Call Hierarchy: Find implicit constructor calls in Java code

idea/src/org/jetbrains/kotlin/idea/hierarchy/calls/KotlinCallerMethodsTreeStructure.java

@@ -23,6 +23,7 @@ import com.intellij.openapi.application.ReadActionProcessor;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.Condition;
 import com.intellij.psi.*;
+import com.intellij.psi.impl.light.LightMemberReference;
 import com.intellij.psi.search.SearchScope;
 import com.intellij.psi.search.searches.MethodReferencesSearch;
 import com.intellij.psi.search.searches.ReferencesSearch;
@@ -114,7 +115,14 @@ public class KotlinCallerMethodsTreeStructure extends KotlinCallTreeStructure {
             processPsiMethodCallers(propertyMethods, descriptor, methodToDescriptorMap, searchScope, false);
         }
         if (element instanceof JetClassOrObject) {
-            processJetClassOrObjectCallers((JetClassOrObject) element, descriptor, methodToDescriptorMap, searchScope);
+            JetPrimaryConstructor constructor = ((JetClassOrObject) element).getPrimaryConstructor();
+            if (constructor != null) {
+                PsiMethod lightMethod = LightClassUtil.getLightClassMethod(constructor);
+                processPsiMethodCallers(Collections.singleton(lightMethod), descriptor, methodToDescriptorMap, searchScope, false);
+            }
+            else {
+                processJetClassOrObjectCallers((JetClassOrObject) element, descriptor, methodToDescriptorMap, searchScope);
+            }
         }
 
         Object[] callers = methodToDescriptorMap.values().toArray(new Object[methodToDescriptorMap.size()]);
@@ -205,6 +213,11 @@ public class KotlinCallerMethodsTreeStructure extends KotlinCallTreeStructure {
                         return true;
                     }
                 }
+                else if (ref instanceof LightMemberReference) {
+                    PsiElement refTarget = ref.resolve();
+                    // Accept implicit superclass constructor reference in Java code
+                    if (!(refTarget instanceof PsiMethod && ((PsiMethod) refTarget).isConstructor())) return true;
+                }
 
                 PsiElement refElement = ref.getElement();
                 if (PsiTreeUtil.getParentOfType(refElement, JetImportDirective.class, true) != null) return true;

idea/testData/hierarchy/calls/callers/kotlinPrimaryConstructorImplicitCalls/KotlinPrimaryConstructorImplicitCalls_verification.xml

@@ -0,0 +1,4 @@
+<node text="B  ()" base="true">
+    <node text="A.A(Int)  ()"/>
+    <node text="JJ.JJ()  ()"/>
+</node>

idea/testData/hierarchy/calls/callers/kotlinPrimaryConstructorImplicitCalls/main0.kt

@@ -0,0 +1,7 @@
+open class <caret>B()
+
+open class A : B {
+    constructor(a: Int) {
+
+    }
+}

idea/testData/hierarchy/calls/callers/kotlinPrimaryConstructorImplicitCalls/main1.java

@@ -0,0 +1,5 @@
+class JJ extends B {
+    JJ() {
+
+    }
+}

idea/testData/hierarchy/calls/callers/kotlinSecondaryConstructorImplicitCalls/KotlinSecondaryConstructorImplicitCalls_verification.xml

@@ -0,0 +1,4 @@
+<node text="B.B()  ()" base="true">
+    <node text="JJ.JJ()  ()"/>
+    <node text="A.A(Int)  ()"/>
+</node>

idea/testData/hierarchy/calls/callers/kotlinSecondaryConstructorImplicitCalls/main0.kt

@@ -0,0 +1,11 @@
+open class B {
+    <caret>constructor() {
+
+    }
+}
+
+open class A : B {
+    constructor(a: Int) {
+
+    }
+}

idea/testData/hierarchy/calls/callers/kotlinSecondaryConstructorImplicitCalls/main1.java

@@ -0,0 +1,5 @@
+class JJ extends B {
+    JJ() {
+
+    }
+}

idea/tests/org/jetbrains/kotlin/idea/hierarchy/HierarchyTestGenerated.java

@@ -358,6 +358,12 @@ public class HierarchyTestGenerated extends AbstractHierarchyTest {
             doCallerHierarchyTest(fileName);
         }
 
+        @TestMetadata("kotlinPrimaryConstructorImplicitCalls")
+        public void testKotlinPrimaryConstructorImplicitCalls() throws Exception {
+            String fileName = JetTestUtils.navigationMetadata("idea/testData/hierarchy/calls/callers/kotlinPrimaryConstructorImplicitCalls/");
+            doCallerHierarchyTest(fileName);
+        }
+
         @TestMetadata("kotlinPrivateClass")
         public void testKotlinPrivateClass() throws Exception {
             String fileName = JetTestUtils.navigationMetadata("idea/testData/hierarchy/calls/callers/kotlinPrivateClass/");
@@ -388,6 +394,12 @@ public class HierarchyTestGenerated extends AbstractHierarchyTest {
             doCallerHierarchyTest(fileName);
         }
 
+        @TestMetadata("kotlinSecondaryConstructorImplicitCalls")
+        public void testKotlinSecondaryConstructorImplicitCalls() throws Exception {
+            String fileName = JetTestUtils.navigationMetadata("idea/testData/hierarchy/calls/callers/kotlinSecondaryConstructorImplicitCalls/");
+            doCallerHierarchyTest(fileName);
+        }
+
         @TestMetadata("kotlinUnresolvedFunction")
         public void testKotlinUnresolvedFunction() throws Exception {
             String fileName = JetTestUtils.navigationMetadata("idea/testData/hierarchy/calls/callers/kotlinUnresolvedFunction/");