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// Copyright 2016 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.syntax;
/** This class contains Bazel-specific functions to extend or interoperate with Skylark. */
public final class SkylarkUtils {
/** Bazel-specific information that we store in the Environment. */
private static class BazelInfo {
String toolsRepository;
}
private static final String BAZEL_INFO_KEY = "$bazel";
private static BazelInfo getInfo(Environment env) {
Object info = env.lookup(BAZEL_INFO_KEY);
if (info != null) {
return (BazelInfo) info;
}
BazelInfo result = new BazelInfo();
try {
env.update(BAZEL_INFO_KEY, result);
return result;
} catch (EvalException e) {
throw new AssertionError(e);
}
}
public static void setToolsRepository(Environment env, String toolsRepository) {
getInfo(env).toolsRepository = toolsRepository;
}
public static String getToolsRepository(Environment env) {
return getInfo(env).toolsRepository;
}
}
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