From 82a4f0d0e64ce1b1e8e0538d348754c38d0533df Mon Sep 17 00:00:00 2001
From: Max Medvedev <maxim.medvedev@jetbrains.com>
Date: Wed, 5 Mar 2014 14:01:58 +0400
Subject: [PATCH] IDEA-121318 optimizing whether place is child of import
 statement. Actually place can be a child of an import statement only if it is
 a GrCodeReferenceElement.

---
 .../toplevel/imports/GrImportStatementImpl.java    | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/plugins/groovy/src/org/jetbrains/plugins/groovy/lang/psi/impl/toplevel/imports/GrImportStatementImpl.java b/plugins/groovy/src/org/jetbrains/plugins/groovy/lang/psi/impl/toplevel/imports/GrImportStatementImpl.java
index 761cbeb31b6c..03e8016f08bf 100644
--- a/plugins/groovy/src/org/jetbrains/plugins/groovy/lang/psi/impl/toplevel/imports/GrImportStatementImpl.java
+++ b/plugins/groovy/src/org/jetbrains/plugins/groovy/lang/psi/impl/toplevel/imports/GrImportStatementImpl.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2013 JetBrains s.r.o.
+ * Copyright 2000-2014 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,7 +25,6 @@ import com.intellij.psi.stubs.IStubElementType;
 import com.intellij.psi.util.CachedValueProvider;
 import com.intellij.psi.util.CachedValuesManager;
 import com.intellij.psi.util.PsiModificationTracker;
-import com.intellij.psi.util.PsiTreeUtil;
 import com.intellij.util.ObjectUtils;
 import com.intellij.util.containers.ContainerUtil;
 import org.jetbrains.annotations.NotNull;
@@ -78,7 +77,7 @@ public class GrImportStatementImpl extends GrStubElementBase<GrImportStatementSt
                                      @NotNull ResolveState state,
                                      @Nullable PsiElement lastParent,
                                      @NotNull PsiElement place) {
-    if (PsiTreeUtil.isAncestor(this, place, false)) {
+    if (isAncestor(place)) {
       return true;
     }
     if (isStatic() && lastParent instanceof GrImportStatement) return true;
@@ -93,6 +92,15 @@ public class GrImportStatementImpl extends GrStubElementBase<GrImportStatementSt
     return true;
   }
 
+  private boolean isAncestor(@Nullable PsiElement place) {
+    while (place instanceof GrCodeReferenceElement) {
+      PsiElement parent = place.getParent();
+      if (parent == this) return true;
+      place = parent;
+    }
+    return false;
+  }
+
   private boolean processDeclarationsForSingleElement(PsiScopeProcessor processor, ResolveState state) {
     String name = getImportedName();
     if (name == null) return true;