Uninherit LanguageVersion from LanguageFeatureSettings

Introduce LanguageVersionSettingsImpl to store everything related to the
selected language version

compiler/cli/src/org/jetbrains/kotlin/cli/common/CLICompiler.java

@@ -33,10 +33,7 @@ import org.jetbrains.kotlin.cli.common.messages.*;
 import org.jetbrains.kotlin.cli.jvm.K2JVMCompiler;
 import org.jetbrains.kotlin.cli.jvm.compiler.CompileEnvironmentException;
 import org.jetbrains.kotlin.cli.jvm.compiler.CompilerJarLocator;
-import org.jetbrains.kotlin.config.CommonConfigurationKeys;
-import org.jetbrains.kotlin.config.CompilerConfiguration;
-import org.jetbrains.kotlin.config.LanguageVersion;
-import org.jetbrains.kotlin.config.Services;
+import org.jetbrains.kotlin.config.*;
 import org.jetbrains.kotlin.progress.CompilationCanceledException;
 import org.jetbrains.kotlin.progress.CompilationCanceledStatus;
 import org.jetbrains.kotlin.progress.ProgressIndicatorAndCompilationCanceledStatus;
@@ -250,9 +247,9 @@ public abstract class CLICompiler<A extends CommonCompilerArguments> {
         }
 
         if (arguments.languageVersion != null) {
-            LanguageVersion languageFeatureSettings = LanguageVersion.fromVersionString(arguments.languageVersion);
-            if (languageFeatureSettings != null) {
-                configuration.put(CommonConfigurationKeys.LANGUAGE_FEATURE_SETTINGS, languageFeatureSettings);
+            LanguageVersion languageVersion = LanguageVersion.fromVersionString(arguments.languageVersion);
+            if (languageVersion != null) {
+                configuration.put(CommonConfigurationKeys.LANGUAGE_FEATURE_SETTINGS, new LanguageVersionSettingsImpl(languageVersion));
             }
             else {
                 List<String> versionStrings = ArraysKt.map(LanguageVersion.values(), new Function1<LanguageVersion, String>() {

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/repl/di/injection.kt

@@ -17,7 +17,7 @@
 package org.jetbrains.kotlin.cli.jvm.repl.di
 
 import com.intellij.psi.search.GlobalSearchScope
-import org.jetbrains.kotlin.config.LanguageVersion
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.container.*
 import org.jetbrains.kotlin.context.ModuleContext
 import org.jetbrains.kotlin.descriptors.PackagePartProvider
@@ -44,7 +44,7 @@ fun createContainerForReplWithJava(
 ): ContainerForReplWithJava = createContainer("ReplWithJava") {
     useInstance(packagePartProvider)
     configureModule(moduleContext, JvmPlatform, bindingTrace)
-    configureJavaTopDownAnalysis(moduleContentScope, moduleContext.project, LookupTracker.DO_NOTHING, LanguageVersion.LATEST)
+    configureJavaTopDownAnalysis(moduleContentScope, moduleContext.project, LookupTracker.DO_NOTHING, LanguageVersionSettingsImpl.DEFAULT)
 
     useInstance(declarationProviderFactory)
 

compiler/frontend.java/src/org/jetbrains/kotlin/resolve/jvm/JvmAnalyzerFacade.kt

@@ -20,7 +20,7 @@ import com.intellij.openapi.diagnostic.Logger
 import com.intellij.openapi.project.Project
 import com.intellij.psi.search.GlobalSearchScope
 import org.jetbrains.kotlin.analyzer.*
-import org.jetbrains.kotlin.config.LanguageVersion
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.container.get
 import org.jetbrains.kotlin.context.ModuleContext
 import org.jetbrains.kotlin.descriptors.PackagePartProvider
@@ -91,7 +91,7 @@ object JvmAnalyzerFacade : AnalyzerFacade<JvmPlatformParameters>() {
                 moduleClassResolver,
                 targetEnvironment,
                 packagePartProvider,
-                LanguageVersion.LATEST // TODO: see KT-12410
+                LanguageVersionSettingsImpl.DEFAULT // TODO: see KT-12410
         )
         val resolveSession = container.get<ResolveSession>()
         val javaDescriptorResolver = container.get<JavaDescriptorResolver>()

compiler/frontend.java/src/org/jetbrains/kotlin/resolve/jvm/TopDownAnalyzerFacadeForJVM.java

@@ -23,7 +23,7 @@ import org.jetbrains.kotlin.analyzer.AnalysisResult;
 import org.jetbrains.kotlin.config.CommonConfigurationKeys;
 import org.jetbrains.kotlin.config.CompilerConfiguration;
 import org.jetbrains.kotlin.config.JVMConfigurationKeys;
-import org.jetbrains.kotlin.config.LanguageVersion;
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl;
 import org.jetbrains.kotlin.context.ContextKt;
 import org.jetbrains.kotlin.context.ModuleContext;
 import org.jetbrains.kotlin.context.MutableModuleContext;
@@ -102,7 +102,7 @@ public enum TopDownAnalyzerFacadeForJVM {
                 GlobalSearchScope.allScope(project),
                 lookupTracker,
                 packagePartProvider,
-                configuration.get(CommonConfigurationKeys.LANGUAGE_FEATURE_SETTINGS, LanguageVersion.LATEST)
+                configuration.get(CommonConfigurationKeys.LANGUAGE_FEATURE_SETTINGS, LanguageVersionSettingsImpl.DEFAULT)
         );
 
         List<PackageFragmentProvider> additionalProviders = new ArrayList<PackageFragmentProvider>();

compiler/frontend/src/org/jetbrains/kotlin/config/LanguageFeatureSettings.kt

@@ -36,14 +36,10 @@ enum class LanguageFeature(val sinceVersion: LanguageVersion) {
     }
 }
 
-enum class LanguageVersion(val versionString: String): LanguageFeatureSettings {
+enum class LanguageVersion(val versionString: String) {
     KOTLIN_1_0("1.0"),
     KOTLIN_1_1("1.1");
 
-    override fun supportsFeature(feature: LanguageFeature): Boolean {
-        return this.ordinal >= feature.sinceVersion.ordinal
-    }
-
     companion object {
         @JvmStatic
         fun fromVersionString(str: String) = values().find { it.versionString == str }
@@ -56,3 +52,14 @@ enum class LanguageVersion(val versionString: String): LanguageFeatureSettings {
 interface LanguageFeatureSettings {
     fun supportsFeature(feature: LanguageFeature): Boolean
 }
+
+class LanguageVersionSettingsImpl(private val languageVersion: LanguageVersion) : LanguageFeatureSettings {
+    override fun supportsFeature(feature: LanguageFeature): Boolean {
+        return languageVersion.ordinal >= feature.sinceVersion.ordinal
+    }
+
+    companion object {
+        @JvmField
+        val DEFAULT = LanguageVersionSettingsImpl(LanguageVersion.LATEST)
+    }
+}

compiler/tests-common/org/jetbrains/kotlin/renderer/AbstractDescriptorRendererTest.kt

@@ -20,7 +20,7 @@ import com.intellij.openapi.editor.impl.DocumentImpl
 import com.intellij.openapi.util.io.FileUtil
 import org.jetbrains.kotlin.cli.jvm.compiler.CliLightClassGenerationSupport
 import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment
-import org.jetbrains.kotlin.config.LanguageVersion
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.container.ComponentProvider
 import org.jetbrains.kotlin.container.get
 import org.jetbrains.kotlin.descriptors.ClassDescriptor
@@ -62,7 +62,7 @@ abstract class AbstractDescriptorRendererTest : KotlinTestWithEnvironment() {
                 CliLightClassGenerationSupport.NoScopeRecordCliBindingTrace(),
                 JvmPlatform,
                 targetEnvironment,
-                LanguageVersion.LATEST
+                LanguageVersionSettingsImpl.DEFAULT
         )
 
         val resolveSession = container.get<ResolveSession>()

compiler/tests-common/org/jetbrains/kotlin/tests/di/injection.kt

@@ -17,7 +17,7 @@
 package org.jetbrains.kotlin.tests.di
 
 import com.intellij.openapi.project.Project
-import org.jetbrains.kotlin.config.LanguageVersion
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.container.*
 import org.jetbrains.kotlin.context.ModuleContext
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
@@ -34,7 +34,7 @@ fun createContainerForTests(project: Project, module: ModuleDescriptor): Contain
     return ContainerForTests(createContainer("Tests") {
         configureModule(ModuleContext(module, project), JvmPlatform)
         useInstance(LookupTracker.DO_NOTHING)
-        useInstance(LanguageVersion.LATEST)
+        useInstance(LanguageVersionSettingsImpl.DEFAULT)
         useImpl<ExpressionTypingServices>()
     })
 }

compiler/tests-java8/tests/org/jetbrains/kotlin/serialization/builtins/AdditionalBuiltInsMembersSignatureListsTest.kt

@@ -19,7 +19,7 @@ package org.jetbrains.kotlin.serialization.builtins
 import com.intellij.psi.search.GlobalSearchScope
 import org.jetbrains.kotlin.cli.jvm.compiler.CliLightClassGenerationSupport
 import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment
-import org.jetbrains.kotlin.config.LanguageVersion
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.context.ModuleContext
 import org.jetbrains.kotlin.descriptors.PackagePartProvider
 import org.jetbrains.kotlin.descriptors.resolveClassByFqName
@@ -56,7 +56,7 @@ class AdditionalBuiltInsMembersSignatureListsTest : KotlinTestWithEnvironment()
         val container = createContainerForTopDownAnalyzerForJvm(
                 moduleContext, CliLightClassGenerationSupport.CliBindingTrace(), providerFactory,
                 GlobalSearchScope.allScope(environment.project), LookupTracker.DO_NOTHING, PackagePartProvider.EMPTY,
-                LanguageVersion.LATEST
+                LanguageVersionSettingsImpl.DEFAULT
         )
 
         emptyModule.initialize(container.javaDescriptorResolver.packageFragmentProvider)

compiler/tests/org/jetbrains/kotlin/checkers/BaseDiagnosticsTest.java

@@ -36,7 +36,7 @@ import org.jetbrains.annotations.Nullable;
 import org.jetbrains.kotlin.asJava.DuplicateJvmSignatureUtilKt;
 import org.jetbrains.kotlin.config.LanguageFeature;
 import org.jetbrains.kotlin.config.LanguageFeatureSettings;
-import org.jetbrains.kotlin.config.LanguageVersion;
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl;
 import org.jetbrains.kotlin.descriptors.DeclarationDescriptor;
 import org.jetbrains.kotlin.diagnostics.*;
 import org.jetbrains.kotlin.load.java.InternalFlexibleTypeTransformer;
@@ -194,7 +194,7 @@ public abstract class BaseDiagnosticsTest
                 if (enabled != null) {
                     return enabled;
                 }
-                return LanguageVersion.LATEST.supportsFeature(feature);
+                return LanguageVersionSettingsImpl.DEFAULT.supportsFeature(feature);
             }
         };
     }

compiler/tests/org/jetbrains/kotlin/serialization/AbstractLocalClassProtoTest.kt

@@ -21,7 +21,7 @@ import org.jetbrains.kotlin.cli.jvm.compiler.CliLightClassGenerationSupport
 import org.jetbrains.kotlin.cli.jvm.compiler.EnvironmentConfigFiles
 import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment
 import org.jetbrains.kotlin.codegen.forTestCompile.ForTestCompileRuntime
-import org.jetbrains.kotlin.config.LanguageVersion
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.descriptors.PackagePartProvider
 import org.jetbrains.kotlin.frontend.java.di.createContainerForTopDownAnalyzerForJvm
 import org.jetbrains.kotlin.incremental.components.LookupTracker
@@ -61,7 +61,7 @@ abstract class AbstractLocalClassProtoTest : TestCaseWithTmpdir() {
         val container = createContainerForTopDownAnalyzerForJvm(
                 moduleContext, CliLightClassGenerationSupport.NoScopeRecordCliBindingTrace(),
                 providerFactory, GlobalSearchScope.allScope(environment.project), LookupTracker.DO_NOTHING, PackagePartProvider.EMPTY,
-                LanguageVersion.LATEST
+                LanguageVersionSettingsImpl.DEFAULT
         )
         moduleContext.initializeModuleContents(container.javaDescriptorResolver.packageFragmentProvider)
 

compiler/tests/org/jetbrains/kotlin/serialization/builtins/AbstractBuiltInsWithJDKMembersTest.kt

@@ -20,7 +20,7 @@ import com.intellij.psi.search.GlobalSearchScope
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns.*
 import org.jetbrains.kotlin.cli.jvm.compiler.CliLightClassGenerationSupport
 import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment
-import org.jetbrains.kotlin.config.LanguageVersion
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.context.ModuleContext
 import org.jetbrains.kotlin.descriptors.PackagePartProvider
 import org.jetbrains.kotlin.frontend.java.di.createContainerForTopDownAnalyzerForJvm
@@ -64,7 +64,7 @@ abstract class AbstractBuiltInsWithJDKMembersTest : KotlinTestWithEnvironment()
         val container = createContainerForTopDownAnalyzerForJvm(
                 moduleContext, CliLightClassGenerationSupport.CliBindingTrace(), providerFactory,
                 GlobalSearchScope.allScope(environment.project), LookupTracker.DO_NOTHING, PackagePartProvider.EMPTY,
-                LanguageVersion.LATEST
+                LanguageVersionSettingsImpl.DEFAULT
         )
 
         emptyModule.initialize(container.javaDescriptorResolver.packageFragmentProvider)

compiler/tests/org/jetbrains/kotlin/types/DefaultModalityModifiersTest.java

@@ -21,7 +21,7 @@ import kotlin.jvm.functions.Function1;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.kotlin.analyzer.AnalysisResult;
 import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment;
-import org.jetbrains.kotlin.config.LanguageVersion;
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl;
 import org.jetbrains.kotlin.context.ContextKt;
 import org.jetbrains.kotlin.context.ModuleContext;
 import org.jetbrains.kotlin.descriptors.*;
@@ -111,7 +111,7 @@ public class DefaultModalityModifiersTest extends KotlinTestWithEnvironment {
                                                             Collections.singleton(aClass.getContainingKtFile())),
                     new BindingTraceContext(),
                     TargetPlatform.Default.INSTANCE,
-                    LanguageVersion.LATEST
+                    LanguageVersionSettingsImpl.DEFAULT
             );
 
             return (ClassDescriptorWithResolutionScopes) resolveSession.getClassDescriptor(aClass, NoLookupLocation.FROM_TEST);

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

@@ -20,7 +20,7 @@ import com.intellij.openapi.roots.OrderRootType
 import com.intellij.psi.search.GlobalSearchScope
 import com.intellij.util.PathUtil
 import org.jetbrains.kotlin.analyzer.*
-import org.jetbrains.kotlin.config.LanguageVersion
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.container.get
 import org.jetbrains.kotlin.context.ModuleContext
 import org.jetbrains.kotlin.descriptors.PackagePartProvider
@@ -57,7 +57,7 @@ object JsAnalyzerFacade : AnalyzerFacade<PlatformAnalysisParameters>() {
 
         val container = createContainerForLazyResolve(
                 moduleContext, declarationProviderFactory, BindingTraceContext(), JsPlatform, targetEnvironment,
-                LanguageVersion.LATEST // TODO: see KT-12410
+                LanguageVersionSettingsImpl.DEFAULT // TODO: see KT-12410
         )
         var packageFragmentProvider = container.get<ResolveSession>().packageFragmentProvider
 

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

@@ -23,7 +23,7 @@ import com.intellij.openapi.project.Project
 import com.intellij.psi.PsiElement
 import com.intellij.psi.util.PsiTreeUtil
 import org.jetbrains.kotlin.analyzer.AnalysisResult
-import org.jetbrains.kotlin.config.LanguageVersion
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.container.ComponentProvider
 import org.jetbrains.kotlin.container.get
 import org.jetbrains.kotlin.context.GlobalContext
@@ -173,7 +173,7 @@ private object KotlinResolveDataProvider {
                     trace,
                     targetPlatform,
                     componentProvider.get<BodyResolveCache>(),
-                    LanguageVersion.LATEST // TODO: see KT-12410
+                    LanguageVersionSettingsImpl.DEFAULT // TODO: see KT-12410
             ).get<LazyTopDownAnalyzerForTopLevel>()
 
             lazyTopDownAnalyzer.analyzeDeclarations(

idea/idea-analysis/src/org/jetbrains/kotlin/idea/decompiler/navigation/SourceNavigationHelper.java

@@ -40,7 +40,7 @@ import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.annotations.TestOnly;
 import org.jetbrains.kotlin.builtins.DefaultBuiltIns;
-import org.jetbrains.kotlin.config.LanguageVersion;
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl;
 import org.jetbrains.kotlin.context.ContextKt;
 import org.jetbrains.kotlin.context.MutableModuleContext;
 import org.jetbrains.kotlin.descriptors.CallableDescriptor;
@@ -260,7 +260,7 @@ public class SourceNavigationHelper {
                 providerFactory,
                 new BindingTraceContext(),
                 platform,
-                LanguageVersion.LATEST // TODO: see KT-12410
+                LanguageVersionSettingsImpl.DEFAULT // TODO: see KT-12410
         );
 
         newModuleContext.initializeModuleContents(resolveSession.getPackageFragmentProvider());

idea/idea-analysis/src/org/jetbrains/kotlin/idea/project/ResolveElementCache.kt

@@ -23,7 +23,7 @@ import com.intellij.psi.util.CachedValuesManager
 import com.intellij.psi.util.PsiModificationTracker
 import com.intellij.util.containers.ContainerUtil
 import org.jetbrains.kotlin.cfg.ControlFlowInformationProvider
-import org.jetbrains.kotlin.config.LanguageVersion
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.container.get
 import org.jetbrains.kotlin.context.SimpleGlobalContext
 import org.jetbrains.kotlin.context.withModule
@@ -590,7 +590,7 @@ class ResolveElementCache(
                 trace,
                 targetPlatform,
                 statementFilter,
-                LanguageVersion.LATEST // TODO: see KT-12410
+                LanguageVersionSettingsImpl.DEFAULT // TODO: see KT-12410
         ).get<BodyResolver>()
     }
 

js/js.frontend/src/org/jetbrains/kotlin/js/analyze/TopDownAnalyzerFacadeForJS.java

@@ -18,7 +18,7 @@ package org.jetbrains.kotlin.js.analyze;
 
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.kotlin.config.CommonConfigurationKeys;
-import org.jetbrains.kotlin.config.LanguageVersion;
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl;
 import org.jetbrains.kotlin.context.ContextKt;
 import org.jetbrains.kotlin.context.ModuleContext;
 import org.jetbrains.kotlin.context.MutableModuleContext;
@@ -78,7 +78,7 @@ public final class TopDownAnalyzerFacadeForJS {
         LazyTopDownAnalyzerForTopLevel analyzerForJs = InjectionKt.createTopDownAnalyzerForJs(
                 moduleContext, trace,
                 new FileBasedDeclarationProviderFactory(moduleContext.getStorageManager(), allFiles),
-                config.getConfiguration().get(CommonConfigurationKeys.LANGUAGE_FEATURE_SETTINGS, LanguageVersion.LATEST)
+                config.getConfiguration().get(CommonConfigurationKeys.LANGUAGE_FEATURE_SETTINGS, LanguageVersionSettingsImpl.DEFAULT)
         );
         analyzerForJs.analyzeFiles(TopDownAnalysisMode.TopLevelDeclarations, files, Collections.<PackageFragmentProvider>emptyList());
         return JsAnalysisResult.success(trace, moduleContext.getModule());