translator: serialization test

2016-08-15 18:45:53 +03:00
parent f817fdab69
commit ee657d19a5
2 changed files with 893 additions and 0 deletions
@@ -0,0 +1 @@
+serialization_test1_Int(1442) == 1442
@@ -0,0 +1,892 @@
+
+class KotlinInputStream(val buffer: ByteArray) {
+    var pos = 0
+
+    fun read(): Byte {
+        pos += 1
+        return buffer[pos - 1]
+    }
+
+    fun isAtEnd(): Boolean {
+        return pos >= buffer.size
+    }
+}
+
+class KotlinOutputStream(val buffer: ByteArray) {
+    var pos = 0
+
+    fun write (data: ByteArray) {
+        write(data, 0, data.size)
+    }
+
+    fun write (data: ByteArray, begin: Int, size: Int) {
+        var i = begin
+        while (i < begin + size) {
+            buffer[pos] = data[i]
+            pos += 1
+            i++
+        }
+    }
+}
+
+object WireFormat {
+    // couple of constants for magic numbers
+    val TAG_TYPE_BITS: Int = 3
+    val TAG_TYPE_MASK: Int = (1 shl TAG_TYPE_BITS) - 1
+    val VARINT_INFO_BITS_COUNT: Int = 7
+    val VARINT_INFO_BITS_MASK: Int = 0b01111111    // mask for separating lowest 7 bits, where actual information stored
+    val VARINT_UTIL_BIT_MASK: Int = 0b10000000     // mask for separating highest bit, that indicates next byte presence
+    val FIXED_32_BYTE_SIZE: Int = 4
+    val FIXED_64_BYTE_SIZE: Int = 8
+
+    fun getTagWireType(tag: Int): WireType {
+        return WireType.from((tag and TAG_TYPE_MASK).toByte())
+    }
+
+    fun getTagFieldNumber(tag: Int): Int {
+        return tag ushr TAG_TYPE_BITS
+    }
+
+    // TODO: refactor casts into function overloading as soon as translator will support it
+    fun getTagSize(fieldNumber: Int, wireType: WireType): Int {
+        return getVarint32Size((fieldNumber shl 3) or wireType.id)
+    }
+
+    fun getVarint32Size(value: Int): Int {
+        var curValue = value
+        var size = 0
+        do {
+            size += 1
+            curValue = curValue ushr VARINT_INFO_BITS_COUNT
+        } while (curValue != 0)
+        return size
+    }
+
+    fun getVarint64Size(value: Long): Int {
+        var curValue = value
+        var size = 0
+        do {
+            size += 1
+            curValue = curValue ushr VARINT_INFO_BITS_COUNT
+        }while (curValue != 0L)
+        return size
+    }
+
+    fun getZigZag32Size(value: Int): Int {
+        return getVarint32Size((value shl 1) xor (value shr 31))
+    }
+
+    fun getZigZag64Size(value: Long): Int {
+        return getVarint64Size((value shl 1) xor (value shr 63))
+    }
+
+    fun getInt32Size(fieldNumber: Int, value: Int): Int {
+        return getTagSize(fieldNumber, WireType.VARINT) + getInt32SizeNoTag(value)
+    }
+
+    fun getInt32SizeNoTag(value: Int): Int {
+        if (value < 0) {
+            return getVarint64Size(value.toLong())
+        }
+        return getVarint32Size(value)
+    }
+
+    fun getUInt32Size(fieldNumber: Int, value: Int): Int {
+        return getTagSize(fieldNumber, WireType.VARINT) + getUInt32SizeNoTag(value)
+    }
+
+    fun getUInt32SizeNoTag(value: Int): Int {
+        return getVarint32Size(value)
+    }
+
+    fun getInt64Size(fieldNumber: Int, value: Long): Int {
+        return getTagSize(fieldNumber, WireType.VARINT) + getUInt64SizeNoTag(value)
+    }
+
+    fun getInt64SizeNoTag(value: Long): Int {
+        return getVarint64Size(value)
+    }
+
+    fun getUInt64Size(fieldNumber: Int, value: Long): Int {
+        return getInt64Size(fieldNumber, value)
+    }
+
+    fun getUInt64SizeNoTag(value: Long): Int {
+        return getVarint64Size(value)
+    }
+
+    fun getBoolSize(fieldNumber: Int, value: Boolean): Int {
+        val intValue = if (value) 1 else 0
+        return getInt32Size(fieldNumber, intValue)
+    }
+
+    fun getBoolSizeNoTag(value: Boolean): Int {
+        val intValue = if (value) 1 else 0
+        return getInt32SizeNoTag(intValue)
+    }
+
+    fun getEnumSize(fieldNumber: Int, value: Int): Int {
+        return getInt32Size(fieldNumber, value)
+    }
+
+    fun getEnumSizeNoTag(value: Int): Int {
+        return getInt32SizeNoTag(value)
+    }
+
+    fun getSInt32Size(fieldNumber: Int, value: Int): Int {
+        return getTagSize(fieldNumber, WireType.VARINT) + getZigZag32Size(value)
+    }
+
+    fun getSInt32SizeNoTag(value: Int): Int {
+        return getZigZag32Size(value)
+    }
+
+    fun getSInt64Size(fieldNumber: Int, value: Long): Int {
+        return getTagSize(fieldNumber, WireType.VARINT) + getZigZag64Size(value)
+    }
+
+    fun getSInt64SizeNoTag(value: Long): Int {
+        return getZigZag64Size(value)
+    }
+
+    fun getFixed32Size(fieldNumber: Int, value: Int): Int {
+        return getTagSize(fieldNumber, WireType.FIX_32) + FIXED_32_BYTE_SIZE
+    }
+
+    fun getFixed32SizeNoTag(value: Int): Int {
+        return FIXED_32_BYTE_SIZE
+    }
+
+    fun getFixed64Size(fieldNumber: Int, value: Long): Int {
+        return getTagSize(fieldNumber, WireType.FIX_64) + FIXED_64_BYTE_SIZE
+    }
+
+    fun getFixed64SizeNoTag(value: Long): Int  {
+        return FIXED_64_BYTE_SIZE
+    }
+
+    fun getDoubleSize(fieldNumber: Int, value: Double): Int {
+        return getTagSize(fieldNumber, WireType.FIX_64) + FIXED_64_BYTE_SIZE
+    }
+
+    fun getDoubleSizeNoTag(value: Double): Int {
+        return FIXED_64_BYTE_SIZE
+    }
+
+    fun getFloatSize(fieldNumber: Int, value: Float): Int {
+        return getTagSize(fieldNumber, WireType.FIX_32) + FIXED_32_BYTE_SIZE
+    }
+
+    fun getFloatSizeNoTag(value: Float): Int {
+        return FIXED_32_BYTE_SIZE
+    }
+
+    fun getBytesSize(fieldNumber: Int, value: ByteArray): Int {
+        if (value.size == 0)
+            return 0
+        var size = 0
+        return value.size + getTagSize(fieldNumber, WireType.LENGTH_DELIMITED) + getVarint32Size(value.size)
+    }
+
+    fun getBytesSizeNoTag(value: ByteArray): Int {
+        return value.size + getVarint32Size(value.size)
+    }
+}
+
+class CodedInputStream(val buffer: ByteArray) {
+    val inputStream: KotlinInputStream
+    init {
+        inputStream = KotlinInputStream(buffer)  // TODO: Java's realization uses hand-written buffers. Why?
+    }
+
+    fun readInt32(expectedFieldNumber: Int): Int {
+        val tag = readTag(expectedFieldNumber, WireType.VARINT)
+        val actualFieldNumber = WireFormat.getTagFieldNumber(tag)
+        val actualWireType = WireFormat.getTagWireType(tag)
+        checkFieldCorrectness(expectedFieldNumber, actualFieldNumber, WireType.VARINT, actualWireType)
+        return readInt32NoTag()
+    }
+
+    // Note that unsigned integer types are stored as their signed counterparts with top bit
+    // simply stored in the sign bit - similar to Java's protobuf implementation. Hence, all
+    // methods reading unsigned ints simply redirect call to corresponding signed-reading method
+    fun readUInt32(expectedFieldNumber: Int): Int {
+        val tag = readTag(expectedFieldNumber, WireType.VARINT)
+        return readUInt32NoTag()
+    }
+
+    fun readUInt32NoTag(): Int {
+        return readInt32NoTag()
+    }
+
+    fun readInt64(expectedFieldNumber: Int): Long {
+        val tag = readTag(expectedFieldNumber, WireType.VARINT)
+        return readInt64NoTag()
+    }
+
+    // See note on unsigned integers implementations above
+    fun readUInt64(expectedFieldNumber: Int): Long {
+        val tag = readTag(expectedFieldNumber, WireType.VARINT)
+        return readUInt64NoTag()
+    }
+
+    fun readUInt64NoTag(): Long {
+        return readInt64NoTag()
+    }
+
+    fun readBool(expectedFieldNumber: Int): Boolean {
+        val tag = readTag(expectedFieldNumber, WireType.VARINT)
+        return readBoolNoTag()
+    }
+
+    fun readBoolNoTag(): Boolean {
+        val readValue = readInt32NoTag()
+        val boolValue = when (readValue) {
+            0 -> false
+            1 -> true
+            else -> false
+        }
+        return boolValue
+    }
+
+    // Reading enums is like reading one int32 number. Caller is responsible for converting this ordinal to enum-object
+    fun readEnum(expectedFieldNumber: Int): Int {
+        val tag = readTag(expectedFieldNumber, WireType.VARINT)
+        return readEnumNoTag()
+    }
+
+    fun readEnumNoTag(): Int {
+        return readUInt32NoTag()
+    }
+
+    fun readSInt32(expectedFieldNumber: Int): Int {
+        val tag = readTag(expectedFieldNumber, WireType.VARINT)
+        return readSInt32NoTag()
+    }
+
+    fun readSInt32NoTag(): Int {
+        return readZigZag32NoTag()
+    }
+
+    fun readSInt64(expectedFieldNumber: Int): Long {
+        val tag = readTag(expectedFieldNumber, WireType.VARINT)
+        return readSInt64NoTag()
+    }
+
+    fun readSInt64NoTag(): Long {
+        return readZigZag64NoTag()
+    }
+    fun readBytes(expectedFieldNumber: Int): ByteArray {
+        val tag = readTag(expectedFieldNumber, WireType.LENGTH_DELIMITED)
+        return readBytesNoTag()
+    }
+
+    fun readBytesNoTag(): ByteArray {
+        val length = readInt32NoTag()
+        return readRawBytes(length)
+    }
+
+    /** ============ Utility methods ==================
+     *  They are left non-private for cases when one wants to implement her/his own protocol format.
+     *  Then she/he can re-use low-level methods for operating with raw values, that are not annotated with Protobuf tags.
+     */
+
+    fun checkFieldCorrectness(
+            expectedFieldNumber: Int,
+            actualFieldNumber: Int,
+            expectedWireType: WireType,
+            actualWireType: WireType) {
+        if (expectedFieldNumber != actualFieldNumber) {
+            return
+        }
+
+        if (expectedWireType.id != actualWireType.id) {
+            return
+        }
+    }
+
+    fun readRawBytes(count: Int): ByteArray {
+        val ba = ByteArray(count)
+        var i = 0
+        while (i < count) {
+            ba[i] = inputStream.read().toByte()
+            i++
+        }
+        return ba
+    }
+
+    // reads tag. Note that it returns 0 for the end of message!
+    fun readTag(expectedFieldNumber: Int, expectedWireType: WireType): Int {
+        if (isAtEnd()) {
+            return 0        // we can safely return 0 as sign of end of message, because 0-tags are illegal
+        }
+        val tag = readInt32NoTag()
+        if (tag == 0) {     // if we somehow had read 0-tag, then message is corrupted
+            return 0
+        }
+
+        val actualFieldNumber = WireFormat.getTagFieldNumber(tag)
+        val actualWireType = WireFormat.getTagWireType(tag)
+        checkFieldCorrectness(expectedFieldNumber, actualFieldNumber, expectedWireType, actualWireType)
+        return tag
+    }
+
+    // reads varint not larger than 32-bit integer according to protobuf varint-encoding
+    fun readInt32NoTag(): Int {
+        var done: Boolean = false
+        var result: Long = 0
+        var step: Int = 0
+        while (!done) {
+            val byte: Int = inputStream.read().toInt()
+            result = result or
+                    (
+                            (byte and WireFormat.VARINT_INFO_BITS_MASK).toLong()
+                                    shl
+                                    (WireFormat.VARINT_INFO_BITS_COUNT * step)
+                            ).toLong()
+            step++
+            if ((byte and WireFormat.VARINT_UTIL_BIT_MASK) == 0) {
+                done = true
+            }
+        }
+        return result.toInt()
+    }
+
+    // reads varint not larger than 64-bit integer according to protobuf varint-encoding
+    fun readInt64NoTag(): Long {
+        var done: Boolean = false
+        var result: Long = 0
+        var step: Int = 0
+        while (!done) {
+            val byte: Int = inputStream.read().toInt()
+            result = result or
+                    (
+                            (byte and WireFormat.VARINT_INFO_BITS_MASK).toLong()
+                                    shl
+                                    (WireFormat.VARINT_INFO_BITS_COUNT * step)
+                            )
+            step++
+            if ((byte and WireFormat.VARINT_UTIL_BIT_MASK) == 0 /* || byte == -1 ???? */) {
+                done = true
+            }
+        }
+        return result
+    }
+
+    // reads zig-zag encoded integer not larger than 32-bit long
+    fun readZigZag32NoTag(): Int {
+        val value = readInt32NoTag()
+        return (value ushr 1) xor (-(value and 1))   // bit magic for decoding zig-zag number
+    }
+
+    // reads zig-zag encoded integer not larger than 64-bit long
+    fun readZigZag64NoTag(): Long {
+        val value = readInt64NoTag()
+        return (value ushr 1) xor (-(value and 1L))  // bit magic for decoding zig-zag number
+    }
+
+    // checks if at least one more byte can be read from underlying input stream
+    fun isAtEnd(): Boolean {
+        return inputStream.isAtEnd()
+    }
+}
+
+class CodedOutputStream(val buffer: ByteArray) {
+    val output = KotlinOutputStream(buffer)
+
+    fun toByteArray(): ByteArray {
+        return buffer
+    }
+
+    fun writeTag(fieldNumber: Int, type: WireType) {
+        val tag = (fieldNumber shl 3) or type.id
+        writeRawVarint32(tag)
+    }
+
+    fun writeInt32(fieldNumber: Int, value: Int) {
+        writeTag(fieldNumber, WireType.VARINT)
+        writeInt32NoTag(value)
+    }
+
+    fun writeInt32NoTag(value: Int) {
+        if (value < 0) {    // sign-extend negative values
+            writeRawVarint64(value.toLong())
+            return
+        }
+        writeRawVarint32(value)
+    }
+
+    // Note that unsigned integer types are stored as their signed counterparts with top bit
+    // simply stored in the sign bit - similar to Java's protobuf implementation. Hence, all
+    // methods, writing unsigned ints simply redirect call to corresponding signed-writing method
+    fun writeUInt32(fieldNumber: Int, value: Int) {
+        writeTag(fieldNumber, WireType.VARINT)
+        writeUInt32NoTag(value)
+    }
+
+    fun writeUInt32NoTag(value: Int) {
+        writeRawVarint32(value)
+    }
+
+    fun writeInt64(fieldNumber: Int, value: Long) {
+        writeTag(fieldNumber, WireType.VARINT)
+        writeInt64NoTag(value)
+    }
+
+    fun writeInt64NoTag(value: Long) {
+        writeRawVarint64(value)
+    }
+
+    // See notes on unsigned integers implementation above
+    fun writeUInt64(fieldNumber: Int, value: Long) {
+        writeTag(fieldNumber, WireType.VARINT)
+        writeUInt64NoTag(value)
+    }
+
+    fun writeUInt64NoTag(value: Long) {
+        writeRawVarint64(value)
+    }
+
+    fun writeBool(fieldNumber: Int, value: Boolean) {
+        writeTag(fieldNumber, WireType.VARINT)
+        writeBoolNoTag(value)
+    }
+
+    fun writeBoolNoTag(value: Boolean) {
+        writeRawVarint32(if (value) 1 else 0)
+    }
+
+    // Writing enums is like writing one int32 number. Caller is responsible for converting enum-object to ordinal
+    fun writeEnum(fieldNumber: Int, value: Int) {
+        writeTag(fieldNumber, WireType.VARINT)
+        writeEnumNoTag(value)
+    }
+
+    fun writeEnumNoTag(value: Int) {
+        writeRawVarint32(value)
+    }
+
+    fun writeSInt32(fieldNumber: Int, value: Int) {
+        writeTag(fieldNumber, WireType.VARINT)
+        writeSInt32NoTag(value)
+    }
+
+    fun writeSInt32NoTag(value: Int) {
+        writeUInt32NoTag((value shl 1) xor (value shr 31))
+    }
+
+    fun writeSInt64(fieldNumber: Int, value: Long) {
+        writeTag(fieldNumber, WireType.VARINT)
+        writeSInt64NoTag(value)
+    }
+
+    fun writeSInt64NoTag(value: Long) {
+        writeUInt64NoTag((value shl 1) xor (value shr 63))
+    }
+
+    fun writeBytes(fieldNumber: Int, value: ByteArray) {
+        if (value.size == 0) {
+            return
+        }
+        writeTag(fieldNumber, WireType.LENGTH_DELIMITED)
+        writeBytesNoTag(value)
+    }
+
+    fun writeBytesNoTag(value: ByteArray) {
+        writeRawVarint32(value.size)
+        output.write(value)
+    }
+
+    /** ============ Utility methods ==================
+     *  They are left non-private for cases when one wants to implement her/his own protocol format.
+     *  Then she/he can re-use low-level methods for operating with raw values, that are not annotated with Protobuf tags.
+     */
+
+    fun writeRawVarint32(value: Int) {
+        var curValue: Int = value
+
+        // we have at most 32 information bits. With overhead of 1 bit per 7 bits we need at most 5 bytes for encoding
+        val res = ByteArray(5)
+
+        var resSize = 0
+        do {
+            // encode current 7 bits
+            var curByte = (curValue and WireFormat.VARINT_INFO_BITS_MASK)
+
+            // discard encoded bits. Note that unsigned shift is needed for cases with negative numbers
+            curValue = curValue ushr WireFormat.VARINT_INFO_BITS_COUNT
+
+            // check if there will be next byte in encoding and set util bit if needed
+            if (curValue != 0) {
+                curByte = curByte or WireFormat.VARINT_UTIL_BIT_MASK
+            }
+
+            res[resSize] = curByte.toByte()
+            resSize++
+        } while (curValue != 0)
+        output.write(res, 0, resSize)
+    }
+
+    fun writeRawVarint64(value: Long) {
+        var curValue: Long = value
+
+        // we have at most 64 information bits. With overhead of 1 bit per 7 bits we need at most 10 bytes for encoding
+        val res = ByteArray(10)
+
+        var resSize = 0
+        while(curValue != 0L) {
+            // encode current 7 bits
+            var curByte = (curValue and WireFormat.VARINT_INFO_BITS_MASK.toLong())
+
+            // discard encoded bits. Note that unsigned shift is needed for cases with negative numbers
+            curValue = curValue ushr WireFormat.VARINT_INFO_BITS_COUNT
+
+            // check if there will be next byte and set util bit if needed
+            if (curValue != 0L) {
+                curByte = curByte or WireFormat.VARINT_UTIL_BIT_MASK.toLong()
+            }
+
+            res[resSize] = curByte.toByte()
+            resSize++
+        }
+        output.write(res, 0, resSize)
+    }
+
+
+}
+
+enum class WireType(val id: Int) {
+    VARINT(0),              // int32, int64, uint32, uint64, sint32, sint64, bool, enum
+    FIX_64(1),              // fixed64, sfixed64, double
+    LENGTH_DELIMITED(2),    // string, bytes, embedded messages, packed repeated fields
+    START_GROUP(3),         // groups (deprecated)
+    END_GROUP(4),           // groups (deprecated)
+    FIX_32(5),              // fixed32, sfixed32, float
+    UNDEFINED(6);           // indicates error when parsing from Int
+
+    companion object {
+        fun from (value: Byte): WireType {
+            return when (value) {
+                0.toByte() -> VARINT
+                1.toByte() -> FIX_64
+                2.toByte() -> LENGTH_DELIMITED
+                3.toByte() -> START_GROUP
+                4.toByte() -> END_GROUP
+                5.toByte() -> FIX_32
+                else -> UNDEFINED
+            }
+        }
+    }
+}
+
+class DirectionRequest private constructor (var command: DirectionRequest.Command, var sid: Int) {
+    //========== Properties ===========
+    //enum command = 1
+
+    //int32 sid = 2
+
+    var errorCode: Int = 0
+
+    //========== Nested enums declarations ===========
+    enum class Command(val ord: Int) {
+        stop (0),
+        forward (1),
+        backward (2),
+        left (3),
+        right (4),
+        Unexpected(5);
+
+        companion object {
+            fun fromIntToCommand (ord: Int): Command {
+                return when (ord) {
+                    0 -> Command.stop
+                    1 -> Command.forward
+                    2 -> Command.backward
+                    3 -> Command.left
+                    4 -> Command.right
+                    else -> Unexpected
+                }
+            }
+        }
+    }
+    //========== Serialization methods ===========
+    fun writeTo (output: CodedOutputStream) {
+        //enum command = 1
+        if (command != DirectionRequest.Command.fromIntToCommand(0)) {
+            output.writeEnum (1, command.ord)
+        }
+
+        //int32 sid = 2
+        if (sid != 0) {
+            output.writeInt32 (2, sid)
+        }
+
+    }
+
+    fun mergeWith (other: DirectionRequest) {
+        command = other.command
+        sid = other.sid
+    }
+
+    fun mergeFromWithSize (input: CodedInputStream, expectedSize: Int) {
+        val builder = DirectionRequest.BuilderDirectionRequest(DirectionRequest.Command.fromIntToCommand(0), 0)
+        mergeWith(builder.parseFromWithSize(input, expectedSize).build())
+    }
+
+    fun mergeFrom (input: CodedInputStream) {
+        val builder = DirectionRequest.BuilderDirectionRequest(DirectionRequest.Command.fromIntToCommand(0), 0)
+        mergeWith(builder.parseFrom(input).build())
+    }
+
+    //========== Size-related methods ===========
+    fun getSize(fieldNumber: Int): Int {
+        var size = 0
+        if (command != DirectionRequest.Command.fromIntToCommand(0)) {
+            size += WireFormat.getEnumSize(1, command.ord)
+        }
+        if (sid != 0) {
+            size += WireFormat.getInt32Size(2, sid)
+        }
+        size += WireFormat.getVarint32Size(size) + WireFormat.getTagSize(fieldNumber, WireType.LENGTH_DELIMITED)
+        return size
+    }
+
+    fun getSizeNoTag(): Int {
+        var size = 0
+        if (command != DirectionRequest.Command.fromIntToCommand(0)) {
+            size += WireFormat.getEnumSize(1, command.ord)
+        }
+        if (sid != 0) {
+            size += WireFormat.getInt32Size(2, sid)
+        }
+        return size
+    }
+
+    //========== Builder ===========
+    class BuilderDirectionRequest constructor (var command: DirectionRequest.Command, var sid: Int) {
+        //========== Properties ===========
+        //enum command = 1
+        fun setCommand(value: DirectionRequest.Command): DirectionRequest.BuilderDirectionRequest {
+            command = value
+            return this
+        }
+
+        //int32 sid = 2
+        fun setSid(value: Int): DirectionRequest.BuilderDirectionRequest {
+            sid = value
+            return this
+        }
+
+        var errorCode: Int = 0
+
+        //========== Serialization methods ===========
+        fun writeTo (output: CodedOutputStream) {
+            //enum command = 1
+            if (command != DirectionRequest.Command.fromIntToCommand(0)) {
+                output.writeEnum (1, command.ord)
+            }
+
+            //int32 sid = 2
+            if (sid != 0) {
+                output.writeInt32 (2, sid)
+            }
+
+        }
+
+        //========== Mutating methods ===========
+        fun build(): DirectionRequest {
+            return DirectionRequest(command, sid)
+        }
+
+        fun parseFieldFrom(input: CodedInputStream): Boolean {
+            if (input.isAtEnd()) { return false }
+            val tag = input.readInt32NoTag()
+            if (tag == 0) { return false }
+            val fieldNumber = WireFormat.getTagFieldNumber(tag)
+            val wireType = WireFormat.getTagWireType(tag)
+            when(fieldNumber) {
+                1 -> {
+                    if (wireType != WireType.VARINT) { errorCode = 1; return false }
+                    command = DirectionRequest.Command.fromIntToCommand(input.readEnumNoTag())
+                }
+                2 -> {
+                    if (wireType != WireType.VARINT) { errorCode = 1; return false }
+                    sid = input.readInt32NoTag()
+                }
+            }
+            return true}
+
+        fun parseFromWithSize(input: CodedInputStream, expectedSize: Int): DirectionRequest.BuilderDirectionRequest {
+            while(getSizeNoTag() < expectedSize) {
+                parseFieldFrom(input)
+            }
+            if (getSizeNoTag() > expectedSize) { errorCode = 2 }
+            return this
+        }
+
+        fun parseFrom(input: CodedInputStream): DirectionRequest.BuilderDirectionRequest {
+            while(parseFieldFrom(input)) {}
+            return this
+        }
+
+        //========== Size-related methods ===========
+        fun getSize(fieldNumber: Int): Int {
+            var size = 0
+            if (command != DirectionRequest.Command.fromIntToCommand(0)) {
+                size += WireFormat.getEnumSize(1, command.ord)
+            }
+            if (sid != 0) {
+                size += WireFormat.getInt32Size(2, sid)
+            }
+            size += WireFormat.getVarint32Size(size) + WireFormat.getTagSize(fieldNumber, WireType.LENGTH_DELIMITED)
+            return size
+        }
+
+        fun getSizeNoTag(): Int {
+            var size = 0
+            if (command != DirectionRequest.Command.fromIntToCommand(0)) {
+                size += WireFormat.getEnumSize(1, command.ord)
+            }
+            if (sid != 0) {
+                size += WireFormat.getInt32Size(2, sid)
+            }
+            return size
+        }
+
+    }
+
+}
+
+class DirectionResponse private constructor (var code: Int) {
+    //========== Properties ===========
+    //int32 code = 1
+
+    var errorCode: Int = 0
+
+    //========== Serialization methods ===========
+    fun writeTo (output: CodedOutputStream) {
+        //int32 code = 1
+        if (code != 0) {
+            output.writeInt32 (1, code)
+        }
+
+    }
+
+    fun mergeWith (other: DirectionResponse) {
+        code = other.code
+    }
+
+    fun mergeFromWithSize (input: CodedInputStream, expectedSize: Int) {
+        val builder = DirectionResponse.BuilderDirectionResponse(0)
+        mergeWith(builder.parseFromWithSize(input, expectedSize).build())
+    }
+
+    fun mergeFrom (input: CodedInputStream) {
+        val builder = DirectionResponse.BuilderDirectionResponse(0)
+        mergeWith(builder.parseFrom(input).build())
+    }
+
+    //========== Size-related methods ===========
+    fun getSize(fieldNumber: Int): Int {
+        var size = 0
+        if (code != 0) {
+            size += WireFormat.getInt32Size(1, code)
+        }
+        size += WireFormat.getVarint32Size(size) + WireFormat.getTagSize(fieldNumber, WireType.LENGTH_DELIMITED)
+        return size
+    }
+
+    fun getSizeNoTag(): Int {
+        var size = 0
+        if (code != 0) {
+            size += WireFormat.getInt32Size(1, code)
+        }
+        return size
+    }
+
+    //========== Builder ===========
+    class BuilderDirectionResponse constructor (var code: Int) {
+        //========== Properties ===========
+        //int32 code = 1
+        fun setCode(value: Int): DirectionResponse.BuilderDirectionResponse {
+            code = value
+            return this
+        }
+
+        var errorCode: Int = 0
+
+        //========== Serialization methods ===========
+        fun writeTo (output: CodedOutputStream) {
+            //int32 code = 1
+            if (code != 0) {
+                output.writeInt32 (1, code)
+            }
+
+        }
+
+        //========== Mutating methods ===========
+        fun build(): DirectionResponse {
+            return DirectionResponse(code)
+        }
+
+        fun parseFieldFrom(input: CodedInputStream): Boolean {
+            if (input.isAtEnd()) { return false }
+            val tag = input.readInt32NoTag()
+            if (tag == 0) { return false }
+            val fieldNumber = WireFormat.getTagFieldNumber(tag)
+            val wireType = WireFormat.getTagWireType(tag)
+            when(fieldNumber) {
+                1 -> {
+                    if (wireType != WireType.VARINT) { errorCode = 1; return false }
+                    code = input.readInt32NoTag()
+                }
+            }
+            return true}
+
+        fun parseFromWithSize(input: CodedInputStream, expectedSize: Int): DirectionResponse.BuilderDirectionResponse {
+            while(getSizeNoTag() < expectedSize) {
+                parseFieldFrom(input)
+            }
+            if (getSizeNoTag() > expectedSize) { errorCode = 2 }
+            return this
+        }
+
+        fun parseFrom(input: CodedInputStream): DirectionResponse.BuilderDirectionResponse {
+            while(parseFieldFrom(input)) {}
+            return this
+        }
+
+        //========== Size-related methods ===========
+        fun getSize(fieldNumber: Int): Int {
+            var size = 0
+            if (code != 0) {
+                size += WireFormat.getInt32Size(1, code)
+            }
+            size += WireFormat.getVarint32Size(size) + WireFormat.getTagSize(fieldNumber, WireType.LENGTH_DELIMITED)
+            return size
+        }
+
+        fun getSizeNoTag(): Int {
+            var size = 0
+            if (code != 0) {
+                size += WireFormat.getInt32Size(1, code)
+            }
+            return size
+        }
+
+    }
+
+}
+
+
+fun serialization_test1(i: Int): Int {
+    val msg = DirectionResponse.BuilderDirectionResponse(i).build()
+    val buffer = ByteArray(msg.getSizeNoTag())
+    val output = CodedOutputStream(buffer)
+    msg.writeTo(output)
+
+    val input = CodedInputStream(buffer)
+    val msg2 = DirectionResponse.BuilderDirectionResponse(1).parseFrom(input)
+
+    return msg2.code
+}