From bed45affe123225393f2c719fac1c0f1829da736 Mon Sep 17 00:00:00 2001
From: Andrey Zinovyev <andrey.zinovyev@jetbrains.com>
Date: Sun, 18 Apr 2021 12:41:51 +0300
Subject: [PATCH] [FIR][LightTree] Don't report diagnostics on some nameless
 declarations

---
 .../diagnostics/LightTreePositioningStrategies.kt  | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics/LightTreePositioningStrategies.kt b/compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics/LightTreePositioningStrategies.kt
index 9604c27ab91..c23b3bf02b7 100644
--- a/compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics/LightTreePositioningStrategies.kt
+++ b/compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics/LightTreePositioningStrategies.kt
@@ -171,6 +171,20 @@ object LightTreePositioningStrategies {
             }
             return DEFAULT.mark(node, startOffset, endOffset, tree)
         }
+
+        override fun isValid(node: LighterASTNode, tree: FlyweightCapableTreeStructure<LighterASTNode>): Boolean {
+            //in FE 1.0 this is part of DeclarationHeader abstract strategy
+            if (node.tokenType != KtNodeTypes.OBJECT_DECLARATION
+                && node.tokenType != KtNodeTypes.FUN
+                && node.tokenType != KtNodeTypes.SECONDARY_CONSTRUCTOR
+                && node.tokenType != KtNodeTypes.OBJECT_LITERAL
+            ) {
+                if (tree.nameIdentifier(node) == null) {
+                    return false
+                }
+            }
+            return super.isValid(node, tree)
+        }
     }
 
     val DECLARATION_SIGNATURE: LightTreePositioningStrategy = object : LightTreePositioningStrategy() {