| // 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.skyframe; |
| |
| /** Filters out events which should not be stored during evaluation in {@link ParallelEvaluator}. */ |
| public interface EventFilter { |
| |
| /** |
| * Returns true if any {@linkplain com.google.devtools.build.lib.events.Reportable events} should |
| * be stored in skyframe nodes. Otherwise, optimizations may be made to avoid doing unnecessary |
| * work when evaluating node entries. |
| */ |
| boolean storeEvents(); |
| |
| /** |
| * Determines whether stored {@linkplain com.google.devtools.build.lib.events.Reportable events} |
| * should propagate from {@code depKey} to {@code primaryKey}. |
| * |
| * <p>Only relevant if {@link #storeEvents} returns {@code true}. |
| */ |
| boolean shouldPropagate(SkyKey depKey, SkyKey primaryKey); |
| |
| EventFilter FULL_STORAGE = |
| new EventFilter() { |
| @Override |
| public boolean storeEvents() { |
| return true; |
| } |
| |
| @Override |
| public boolean shouldPropagate(SkyKey depKey, SkyKey primaryKey) { |
| return true; |
| } |
| }; |
| |
| EventFilter NO_STORAGE = |
| new EventFilter() { |
| @Override |
| public boolean storeEvents() { |
| return false; |
| } |
| |
| @Override |
| public boolean shouldPropagate(SkyKey depKey, SkyKey primaryKey) { |
| throw new UnsupportedOperationException(); |
| } |
| }; |
| } |