Reimplement target pattern parsing in Skyframe.

This is currently not hooked up, and we're passing (potentially) massive
numbers of targets around.

--
MOS_MIGRATED_REVID=105395404

1 files changed, 111 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/TestSuiteExpansionValue.java b/src/main/java/com/google/devtools/build/lib/skyframe/TestSuiteExpansionValue.java
new file mode 100644
index 0000000000..4f108ba513
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/TestSuiteExpansionValue.java
@@ -0,0 +1,111 @@
+// Copyright 2015 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.skyframe;
+
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableSet;
+import com.google.devtools.build.lib.cmdline.Label;
+import com.google.devtools.build.lib.cmdline.ResolvedTargets;
+import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
+import com.google.devtools.build.lib.concurrent.ThreadSafety.ThreadSafe;
+import com.google.devtools.build.lib.packages.Target;
+import com.google.devtools.build.skyframe.SkyKey;
+import com.google.devtools.build.skyframe.SkyValue;
+
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.Serializable;
+
+/**
+ * A value referring to a computed set of resolved targets. This is used for the results of target
+ * pattern parsing.
+ */
+@Immutable
+@ThreadSafe
+@VisibleForTesting
+public final class TestSuiteExpansionValue implements SkyValue {
+  private ResolvedTargets<Target> targets;
+
+  TestSuiteExpansionValue(ResolvedTargets<Target> targets) {
+    this.targets = Preconditions.checkNotNull(targets);
+  }
+
+  public ResolvedTargets<Target> getTargets() {
+    return targets;
+  }
+
+  @SuppressWarnings("unused")
+  private void writeObject(ObjectOutputStream out) {
+    throw new UnsupportedOperationException();
+  }
+
+  @SuppressWarnings("unused")
+  private void readObject(ObjectInputStream in) {
+    throw new UnsupportedOperationException();
+  }
+
+  @SuppressWarnings("unused")
+  private void readObjectNoData() {
+    throw new UnsupportedOperationException();
+  }
+
+  /**
+   * Create a target pattern value key.
+   *
+   * @param targets the set of targets to be expanded
+   */
+  @ThreadSafe
+  public static SkyKey key(ImmutableSet<Label> targets) {
+    return new SkyKey(SkyFunctions.TEST_SUITE_EXPANSION, new TestSuiteExpansion(targets));
+  }
+
+  /**
+   * A list of targets of which all test suites should be expanded.
+   */
+  @ThreadSafe
+  static final class TestSuiteExpansion implements Serializable {
+    private final ImmutableSet<Label> targets;
+
+    public TestSuiteExpansion(ImmutableSet<Label> targets) {
+      this.targets = targets;
+    }
+
+    public ImmutableSet<Label> getTargets() {
+      return targets;
+    }
+
+    @Override
+    public String toString() {
+      return "ExpandTestSuites(" + targets.toString() + ")";
+    }
+
+    @Override
+    public int hashCode() {
+      return targets.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+      if (this == obj) {
+        return true;
+      }
+      if (!(obj instanceof TestSuiteExpansion)) {
+        return false;
+      }
+      TestSuiteExpansion other = (TestSuiteExpansion) obj;
+      return other.targets.equals(targets);
+    }
+  }
+}