diff --git a/.idea/codeStyleSettings.xml b/.idea/codeStyleSettings.xml
index 115d3885eb42..4965a0dbd23d 100644
--- a/.idea/codeStyleSettings.xml
+++ b/.idea/codeStyleSettings.xml
@@ -87,6 +87,20 @@
         <option name="WHILE_BRACE_FORCE" value="1" />
         <option name="FOR_BRACE_FORCE" value="1" />
         <option name="FIELD_ANNOTATION_WRAP" value="0" />
+        <AndroidXmlCodeStyleSettings>
+          <option name="LAYOUT_SETTINGS">
+            <value />
+          </option>
+          <option name="MANIFEST_SETTINGS">
+            <value />
+          </option>
+          <option name="VALUE_RESOURCE_FILE_SETTINGS">
+            <value />
+          </option>
+          <option name="OTHER_SETTINGS">
+            <value />
+          </option>
+        </AndroidXmlCodeStyleSettings>
         <XML>
           <option name="XML_LEGACY_SETTINGS_IMPORTED" value="true" />
         </XML>
@@ -259,7 +273,6 @@
           <option name="PARENT_SETTINGS_INSTALLED" value="true" />
         </codeStyleSettings>
         <codeStyleSettings language="SQL">
-          <option name="KEEP_LINE_BREAKS" value="false" />
           <option name="PARENT_SETTINGS_INSTALLED" value="true" />
         </codeStyleSettings>
         <codeStyleSettings language="XML">
diff --git a/.idea/libraries/sass_stdlib.xml b/.idea/libraries/sass_stdlib.xml
new file mode 100644
index 000000000000..fa4e8b4d2cd9
--- /dev/null
+++ b/.idea/libraries/sass_stdlib.xml
@@ -0,0 +1,9 @@
+<component name="libraryTable">
+  <library name="sass-stdlib">
+    <CLASSES />
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$APPLICATION_HOME_DIR$/plugins/sass/lib/stubs/sass_functions.scss" />
+    </SOURCES>
+  </library>
+</component>
\ No newline at end of file
diff --git a/platform/core-api/src/com/intellij/concurrency/AsyncFutureFactory.java b/platform/core-api/src/com/intellij/concurrency/AsyncFutureFactory.java
index 23b10de3d77e..68906607de20 100644
--- a/platform/core-api/src/com/intellij/concurrency/AsyncFutureFactory.java
+++ b/platform/core-api/src/com/intellij/concurrency/AsyncFutureFactory.java
@@ -37,6 +37,5 @@ public abstract class AsyncFutureFactory {
     return result;
   }
 
-
   public abstract <V> AsyncFutureResult<V> createAsyncFutureResult();
 }
diff --git a/platform/core-api/src/com/intellij/concurrency/DoWhile.java b/platform/core-api/src/com/intellij/concurrency/DoWhile.java
new file mode 100644
index 000000000000..15560b0c87ca
--- /dev/null
+++ b/platform/core-api/src/com/intellij/concurrency/DoWhile.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2000-2012 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.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.concurrency;
+
+/**
+ * Author: dmitrylomov
+ */
+public abstract class DoWhile  {
+  private AsyncFutureResult<Boolean> myResult;
+
+  public DoWhile() {
+  }
+
+  public AsyncFutureResult<Boolean> getResult() {
+    if (myResult == null) {
+      myResult = AsyncFutureFactory.getInstance().createAsyncFutureResult();
+      body().addConsumer(SameThreadExecutor.INSTANCE, new MyConsumer());
+    }
+    return myResult;
+  }
+
+  protected abstract AsyncFuture<Boolean> body();
+  protected abstract boolean condition();
+
+  private class MyConsumer extends DefaultResultConsumer<Boolean> {
+    public MyConsumer() {
+      super(DoWhile.this.myResult);
+    }
+
+    @Override
+    public void onSuccess(Boolean value) {
+      if (!value.booleanValue()) {
+        myResult.set(false);
+      }
+      else {
+        if(!condition()) {
+          myResult.set(true);
+        }
+        else {
+          body().addConsumer(SameThreadExecutor.INSTANCE, this);
+        }
+      }
+    }
+  }
+
+
+}
diff --git a/platform/core-api/src/com/intellij/concurrency/Iterate.java b/platform/core-api/src/com/intellij/concurrency/Iterate.java
new file mode 100644
index 000000000000..a6fe317cc647
--- /dev/null
+++ b/platform/core-api/src/com/intellij/concurrency/Iterate.java
@@ -0,0 +1,32 @@
+package com.intellij.concurrency;
+
+import java.util.Iterator;
+
+/**
+ * Author: dmitrylomov
+ */
+public abstract class Iterate<T> extends DoWhile {
+  private final Iterator<T> myIterator;
+  private boolean myIsDone;
+
+  public Iterate(Iterable<T> iterable) {
+    myIterator = iterable.iterator();
+    myIsDone = false;
+  }
+
+  @Override
+  protected final AsyncFuture<Boolean> body() {
+    if (!myIterator.hasNext()) {
+      myIsDone = true;
+      return AsyncFutureFactory.wrap(true);
+    }
+    return process(myIterator.next());
+  }
+
+  protected abstract AsyncFuture<Boolean> process(T t);
+
+  @Override
+  protected boolean condition() {
+    return !myIsDone;
+  }
+}
diff --git a/platform/util/src/com/intellij/util/AbstractQuery.java b/platform/core-api/src/com/intellij/util/AbstractQuery.java
similarity index 71%
rename from platform/util/src/com/intellij/util/AbstractQuery.java
rename to platform/core-api/src/com/intellij/util/AbstractQuery.java
index c93da2840652..fc1df3744aad 100644
--- a/platform/util/src/com/intellij/util/AbstractQuery.java
+++ b/platform/core-api/src/com/intellij/util/AbstractQuery.java
@@ -15,6 +15,10 @@
  */
 package com.intellij.util;
 
+import com.intellij.concurrency.AsyncFuture;
+import com.intellij.concurrency.AsyncFutureFactory;
+import com.intellij.concurrency.AsyncFutureResult;
+import com.intellij.concurrency.FinallyFuture;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -76,5 +80,27 @@ public abstract class AbstractQuery<Result> implements Query<Result> {
     }
   }
 
+  @Override
+  public AsyncFuture<Boolean> forEachAsync(@NotNull Processor<Result> consumer) {
+    assertNotProcessing();
+    myIsProcessing = true;
+    return new FinallyFuture<Boolean>(processResultsAsync(consumer), new Runnable() {
+      @Override
+      public void run() {
+        myIsProcessing = false;
+      }
+    });
+  }
+
   protected abstract boolean processResults(@NotNull Processor<Result> consumer);
+
+  protected AsyncFuture<Boolean> processResultsAsync(@NotNull Processor<Result> consumer) {
+    final AsyncFutureResult<Boolean> result = AsyncFutureFactory.getInstance().createAsyncFutureResult();
+    try {
+      result.set(processResults(consumer));
+    } catch (Throwable t) {
+      result.setException(t);
+    }
+    return result;
+  }
 }
diff --git a/platform/util/src/com/intellij/util/ArrayQuery.java b/platform/core-api/src/com/intellij/util/ArrayQuery.java
similarity index 74%
rename from platform/util/src/com/intellij/util/ArrayQuery.java
rename to platform/core-api/src/com/intellij/util/ArrayQuery.java
index ef1502b92094..df8dcad7fd12 100644
--- a/platform/util/src/com/intellij/util/ArrayQuery.java
+++ b/platform/core-api/src/com/intellij/util/ArrayQuery.java
@@ -16,6 +16,9 @@
 
 package com.intellij.util;
 
+import com.intellij.concurrency.AsyncFuture;
+import com.intellij.concurrency.AsyncFutureFactory;
+import com.intellij.concurrency.AsyncFutureResult;
 import com.intellij.util.containers.ContainerUtil;
 import org.jetbrains.annotations.NotNull;
 
@@ -46,6 +49,17 @@ public class ArrayQuery<T> implements Query<T> {
     return ContainerUtil.process(myArray, consumer);
   }
 
+  public AsyncFuture<Boolean> forEachAsync(@NotNull final Processor<T> consumer) {
+    final AsyncFutureResult<Boolean> result = AsyncFutureFactory.getInstance().createAsyncFutureResult();
+    try {
+      result.set(forEach(consumer));
+    } catch (Throwable t){
+      result.setException(t);
+    }
+    return result;
+  }
+
+
   public T[] toArray(final T[] a) {
     return myArray;
   }
diff --git a/platform/util/src/com/intellij/util/CollectionQuery.java b/platform/core-api/src/com/intellij/util/CollectionQuery.java
similarity index 76%
rename from platform/util/src/com/intellij/util/CollectionQuery.java
rename to platform/core-api/src/com/intellij/util/CollectionQuery.java
index 09d5758a25b7..38db8f570707 100644
--- a/platform/util/src/com/intellij/util/CollectionQuery.java
+++ b/platform/core-api/src/com/intellij/util/CollectionQuery.java
@@ -16,6 +16,9 @@
 
 package com.intellij.util;
 
+import com.intellij.concurrency.AsyncFuture;
+import com.intellij.concurrency.AsyncFutureFactory;
+import com.intellij.concurrency.AsyncFutureResult;
 import com.intellij.util.containers.ContainerUtil;
 import org.jetbrains.annotations.NotNull;
 
@@ -49,6 +52,17 @@ public class CollectionQuery<T> implements Query<T> {
     return ContainerUtil.process(myCollection, consumer);
   }
 
+  @Override
+  public AsyncFuture<Boolean> forEachAsync(@NotNull Processor<T> consumer) {
+    AsyncFutureResult<Boolean>  result = AsyncFutureFactory.getInstance().createAsyncFutureResult();
+    try {
+      result.set(forEach(consumer));
+    } catch (Throwable t) {
+      result.setException(t);
+    }
+    return result;
+  }
+
   @Override
   public T[] toArray(final T[] a) {
     return findAll().toArray(a);
diff --git a/platform/util/src/com/intellij/util/EmptyQuery.java b/platform/core-api/src/com/intellij/util/EmptyQuery.java
similarity index 85%
rename from platform/util/src/com/intellij/util/EmptyQuery.java
rename to platform/core-api/src/com/intellij/util/EmptyQuery.java
index f28ce27dafbe..7d48cd9a43d7 100644
--- a/platform/util/src/com/intellij/util/EmptyQuery.java
+++ b/platform/core-api/src/com/intellij/util/EmptyQuery.java
@@ -15,6 +15,8 @@
  */
 package com.intellij.util;
 
+import com.intellij.concurrency.AsyncFuture;
+import com.intellij.concurrency.AsyncFutureFactory;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.Collection;
@@ -40,6 +42,11 @@ public class EmptyQuery<R> implements Query<R> {
     return true;
   }
 
+  @Override
+  public AsyncFuture<Boolean> forEachAsync(@NotNull Processor<R> consumer) {
+    return AsyncFutureFactory.wrap(true);
+  }
+
   public R[] toArray(final R[] a) {
     return findAll().toArray(a);
   }
diff --git a/platform/util/src/com/intellij/util/ExecutorsQuery.java b/platform/core-api/src/com/intellij/util/ExecutorsQuery.java
similarity index 100%
rename from platform/util/src/com/intellij/util/ExecutorsQuery.java
rename to platform/core-api/src/com/intellij/util/ExecutorsQuery.java
diff --git a/platform/util/src/com/intellij/util/FilteredQuery.java b/platform/core-api/src/com/intellij/util/FilteredQuery.java
similarity index 75%
rename from platform/util/src/com/intellij/util/FilteredQuery.java
rename to platform/core-api/src/com/intellij/util/FilteredQuery.java
index 8bb540caeadf..108d4a1bc871 100644
--- a/platform/util/src/com/intellij/util/FilteredQuery.java
+++ b/platform/core-api/src/com/intellij/util/FilteredQuery.java
@@ -16,6 +16,7 @@
 
 package com.intellij.util;
 
+import com.intellij.concurrency.AsyncFuture;
 import com.intellij.openapi.util.Condition;
 import org.jetbrains.annotations.NotNull;
 
@@ -43,17 +44,15 @@ public class FilteredQuery<T> implements Query<T> {
 
   @Override
   public boolean forEach(@NotNull final Processor<T> consumer) {
-    myOriginal.forEach(new Processor<T>() {
-      @Override
-      public boolean process(final T t) {
-        return !myFilter.value(t) || consumer.process(t);
-      }
-    });
-
+    myOriginal.forEach(new MyProcessor(consumer));
     return true;
   }
 
   @Override
+  public AsyncFuture<Boolean> forEachAsync(@NotNull Processor<T> consumer) {
+    return myOriginal.forEachAsync(new MyProcessor(consumer));
+  }
+
   @NotNull
   public Collection<T> findAll() {
     CommonProcessors.CollectProcessor<T> processor = new CommonProcessors.CollectProcessor<T>();
@@ -70,4 +69,19 @@ public class FilteredQuery<T> implements Query<T> {
   public Iterator<T> iterator() {
     return findAll().iterator();
   }
+
+  private class MyProcessor implements Processor<T> {
+    private final Processor<T> myConsumer;
+
+    public MyProcessor(Processor<T> consumer) {
+      myConsumer = consumer;
+    }
+
+    public boolean process(final T t) {
+      if (!myFilter.value(t)) return true;
+      if (!myConsumer.process(t)) return false;
+
+      return true;
+    }
+  }
 }
diff --git a/platform/util/src/com/intellij/util/InstanceofQuery.java b/platform/core-api/src/com/intellij/util/InstanceofQuery.java
similarity index 74%
rename from platform/util/src/com/intellij/util/InstanceofQuery.java
rename to platform/core-api/src/com/intellij/util/InstanceofQuery.java
index 72b9fe5b9c29..6d1e5042e1ba 100644
--- a/platform/util/src/com/intellij/util/InstanceofQuery.java
+++ b/platform/core-api/src/com/intellij/util/InstanceofQuery.java
@@ -15,6 +15,7 @@
  */
 package com.intellij.util;
 
+import com.intellij.concurrency.AsyncFuture;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.ArrayList;
@@ -51,16 +52,12 @@ public class InstanceofQuery<T> implements Query<T> {
   }
 
   public boolean forEach(@NotNull final Processor<T> consumer) {
-    return myDelegate.forEach(new Processor() {
-      public boolean process(Object o) {
-        for (Class aClass : myClasses) {
-          if (aClass.isInstance(o)) {
-            return consumer.process(((T)o));
-          }
-        }
-        return true;
-      }
-    });
+    return myDelegate.forEach(new MyProcessor(consumer));
+  }
+
+  @Override
+  public AsyncFuture<Boolean> forEachAsync(@NotNull Processor<T> consumer) {
+    return myDelegate.forEachAsync(new MyProcessor(consumer));
   }
 
   public T[] toArray(T[] a) {
@@ -71,4 +68,21 @@ public class InstanceofQuery<T> implements Query<T> {
   public Iterator<T> iterator() {
     return new UnmodifiableIterator<T>(findAll().iterator());
   }
+
+  private class MyProcessor<T> implements Processor<T> {
+    private final Processor<T> myConsumer;
+
+    public MyProcessor(Processor<T> consumer) {
+      myConsumer = consumer;
+    }
+
+    public boolean process(T o) {
+      for (Class aClass : myClasses) {
+        if (aClass.isInstance(o)) {
+          return myConsumer.process(((T)o));
+        }
+      }
+      return true;
+    }
+  }
 }
diff --git a/platform/util/src/com/intellij/util/LazyQuery.java b/platform/core-api/src/com/intellij/util/LazyQuery.java
similarity index 100%
rename from platform/util/src/com/intellij/util/LazyQuery.java
rename to platform/core-api/src/com/intellij/util/LazyQuery.java
diff --git a/platform/util/src/com/intellij/util/MergeQuery.java b/platform/core-api/src/com/intellij/util/MergeQuery.java
similarity index 66%
rename from platform/util/src/com/intellij/util/MergeQuery.java
rename to platform/core-api/src/com/intellij/util/MergeQuery.java
index 1f221aa3e10d..242e9ba51ae4 100644
--- a/platform/util/src/com/intellij/util/MergeQuery.java
+++ b/platform/core-api/src/com/intellij/util/MergeQuery.java
@@ -19,6 +19,7 @@
  */
 package com.intellij.util;
 
+import com.intellij.concurrency.*;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.ArrayList;
@@ -52,6 +53,27 @@ public class MergeQuery<T> implements Query<T>{
     return processSubQuery(consumer, myQuery1) && processSubQuery(consumer, myQuery2);
   }
 
+  public AsyncFuture<Boolean> forEachAsync(@NotNull final Processor<T> consumer) {
+    final AsyncFutureResult<Boolean> result = AsyncFutureFactory.getInstance().createAsyncFutureResult();
+
+    final AsyncFuture<Boolean> fq = processSubQueryAsync(consumer, myQuery1);
+
+    fq.addConsumer(SameThreadExecutor.INSTANCE, new DefaultResultConsumer<Boolean>(result) {
+      @Override
+      public void onSuccess(Boolean value) {
+        if (!value.booleanValue()) {
+          result.set(false);
+        }
+        else {
+          final AsyncFuture<Boolean> fq2 = processSubQueryAsync(consumer, myQuery2);
+          fq2.addConsumer(SameThreadExecutor.INSTANCE, new DefaultResultConsumer<Boolean>(result));
+        }
+      }
+    });
+    return result;
+  }
+
+
   private <V extends T> boolean processSubQuery(final Processor<T> consumer, Query<V> query1) {
     return query1.forEach(new Processor<V>() {
       public boolean process(final V t) {
@@ -60,6 +82,14 @@ public class MergeQuery<T> implements Query<T>{
     });
   }
 
+  private <V extends T> AsyncFuture<Boolean> processSubQueryAsync(final Processor<T> consumer, Query<V> query1) {
+    return query1.forEachAsync(new Processor<V>() {
+      public boolean process(final V t) {
+        return consumer.process(t);
+      }
+    });
+  }
+
   public T[] toArray(final T[] a) {
     final Collection<T> results = findAll();
     return results.toArray(a);
diff --git a/platform/util/src/com/intellij/util/Query.java b/platform/core-api/src/com/intellij/util/Query.java
similarity index 93%
rename from platform/util/src/com/intellij/util/Query.java
rename to platform/core-api/src/com/intellij/util/Query.java
index 01f084ebc317..555b285db12e 100644
--- a/platform/util/src/com/intellij/util/Query.java
+++ b/platform/core-api/src/com/intellij/util/Query.java
@@ -15,6 +15,7 @@
  */
 package com.intellij.util;
 
+import com.intellij.concurrency.AsyncFuture;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -46,5 +47,7 @@ public interface Query<Result> extends Iterable<Result> {
    */
   boolean forEach(@NotNull Processor<Result> consumer);
 
+  AsyncFuture<Boolean> forEachAsync(@NotNull Processor<Result> consumer);
+
   Result[] toArray(Result[] a);
 }
diff --git a/platform/util/src/com/intellij/util/QueryExecutor.java b/platform/core-api/src/com/intellij/util/QueryExecutor.java
similarity index 100%
rename from platform/util/src/com/intellij/util/QueryExecutor.java
rename to platform/core-api/src/com/intellij/util/QueryExecutor.java
diff --git a/platform/util/src/com/intellij/util/QueryFactory.java b/platform/core-api/src/com/intellij/util/QueryFactory.java
similarity index 100%
rename from platform/util/src/com/intellij/util/QueryFactory.java
rename to platform/core-api/src/com/intellij/util/QueryFactory.java
diff --git a/platform/util/src/com/intellij/util/UniqueResultsQuery.java b/platform/core-api/src/com/intellij/util/UniqueResultsQuery.java
similarity index 72%
rename from platform/util/src/com/intellij/util/UniqueResultsQuery.java
rename to platform/core-api/src/com/intellij/util/UniqueResultsQuery.java
index e4d98866d809..44cce85e7027 100644
--- a/platform/util/src/com/intellij/util/UniqueResultsQuery.java
+++ b/platform/core-api/src/com/intellij/util/UniqueResultsQuery.java
@@ -16,6 +16,7 @@
 
 package com.intellij.util;
 
+import com.intellij.concurrency.AsyncFuture;
 import gnu.trove.THashSet;
 import gnu.trove.TObjectHashingStrategy;
 import org.jetbrains.annotations.NotNull;
@@ -54,14 +55,20 @@ public class UniqueResultsQuery<T, M> implements Query<T> {
     return process(consumer, Collections.synchronizedSet(new THashSet<M>(myHashingStrategy)));
   }
 
-  private boolean process(final Processor<T> consumer, final Set<M> processedElements) {
-    return myOriginal.forEach(new Processor<T>() {
-      public boolean process(final T t) {
-        return !processedElements.add(myMapper.fun(t)) || consumer.process(t);
-      }
-    });
+  @Override
+  public AsyncFuture<Boolean> forEachAsync(@NotNull Processor<T> consumer) {
+    return processAsync(consumer, Collections.synchronizedSet(new THashSet<M>(myHashingStrategy)));
   }
 
+  private boolean process(final Processor<T> consumer, final Set<M> processedElements) {
+    return myOriginal.forEach(new MyProcessor(processedElements, consumer));
+  }
+
+  private AsyncFuture<Boolean> processAsync(final Processor<T> consumer, final Set<M> processedElements) {
+    return myOriginal.forEachAsync(new MyProcessor(processedElements, consumer));
+  }
+
+
   @NotNull
   public Collection<T> findAll() {
     if (myMapper == Function.ID) {
@@ -84,4 +91,18 @@ public class UniqueResultsQuery<T, M> implements Query<T> {
   public Iterator<T> iterator() {
     return findAll().iterator();
   }
+
+  private class MyProcessor implements Processor<T> {
+    private final Set<M> myProcessedElements;
+    private final Processor<T> myConsumer;
+
+    public MyProcessor(Set<M> processedElements, Processor<T> consumer) {
+      myProcessedElements = processedElements;
+      myConsumer = consumer;
+    }
+
+    public boolean process(final T t) {
+      return !myProcessedElements.add(myMapper.fun(t)) || myConsumer.process(t);
+    }
+  }
 }
diff --git a/platform/core-impl/src/com/intellij/core/CoreApplicationEnvironment.java b/platform/core-impl/src/com/intellij/core/CoreApplicationEnvironment.java
index 344de889eb9f..8abd1d29d9e0 100644
--- a/platform/core-impl/src/com/intellij/core/CoreApplicationEnvironment.java
+++ b/platform/core-impl/src/com/intellij/core/CoreApplicationEnvironment.java
@@ -135,7 +135,12 @@ public class CoreApplicationEnvironment {
 
     ProgressIndicatorProvider.ourInstance = createProgressIndicatorProvider();
 
-    myApplication.registerService(JobLauncher.class, new JobLauncher() {
+    myApplication.registerService(JobLauncher.class, createJobLauncher());
+
+  }
+
+  protected JobLauncher createJobLauncher() {
+    return new JobLauncher() {
       @Override
       public <T> boolean invokeConcurrentlyUnderProgress(@NotNull List<T> things,
                                                          ProgressIndicator progress,
@@ -195,8 +200,7 @@ public class CoreApplicationEnvironment {
           });
         return null;
       }
-    });
-
+    };
   }
 
   protected ProgressIndicatorProvider createProgressIndicatorProvider() {
diff --git a/platform/indexing-api/src/com/intellij/psi/search/SearchRequestQuery.java b/platform/indexing-api/src/com/intellij/psi/search/SearchRequestQuery.java
index b9f31565a372..c51e984fba9b 100644
--- a/platform/indexing-api/src/com/intellij/psi/search/SearchRequestQuery.java
+++ b/platform/indexing-api/src/com/intellij/psi/search/SearchRequestQuery.java
@@ -1,5 +1,6 @@
 package com.intellij.psi.search;
 
+import com.intellij.concurrency.AsyncFuture;
 import com.intellij.openapi.project.Project;
 import com.intellij.psi.PsiReference;
 import com.intellij.util.AbstractQuery;
@@ -18,6 +19,11 @@ public class SearchRequestQuery extends AbstractQuery<PsiReference> {
     myRequests = requests;
   }
 
+  @Override
+  protected AsyncFuture<Boolean> processResultsAsync(@NotNull Processor<PsiReference> consumer) {
+    return PsiSearchHelper.SERVICE.getInstance(myProject).processRequestsAsync(myRequests, consumer);
+  }
+
   @Override
   protected boolean processResults(@NotNull Processor<PsiReference> consumer) {
     return PsiSearchHelper.SERVICE.getInstance(myProject).processRequests(myRequests, consumer);
diff --git a/platform/indexing-impl/src/com/intellij/psi/impl/search/PsiSearchHelperImpl.java b/platform/indexing-impl/src/com/intellij/psi/impl/search/PsiSearchHelperImpl.java
index 5147ccf3fa45..4714408b1b7c 100644
--- a/platform/indexing-impl/src/com/intellij/psi/impl/search/PsiSearchHelperImpl.java
+++ b/platform/indexing-impl/src/com/intellij/psi/impl/search/PsiSearchHelperImpl.java
@@ -275,7 +275,7 @@ public class PsiSearchHelperImpl implements PsiSearchHelper {
       });
 
       final AsyncFutureResult<Boolean> ourResult = AsyncFutureFactory.getInstance().createAsyncFutureResult();
-      completed.addConsumer(SameThreadExecutor.INSTANCE, new ResultConsumer<Boolean>() {
+      completed.addConsumer(SameThreadExecutor.INSTANCE, new DefaultResultConsumer<Boolean>(ourResult) {
         @Override
         public void onSuccess(Boolean value) {
           if (pceThrown.get())
@@ -510,42 +510,72 @@ public class PsiSearchHelperImpl implements PsiSearchHelper {
   }
 
   @Override
-  public AsyncFuture<Boolean> processRequestsAsync(@NotNull SearchRequestCollector request, @NotNull Processor<PsiReference> processor) {
-    throw new UnsupportedOperationException("Not implemented");
+  public boolean processRequests(@NotNull SearchRequestCollector request, @NotNull Processor<PsiReference> processor) {
+    return AsyncUtil.get(processRequestsAsync(request, processor));
   }
 
   @Override
-  public boolean processRequests(@NotNull SearchRequestCollector collector, @NotNull Processor<PsiReference> processor) {
-    Map<SearchRequestCollector, Processor<PsiReference>> collectors = ContainerUtil.newHashMap();
+  public AsyncFuture<Boolean> processRequestsAsync(@NotNull SearchRequestCollector collector, @NotNull Processor<PsiReference> processor) {
+    final Map<SearchRequestCollector, Processor<PsiReference>> collectors = ContainerUtil.newHashMap();
     collectors.put(collector, processor);
 
     appendCollectorsFromQueryRequests(collectors);
 
-    ProgressIndicator progress = ProgressIndicatorProvider.getGlobalProgressIndicator();
-    do {
-      MultiMap<Set<IdIndexEntry>, RequestWithProcessor> globals = new MultiMap<Set<IdIndexEntry>, RequestWithProcessor>();
-      List<Computable<Boolean>> customs = ContainerUtil.newArrayList();
-      Set<RequestWithProcessor> locals = ContainerUtil.newLinkedHashSet();
-      distributePrimitives(collectors, locals, globals, customs);
+    final ProgressIndicator progress = ProgressIndicatorProvider.getGlobalProgressIndicator();
+    final DoWhile doWhile = new DoWhile() {
 
-      if (!processGlobalRequestsOptimized(globals, progress)) {
-        return false;
+      @Override
+      protected AsyncFuture<Boolean> body() {
+        final AsyncFutureResult<Boolean> result = AsyncFutureFactory.getInstance().createAsyncFutureResult();
+        MultiMap<Set<IdIndexEntry>, RequestWithProcessor> globals = new MultiMap<Set<IdIndexEntry>, RequestWithProcessor>();
+        final List<Computable<Boolean>> customs = ContainerUtil.newArrayList();
+        final Set<RequestWithProcessor> locals = ContainerUtil.newLinkedHashSet();
+        distributePrimitives(collectors, locals, globals, customs);
+        processGlobalRequestsOptimizedAsync(globals, progress)
+          .addConsumer(SameThreadExecutor.INSTANCE, new DefaultResultConsumer<Boolean>(result) {
+            @Override
+            public void onSuccess(Boolean value) {
+              if (!value.booleanValue()) {
+                result.set(value);
+              }
+              else {
+                final Iterate<RequestWithProcessor> iterate = new Iterate<RequestWithProcessor>(locals) {
+                  @Override
+                  protected AsyncFuture<Boolean> process(RequestWithProcessor local) {
+                    return processSingleRequestAsync(local.request, local.refProcessor);
+                  }
+                };
+
+                iterate.getResult()
+                  .addConsumer(SameThreadExecutor.INSTANCE, new DefaultResultConsumer<Boolean>(result) {
+                    @Override
+                    public void onSuccess(Boolean value) {
+                      if (!value.booleanValue()) {
+                        result.set(false);
+                        return;
+                      }
+                      for (Computable<Boolean> custom : customs) {
+                        if (!custom.compute()) {
+                          result.set(false);
+                          return;
+                        }
+                      }
+                      result.set(true);
+                    }
+                  });
+              }
+            }
+          });
+        return result;
       }
 
-      for (RequestWithProcessor local : locals) {
-        if (!processSingleRequest(local.request, local.refProcessor)) {
-          return false;
-        }
+      @Override
+      protected boolean condition() {
+        return appendCollectorsFromQueryRequests(collectors);
       }
+    };
 
-      for (Computable<Boolean> custom : customs) {
-        if (!custom.compute()) {
-          return false;
-        }
-      }
-    } while (appendCollectorsFromQueryRequests(collectors));
-
-    return true;
+    return doWhile.getResult();
   }
 
   private static boolean appendCollectorsFromQueryRequests(Map<SearchRequestCollector, Processor<PsiReference>> collectors) {
@@ -563,11 +593,6 @@ public class PsiSearchHelperImpl implements PsiSearchHelper {
     return changed;
   }
 
-  private boolean processGlobalRequestsOptimized(MultiMap<Set<IdIndexEntry>, RequestWithProcessor> singles,
-                                                 final ProgressIndicator progress) {
-    return AsyncUtil.get(processGlobalRequestsOptimizedAsync(singles, progress));
-  }
-
   private AsyncFuture<Boolean> processGlobalRequestsOptimizedAsync(MultiMap<Set<IdIndexEntry>, RequestWithProcessor> singles,
                                                  final ProgressIndicator progress) {
     if (singles.isEmpty()) {