001/*
002 * Copyright 2010-2013 JetBrains s.r.o.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.jetbrains.jet.codegen.state;
018
019import org.jetbrains.annotations.NotNull;
020import org.jetbrains.annotations.Nullable;
021
022import java.io.File;
023import java.util.Collection;
024
025public interface Progress {
026    Progress DEAF = new Progress() {
027        @Override
028        public void reportOutput(@NotNull Collection<File> sourceFiles, @Nullable File outputFile) {
029        }
030    };
031
032    /**
033     * @param sourceFiles a (possibly empty) collection of source files {@code outputFile} was generated from
034     * @param outputFile an output file
035     */
036    void reportOutput(@NotNull Collection<File> sourceFiles, @Nullable File outputFile);
037}