1 files changed, 49 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/CoverageReportFunction.java b/src/main/java/com/google/devtools/build/lib/skyframe/CoverageReportFunction.java
new file mode 100644
index 0000000000..8d6fe3d684
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/CoverageReportFunction.java
@@ -0,0 +1,49 @@
+// Copyright 2014 Google Inc. 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.skyframe;
+
+import com.google.common.base.Preconditions;
+import com.google.devtools.build.lib.actions.Action;
+import com.google.devtools.build.skyframe.SkyFunction;
+import com.google.devtools.build.skyframe.SkyKey;
+import com.google.devtools.build.skyframe.SkyValue;
+
+/**
+ * A Skyframe function to calculate the coverage report Action and Artifacts.
+ */
+public class CoverageReportFunction implements SkyFunction {
+  CoverageReportFunction() {}
+
+  @Override
+  public SkyValue compute(SkyKey skyKey, Environment env) {
+    Preconditions.checkState(
+        CoverageReportValue.SKY_KEY.equals(skyKey), String.format(
+            "Expected %s for SkyKey but got %s instead", CoverageReportValue.SKY_KEY, skyKey));
+
+    Action action = PrecomputedValue.COVERAGE_REPORT_KEY.get(env);
+    if (action == null) {
+      return null;
+    }
+
+    return new CoverageReportValue(
+        action.getOutputs(),
+        action);
+  }
+
+  @Override
+  public String extractTag(SkyKey skyKey) {
+    return null;
+  }
+}