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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.packages;
import static com.google.devtools.build.lib.packages.Type.BOOLEAN;
import static com.google.devtools.build.lib.packages.Type.DISTRIBUTIONS;
import static com.google.devtools.build.lib.packages.Type.FILESET_ENTRY_LIST;
import static com.google.devtools.build.lib.packages.Type.INTEGER;
import static com.google.devtools.build.lib.packages.Type.INTEGER_LIST;
import static com.google.devtools.build.lib.packages.Type.LABEL;
import static com.google.devtools.build.lib.packages.Type.LABEL_DICT_UNARY;
import static com.google.devtools.build.lib.packages.Type.LABEL_LIST;
import static com.google.devtools.build.lib.packages.Type.LABEL_LIST_DICT;
import static com.google.devtools.build.lib.packages.Type.LICENSE;
import static com.google.devtools.build.lib.packages.Type.NODEP_LABEL;
import static com.google.devtools.build.lib.packages.Type.NODEP_LABEL_LIST;
import static com.google.devtools.build.lib.packages.Type.OUTPUT;
import static com.google.devtools.build.lib.packages.Type.OUTPUT_LIST;
import static com.google.devtools.build.lib.packages.Type.STRING;
import static com.google.devtools.build.lib.packages.Type.STRING_DICT;
import static com.google.devtools.build.lib.packages.Type.STRING_DICT_UNARY;
import static com.google.devtools.build.lib.packages.Type.STRING_LIST;
import static com.google.devtools.build.lib.packages.Type.STRING_LIST_DICT;
import static com.google.devtools.build.lib.packages.Type.TRISTATE;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableMap;
import com.google.devtools.build.lib.query2.proto.proto2api.Build.Attribute.Discriminator;
import java.util.Map;
/**
* Shared code used in proto buffer output for rules and rule classes.
*/
public class ProtoUtils {
/**
* This map contains all attribute types that are recognized by the protocol
* output formatter.
*/
private static final Map<Type<?>, Discriminator> TYPE_MAP
= new ImmutableMap.Builder<Type<?>, Discriminator>()
.put(INTEGER, Discriminator.INTEGER)
.put(DISTRIBUTIONS, Discriminator.DISTRIBUTION_SET)
.put(LABEL, Discriminator.LABEL)
// NODEP_LABEL attributes are not really strings. This is implemented
// this way for the sake of backward compatibility.
.put(NODEP_LABEL, Discriminator.STRING)
.put(LABEL_LIST, Discriminator.LABEL_LIST)
.put(NODEP_LABEL_LIST, Discriminator.STRING_LIST)
.put(STRING, Discriminator.STRING)
.put(STRING_LIST, Discriminator.STRING_LIST)
.put(OUTPUT, Discriminator.OUTPUT)
.put(OUTPUT_LIST, Discriminator.OUTPUT_LIST)
.put(LICENSE, Discriminator.LICENSE)
.put(STRING_DICT, Discriminator.STRING_DICT)
.put(FILESET_ENTRY_LIST, Discriminator.FILESET_ENTRY_LIST)
.put(LABEL_DICT_UNARY, Discriminator.LABEL_DICT_UNARY)
.put(LABEL_LIST_DICT, Discriminator.LABEL_LIST_DICT)
.put(STRING_LIST_DICT, Discriminator.STRING_LIST_DICT)
.put(BOOLEAN, Discriminator.BOOLEAN)
.put(TRISTATE, Discriminator.TRISTATE)
.put(INTEGER_LIST, Discriminator.INTEGER_LIST)
.put(STRING_DICT_UNARY, Discriminator.STRING_DICT_UNARY)
.build();
/**
* Returns the appropriate Attribute.Discriminator value from an internal attribute type.
*/
public static Discriminator getDiscriminatorFromType(Type<?> type) {
Preconditions.checkArgument(TYPE_MAP.containsKey(type));
return TYPE_MAP.get(type);
}
}
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