From c251b6961fad0da1ea747df9bc1eb5f8c9bf31ff Mon Sep 17 00:00:00 2001
From: Alexander Udalov <alexander.udalov@jetbrains.com>
Date: Mon, 7 Oct 2024 14:56:30 +0200
Subject: [PATCH] [kotlin] Minor, move noarg descriptor utils to IDE plugin
 sources

In the main Kotlin repo, they were only used from the old JVM backend
implementation of noarg, which is being removed right now.

 #KT-71197

GitOrigin-RevId: 4faae27bfc6c5e8aec5c10c7e7bb3a09825ad351
---
 .../NoArgUltraLightClassModifierExtension.kt  | 37 +++++++++++++++----
 1 file changed, 29 insertions(+), 8 deletions(-)

diff --git a/plugins/kotlin/compiler-plugins/noarg/common/src/org/jetbrains/kotlin/idea/compilerPlugin/noarg/NoArgUltraLightClassModifierExtension.kt b/plugins/kotlin/compiler-plugins/noarg/common/src/org/jetbrains/kotlin/idea/compilerPlugin/noarg/NoArgUltraLightClassModifierExtension.kt
index 95050ed9c212..1e1e7b358922 100644
--- a/plugins/kotlin/compiler-plugins/noarg/common/src/org/jetbrains/kotlin/idea/compilerPlugin/noarg/NoArgUltraLightClassModifierExtension.kt
+++ b/plugins/kotlin/compiler-plugins/noarg/common/src/org/jetbrains/kotlin/idea/compilerPlugin/noarg/NoArgUltraLightClassModifierExtension.kt
@@ -3,18 +3,19 @@
 package org.jetbrains.kotlin.idea.compilerPlugin.noarg
 
 import com.intellij.openapi.project.Project
-import org.jetbrains.kotlin.idea.compilerPlugin.CachedAnnotationNames
-import org.jetbrains.kotlin.idea.compilerPlugin.getAnnotationNames
 import org.jetbrains.kotlin.asJava.UltraLightClassModifierExtension
 import org.jetbrains.kotlin.asJava.classes.KtUltraLightClass
 import org.jetbrains.kotlin.asJava.classes.createGeneratedMethodFromDescriptor
 import org.jetbrains.kotlin.asJava.elements.KtLightMethod
-import org.jetbrains.kotlin.descriptors.ClassDescriptor
-import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
+import org.jetbrains.kotlin.descriptors.*
+import org.jetbrains.kotlin.descriptors.annotations.Annotations
+import org.jetbrains.kotlin.descriptors.impl.ClassConstructorDescriptorImpl
 import org.jetbrains.kotlin.extensions.AnnotationBasedExtension
-import org.jetbrains.kotlin.noarg.AbstractNoArgExpressionCodegenExtension
-import org.jetbrains.kotlin.noarg.AbstractNoArgExpressionCodegenExtension.Companion.isZeroParameterConstructor
+import org.jetbrains.kotlin.idea.compilerPlugin.CachedAnnotationNames
+import org.jetbrains.kotlin.idea.compilerPlugin.getAnnotationNames
 import org.jetbrains.kotlin.psi.*
+import org.jetbrains.kotlin.resolve.descriptorUtil.builtIns
+import org.jetbrains.kotlin.resolve.jvm.annotations.findJvmOverloadsAnnotation
 import org.jetbrains.kotlin.util.isAnnotated
 import org.jetbrains.kotlin.util.isOrdinaryClass
 
@@ -63,8 +64,28 @@ class NoArgUltraLightClassModifierExtension(project: Project) :
 
         if (classDescriptor.constructors.any { isZeroParameterConstructor(it) }) return
 
-        val constructorDescriptor = AbstractNoArgExpressionCodegenExtension.createNoArgConstructorDescriptor(classDescriptor)
+        val constructorDescriptor = createNoArgConstructorDescriptor(classDescriptor)
 
         methodsList.add(parentClass.createGeneratedMethodFromDescriptor(constructorDescriptor))
     }
-}
\ No newline at end of file
+
+    private fun isZeroParameterConstructor(constructor: ClassConstructorDescriptor): Boolean {
+        val parameters = constructor.valueParameters
+        return parameters.isEmpty() ||
+               (parameters.all { it.declaresDefaultValue() } && (constructor.isPrimary || constructor.findJvmOverloadsAnnotation() != null))
+    }
+
+    private fun createNoArgConstructorDescriptor(containingClass: ClassDescriptor): ConstructorDescriptor =
+        ClassConstructorDescriptorImpl.createSynthesized(containingClass, Annotations.EMPTY, false, SourceElement.NO_SOURCE).apply {
+            initialize(
+                null,
+                calculateDispatchReceiverParameter(),
+                emptyList(),
+                emptyList(),
+                emptyList(),
+                containingClass.builtIns.unitType,
+                Modality.OPEN,
+                DescriptorVisibilities.PUBLIC
+            )
+        }
+}