Smart step into for constructors

idea/src/org/jetbrains/kotlin/idea/debugger/stepping/KotlinBasicStepMethodFilter.kt

@@ -21,26 +21,22 @@ import com.intellij.debugger.engine.DebugProcessImpl
 import com.intellij.debugger.engine.NamedMethodFilter
 import com.intellij.util.Range
 import com.sun.jdi.Location
-import com.sun.jdi.Method
-import org.jetbrains.kotlin.asJava.LightClassUtil
 import org.jetbrains.kotlin.idea.util.application.runReadAction
 import org.jetbrains.kotlin.load.java.JvmAbi
-import org.jetbrains.kotlin.psi.KtConstructor
-import org.jetbrains.kotlin.psi.KtElement
-import org.jetbrains.kotlin.psi.KtProperty
-import org.jetbrains.kotlin.psi.KtPropertyAccessor
+import org.jetbrains.kotlin.psi.*
 
 public class KotlinBasicStepMethodFilter(
-        val resolvedFunction: KtElement,
+        val resolvedElement: KtElement,
         val myCallingExpressionLines: Range<Int>
 ) : NamedMethodFilter {
     private val myTargetMethodName: String
 
     init {
-        myTargetMethodName = when (resolvedFunction) {
+        myTargetMethodName = when (resolvedElement) {
+            is KtAnonymousInitializer -> "<init>"
             is KtConstructor<*> -> "<init>"
-            is KtPropertyAccessor -> JvmAbi.getterName((resolvedFunction.getParent() as KtProperty).getName()!!)
-            else -> resolvedFunction.getName()!!
+            is KtPropertyAccessor -> JvmAbi.getterName((resolvedElement.getParent() as KtProperty).getName()!!)
+            else -> resolvedElement.getName()!!
         }
     }
 
@@ -52,7 +48,7 @@ public class KotlinBasicStepMethodFilter(
         val method = location.method()
         if (myTargetMethodName != method.name()) return false
 
-        val sourcePosition = runReadAction { SourcePosition.createFromElement(resolvedFunction) } ?: return false
+        val sourcePosition = runReadAction { SourcePosition.createFromElement(resolvedElement) } ?: return false
         val positionManager = process.getPositionManager() ?: return false
 
         val classes = positionManager.getAllClasses(sourcePosition)

idea/src/org/jetbrains/kotlin/idea/debugger/stepping/KotlinSmartStepIntoHandler.kt

@@ -27,6 +27,7 @@ import com.intellij.util.Range
 import com.intellij.util.containers.OrderedSet
 import org.jetbrains.kotlin.codegen.intrinsics.IntrinsicMethods
 import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor
+import org.jetbrains.kotlin.descriptors.FunctionDescriptor
 import org.jetbrains.kotlin.descriptors.PropertyDescriptor
 import org.jetbrains.kotlin.idea.caches.resolve.analyze
 import org.jetbrains.kotlin.idea.caches.resolve.analyzeFully
@@ -64,7 +65,6 @@ public class KotlinSmartStepIntoHandler : JvmSmartStepIntoHandler() {
 
         // TODO support class initializers, local functions, delegated properties with specified type, setter for properties
         element.accept(object: KtTreeVisitorVoid() {
-
             override fun visitFunctionLiteralExpression(expression: KtFunctionLiteralExpression) {
                 recordFunctionLiteral(expression.functionLiteral)
             }
@@ -175,14 +175,20 @@ public class KotlinSmartStepIntoHandler : JvmSmartStepIntoHandler() {
                 val resolvedCall = expression.getResolvedCall(bindingContext) ?: return
 
                 val descriptor = resolvedCall.getResultingDescriptor()
-                if (descriptor is CallableMemberDescriptor && !isIntrinsic(descriptor)) {
-                    val function = DescriptorToSourceUtilsIde.getAnyDeclaration(file.getProject(), descriptor)
-                    if (function is KtNamedFunction || function is KtSecondaryConstructor) {
+                if (descriptor is FunctionDescriptor && !isIntrinsic(descriptor)) {
+                    val resolvedElement = DescriptorToSourceUtilsIde.getAnyDeclaration(file.getProject(), descriptor)
+                    if (resolvedElement is KtNamedFunction || resolvedElement is KtConstructor<*>) {
                         val label = KotlinMethodSmartStepTarget.calcLabel(descriptor)
-                        result.add(KotlinMethodSmartStepTarget(function as KtFunction, label, expression, lines))
+                        result.add(KotlinMethodSmartStepTarget(resolvedElement as KtFunction, label, expression, lines))
                     }
-                    else if (function is PsiMethod) {
-                        result.add(MethodSmartStepTarget(function, null, expression, false, lines))
+                    else if (resolvedElement is PsiMethod) {
+                        result.add(MethodSmartStepTarget(resolvedElement, null, expression, false, lines))
+                    }
+                    else if (resolvedElement is KtClass) {
+                         resolvedElement.getAnonymousInitializers().firstOrNull()?.let {
+                             val label = KotlinMethodSmartStepTarget.calcLabel(descriptor)
+                             result.add(KotlinMethodSmartStepTarget(it, label, expression, lines))
+                         }
                     }
                 }
             }

idea/testData/debugger/smartStepInto/constructor.kt

@@ -0,0 +1,44 @@
+fun foo() {
+    println("${A()} ${B()} ${C(1)} ${D()} ${E(1)} ${F()} ${G()} ${J()} ${K(1)} ${L()}")<caret>
+}
+
+class A
+class B()
+class C(val a: Int)
+class D {
+    constructor()
+}
+class E {
+    constructor(i: Int)
+}
+class F {
+    constructor() {
+
+    }
+}
+class G {
+    constructor(i: Int) {
+
+    }
+}
+class J {
+    init {
+
+    }
+}
+class K(val a: Int) {
+    init {
+
+    }
+}
+class L {
+    constructor() {
+
+    }
+
+    init {
+
+    }
+}
+
+// EXISTS: println(Any?), constructor B(), constructor C(Int), constructor D(), constructor E(Int), constructor F(), constructor G(Int), constructor J(), constructor K(Int), constructor L()

idea/testData/debugger/smartStepInto/renderer.kt

@@ -25,4 +25,5 @@ val propFoo: Int
 // EXISTS: fooWithParam: f.invoke()
 // EXISTS: test()
 // EXISTS: constructor FooClass()
+// EXISTS: constructor FooClass(Int)
 // EXISTS: constructor FooClass(Int\, Int)

idea/tests/org/jetbrains/kotlin/idea/debugger/SmartStepIntoTestGenerated.java

@@ -53,6 +53,12 @@ public class SmartStepIntoTestGenerated extends AbstractSmartStepIntoTest {
         doTest(fileName);
     }
 
+    @TestMetadata("constructor.kt")
+    public void testConstructor() throws Exception {
+        String fileName = KotlinTestUtils.navigationMetadata("idea/testData/debugger/smartStepInto/constructor.kt");
+        doTest(fileName);
+    }
+
     @TestMetadata("conventionMethod.kt")
     public void testConventionMethod() throws Exception {
         String fileName = KotlinTestUtils.navigationMetadata("idea/testData/debugger/smartStepInto/conventionMethod.kt");