| // Copyright 2014 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.rules.objc; |
| |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.ImmutableList; |
| import java.util.Iterator; |
| |
| /** |
| * Base class for tiny container types that encapsulate an iterable. |
| */ |
| abstract class IterableWrapper<E> implements Iterable<E> { |
| private final Iterable<E> contents; |
| |
| IterableWrapper(Iterable<E> contents) { |
| this.contents = Preconditions.checkNotNull(contents); |
| } |
| |
| IterableWrapper(E... contents) { |
| this.contents = ImmutableList.copyOf(contents); |
| } |
| |
| @Override |
| public Iterator<E> iterator() { |
| return contents.iterator(); |
| } |
| } |