From 8ae15b747cdae238ed4b7b83add03e6acdb1cef6 Mon Sep 17 00:00:00 2001
From: "Gregory.Shrago" <gregory.shrago@jetbrains.com>
Date: Thu, 8 Aug 2013 22:01:18 +0400
Subject: [PATCH] ReferenceSearch: fix non-physical LocalSearchScope case

---
 .../intellij/psi/search/LocalSearchScope.java   | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/platform/core-api/src/com/intellij/psi/search/LocalSearchScope.java b/platform/core-api/src/com/intellij/psi/search/LocalSearchScope.java
index d7546e76ac02..0f556dc0bd0c 100644
--- a/platform/core-api/src/com/intellij/psi/search/LocalSearchScope.java
+++ b/platform/core-api/src/com/intellij/psi/search/LocalSearchScope.java
@@ -16,6 +16,7 @@
 package com.intellij.psi.search;
 
 import com.intellij.openapi.diagnostic.Logger;
+import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.Comparing;
 import com.intellij.openapi.util.TextRange;
 import com.intellij.openapi.vfs.VirtualFile;
@@ -148,9 +149,25 @@ public class LocalSearchScope extends SearchScope {
     if (scope2 instanceof LocalSearchScope) {
       return intersectWith((LocalSearchScope)scope2);
     }
+    LocalSearchScope nonPhysicalScope = tryIntersectNonPhysicalWith((GlobalSearchScope)scope2);
+    if (nonPhysicalScope != null) return nonPhysicalScope;
     return ((GlobalSearchScope)scope2).intersectWith(this);
   }
 
+  @Nullable
+  private LocalSearchScope tryIntersectNonPhysicalWith(@NotNull GlobalSearchScope scope) {
+    Project project = scope.getProject();
+    for (PsiElement element : myScope) {
+      PsiFile containingFile = element.getContainingFile();
+      if (containingFile == null) continue;
+      if (containingFile.getViewProvider().isPhysical()) return null;
+      if (project != null && project != containingFile.getProject()) {
+        return EMPTY;
+      }
+    }
+    return this;
+  }
+
   @Nullable
   private static PsiElement intersectScopeElements(PsiElement element1, PsiElement element2) {
     if (PsiTreeUtil.isContextAncestor(element1, element2, false)) return element2;