From 2960f7659bd363200b2c856edd8ff571f628c6ad Mon Sep 17 00:00:00 2001
From: Bas Leijdekkers <basleijdekkers@gmail.com>
Date: Tue, 14 Nov 2023 11:46:46 +0100
Subject: [PATCH] Java: performance - avoid expensive inheritor searches

GitOrigin-RevId: 213914d469b705358a05f8361280b2b55eb19331
---
 .../impl/quickfix/ConvertInterfaceToClassIntention.java    | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/ConvertInterfaceToClassIntention.java b/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/ConvertInterfaceToClassIntention.java
index 150a85535ac2..0b1a999c6017 100644
--- a/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/ConvertInterfaceToClassIntention.java
+++ b/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/ConvertInterfaceToClassIntention.java
@@ -18,6 +18,7 @@ import com.intellij.refactoring.util.RefactoringUIUtil;
 import com.intellij.util.containers.ContainerUtil;
 import com.intellij.util.containers.MultiMap;
 import com.siyeh.IntentionPowerPackBundle;
+import com.siyeh.ig.psiutils.DeclarationSearchUtils;
 import one.util.streamex.EntryStream;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -107,9 +108,11 @@ public class ConvertInterfaceToClassIntention extends PsiBasedModCommandAction<P
     if (!aClass.isInterface() || aClass.isAnnotationType()) {
       return false;
     }
+    if (DeclarationSearchUtils.isTooExpensiveToSearch(aClass, false)) {
+      return false;
+    }
     final SearchScope useScope = aClass.getUseScope();
-    for (PsiClass inheritor :
-      ClassInheritorsSearch.search(aClass, useScope, true)) {
+    for (PsiClass inheritor : ClassInheritorsSearch.search(aClass, useScope, true)) {
       if (inheritor.isInterface()) {
         return false;
       }