Kotlin Facet: Use facet configuration to provide language version for IDE analyzer

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

@@ -19,7 +19,6 @@ package org.jetbrains.kotlin.resolve.jvm
 import com.intellij.openapi.diagnostic.Logger
 import com.intellij.psi.search.GlobalSearchScope
 import org.jetbrains.kotlin.analyzer.*
-import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.container.get
 import org.jetbrains.kotlin.context.ModuleContext
 import org.jetbrains.kotlin.descriptors.PackagePartProvider
@@ -88,7 +87,7 @@ object JvmAnalyzerFacade : AnalyzerFacade<JvmPlatformParameters>() {
                 targetEnvironment,
                 LookupTracker.DO_NOTHING,
                 packagePartProvider,
-                LanguageVersionSettingsImpl.DEFAULT, // TODO: see KT-12410
+                LanguageVersionSettingsProvider.getInstance(project).getLanguageVersionSettings(moduleInfo),
                 useBuiltInsProvider = false, // TODO: load built-ins from module dependencies in IDE
                 useLazyResolve = true
         )

compiler/frontend/src/org/jetbrains/kotlin/analyzer/AnalyzerFacade.kt

@@ -16,9 +16,13 @@
 
 package org.jetbrains.kotlin.analyzer
 
+import com.intellij.openapi.components.ServiceManager
+import com.intellij.openapi.project.Project
 import com.intellij.psi.search.GlobalSearchScope
 import org.jetbrains.kotlin.builtins.DefaultBuiltIns
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns
+import org.jetbrains.kotlin.config.LanguageVersionSettings
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.container.ComponentProvider
 import org.jetbrains.kotlin.context.ModuleContext
 import org.jetbrains.kotlin.context.ProjectContext
@@ -246,3 +250,15 @@ private class DelegatingPackageFragmentProvider(
         return delegate().getSubPackagesOf(fqName, nameFilter)
     }
 }
+
+interface LanguageVersionSettingsProvider {
+    fun getLanguageVersionSettings(moduleInfo: ModuleInfo): LanguageVersionSettings
+
+    object Default : LanguageVersionSettingsProvider {
+        override fun getLanguageVersionSettings(moduleInfo: ModuleInfo) = LanguageVersionSettingsImpl.DEFAULT
+    }
+
+    companion object {
+        fun getInstance(project: Project) = ServiceManager.getService(project, LanguageVersionSettingsProvider::class.java) ?: Default
+    }
+}

compiler/util/src/org/jetbrains/kotlin/config/LanguageVersionSettings.kt

@@ -16,6 +16,7 @@
 
 package org.jetbrains.kotlin.config
 
+import com.intellij.openapi.module.Module
 import org.jetbrains.kotlin.config.LanguageVersion.KOTLIN_1_1
 import org.jetbrains.kotlin.utils.DescriptionAware
 

idea/idea-analysis/idea-analysis.iml

@@ -32,5 +32,6 @@
     <orderEntry type="module" module-name="ide-common" exported="" />
     <orderEntry type="module" module-name="util" />
     <orderEntry type="module" module-name="idea-core" />
+    <orderEntry type="module" module-name="idea-jps-common" />
   </component>
 </module>

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

@@ -20,7 +20,6 @@ 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.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.container.get
 import org.jetbrains.kotlin.context.ModuleContext
 import org.jetbrains.kotlin.descriptors.PackagePartProvider
@@ -57,8 +56,12 @@ object JsAnalyzerFacade : AnalyzerFacade<PlatformAnalysisParameters>() {
         )
 
         val container = createContainerForLazyResolve(
-                moduleContext, declarationProviderFactory, BindingTraceContext(), JsPlatform, targetEnvironment,
+                moduleContext,
-                LanguageVersionSettingsImpl.DEFAULT // TODO: see KT-12410
+                declarationProviderFactory,
+                BindingTraceContext(),
+                JsPlatform,
+                targetEnvironment,
+                LanguageVersionSettingsProvider.getInstance(project).getLanguageVersionSettings(moduleInfo)
         )
         var packageFragmentProvider = container.get<ResolveSession>().packageFragmentProvider
 

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

@@ -23,7 +23,6 @@ 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.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.container.ComponentProvider
 import org.jetbrains.kotlin.container.get
 import org.jetbrains.kotlin.context.GlobalContext
@@ -33,6 +32,7 @@ import org.jetbrains.kotlin.descriptors.ModuleDescriptor
 import org.jetbrains.kotlin.diagnostics.DiagnosticUtils
 import org.jetbrains.kotlin.frontend.di.createContainerForLazyBodyResolve
 import org.jetbrains.kotlin.idea.project.TargetPlatformDetector
+import org.jetbrains.kotlin.idea.project.languageVersionSettings
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.psi.psiUtil.parentsWithSelf
 import org.jetbrains.kotlin.resolve.*
@@ -173,7 +173,7 @@ private object KotlinResolveDataProvider {
                     trace,
                     targetPlatform,
                     componentProvider.get<BodyResolveCache>(),
-                    LanguageVersionSettingsImpl.DEFAULT // TODO: see KT-12410
+                    analyzableElement.languageVersionSettings
             ).get<LazyTopDownAnalyzer>()
 
             lazyTopDownAnalyzer.analyzeDeclarations(TopDownAnalysisMode.TopLevelDeclarations, listOf(analyzableElement))

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

@@ -251,7 +251,7 @@ public class SourceNavigationHelper {
                 providerFactory,
                 new BindingTraceContext(),
                 TargetPlatform.Default.INSTANCE,
-                LanguageVersionSettingsImpl.DEFAULT // TODO: see KT-12410
+                LanguageVersionSettingsImpl.DEFAULT
         );
 
         newModuleContext.initializeModuleContents(resolveSession.getPackageFragmentProvider());

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

@@ -16,7 +16,10 @@
 
 package org.jetbrains.kotlin.idea.project
 
+import com.intellij.openapi.module.Module
+import com.intellij.openapi.module.ModuleUtilCore
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns
+import org.jetbrains.kotlin.config.*
 import org.jetbrains.kotlin.idea.caches.resolve.getResolutionFacade
 import org.jetbrains.kotlin.psi.KtElement
 import org.jetbrains.kotlin.resolve.TargetPlatform
@@ -26,3 +29,14 @@ val KtElement.platform: TargetPlatform
 
 val KtElement.builtIns: KotlinBuiltIns
     get() = getResolutionFacade().moduleDescriptor.builtIns
+
+val Module.languageVersionSettings: LanguageVersionSettings
+    get() {
+        val versionInfo = KotlinFacetSettingsProvider.getInstance(project).getSettings(this).versionInfo
+        val languageVersion = versionInfo.languageLevel ?: LanguageVersion.LATEST
+        val apiVersion = versionInfo.apiLevel ?: languageVersion
+        return LanguageVersionSettingsImpl(languageVersion, ApiVersion.createByLanguageVersion(apiVersion))
+    }
+
+val KtElement.languageVersionSettings: LanguageVersionSettings
+    get() = ModuleUtilCore.findModuleForPsiElement(this)?.languageVersionSettings ?: LanguageVersionSettingsImpl.DEFAULT

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

@@ -23,7 +23,6 @@ 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.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.container.get
 import org.jetbrains.kotlin.context.SimpleGlobalContext
 import org.jetbrains.kotlin.context.withModule
@@ -588,7 +587,7 @@ class ResolveElementCache(
                 trace,
                 targetPlatform,
                 statementFilter,
-                LanguageVersionSettingsImpl.DEFAULT // TODO: see KT-12410
+                file.languageVersionSettings
         ).get<BodyResolver>()
     }
 

idea/idea-jps-common/src/org/jetbrains/kotlin/config/KotlinFacetSettings.kt

@@ -32,6 +32,9 @@
 
 package org.jetbrains.kotlin.config
 
+import com.intellij.openapi.components.ServiceManager
+import com.intellij.openapi.module.Module
+import com.intellij.openapi.project.Project
 import com.intellij.util.xmlb.annotations.Property
 import com.intellij.util.xmlb.annotations.Transient
 import org.jetbrains.kotlin.cli.common.arguments.CommonCompilerArguments
@@ -92,3 +95,11 @@ class KotlinFacetSettings {
     var versionInfo = KotlinVersionInfo()
     var compilerInfo = KotlinCompilerInfo()
 }
+
+interface KotlinFacetSettingsProvider {
+    fun getSettings(module: Module): KotlinFacetSettings
+
+    companion object {
+        fun getInstance(project: Project) = ServiceManager.getService(project, KotlinFacetSettingsProvider::class.java)!!
+    }
+}

idea/src/META-INF/plugin.xml

@@ -294,6 +294,12 @@
     <projectService serviceInterface="org.jetbrains.kotlin.console.KotlinConsoleKeeper"
                     serviceImplementation="org.jetbrains.kotlin.console.KotlinConsoleKeeper"/>
 
+    <projectService serviceInterface="org.jetbrains.kotlin.analyzer.LanguageVersionSettingsProvider"
+                    serviceImplementation="org.jetbrains.kotlin.idea.compiler.LanguageVersionSettingsProviderImpl"/>
+
+    <projectService serviceInterface="org.jetbrains.kotlin.config.KotlinFacetSettingsProvider"
+                    serviceImplementation="org.jetbrains.kotlin.idea.facet.KotlinFacetSettingsProviderImpl"/>
+
     <errorHandler implementation="org.jetbrains.kotlin.idea.reporter.KotlinReportSubmitter"/>
 
     <internalFileTemplate name="Kotlin File"/>

idea/src/org/jetbrains/kotlin/idea/compiler/LanguageVersionSettingsProviderImpl.kt

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2010-2016 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.
+ */
+
+package org.jetbrains.kotlin.idea.compiler
+
+import org.jetbrains.kotlin.analyzer.LanguageVersionSettingsProvider
+import org.jetbrains.kotlin.analyzer.ModuleInfo
+import org.jetbrains.kotlin.config.LanguageVersionSettings
+import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
+import org.jetbrains.kotlin.idea.caches.resolve.ModuleSourceInfo
+import org.jetbrains.kotlin.idea.project.languageVersionSettings
+
+class LanguageVersionSettingsProviderImpl : LanguageVersionSettingsProvider {
+    override fun getLanguageVersionSettings(moduleInfo: ModuleInfo): LanguageVersionSettings {
+        return (moduleInfo as? ModuleSourceInfo)?.module?.languageVersionSettings ?: LanguageVersionSettingsImpl.DEFAULT
+    }
+}

idea/src/org/jetbrains/kotlin/idea/facet/KotlinFacetSettingsProviderImpl.kt

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2010-2016 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.
+ */
+
+package org.jetbrains.kotlin.idea.facet
+
+import com.intellij.openapi.module.Module
+import org.jetbrains.kotlin.config.KotlinFacetSettings
+import org.jetbrains.kotlin.config.KotlinFacetSettingsProvider
+
+class KotlinFacetSettingsProviderImpl : KotlinFacetSettingsProvider {
+    override fun getSettings(module: Module): KotlinFacetSettings {
+        val settings = KotlinFacet.get(module)?.configuration?.state ?: KotlinFacetSettings()
+        settings.initializeIfNeeded(module, null)
+        return settings
+    }
+}

idea/src/org/jetbrains/kotlin/idea/facet/facetUtils.kt

@@ -129,12 +129,6 @@ internal fun KotlinFacetSettings.initializeIfNeeded(module: Module, rootModel: M
     }
 }
 
-internal fun Module.getKotlinSettings(rootModel: ModuleRootModel? = null): KotlinFacetSettings {
-    val settings = KotlinFacet.get(this)?.configuration?.state ?: KotlinFacetSettings()
-    settings.initializeIfNeeded(this, rootModel)
-    return settings
-}
-
 val TargetPlatformKind<*>.mavenLibraryId: String
     get() {
         return when (this) {