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// Copyright 2014 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.rules.proto;
import com.google.common.collect.ImmutableList;
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.concurrent.ThreadSafety.Immutable;
import com.google.devtools.build.lib.syntax.SkylarkCallable;
import com.google.devtools.build.lib.syntax.SkylarkModule;
/**
* Configured target classes that implement this class can contribute .proto files to the
* compilation of proto_library rules.
*/
@Immutable
@SkylarkModule(name = "ProtoSourcesProvider", doc = "")
public final class ProtoSourcesProvider implements TransitiveInfoProvider {
/** The name of the field in Skylark used to access this class. */
public static final String SKYLARK_NAME = "proto";
private final NestedSet<Artifact> transitiveImports;
private final NestedSet<Artifact> transitiveProtoSources;
private final ImmutableList<Artifact> protoSources;
public ProtoSourcesProvider(
NestedSet<Artifact> transitiveImports,
NestedSet<Artifact> transitiveProtoSources,
ImmutableList<Artifact> protoSources) {
this.transitiveImports = transitiveImports;
this.transitiveProtoSources = transitiveProtoSources;
this.protoSources = protoSources;
}
/**
* Transitive imports including weak dependencies
* This determines the order of "-I" arguments to the protocol compiler, and
* that is probably important
*/
@SkylarkCallable(
name = "transitive_imports",
doc = "Transitive imports including weak dependencies",
structField = true)
public NestedSet<Artifact> getTransitiveImports() {
return transitiveImports;
}
/**
* Returns the proto sources for this rule and all its dependent protocol
* buffer rules.
*/
@SkylarkCallable(
name = "transitive_sources",
doc = "Proto sources for this rule and all its dependent protocol buffer rules.",
structField = true)
public NestedSet<Artifact> getTransitiveProtoSources() {
return transitiveProtoSources;
}
/**
* Returns the proto sources from the 'srcs' attribute. If the library is a proxy library
* that has no sources, return the sources from the direct deps.
*/
public ImmutableList<Artifact> getProtoSources() {
return protoSources;
}
}
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