1 files changed, 27 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/analysis/config/transitions/ConfigurationTransition.java b/src/main/java/com/google/devtools/build/lib/analysis/config/transitions/ConfigurationTransition.java
new file mode 100644
index 0000000000..7fb3a66f36
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/analysis/config/transitions/ConfigurationTransition.java
@@ -0,0 +1,27 @@
+// Copyright 2017 The Bazel Authors. All rights reserved.
+//
+// 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.google.devtools.build.lib.analysis.config.transitions;
+
+/**
+ * A configuration transition.
+ */
+public interface ConfigurationTransition {
+  /**
+   * Does this transition switch to a "host" configuration?
+   */
+  default boolean isHostTransition() {
+    return false;
+  }
+}