/// <summary>
/// Generates code for writing a class/message
/// </summary>
static void GenerateWriter(ProtoMessage m, CodeWriter cw, Options options)
{
string stack = "global::SilentOrbit.ProtocolBuffers.ProtocolParser.Stack";
if (options.ExperimentalStack != null)
{
cw.WriteLine("[ThreadStatic]");
cw.WriteLine("static global::SilentOrbit.ProtocolBuffers.MemoryStreamStack stack = new " + options.ExperimentalStack + "();");
stack = "stack";
}
cw.Summary("Serialize the instance into the stream");
cw.Bracket(m.OptionAccess + " static void Serialize(Stream stream, " + m.CsType + " instance)");
if (m.OptionTriggers)
{
cw.WriteLine("instance.BeforeSerialize();");
cw.WriteLine();
}
if (m.IsUsingBinaryWriter)
{
cw.WriteLine("BinaryWriter bw = new BinaryWriter(stream);");
}
//Shared memorystream for all fields
cw.WriteLine("var msField = " + stack + ".Pop();");
foreach (Field f in m.Fields.Values)
{
FieldSerializer.FieldWriter(m, f, cw);
}
cw.WriteLine(stack + ".Push(msField);");
if (m.OptionPreserveUnknown)
{
cw.IfBracket("instance.PreservedFields != null");
cw.ForeachBracket("var kv in instance.PreservedFields");
cw.WriteLine("global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteKey(stream, kv.Key);");
cw.WriteLine("stream.Write(kv.Value, 0, kv.Value.Length);");
cw.EndBracket();
cw.EndBracket();
}
cw.EndBracket();
cw.WriteLine();
cw.Summary("Helper: Serialize into a MemoryStream and return its byte array");
cw.Bracket(m.OptionAccess + " static byte[] SerializeToBytes(" + m.CsType + " instance)");
cw.Using("var ms = new MemoryStream()");
cw.WriteLine("Serialize(ms, instance);");
cw.WriteLine("return ms.ToArray();");
cw.EndBracket();
cw.EndBracket();
cw.Summary("Helper: Serialize with a varint length prefix");
cw.Bracket(m.OptionAccess + " static void SerializeLengthDelimited(Stream stream, " + m.CsType + " instance)");
cw.WriteLine("var data = SerializeToBytes(instance);");
cw.WriteLine("global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteUInt32(stream, (uint)data.Length);");
cw.WriteLine("stream.Write(data, 0, data.Length);");
cw.EndBracket();
}
/// <summary>
/// Generates code for writing one field
/// </summary>
public void FieldWriter(ProtoMessage m, Field f, CodeWriter cw, Options options)
{
if (f.Rule == FieldRule.Repeated)
{
//Repeated not packet
cw.IfBracket("instance." + f.CsName + " != null");
cw.ForeachBracket("var i" + f.ID + " in instance." + f.CsName);
KeyWriter("stream", f.ID, f.ProtoType.WireType, cw);
FieldWriterType(f, "stream", "bw", "i" + f.ID, cw);
cw.EndBracket();
cw.EndBracket();
}
else if (f.Rule == FieldRule.Optional)
{
if (options.Nullable ||
f.ProtoType is ProtoMessage ||
f.ProtoType.ProtoName == ProtoBuiltin.String ||
f.ProtoType.ProtoName == ProtoBuiltin.Bytes)
{
if (f.ProtoType.Nullable || options.Nullable) //Struct always exist, not optional
{
cw.IfBracket("instance." + f.CsName + " != null");
}
KeyWriter("stream", f.ID, f.ProtoType.WireType, cw);
var needValue = !f.ProtoType.Nullable && options.Nullable;
FieldWriterType(f, "stream", "bw", "instance." + f.CsName + (needValue ? ".Value" : ""), cw);
if (f.ProtoType.Nullable || options.Nullable) //Struct always exist, not optional
{
cw.EndBracket();
}
return;
}
if (f.ProtoType is ProtoEnum)
{
KeyWriter("stream", f.ID, f.ProtoType.WireType, cw);
FieldWriterType(f, "stream", "bw", "instance." + f.CsName, cw);
return;
}
KeyWriter("stream", f.ID, f.ProtoType.WireType, cw);
FieldWriterType(f, "stream", "bw", "instance." + f.CsName, cw);
return;
}
else if (f.Rule == FieldRule.Required)
{
if (f.ProtoType is ProtoMessage ||
f.ProtoType.ProtoName == ProtoBuiltin.String ||
f.ProtoType.ProtoName == ProtoBuiltin.Bytes)
{
cw.WriteLine("if (instance." + f.CsName + " == null)");
cw.WriteIndent("throw new global::SilentOrbit.ProtocolBuffers.ProtocolBufferException(\"" + f.CsName + " is required by the proto specification.\");");
}
KeyWriter("stream", f.ID, f.ProtoType.WireType, cw);
FieldWriterType(f, "stream", "bw", "instance." + f.CsName, cw);
return;
}
throw new NotImplementedException("Unknown rule: " + f.Rule);
}
/// <summary>
/// Generates code for writing a class/message
/// </summary>
static void GenerateWriter(ProtoMessage m, CodeWriter cw)
{
cw.Summary("Serialize the instance into the stream");
cw.Bracket(m.OptionAccess + " static void Serialize(CitoStream stream, " + m.FullCsType + " instance)");
if (m.OptionTriggers)
{
cw.WriteLine("instance.BeforeSerialize();");
cw.WriteLine();
}
if (m.IsUsingBinaryWriter)
{
cw.WriteLine("BinaryWriter bw = new BinaryWriter(stream);");
}
foreach (Field f in m.Fields.Values)
{
FieldSerializer.FieldWriter(m, f, cw);
}
if (m.OptionPreserveUnknown)
{
cw.IfBracket("instance.PreservedFields != null");
cw.ForeachBracket("var kv in instance.PreservedFields");
cw.WriteLine("ProtocolParser.WriteKey(stream, kv.Key);");
cw.WriteLine("stream.Write(kv.Value, 0, kv.Value.Length);");
cw.EndBracket();
cw.EndBracket();
}
cw.EndBracket();
cw.WriteLine();
cw.Summary("Helper: Serialize into a MemoryStream and return its byte array");
cw.Bracket(m.OptionAccess + " static byte[] SerializeToBytes(" + m.FullCsType + " instance)");
cw.WriteLine("CitoMemoryStream ms = new CitoMemoryStream();");
cw.WriteLine("Serialize(ms, instance);");
cw.WriteLine("return ms.ToArray();");
//cw.EndBracket();
cw.EndBracket();
cw.Summary("Helper: Serialize with a varint length prefix");
cw.Bracket(m.OptionAccess + " static void SerializeLengthDelimited(CitoStream stream, " + m.FullCsType + " instance)");
cw.WriteLine("byte[] data = SerializeToBytes(instance);");
cw.WriteLine("ProtocolParser.WriteUInt32_(stream, ProtoPlatform.ArrayLength(data));");
cw.WriteLine("stream.Write(data, 0, ProtoPlatform.ArrayLength(data));");
cw.EndBracket();
}
/// <summary>
/// Generates code for writing a class/message
/// </summary>
static void GenerateWriter(ProtoMessage m, CodeWriter cw)
{
cw.Summary("Serialize the instance into the stream");
cw.Bracket(m.OptionAccess + " static void Serialize(Stream stream, " + m.CsType + " instance)");
if (m.OptionTriggers)
{
cw.WriteLine("instance.BeforeSerialize();");
cw.WriteLine();
}
if (m.IsUsingBinaryWriter)
{
cw.WriteLine("BinaryWriter bw = new BinaryWriter(stream);");
}
foreach (Field f in m.Fields.Values)
{
FieldSerializer.FieldWriter(m, f, cw);
}
if (m.OptionPreserveUnknown)
{
cw.IfBracket("instance.PreservedFields != null");
cw.ForeachBracket("var kv in instance.PreservedFields");
cw.WriteLine("global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteKey(stream, kv.Key);");
cw.WriteLine("stream.Write(kv.Value, 0, kv.Value.Length);");
cw.EndBracket();
cw.EndBracket();
}
cw.EndBracket();
cw.WriteLine();
cw.Summary("Helper: Serialize into a MemoryStream and return its byte array");
cw.Bracket(m.OptionAccess + " static byte[] SerializeToBytes(" + m.CsType + " instance)");
cw.Using("var ms = new MemoryStream()");
cw.WriteLine("Serialize(ms, instance);");
cw.WriteLine("return ms.ToArray();");
cw.EndBracket();
cw.EndBracket();
}
/// <summary>
/// Generates code for writing a class/message
/// </summary>
static void GenerateWriter(ProtoMessage m, CodeWriter cw)
{
cw.Summary("Serialize the instance into the stream");
cw.Bracket(m.OptionAccess + " static void Serialize(CitoStream stream, " + m.FullCsType + " instance)");
if (m.OptionTriggers)
{
cw.WriteLine("instance.BeforeSerialize();");
cw.WriteLine();
}
if (m.IsUsingBinaryWriter)
cw.WriteLine("BinaryWriter bw = new BinaryWriter(stream);");
foreach (Field f in m.Fields.Values)
FieldSerializer.FieldWriter(m, f, cw);
if (m.OptionPreserveUnknown)
{
cw.IfBracket("instance.PreservedFields != null");
cw.ForeachBracket("var kv in instance.PreservedFields");
cw.WriteLine("ProtocolParser.WriteKey(stream, kv.Key);");
cw.WriteLine("stream.Write(kv.Value, 0, kv.Value.Length);");
cw.EndBracket();
cw.EndBracket();
}
cw.EndBracket();
cw.WriteLine();
cw.Summary("Helper: Serialize into a MemoryStream and return its byte array");
cw.Bracket(m.OptionAccess + " static byte[] SerializeToBytes(" + m.FullCsType + " instance)");
cw.WriteLine("CitoMemoryStream ms = new CitoMemoryStream();");
cw.WriteLine("Serialize(ms, instance);");
cw.WriteLine("return ms.ToArray();");
//cw.EndBracket();
cw.EndBracket();
cw.Summary("Helper: Serialize with a varint length prefix");
cw.Bracket(m.OptionAccess + " static void SerializeLengthDelimited(CitoStream stream, " + m.FullCsType + " instance)");
cw.WriteLine("byte[] data = SerializeToBytes(instance);");
cw.WriteLine("ProtocolParser.WriteUInt32_(stream, ProtoPlatform.ArrayLength(data));");
cw.WriteLine("stream.Write(data, 0, ProtoPlatform.ArrayLength(data));");
cw.EndBracket();
}
/// <summary>
/// Generates code for writing one field
/// </summary>
public static void FieldWriter(ProtoMessage m, Field f, CodeWriter cw, Options options)
{
if (f.Rule == FieldRule.Repeated)
{
if (f.OptionPacked == true)
{
//Repeated packed
cw.IfBracket("instance." + f.CsName + " != null");
KeyWriter("stream", f.ID, Wire.LengthDelimited, cw);
if (f.ProtoType.WireSize < 0)
{
//Un-optimized, unknown size
cw.WriteLine("msField.SetLength(0);");
if (f.IsUsingBinaryWriter)
{
cw.WriteLine("BinaryWriter bw" + f.ID + " = new BinaryWriter(ms" + f.ID + ");");
}
cw.ForeachBracket("var i" + f.ID + " in instance." + f.CsName);
cw.WriteLine(FieldWriterType(f, "msField", "bw" + f.ID, "i" + f.ID));
cw.EndBracket();
BytesWriter(f, "stream", cw);
}
else
{
//Optimized with known size
//No memorystream buffering, write size first at once
//For constant size messages we can skip serializing to the MemoryStream
cw.WriteLine("global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteUInt32(stream, " + f.ProtoType.WireSize + "u * (uint)instance." + f.CsName + ".Count);");
cw.ForeachBracket("var i" + f.ID + " in instance." + f.CsName);
cw.WriteLine(FieldWriterType(f, "stream", "bw", "i" + f.ID));
cw.EndBracket();
}
cw.EndBracket();
}
else
{
//Repeated not packet
cw.IfBracket("instance." + f.CsName + " != null");
cw.ForeachBracket("var i" + f.ID + " in instance." + f.CsName);
KeyWriter("stream", f.ID, f.ProtoType.WireType, cw);
cw.WriteLine(FieldWriterType(f, "stream", "bw", "i" + f.ID));
cw.EndBracket();
cw.EndBracket();
}
return;
}
else if (f.Rule == FieldRule.Optional)
{
if (options.Nullable ||
f.ProtoType is ProtoMessage ||
f.ProtoType.ProtoName == ProtoBuiltin.String ||
f.ProtoType.ProtoName == ProtoBuiltin.Bytes)
{
if (f.ProtoType.Nullable || options.Nullable) //Struct always exist, not optional
{
cw.IfBracket("instance." + f.CsName + " != null");
}
KeyWriter("stream", f.ID, f.ProtoType.WireType, cw);
var needValue = !f.ProtoType.Nullable && options.Nullable;
cw.WriteLine(FieldWriterType(f, "stream", "bw", "instance." + f.CsName + (needValue ? ".Value" : "")));
if (f.ProtoType.Nullable || options.Nullable) //Struct always exist, not optional
{
cw.EndBracket();
}
return;
}
if (f.ProtoType is ProtoEnum)
{
if (f.OptionDefault != null)
{
cw.IfBracket("instance." + f.CsName + " != " + f.ProtoType.CsType + "." + f.OptionDefault);
}
KeyWriter("stream", f.ID, f.ProtoType.WireType, cw);
cw.WriteLine(FieldWriterType(f, "stream", "bw", "instance." + f.CsName));
if (f.OptionDefault != null)
{
cw.EndBracket();
}
return;
}
KeyWriter("stream", f.ID, f.ProtoType.WireType, cw);
cw.WriteLine(FieldWriterType(f, "stream", "bw", "instance." + f.CsName));
return;
}
else if (f.Rule == FieldRule.Required)
{
if (f.ProtoType is ProtoMessage && f.ProtoType.OptionType != "struct" ||
f.ProtoType.ProtoName == ProtoBuiltin.String ||
f.ProtoType.ProtoName == ProtoBuiltin.Bytes)
{
cw.WriteLine("if (instance." + f.CsName + " == null)");
cw.WriteIndent("throw new ArgumentNullException(\"" + f.CsName + "\", \"Required by proto specification.\");");
}
KeyWriter("stream", f.ID, f.ProtoType.WireType, cw);
cw.WriteLine(FieldWriterType(f, "stream", "bw", "instance." + f.CsName));
return;
}
throw new NotImplementedException("Unknown rule: " + f.Rule);
}
/// <summary>
/// Generates code for writing one field
/// </summary>
public static void FieldWriter(ProtoMessage m, Field f, CodeWriter cw)
{
if (f.Rule == FieldRule.Repeated)
{
if (f.OptionPacked == true)
{
//Repeated packed
cw.IfBracket("instance." + f.CsName + " != null");
KeyWriter("stream", f.ID, Wire.LengthDelimited, cw);
if (f.ProtoType.WireSize < 0)
{
//Un-optimized, unknown size
cw.Using("var ms" + f.ID + " = new MemoryStream()");
if (f.IsUsingBinaryWriter)
cw.WriteLine("BinaryWriter bw" + f.ID + " = new BinaryWriter(ms" + f.ID + ");");
cw.ForeachBracket("var i" + f.ID + " in instance." + f.CsName);
cw.WriteLine(FieldWriterType(f, "ms" + f.ID, "bw" + f.ID, "i" + f.ID));
cw.EndBracket();
BytesWriter("stream", "ms" + f.ID, cw);
cw.EndBracket();
}
else
{
//Optimized with known size
//No memorystream buffering, write size first at once
//For constant size messages we can skip serializing to the MemoryStream
cw.WriteLine("global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteUInt32(stream, " + f.ProtoType.WireSize + "u * (uint)instance." + f.CsName + ".Count);");
cw.ForeachBracket("var i" + f.ID + " in instance." + f.CsName);
cw.WriteLine(FieldWriterType(f, "stream", "bw", "i" + f.ID));
cw.EndBracket();
}
cw.EndBracket();
}
else
{
//Repeated not packet
cw.IfBracket("instance." + f.CsName + " != null");
cw.ForeachBracket("var i" + f.ID + " in instance." + f.CsName);
KeyWriter("stream", f.ID, f.ProtoType.WireType, cw);
cw.WriteLine(FieldWriterType(f, "stream", "bw", "i" + f.ID));
cw.EndBracket();
cw.EndBracket();
}
return;
}
else if (f.Rule == FieldRule.Optional)
{
if (f.ProtoType is ProtoMessage ||
f.ProtoType.ProtoName == ProtoBuiltin.String ||
f.ProtoType.ProtoName == ProtoBuiltin.Bytes)
{
if (f.ProtoType.Nullable) //Struct always exist, not optional
cw.IfBracket("instance." + f.CsName + " != null");
KeyWriter("stream", f.ID, f.ProtoType.WireType, cw);
cw.WriteLine(FieldWriterType(f, "stream", "bw", "instance." + f.CsName));
if (f.ProtoType.Nullable) //Struct always exist, not optional
cw.EndBracket();
return;
}
if (f.ProtoType is ProtoEnum)
{
if (f.OptionDefault != null)
cw.IfBracket("instance." + f.CsName + " != " + f.ProtoType.CsType + "." + f.OptionDefault);
KeyWriter("stream", f.ID, f.ProtoType.WireType, cw);
cw.WriteLine(FieldWriterType(f, "stream", "bw", "instance." + f.CsName));
if (f.OptionDefault != null)
cw.EndBracket();
return;
}
KeyWriter("stream", f.ID, f.ProtoType.WireType, cw);
cw.WriteLine(FieldWriterType(f, "stream", "bw", "instance." + f.CsName));
return;
}
else if (f.Rule == FieldRule.Required)
{
if (f.ProtoType is ProtoMessage && f.ProtoType.OptionType != "struct" ||
f.ProtoType.ProtoName == ProtoBuiltin.String ||
f.ProtoType.ProtoName == ProtoBuiltin.Bytes)
{
cw.WriteLine("if (instance." + f.CsName + " == null)");
cw.WriteIndent("throw new ArgumentNullException(\"" + f.CsName + "\", \"Required by proto specification.\");");
}
KeyWriter("stream", f.ID, f.ProtoType.WireType, cw);
cw.WriteLine(FieldWriterType(f, "stream", "bw", "instance." + f.CsName));
return;
}
throw new NotImplementedException("Unknown rule: " + f.Rule);
}
/// <summary>
/// Generates code for writing a class/message
/// </summary>
static void GenerateWriter(ProtoMessage m, CodeWriter cw, Options options)
{
cw.WriteLine("#region [Methods] Writer");
#region [Method] Serialize
cw.Summary("Serialize the instance into the stream");
cw.Bracket(m.OptionAccess + " static void Serialize(Stream stream, " + m.CsType + " instance)");
{
if (m.OptionTriggers)
{
cw.WriteLine("instance.BeforeSerialize();");
cw.WriteLine();
}
//Shared memorystream for all fields
cw.WriteLine("var msField = Pool.Get<MemoryStream>();");
foreach (Field f in m.Fields.Values)
{
FieldSerializer.FieldWriter(m, f, cw, false);
}
cw.WriteLine("Pool.FreeMemoryStream(ref msField);");
if (m.OptionPreserveUnknown)
{
cw.IfBracket("instance.PreservedFields != null");
cw.ForeachBracket("var kv in instance.PreservedFields");
cw.WriteLine("global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteKey(stream, kv.Key);");
cw.WriteLine("stream.Write(kv.Value, 0, kv.Value.Length);");
cw.EndBracket();
cw.EndBracket();
}
}
cw.EndBracketSpace();
#endregion
#region [Method] SerializeToBytes
cw.Summary("Helper: Serialize into a MemoryStream and return its byte array");
cw.Bracket(m.OptionAccess + " static byte[] SerializeToBytes(" + m.CsType + " instance)");
{
cw.WriteLine("var ms = Pool.Get<MemoryStream>();");
cw.WriteLine("Serialize(ms, instance);");
cw.WriteLine("var arr = ms.ToArray();");
cw.WriteLine("Pool.FreeMemoryStream(ref ms);");
cw.WriteLine("return arr;");
}
cw.EndBracket();
#endregion
#region [Method] SerializeLengthDelimited
cw.Summary("Helper: Serialize with a varint length prefix");
cw.Bracket(m.OptionAccess + " static void SerializeLengthDelimited(Stream stream, " + m.CsType + " instance)");
{
cw.WriteLine("var data = SerializeToBytes(instance);");
cw.WriteLine("global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteUInt32(stream, (uint)data.Length);");
cw.WriteLine("stream.Write(data, 0, data.Length);");
}
cw.EndBracketSpace();
#endregion
#region [Method] SerializeDelta
cw.Bracket($"public static void SerializeDelta(Stream stream, {m.CsType} instance, {m.CsType} previous)");
{
cw.WriteLine("var msField = Pool.Get<MemoryStream>();");
foreach (Field f in m.Fields.Values)
{
cw.IfBracket($"instance.{f.CsName} != previous.{f.CsName}");
FieldSerializer.FieldWriter(m, f, cw, true);
cw.EndBracket();
}
cw.WriteLine("Pool.FreeMemoryStream(ref msField);");
}
cw.EndBracket();
#endregion
#region [Method] WriteToStream
if (m.OptionExternal == false)
{
cw.Bracket("public void WriteToStream(Stream stream)");
{
cw.WriteLine("Serialize(stream, this);");
}
cw.EndBracket();
}
#endregion
#region [Method] WriteToStreamDelta
if (m.OptionExternal == false)
{
cw.Bracket($"public void WriteToStreamDelta(Stream stream, {m.CsType} previous)");
{
cw.IfBracket("previous != null");
{
cw.WriteLine("SerializeDelta(stream, this, previous);");
}
cw.EndBracket();
cw.Bracket("else");
{
cw.WriteLine("Serialize(stream, this);");
}
cw.EndBracket();
}
cw.EndBracket();
}
#endregion
cw.WriteLine("#endregion");
}
/// <summary>
/// Generates code for writing a class/message
/// </summary>
static void GenerateWriter(ProtoMessage m, CodeWriter cw)
{
cw.Summary("Serialize the instance into the stream");
cw.Bracket(m.OptionAccess + " static void Serialize(Stream stream, " + m.CsType + " instance)");
if (m.OptionTriggers)
{
cw.WriteLine("instance.BeforeSerialize();");
cw.WriteLine();
}
if (m.IsUsingBinaryWriter)
cw.WriteLine("BinaryWriter bw = new BinaryWriter(stream);");
foreach (Field f in m.Fields.Values)
FieldSerializer.FieldWriter(m, f, cw);
if (m.OptionPreserveUnknown)
{
cw.IfBracket("instance.PreservedFields != null");
cw.ForeachBracket("var kv in instance.PreservedFields");
cw.WriteLine("global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteKey(stream, kv.Key);");
cw.WriteLine("stream.Write(kv.Value, 0, kv.Value.Length);");
cw.EndBracket();
cw.EndBracket();
}
cw.EndBracket();
cw.WriteLine();
cw.Summary("Helper: Serialize into a MemoryStream and return its byte array");
cw.Bracket(m.OptionAccess + " static byte[] SerializeToBytes(" + m.CsType + " instance)");
cw.Using("var ms = new MemoryStream()");
cw.WriteLine("Serialize(ms, instance);");
cw.WriteLine("return ms.ToArray();");
cw.EndBracket();
cw.EndBracket();
}
/// <summary>
/// Generates code for writing one field as a JSON string
/// </summary>
public static void FieldJsonWriter(ProtoMessage m, Field f, CodeWriter cw, Options options)
{
cw.WriteLine("writer.Write(\"\\\"" + f.ProtoName + "\\\":\");");
if (f.Rule == FieldRule.Repeated)
{
cw.WriteLine();
cw.IfBracket("instance." + f.CsName + " != null");
cw.WriteLine("writer.Write(\"[\");");
cw.WriteLine("var first = true;");
cw.ForeachBracket("var i" + f.ID + " in instance." + f.CsName);
cw.WriteLine("if (!first) writer.Write(\",\");");
cw.WriteLine("else first = false;");
cw.WriteLine(FieldWriterJsonType(f, m.RequiredMessageTables, "writer", "i" + f.ID));
cw.EndBracket();
cw.WriteLine("writer.Write(\"]\");");
cw.ElseBracket();
cw.WriteLine("writer.Write(\"null\");");
cw.EndBracket();
return;
}
else if (f.Rule == FieldRule.Optional)
{
if (options.Nullable ||
f.ProtoType is ProtoMessage ||
f.ProtoType.ProtoName == ProtoBuiltin.String ||
f.ProtoType.ProtoName == ProtoBuiltin.Bytes)
{
var nullable = (f.ProtoType.Nullable || options.Nullable) && !(f.ProtoType.OptionType == "interface" && m.RequiredMessageTables.Contains(f.ProtoType));
if (nullable) //Struct always exist, not optional
{
cw.IfBracket("instance." + f.CsName + " != null");
}
var needValue = !f.ProtoType.Nullable && options.Nullable;
cw.WriteLine(FieldWriterJsonType(f, m.RequiredMessageTables, "writer", "instance." + f.CsName + (needValue ? ".Value" : "")));
if (nullable) //Struct always exist, not optional
{
cw.ElseBracket();
cw.WriteLine("writer.Write(\"null\");");
cw.EndBracket();
}
return;
}
if (f.ProtoType is ProtoEnum)
{
cw.WriteLine(FieldWriterJsonType(f, m.RequiredMessageTables, "writer", "instance." + f.CsName));
return;
}
cw.WriteLine(FieldWriterJsonType(f, m.RequiredMessageTables, "writer", "instance." + f.CsName));
return;
}
else if (f.Rule == FieldRule.Required)
{
if (f.ProtoType is ProtoMessage && f.ProtoType.OptionType != "struct" ||
f.ProtoType.ProtoName == ProtoBuiltin.String ||
f.ProtoType.ProtoName == ProtoBuiltin.Bytes)
{
cw.WriteLine("if (instance." + f.CsName + " == null)");
cw.WriteIndent("throw new ArgumentNullException(\"" + f.CsName + "\", \"Required by proto specification.\");");
}
cw.WriteLine(FieldWriterJsonType(f, m.RequiredMessageTables, "writer", "instance." + f.CsName));
return;
}
throw new NotImplementedException("Unknown rule: " + f.Rule);
}
public bool JsonFieldReader(Field f, ProtoMessage[] messageTables, string jToken)
{
if (f.Rule == FieldRule.Repeated)
{
//Make sure we are not reading a list of interfaces
if (f.ProtoType.OptionType == "interface" && !messageTables.Contains(f.ProtoType))
{
cw.WriteLine("throw new NotSupportedException(\"Can't deserialize a list of interfaces\");");
return(false);
}
cw.Comment("repeated");
cw.ForeachBracket("var val in ((global::Newtonsoft.Json.Linq.JArray) " + jToken + ")");
cw.WriteLine("instance." + f.CsName + ".Add(" + JsonFieldReaderType(f, messageTables, "val", null) + ");");
cw.EndBracket();
}
else
{
if (f.OptionReadOnly)
{
//The only "readonly" fields we can modify
//We could possibly support bytes primitive too but it would require the incoming length to match the wire length
if (f.ProtoType is ProtoMessage)
{
cw.WriteLine(JsonFieldReaderType(f, messageTables, jToken, "instance." + f.CsName) + ";");
return(true);
}
cw.WriteLine("throw new InvalidOperationException(\"Can't deserialize into a readonly primitive field\");");
return(false);
}
if (f.ProtoType is ProtoMessage)
{
if (f.ProtoType.OptionType == "struct")
{
if (f.OptionUseReferences)
{
cw.WriteLine(JsonFieldReaderType(f, messageTables, jToken, "ref instance." + f.CsName) + ";");
}
else
{
cw.WriteLine("{");
cw.WriteIndent("var a = instance." + f.CsName + ";");
cw.WriteIndent("instance." + f.CsName + " = " + JsonFieldReaderType(f, messageTables, jToken, "ref a") + ";");
cw.WriteLine("}");
}
return(true);
}
cw.WriteLine("if (instance." + f.CsName + " == null)");
if (f.ProtoType.OptionType == "interface" && !messageTables.Contains(f.ProtoType))
{
cw.WriteIndent("throw new InvalidOperationException(\"Can't deserialize into a interfaces null pointer\");");
}
else
{
cw.WriteIndent("instance." + f.CsName + " = " + JsonFieldReaderType(f, messageTables, jToken, null) + ";");
}
cw.WriteLine("else");
cw.WriteIndent(JsonFieldReaderType(f, messageTables, jToken, "instance." + f.CsName) + ";");
return(true);
}
cw.WriteLine("instance." + f.CsName + " = " + JsonFieldReaderType(f, messageTables, jToken, "instance." + f.CsName) + ";");
}
return(true);
}
/// <summary>
/// Generates code for writing a class/message
/// </summary>
void GenerateWriter(ProtoMessage m)
{
string mTableParamDefs, mTableParams;
FindMessageTableParams(m, out mTableParamDefs, out mTableParams);
string stack = "global::SilentOrbit.ProtocolBuffers.ProtocolParser.Stack";
if (options.ExperimentalStack != null)
{
cw.WriteLine("[ThreadStatic]");
cw.WriteLine("static global::SilentOrbit.ProtocolBuffers.MemoryStreamStack stack = new " + options.ExperimentalStack + "();");
stack = "stack";
}
cw.Summary("Serialize the instance into the stream");
cw.Bracket(m.OptionAccess + " static void Serialize(Stream stream, " + m.CsType + " instance" + mTableParamDefs + ")");
if (m.OptionTriggers)
{
cw.WriteLine("instance.BeforeSerialize();");
cw.WriteLine();
}
if (m.IsUsingBinaryWriter)
{
cw.WriteLine("BinaryWriter bw = new BinaryWriter(stream);");
}
//Shared memorystream for all fields
cw.WriteLine("var msField = " + stack + ".Pop();");
foreach (Field f in m.Fields.Values)
{
FieldSerializer.FieldWriter(m, f, cw, options);
}
cw.WriteLine(stack + ".Push(msField);");
if (m.OptionPreserveUnknown)
{
cw.IfBracket("instance.PreservedFields != null");
cw.ForeachBracket("var kv in instance.PreservedFields");
cw.WriteLine("global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteKey(stream, kv.Key);");
cw.WriteLine("stream.Write(kv.Value, 0, kv.Value.Length);");
cw.EndBracket();
cw.EndBracket();
}
cw.EndBracket();
cw.WriteLine();
if (m.OptionType != "interface" && !m.OptionNoPartials)
{
cw.Summary("Serialize and return data as a byte array (use this sparingly)");
cw.Bracket(m.OptionAccess + " byte[] ToProtoBytes(" + mTableParamDefs.TrimStart(',', ' ') + ")");
cw.WriteLine("return SerializeToBytes( this" + mTableParams + " );");
cw.EndBracketSpace();
cw.Summary("Serialize to a Stream");
cw.Bracket(m.OptionAccess + " void ToProto( Stream stream" + mTableParamDefs + " )");
cw.WriteLine("Serialize( stream, this" + mTableParams + " );");
cw.EndBracketSpace();
cw.Summary("Serialize to a JSON string");
cw.Bracket(m.OptionAccess + " string ToJson(" + mTableParamDefs.TrimStart(',', ' ') + ")");
cw.WriteLine("var writer = new global::System.IO.StringWriter();");
cw.WriteLine("SerializeJson(writer, this" + mTableParams + ");");
cw.WriteLine("return writer.ToString();");
cw.EndBracketSpace();
}
cw.Summary("Helper: Serialize into a MemoryStream and return its byte array");
cw.Bracket(m.OptionAccess + " static byte[] SerializeToBytes(" + m.CsType + " instance" + mTableParamDefs + ")");
cw.Using("var ms = new MemoryStream()");
cw.WriteLine("Serialize(ms, instance" + mTableParams + ");");
cw.WriteLine("return ms.ToArray();");
cw.EndBracket();
cw.EndBracket();
cw.Summary("Helper: Serialize with a varint length prefix");
cw.Bracket(m.OptionAccess + " static void SerializeLengthDelimited(Stream stream, " + m.CsType + " instance" + mTableParamDefs + ")");
cw.WriteLine("var data = SerializeToBytes(instance" + mTableParams + ");");
cw.WriteLine("global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteUInt32(stream, (uint)data.Length);");
cw.WriteLine("stream.Write(data, 0, data.Length);");
cw.EndBracket();
cw.Summary("Serialize into a JSON string");
cw.Bracket(m.OptionAccess + " static void SerializeJson(TextWriter writer, " + m.CsType + " instance" + mTableParamDefs + ")");
cw.WriteLine("writer.Write(\"{\");");
var first = true;
foreach (Field f in m.Fields.Values)
{
if (!first)
{
cw.WriteLine("writer.Write(\",\");");
}
else
{
first = false;
}
FieldSerializer.FieldJsonWriter(m, f, cw, options);
}
cw.WriteLine("writer.Write(\"}\");");
cw.EndBracket();
}