/*
 * Copyright 2013-present Facebook, Inc.
 *
 * 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.facebook.buck.cxx;

import com.facebook.buck.model.BuildTarget;
import com.facebook.buck.rules.AbstractDescriptionArg;
import com.facebook.buck.rules.BuildRuleParams;
import com.facebook.buck.rules.BuildRuleResolver;
import com.facebook.buck.rules.Description;
import com.facebook.buck.rules.SourcePath;
import com.facebook.buck.rules.SourcePathResolver;
import com.facebook.buck.rules.SourcePathRuleFinder;
import com.facebook.buck.rules.TargetGraph;
import com.facebook.infer.annotation.SuppressFieldNotInitialized;
import com.google.common.collect.ImmutableSortedSet;

public class CxxPrecompiledHeaderDescription implements
    Description<CxxPrecompiledHeaderDescription.Arg> {

  @Override
  public Arg createUnpopulatedConstructorArg() {
    return new Arg();
  }

  @Override
  public <A extends Arg> CxxPrecompiledHeaderTemplate createBuildRule(
        TargetGraph targetGraph,
        BuildRuleParams params,
        BuildRuleResolver ruleResolver,
        A args) {
    return new CxxPrecompiledHeaderTemplate(
        params.appendExtraDeps(ruleResolver.getAllRules(args.deps)),
        ruleResolver,
        new SourcePathResolver(new SourcePathRuleFinder(ruleResolver)),
        args.src);
  }

  @SuppressFieldNotInitialized
  public static class Arg extends AbstractDescriptionArg {
    public SourcePath src;
    public ImmutableSortedSet<BuildTarget> deps;
  }

}

@@ -1064,16 +1064,69 @@
 tGraph;%0A
+import com.facebook.buck.versions.VersionPropagator;%0A
 import c
@@ -1345,16 +1345,76 @@
 ion.Arg%3E
+,%0A    VersionPropagator%3CCxxPrecompiledHeaderDescription.Arg%3E
  %7B%0A%0A  @O

make CxxPrecompiledHeaderDescription implement VersionPropagator