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// 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.util;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.devtools.build.lib.analysis.ConfiguredTarget;
import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.events.EventHandler;
import com.google.devtools.build.lib.packages.NoSuchTargetException;
import com.google.devtools.build.lib.packages.Target;
import com.google.devtools.build.lib.skyframe.ConfiguredTargetValue;
import com.google.devtools.build.lib.skyframe.PackageValue;
import com.google.devtools.build.lib.skyframe.SkyFunctions;
import com.google.devtools.build.lib.skyframe.SkyframeExecutor;
import com.google.devtools.build.lib.skyframe.TargetMarkerValue;
import com.google.devtools.build.skyframe.ErrorInfo;
import com.google.devtools.build.skyframe.EvaluationResult;
import com.google.devtools.build.skyframe.MemoizingEvaluator;
import com.google.devtools.build.skyframe.SkyKey;
import com.google.devtools.build.skyframe.SkyValue;
import java.util.Collection;
import java.util.List;
import javax.annotation.Nullable;
/**
* Helper functions for manually dealing with a {@link SkyframeExecutor}'s graph in tests.
*/
public class SkyframeExecutorTestUtils {
private SkyframeExecutorTestUtils() {
}
/**
* Returns an existing value, or {@code null} if the given key is not currently in the graph.
*/
@Nullable
public static SkyValue getExistingValue(SkyframeExecutor skyframeExecutor, SkyKey key) {
return skyframeExecutor.getEvaluatorForTesting().getExistingValueForTesting(key);
}
/**
* Returns an existing error info, or {@code null} if the given key is not currently in the
* graph.
*/
@Nullable
public static ErrorInfo getExistingError(SkyframeExecutor skyframeExecutor, SkyKey key) {
return skyframeExecutor.getEvaluatorForTesting().getExistingErrorForTesting(key);
}
/**
* Calls {@link MemoizingEvaluator#evaluate} on the given {@link SkyframeExecutor}'s
* graph.
*/
public static <T extends SkyValue> EvaluationResult<T> evaluate(
SkyframeExecutor skyframeExecutor, SkyKey key, boolean keepGoing,
EventHandler errorEventListener) throws InterruptedException {
return skyframeExecutor.getDriverForTesting().evaluate(ImmutableList.of(key), keepGoing,
SkyframeExecutor.DEFAULT_THREAD_COUNT, errorEventListener);
}
/**
* Returns an existing configured target value, or {@code null} if there is not an appropriate
* configured target value key in the graph.
*
* This helper is provided so legacy tests don't need to know about details of skyframe keys.
*/
@Nullable
public static ConfiguredTargetValue getExistingConfiguredTargetValue(
SkyframeExecutor skyframeExecutor, Label label, BuildConfiguration config) {
SkyKey key = ConfiguredTargetValue.key(label, config);
return (ConfiguredTargetValue) getExistingValue(skyframeExecutor, key);
}
/**
* Returns the configured target for an existing configured target value, or {@code null} if there
* is not an appropriate configured target value key in the graph.
*
* This helper is provided so legacy tests don't need to know about details of skyframe keys.
*/
@Nullable
public static ConfiguredTarget getExistingConfiguredTarget(
SkyframeExecutor skyframeExecutor,
Label label, BuildConfiguration config) {
ConfiguredTargetValue value = getExistingConfiguredTargetValue(skyframeExecutor, label, config);
if (value == null) {
return null;
}
return value.getConfiguredTarget();
}
/**
* Returns all configured targets currently in the graph.
*/
public static Iterable<ConfiguredTarget> getAllExistingConfiguredTargets(
SkyframeExecutor skyframeExecutor) {
Collection<SkyValue> values =
Maps.filterKeys(skyframeExecutor.getEvaluatorForTesting().getValues(),
SkyFunctions.isSkyFunction(SkyFunctions.CONFIGURED_TARGET)).values();
List<ConfiguredTarget> cts = Lists.newArrayList();
for (SkyValue value : values) {
if (value != null) {
cts.add(((ConfiguredTargetValue) value).getConfiguredTarget());
}
}
return cts;
}
/**
* Returns the target for an existing target value, or {@code null} if there is not an appropriate
* target value key in the graph.
*
* This helper is provided so legacy tests don't need to know about details of skyframe keys.
*/
@Nullable
public static Target getExistingTarget(SkyframeExecutor skyframeExecutor,
Label label) {
PackageValue value = (PackageValue) getExistingValue(skyframeExecutor,
PackageValue.key(label.getPackageIdentifier()));
if (value == null) {
return null;
}
try {
return value.getPackage().getTarget(label.getName());
} catch (NoSuchTargetException e) {
return null;
}
}
/**
* Returns the error info for an existing target value, or {@code null} if there is not an
* appropriate target value key in the graph.
*
* This helper is provided so legacy tests don't need to know about details of skyframe keys.
*/
@Nullable
public static ErrorInfo getExistingFailedTarget(SkyframeExecutor skyframeExecutor, Label label) {
SkyKey key = TargetMarkerValue.key(label);
return getExistingError(skyframeExecutor, key);
}
}
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