File class lowering

compiler/ir/backend.jvm/backend.jvm.iml

@@ -11,5 +11,7 @@
     <orderEntry type="module" module-name="ir.tree" />
     <orderEntry type="module" module-name="frontend" />
     <orderEntry type="module" module-name="backend" />
+    <orderEntry type="module" module-name="ir.psi2ir" />
+    <orderEntry type="module" module-name="frontend.java" />
   </component>
 </module>

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmBackend.kt

@@ -0,0 +1,39 @@
+/*
+ * 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.backend.jvm
+
+import org.jetbrains.kotlin.ir.declarations.IrClass
+import org.jetbrains.kotlin.ir.declarations.IrFile
+import org.jetbrains.kotlin.ir.util.render
+import java.lang.AssertionError
+
+class JvmBackend(context: JvmBackendContext) {
+    private val lower = JvmLower(context)
+    private val codegen = JvmCodegen(context)
+
+    fun generateFile(irFile: IrFile) {
+        val loweredFile = lower.lower(irFile)
+
+        for (loweredClass in loweredFile.declarations) {
+            if (loweredClass !is IrClass) {
+                throw AssertionError("File-level declaration should be IrClass after JvmLower, got: " + loweredClass.render())
+            }
+
+            codegen.generateClass(loweredClass)
+        }
+    }
+}

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmBackendContext.kt

@@ -0,0 +1,25 @@
+/*
+ * 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.backend.jvm
+
+import org.jetbrains.kotlin.backend.jvm.lower.JvmFileClassProvider
+import org.jetbrains.kotlin.codegen.state.GenerationState
+
+class JvmBackendContext(
+        val state: GenerationState,
+        val jvmFileClassProvider: JvmFileClassProvider
+        )

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmBackendFacade.kt

@@ -16,10 +16,13 @@
 
 package org.jetbrains.kotlin.backend.jvm
 
+import org.jetbrains.kotlin.backend.jvm.lower.JvmFileClassProvider
 import org.jetbrains.kotlin.codegen.CompilationErrorHandler
 import org.jetbrains.kotlin.codegen.state.GenerationState
 import org.jetbrains.kotlin.progress.ProgressIndicatorAndCompilationCanceledStatus
 import org.jetbrains.kotlin.psi.KtFile
+import org.jetbrains.kotlin.psi2ir.Psi2IrTranslator
+import org.jetbrains.kotlin.psi2ir.generators.GeneratorContext
 
 object JvmBackendFacade {
     fun compileCorrectFiles(state: GenerationState, errorHandler: CompilationErrorHandler) {
@@ -30,6 +33,33 @@ object JvmBackendFacade {
     }
 
     fun doGenerateFiles(files: Collection<KtFile>, state: GenerationState, errorHandler: CompilationErrorHandler) {
-        // TODO
+        // TODO multifile classes support
+
+        val psi2ir = Psi2IrTranslator()
+        val psi2irContext = psi2ir.createGeneratorContext(state.module, state.bindingContext)
+        val jvmBackendContext = createJvmBackendContext(psi2ir, state)
+
+        val jvmBackend = JvmBackend(jvmBackendContext)
+
+        val irModuleFragment = psi2ir.generateModuleFragment(psi2irContext, files)
+
+        for (ktFile in irModuleFragment.files) {
+            try {
+                jvmBackend.generateFile(ktFile)
+                state.afterIndependentPart()
+            }
+            catch (e: Throwable) {
+                errorHandler.reportException(e, null) // TODO ktFile.virtualFile.url
+            }
+        }
+    }
+
+    private fun createJvmBackendContext(psi2ir: Psi2IrTranslator, state: GenerationState): JvmBackendContext {
+        val jvmFileClassProvider = JvmFileClassProvider()
+        psi2ir.add(jvmFileClassProvider)
+
+        val jvmBackendContext = JvmBackendContext(state, jvmFileClassProvider)
+
+        return jvmBackendContext
     }
 }

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmCodegen.kt

@@ -0,0 +1,25 @@
+/*
+ * 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.backend.jvm
+
+import org.jetbrains.kotlin.ir.declarations.IrClass
+
+class JvmCodegen(val context: JvmBackendContext) {
+    fun generateClass(irClass: IrClass) {
+        // TODO
+    }
+}

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmLower.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.backend.jvm
+
+import org.jetbrains.kotlin.backend.jvm.lower.FileClassLowering
+import org.jetbrains.kotlin.ir.declarations.IrFile
+
+class JvmLower(val context: JvmBackendContext) {
+    fun lower(irFile: IrFile): IrFile {
+        var newIrFile = irFile
+
+        newIrFile = FileClassLowering(context).lower(newIrFile)
+
+        return newIrFile
+    }
+}

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/FileClassDescriptor.kt

@@ -0,0 +1,70 @@
+/*
+ * 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.backend.jvm.lower
+
+import org.jetbrains.kotlin.descriptors.*
+import org.jetbrains.kotlin.descriptors.annotations.Annotations
+import org.jetbrains.kotlin.name.Name
+import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameUnsafe
+import org.jetbrains.kotlin.resolve.scopes.MemberScope
+import org.jetbrains.kotlin.types.*
+
+interface FileClassDescriptor : ClassDescriptor
+
+class FileClassDescriptorImpl(
+        private val nameImpl: Name,
+        private val containingDeclarationImpl: PackageFragmentDescriptor,
+        private val sourceElement: SourceElement
+) : FileClassDescriptor {
+    override fun getCompanionObjectDescriptor(): ClassDescriptor? = null
+    override fun getConstructors(): Collection<ConstructorDescriptor> = emptyList()
+    override fun getContainingDeclaration(): DeclarationDescriptor = containingDeclarationImpl
+    override fun getDeclaredTypeParameters(): List<TypeParameterDescriptor> = emptyList()
+    override fun getDefaultType(): SimpleType = ErrorUtils.createErrorType("File class type for $nameImpl")
+    override fun getKind(): ClassKind = ClassKind.CLASS
+    override fun getMemberScope(typeArguments: MutableList<out TypeProjection>): MemberScope = error("File class has no member scope")
+    override fun getMemberScope(typeSubstitution: TypeSubstitution): MemberScope = error("File class has no member scope")
+    override fun getModality(): Modality = Modality.FINAL
+    override fun getOriginal(): ClassDescriptor = this
+    override fun getName(): Name = nameImpl
+    override fun getStaticScope(): MemberScope = error("File class has no static scope")
+    override fun getThisAsReceiverParameter(): ReceiverParameterDescriptor = error("File class has no instances")
+    override fun getUnsubstitutedInnerClassesScope(): MemberScope = error("File class has no inner classes scope")
+    override fun getUnsubstitutedMemberScope(): MemberScope = error("File class has no member scope")
+    override fun getUnsubstitutedPrimaryConstructor(): ConstructorDescriptor? = null
+    override fun getVisibility(): Visibility = Visibilities.PUBLIC
+    override fun isCompanionObject(): Boolean = false
+    override fun isData(): Boolean = false
+    override fun substitute(substitutor: TypeSubstitutor): ClassDescriptor = error("File class can't be substituted")
+    override fun getSource(): SourceElement = sourceElement
+    override fun getTypeConstructor(): TypeConstructor = error("File class can't be used in types")
+    override fun isInner(): Boolean = false
+
+    override fun <R : Any?, D : Any?> accept(visitor: DeclarationDescriptorVisitor<R, D>, data: D): R {
+        return visitor.visitClassDescriptor(this, data)
+    }
+
+    override fun acceptVoid(visitor: DeclarationDescriptorVisitor<Void, Void>) {
+        visitor.visitClassDescriptor(this, null)
+    }
+
+    override val annotations: Annotations
+        get() = TODO("not implemented")
+
+    override fun toString(): String =
+            "IrFileClassDescriptor($fqNameUnsafe)"
+}

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/FileClassLowering.kt

@@ -0,0 +1,51 @@
+/*
+ * 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.backend.jvm.lower
+
+import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
+import org.jetbrains.kotlin.ir.declarations.IrClass
+import org.jetbrains.kotlin.ir.declarations.IrDeclaration
+import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
+import org.jetbrains.kotlin.ir.declarations.IrFile
+import org.jetbrains.kotlin.ir.declarations.impl.IrClassImpl
+import java.util.*
+
+class FileClassLowering(val context: JvmBackendContext) {
+    fun lower(irFile: IrFile): IrFile {
+        val classes = ArrayList<IrClass>()
+        val fileClassMembers = ArrayList<IrDeclaration>()
+
+        irFile.declarations.forEach {
+            if (it is IrClass)
+                classes.add(it)
+            else
+                fileClassMembers.add(it)
+        }
+
+        if (fileClassMembers.isEmpty()) return irFile
+
+        val fileClassDescriptor = context.jvmFileClassProvider.createFileClassDescriptor(irFile.fileEntry, irFile.packageFragmentDescriptor)
+
+        val irFileClass = IrClassImpl(0, irFile.fileEntry.maxOffset, IrDeclarationOrigin.DEFINED, fileClassDescriptor, fileClassMembers)
+        classes.add(irFileClass)
+
+        val newIrFile = irFile.toBuilder().apply { declarations.clear(); declarations.addAll(classes) }.build()
+
+        return newIrFile
+    }
+}
+

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/JvmFileClassProvider.kt

@@ -0,0 +1,61 @@
+/*
+ * 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.backend.jvm.lower
+
+import org.jetbrains.kotlin.descriptors.PackageFragmentDescriptor
+import org.jetbrains.kotlin.descriptors.SourceElement
+import org.jetbrains.kotlin.fileClasses.JvmFileClassInfo
+import org.jetbrains.kotlin.fileClasses.JvmFileClassUtil
+import org.jetbrains.kotlin.ir.IrElement
+import org.jetbrains.kotlin.ir.SourceManager
+import org.jetbrains.kotlin.ir.declarations.IrFile
+import org.jetbrains.kotlin.ir.declarations.IrModuleFragment
+import org.jetbrains.kotlin.psi.KtFile
+import org.jetbrains.kotlin.psi2ir.Psi2IrTranslator
+import org.jetbrains.kotlin.psi2ir.PsiSourceManager
+import org.jetbrains.kotlin.psi2ir.generators.GeneratorContext
+import java.lang.AssertionError
+import java.util.*
+
+class JvmFileClassProvider : Psi2IrTranslator.PostprocessingStep {
+    override fun postprocess(context: GeneratorContext, irElement: IrElement) {
+        when (irElement) {
+            is IrModuleFragment ->
+                irElement.files.forEach { postprocess(context, it) }
+            is IrFile ->
+                recordFileClassInfo(context, irElement)
+        }
+    }
+
+    private val fileClassInfoByFileEntry = HashMap<SourceManager.FileEntry, JvmFileClassInfo>()
+
+    private fun recordFileClassInfo(context: GeneratorContext, irFile: IrFile) {
+        val jvmFileClassInfo = context.sourceManager.getFileClassInfo(irFile.fileEntry)
+        fileClassInfoByFileEntry[irFile.fileEntry] = jvmFileClassInfo
+    }
+
+    private fun PsiSourceManager.getKtFile(fileEntry: SourceManager.FileEntry) =
+            getPsiFile(fileEntry as PsiSourceManager.PsiFileEntry) as KtFile
+
+    private fun PsiSourceManager.getFileClassInfo(fileEntry: SourceManager.FileEntry): JvmFileClassInfo =
+            JvmFileClassUtil.getFileClassInfoNoResolve(getKtFile(fileEntry))
+
+    fun createFileClassDescriptor(fileEntry: SourceManager.FileEntry, packageFragment: PackageFragmentDescriptor): FileClassDescriptor {
+        val fileClassInfo = fileClassInfoByFileEntry[fileEntry] ?: throw AssertionError("No file class info for ${fileEntry.name})")
+        return FileClassDescriptorImpl(fileClassInfo.fileClassFqName.shortName(), packageFragment, SourceElement.NO_SOURCE)
+    }
+}

compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/Psi2IrConfiguration.kt

@@ -17,5 +17,5 @@
 package org.jetbrains.kotlin.psi2ir
 
 class Psi2IrConfiguration(
-        val ignoreErrors: Boolean
+        val ignoreErrors: Boolean = false
 )

compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/Psi2IrTranslator.kt

@@ -16,7 +16,6 @@
 
 package org.jetbrains.kotlin.psi2ir
 
-import org.jetbrains.kotlin.builtins.KotlinBuiltIns
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
 import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.declarations.IrModuleFragment
@@ -25,23 +24,36 @@ import org.jetbrains.kotlin.psi2ir.generators.GeneratorContext
 import org.jetbrains.kotlin.psi2ir.generators.ModuleGenerator
 import org.jetbrains.kotlin.psi2ir.transformations.insertImplicitCasts
 import org.jetbrains.kotlin.resolve.BindingContext
+import org.jetbrains.kotlin.utils.SmartList
 
-class Psi2IrTranslator(val configuration: Psi2IrConfiguration) {
-    fun generateModule(moduleDescriptor: ModuleDescriptor, ktFiles: List<KtFile>, bindingContext: BindingContext): IrModuleFragment {
-        val context = GeneratorContext(configuration, moduleDescriptor, bindingContext)
+class Psi2IrTranslator(val configuration: Psi2IrConfiguration = Psi2IrConfiguration()) {
+    interface PostprocessingStep {
+        fun postprocess(context: GeneratorContext, irElement: IrElement)
+    }
+
+    private val postprocessingSteps = SmartList<PostprocessingStep>()
+
+    fun add(step: PostprocessingStep) {
+        postprocessingSteps.add(step)
+    }
+
+    fun generateModule(moduleDescriptor: ModuleDescriptor, ktFiles: Collection<KtFile>, bindingContext: BindingContext): IrModuleFragment {
+        val context = createGeneratorContext(moduleDescriptor, bindingContext)
+        return generateModuleFragment(context, ktFiles)
+    }
+
+    fun createGeneratorContext(moduleDescriptor: ModuleDescriptor, bindingContext: BindingContext) =
+            GeneratorContext(configuration, moduleDescriptor, bindingContext)
+
+    fun generateModuleFragment(context: GeneratorContext, ktFiles: Collection<KtFile>): IrModuleFragment {
         val irModule = ModuleGenerator(context).generateModuleFragment(ktFiles)
-        postprocess(irModule.descriptor.builtIns, irModule)
+        postprocess(context, irModule)
         return irModule
     }
 
-    fun generateSingleFileFragment(moduleDescriptor: ModuleDescriptor, ktFile: KtFile, bindingContext: BindingContext): IrModuleFragment {
-        val context = GeneratorContext(configuration, moduleDescriptor, bindingContext)
-        val irFileFragment = ModuleGenerator(context).generateSingleFileFragment(ktFile)
-        postprocess(moduleDescriptor.builtIns, irFileFragment)
-        return irFileFragment
-    }
+    private fun postprocess(context: GeneratorContext, irElement: IrElement) {
+        insertImplicitCasts(context.builtIns, irElement)
 
-    private fun postprocess(builtIns: KotlinBuiltIns, irElement: IrElement) {
-        insertImplicitCasts(builtIns, irElement)
+        postprocessingSteps.forEach { it.postprocess(context, irElement) }
     }
 }

compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/PsiSourceManager.kt

@@ -69,11 +69,13 @@ class PsiSourceManager : SourceManager {
 
     private val fileEntriesByPsiFile = HashMap<PsiFile, PsiFileEntry>()
     private val fileEntriesByIrFile = HashMap<IrFile, PsiFileEntry>()
+    private val psiFileByFileEntry = HashMap<PsiFileEntry, PsiFile>()
 
     fun createFileEntry(psiFile: PsiFile): PsiFileEntry {
         if (psiFile in fileEntriesByPsiFile) error("PsiFileEntry is already created for $psiFile")
         val newEntry = PsiFileEntry(psiFile)
         fileEntriesByPsiFile[psiFile] = newEntry
+        psiFileByFileEntry[newEntry] = psiFile
         return newEntry
     }
 
@@ -87,6 +89,9 @@ class PsiSourceManager : SourceManager {
     fun getFileEntry(psiFile: PsiFile): PsiFileEntry? =
             fileEntriesByPsiFile[psiFile]
 
+    fun getPsiFile(fileEntry: PsiFileEntry) =
+            psiFileByFileEntry[fileEntry]
+
     override fun getFileEntry(irFile: IrFile): SourceManager.FileEntry =
             fileEntriesByIrFile[irFile]!!
 }

compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/GeneratorContext.kt

@@ -30,7 +30,6 @@ class GeneratorContext(
         val bindingContext: BindingContext
 ) {
     val sourceManager = PsiSourceManager()
-    val syntheticDescriptorsFactory = SyntheticDescriptorsFactory()
 
     val reflectionTypes = ReflectionTypes(moduleDescriptor)
     val builtIns: KotlinBuiltIns get() = moduleDescriptor.builtIns

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/IrFile.kt

@@ -18,8 +18,10 @@ package org.jetbrains.kotlin.ir.declarations
 
 import org.jetbrains.kotlin.descriptors.PackageFragmentDescriptor
 import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
+import org.jetbrains.kotlin.descriptors.annotations.checkAnnotationName
 import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.SourceManager
+import org.jetbrains.kotlin.name.FqName
 
 interface IrFile : IrElement, IrDeclarationContainer {
     val fileEntry: SourceManager.FileEntry
@@ -37,4 +39,7 @@ interface IrFile : IrElement, IrDeclarationContainer {
     }
 }
 
-val IrFile.name: String get() = fileEntry.name
+val IrFile.name: String get() = fileEntry.name
+
+fun IrFile.findAnnotationsByFqName(fqName: FqName) =
+        fileAnnotations.filter { checkAnnotationName(it, fqName) }

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrClassImpl.kt

@@ -73,10 +73,10 @@ class IrClassImpl(
 }
 
 class IrClassBuilderImpl(
-        override val startOffset: Int,
-        override val endOffset: Int,
+        override var startOffset: Int,
+        override var endOffset: Int,
         override var origin: IrDeclarationOrigin,
-        override val descriptor: ClassDescriptor,
+        override var descriptor: ClassDescriptor,
         override val declarations: MutableList<IrDeclaration>
 ) : IrClass.Builder {
     constructor(irClass: IrClass) : this(irClass.startOffset, irClass.endOffset, irClass.origin, irClass.descriptor,

core/descriptors/src/org/jetbrains/kotlin/descriptors/annotations/Annotations.kt

@@ -75,7 +75,7 @@ interface Annotations : Iterable<AnnotationDescriptor> {
     }
 }
 
-private fun checkAnnotationName(annotation: AnnotationDescriptor, fqName: FqName): Boolean {
+fun checkAnnotationName(annotation: AnnotationDescriptor, fqName: FqName): Boolean {
     val descriptor = annotation.type.constructor.declarationDescriptor
     return descriptor is ClassDescriptor && fqName.toUnsafe() == DescriptorUtils.getFqName(descriptor)
 }

core/descriptors/src/org/jetbrains/kotlin/resolve/DescriptorUtils.java

@@ -520,7 +520,11 @@ public class DescriptorUtils {
 
     @Nullable
     public static String getJvmName(@NotNull Annotated annotated) {
-        AnnotationDescriptor jvmNameAnnotation = getAnnotationByFqName(annotated.getAnnotations(), JVM_NAME);
+        return getJvmName(getJvmNameAnnotation(annotated));
+    }
+
+    @Nullable
+    public static String getJvmName(@Nullable AnnotationDescriptor jvmNameAnnotation) {
         if (jvmNameAnnotation == null) return null;
 
         Map<ValueParameterDescriptor, ConstantValue<?>> arguments = jvmNameAnnotation.getAllValueArguments();