From b31def0bae3ae01322fb2fe731048fb3cd47cf82 Mon Sep 17 00:00:00 2001
From: Ilya Kirillov <ilya.kirillov@jetbrains.com>
Date: Fri, 13 Nov 2020 19:58:05 +0300
Subject: [PATCH] FIR IDE: invalidate analysis session on project roots change

---
 .../idea/frontend/api/fir/KtFirAnalysisSessionProvider.kt   | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/KtFirAnalysisSessionProvider.kt b/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/KtFirAnalysisSessionProvider.kt
index 75e6fcdad89..3497ef52c73 100644
--- a/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/KtFirAnalysisSessionProvider.kt
+++ b/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/KtFirAnalysisSessionProvider.kt
@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.idea.frontend.api.fir
 
 import com.intellij.openapi.project.Project
+import com.intellij.openapi.roots.ProjectRootModificationTracker
 import com.intellij.psi.util.CachedValueProvider
 import com.intellij.psi.util.CachedValuesManager
 import com.intellij.psi.util.PsiModificationTracker
@@ -21,12 +22,13 @@ import org.jetbrains.kotlin.psi.KtElement
 import java.util.concurrent.ConcurrentHashMap
 
 @OptIn(InvalidWayOfUsingAnalysisSession::class)
-internal class KtFirAnalysisSessionProvider(project: Project) : KtAnalysisSessionProvider() {
+class KtFirAnalysisSessionProvider(project: Project) : KtAnalysisSessionProvider() {
     private val analysisSessionByModuleInfoCache =
         CachedValuesManager.getManager(project).createCachedValue {
             CachedValueProvider.Result(
                 ConcurrentHashMap<ModuleInfo, KtAnalysisSession>(),
-                PsiModificationTracker.MODIFICATION_COUNT
+                PsiModificationTracker.MODIFICATION_COUNT,
+                ProjectRootModificationTracker.getInstance(project)
             )
         }