1 files changed, 90 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/PrepareDepsOfPatternsValue.java b/src/main/java/com/google/devtools/build/lib/skyframe/PrepareDepsOfPatternsValue.java
new file mode 100644
index 0000000000..88f034cee2
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/PrepareDepsOfPatternsValue.java
@@ -0,0 +1,90 @@
+// Copyright 2015 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.collect.ImmutableList;
+import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
+import com.google.devtools.build.lib.concurrent.ThreadSafety.ThreadSafe;
+import com.google.devtools.build.lib.pkgcache.FilteringPolicy;
+import com.google.devtools.build.skyframe.SkyKey;
+import com.google.devtools.build.skyframe.SkyValue;
+
+import java.io.Serializable;
+import java.util.Objects;
+
+/**
+ * The value returned by {@link PrepareDepsOfPatternsFunction}. Because that function is
+ * invoked only for its side effect (i.e. ensuring the graph contains targets matching the
+ * pattern sequence and their transitive dependencies), this value carries no information.
+ */
+@Immutable
+@ThreadSafe
+public final class PrepareDepsOfPatternsValue implements SkyValue {
+  public static final PrepareDepsOfPatternsValue INSTANCE = new PrepareDepsOfPatternsValue();
+
+  private PrepareDepsOfPatternsValue() {
+  }
+
+  @ThreadSafe
+  public static SkyKey key(ImmutableList<String> patterns, FilteringPolicy policy,
+      String offset) {
+    return new SkyKey(SkyFunctions.PREPARE_DEPS_OF_PATTERNS,
+        new TargetPatternSequence(patterns, policy, offset));
+  }
+
+  /** The argument value for SkyKeys of {@link PrepareDepsOfPatternsFunction}. */
+  @ThreadSafe
+  public static class TargetPatternSequence implements Serializable {
+    private final ImmutableList<String> patterns;
+    private final FilteringPolicy policy;
+    private final String offset;
+
+    public TargetPatternSequence(ImmutableList<String> patterns,
+        FilteringPolicy policy, String offset) {
+      this.patterns = patterns;
+      this.policy = policy;
+      this.offset = offset;
+    }
+
+    public ImmutableList<String> getPatterns() {
+      return patterns;
+    }
+
+    public FilteringPolicy getPolicy() {
+      return policy;
+    }
+
+    public String getOffset() {
+      return offset;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+      if (this == o) {
+        return true;
+      }
+      if (!(o instanceof TargetPatternSequence)) {
+        return false;
+      }
+      TargetPatternSequence that = (TargetPatternSequence) o;
+      return offset.equals(that.offset) && patterns.equals(that.patterns)
+          && policy.equals(that.policy);
+    }
+
+    @Override
+    public int hashCode() {
+      return Objects.hash(patterns, policy, offset);
+    }
+  }
+}