1 files changed, 8 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/runtime/BlazeModule.java b/src/main/java/com/google/devtools/build/lib/runtime/BlazeModule.java
index 0037fd0d2f..25f692a723 100644
--- a/src/main/java/com/google/devtools/build/lib/runtime/BlazeModule.java
+++ b/src/main/java/com/google/devtools/build/lib/runtime/BlazeModule.java
@@ -13,6 +13,7 @@
 // limitations under the License.
 package com.google.devtools.build.lib.runtime;
 
+import com.google.common.base.Function;
 import com.google.common.base.Predicate;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
@@ -25,9 +26,11 @@ import com.google.devtools.build.lib.analysis.ConfiguredRuleClassProvider;
 import com.google.devtools.build.lib.analysis.WorkspaceStatusAction;
 import com.google.devtools.build.lib.cmdline.Label;
 import com.google.devtools.build.lib.exec.OutputService;
+import com.google.devtools.build.lib.packages.AttributeContainer;
 import com.google.devtools.build.lib.packages.NoSuchThingException;
 import com.google.devtools.build.lib.packages.PackageFactory;
 import com.google.devtools.build.lib.packages.Preprocessor;
+import com.google.devtools.build.lib.packages.RuleClass;
 import com.google.devtools.build.lib.query2.AbstractBlazeQueryEnvironment;
 import com.google.devtools.build.lib.query2.QueryEnvironmentFactory;
 import com.google.devtools.build.lib.query2.engine.QueryEnvironment.QueryFunction;
@@ -188,6 +191,11 @@ public abstract class BlazeModule {
     return ImmutableList.of();
   }
 
+  @Nullable
+  protected Function<RuleClass, AttributeContainer> getAttributeContainerSupplier() {
+    return null;
+  }
+
   /**
    * Services provided for Blaze modules via BlazeRuntime.
    */