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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.objc;
import static com.google.devtools.build.lib.packages.Attribute.ConfigurationTransition.HOST;
import static com.google.devtools.build.lib.packages.Attribute.attr;
import static com.google.devtools.build.lib.packages.Type.BOOLEAN;
import static com.google.devtools.build.lib.packages.Type.LABEL;
import static com.google.devtools.build.lib.packages.Type.LABEL_LIST;
import com.google.devtools.build.lib.analysis.BaseRuleClasses;
import com.google.devtools.build.lib.analysis.BlazeRule;
import com.google.devtools.build.lib.analysis.RuleDefinition;
import com.google.devtools.build.lib.analysis.RuleDefinitionEnvironment;
import com.google.devtools.build.lib.packages.RuleClass;
import com.google.devtools.build.lib.packages.RuleClass.Builder;
/**
* Rule definition for objc_proto_library.
*
* This is a temporary rule until it is better known how to support proto_library rules.
*/
@BlazeRule(name = "objc_proto_library",
factoryClass = ObjcProtoLibrary.class,
ancestors = { BaseRuleClasses.RuleBase.class, ObjcRuleClasses.ObjcProtoRule.class })
public class ObjcProtoLibraryRule implements RuleDefinition {
static final String OPTIONS_FILE_ATTR = "options_file";
static final String OUTPUT_CPP_ATTR = "output_cpp";
static final String LIBPROTOBUF_ATTR = "$lib_protobuf";
@Override
public RuleClass build(Builder builder, final RuleDefinitionEnvironment env) {
return builder
/* <!-- #BLAZE_RULE(objc_proto_library).ATTRIBUTE(deps) -->
The directly depended upon proto_library rules.
<!-- #END_BLAZE_RULE.ATTRIBUTE -->*/
.override(attr("deps", LABEL_LIST)
.allowedRuleClasses("proto_library", "filegroup")
.legacyAllowAnyFileType())
/* <!-- #BLAZE_RULE(objc_proto_library).ATTRIBUTE(options_file) -->
Optional options file to apply to protos which affects compilation (e.g. class
whitelist/blacklist settings).
<!-- #END_BLAZE_RULE.ATTRIBUTE -->*/
.add(attr(OPTIONS_FILE_ATTR, LABEL).legacyAllowAnyFileType().singleArtifact().cfg(HOST))
/* <!-- #BLAZE_RULE(objc_proto_library).ATTRIBUTE(output_cpp) -->
If true, output C++ rather than ObjC.
<!-- #END_BLAZE_RULE.ATTRIBUTE -->*/
.add(attr(OUTPUT_CPP_ATTR, BOOLEAN).value(false))
// TODO(bazel-team): Use //external:objc_proto_lib when bind() support is a little better
.add(attr(LIBPROTOBUF_ATTR, LABEL).allowedRuleClasses("objc_library")
.value(env.getLabel(
"//googlemac/ThirdParty/ProtocolBuffers2/objectivec:ProtocolBuffers_lib")))
.add(attr("$xcodegen", LABEL).cfg(HOST).exec()
.value(env.getLabel("//tools/objc:xcodegen")))
.build();
}
}
/*<!-- #BLAZE_RULE (NAME = objc_proto_library, TYPE = LIBRARY, FAMILY = Objective-C) -->
${ATTRIBUTE_SIGNATURE}
<p>This rule produces a static library from the given proto_library dependencies, after applying an
options file.</p>
${ATTRIBUTE_DEFINITION}
<!-- #END_BLAZE_RULE -->*/
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