1 // Protocol Buffers - Google's data interchange format
2 // Copyright 2013 Google Inc.  All rights reserved.
3 // https://developers.google.com/protocol-buffers/
4 //
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8 //
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30 
31 package com.google.protobuf.nano;
32 
33 import java.io.IOException;
34 import java.util.Arrays;
35 
36 /**
37  * Stores unknown fields. These might be extensions or fields that the generated
38  * API doesn't know about yet.
39  *
40  * @author bduff@google.com (Brian Duff)
41  */
42 final class UnknownFieldData {
43 
44     final int tag;
45     /**
46      * Important: this should be treated as immutable, even though it's possible
47      * to change the array values.
48      */
49     final byte[] bytes;
50 
UnknownFieldData(int tag, byte[] bytes)51     UnknownFieldData(int tag, byte[] bytes) {
52         this.tag = tag;
53         this.bytes = bytes;
54     }
55 
computeSerializedSize()56     int computeSerializedSize() {
57         int size = 0;
58         size += CodedOutputByteBufferNano.computeRawVarint32Size(tag);
59         size += bytes.length;
60         return size;
61     }
62 
writeTo(CodedOutputByteBufferNano output)63     void writeTo(CodedOutputByteBufferNano output) throws IOException {
64         output.writeRawVarint32(tag);
65         output.writeRawBytes(bytes);
66     }
67 
68     @Override
equals(Object o)69     public boolean equals(Object o) {
70         if (o == this) {
71             return true;
72         }
73         if (!(o instanceof UnknownFieldData)) {
74             return false;
75         }
76 
77         UnknownFieldData other = (UnknownFieldData) o;
78         return tag == other.tag && Arrays.equals(bytes, other.bytes);
79     }
80 
81     @Override
hashCode()82     public int hashCode() {
83         int result = 17;
84         result = 31 * result + tag;
85         result = 31 * result + Arrays.hashCode(bytes);
86         return result;
87     }
88 }
89