| /* |
| * 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.idea.blaze.base.scope; |
| |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * An output sink registered with a context. |
| * |
| * <p> |
| * |
| * <p>Register these via a ScopeExtension. |
| */ |
| public interface OutputSink<T extends Output> { |
| /** Whether to continue propagation */ |
| enum Propagation { |
| Continue, |
| Stop |
| } |
| |
| /** |
| * Called when an Output of the correct type goes through the scope. |
| * |
| * @return Whether to continue propagation of this input. |
| */ |
| Propagation onOutput(@NotNull T output); |
| } |