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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.analysis.config;
import com.google.devtools.build.lib.packages.AspectDefinition;
import java.util.Collection;
/**
* A wrapper for {@link AspectDefinition.Builder} that supports access to {@link
* com.google.devtools.build.lib.analysis} classes.
*
* <p>{@link AspectDefinition.Builder} is in {@link com.google.devtools.build.lib.packages}, so it
* can't reference analysis-time objects.
*/
public class ConfigAwareAspectBuilder {
private final AspectDefinition.Builder aspectBuilder;
/**
* Instantiates a builder wrapped around the given {@link AspectDefinition.Builder}.
*/
private ConfigAwareAspectBuilder(AspectDefinition.Builder aspectBuilder) {
this.aspectBuilder = aspectBuilder;
}
/**
* Instantiates a builder wrapped around the given {@link AspectDefinition.Builder}.
*/
public static ConfigAwareAspectBuilder of(AspectDefinition.Builder aspectBuilder) {
return new ConfigAwareAspectBuilder(aspectBuilder);
}
/**
* Returns the {@link AspectDefinition.Builder} this object wraps.
*
* <p>Call this when done with config-specific building to re-expose the builder methods in
* {@link AspectDefinition.Builder}
*/
public AspectDefinition.Builder originalBuilder() {
return aspectBuilder;
}
/**
* Declares the fragments required by this aspect for the configuration of the host machine this
* aspect's actions execute on.
*
* <p>This is not the same as the aspect's configuration. The aspect's configuration is its
* <i>target</i> configuration, which determines the platform it builds outputs for. The actions
* created by this aspect run on a host machine, which is what the host configuration corresponds
* to.
*
* <p>The value is inherited by subclasses.
*/
public ConfigAwareAspectBuilder requiresHostConfigurationFragments(
Class<? extends BuildConfiguration.Fragment>... configurationFragments) {
aspectBuilder.requiresConfigurationFragments(HostTransition.INSTANCE, configurationFragments);
return this;
}
/**
* Declares the fragments required by this aspect for the configuration of the host machine this
* aspect's actions execute on.
*
* <p>This is not the same as the aspect's configuration. The aspect's configuration is its
* <i>target</i> configuration, which determines the platform it builds outputs for. The actions
* created by this aspect run on a host machine, which is what the host configuration corresponds
* to.
*
* <p>In contrast to {@link #requiresHostConfigurationFragments(Class...)}, this method takes
* Skylark module names of fragments instead of their classes.
*/
public ConfigAwareAspectBuilder requiresHostConfigurationFragmentsBySkylarkModuleName(
Collection<String> configurationFragmentNames) {
aspectBuilder.requiresConfigurationFragmentsBySkylarkModuleName(HostTransition.INSTANCE,
configurationFragmentNames);
return this;
}
}
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