1 files changed, 104 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/analysis/TargetAndConfiguration.java b/src/main/java/com/google/devtools/build/lib/analysis/TargetAndConfiguration.java
new file mode 100644
index 0000000000..cc0feb6232
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/analysis/TargetAndConfiguration.java
@@ -0,0 +1,104 @@
+// 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.analysis;
+
+import com.google.common.base.Function;
+import com.google.common.base.Preconditions;
+import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
+import com.google.devtools.build.lib.packages.Target;
+import com.google.devtools.build.lib.skyframe.ConfiguredTargetKey;
+import com.google.devtools.build.lib.syntax.Label;
+
+import java.util.Objects;
+
+import javax.annotation.Nullable;
+
+/**
+ * Refers to the pair of a target and a configuration and certain additional information. Not the
+ * same as {@link ConfiguredTarget} -- that also contains the result of the analysis phase.
+ */
+public class TargetAndConfiguration {
+  private final Target target;
+  @Nullable private final BuildConfiguration configuration;
+
+  public TargetAndConfiguration(Target target, @Nullable BuildConfiguration configuration) {
+    this.target = Preconditions.checkNotNull(target);
+    this.configuration = configuration;
+  }
+
+  public TargetAndConfiguration(ConfiguredTarget configuredTarget) {
+    this.target = Preconditions.checkNotNull(configuredTarget).getTarget();
+    this.configuration = configuredTarget.getConfiguration();
+  }
+
+  // The node name in the graph. The name should be unique.
+  // It is not suitable for user display.
+  public String getName() {
+    return target.getLabel() + " "
+        + (configuration == null ? "null" : configuration.shortCacheKey());
+  }
+
+  public static final Function<TargetAndConfiguration, String> NAME_FUNCTION =
+      new Function<TargetAndConfiguration, String>() {
+        @Override
+        public String apply(TargetAndConfiguration node) {
+          return node.getName();
+        }
+      };
+
+  public static final Function<TargetAndConfiguration, ConfiguredTargetKey>
+      TO_LABEL_AND_CONFIGURATION = new Function<TargetAndConfiguration, ConfiguredTargetKey>() {
+        @Override
+        public ConfiguredTargetKey apply(TargetAndConfiguration input) {
+          return new ConfiguredTargetKey(input.getLabel(), input.getConfiguration());
+        }
+      };
+
+  @Override
+  public boolean equals(Object that) {
+    if (this == that) {
+      return true;
+    }
+    if (!(that instanceof TargetAndConfiguration)) {
+      return false;
+    }
+
+    TargetAndConfiguration thatNode = (TargetAndConfiguration) that;
+    return thatNode.target.getLabel().equals(this.target.getLabel()) &&
+        thatNode.configuration == this.configuration;
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(target.getLabel(), configuration);
+  }
+
+  @Override
+  public String toString() {
+    return target.getLabel() + " (" + configuration + ")";
+  }
+
+  public Target getTarget() {
+    return target;
+  }
+
+  public Label getLabel() {
+    return target.getLabel();
+  }
+
+  @Nullable
+  public BuildConfiguration getConfiguration() {
+    return configuration;
+  }
+}