From 1ee0892f733c4e0f32421bbd4444faac2f894107 Mon Sep 17 00:00:00 2001
From: Igor Yakovlev <igor.yakovlev@jetbrains.com>
Date: Mon, 9 Nov 2020 10:22:41 +0300
Subject: [PATCH] [ULC] Fix NPE on generating data class ctor parameters

---
 .../jetbrains/kotlin/asJava/classes/ultraLightClass.kt    | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/compiler/light-classes/src/org/jetbrains/kotlin/asJava/classes/ultraLightClass.kt b/compiler/light-classes/src/org/jetbrains/kotlin/asJava/classes/ultraLightClass.kt
index e368530dba6..c870ac26212 100644
--- a/compiler/light-classes/src/org/jetbrains/kotlin/asJava/classes/ultraLightClass.kt
+++ b/compiler/light-classes/src/org/jetbrains/kotlin/asJava/classes/ultraLightClass.kt
@@ -33,6 +33,7 @@ import org.jetbrains.kotlin.load.java.JvmAbi
 import org.jetbrains.kotlin.load.kotlin.TypeMappingMode
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.psi.*
+import org.jetbrains.kotlin.resolve.BindingContext
 import org.jetbrains.kotlin.resolve.DelegationResolver
 import org.jetbrains.kotlin.resolve.DescriptorToSourceUtils
 import org.jetbrains.kotlin.resolve.annotations.JVM_STATIC_ANNOTATION_FQ_NAME
@@ -334,12 +335,19 @@ open class KtUltraLightClass(classOrObject: KtClassOrObject, internal val suppor
 
     private fun addMethodsFromDataClass(result: MutableList<KtLightMethod>) {
         if (!classOrObject.hasModifier(DATA_KEYWORD)) return
+        val ktClass = classOrObject as? KtClass ?: return
         val descriptor = classOrObject.resolve() as? ClassDescriptor ?: return
         val bindingContext = classOrObject.analyze()
 
         // Force resolving data class members set
         descriptor.unsubstitutedMemberScope.getContributedDescriptors()
 
+        val areCtorParametersAreAnalyzed = ktClass.primaryConstructorParameters
+            .filter { it.hasValOrVar() }
+            .all { bindingContext.get(BindingContext.PRIMARY_CONSTRUCTOR_PARAMETER, it) != null }
+
+        if (!areCtorParametersAreAnalyzed) return
+
         object : DataClassMethodGenerator(classOrObject, bindingContext) {
             private fun addFunction(descriptor: FunctionDescriptor, declarationForOrigin: KtDeclaration? = null) {
                 result.add(createGeneratedMethodFromDescriptor(descriptor, JvmDeclarationOriginKind.OTHER, declarationForOrigin))