Completion: corrected for class nested into class object

idea/src/org/jetbrains/jet/plugin/completion/CompletionUtils.kt

@@ -26,6 +26,8 @@ import org.jetbrains.jet.lang.descriptors.ClassDescriptor
 import org.jetbrains.jet.renderer.DescriptorRenderer
 import org.jetbrains.jet.lang.descriptors.PackageViewDescriptor
 import org.jetbrains.jet.lang.descriptors.PackageFragmentDescriptor
+import org.jetbrains.jet.lang.descriptors.ClassKind
+import org.jetbrains.jet.lang.descriptors.DeclarationDescriptor
 
 enum class ItemPriority {
     DEFAULT
@@ -63,13 +65,14 @@ fun qualifiedNameForSourceCode(descriptor: ClassDescriptor): String? {
     val name = descriptor.getName()
     if (name.isSpecial()) return null
     val nameString = DescriptorRenderer.SOURCE_CODE.renderName(name)
-    val parent = descriptor.getContainingDeclaration()
-    val qualifier = when (parent) {
-        is ClassDescriptor -> qualifiedNameForSourceCode(parent)
-        is PackageViewDescriptor -> DescriptorRenderer.SOURCE_CODE.renderFqName(parent.getFqName())
-        is PackageFragmentDescriptor -> DescriptorRenderer.SOURCE_CODE.renderFqName(parent.fqName)
-        else -> null
-    }
+    val qualifier = qualifierName(descriptor.getContainingDeclaration())
     return if (qualifier != null && qualifier != "") qualifier + "." + nameString else nameString
 }
 
+private fun qualifierName(descriptor: DeclarationDescriptor): String? = when (descriptor) {
+    is ClassDescriptor -> if (descriptor.getKind() != ClassKind.CLASS_OBJECT) qualifiedNameForSourceCode(descriptor) else qualifierName(descriptor.getContainingDeclaration())
+    is PackageViewDescriptor -> DescriptorRenderer.SOURCE_CODE.renderFqName(descriptor.getFqName())
+    is PackageFragmentDescriptor -> DescriptorRenderer.SOURCE_CODE.renderFqName(descriptor.fqName)
+    else -> null
+}
+

idea/testData/completion/handlers/smart/ClassInClassObject.kt

@@ -0,0 +1,9 @@
+class A {
+    class object {
+        class Inner {}
+    }
+}
+
+val v: A.Inner = <caret>
+
+// ELEMENT: Inner

idea/testData/completion/handlers/smart/ClassInClassObject.kt.after

@@ -0,0 +1,9 @@
+class A {
+    class object {
+        class Inner {}
+    }
+}
+
+val v: A.Inner = A.Inner()<caret>
+
+// ELEMENT: Inner

idea/testData/completion/handlers/smart/ClassInObject.kt

@@ -0,0 +1,9 @@
+class A {
+    object O {
+        class Inner {}
+
+        val v: Inner = <caret>
+    }
+}
+
+// ELEMENT: Inner

idea/testData/completion/handlers/smart/ClassInObject.kt.after

@@ -0,0 +1,9 @@
+class A {
+    object O {
+        class Inner {}
+
+        val v: Inner = Inner()<caret>
+    }
+}
+
+// ELEMENT: Inner

idea/tests/org/jetbrains/jet/completion/handlers/SmartCompletionHandlerTestGenerated.java

@@ -88,6 +88,16 @@ public class SmartCompletionHandlerTestGenerated extends AbstractSmartCompletion
         doTest("idea/testData/completion/handlers/smart/AutoCompleteAfterAs3.kt");
     }
     
+    @TestMetadata("ClassInClassObject.kt")
+    public void testClassInClassObject() throws Exception {
+        doTest("idea/testData/completion/handlers/smart/ClassInClassObject.kt");
+    }
+    
+    @TestMetadata("ClassInObject.kt")
+    public void testClassInObject() throws Exception {
+        doTest("idea/testData/completion/handlers/smart/ClassInObject.kt");
+    }
+    
     @TestMetadata("ClassObjectMethod1.kt")
     public void testClassObjectMethod1() throws Exception {
         doTest("idea/testData/completion/handlers/smart/ClassObjectMethod1.kt");