From 8a17a16ee27f8f6514622366de5989ec6dbde355 Mon Sep 17 00:00:00 2001
From: Ilya Kirillov <ilya.kirillov@jetbrains.com>
Date: Mon, 21 Dec 2020 13:27:28 +0100
Subject: [PATCH] FIR IDE: consider modification in invalid PSI as OOBM

---
 .../api/trackers/KotlinFirOutOfBlockModificationTracker.kt  | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/trackers/KotlinFirOutOfBlockModificationTracker.kt b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/trackers/KotlinFirOutOfBlockModificationTracker.kt
index 7a3ddd10fd3..3cc34e6c68d 100644
--- a/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/trackers/KotlinFirOutOfBlockModificationTracker.kt
+++ b/idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/trackers/KotlinFirOutOfBlockModificationTracker.kt
@@ -105,6 +105,12 @@ internal class KotlinFirModificationTrackerService(project: Project) : Disposabl
 
         private fun isOutOfBlockChange(node: ASTNode): Boolean {
             val psi = node.psi ?: return true
+            if (!psi.isValid) {
+                /**
+                 * If PSI is not valid, well something bad happened, OOBM won't hurt
+                 */
+                return true
+            }
             val container = psi.getNonLocalContainingInBodyDeclarationWith() ?: return true
             return !FileElementFactory.isReanalyzableContainer(container)
         }