Create actual: add delegation to secondary constructor, if needed

#KT-26518 Fixed

core/descriptors/src/org/jetbrains/kotlin/renderer/DescriptorRenderer.kt

@@ -187,6 +187,7 @@ interface DescriptorRendererOptions {
     var normalizedVisibilities: Boolean
     var renderDefaultVisibility: Boolean
     var renderDefaultModality: Boolean
+    var renderConstructorDelegation: Boolean
     var renderActualAnnotationPropertiesInPrimaryConstructor: Boolean
     var uninferredTypeParameterAsName: Boolean
     var overrideRenderingPolicy: OverrideRenderingPolicy

core/descriptors/src/org/jetbrains/kotlin/renderer/DescriptorRendererImpl.kt

@@ -725,8 +725,8 @@ internal class DescriptorRendererImpl(
         if (renderConstructorKeyword) {
             builder.append(renderKeyword("constructor"))
         }
+        val classDescriptor = constructor.containingDeclaration
         if (secondaryConstructorsAsPrimary) {
-            val classDescriptor = constructor.containingDeclaration
             if (renderConstructorKeyword) {
                 builder.append(" ")
             }
@@ -736,6 +736,19 @@ internal class DescriptorRendererImpl(
 
         renderValueParameters(constructor.valueParameters, constructor.hasSynthesizedParameterNames(), builder)
 
+        if (renderConstructorDelegation && !constructor.isPrimary && classDescriptor is ClassDescriptor) {
+            val primaryConstructor = classDescriptor.unsubstitutedPrimaryConstructor
+            if (primaryConstructor != null) {
+                val parametersWithoutDefault = primaryConstructor.valueParameters.filter {
+                    !it.declaresDefaultValue() && it.varargElementType == null
+                }
+                if (parametersWithoutDefault.isNotEmpty()) {
+                    builder.append(" : ").append(renderKeyword("this"))
+                    builder.append(parametersWithoutDefault.joinToString(prefix = "(", postfix = ")", separator = ", ") { "" })
+                }
+            }
+        }
+
         if (secondaryConstructorsAsPrimary) {
             renderWhereSuffix(constructor.typeParameters, builder)
         }

core/descriptors/src/org/jetbrains/kotlin/renderer/DescriptorRendererOptionsImpl.kt

@@ -18,7 +18,6 @@ package org.jetbrains.kotlin.renderer
 
 import org.jetbrains.kotlin.descriptors.ValueParameterDescriptor
 import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
-import org.jetbrains.kotlin.descriptors.annotations.AnnotationWithTarget
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.types.KotlinType
 import java.lang.IllegalStateException
@@ -82,6 +81,7 @@ internal class DescriptorRendererOptionsImpl : DescriptorRendererOptions {
     override var normalizedVisibilities by property(false)
     override var renderDefaultVisibility by property(true)
     override var renderDefaultModality by property(true)
+    override var renderConstructorDelegation by property(false)
     override var renderActualAnnotationPropertiesInPrimaryConstructor by property(false)
     override var uninferredTypeParameterAsName by property(false)
     override var includePropertyConstant by property(false)

idea/idea-core/src/org/jetbrains/kotlin/idea/core/overrideImplement/OverrideMemberChooserObject.kt

@@ -216,6 +216,7 @@ private val ACTUAL_RENDERER = OVERRIDE_RENDERER.withOptions {
     secondaryConstructorsAsPrimary = false
     renderDefaultVisibility = false
     renderDefaultModality = false
+    renderConstructorDelegation = true
     renderActualAnnotationPropertiesInPrimaryConstructor = true
 }
 

idea/testData/multiModuleQuickFix/constructorWithDelegation/common/common.kt

@@ -0,0 +1,5 @@
+// "Create actual class for module testModule_JVM (JVM)" "true"
+
+expect class <caret>Constructors(s: String) {
+    constructor(i: Int)
+}

idea/testData/multiModuleQuickFix/constructorWithDelegation/common/common.kt.after

@@ -0,0 +1,5 @@
+// "Create actual class for module testModule_JVM (JVM)" "true"
+
+expect class <caret>Constructors(s: String) {
+    constructor(i: Int)
+}

idea/testData/multiModuleQuickFix/constructorWithDelegation/jvm/Constructors.kt

@@ -0,0 +1 @@
+// Constructors: to be implemented

idea/testData/multiModuleQuickFix/constructorWithDelegation/jvm/Constructors.kt.after

@@ -0,0 +1,6 @@
+// Constructors: to be implemented
+actual class Constructors actual constructor(s: String) {
+    actual constructor(i: Int) : this() {
+        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+    }
+}

idea/tests/org/jetbrains/kotlin/idea/quickfix/QuickFixMultiModuleTestGenerated.java

@@ -159,6 +159,11 @@ public class QuickFixMultiModuleTestGenerated extends AbstractQuickFixMultiModul
         runTest("idea/testData/multiModuleQuickFix/companionAbsence/");
     }
 
+    @TestMetadata("constructorWithDelegation")
+    public void testConstructorWithDelegation() throws Exception {
+        runTest("idea/testData/multiModuleQuickFix/constructorWithDelegation/");
+    }
+
     @TestMetadata("constructorWithJdk")
     public void testConstructorWithJdk() throws Exception {
         runTest("idea/testData/multiModuleQuickFix/constructorWithJdk/");