// Copyright 2015 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.rules.java;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.analysis.TransitiveInfoProvider;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
/**
* A target that can provide proguard specifications to Android binaries.
*/
@Immutable
public final class ProguardSpecProvider implements TransitiveInfoProvider {
private final NestedSet<Artifact> transitiveProguardSpecs;
public ProguardSpecProvider(NestedSet<Artifact> transitiveProguardSpecs) {
this.transitiveProguardSpecs = transitiveProguardSpecs;
}
public NestedSet<Artifact> getTransitiveProguardSpecs() {
return transitiveProguardSpecs;
}
public static ProguardSpecProvider merge(Iterable<ProguardSpecProvider> providers) {
NestedSetBuilder<Artifact> specs = NestedSetBuilder.stableOrder();
for (ProguardSpecProvider wrapper : providers) {
specs.addTransitive(wrapper.getTransitiveProguardSpecs());
}
return new ProguardSpecProvider(specs.build());
}
}