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// 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.actions;
import com.google.common.base.MoreObjects;
import com.google.common.collect.Interner;
import com.google.devtools.build.lib.actions.ActionLookupValue.ActionLookupKey;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.concurrent.BlazeInterners;
import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec;
import com.google.devtools.build.skyframe.FunctionHermeticity;
import com.google.devtools.build.skyframe.ShareabilityOfValue;
import com.google.devtools.build.skyframe.SkyFunctionName;
import com.google.devtools.build.skyframe.SkyKey;
/** Data that uniquely identifies an action. */
@AutoCodec
public class ActionLookupData implements SkyKey {
private static final Interner<ActionLookupData> INTERNER = BlazeInterners.newWeakInterner();
// Test actions are not shareable.
// Action execution writes to disk and can be invalidated by disk state, so is non-hermetic.
public static final SkyFunctionName NAME =
SkyFunctionName.create(
"ACTION_EXECUTION", ShareabilityOfValue.SOMETIMES, FunctionHermeticity.NONHERMETIC);
private final ActionLookupKey actionLookupKey;
private final int actionIndex;
private ActionLookupData(ActionLookupKey actionLookupKey, int actionIndex) {
this.actionLookupKey = actionLookupKey;
this.actionIndex = actionIndex;
}
@AutoCodec.Instantiator
public static ActionLookupData create(ActionLookupKey actionLookupKey, int actionIndex) {
return INTERNER.intern(new ActionLookupData(actionLookupKey, actionIndex));
}
public SkyKey getActionLookupKey() {
return actionLookupKey;
}
/**
* Index of the action in question in the node keyed by {@link #getActionLookupKey}. Should be
* passed to {@link ActionLookupValue#getAction}.
*/
public int getActionIndex() {
return actionIndex;
}
public Label getLabelForErrors() {
return ((ActionLookupKey) actionLookupKey.argument()).getLabel();
}
@Override
public int hashCode() {
return 37 * actionLookupKey.hashCode() + actionIndex;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof ActionLookupData)) {
return false;
}
ActionLookupData that = (ActionLookupData) obj;
return this.actionIndex == that.actionIndex
&& this.actionLookupKey.equals(that.actionLookupKey);
}
@Override
public String toString() {
return MoreObjects.toStringHelper(this)
.add("actionLookupKey", actionLookupKey)
.add("actionIndex", actionIndex)
.toString();
}
@Override
public SkyFunctionName functionName() {
return NAME;
}
}
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