Static members completion works in smart completion + fixed incorrect finding of java method descriptor that caused duplicated items

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

@@ -20,6 +20,7 @@ package org.jetbrains.kotlin.idea.caches.resolve
 
 import com.intellij.psi.*
 import org.jetbrains.kotlin.descriptors.*
+import org.jetbrains.kotlin.idea.resolve.ResolutionFacade
 import org.jetbrains.kotlin.idea.util.ProjectRootsUtil
 import org.jetbrains.kotlin.incremental.components.NoLookupLocation
 import org.jetbrains.kotlin.load.java.sources.JavaSourceElement
@@ -47,6 +48,16 @@ fun PsiMethod.getJavaMethodDescriptor(): FunctionDescriptor? {
     }
 }
 
+fun PsiMethod.getJavaMethodDescriptor(resolutionFacade: ResolutionFacade): FunctionDescriptor? {
+    val method = originalElement as? PsiMethod ?: return null
+    if (method.containingClass == null || !Name.isValidIdentifier(method.name)) return null
+    val resolver = resolutionFacade.getFrontendService(method, JavaDescriptorResolver::class.java)
+    return when {
+        method.isConstructor -> resolver.resolveConstructor(JavaConstructorImpl(method))
+        else -> resolver.resolveMethod(JavaMethodImpl(method))
+    }
+}
+
 fun PsiClass.getJavaClassDescriptor(): ClassDescriptor? {
     val psiClass = originalElement as? PsiClass ?: return null
     return psiClass.getJavaDescriptorResolver()?.resolveClass(JavaClassImpl(psiClass))

idea/idea-completion/src/org/jetbrains/kotlin/idea/completion/BasicCompletionSession.kt

@@ -215,9 +215,9 @@ class BasicCompletionSession(
                 }
 
                 val staticMembersCompletion = StaticMembersCompletion(
-                        collector, prefixMatcher, resolutionFacade, lookupElementFactory, referenceVariants!!.imported, isJvmModule)
+                        prefixMatcher, resolutionFacade, lookupElementFactory, referenceVariants!!.imported, isJvmModule)
                 if (callTypeAndReceiver is CallTypeAndReceiver.DEFAULT) {
-                    staticMembersCompletion.completeFromImports(position.containingFile as KtFile)
+                    staticMembersCompletion.completeFromImports(file, collector)
                 }
 
                 completeNonImported(lookupElementFactory)
@@ -235,7 +235,7 @@ class BasicCompletionSession(
                 }
 
                 if (configuration.completeStaticMembers && callTypeAndReceiver is CallTypeAndReceiver.DEFAULT && prefix.isNotEmpty()) {
-                    staticMembersCompletion.completeFromIndices(indicesHelper(false))
+                    staticMembersCompletion.completeFromIndices(indicesHelper(false), collector)
                 }
             }
         }

idea/idea-completion/src/org/jetbrains/kotlin/idea/completion/CompletionSession.kt

@@ -75,7 +75,7 @@ abstract class CompletionSession(
         resultSet: CompletionResultSet
 ) {
     protected val position = parameters.getPosition()
-    private val file = position.getContainingFile() as KtFile
+    protected val file = position.getContainingFile() as KtFile
     protected val resolutionFacade = file.getResolutionFacade()
     protected val moduleDescriptor = resolutionFacade.moduleDescriptor
     protected val project = position.getProject()

idea/idea-completion/src/org/jetbrains/kotlin/idea/completion/LookupElementFactory.kt

@@ -42,6 +42,18 @@ import org.jetbrains.kotlin.types.TypeUtils
 import org.jetbrains.kotlin.types.typeUtil.isSubtypeOf
 import org.jetbrains.kotlin.utils.addIfNotNull
 
+interface AbstractLookupElementFactory {
+    fun createStandardLookupElementsForDescriptor(descriptor: DeclarationDescriptor, useReceiverTypes: Boolean): Collection<LookupElement>
+
+    fun createLookupElement(
+            descriptor: DeclarationDescriptor,
+            useReceiverTypes: Boolean,
+            qualifyNestedClasses: Boolean = false,
+            includeClassTypeArguments: Boolean = true,
+            parametersAndTypeGrayed: Boolean = false
+    ): LookupElement?
+}
+
 data /* we need copy() */
 class LookupElementFactory(
         val basicFactory: BasicLookupElementFactory,
@@ -50,7 +62,7 @@ class LookupElementFactory(
         private val inDescriptor: DeclarationDescriptor,
         private val contextVariablesProvider: ContextVariablesProvider,
         private val standardLookupElementsPostProcessor: (LookupElement) -> LookupElement = { it }
-) {
+) : AbstractLookupElementFactory {
     companion object {
         fun hasSingleFunctionTypeParameter(descriptor: FunctionDescriptor): Boolean {
             val parameter = descriptor.original.valueParameters.singleOrNull() ?: return false
@@ -69,7 +81,7 @@ class LookupElementFactory(
                 .toSet()
     }
 
-    public fun createStandardLookupElementsForDescriptor(descriptor: DeclarationDescriptor, useReceiverTypes: Boolean): Collection<LookupElement> {
+    override fun createStandardLookupElementsForDescriptor(descriptor: DeclarationDescriptor, useReceiverTypes: Boolean): Collection<LookupElement> {
         val result = SmartList<LookupElement>()
 
         val isNormalCall = callType == CallType.DEFAULT || callType == CallType.DOT || callType == CallType.SAFE || callType == CallType.SUPER_MEMBERS
@@ -197,12 +209,12 @@ class LookupElementFactory(
         }
     }
 
-    public fun createLookupElement(
+    override fun createLookupElement(
             descriptor: DeclarationDescriptor,
             useReceiverTypes: Boolean,
-            qualifyNestedClasses: Boolean = false,
-            includeClassTypeArguments: Boolean = true,
-            parametersAndTypeGrayed: Boolean = false
+            qualifyNestedClasses: Boolean,
+            includeClassTypeArguments: Boolean,
+            parametersAndTypeGrayed: Boolean
     ): LookupElement {
         var element = basicFactory.createLookupElement(descriptor, qualifyNestedClasses, includeClassTypeArguments, parametersAndTypeGrayed)
 

idea/idea-completion/src/org/jetbrains/kotlin/idea/completion/StaticMembersCompletion.kt

@@ -30,10 +30,10 @@ import org.jetbrains.kotlin.resolve.ImportedFromObjectCallableDescriptor
 import org.jetbrains.kotlin.resolve.scopes.DescriptorKindExclude
 import org.jetbrains.kotlin.resolve.scopes.DescriptorKindFilter
 import org.jetbrains.kotlin.resolve.scopes.getDescriptorsFiltered
+import org.jetbrains.kotlin.utils.addToStdlib.singletonOrEmptyList
 import java.util.*
 
 class StaticMembersCompletion(
-        private val collector: LookupElementsCollector,
         private val prefixMatcher: PrefixMatcher,
         private val resolutionFacade: ResolutionFacade,
         private val lookupElementFactory: LookupElementFactory,
@@ -44,8 +44,24 @@ class StaticMembersCompletion(
         if (it is ImportedFromObjectCallableDescriptor<*>) it.callableFromObject else it
     }
 
-    //TODO: include it in smart completion?
-    fun completeFromImports(file: KtFile) {
+    fun decoratedLookupElementFactory(itemPriority: ItemPriority): AbstractLookupElementFactory {
+        return object : AbstractLookupElementFactory {
+            override fun createStandardLookupElementsForDescriptor(descriptor: DeclarationDescriptor, useReceiverTypes: Boolean): Collection<LookupElement> {
+                if (!useReceiverTypes) return emptyList()
+                return lookupElementFactory.createLookupElement(descriptor, useReceiverTypes = false)
+                        .decorateAsStaticMember(descriptor, classNameAsLookupString = false)
+                        ?.assignPriority(itemPriority)
+                        ?.suppressAutoInsertion()
+                        .singletonOrEmptyList()
+            }
+
+            override fun createLookupElement(descriptor: DeclarationDescriptor, useReceiverTypes: Boolean,
+                                             qualifyNestedClasses: Boolean, includeClassTypeArguments: Boolean,
+                                             parametersAndTypeGrayed: Boolean) = null
+        }
+    }
+
+    fun membersFromImports(file: KtFile): Collection<DeclarationDescriptor> {
         val containers = file.importDirectives
                 .filter { !it.isAllUnder }
                 .map {
@@ -54,42 +70,46 @@ class StaticMembersCompletion(
                 .filterNotNull()
                 .toSet()
 
+        val result = ArrayList<DeclarationDescriptor>()
         for (container in containers) {
             val memberScope = if (container.kind == ClassKind.OBJECT) container.unsubstitutedMemberScope else container.staticScope
             val members = memberScope.getDescriptorsFiltered(DescriptorKindFilter.CALLABLES exclude DescriptorKindExclude.Extensions, prefixMatcher.asNameFilter())
-            for (member in members) {
-                if (member is CallableDescriptor) {
-                    addFromDescriptor(member, ItemPriority.STATIC_MEMBER_FROM_IMPORTS)
-                }
-            }
+            members.filterTo(result) { it is CallableDescriptor && it !in alreadyAdded } //TODO: substitution
         }
+        return result
     }
 
     //TODO: filter out those that are accessible from SmartCompletion.additionalItems
     //TODO: what about enum members?
     //TODO: better presentation for lookup elements from imports too
     //TODO: from the same file
-    fun completeFromIndices(indicesHelper: KotlinIndicesHelper) {
+
+    fun membersFromIndices(indicesHelper: KotlinIndicesHelper): Collection<DeclarationDescriptor> {
         val descriptorKindFilter = DescriptorKindFilter.CALLABLES exclude DescriptorKindExclude.Extensions
         val nameFilter: (String) -> Boolean = { prefixMatcher.prefixMatches(it) }
 
+        val result = ArrayList<DeclarationDescriptor>()
+
         if (isJvmModule) {
-            indicesHelper.getJavaStaticMembers(descriptorKindFilter, nameFilter).forEach { addFromDescriptor(it, ItemPriority.STATIC_MEMBER) }
+            indicesHelper.getJavaStaticMembers(descriptorKindFilter, nameFilter).filterTo(result) { it !in alreadyAdded }  //TODO: substitution
         }
 
-        indicesHelper.getObjectMembers(descriptorKindFilter, nameFilter).forEach { addFromDescriptor(it, ItemPriority.STATIC_MEMBER) }
+        indicesHelper.getObjectMembers(descriptorKindFilter, nameFilter).filterTo(result) { it !in alreadyAdded }  //TODO: substitution
+
+        return result
     }
 
-    private fun addFromDescriptor(member: CallableDescriptor, itemPriority: ItemPriority) {
-        if (member !in alreadyAdded) { //TODO: substitution
-            collector.addElement(createLookupElement(member, itemPriority) ?: return)
-        }
+    fun completeFromImports(file: KtFile, collector: LookupElementsCollector) {
+        val factory = decoratedLookupElementFactory(ItemPriority.STATIC_MEMBER_FROM_IMPORTS)
+        membersFromImports(file)
+                .flatMap { factory.createStandardLookupElementsForDescriptor(it, useReceiverTypes = true) }
+                .forEach { collector.addElement(it) }
     }
 
-    private fun createLookupElement(descriptor: CallableDescriptor, itemPriority: ItemPriority): LookupElement? {
-        return lookupElementFactory.createLookupElement(descriptor, useReceiverTypes = false)
-                .decorateAsStaticMember(descriptor, classNameAsLookupString = false)
-                ?.assignPriority(itemPriority)
-                ?.suppressAutoInsertion()
+    fun completeFromIndices(indicesHelper: KotlinIndicesHelper, collector: LookupElementsCollector) {
+        val factory = decoratedLookupElementFactory(ItemPriority.STATIC_MEMBER)
+        membersFromIndices(indicesHelper)
+                .flatMap { factory.createStandardLookupElementsForDescriptor(it, useReceiverTypes = true) }
+                .forEach { collector.addElement(it) }
     }
 }

idea/idea-completion/src/org/jetbrains/kotlin/idea/completion/smart/SmartCompletion.kt

@@ -83,9 +83,9 @@ class SmartCompletion(
         SmartCastCalculator(bindingContext, resolutionFacade.moduleDescriptor, expression, resolutionFacade)
     }
 
-    public val descriptorFilter: ((DeclarationDescriptor, LookupElementFactory) -> Collection<LookupElement>)? =
-            { descriptor: DeclarationDescriptor, lookupElementFactory: LookupElementFactory ->
-                filterDescriptor(descriptor, lookupElementFactory).map { postProcess(it) }
+    public val descriptorFilter: ((DeclarationDescriptor, AbstractLookupElementFactory) -> Collection<LookupElement>)? =
+            { descriptor: DeclarationDescriptor, factory: AbstractLookupElementFactory ->
+                filterDescriptor(descriptor, factory).map { postProcess(it) }
             }.check { expectedInfos.isNotEmpty() }
 
     public fun additionalItems(lookupElementFactory: LookupElementFactory): Pair<Collection<LookupElement>, InheritanceItemsSearcher?> {
@@ -154,7 +154,7 @@ class SmartCompletion(
         return@lazy emptySet()
     }
 
-    private fun filterDescriptor(descriptor: DeclarationDescriptor, lookupElementFactory: LookupElementFactory): Collection<LookupElement> {
+    private fun filterDescriptor(descriptor: DeclarationDescriptor, lookupElementFactory: AbstractLookupElementFactory): Collection<LookupElement> {
         val callType = callTypeAndReceiver.callType
         if (descriptor in descriptorsToSkip) return emptyList()
 
@@ -322,7 +322,7 @@ class SmartCompletion(
         return null
     }
 
-    private fun MutableCollection<LookupElement>.addCallableReferenceLookupElements(descriptor: DeclarationDescriptor, lookupElementFactory: LookupElementFactory) {
+    private fun MutableCollection<LookupElement>.addCallableReferenceLookupElements(descriptor: DeclarationDescriptor, lookupElementFactory: AbstractLookupElementFactory) {
         if (callableTypeExpectedInfo.isEmpty()) return
 
         fun toLookupElement(descriptor: CallableDescriptor): LookupElement? {

idea/idea-completion/src/org/jetbrains/kotlin/idea/completion/smart/SmartCompletionSession.kt

@@ -107,6 +107,18 @@ class SmartCompletionSession(configuration: CompletionSessionConfiguration, para
             flushToResultSet()
 
             if (filter != null) {
+                val staticMembersCompletion: StaticMembersCompletion?
+                if (callTypeAndReceiver is CallTypeAndReceiver.DEFAULT) {
+                    staticMembersCompletion = StaticMembersCompletion(prefixMatcher, resolutionFacade, lookupElementFactory, referenceVariants!!.imported, isJvmModule)
+                    val decoratedFactory = staticMembersCompletion.decoratedLookupElementFactory(ItemPriority.STATIC_MEMBER_FROM_IMPORTS)
+                    staticMembersCompletion.membersFromImports(file)
+                            .flatMap { filter(it, decoratedFactory) }
+                            .forEach { collector.addElement(it) }
+                }
+                else {
+                    staticMembersCompletion = null
+                }
+
                 if (shouldCompleteTopLevelCallablesFromIndex()) {
                     getTopLevelCallables().forEach { collector.addElements(filter(it, lookupElementFactory), notImported = true) }
                     flushToResultSet()
@@ -122,6 +134,13 @@ class SmartCompletionSession(configuration: CompletionSessionConfiguration, para
                         flushToResultSet()
                     }
                 }
+
+                if (staticMembersCompletion != null && configuration.completeStaticMembers) {
+                    val decoratedFactory = staticMembersCompletion.decoratedLookupElementFactory(ItemPriority.STATIC_MEMBER)
+                    staticMembersCompletion.membersFromIndices(indicesHelper(false))
+                            .flatMap { filter(it, decoratedFactory) }
+                            .forEach { collector.addElement(it) }
+                }
             }
         }
 

idea/idea-completion/testData/handlers/smart/JavaStaticMethod2.kt

@@ -0,0 +1,9 @@
+fun foo(r: Runnable){}
+
+fun bar(){
+    foo(<caret>)
+}
+
+
+// INVOCATION_COUNT: 2
+// ELEMENT_TEXT: Thread.currentThread

idea/idea-completion/testData/handlers/smart/JavaStaticMethod2.kt.after

@@ -0,0 +1,9 @@
+fun foo(r: Runnable){}
+
+fun bar(){
+    foo(Thread.currentThread())<caret>
+}
+
+
+// INVOCATION_COUNT: 2
+// ELEMENT_TEXT: Thread.currentThread

idea/idea-completion/testData/smartMultiFile/StaticMembers1/Declarations1.kt

@@ -0,0 +1,9 @@
+package dependency1
+
+import test.C
+
+object O1 {
+    fun foo(): C = C()
+    fun bar(): C = C()
+    fun x(): String = ""
+}

idea/idea-completion/testData/smartMultiFile/StaticMembers1/Declarations2.kt

@@ -0,0 +1,7 @@
+package dependency2
+
+import test.C
+
+object O2 {
+    fun foo(): C = C()
+}

idea/idea-completion/testData/smartMultiFile/StaticMembers1/JavaClass1.java

@@ -0,0 +1,15 @@
+import test.C
+
+public class JavaClass1 {
+    public static C f() {
+        return new C();
+    }
+
+    public static C g() {
+        return new C();
+    }
+
+    public static int h() {
+        return 0;
+    }
+}

idea/idea-completion/testData/smartMultiFile/StaticMembers1/JavaClass2.java

@@ -0,0 +1,11 @@
+import test.C
+
+public class JavaClass2 {
+    public static C f() {
+        return new C();
+    }
+
+    public static C g() {
+        return new C();
+    }
+}

idea/idea-completion/testData/smartMultiFile/StaticMembers1/StaticMembers1.kt

@@ -0,0 +1,24 @@
+package test
+
+import dependency1.O1.foo
+import JavaClass1.f
+
+class C
+
+fun foo(): C {
+    return <caret>
+}
+
+// INVOCATION_COUNT: 1
+
+// EXIST: { allLookupStrings: "bar", itemText: "O1.bar", tailText: "() (dependency1)", attributes: "" }
+// EXIST: { itemText: "foo", tailText: "()", attributes: "" }
+// ABSENT: { itemText: "O1.foo" }
+// ABSENT: { itemText: "O2.foo" }
+
+// EXIST: { allLookupStrings: "g", itemText: "JavaClass1.g", tailText: "() (<root>)", attributes: "" }
+// EXIST: { itemText: "f", tailText: "()", attributes: "" }
+// ABSENT: { itemText: "JavaClass1.f" }
+// ABSENT: { itemText: "JavaClass1.h" }
+// ABSENT: { itemText: "JavaClass2.f" }
+// ABSENT: { itemText: "JavaClass2.g" }

idea/idea-completion/testData/smartMultiFile/StaticMembers2/Declarations1.kt

@@ -0,0 +1,9 @@
+package dependency1
+
+import test.C
+
+object O1 {
+    fun foo(): C = C()
+    fun bar(): C = C()
+    fun x(): String = ""
+}

idea/idea-completion/testData/smartMultiFile/StaticMembers2/Declarations2.kt

@@ -0,0 +1,7 @@
+package dependency2
+
+import test.C
+
+object O2 {
+    fun foo(): C = C()
+}

idea/idea-completion/testData/smartMultiFile/StaticMembers2/JavaClass1.java

@@ -0,0 +1,15 @@
+import test.C
+
+public class JavaClass1 {
+    public static C f() {
+        return new C();
+    }
+
+    public static C g() {
+        return new C();
+    }
+
+    public static int h() {
+        return 0;
+    }
+}

idea/idea-completion/testData/smartMultiFile/StaticMembers2/JavaClass2.java

@@ -0,0 +1,11 @@
+import test.C
+
+public class JavaClass2 {
+    public static C f() {
+        return new C();
+    }
+
+    public static int g() {
+        return 0;
+    }
+}

idea/idea-completion/testData/smartMultiFile/StaticMembers2/StaticMembers2.kt

@@ -0,0 +1,24 @@
+package test
+
+import dependency1.O1.foo
+import JavaClass1.f
+
+class C
+
+fun foo(): C {
+    return <caret>
+}
+
+// INVOCATION_COUNT: 2
+
+// EXIST: { allLookupStrings: "bar", itemText: "O1.bar", tailText: "() (dependency1)", attributes: "" }
+// EXIST: { itemText: "foo", tailText: "()", attributes: "" }
+// ABSENT: { itemText: "O1.foo" }
+// EXIST: { allLookupStrings: "foo", itemText: "O2.foo", tailText: "() (dependency2)", attributes: "" }
+
+// EXIST: { allLookupStrings: "g", itemText: "JavaClass1.g", tailText: "() (<root>)", attributes: "" }
+// EXIST: { itemText: "f", tailText: "()", attributes: "" }
+// ABSENT: { itemText: "JavaClass1.f" }
+// ABSENT: { itemText: "JavaClass1.h" }
+// EXIST: { itemText: "JavaClass2.f" }
+// ABSENT: { itemText: "JavaClass2.g" }

idea/idea-completion/tests/org/jetbrains/kotlin/idea/completion/test/MultiFileSmartCompletionTestGenerated.java

@@ -136,4 +136,16 @@ public class MultiFileSmartCompletionTestGenerated extends AbstractMultiFileSmar
         String fileName = KotlinTestUtils.navigationMetadata("idea/idea-completion/testData/smartMultiFile/NoObjectDuplication/");
         doTest(fileName);
     }
+
+    @TestMetadata("StaticMembers1")
+    public void testStaticMembers1() throws Exception {
+        String fileName = KotlinTestUtils.navigationMetadata("idea/idea-completion/testData/smartMultiFile/StaticMembers1/");
+        doTest(fileName);
+    }
+
+    @TestMetadata("StaticMembers2")
+    public void testStaticMembers2() throws Exception {
+        String fileName = KotlinTestUtils.navigationMetadata("idea/idea-completion/testData/smartMultiFile/StaticMembers2/");
+        doTest(fileName);
+    }
 }

idea/idea-completion/tests/org/jetbrains/kotlin/idea/completion/test/handlers/SmartCompletionHandlerTestGenerated.java

@@ -491,6 +491,12 @@ public class SmartCompletionHandlerTestGenerated extends AbstractSmartCompletion
         doTest(fileName);
     }
 
+    @TestMetadata("JavaStaticMethod2.kt")
+    public void testJavaStaticMethod2() throws Exception {
+        String fileName = KotlinTestUtils.navigationMetadata("idea/idea-completion/testData/handlers/smart/JavaStaticMethod2.kt");
+        doTest(fileName);
+    }
+
     @TestMetadata("JavaStaticMethodInsertsImport.kt")
     public void testJavaStaticMethodInsertsImport() throws Exception {
         String fileName = KotlinTestUtils.navigationMetadata("idea/idea-completion/testData/handlers/smart/JavaStaticMethodInsertsImport.kt");

idea/idea-completion/tests/org/jetbrains/kotlin/idea/completion/test/weighers/BasicCompletionWeigherTestGenerated.java

@@ -149,18 +149,18 @@ public class BasicCompletionWeigherTestGenerated extends AbstractBasicCompletion
         doTest(fileName);
     }
 
-    @TestMetadata("SuperMembers.kt")
-    public void testSuperMembers() throws Exception {
-        String fileName = KotlinTestUtils.navigationMetadata("idea/idea-completion/testData/weighers/basic/SuperMembers.kt");
-        doTest(fileName);
-    }
-
     @TestMetadata("StaticMembers.kt")
     public void testStaticMembers() throws Exception {
         String fileName = KotlinTestUtils.navigationMetadata("idea/idea-completion/testData/weighers/basic/StaticMembers.kt");
         doTest(fileName);
     }
 
+    @TestMetadata("SuperMembers.kt")
+    public void testSuperMembers() throws Exception {
+        String fileName = KotlinTestUtils.navigationMetadata("idea/idea-completion/testData/weighers/basic/SuperMembers.kt");
+        doTest(fileName);
+    }
+
     @TestMetadata("idea/idea-completion/testData/weighers/basic/expectedInfo")
     @TestDataPath("$PROJECT_ROOT")
     @RunWith(JUnit3RunnerWithInners.class)

idea/idea-core/src/org/jetbrains/kotlin/idea/core/KotlinIndicesHelper.kt

@@ -230,7 +230,7 @@ public class KotlinIndicesHelper(
             for (method in shortNamesCache.getMethodsByName(name, scope)) {
                 if (!method.hasModifierProperty(PsiModifier.STATIC)) continue
                 if (!visibilityFilterMayIncludeAccessible && method.hasModifierProperty(PsiModifier.PRIVATE)) continue
-                val descriptor = method.getJavaMethodDescriptor() ?: continue
+                val descriptor = method.getJavaMethodDescriptor(resolutionFacade) ?: continue
                 val container = descriptor.containingDeclaration as? ClassDescriptor ?: continue
                 if (descriptorKindFilter.accepts(descriptor) && descriptorFilter(descriptor)) {
                     result.add(descriptor)