From 416104d230c778d7b30f6f84cb0bbab9a4b81ab5 Mon Sep 17 00:00:00 2001
From: Karol Lewandowski <karol.lewandowski@jetbrains.com>
Date: Mon, 25 Mar 2024 13:38:12 +0100
Subject: [PATCH] IDEA-349976: Do not get identifier for a special FqName in
 KotlinObjectExtensionRegistrationInspection

GitOrigin-RevId: ca001cf27ab55b934c302571bee667a3e745061a
---
 .../KotlinObjectExtensionRegistrationInspection.kt       | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/plugins/devkit/intellij.kotlin.devkit/src/inspections/KotlinObjectExtensionRegistrationInspection.kt b/plugins/devkit/intellij.kotlin.devkit/src/inspections/KotlinObjectExtensionRegistrationInspection.kt
index ee0d8bcde88c..b3aa53571e82 100644
--- a/plugins/devkit/intellij.kotlin.devkit/src/inspections/KotlinObjectExtensionRegistrationInspection.kt
+++ b/plugins/devkit/intellij.kotlin.devkit/src/inspections/KotlinObjectExtensionRegistrationInspection.kt
@@ -43,11 +43,18 @@ internal class KotlinObjectExtensionRegistrationInspection : DevKitPluginXmlInsp
     val className = stringValue
     if (className.isNullOrBlank()) return false
     val normalizedClassName = ExtensionUtil.getNormalizedClassName(className) ?: return false
-    val fqName = FqName(normalizedClassName).takeIf { it.shortName().identifier.isNotEmpty() } ?: return false
+    val fqName = FqName(normalizedClassName).takeIf { it.isValidIdentifier() } ?: return false
     val kotlinAsJavaSupport = project.getService(KotlinAsJavaSupport::class.java) ?: return false
     val classOrObjectDeclarations = kotlinAsJavaSupport.findClassOrObjectDeclarations(fqName, this.resolveScope)
     return classOrObjectDeclarations.size == 1 && classOrObjectDeclarations.firstOrNull() is KtObjectDeclaration
   }
+
+  private fun FqName.isValidIdentifier(): Boolean {
+    return this.shortName()
+      .takeIf { !it.isSpecial } // IDEA-349976
+      ?.identifier
+      ?.isNotEmpty() == true
+  }
 }
 
 @VisibleForTesting