| // Copyright (c) 2021, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| package com.android.tools.r8.utils; |
| |
| import com.android.tools.r8.DiagnosticsHandler; |
| import com.android.tools.r8.StringConsumer; |
| import com.android.tools.r8.StringConsumer.ForwardingConsumer; |
| |
| /* Joining String Consumer to join strings that it accepts. */ |
| public class JoiningStringConsumer extends ForwardingConsumer { |
| |
| private final String separator; |
| private final StringConsumer consumer; |
| private final StringBuilder builder = new StringBuilder(); |
| |
| /** |
| * @param consumer Consumer to forward to the joined input to. If null, nothing will be forwarded. |
| */ |
| public JoiningStringConsumer(StringConsumer consumer, String separator) { |
| super(consumer); |
| this.consumer = consumer; |
| this.separator = separator; |
| } |
| |
| @Override |
| public void accept(String string, DiagnosticsHandler handler) { |
| if (builder.length() > 0) { |
| builder.append(separator); |
| } |
| builder.append(string); |
| } |
| |
| @Override |
| public void finished(DiagnosticsHandler handler) { |
| super.accept(builder.toString(), handler); |
| super.finished(handler); |
| } |
| |
| public StringConsumer getConsumer() { |
| return consumer; |
| } |
| } |