[ULC] Add LanguageVersionSettings to CliLightClassGenerationSupport

+ refactoring

compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/K2JsIrCompiler.kt

@@ -24,10 +24,7 @@ import org.jetbrains.kotlin.cli.common.messages.MessageUtil
 import org.jetbrains.kotlin.cli.jvm.compiler.EnvironmentConfigFiles
 import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment
 import org.jetbrains.kotlin.cli.jvm.plugins.PluginCliParser
-import org.jetbrains.kotlin.config.CommonConfigurationKeys
-import org.jetbrains.kotlin.config.CompilerConfiguration
-import org.jetbrains.kotlin.config.IncrementalCompilation
-import org.jetbrains.kotlin.config.Services
+import org.jetbrains.kotlin.config.*
 import org.jetbrains.kotlin.incremental.components.ExpectActualTracker
 import org.jetbrains.kotlin.incremental.components.LookupTracker
 import org.jetbrains.kotlin.incremental.js.IncrementalDataProvider

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/CliLightClassGenerationSupport.kt

@@ -16,8 +16,7 @@
 
 package org.jetbrains.kotlin.cli.jvm.compiler
 
-import com.intellij.psi.PsiManager
-import com.intellij.psi.util.CachedValue
+import com.intellij.openapi.project.Project
 import org.jetbrains.kotlin.asJava.LightClassBuilder
 import org.jetbrains.kotlin.asJava.LightClassGenerationSupport
 import org.jetbrains.kotlin.asJava.builder.InvalidLightClassDataHolder
@@ -28,14 +27,9 @@ import org.jetbrains.kotlin.asJava.classes.*
 import org.jetbrains.kotlin.codegen.ClassBuilderMode
 import org.jetbrains.kotlin.codegen.JvmCodegenUtil
 import org.jetbrains.kotlin.codegen.state.KotlinTypeMapper
-import org.jetbrains.kotlin.config.JvmTarget
-import org.jetbrains.kotlin.config.LanguageFeature
-import org.jetbrains.kotlin.config.LanguageVersionSettings
-import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
+import org.jetbrains.kotlin.config.*
 import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
-import org.jetbrains.kotlin.lexer.KtTokens
 import org.jetbrains.kotlin.load.java.components.JavaDeprecationSettings
-import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.resolve.BindingContext
@@ -43,7 +37,6 @@ import org.jetbrains.kotlin.resolve.deprecation.CoroutineCompatibilitySupport
 import org.jetbrains.kotlin.resolve.deprecation.DeprecationResolver
 import org.jetbrains.kotlin.storage.LockBasedStorageManager
 import org.jetbrains.kotlin.types.KotlinType
-import org.jetbrains.kotlin.resolve.constants.evaluate.ConstantExpressionEvaluator as ResolveEvaluator
 
 /**
  * This class solves the problem of interdependency between analyzing Kotlin code and generating JetLightClasses
@@ -57,23 +50,25 @@ import org.jetbrains.kotlin.resolve.constants.evaluate.ConstantExpressionEvaluat
 
  * To mitigate this, CliLightClassGenerationSupport hold a trace that is shared between the analyzer and JetLightClasses
  */
-class CliLightClassGenerationSupport(private val traceHolder: CliTraceHolder) : LightClassGenerationSupport() {
+class CliLightClassGenerationSupport(
+    val traceHolder: CliTraceHolder,
+    private val project: Project
+) : LightClassGenerationSupport() {
 
-    private val ultraLightSupport = object : KtUltraLightSupport {
+    private class CliLightClassSupport(
+        private val project: Project,
+        override val languageVersionSettings: LanguageVersionSettings
+    ) : KtUltraLightSupport {
 
-        //TODO: languageVersionSettings is always default
-        private val languageVersionSettings: LanguageVersionSettings
-            get() = getContext().languageVersionSettings
-                ?: LanguageVersionSettingsImpl.DEFAULT
+        // This is the way to untie CliLightClassSupport and CliLightClassGenerationSupport to prevent descriptors leak
+        private val traceHolder: CliTraceHolder
+            get() = (getInstance(project) as CliLightClassGenerationSupport).traceHolder
 
         override val isReleasedCoroutine
             get() = languageVersionSettings.supportsFeature(LanguageFeature.ReleaseCoroutines)
 
         override fun possiblyHasAlias(file: KtFile, shortName: Name): Boolean = true
 
-        override fun getConstantEvaluator(expression: KtExpression): org.jetbrains.kotlin.resolve.constants.evaluate.ConstantExpressionEvaluator =
-            ResolveEvaluator(moduleDescriptor, languageVersionSettings, expression.project)
-
         override val moduleDescriptor get() = traceHolder.module
 
         override val moduleName: String get() = JvmCodegenUtil.getModuleName(moduleDescriptor)
@@ -99,53 +94,15 @@ class CliLightClassGenerationSupport(private val traceHolder: CliTraceHolder) :
         }
     }
 
-    override fun createUltraLightClassForFacade(
-        manager: PsiManager,
-        facadeClassFqName: FqName,
-        lightClassDataCache: CachedValue<LightClassDataHolder.ForFacade>,
-        files: Collection<KtFile>
-    ): KtUltraLightClassForFacade? {
-
-        if (files.any { it.isScript() }) return null
-
-        val filesToSupports: List<Pair<KtFile, KtUltraLightSupport>> = files.map {
-            it to UltraLightSupportViaService(it)
-        }
-
-        return KtUltraLightClassForFacade(
-            manager,
-            facadeClassFqName,
-            lightClassDataCache,
-            files,
-            filesToSupports
-        )
+    private val ultraLightSupport: KtUltraLightSupport by lazyPub {
+        CliLightClassSupport(project, traceHolder.languageVersionSettings)
     }
 
-    override fun createUltraLightClass(element: KtClassOrObject): KtUltraLightClass? {
-        if (element.shouldNotBeVisibleAsLightClass()) {
-            return null
-        }
-
-        return UltraLightSupportViaService(element).let { support ->
-            when {
-                element is KtObjectDeclaration && element.isObjectLiteral() ->
-                    KtUltraLightClassForAnonymousDeclaration(element, support)
-                element.safeIsLocal() ->
-                    KtUltraLightClassForLocalDeclaration(element, support)
-
-                (element.hasModifier(KtTokens.INLINE_KEYWORD)) ->
-                    KtUltraLightInlineClass(element, support)
-
-                else -> KtUltraLightClass(element, support)
-            }
-        }
+    override fun getUltraLightClassSupport(element: KtElement): KtUltraLightSupport {
+        require(element.project == project) { "ULC support created from another project from requested" }
+        return ultraLightSupport
     }
 
-    override fun createUltraLightClassForScript(script: KtScript): KtUltraLightClassForScript? =
-        KtUltraLightClassForScript(script, support = UltraLightSupportViaService(script))
-
-    override fun getUltraLightClassSupport(element: KtElement): KtUltraLightSupport = ultraLightSupport
-
     override fun createDataHolderForClass(classOrObject: KtClassOrObject, builder: LightClassBuilder): LightClassDataHolder.ForClass {
         //force resolve companion for light class generation
         traceHolder.bindingContext.get(BindingContext.CLASS, classOrObject)?.companionObjectDescriptor
@@ -167,7 +124,8 @@ class CliLightClassGenerationSupport(private val traceHolder: CliTraceHolder) :
         return LightClassDataHolderImpl(stub, diagnostics)
     }
 
-    private fun getContext(): LightClassConstructionContext = LightClassConstructionContext(traceHolder.bindingContext, traceHolder.module)
+    private fun getContext(): LightClassConstructionContext =
+        LightClassConstructionContext(traceHolder.bindingContext, traceHolder.module)
 
     override fun resolveToDescriptor(declaration: KtDeclaration): DeclarationDescriptor? {
         return traceHolder.bindingContext.get(BindingContext.DECLARATION_TO_DESCRIPTOR, declaration)
@@ -178,6 +136,4 @@ class CliLightClassGenerationSupport(private val traceHolder: CliTraceHolder) :
     override fun analyzeAnnotation(element: KtAnnotationEntry) = traceHolder.bindingContext.get(BindingContext.ANNOTATION, element)
 
     override fun analyzeWithContent(element: KtClassOrObject) = traceHolder.bindingContext
-
-
 }

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/CliTrace.kt

@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.cli.jvm.compiler
 
 import org.jetbrains.annotations.TestOnly
+import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
 import org.jetbrains.kotlin.psi.KtDeclaration
 import org.jetbrains.kotlin.psi.KtPsiUtil
@@ -23,11 +24,19 @@ class CliTraceHolder : CodeAnalyzerInitializer {
         private set
     var module: ModuleDescriptor by Delegates.notNull()
         private set
+    var languageVersionSettings: LanguageVersionSettings by Delegates.notNull()
+        private set
 
 
-    override fun initialize(trace: BindingTrace, module: ModuleDescriptor, codeAnalyzer: KotlinCodeAnalyzer) {
+    override fun initialize(
+        trace: BindingTrace,
+        module: ModuleDescriptor,
+        codeAnalyzer: KotlinCodeAnalyzer,
+        languageVersionSettings: LanguageVersionSettings
+    ) {
         this.bindingContext = trace.bindingContext
         this.module = module
+        this.languageVersionSettings = languageVersionSettings
 
         if (trace !is CliBindingTrace) {
             throw IllegalArgumentException("Shared trace is expected to be subclass of ${CliBindingTrace::class.java.simpleName} class")

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/KotlinCoreEnvironment.kt

@@ -77,10 +77,7 @@ import org.jetbrains.kotlin.cli.jvm.modules.CoreJrtFileSystem
 import org.jetbrains.kotlin.codegen.extensions.ClassBuilderInterceptorExtension
 import org.jetbrains.kotlin.codegen.extensions.ExpressionCodegenExtension
 import org.jetbrains.kotlin.compiler.plugin.ComponentRegistrar
-import org.jetbrains.kotlin.config.APPEND_JAVA_SOURCE_ROOTS_HANDLER_KEY
-import org.jetbrains.kotlin.config.CompilerConfiguration
-import org.jetbrains.kotlin.config.JVMConfigurationKeys
-import org.jetbrains.kotlin.config.languageVersionSettings
+import org.jetbrains.kotlin.config.*
 import org.jetbrains.kotlin.extensions.*
 import org.jetbrains.kotlin.extensions.internal.CandidateInterceptor
 import org.jetbrains.kotlin.extensions.internal.TypeResolutionInterceptor
@@ -108,12 +105,13 @@ import java.util.zip.ZipFile
 
 class KotlinCoreEnvironment private constructor(
     val projectEnvironment: JavaCoreProjectEnvironment,
-    initialConfiguration: CompilerConfiguration,
+    private val initialConfiguration: CompilerConfiguration,
     configFiles: EnvironmentConfigFiles
 ) {
 
     class ProjectEnvironment(
-        disposable: Disposable, applicationEnvironment: KotlinCoreApplicationEnvironment
+        disposable: Disposable,
+        applicationEnvironment: KotlinCoreApplicationEnvironment
     ) :
         KotlinCoreProjectEnvironment(disposable, applicationEnvironment) {
 
@@ -637,7 +635,7 @@ class KotlinCoreEnvironment private constructor(
         fun registerKotlinLightClassSupport(project: MockProject) {
             with(project) {
                 val traceHolder = CliTraceHolder()
-                val cliLightClassGenerationSupport = CliLightClassGenerationSupport(traceHolder)
+                val cliLightClassGenerationSupport = CliLightClassGenerationSupport(traceHolder, project)
                 val kotlinAsJavaSupport = CliKotlinAsJavaSupport(this, traceHolder)
                 registerService(LightClassGenerationSupport::class.java, cliLightClassGenerationSupport)
                 registerService(CliLightClassGenerationSupport::class.java, cliLightClassGenerationSupport)

compiler/frontend.java/src/org/jetbrains/kotlin/frontend/java/di/injection.kt

@@ -93,7 +93,7 @@ fun createContainerForLazyResolveWithJava(
 }
 
 fun StorageComponentContainer.initializeJavaSpecificComponents(bindingTrace: BindingTrace) {
-    get<AbstractJavaClassFinder>().initialize(bindingTrace, get<KotlinCodeAnalyzer>())
+    get<AbstractJavaClassFinder>().initialize(bindingTrace, get<KotlinCodeAnalyzer>(), get<LanguageVersionSettings>())
 }
 
 fun StorageComponentContainer.configureJavaSpecificComponents(

compiler/frontend.java/src/org/jetbrains/kotlin/load/java/AbstractJavaClassFinder.kt

@@ -20,6 +20,7 @@ import com.intellij.openapi.project.Project
 import com.intellij.openapi.vfs.VirtualFile
 import com.intellij.psi.search.DelegatingGlobalSearchScope
 import com.intellij.psi.search.GlobalSearchScope
+import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.idea.KotlinFileType
 import org.jetbrains.kotlin.resolve.BindingTrace
 import org.jetbrains.kotlin.resolve.CodeAnalyzerInitializer
@@ -49,8 +50,8 @@ abstract class AbstractJavaClassFinder : JavaClassFinder {
     }
 
     @PostConstruct
-    open fun initialize(trace: BindingTrace, codeAnalyzer: KotlinCodeAnalyzer) {
-        CodeAnalyzerInitializer.getInstance(project).initialize(trace, codeAnalyzer.moduleDescriptor, codeAnalyzer)
+    open fun initialize(trace: BindingTrace, codeAnalyzer: KotlinCodeAnalyzer, languageVersionSettings: LanguageVersionSettings) {
+        CodeAnalyzerInitializer.getInstance(project).initialize(trace, codeAnalyzer.moduleDescriptor, codeAnalyzer, languageVersionSettings)
     }
 
     inner class FilterOutKotlinSourceFilesScope(baseScope: GlobalSearchScope) : DelegatingGlobalSearchScope(baseScope),

compiler/frontend/src/org/jetbrains/kotlin/resolve/CodeAnalyzerInitializer.kt

@@ -18,11 +18,18 @@ package org.jetbrains.kotlin.resolve
 
 import com.intellij.openapi.components.ServiceManager
 import com.intellij.openapi.project.Project
+import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
 import org.jetbrains.kotlin.resolve.lazy.KotlinCodeAnalyzer
 
 interface CodeAnalyzerInitializer {
-    fun initialize(trace: BindingTrace, module: ModuleDescriptor, codeAnalyzer: KotlinCodeAnalyzer)
+    fun initialize(
+        trace: BindingTrace,
+        module: ModuleDescriptor,
+        codeAnalyzer: KotlinCodeAnalyzer,
+        languageVersionSettings: LanguageVersionSettings
+    )
+
     fun createTrace(): BindingTrace
 
     companion object {
@@ -32,7 +39,12 @@ interface CodeAnalyzerInitializer {
 }
 
 class DummyCodeAnalyzerInitializer : CodeAnalyzerInitializer {
-    override fun initialize(trace: BindingTrace, module: ModuleDescriptor, codeAnalyzer: KotlinCodeAnalyzer) {
+    override fun initialize(
+        trace: BindingTrace,
+        module: ModuleDescriptor,
+        codeAnalyzer: KotlinCodeAnalyzer,
+        languageVersionSettings: LanguageVersionSettings
+    ) {
         // Do nothing
     }
 

compiler/javac-wrapper/src/org/jetbrains/kotlin/javac/components/JavacBasedClassFinder.kt

@@ -16,6 +16,7 @@
 
 package org.jetbrains.kotlin.javac.components
 
+import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.javac.JavacWrapper
 import org.jetbrains.kotlin.load.java.AbstractJavaClassFinder
 import org.jetbrains.kotlin.load.java.JavaClassFinder
@@ -27,9 +28,9 @@ class JavacBasedClassFinder : AbstractJavaClassFinder() {
 
     private lateinit var javac: JavacWrapper
 
-    override fun initialize(trace: BindingTrace, codeAnalyzer: KotlinCodeAnalyzer) {
+    override fun initialize(trace: BindingTrace, codeAnalyzer: KotlinCodeAnalyzer, languageVersionSettings: LanguageVersionSettings) {
         javac = JavacWrapper.getInstance(project)
-        super.initialize(trace, codeAnalyzer)
+        super.initialize(trace, codeAnalyzer, languageVersionSettings)
     }
 
     override fun findClass(request: JavaClassFinder.Request) =

compiler/light-classes/src/org/jetbrains/kotlin/asJava/LightClassGenerationSupport.kt

@@ -28,9 +28,11 @@ import org.jetbrains.kotlin.asJava.builder.LightClassDataHolder
 import org.jetbrains.kotlin.asJava.classes.*
 import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
 import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
+import org.jetbrains.kotlin.lexer.KtTokens
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.resolve.BindingContext
+import org.jetbrains.kotlin.resolve.constants.evaluate.ConstantExpressionEvaluator
 
 typealias LightClassBuilder = (LightClassConstructionContext) -> LightClassBuilderResult
 
@@ -49,18 +51,57 @@ abstract class LightClassGenerationSupport {
 
     abstract fun analyzeWithContent(element: KtClassOrObject): BindingContext
 
-    abstract fun createUltraLightClass(element: KtClassOrObject): KtUltraLightClass?
+    protected abstract fun getUltraLightClassSupport(element: KtElement): KtUltraLightSupport
 
-    abstract fun createUltraLightClassForScript(script: KtScript): KtUltraLightClassForScript?
+    fun createConstantEvaluator(expression: KtExpression): ConstantExpressionEvaluator = getUltraLightClassSupport(expression).run {
+        ConstantExpressionEvaluator(moduleDescriptor, languageVersionSettings, expression.project)
+    }
 
-    abstract fun getUltraLightClassSupport(element: KtElement): KtUltraLightSupport
-
-    abstract fun createUltraLightClassForFacade(
+    fun createUltraLightClassForFacade(
         manager: PsiManager,
         facadeClassFqName: FqName,
         lightClassDataCache: CachedValue<LightClassDataHolder.ForFacade>,
-        files: Collection<KtFile>
-    ): KtUltraLightClassForFacade?
+        files: Collection<KtFile>,
+    ): KtUltraLightClassForFacade? {
+
+        if (files.any { it.isScript() }) return null
+
+        val filesToSupports: List<Pair<KtFile, KtUltraLightSupport>> = files.map {
+            it to getUltraLightClassSupport(it)
+        }
+
+        return KtUltraLightClassForFacade(
+            manager,
+            facadeClassFqName,
+            lightClassDataCache,
+            files,
+            filesToSupports
+        )
+    }
+
+    fun createUltraLightClass(element: KtClassOrObject): KtUltraLightClass? {
+        if (element.shouldNotBeVisibleAsLightClass()) {
+            return null
+        }
+
+        return getUltraLightClassSupport(element).let { support ->
+            when {
+                element is KtObjectDeclaration && element.isObjectLiteral() ->
+                    KtUltraLightClassForAnonymousDeclaration(element, support)
+
+                element.safeIsLocal() ->
+                    KtUltraLightClassForLocalDeclaration(element, support)
+
+                (element.hasModifier(KtTokens.INLINE_KEYWORD)) ->
+                    KtUltraLightInlineClass(element, support)
+
+                else -> KtUltraLightClass(element, support)
+            }
+        }
+    }
+
+    fun createUltraLightClassForScript(script: KtScript): KtUltraLightClassForScript? =
+        KtUltraLightClassForScript(script, support = getUltraLightClassSupport(script))
 
     companion object {
         @JvmStatic

compiler/light-classes/src/org/jetbrains/kotlin/asJava/classes/ultraLightSupport.kt

@@ -6,12 +6,11 @@
 package org.jetbrains.kotlin.asJava.classes
 
 import org.jetbrains.annotations.TestOnly
-import org.jetbrains.kotlin.asJava.LightClassGenerationSupport
 import org.jetbrains.kotlin.codegen.state.KotlinTypeMapper
+import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.psi.*
-import org.jetbrains.kotlin.resolve.constants.evaluate.ConstantExpressionEvaluator
 import org.jetbrains.kotlin.resolve.deprecation.DeprecationResolver
 
 interface KtUltraLightSupport {
@@ -20,9 +19,9 @@ interface KtUltraLightSupport {
     val typeMapper: KotlinTypeMapper
     val moduleDescriptor: ModuleDescriptor
     val isReleasedCoroutine: Boolean
-    fun possiblyHasAlias(file: KtFile, shortName: Name): Boolean
+    val languageVersionSettings: LanguageVersionSettings
 
-    fun getConstantEvaluator(expression: KtExpression): ConstantExpressionEvaluator
+    fun possiblyHasAlias(file: KtFile, shortName: Name): Boolean
 
     companion object {
         // This property may be removed once IntelliJ versions earlier than 2018.3 become unsupported
@@ -32,30 +31,3 @@ interface KtUltraLightSupport {
         var forceUsingOldLightClasses = false
     }
 }
-
-class UltraLightSupportViaService(private val ktElement: KtElement) : KtUltraLightSupport {
-
-    private val serviceProvidedSupport: KtUltraLightSupport
-        get() = LightClassGenerationSupport.getInstance(ktElement.project).getUltraLightClassSupport(ktElement)
-
-    override val moduleName: String
-        get() = serviceProvidedSupport.moduleName
-
-    override val deprecationResolver: DeprecationResolver
-        get() = serviceProvidedSupport.deprecationResolver
-
-    override val typeMapper: KotlinTypeMapper
-        get() = serviceProvidedSupport.typeMapper
-
-    override val moduleDescriptor: ModuleDescriptor
-        get() = serviceProvidedSupport.moduleDescriptor
-
-    override val isReleasedCoroutine: Boolean
-        get() = serviceProvidedSupport.isReleasedCoroutine
-
-    override fun possiblyHasAlias(file: KtFile, shortName: Name): Boolean =
-        serviceProvidedSupport.possiblyHasAlias(file, shortName)
-
-    override fun getConstantEvaluator(expression: KtExpression): ConstantExpressionEvaluator =
-        serviceProvidedSupport.getConstantEvaluator(expression)
-}

compiler/light-classes/src/org/jetbrains/kotlin/asJava/lightClassUtils.kt

@@ -282,9 +282,7 @@ fun computeExpression(expression: PsiElement): Any? {
     }
 
     val generationSupport = LightClassGenerationSupport.getInstance(expressionToCompute.project)
-    val evaluator = generationSupport
-        .getUltraLightClassSupport(expressionToCompute)
-        .getConstantEvaluator(expressionToCompute)
+    val evaluator = generationSupport.createConstantEvaluator(expressionToCompute)
 
     val constant = runReadAction {
         val evaluatorTrace = DelegatingBindingTrace(generationSupport.analyze(expressionToCompute), "Evaluating annotation argument")

idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/IDELightClassGenerationSupport.kt

@@ -7,9 +7,7 @@ package org.jetbrains.kotlin.idea.caches.resolve
 
 import com.intellij.openapi.module.ModuleUtilCore
 import com.intellij.openapi.project.Project
-import com.intellij.psi.PsiManager
 import com.intellij.psi.search.GlobalSearchScope
-import com.intellij.psi.util.CachedValue
 import com.intellij.psi.util.CachedValueProvider
 import com.intellij.psi.util.CachedValuesManager
 import com.intellij.psi.util.PsiModificationTracker
@@ -25,6 +23,7 @@ import org.jetbrains.kotlin.codegen.JvmCodegenUtil
 import org.jetbrains.kotlin.codegen.state.KotlinTypeMapper
 import org.jetbrains.kotlin.config.JvmTarget
 import org.jetbrains.kotlin.config.LanguageFeature
+import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
 import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
 import org.jetbrains.kotlin.idea.FrontendInternals
@@ -33,33 +32,27 @@ import org.jetbrains.kotlin.idea.caches.lightClasses.LazyLightClassDataHolder
 import org.jetbrains.kotlin.idea.project.languageVersionSettings
 import org.jetbrains.kotlin.idea.resolve.frontendService
 import org.jetbrains.kotlin.idea.stubindex.KotlinTypeAliasShortNameIndex
-import org.jetbrains.kotlin.lexer.KtTokens
-import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.resolve.BindingContext
-import org.jetbrains.kotlin.resolve.constants.evaluate.ConstantExpressionEvaluator
 import org.jetbrains.kotlin.resolve.deprecation.DeprecationResolver
 import org.jetbrains.kotlin.resolve.lazy.BodyResolveMode
 import org.jetbrains.kotlin.resolve.lazy.NoDescriptorForDeclarationException
 import org.jetbrains.kotlin.types.KotlinType
 import java.util.concurrent.ConcurrentMap
 
-class IDELightClassGenerationSupport(private val project: Project) : LightClassGenerationSupport() {
+class IDELightClassGenerationSupport(project: Project) : LightClassGenerationSupport() {
 
     private class KtUltraLightSupportImpl(private val element: KtElement) : KtUltraLightSupport {
 
         private val module = ModuleUtilCore.findModuleForPsiElement(element)
 
-        private val languageVersionSettings
+        override val languageVersionSettings: LanguageVersionSettings
             get() = module?.languageVersionSettings ?: KotlinTypeMapper.LANGUAGE_VERSION_SETTINGS_DEFAULT
 
         override val isReleasedCoroutine
             get() = languageVersionSettings.supportsFeature(LanguageFeature.ReleaseCoroutines) ?: true
 
-        override fun getConstantEvaluator(expression: KtExpression): ConstantExpressionEvaluator =
-            ConstantExpressionEvaluator(moduleDescriptor, KotlinTypeMapper.LANGUAGE_VERSION_SETTINGS_DEFAULT, expression.project)
-
         private val resolutionFacade get() = element.getResolutionFacade()
 
         override val moduleDescriptor get() = resolutionFacade.moduleDescriptor
@@ -94,54 +87,7 @@ class IDELightClassGenerationSupport(private val project: Project) : LightClassG
         }
     }
 
-    override fun createUltraLightClassForFacade(
-        manager: PsiManager,
-        facadeClassFqName: FqName,
-        lightClassDataCache: CachedValue<LightClassDataHolder.ForFacade>,
-        files: Collection<KtFile>
-    ): KtUltraLightClassForFacade? {
-
-        if (files.any { it.isScript() }) return null
-
-        val filesToSupports: List<Pair<KtFile, KtUltraLightSupport>> = files.map {
-            it to KtUltraLightSupportImpl(it)
-        }
-
-        return KtUltraLightClassForFacade(
-            manager,
-            facadeClassFqName,
-            lightClassDataCache,
-            files,
-            filesToSupports
-        )
-    }
-
-    override fun createUltraLightClass(element: KtClassOrObject): KtUltraLightClass? {
-        if (element.shouldNotBeVisibleAsLightClass()) {
-            return null
-        }
-
-        return KtUltraLightSupportImpl(element).let { support ->
-            when {
-                element is KtObjectDeclaration && element.isObjectLiteral() ->
-                    KtUltraLightClassForAnonymousDeclaration(element, support)
-
-                element.safeIsLocal() ->
-                    KtUltraLightClassForLocalDeclaration(element, support)
-
-                (element.hasModifier(KtTokens.INLINE_KEYWORD)) ->
-                    KtUltraLightInlineClass(element, support)
-
-                else -> KtUltraLightClass(element, support)
-            }
-        }
-    }
-
-    override fun createUltraLightClassForScript(script: KtScript): KtUltraLightClassForScript? =
-        KtUltraLightClassForScript(script, support = KtUltraLightSupportImpl(script))
-
-    override fun getUltraLightClassSupport(element: KtElement): KtUltraLightSupport =
-        KtUltraLightSupportImpl(element)
+    override fun getUltraLightClassSupport(element: KtElement): KtUltraLightSupport = KtUltraLightSupportImpl(element)
 
     private val scopeFileComparator = JavaElementFinder.byClasspathComparator(GlobalSearchScope.allScope(project))