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/*!
\file generator_csharp.cpp
\brief Fast binary encoding C# generator implementation
\author Ivan Shynkarenka
\date 20.04.2018
\copyright MIT License
*/
#include "generator_csharp.h"
namespace FBE {
void GeneratorCSharp::Generate(const std::shared_ptr<Package>& package)
{
std::string domain = (package->domain && !package->domain->empty()) ? (*package->domain + ".") : "";
GeneratePackage(domain, package);
}
void GeneratorCSharp::GenerateHeader(const std::string& source)
{
std::string code = R"CODE(//------------------------------------------------------------------------------
// <auto-generated>
// Automatically generated by the Fast Binary Encoding compiler, do not modify!
// https://github.com/chronoxor/FastBinaryEncoding
// Source: _INPUT_
// FBE version: _VERSION_
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
)CODE";
// Prepare code template
code = std::regex_replace(code, std::regex("_INPUT_"), source);
code = std::regex_replace(code, std::regex("_VERSION_"), version);
code = std::regex_replace(code, std::regex("\n"), EndLine());
Write(code);
}
void GeneratorCSharp::GenerateFooter()
{
}
void GeneratorCSharp::GenerateImports()
{
// Generate common imports
WriteLine();
WriteLineIndent("using System;");
WriteLineIndent("using System.Collections.Generic;");
WriteLineIndent("using System.Diagnostics;");
WriteLineIndent("using System.Globalization;");
WriteLineIndent("using System.IO;");
WriteLineIndent("using System.Linq;");
WriteLineIndent("using System.Numerics;");
WriteLineIndent("using System.Runtime.Serialization;");
WriteLineIndent("using System.Text;");
WriteLineIndent("using System.Threading;");
WriteLineIndent("using System.Threading.Tasks;");
if (JSON())
{
WriteLineIndent("#if UTF8JSON");
WriteLineIndent("using Utf8Json;");
WriteLineIndent("using Utf8Json.Resolvers;");
WriteLineIndent("#elif NEWTONSOFTJSON");
WriteLineIndent("using Newtonsoft.Json;");
WriteLineIndent("#else");
WriteLineIndent("using System.Text.Json;");
WriteLineIndent("using System.Text.Json.Serialization;");
WriteLineIndent("#endif");
}
}
void GeneratorCSharp::GenerateImports(const std::string& domain, const std::shared_ptr<Package>& p)
{
// Generate common imports
GenerateImports();
// Generate packages import
if (p->import)
{
WriteLine();
for (auto import : p->import->imports)
WriteLineIndent("using " + domain + *import + ";");
}
}
void GeneratorCSharp::GenerateFBEUuidGenerator()
{
std::string code = R"CODE(
// Fast Binary Encoding UUID generator
public static class UuidGenerator
{
// Gregorian epoch
private static readonly DateTime GregorianEpoch = new DateTime(1582, 10, 15, 0, 0, 0, DateTimeKind.Utc);
// Lock and random generator
private static readonly object Lock = new object();
private static readonly Random Generator = new Random();
// Node & clock sequence bytes
private static readonly byte[] NodeBytes;
private static readonly byte[] ClockSequenceBytes;
// Last UUID generated timestamp
private static DateTime _last = DateTime.UtcNow;
static UuidGenerator()
{
NodeBytes = new byte[6];
Generator.NextBytes(NodeBytes);
ClockSequenceBytes = new byte[2];
Generator.NextBytes(ClockSequenceBytes);
}
// Generate nil UUID0 (all bits set to zero)
public static Guid Nil() { return new Guid(); }
// Generate sequential UUID1 (time based version)
public static Guid Sequential()
{
var now = DateTime.UtcNow;
// Generate new clock sequence bytes to get rid of UUID duplicates
lock (Lock)
{
if (now <= _last)
Generator.NextBytes(ClockSequenceBytes);
_last = now;
}
long ticks = (now - GregorianEpoch).Ticks;
Span<byte> guid = stackalloc byte[16];
byte[] timestamp = BitConverter.GetBytes(ticks);
// Copy node
for (int i = 0; i < Math.Min(6, NodeBytes.Length); i++)
guid[10 + i] = NodeBytes[i];
// Copy clock sequence
for (int i = 0; i < Math.Min(2, ClockSequenceBytes.Length); i++)
guid[8 + i] = ClockSequenceBytes[i];
// Copy timestamp
for (int i = 0; i < Math.Min(8, timestamp.Length); i++)
guid[i] = timestamp[i];
// Set the variant
guid[8] &= 0x3F;
guid[8] |= 0x80;
// Set the version
guid[7] &= 0x0F;
guid[7] |= 0x10;
return new Guid(guid);
}
// Generate random UUID4 (randomly or pseudo-randomly generated version)
public static Guid Random() { return Guid.NewGuid(); }
}
)CODE";
// Prepare code template
code = std::regex_replace(code, std::regex("\n"), EndLine());
Write(code);
}
void GeneratorCSharp::GenerateFBEBuffer()
{
std::string code = R"CODE(
// Fast Binary Encoding dynamic bytes buffer
public class Buffer
{
private byte[] _data;
private long _size;
private long _offset;
// Is the buffer empty?
public bool IsEmpty => (_data == null) || (_size == 0);
// Bytes memory buffer
public byte[] Data => _data;
// Bytes memory buffer capacity
public long Capacity => _data.Length;
// Bytes memory buffer size
public long Size => _size;
// Bytes memory buffer offset
public long Offset => _offset;
// Initialize a new expandable buffer with zero capacity
public Buffer() { Attach(); }
// Initialize a new expandable buffer with the given capacity
public Buffer(long capacity) { Attach(capacity); }
// Initialize a new buffer based on the specified byte array
public Buffer(byte[] buffer) { Attach(buffer); }
// Initialize a new buffer based on the specified region (offset) of a byte array
public Buffer(byte[] buffer, long offset) { Attach(buffer, offset); }
// Initialize a new buffer based on the specified region (size and offset) of a byte array
public Buffer(byte[] buffer, long size, long offset) { Attach(buffer, size, offset); }
#region Attach memory buffer methods
public void Attach() { _data = new byte[0]; _size = 0; _offset = 0; }
public void Attach(long capacity) { _data = new byte[capacity]; _size = 0; _offset = 0; }
public void Attach(byte[] buffer) { _data = buffer; _size = buffer.Length; _offset = 0; }
public void Attach(byte[] buffer, long offset) { _data = buffer; _size = buffer.Length; _offset = offset; }
public void Attach(byte[] buffer, long size, long offset) { _data = buffer; _size = size; _offset = offset; }
#endregion
#region Memory buffer methods
// Allocate memory in the current buffer and return offset to the allocated memory block
public long Allocate(long size)
{
Debug.Assert((size >= 0), "Invalid allocation size!");
if (size < 0)
throw new ArgumentException("Invalid allocation size!", nameof(size));
long offset = Size;
// Calculate a new buffer size
long total = _size + size;
if (total <= Capacity)
{
_size = total;
return offset;
}
byte[] data = new byte[Math.Max(total, 2 * Capacity)];
Array.Copy(_data, 0, data, 0, _size);
_data = data;
_size = total;
return offset;
}
// Remove some memory of the given size from the current buffer
public void Remove(long offset, long size)
{
Debug.Assert(((offset + size) <= Size), "Invalid offset & size!");
if ((offset + size) > Size)
throw new ArgumentException("Invalid offset & size!", nameof(offset));
Array.Copy(_data, offset + size, _data, offset, _size - size - offset);
_size -= size;
if (_offset >= (offset + size))
_offset -= size;
else if (_offset >= offset)
{
_offset -= _offset - offset;
if (_offset > Size)
_offset = Size;
}
}
// Reserve memory of the given capacity in the current buffer
public void Reserve(long capacity)
{
Debug.Assert((capacity >= 0), "Invalid reserve capacity!");
if (capacity < 0)
throw new ArgumentException("Invalid reserve capacity!", nameof(capacity));
if (capacity > Capacity)
{
byte[] data = new byte[Math.Max(capacity, 2 * Capacity)];
Array.Copy(_data, 0, data, 0, _size);
_data = data;
}
}
// Resize the current buffer
public void Resize(long size)
{
Reserve(size);
_size = size;
if (_offset > _size)
_offset = _size;
}
// Reset the current buffer and its offset
public void Reset()
{
_size = 0;
_offset = 0;
}
// Shift the current buffer offset
public void Shift(long offset) { _offset += offset; }
// Unshift the current buffer offset
public void Unshift(long offset) { _offset -= offset; }
#endregion
)CODE";
// Prepare code template
code = std::regex_replace(code, std::regex("\n"), EndLine());
Write(code);
code = R"CODE(
#region Buffer I/O methods
public static bool ReadBool(byte[] buffer, long offset)
{
return buffer[offset] != 0;
}
public static byte ReadByte(byte[] buffer, long offset)
{
return buffer[offset];
}
public static char ReadChar(byte[] buffer, long offset)
{
return (char)ReadUInt8(buffer, offset);
}
public static char ReadWChar(byte[] buffer, long offset)
{
return (char)ReadUInt32(buffer, offset);
}
public static sbyte ReadInt8(byte[] buffer, long offset)
{
return (sbyte)buffer[offset];
}
public static byte ReadUInt8(byte[] buffer, long offset)
{
return buffer[offset];
}
public static short ReadInt16(byte[] buffer, long offset)
{
return (short)(buffer[offset + 0] | (buffer[offset + 1] << 8));
}
public static ushort ReadUInt16(byte[] buffer, long offset)
{
return (ushort)(buffer[offset + 0] | (buffer[offset + 1] << 8));
}
public static int ReadInt32(byte[] buffer, long offset)
{
return (buffer[offset + 0] << 0)|
(buffer[offset + 1] << 8)|
(buffer[offset + 2] << 16)|
(buffer[offset + 3] << 24);
}
public static uint ReadUInt32(byte[] buffer, long offset)
{
return ((uint)buffer[offset + 0] << 0)|
((uint)buffer[offset + 1] << 8)|
((uint)buffer[offset + 2] << 16)|
((uint)buffer[offset + 3] << 24);
}
public static long ReadInt64(byte[] buffer, long offset)
{
return ((long)buffer[offset + 0] << 0)|
((long)buffer[offset + 1] << 8)|
((long)buffer[offset + 2] << 16)|
((long)buffer[offset + 3] << 24)|
((long)buffer[offset + 4] << 32)|
((long)buffer[offset + 5] << 40)|
((long)buffer[offset + 6] << 48)|
((long)buffer[offset + 7] << 56);
}
public static ulong ReadUInt64(byte[] buffer, long offset)
{
return ((ulong)buffer[offset + 0] << 0)|
((ulong)buffer[offset + 1] << 8)|
((ulong)buffer[offset + 2] << 16)|
((ulong)buffer[offset + 3] << 24)|
((ulong)buffer[offset + 4] << 32)|
((ulong)buffer[offset + 5] << 40)|
((ulong)buffer[offset + 6] << 48)|
((ulong)buffer[offset + 7] << 56);
}
public static ulong ReadUInt64Guid(byte[] buffer, long offset)
{
return ((ulong)buffer[offset + 0] << 24)|
((ulong)buffer[offset + 1] << 16)|
((ulong)buffer[offset + 2] << 8)|
((ulong)buffer[offset + 3] << 0)|
((ulong)buffer[offset + 4] << 40)|
((ulong)buffer[offset + 5] << 32)|
((ulong)buffer[offset + 6] << 56)|
((ulong)buffer[offset + 7] << 48);
}
public static float ReadFloat(byte[] buffer, long offset)
{
var bits = default(FloatUnion);
bits.UIntData = ReadUInt32(buffer, offset);
return bits.FloatData;
}
public static double ReadDouble(byte[] buffer, long offset)
{
var bits = default(DoubleUnion);
bits.ULongData = ReadUInt64(buffer, offset);
return bits.DoubleData;
}
public static decimal ReadDecimal(byte[] buffer, long offset)
{
var bits = default(DecimalUnion);
bits.UIntLow = ReadUInt32(buffer, offset);
bits.UIntMid = ReadUInt32(buffer, offset + 4);
bits.UIntHigh = ReadUInt32(buffer, offset + 8);
bits.UIntFlags = ReadUInt32(buffer, offset + 12);
return bits.DecimalData;
}
public static byte[] ReadBytes(byte[] buffer, long offset, long size)
{
byte[] result = new byte[size];
Array.Copy(buffer, offset, result, 0, (int)size);
return result;
}
public static string ReadString(byte[] buffer, long offset, long size)
{
return Encoding.UTF8.GetString(buffer, (int)offset, (int)size);
}
public static Guid ReadUUID(byte[] buffer, long offset)
{
var bits = default(GuidUnion);
bits.ULongHigh = ReadUInt64Guid(buffer, offset);
bits.ULongLow = ReadUInt64(buffer, offset + 8);
return bits.GuidData;
}
public static void Write(byte[] buffer, long offset, bool value)
{
buffer[offset] = (byte)(value ? 1 : 0);
}
public static void Write(byte[] buffer, long offset, sbyte value)
{
buffer[offset] = (byte)value;
}
public static void Write(byte[] buffer, long offset, byte value)
{
buffer[offset] = value;
}
public static void Write(byte[] buffer, long offset, short value)
{
buffer[offset + 0] = (byte)(value >> 0);
buffer[offset + 1] = (byte)(value >> 8);
}
public static void Write(byte[] buffer, long offset, ushort value)
{
buffer[offset + 0] = (byte)(value >> 0);
buffer[offset + 1] = (byte)(value >> 8);
}
public static void Write(byte[] buffer, long offset, int value)
{
buffer[offset + 0] = (byte)(value >> 0);
buffer[offset + 1] = (byte)(value >> 8);
buffer[offset + 2] = (byte)(value >> 16);
buffer[offset + 3] = (byte)(value >> 24);
}
public static void Write(byte[] buffer, long offset, uint value)
{
buffer[offset + 0] = (byte)(value >> 0);
buffer[offset + 1] = (byte)(value >> 8);
buffer[offset + 2] = (byte)(value >> 16);
buffer[offset + 3] = (byte)(value >> 24);
}
public static void Write(byte[] buffer, long offset, long value)
{
buffer[offset + 0] = (byte)(value >> 0);
buffer[offset + 1] = (byte)(value >> 8);
buffer[offset + 2] = (byte)(value >> 16);
buffer[offset + 3] = (byte)(value >> 24);
buffer[offset + 4] = (byte)(value >> 32);
buffer[offset + 5] = (byte)(value >> 40);
buffer[offset + 6] = (byte)(value >> 48);
buffer[offset + 7] = (byte)(value >> 56);
}
public static void Write(byte[] buffer, long offset, ulong value)
{
buffer[offset + 0] = (byte)(value >> 0);
buffer[offset + 1] = (byte)(value >> 8);
buffer[offset + 2] = (byte)(value >> 16);
buffer[offset + 3] = (byte)(value >> 24);
buffer[offset + 4] = (byte)(value >> 32);
buffer[offset + 5] = (byte)(value >> 40);
buffer[offset + 6] = (byte)(value >> 48);
buffer[offset + 7] = (byte)(value >> 56);
}
public static void WriteGuid(byte[] buffer, long offset, ulong value)
{
buffer[offset + 0] = (byte)(value >> 24);
buffer[offset + 1] = (byte)(value >> 16);
buffer[offset + 2] = (byte)(value >> 8);
buffer[offset + 3] = (byte)(value >> 0);
buffer[offset + 4] = (byte)(value >> 40);
buffer[offset + 5] = (byte)(value >> 32);
buffer[offset + 6] = (byte)(value >> 56);
buffer[offset + 7] = (byte)(value >> 48);
}
public static void Write(byte[] buffer, long offset, float value)
{
var bits = default(FloatUnion);
bits.FloatData = value;
Write(buffer, offset, bits.UIntData);
}
public static void Write(byte[] buffer, long offset, double value)
{
var bits = default(DoubleUnion);
bits.DoubleData = value;
Write(buffer, offset, bits.ULongData);
}
public static void Write(byte[] buffer, long offset, decimal value)
{
var bits = default(DecimalUnion);
bits.DecimalData = value;
Write(buffer, offset, bits.UIntLow);
Write(buffer, offset + 4, bits.UIntMid);
Write(buffer, offset + 8, bits.UIntHigh);
Write(buffer, offset + 12, bits.UIntFlags);
}
public static void Write(byte[] buffer, long offset, byte[] value)
{
Array.Copy(value, 0, buffer, offset, value.Length);
}
public static void Write(byte[] buffer, long offset, byte[] value, long valueOffset, long valueSize)
{
Array.Copy(value, valueOffset, buffer, offset, valueSize);
}
public static void Write(byte[] buffer, long offset, byte value, long valueCount)
{
for (long i = 0; i < valueCount; i++)
buffer[offset + i] = value;
}
public static long Write(byte[] buffer, long offset, string value)
{
return Encoding.UTF8.GetBytes(value, 0, value.Length, buffer, (int)offset);
}
public static void Write(byte[] buffer, long offset, Guid value)
{
var bits = default(GuidUnion);
bits.GuidData = value;
WriteGuid(buffer, offset, bits.ULongHigh);
Write(buffer, offset + 8, bits.ULongLow);
}
#endregion
#region Utilities
[System.Runtime.InteropServices.StructLayout(System.Runtime.InteropServices.LayoutKind.Explicit)]
private struct FloatUnion
{
[System.Runtime.InteropServices.FieldOffset(0)]
public uint UIntData;
[System.Runtime.InteropServices.FieldOffset(0)]
public float FloatData;
}
[System.Runtime.InteropServices.StructLayout(System.Runtime.InteropServices.LayoutKind.Explicit)]
private struct DoubleUnion
{
[System.Runtime.InteropServices.FieldOffset(0)]
public ulong ULongData;
[System.Runtime.InteropServices.FieldOffset(0)]
public double DoubleData;
}
[System.Runtime.InteropServices.StructLayout(System.Runtime.InteropServices.LayoutKind.Explicit)]
private struct DecimalUnion
{
[System.Runtime.InteropServices.FieldOffset(0)]
public uint UIntFlags;
[System.Runtime.InteropServices.FieldOffset(4)]
public uint UIntHigh;
[System.Runtime.InteropServices.FieldOffset(8)]
public uint UIntLow;
[System.Runtime.InteropServices.FieldOffset(12)]
public uint UIntMid;
[System.Runtime.InteropServices.FieldOffset(0)]
public decimal DecimalData;
}
[System.Runtime.InteropServices.StructLayout(System.Runtime.InteropServices.LayoutKind.Explicit)]
private struct GuidUnion
{
[System.Runtime.InteropServices.FieldOffset(0)]
public ulong ULongHigh;
[System.Runtime.InteropServices.FieldOffset(8)]
public ulong ULongLow;
[System.Runtime.InteropServices.FieldOffset(0)]
public Guid GuidData;
}
#endregion
}
)CODE";
// Prepare code template
code = std::regex_replace(code, std::regex("\n"), EndLine());
Write(code);
}
void GeneratorCSharp::GenerateFBEBaseModel()
{
std::string code = R"CODE(
// Fast Binary Encoding base model
public class Model
{
// Bytes buffer
public Buffer Buffer { get; }
protected Model() { Buffer = new Buffer(); }
protected Model(Buffer buffer) { Buffer = buffer; }
#region Attach memory buffer methods
public void Attach() { Buffer.Attach(); }
public void Attach(long capacity) { Buffer.Attach(capacity); }
public void Attach(byte[] buffer) { Buffer.Attach(buffer); }
public void Attach(byte[] buffer, long offset) { Buffer.Attach(buffer, offset); }
public void Attach(byte[] buffer, long size, long offset) { Buffer.Attach(buffer, size, offset); }
public void Attach(Buffer buffer) { Buffer.Attach(buffer.Data, buffer.Size, buffer.Offset); }
public void Attach(Buffer buffer, long offset) { Buffer.Attach(buffer.Data, buffer.Size, offset); }
#endregion
#region Memory buffer methods
public long Allocate(long size) { return Buffer.Allocate(size); }
public void Remove(long offset, long size) { Buffer.Remove(offset, size); }
public void Reserve(long capacity) { Buffer.Reserve(capacity); }
public void Resize(long size) { Buffer.Resize(size); }
public void Reset() { Buffer.Reset(); }
public void Shift(long offset) { Buffer.Shift(offset); }
public void Unshift(long offset) { Buffer.Unshift(offset); }
#endregion
#region Buffer I/O methods
protected uint ReadUInt32(long offset) { return Buffer.ReadUInt32(Buffer.Data, Buffer.Offset + offset); }
protected void Write(long offset, uint value) { Buffer.Write(Buffer.Data, Buffer.Offset + offset, value); }
#endregion
}
)CODE";
// Prepare code template
code = std::regex_replace(code, std::regex("\n"), EndLine());
Write(code);
}
void GeneratorCSharp::GenerateFBEFieldModelBase()
{
std::string code = R"CODE(
// Fast Binary Encoding base types enumeration
public enum BaseTypes
{
BOOL,
BYTE,
BYTES,
CHAR,
WCHAR,
INT8,
UINT8,
INT16,
UINT16,
INT32,
UINT32,
INT64,
UINT64,
FLOAT,
DOUBLE,
DECIMAL,
UUID,
STRING,
TIMESTAMP
}
// Fast Binary Encoding base field model
public abstract class FieldModelBase
{
protected Buffer _buffer;
protected long _offset;
protected FieldModelBase(Buffer buffer, long offset)
{
_buffer = buffer;
_offset = offset;
}
// Get the field offset
public long FBEOffset { get => _offset; set => _offset = value; }
// Get the field size
public virtual long FBESize => 0;
// Get the field extra size
public virtual long FBEExtra => 0;
// Shift the current field offset
public void FBEShift(long size) { _offset += size; }
// Unshift the current field offset
public void FBEUnshift(long size) { _offset -= size; }
#region Buffer I/O methods
protected bool ReadBool(long offset) { return Buffer.ReadBool(_buffer.Data, _buffer.Offset + offset); }
protected byte ReadByte(long offset) { return Buffer.ReadByte(_buffer.Data, _buffer.Offset + offset); }
protected char ReadChar(long offset) { return Buffer.ReadChar(_buffer.Data, _buffer.Offset + offset); }
protected char ReadWChar(long offset) { return Buffer.ReadWChar(_buffer.Data, _buffer.Offset + offset); }
protected sbyte ReadInt8(long offset) { return Buffer.ReadInt8(_buffer.Data, _buffer.Offset + offset); }
protected byte ReadUInt8(long offset) { return Buffer.ReadUInt8(_buffer.Data, _buffer.Offset + offset); }
protected short ReadInt16(long offset) { return Buffer.ReadInt16(_buffer.Data, _buffer.Offset + offset); }
protected ushort ReadUInt16(long offset) { return Buffer.ReadUInt16(_buffer.Data, _buffer.Offset + offset); }
protected int ReadInt32(long offset) { return Buffer.ReadInt32(_buffer.Data, _buffer.Offset + offset); }
protected uint ReadUInt32(long offset) { return Buffer.ReadUInt32(_buffer.Data, _buffer.Offset + offset); }
protected long ReadInt64(long offset) { return Buffer.ReadInt64(_buffer.Data, _buffer.Offset + offset); }
protected ulong ReadUInt64(long offset) { return Buffer.ReadUInt64(_buffer.Data, _buffer.Offset + offset); }
protected float ReadFloat(long offset) { return Buffer.ReadFloat(_buffer.Data, _buffer.Offset + offset); }
protected double ReadDouble(long offset) { return Buffer.ReadDouble(_buffer.Data, _buffer.Offset + offset); }
protected decimal ReadDecimal(long offset) { return Buffer.ReadDecimal(_buffer.Data, _buffer.Offset + offset); }
protected byte[] ReadBytes(long offset, long size) { return Buffer.ReadBytes(_buffer.Data, _buffer.Offset + offset, size); }
protected string ReadString(long offset, long size) { return Buffer.ReadString(_buffer.Data, _buffer.Offset + offset, size); }
protected Guid ReadUUID(long offset) { return Buffer.ReadUUID(_buffer.Data, _buffer.Offset + offset); }
protected void Write(long offset, bool value) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value); }
protected void Write(long offset, sbyte value) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value); }
protected void Write(long offset, byte value) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value); }
protected void Write(long offset, short value) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value); }
protected void Write(long offset, ushort value) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value); }
protected void Write(long offset, int value) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value); }
protected void Write(long offset, uint value) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value); }
protected void Write(long offset, long value) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value); }
protected void Write(long offset, ulong value) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value); }
protected void Write(long offset, float value) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value); }
protected void Write(long offset, double value) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value); }
protected void Write(long offset, decimal value) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value); }
protected void Write(long offset, byte[] value) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value); }
protected void Write(long offset, byte[] value, long valueOffset, long valueSize) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value, valueOffset, valueSize); }
protected void Write(long offset, byte value, long valueCount) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value, valueCount); }
protected long Write(long offset, string value) { return Buffer.Write(_buffer.Data, _buffer.Offset + offset, value); }
protected void Write(long offset, Guid value) { Buffer.Write(_buffer.Data, _buffer.Offset + offset, value); }
#endregion
}
// Fast Binary Encoding field model value type
public abstract class FieldModelValueType<T> : FieldModelBase
where T : struct
{
protected FieldModelValueType(Buffer buffer, long offset) : base(buffer, offset) {}
// Clone the field model
public abstract FieldModelValueType<T> Clone();
// Check if the value is valid
public virtual bool Verify() { return true; }
// Get the value
public abstract void Get(out T value);
public abstract void Get(out T value, T defaults);
// Set the value
public abstract void Set(T value);
// Create field model of the given type
public static FieldModelValueType<T> CreateFieldModel(BaseTypes type, Buffer buffer, long offset)
{
switch (type)
{
case BaseTypes.BOOL:
return new FieldModelBool(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.BYTE:
return new FieldModelByte(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.CHAR:
return new FieldModelChar(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.WCHAR:
return new FieldModelWChar(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.INT8:
return new FieldModelInt8(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.UINT8:
return new FieldModelUInt8(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.INT16:
return new FieldModelInt16(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.UINT16:
return new FieldModelUInt16(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.INT32:
return new FieldModelInt32(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.UINT32:
return new FieldModelUInt32(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.INT64:
return new FieldModelInt64(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.UINT64:
return new FieldModelUInt64(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.FLOAT:
return new FieldModelFloat(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.DOUBLE:
return new FieldModelDouble(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.DECIMAL:
return new FieldModelDecimal(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.UUID:
return new FieldModelUUID(buffer, offset) as FieldModelValueType<T>;
case BaseTypes.TIMESTAMP:
return new FieldModelTimestamp(buffer, offset) as FieldModelValueType<T>;
default:
Debug.Assert(false, "Unknown type!");
return null;
}
}
}
// Fast Binary Encoding field model reference type
public abstract class FieldModelReferenceType<T> : FieldModelBase
where T : class
{
protected FieldModelReferenceType(Buffer buffer, long offset) : base(buffer, offset) {}
// Clone the field model
public abstract FieldModelReferenceType<T> Clone();
// Check if the value is valid
public virtual bool Verify() { return true; }
// Get the value
public abstract void Get(out T value);
public abstract void Get(out T value, T defaults);
// Set the value
public abstract void Set(T value);
// Create field model of the given type
public static FieldModelReferenceType<T> CreateFieldModel(BaseTypes type, Buffer buffer, long offset)
{
switch (type)
{
case BaseTypes.BYTES:
return new FieldModelBytes(buffer, offset) as FieldModelReferenceType<T>;
case BaseTypes.STRING:
return new FieldModelString(buffer, offset) as FieldModelReferenceType<T>;
default:
Debug.Assert(false, "Unknown type!");
return null;
}
}
}
)CODE";
// Prepare code template
code = std::regex_replace(code, std::regex("\n"), EndLine());
Write(code);
}
void GeneratorCSharp::GenerateFBEFieldModel(const std::string& name, const std::string& type, const std::string& base, const std::string& size, const std::string& defaults)
{
std::string code = R"CODE(
// Fast Binary Encoding _TYPE_ field model
public class FieldModel_NAME_ : FieldModelValueType<_TYPE_>
{
public FieldModel_NAME_(Buffer buffer, long offset) : base(buffer, offset) {}
// Get the field size
public override long FBESize => _SIZE_;
// Clone the field model
public override FieldModelValueType<_TYPE_> Clone() { return new FieldModel_NAME_(_buffer, _offset); }
// Get the value
public override void Get(out _TYPE_ value) { Get(out value, _DEFAULTS_); }
public override void Get(out _TYPE_ value, _TYPE_ defaults)
{
if ((_buffer.Offset + FBEOffset + FBESize) > _buffer.Size)
{
value = defaults;
return;
}
value = Read_NAME_(FBEOffset);
}
// Set the value
public override void Set(_TYPE_ value)
{
Debug.Assert(((_buffer.Offset + FBEOffset + FBESize) <= _buffer.Size), "Model is broken!");
if ((_buffer.Offset + FBEOffset + FBESize) > _buffer.Size)
return;
Write(FBEOffset, _BASE_value);
}
}
)CODE";
// Prepare code template
code = std::regex_replace(code, std::regex("_NAME_"), name);
code = std::regex_replace(code, std::regex("_TYPE_"), type);
code = std::regex_replace(code, std::regex("_BASE_"), base);
code = std::regex_replace(code, std::regex("_SIZE_"), size);
code = std::regex_replace(code, std::regex("_DEFAULTS_"), defaults);
code = std::regex_replace(code, std::regex("\n"), EndLine());
Write(code);
}
void GeneratorCSharp::GenerateFBEFieldModelTimestamp()
{
std::string code = R"CODE(
// Fast Binary Encoding timestamp field model
public class FieldModelTimestamp : FieldModelValueType<DateTime>
{
private const long UnixEpoch = 621355968000000000;
public FieldModelTimestamp(Buffer buffer, long offset) : base(buffer, offset) {}
// Get the field size
public override long FBESize => 8;
// Clone the field model
public override FieldModelValueType<DateTime> Clone() { return new FieldModelTimestamp(_buffer, _offset); }
// Get the timestamp value
public override void Get(out DateTime value) { Get(out value, new DateTime(UnixEpoch, DateTimeKind.Utc)); }
public override void Get(out DateTime value, DateTime defaults)
{
if ((_buffer.Offset + FBEOffset + FBESize) > _buffer.Size)
{
value = defaults;
return;
}
ulong ticks = ReadUInt64(FBEOffset) / 100;
value = new DateTime((long)(UnixEpoch + ticks), DateTimeKind.Utc);
}
// Set the timestamp value
public override void Set(DateTime value)
{
Debug.Assert(((_buffer.Offset + FBEOffset + FBESize) <= _buffer.Size), "Model is broken!");
if ((_buffer.Offset + FBEOffset + FBESize) > _buffer.Size)
return;
ulong nanoseconds = (ulong)((value.Ticks - UnixEpoch) * 100);
Write(FBEOffset, nanoseconds);
}
}
)CODE";
// Prepare code template
code = std::regex_replace(code, std::regex("\n"), EndLine());
Write(code);
}
void GeneratorCSharp::GenerateFBEFieldModelBytes()
{
std::string code = R"CODE(
// Fast Binary Encoding bytes field model
public class FieldModelBytes : FieldModelReferenceType<MemoryStream>
{
public FieldModelBytes(Buffer buffer, long offset) : base(buffer, offset) {}
// Get the field size
public override long FBESize => 4;
// Get the field extra size
public override long FBEExtra
{
get
{
if ((_buffer.Offset + FBEOffset + FBESize) > _buffer.Size)
return 0;
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