From 72813cefbe5c44691e912692083c97f5e30e1eb2 Mon Sep 17 00:00:00 2001
From: Dmitriy Novozhilov <dmitriy.novozhilov@jetbrains.com>
Date: Fri, 29 May 2020 17:04:37 +0300
Subject: [PATCH] [FIR] Store list of sealed inheritors even if there are none
 of them

---
 .../transformers/FirSealedClassInheritorsTransformer.kt       | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/FirSealedClassInheritorsTransformer.kt b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/FirSealedClassInheritorsTransformer.kt
index 3ad88f52ccf..9e65af5e298 100644
--- a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/FirSealedClassInheritorsTransformer.kt
+++ b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/FirSealedClassInheritorsTransformer.kt
@@ -72,6 +72,10 @@ class FirSealedClassInheritorsTransformer : FirTransformer<Nothing?>() {
         override fun visitRegularClass(regularClass: FirRegularClass, data: MutableMap<FirRegularClass, MutableList<ClassId>>) {
             regularClass.declarations.forEach { it.accept(this, data) }
 
+            if (regularClass.modality == Modality.SEALED) {
+                data.computeIfAbsent(regularClass) { mutableListOf() }
+            }
+
             val symbolProvider = regularClass.session.firSymbolProvider
 
             for (typeRef in regularClass.superTypeRefs) {