLIB_NAME>")
 
 fun ModuleDescriptor.isNativeStdlib() = name == NATIVE_STDLIB_MODULE_NAME
+fun ClassDescriptor.getForwardDeclarationKindOrNull() =
+    NativeForwardDeclarationKind.packageFqNameToKind[(containingDeclaration as? PackageFragmentDescriptor)?.fqName]

native/frontend/src/org/jetbrains/kotlin/resolve/konan/diagnostics/DefaultErrorMessagesNative.kt

@@ -69,6 +69,27 @@ private val DIAGNOSTIC_FACTORY_TO_RENDERER by lazy {
             ErrorsNative.SUBTYPE_OF_HIDDEN_FROM_OBJC,
             "Only @HiddenFromObjC declaration can be a subtype of @HiddenFromObjC declaration"
         )
+
+        put(
+            ErrorsNative.CANNOT_CHECK_FOR_FORWARD_DECLARATION,
+            "Cannot check for forward declaration: ''{0}''",
+            Renderers.RENDER_TYPE
+        )
+        put(ErrorsNative.UNCHECKED_CAST_TO_FORWARD_DECLARATION,
+            "Unchecked cast to forward declaration: ''{0}'' to ''{1}''",
+            Renderers.RENDER_TYPE,
+            Renderers.RENDER_TYPE
+        )
+        put(
+            ErrorsNative.FORWARD_DECLARATION_AS_REIFIED_TYPE_ARGUMENT,
+            "Cannot pass forward declaration ''{0}'' for reified type parameter",
+            Renderers.RENDER_TYPE
+        )
+        put(
+            ErrorsNative.FORWARD_DECLARATION_AS_CLASS_LITERAL,
+            "Can't refer to forward declaration ''{0}'' from class literal",
+            Renderers.RENDER_TYPE
+        )
     }
 }
 

native/frontend/src/org/jetbrains/kotlin/resolve/konan/diagnostics/ErrorsNative.kt

@@ -12,6 +12,7 @@ import org.jetbrains.kotlin.diagnostics.*
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.psi.KtDeclaration
 import org.jetbrains.kotlin.psi.KtElement
+import org.jetbrains.kotlin.types.KotlinType
 
 object ErrorsNative {
     @JvmField
@@ -60,6 +61,14 @@ object ErrorsNative {
     val INVALID_REFINES_IN_SWIFT_TARGETS = DiagnosticFactory0.create<KtElement>(Severity.ERROR)
     @JvmField
     val SUBTYPE_OF_HIDDEN_FROM_OBJC = DiagnosticFactory0.create<KtElement>(Severity.ERROR)
+    @JvmField
+    val CANNOT_CHECK_FOR_FORWARD_DECLARATION = DiagnosticFactory1.create<PsiElement, KotlinType>(Severity.ERROR)
+    @JvmField
+    val UNCHECKED_CAST_TO_FORWARD_DECLARATION = DiagnosticFactory2.create<PsiElement, KotlinType, KotlinType>(Severity.WARNING)
+    @JvmField
+    val FORWARD_DECLARATION_AS_REIFIED_TYPE_ARGUMENT = DiagnosticFactory1.create<PsiElement, KotlinType>(Severity.ERROR)
+    @JvmField
+    val FORWARD_DECLARATION_AS_CLASS_LITERAL = DiagnosticFactory1.create<PsiElement, KotlinType>(Severity.ERROR)
 
     init {
         Errors.Initializer.initializeFactoryNames(ErrorsNative::class.java)

native/frontend/src/org/jetbrains/kotlin/resolve/konan/diagnostics/NativeForwardDeclarationRttiChecker.kt

@@ -0,0 +1,56 @@
+/*
+ * 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.resolve.konan.diagnostics
+
+import com.intellij.psi.PsiElement
+import org.jetbrains.kotlin.descriptors.ClassDescriptor
+import org.jetbrains.kotlin.descriptors.konan.getForwardDeclarationKindOrNull
+import org.jetbrains.kotlin.psi.KtClassLiteralExpression
+import org.jetbrains.kotlin.resolve.BindingTrace
+import org.jetbrains.kotlin.resolve.calls.checkers.RttiExpressionChecker
+import org.jetbrains.kotlin.resolve.calls.checkers.RttiExpressionInformation
+import org.jetbrains.kotlin.resolve.calls.checkers.RttiOperation
+import org.jetbrains.kotlin.resolve.calls.context.ResolutionContext
+import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameSafe
+import org.jetbrains.kotlin.resolve.descriptorUtil.getAllSuperClassifiers
+import org.jetbrains.kotlin.types.KotlinType
+import org.jetbrains.kotlin.types.expressions.ClassLiteralChecker
+
+class NativeForwardDeclarationRttiChecker : RttiExpressionChecker, ClassLiteralChecker {
+    override fun check(rttiInformation: RttiExpressionInformation, reportOn: PsiElement, trace: BindingTrace) {
+        val sourceType = rttiInformation.sourceType
+        val targetType = rttiInformation.targetType
+        val targetDescriptor = targetType?.constructor?.declarationDescriptor
+        if (sourceType != null && targetDescriptor is ClassDescriptor) {
+            val kind = targetDescriptor.getForwardDeclarationKindOrNull() ?: return
+            when (rttiInformation.operation) {
+                RttiOperation.IS,
+                RttiOperation.NOT_IS -> trace.report(ErrorsNative.CANNOT_CHECK_FOR_FORWARD_DECLARATION.on(reportOn, targetType))
+
+                RttiOperation.AS,
+                RttiOperation.SAFE_AS -> {
+                    // It can make sense to avoid warning if sourceClass is subclass of class with such property,
+                    // but for the sake of simplicity, we don't do it now.
+                    val sourceDescriptor = sourceType.constructor.declarationDescriptor as? ClassDescriptor
+                    val isAllowedCast = sourceDescriptor != null &&
+                            sourceDescriptor.name == targetDescriptor.name &&
+                            sourceDescriptor.kind == kind.classKind &&
+                            sourceDescriptor.getAllSuperClassifiers().any { it.fqNameSafe == kind.matchSuperClassFqName }
+                    if (!isAllowedCast) {
+                        trace.report(ErrorsNative.UNCHECKED_CAST_TO_FORWARD_DECLARATION.on(reportOn, sourceType, targetType))
+                    }
+                }
+            }
+        }
+    }
+
+    override fun check(expression: KtClassLiteralExpression, type: KotlinType, context: ResolutionContext<*>) {
+        val descriptor = type.constructor.declarationDescriptor as? ClassDescriptor
+        if (descriptor?.getForwardDeclarationKindOrNull() != null) {
+            context.trace.report(ErrorsNative.FORWARD_DECLARATION_AS_CLASS_LITERAL.on(expression, type))
+        }
+    }
+}

native/frontend/src/org/jetbrains/kotlin/resolve/konan/diagnostics/NativeReifiedForwardDeclarationChecker.kt

@@ -0,0 +1,33 @@
+/*
+ * 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.resolve.konan.diagnostics
+
+import com.intellij.psi.PsiElement
+import org.jetbrains.kotlin.descriptors.ClassDescriptor
+import org.jetbrains.kotlin.resolve.calls.checkers.CallChecker
+import org.jetbrains.kotlin.resolve.calls.checkers.CallCheckerContext
+import org.jetbrains.kotlin.resolve.calls.model.ResolvedCall
+import org.jetbrains.kotlin.descriptors.konan.*
+
+class NativeReifiedForwardDeclarationChecker : CallChecker {
+    override fun check(resolvedCall: ResolvedCall<*>, reportOn: PsiElement, context: CallCheckerContext) {
+        val typeArgumentList = resolvedCall.call.typeArgumentList?.arguments
+        for ((typeParam, typeArg) in resolvedCall.typeArguments) {
+            if (!typeParam.isReified) continue
+
+            val typeArgDescriptor = typeArg.constructor.declarationDescriptor
+            if (typeArgDescriptor is ClassDescriptor && typeArgDescriptor.getForwardDeclarationKindOrNull() != null) {
+                val typeArgumentPsi = if (typeArgumentList != null) {
+                    typeArgumentList[typeParam.index].typeReference
+                } else {
+                    resolvedCall.call.calleeExpression
+                }
+
+                context.trace.report(ErrorsNative.FORWARD_DECLARATION_AS_REIFIED_TYPE_ARGUMENT.on(typeArgumentPsi!!, typeArg))
+            }
+        }
+    }
+}

native/frontend/src/org/jetbrains/kotlin/resolve/konan/platform/NativePlatformConfigurator.kt

@@ -21,19 +21,21 @@ import org.jetbrains.kotlin.resolve.konan.diagnostics.*
 object NativePlatformConfigurator : PlatformConfiguratorBase(
     additionalCallCheckers = listOf(
         SuperCallWithDefaultArgumentsChecker(),
-        LateinitIntrinsicApplicabilityChecker(isWarningInPre19 = true)
+        LateinitIntrinsicApplicabilityChecker(isWarningInPre19 = true),
+        NativeReifiedForwardDeclarationChecker(),
     ),
     additionalDeclarationCheckers = listOf(
         NativeThrowsChecker, NativeSharedImmutableChecker,
         NativeThreadLocalChecker,
         NativeObjCNameChecker, NativeObjCNameOverridesChecker,
         NativeObjCRefinementChecker, NativeObjCRefinementAnnotationChecker,
-        NativeObjCRefinementOverridesChecker, NativeHiddenFromObjCInheritanceChecker
+        NativeObjCRefinementOverridesChecker, NativeHiddenFromObjCInheritanceChecker,
     )
 ) {
     override fun configureModuleComponents(container: StorageComponentContainer) {
         container.useInstance(NativeInliningRule)
         container.useImpl<NativeIdentifierChecker>()
+        container.useImpl<NativeForwardDeclarationRttiChecker>()
     }
 
     override fun configureModuleDependentCheckers(container: StorageComponentContainer) {

native/native.tests/tests-gen/org/jetbrains/kotlin/konan/diagnostics/DiagnosticsNativeTestGenerated.java

@@ -30,6 +30,12 @@ public class DiagnosticsNativeTestGenerated extends AbstractDiagnosticsNativeTes
         runTest("compiler/testData/diagnostics/nativeTests/cloneableInNative.kt");
     }
 
+    @Test
+    @TestMetadata("forwardDeclarations.kt")
+    public void testForwardDeclarations() throws Exception {
+        runTest("compiler/testData/diagnostics/nativeTests/forwardDeclarations.kt");
+    }
+
     @Test
     @TestMetadata("identifiers.kt")
     public void testIdentifiers() throws Exception {

native/native.tests/tests-gen/org/jetbrains/kotlin/konan/diagnostics/FirLightTreeOldFrontendNativeDiagnosticsTestGenerated.java

@@ -34,6 +34,12 @@ public class FirLightTreeOldFrontendNativeDiagnosticsTestGenerated extends Abstr
         runTest("compiler/testData/diagnostics/nativeTests/cloneableInNative.kt");
     }
 
+    @Test
+    @TestMetadata("forwardDeclarations.kt")
+    public void testForwardDeclarations() throws Exception {
+        runTest("compiler/testData/diagnostics/nativeTests/forwardDeclarations.kt");
+    }
+
     @Test
     @TestMetadata("identifiers.kt")
     public void testIdentifiers() throws Exception {

native/native.tests/tests-gen/org/jetbrains/kotlin/konan/diagnostics/FirPsiOldFrontendNativeDiagnosticsTestGenerated.java

@@ -34,6 +34,12 @@ public class FirPsiOldFrontendNativeDiagnosticsTestGenerated extends AbstractFir
         runTest("compiler/testData/diagnostics/nativeTests/cloneableInNative.kt");
     }
 
+    @Test
+    @TestMetadata("forwardDeclarations.kt")
+    public void testForwardDeclarations() throws Exception {
+        runTest("compiler/testData/diagnostics/nativeTests/forwardDeclarations.kt");
+    }
+
     @Test
     @TestMetadata("identifiers.kt")
     public void testIdentifiers() throws Exception {