| // 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.flags; |
| package com.google.devtools.common.options; |
| |
| import com.google.common.collect.ImmutableSet; |
| |
| /** Cache mapping a command to the names of all commands it inherits from, including itself. */ |
| @FunctionalInterface |
| public interface CommandNameCache { |
| /** Class that exists only to expose a static instance variable that can be set and retrieved. */ |
| class CommandNameCacheInstance implements CommandNameCache { |
| public static final CommandNameCacheInstance INSTANCE = new CommandNameCacheInstance(); |
| private CommandNameCache delegate; |
| |
| private CommandNameCacheInstance() {} |
| |
| /** Only for use by {@code BlazeRuntime}. */ |
| public void setCommandNameCache(CommandNameCache cache) { |
| // Can be set multiple times in tests. |
| this.delegate = cache; |
| } |
| |
| @Override |
| public ImmutableSet<String> get(String commandName) { |
| return delegate.get(commandName); |
| } |
| } |
| |
| /** Returns the names of all commands {@code commandName} inherits from, including itself. */ |
| ImmutableSet<String> get(String commandName); |
| } |