content: // Protocol Buffers - Google's data interchange format
  // Copyright 2008 Google Inc.  All rights reserved.
  // https://developers.google.com/protocol-buffers/
  //
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are
  // met:
  //
  //     * Redistributions of source code must retain the above copyright
  // notice, this list of conditions and the following disclaimer.
  //     * Redistributions in binary form must reproduce the above
  // copyright notice, this list of conditions and the following disclaimer
  // in the documentation and/or other materials provided with the
  // distribution.
  //     * Neither the name of Google Inc. nor the names of its
  // contributors may be used to endorse or promote products derived from
  // this software without specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  package com.google.protobuf;
  
  import java.io.IOException;
  
  class UnknownFieldSetSchema extends UnknownFieldSchema<UnknownFieldSet, UnknownFieldSet.Builder> {
  
    private final boolean proto3;
  
    public UnknownFieldSetSchema(boolean proto3) {
      this.proto3 = proto3;
    }
  
    @Override
    boolean shouldDiscardUnknownFields(Reader reader) {
      return reader.shouldDiscardUnknownFields();
    }
  
    @Override
    UnknownFieldSet.Builder newBuilder() {
      return UnknownFieldSet.newBuilder();
    }
  
    @Override
    void addVarint(UnknownFieldSet.Builder fields, int number, long value) {
      fields.mergeField(number, UnknownFieldSet.Field.newBuilder().addVarint(value).build());
    }
  
    @Override
    void addFixed32(UnknownFieldSet.Builder fields, int number, int value) {
      fields.mergeField(number, UnknownFieldSet.Field.newBuilder().addFixed32(value).build());
    }
  
    @Override
    void addFixed64(UnknownFieldSet.Builder fields, int number, long value) {
      fields.mergeField(number, UnknownFieldSet.Field.newBuilder().addFixed64(value).build());
    }
  
    @Override
    void addLengthDelimited(UnknownFieldSet.Builder fields, int number, ByteString value) {
      fields.mergeField(number, UnknownFieldSet.Field.newBuilder().addLengthDelimited(value).build());
    }
  
    @Override
    void addGroup(UnknownFieldSet.Builder fields, int number, UnknownFieldSet subFieldSet) {
      fields.mergeField(number, UnknownFieldSet.Field.newBuilder().addGroup(subFieldSet).build());
    }
  
    @Override
    UnknownFieldSet toImmutable(UnknownFieldSet.Builder fields) {
      return fields.build();
    }
  
    @Override
    void writeTo(UnknownFieldSet message, Writer writer) throws IOException {
      message.writeTo(writer);
    }
  
    @Override
    void writeAsMessageSetTo(UnknownFieldSet message, Writer writer) throws IOException {
      message.writeAsMessageSetTo(writer);
    }
  
    @Override
    UnknownFieldSet getFromMessage(Object message) {
      return ((GeneratedMessageV3) message).unknownFields;
    }
  
    @Override
    void setToMessage(Object message, UnknownFieldSet fields) {
      ((GeneratedMessageV3) message).unknownFields = fields;
    }
  
    @Override
    UnknownFieldSet.Builder getBuilderFromMessage(Object message) {
      return ((GeneratedMessageV3) message).unknownFields.toBuilder();
    }
  
    @Override
    void setBuilderToMessage(Object message, UnknownFieldSet.Builder builder) {
      ((GeneratedMessageV3) message).unknownFields = builder.build();
    }
  
    @Override
    void makeImmutable(Object message) {
      // Already immutable.
    }
  
    @Override
    UnknownFieldSet merge(UnknownFieldSet message, UnknownFieldSet other) {
      return message.toBuilder().mergeFrom(other).build();
    }
  
    @Override
    int getSerializedSize(UnknownFieldSet message) {
      return message.getSerializedSize();
    }
  
    @Override
    int getSerializedSizeAsMessageSet(UnknownFieldSet unknowns) {
      return unknowns.getSerializedSizeAsMessageSet();
    }
  }
  