From dba9011563af6acd36075e6899300e0de1466a93 Mon Sep 17 00:00:00 2001
From: Simon Ogorodnik <Simon.Ogorodnik@jetbrains.com>
Date: Thu, 18 May 2017 20:45:17 +0300
Subject: [PATCH] Check for batch PSI children update when invalidating package
 cache

 #KT-17868 fixed
---
 .../kotlin/idea/caches/PerModulePackageCacheService.kt      | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/PerModulePackageCacheService.kt b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/PerModulePackageCacheService.kt
index c1e645434fa..2fdc448796c 100644
--- a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/PerModulePackageCacheService.kt
+++ b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/PerModulePackageCacheService.kt
@@ -36,6 +36,7 @@ import org.jetbrains.kotlin.idea.stubindex.PackageIndexUtil
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.psi.KtFile
 import org.jetbrains.kotlin.psi.KtPackageDirective
+import org.jetbrains.kotlin.psi.psiUtil.getChildrenOfType
 import org.jetbrains.kotlin.psi.psiUtil.getParentOfType
 import java.util.concurrent.ConcurrentMap
 
@@ -73,6 +74,11 @@ class KotlinPackageStatementPsiTreeChangePreprocessor(private val project: Proje
                 if (child.getParentOfType<KtPackageDirective>(false) != null)
                     project.service<PerModulePackageCacheService>().notifyPackageChange(file)
             }
+            PsiTreeChangeEventImpl.PsiEventType.CHILDREN_CHANGED -> {
+                val parent = event.parent ?: return
+                if (parent.getChildrenOfType<KtPackageDirective>().any())
+                    project.service<PerModulePackageCacheService>().notifyPackageChange(file)
+            }
             else -> {
             }
         }