| /* |
| * Copyright 2013-present Facebook, Inc. |
| * |
| * 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.facebook.buck.rules.coercer; |
| |
| import com.google.common.base.Optional; |
| |
| /** |
| * Superclass of coercers for non-collection/map types. |
| */ |
| public abstract class LeafTypeCoercer<T> implements TypeCoercer<T> { |
| |
| @Override |
| public boolean hasElementClass(Class<?>... types) { |
| for (Class<?> type : types) { |
| if (type.isAssignableFrom(getOutputClass())) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public void traverse(Object object, Traversal traversal) { |
| traversal.traverse(object); |
| } |
| |
| @Override |
| public Optional<T> getOptionalValue() { |
| return Optional.absent(); |
| } |
| } |