| /* |
| * Copyright 2015 Google 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.google.googlejavaformat; |
| |
| import com.google.common.base.MoreObjects; |
| import com.google.common.collect.Range; |
| import com.google.googlejavaformat.OpsBuilder.BlankLineWanted; |
| import java.util.Optional; |
| |
| /** An output from the formatter. */ |
| public abstract class Output extends InputOutput { |
| /** Unique identifier for a break. */ |
| public static final class BreakTag { |
| |
| Optional<Boolean> taken = Optional.empty(); |
| |
| public void recordBroken(boolean broken) { |
| // TODO(cushon): enforce invariants. |
| // Currently we rely on setting Breaks multiple times, e.g. when deciding |
| // whether a Level should be flowed. Using separate data structures |
| // instead of mutation or adding an explicit 'reset' step would allow |
| // a useful invariant to be enforced here. |
| taken = Optional.of(broken); |
| } |
| |
| public boolean wasBreakTaken() { |
| return taken.orElse(false); |
| } |
| } |
| |
| /** |
| * Indent by outputting {@code indent} spaces. |
| * |
| * @param indent the current indent |
| */ |
| public abstract void indent(int indent); |
| |
| /** |
| * Output a string. |
| * |
| * @param text the string |
| * @param range the {@link Range} corresponding to the string |
| */ |
| public abstract void append(String text, Range<Integer> range); |
| |
| /** |
| * A blank line is or is not wanted here. |
| * |
| * @param k the {@link Input.Tok} index |
| * @param wanted whether a blank line is wanted here |
| */ |
| public abstract void blankLine(int k, BlankLineWanted wanted); |
| |
| /** Marks a region that can be partially formatted. */ |
| public abstract void markForPartialFormat(Input.Token start, Input.Token end); |
| |
| /** |
| * Get the {@link CommentsHelper}. |
| * |
| * @return the {@link CommentsHelper} |
| */ |
| public abstract CommentsHelper getCommentsHelper(); |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(this).add("super", super.toString()).toString(); |
| } |
| } |