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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.skyframe;
import com.google.auto.value.AutoValue;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
import com.google.devtools.build.lib.analysis.platform.PlatformInfo;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.skyframe.SkyFunctionName;
import com.google.devtools.build.skyframe.SkyKey;
import com.google.devtools.build.skyframe.SkyValue;
import java.util.List;
/**
* A value which represents the map of potential execution platforms and resolved toolchains. This
* value only considers a single toolchain type, which allows for a Skyframe cache per toolchain
* type. Callers will need to consider all toolchain types that are required and merge the results
* together appropriately.
*/
@AutoValue
public abstract class ToolchainResolutionValue implements SkyValue {
// A key representing the input data.
public static SkyKey key(
BuildConfiguration configuration,
Label toolchainType,
PlatformInfo targetPlatform,
List<PlatformInfo> availableExecutionPlatforms) {
return ToolchainResolutionKey.create(
configuration, toolchainType, targetPlatform, availableExecutionPlatforms);
}
/** {@link SkyKey} implementation used for {@link ToolchainResolutionFunction}. */
@AutoValue
public abstract static class ToolchainResolutionKey implements SkyKey {
@Override
public SkyFunctionName functionName() {
return SkyFunctions.TOOLCHAIN_RESOLUTION;
}
public abstract BuildConfiguration configuration();
public abstract Label toolchainType();
public abstract PlatformInfo targetPlatform();
public abstract ImmutableList<PlatformInfo> availableExecutionPlatforms();
public static ToolchainResolutionKey create(
BuildConfiguration configuration,
Label toolchainType,
PlatformInfo targetPlatform,
List<PlatformInfo> availableExecutionPlatforms) {
return new AutoValue_ToolchainResolutionValue_ToolchainResolutionKey(
configuration,
toolchainType,
targetPlatform,
ImmutableList.copyOf(availableExecutionPlatforms));
}
}
public static ToolchainResolutionValue create(
ImmutableMap<PlatformInfo, Label> availableToolchainLabels) {
return new AutoValue_ToolchainResolutionValue(availableToolchainLabels);
}
/**
* Returns the resolved set of toolchain labels (as {@link Label}) for the requested toolchain
* type, keyed by the execution platforms (as {@link PlatformInfo}). Ordering is not preserved, if
* the caller cares about the order of platforms it must take care of that directly.
*/
public abstract ImmutableMap<PlatformInfo, Label> availableToolchainLabels();
}
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