static void GenerateEnums(ProtoMessage m, CodeWriter cw)
{
foreach (ProtoEnum me in m.Enums.Values)
{
GenerateEnum(me, cw);
}
}
/// <summary>
/// Generates the properties.
/// </summary>
/// <param name='template'>
/// if true it will generate only properties that are not included by default, because of the [generate=false] option.
/// </param>
static void GenerateProperties(ProtoMessage m, CodeWriter cw)
{
foreach (Field f in m.Fields.Values)
{
if (f.OptionExternal)
cw.WriteLine("//" + GenerateProperty(f) + " // Implemented by user elsewhere");
else
{
if (f.Comments != null)
cw.Summary(f.Comments);
cw.WriteLine(GenerateProperty(f));
cw.WriteLine();
}
}
//Wire format field ID
#if DEBUG
cw.Comment("ProtocolBuffers wire field id");
foreach (Field f in m.Fields.Values)
{
cw.WriteLine("public const int " + f.CsName + "FieldID = " + f.ID + ";");
}
#endif
}
public static void GenerateClassSerializer(ProtoMessage m, CodeWriter cw)
{
if (m.OptionExternal || m.OptionType == "interface")
{
//Don't make partial class of external classes or interfaces
//Make separate static class for them
cw.Bracket(m.OptionAccess + " class " + m.SerializerType);
} else
{
cw.Attribute("System.Serializable()");
cw.Bracket(m.OptionAccess + " partial " + m.OptionType + " " + m.SerializerType);
}
GenerateReader(m, cw);
GenerateWriter(m, cw);
foreach (ProtoMessage sub in m.Messages.Values)
{
cw.WriteLine();
GenerateClassSerializer(sub, cw);
}
cw.EndBracket();
cw.WriteLine();
return;
}
public static void GenerateEnum(ProtoEnum me, CodeWriter cw)
{
cw.Bracket("public enum " + me.CsType);
foreach (var epair in me.Enums)
{
cw.Summary(epair.Comment);
cw.WriteLine(epair.Name + " = " + epair.Value + ",");
}
cw.EndBracket();
cw.WriteLine();
}
public static void GenerateEnum(ProtoEnum me, CodeWriter cw)
{
cw.Bracket("public class " + me.CsNamespace + "_" + me.CsType + "Enum");
foreach (var epair in me.Enums)
{
cw.Summary(epair.Comment);
cw.WriteLine("public const int " + epair.Name + " = " + epair.Value + ";");
}
cw.EndBracket();
cw.WriteLine();
}
public static void GenerateEnum(ProtoEnum me, CodeWriter cw)
{
cw.Bracket("public enum " + me.CsType);
foreach (var epair in me.Enums)
{
if (me.EnumsComments.ContainsKey(epair.Key))
cw.Summary(me.EnumsComments [epair.Key]);
cw.WriteLine(epair.Key + " = " + epair.Value + ",");
}
cw.EndBracket();
cw.WriteLine();
}
public static void GenerateClass(ProtoMessage m, CodeWriter cw, Options options)
{
//Do not generate class code for external classes
if (m.OptionExternal)
{
cw.Comment("Written elsewhere");
cw.Comment(m.OptionAccess + " " + m.OptionType + " " + m.CsType + " {}");
return;
}
//Default class
cw.Summary(m.Comments);
cw.Bracket(m.OptionAccess + " partial " + m.OptionType + " " + m.CsType);
GenerateEnums(m, cw);
GenerateProperties(m, cw);
//if(options.GenerateToString...
// ...
if (m.OptionPreserveUnknown)
{
cw.Summary("Values for unknown fields.");
cw.WriteLine("public List<global::SilentOrbit.ProtocolBuffers.KeyValue> PreservedFields;");
cw.WriteLine();
}
if (m.OptionTriggers)
{
cw.Comment("protected virtual void BeforeSerialize() {}");
cw.Comment("protected virtual void AfterDeserialize() {}");
cw.WriteLine();
}
foreach (ProtoMessage sub in m.Messages.Values)
{
GenerateClass(sub, cw, options);
cw.WriteLine();
}
cw.EndBracket();
return;
}
public static void GenerateClass(ProtoMessage m, CodeWriter cw)
{
//Do not generate class code for external classes
/*if (m.OptionExternal)
{
cw.Comment("Written elsewhere");
cw.Comment(m.OptionAccess + " " + m.OptionType + " " + m.CsNamespace + "_" + m.CsType + " {}");
return;
}*/
//Default class
cw.Summary(m.Comments);
cw.Bracket(m.OptionAccess + " " + m.OptionType + " " + m.CsNamespace + "_" + m.CsType);
GenerateEnums(m, cw);
GenerateProperties(m, cw);
if (m.OptionPreserveUnknown)
{
cw.Summary("Values for unknown fields.");
cw.WriteLine("public List<KeyValue> PreservedFields;");
cw.WriteLine();
}
if (m.OptionTriggers)
{
cw.Comment("protected virtual void BeforeSerialize() {}");
cw.Comment("protected virtual void AfterDeserialize() {}");
cw.WriteLine();
}
foreach (ProtoMessage sub in m.Messages.Values)
{
GenerateClass(sub, cw);
cw.WriteLine();
}
cw.EndBracket();
return;
}
/// <summary>
/// Generates inline writer of a length delimited byte array
/// </summary>
static void BytesWriter(string stream, string memoryStream, CodeWriter cw)
{
cw.Comment("Length delimited byte array");
//Original
//cw.WriteLine("ProtocolParser.WriteBytes(" + stream + ", " + memoryStream + ".ToArray());");
//Much slower than original
/*
cw.WriteLine("ProtocolParser.WriteUInt32(" + stream + ", (uint)" + memoryStream + ".Length);");
cw.WriteLine(memoryStream + ".Seek(0, System.IO.SeekOrigin.Begin);");
cw.WriteLine(memoryStream + ".CopyTo(" + stream + ");");
*/
//Same speed as original
/*
cw.WriteLine("ProtocolParser.WriteUInt32(" + stream + ", (uint)" + memoryStream + ".Length);");
cw.WriteLine(stream + ".Write(" + memoryStream + ".ToArray(), 0, (int)" + memoryStream + ".Length);");
*/
//10% faster than original using GetBuffer rather than ToArray
cw.WriteLine("uint " + memoryStream + "Length = (uint)" + memoryStream + ".Length;");
cw.WriteLine("global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteUInt32(" + stream + ", " + memoryStream + "Length);");
cw.WriteLine(stream + ".Write(" + memoryStream + ".GetBuffer(), 0, (int)" + memoryStream + "Length);");
}
static string FieldWriterPrimitive(Field f, string stream, string binaryWriter, string instance)
{
if (f.ProtoType is ProtoEnum)
return "global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteUInt64(" + stream + ",(ulong)" + instance + ");";
if (f.ProtoType is ProtoMessage)
{
ProtoMessage pm = f.ProtoType as ProtoMessage;
CodeWriter cw = new CodeWriter();
cw.Using("var ms" + f.ID + " = new MemoryStream()");
cw.WriteLine(pm.FullSerializerType + ".Serialize(ms" + f.ID + ", " + instance + ");");
BytesWriter(stream, "ms" + f.ID, cw);
cw.EndBracket();
return cw.Code;
}
switch (f.ProtoType.ProtoName)
{
case ProtoBuiltin.Double:
case ProtoBuiltin.Float:
case ProtoBuiltin.Fixed32:
case ProtoBuiltin.Fixed64:
case ProtoBuiltin.SFixed32:
case ProtoBuiltin.SFixed64:
return binaryWriter + ".Write(" + instance + ");";
case ProtoBuiltin.Int32: //Serialized as 64 bit varint
return "global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteUInt64(" + stream + ",(ulong)" + instance + ");";
case ProtoBuiltin.Int64:
return "global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteUInt64(" + stream + ",(ulong)" + instance + ");";
case ProtoBuiltin.UInt32:
return "global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteUInt32(" + stream + ", " + instance + ");";
case ProtoBuiltin.UInt64:
return "global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteUInt64(" + stream + ", " + instance + ");";
case ProtoBuiltin.SInt32:
return "global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteZInt32(" + stream + ", " + instance + ");";
case ProtoBuiltin.SInt64:
return "global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteZInt64(" + stream + ", " + instance + ");";
case ProtoBuiltin.Bool:
return "global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteBool(" + stream + ", " + instance + ");";
case ProtoBuiltin.String:
return "global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteBytes(" + stream + ", Encoding.UTF8.GetBytes(" + instance + "));";
case ProtoBuiltin.Bytes:
return "global::SilentOrbit.ProtocolBuffers.ProtocolParser.WriteBytes(" + stream + ", " + instance + ");";
}
throw new NotImplementedException();
}
public FieldSerializer(CodeWriter cw, Options options)
{
this.cw = cw;
this.options = options;
}
/// <summary>
/// Return true for normal code and false for generated throw.
/// In the later case a break is not needed to be generated afterwards.
/// </summary>
public static bool FieldReader(Field f, CodeWriter cw)
{
if (f.Rule == FieldRule.Repeated)
{
//Make sure we are not reading a list of interfaces
if (f.ProtoType.OptionType == "interface")
{
cw.WriteLine("throw new InvalidOperationException(\"Can't deserialize a list of interfaces\");");
return false;
}
if (f.OptionPacked == true)
{
//TODO: read without buffering
cw.Comment("repeated packed");
cw.Using("var ms" + f.ID + " = new MemoryStream(global::SilentOrbit.ProtocolBuffers.ProtocolParser.ReadBytes(stream))");
if (f.IsUsingBinaryWriter)
cw.WriteLine("BinaryReader br" + f.ID + " = new BinaryReader(ms" + f.ID + ");");
cw.WhileBracket("ms" + f.ID + ".Position < ms" + f.ID + ".Length");
cw.WriteLine("instance." + f.CsName + ".Add(" + FieldReaderType(f, "ms" + f.ID, "br" + f.ID, null) + ");");
cw.EndBracket();
cw.EndBracket();
}
else
{
cw.Comment("repeated");
cw.WriteLine("instance." + f.CsName + ".Add(" + FieldReaderType(f, "stream", "br", null) + ");");
}
}
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(FieldReaderType(f, "stream", "br", "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")
{
cw.WriteLine(FieldReaderType(f, "stream", "br", "ref instance." + f.CsName) + ";");
return true;
}
cw.WriteLine("if (instance." + f.CsName + " == null)");
if (f.ProtoType.OptionType == "interface")
cw.WriteIndent("throw new InvalidOperationException(\"Can't deserialize into a interfaces null pointer\");");
else
cw.WriteIndent("instance." + f.CsName + " = " + FieldReaderType(f, "stream", "br", null) + ";");
cw.WriteLine("else");
cw.WriteIndent(FieldReaderType(f, "stream", "br", "instance." + f.CsName) + ";");
return true;
}
cw.WriteLine("instance." + f.CsName + " = " + FieldReaderType(f, "stream", "br", "instance." + f.CsName) + ";");
}
return true;
}
public MessageCode(CodeWriter cw, Options options)
{
this.cw = cw;
this.options = options;
}
void FieldWriterType(Field f, string stream, string binaryWriter, string instance, CodeWriter cw)
{
if (f.OptionCodeType != null)
{
switch (f.OptionCodeType)
{
case "DateTime":
if (options.Utc)
{
cw.WriteLine(FieldWriterPrimitive(f, stream, binaryWriter, "(" + instance + ".Kind == DateTimeKind.Utc ? " + instance + " : " + instance + ".ToUniversalTime()).Ticks"));
}
else
{
cw.WriteLine(FieldWriterPrimitive(f, stream, binaryWriter, instance + ".Ticks"));
}
return;
case "TimeSpan":
cw.WriteLine(FieldWriterPrimitive(f, stream, binaryWriter, instance + ".Ticks"));
return;
default: //enum
break;
}
}
cw.WriteLine(FieldWriterPrimitive(f, stream, binaryWriter, instance));
return;
}
public MessageSerializer(CodeWriter cw, Options options)
{
this.cw = cw;
this.options = options;
this.fieldSerializer = new FieldSerializer(cw, options);
}
static void GenerateReader(ProtoMessage m, CodeWriter cw)
{
#region Helper Deserialize Methods
string refstr = (m.OptionType == "struct") ? "ref " : "";
if (m.OptionType != "interface")
{
cw.Summary("Helper: create a new instance to deserializing into");
cw.Bracket(m.OptionAccess + " static " + m.CsType + " Deserialize(Stream stream)");
cw.WriteLine(m.CsType + " instance = new " + m.CsType + "();");
cw.WriteLine("Deserialize(stream, " + refstr + "instance);");
cw.WriteLine("return instance;");
cw.EndBracketSpace();
cw.Summary("Helper: create a new instance to deserializing into");
cw.Bracket(m.OptionAccess + " static " + m.CsType + " DeserializeLengthDelimited(Stream stream)");
cw.WriteLine(m.CsType + " instance = new " + m.CsType + "();");
cw.WriteLine("DeserializeLengthDelimited(stream, " + refstr + "instance);");
cw.WriteLine("return instance;");
cw.EndBracketSpace();
cw.Summary("Helper: create a new instance to deserializing into");
cw.Bracket(m.OptionAccess + " static " + m.CsType + " DeserializeLength(Stream stream, int length)");
cw.WriteLine(m.CsType + " instance = new " + m.CsType + "();");
cw.WriteLine("DeserializeLength(stream, length, " + refstr + "instance);");
cw.WriteLine("return instance;");
cw.EndBracketSpace();
cw.Summary("Helper: put the buffer into a MemoryStream and create a new instance to deserializing into");
cw.Bracket(m.OptionAccess + " static " + m.CsType + " Deserialize(byte[] buffer)");
cw.WriteLine(m.CsType + " instance = new " + m.CsType + "();");
cw.WriteLine("using (var ms = new MemoryStream(buffer))");
cw.WriteIndent("Deserialize(ms, " + refstr + "instance);");
cw.WriteLine("return instance;");
cw.EndBracketSpace();
}
cw.Summary("Helper: put the buffer into a MemoryStream before deserializing");
cw.Bracket(m.OptionAccess + " static " + m.FullCsType + " Deserialize(byte[] buffer, " + refstr + m.FullCsType + " instance)");
cw.WriteLine("using (var ms = new MemoryStream(buffer))");
cw.WriteIndent("Deserialize(ms, " + refstr + "instance);");
cw.WriteLine("return instance;");
cw.EndBracketSpace();
#endregion
string[] methods = new string[]
{
"Deserialize", //Default old one
"DeserializeLengthDelimited", //Start by reading length prefix and stay within that limit
"DeserializeLength", //Read at most length bytes given by argument
};
//Main Deserialize
foreach (string method in methods)
{
if (method == "Deserialize")
{
cw.Summary("Takes the remaining content of the stream and deserialze it into the instance.");
cw.Bracket(m.OptionAccess + " static " + m.FullCsType + " " + method + "(Stream stream, " + refstr + m.FullCsType + " instance)");
}
else if (method == "DeserializeLengthDelimited")
{
cw.Summary("Read the VarInt length prefix and the given number of bytes from the stream and deserialze it into the instance.");
cw.Bracket(m.OptionAccess + " static " + m.FullCsType + " " + method + "(Stream stream, " + refstr + m.FullCsType + " instance)");
}
else if (method == "DeserializeLength")
{
cw.Summary("Read the given number of bytes from the stream and deserialze it into the instance.");
cw.Bracket(m.OptionAccess + " static " + m.FullCsType + " " + method + "(Stream stream, int length, " + refstr + m.FullCsType + " instance)");
}
else
{
throw new NotImplementedException();
}
if (m.IsUsingBinaryWriter)
{
cw.WriteLine("BinaryReader br = new BinaryReader(stream);");
}
//Prepare List<> and default values
foreach (Field f in m.Fields.Values)
{
if (f.Rule == FieldRule.Repeated)
{
cw.WriteLine("if (instance." + f.CsName + " == null)");
cw.WriteIndent("instance." + f.CsName + " = new List<" + f.ProtoType.FullCsType + ">();");
}
else if (f.OptionDefault != null)
{
if (f.ProtoType is ProtoEnum)
{
cw.WriteLine("instance." + f.CsName + " = " + f.ProtoType.FullCsType + "." + f.OptionDefault + ";");
}
else
{
cw.WriteLine("instance." + f.CsName + " = " + f.OptionDefault + ";");
}
}
else if (f.Rule == FieldRule.Optional)
{
if (f.ProtoType is ProtoEnum)
{
ProtoEnum pe = f.ProtoType as ProtoEnum;
//the default value is the first value listed in the enum's type definition
foreach (var kvp in pe.Enums)
{
cw.WriteLine("instance." + f.CsName + " = " + pe.FullCsType + "." + kvp.Name + ";");
break;
}
}
}
}
if (method == "DeserializeLengthDelimited")
{
//Important to read stream position after we have read the length field
cw.WriteLine("long limit = global::SilentOrbit.ProtocolBuffers.ProtocolParser.ReadUInt32(stream);");
cw.WriteLine("limit += stream.Position;");
}
if (method == "DeserializeLength")
{
//Important to read stream position after we have read the length field
cw.WriteLine("long limit = stream.Position + length;");
}
cw.WhileBracket("true");
if (method == "DeserializeLengthDelimited" || method == "DeserializeLength")
{
cw.IfBracket("stream.Position >= limit");
cw.WriteLine("if (stream.Position == limit)");
cw.WriteIndent("break;");
cw.WriteLine("else");
cw.WriteIndent("throw new InvalidOperationException(\"Read past max limit\");");
cw.EndBracket();
}
cw.WriteLine("int keyByte = stream.ReadByte();");
cw.WriteLine("if (keyByte == -1)");
if (method == "Deserialize")
{
cw.WriteIndent("break;");
}
else
{
cw.WriteIndent("throw new System.IO.EndOfStreamException();");
}
//Determine if we need the lowID optimization
bool hasLowID = false;
foreach (Field f in m.Fields.Values)
{
if (f.ID < 16)
{
hasLowID = true;
break;
}
}
if (hasLowID)
{
cw.Comment("Optimized reading of known fields with field ID < 16");
cw.Switch("keyByte");
foreach (Field f in m.Fields.Values)
{
if (f.ID >= 16)
{
continue;
}
cw.Dedent();
cw.Comment("Field " + f.ID + " " + f.WireType);
cw.Indent();
cw.Case(((f.ID << 3) | (int)f.WireType));
if (FieldSerializer.FieldReader(f, cw))
{
cw.WriteLine("continue;");
}
}
cw.SwitchEnd();
cw.WriteLine();
}
cw.WriteLine("var key = global::SilentOrbit.ProtocolBuffers.ProtocolParser.ReadKey((byte)keyByte, stream);");
cw.WriteLine();
cw.Comment("Reading field ID > 16 and unknown field ID/wire type combinations");
cw.Switch("key.Field");
cw.Case(0);
cw.WriteLine("throw new InvalidDataException(\"Invalid field id: 0, something went wrong in the stream\");");
foreach (Field f in m.Fields.Values)
{
if (f.ID < 16)
{
continue;
}
cw.Case(f.ID);
//Makes sure we got the right wire type
cw.WriteLine("if(key.WireType != global::SilentOrbit.ProtocolBuffers.Wire." + f.WireType + ")");
cw.WriteIndent("break;"); //This can be changed to throw an exception for unknown formats.
if (FieldSerializer.FieldReader(f, cw))
{
cw.WriteLine("continue;");
}
}
cw.CaseDefault();
if (m.OptionPreserveUnknown)
{
cw.WriteLine("if (instance.PreservedFields == null)");
cw.WriteIndent("instance.PreservedFields = new List<global::SilentOrbit.ProtocolBuffers.KeyValue>();");
cw.WriteLine("instance.PreservedFields.Add(new global::SilentOrbit.ProtocolBuffers.KeyValue(key, global::SilentOrbit.ProtocolBuffers.ProtocolParser.ReadValueBytes(stream, key)));");
}
else
{
cw.WriteLine("global::SilentOrbit.ProtocolBuffers.ProtocolParser.SkipKey(stream, key);");
}
cw.WriteLine("break;");
cw.SwitchEnd();
cw.EndBracket();
cw.WriteLine();
if (m.OptionTriggers)
{
cw.WriteLine("instance.AfterDeserialize();");
}
cw.WriteLine("return instance;");
cw.EndBracket();
cw.WriteLine();
}
return;
}
static void GenerateReader(ProtoMessage m, CodeWriter cw)
{
#region Helper Deserialize Methods
string refstr = (m.OptionType == "struct") ? "ref " : "";
if (m.OptionType != "interface")
{/*
cw.Summary("Helper: create a new instance to deserializing into");
cw.Bracket(m.OptionAccess + " static " + m.FullCsType + " Deserialize(CitoStream stream)");
cw.WriteLine(m.FullCsType + " instance = new " + m.FullCsType + "();");
cw.WriteLine("Deserialize(stream, " + refstr + "instance);");
cw.WriteLine("return instance;");
cw.EndBracketSpace();
*/
cw.Summary("Helper: create a new instance to deserializing into");
cw.Bracket(m.OptionAccess + " static " + m.FullCsType + " DeserializeLengthDelimitedNew(CitoStream stream)");
cw.WriteLine(m.FullCsType + " instance = new " + m.FullCsType + "();");
cw.WriteLine("DeserializeLengthDelimited(stream, " + refstr + "instance);");
cw.WriteLine("return instance;");
cw.EndBracketSpace();
/*
cw.Summary("Helper: create a new instance to deserializing into");
cw.Bracket(m.OptionAccess + " static " + m.FullCsType + " DeserializeLength(CitoStream stream, int length)");
cw.WriteLine(m.FullCsType + " instance = new " + m.FullCsType + "();");
cw.WriteLine("DeserializeLength(stream, length, " + refstr + "instance);");
cw.WriteLine("return instance;");
cw.EndBracketSpace();
cw.Summary("Helper: put the buffer into a MemoryStream and create a new instance to deserializing into");
cw.Bracket(m.OptionAccess + " static " + m.FullCsType + " Deserialize(byte[] buffer, int length)");
cw.WriteLine(m.FullCsType + " instance = new " + m.FullCsType + "();");
cw.WriteLine("CitoMemoryStream ms = CitoMemoryStream.Create(buffer, length);");
cw.WriteIndent("Deserialize(ms, " + refstr + "instance);");
cw.WriteLine("return instance;");
cw.EndBracketSpace();*/
}
cw.Summary("Helper: put the buffer into a MemoryStream before deserializing");
cw.Bracket(m.OptionAccess + " static " + m.FullCsType + " DeserializeBuffer(byte[] buffer, int length, " + refstr + m.FullCsType + " instance)");
cw.WriteLine("CitoMemoryStream ms = CitoMemoryStream.Create(buffer, length);");
cw.WriteIndent("Deserialize(ms, " + refstr + "instance);");
cw.WriteLine("return instance;");
cw.EndBracketSpace();
#endregion
string[] methods = new string[]
{
"Deserialize", //Default old one
"DeserializeLengthDelimited", //Start by reading length prefix and stay within that limit
"DeserializeLength", //Read at most length bytes given by argument
};
//Main Deserialize
foreach (string method in methods)
{
if (method == "Deserialize")
{
cw.Summary("Takes the remaining content of the stream and deserialze it into the instance.");
cw.Bracket(m.OptionAccess + " static " + m.FullCsType + " " + method + "(CitoStream stream, " + refstr + m.FullCsType + " instance)");
} else if (method == "DeserializeLengthDelimited")
{
cw.Summary("Read the VarInt length prefix and the given number of bytes from the stream and deserialze it into the instance.");
cw.Bracket(m.OptionAccess + " static " + m.FullCsType + " " + method + "(CitoStream stream, " + refstr + m.FullCsType + " instance)");
} else if (method == "DeserializeLength")
{
cw.Summary("Read the given number of bytes from the stream and deserialze it into the instance.");
cw.Bracket(m.OptionAccess + " static " + m.FullCsType + " " + method + "(CitoStream stream, int length, " + refstr + m.FullCsType + " instance)");
} else
throw new NotImplementedException();
if (m.IsUsingBinaryWriter)
cw.WriteLine("BinaryReader br = new BinaryReader(stream);");
//Prepare List<> and default values
foreach (Field f in m.Fields.Values)
{
if (f.Rule == FieldRule.Repeated)
{
cw.WriteLine("if (instance." + f.CsName + " == null)");
cw.WriteLine("{");
cw.WriteIndent("instance." + f.CsName + " = new " + f.ProtoType.FullCsType + "[1];");
cw.WriteIndent("instance." + f.CsName + "Count = 0;");
cw.WriteIndent("instance." + f.CsName + "Length = 1;");
cw.WriteLine("}");
} else if (f.OptionDefault != null)
{
if (f.ProtoType is ProtoEnum)
cw.WriteLine("instance." + f.CsName + " = " + f.ProtoType.FullCsType + "Enum." + f.OptionDefault + ";");
else
cw.WriteLine("instance." + f.CsName + " = " + f.OptionDefault + ";");
} else if (f.Rule == FieldRule.Optional)
{
if (f.ProtoType is ProtoEnum)
{
ProtoEnum pe = f.ProtoType as ProtoEnum;
//the default value is the first value listed in the enum's type definition
foreach (var kvp in pe.Enums)
{
cw.WriteLine("instance." + f.CsName + " = " + pe.FullCsType + "_" + kvp.Name + ";");
break;
}
}
}
}
if (method == "DeserializeLengthDelimited")
{
//Important to read stream position after we have read the length field
cw.WriteLine("int limit = ProtocolParser.ReadUInt32(stream);");
cw.WriteLine("limit += stream.Position();");
}
if (method == "DeserializeLength")
{
//Important to read stream position after we have read the length field
cw.WriteLine("int limit = stream.Position() + length;");
}
cw.WhileBracket("true");
if (method == "DeserializeLengthDelimited" || method == "DeserializeLength")
{
cw.IfBracket("stream.Position() >= limit");
cw.WriteLine("if(stream.Position() == limit)");
cw.WriteIndent("break;");
cw.WriteLine("else");
cw.WriteIndent("//throw new InvalidOperationException(\"Read past max limit\");");
cw.WriteIndent("return null;");
cw.EndBracket();
}
cw.WriteLine("int keyByte = stream.ReadByte();");
cw.WriteLine("if (keyByte == -1)");
if (method == "Deserialize")
cw.WriteIndent("break;");
else
{
cw.WriteIndent("//throw new System.IO.EndOfStreamException();");
cw.WriteIndent("return null;");
}
//Determine if we need the lowID optimization
bool hasLowID = false;
foreach (Field f in m.Fields.Values)
{
if (f.ID < 16)
{
hasLowID = true;
break;
}
}
if (hasLowID)
{
cw.Comment("Optimized reading of known fields with field ID < 16");
cw.Switch("keyByte");
foreach (Field f in m.Fields.Values)
{
if (f.ID >= 16)
continue;
cw.Comment("Field " + f.ID + " " + f.WireType);
cw.Case(((f.ID << 3) | (int)f.WireType));
if (FieldSerializer.FieldReader(f, cw))
cw.WriteLine("continue;");
}
cw.WriteLine("default: break;");
cw.EndBracket();
cw.WriteLine();
}
cw.WriteLine("#if CITO\n Key key = ProtocolParser.ReadKey_(keyByte.LowByte, stream);");
cw.WriteLine("#else\n Key key = ProtocolParser.ReadKey_((byte)keyByte, stream);\n#endif");
cw.WriteLine();
cw.Comment("Reading field ID > 16 and unknown field ID/wire type combinations");
cw.Switch("key.GetField()");
cw.Case(0);
cw.WriteLine("//throw new InvalidDataException(\"Invalid field id: 0, something went wrong in the stream\");");
cw.WriteLine("return null;");
foreach (Field f in m.Fields.Values)
{
if (f.ID < 16)
continue;
cw.Case(f.ID);
//Makes sure we got the right wire type
cw.WriteLine("if(key.GetWireType() != Wire." + f.WireType + ")");
cw.WriteIndent("break;"); //This can be changed to throw an exception for unknown formats.
if (FieldSerializer.FieldReader(f, cw))
cw.WriteLine("continue;");
}
cw.CaseDefault();
if (m.OptionPreserveUnknown)
{
cw.WriteLine("if (instance.PreservedFields == null)");
cw.WriteIndent("instance.PreservedFields = new List<KeyValue>();");
cw.WriteLine("instance.PreservedFields.Add(new KeyValue(key, ProtocolParser.ReadValueBytes(stream, key)));");
} else
{
cw.WriteLine("ProtocolParser.SkipKey(stream, key);");
}
cw.WriteLine("break;");
cw.EndBracket();
cw.EndBracket();
cw.WriteLine();
if (m.OptionTriggers)
cw.WriteLine("instance.AfterDeserialize();");
cw.WriteLine("return instance;");
cw.EndBracket();
cw.WriteLine();
}
return;
}
/// <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);
}
static void KeyWriter(string stream, int id, Wire wire, CodeWriter cw)
{
uint n = ((uint)id << 3) | ((uint)wire);
cw.Comment("Key for field: " + id + ", " + wire);
//cw.WriteLine("ProtocolParser.WriteUInt32(" + stream + ", " + n + ");");
VarintWriter(stream, n, cw);
}
/// <summary>
/// Return true for normal code and false if generated thrown exception.
/// In the latter case a break is not needed to be generated afterwards.
/// </summary>
public static bool FieldReader(Field f, CodeWriter cw)
{
if (f.Rule == FieldRule.Repeated)
{
//Make sure we are not reading a list of interfaces
if (f.ProtoType.OptionType == "interface")
{
cw.WriteLine("throw new NotSupportedException(\"Can't deserialize a list of interfaces\");");
return(false);
}
if (f.OptionPacked == true)
{
cw.Comment("repeated packed");
cw.WriteLine("long end" + f.ID + " = global::SilentOrbit.ProtocolBuffers.ProtocolParser.ReadUInt32(stream);");
cw.WriteLine("end" + f.ID + " += stream.Position;");
cw.WhileBracket("stream.Position < end" + f.ID);
cw.WriteLine("instance." + f.CsName + ".Add(" + FieldReaderType(f, "stream", "br", null) + ");");
cw.EndBracket();
cw.WriteLine("if (stream.Position != end" + f.ID + ")");
cw.WriteIndent("throw new global::SilentOrbit.ProtocolBuffers.ProtocolBufferException(\"Read too many bytes in packed data\");");
}
else
{
cw.Comment("repeated");
cw.WriteLine("instance." + f.CsName + ".Add(" + FieldReaderType(f, "stream", "br", null) + ");");
}
}
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(FieldReaderType(f, "stream", "br", "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")
{
cw.WriteLine(FieldReaderType(f, "stream", "br", "ref instance." + f.CsName) + ";");
return(true);
}
cw.WriteLine("if (instance." + f.CsName + " == null)");
if (f.ProtoType.OptionType == "interface")
{
cw.WriteIndent("throw new InvalidOperationException(\"Can't deserialize into a interfaces null pointer\");");
}
else
{
cw.WriteIndent("instance." + f.CsName + " = " + FieldReaderType(f, "stream", "br", null) + ";");
}
cw.WriteLine("else");
cw.WriteIndent(FieldReaderType(f, "stream", "br", "instance." + f.CsName) + ";");
return(true);
}
cw.WriteLine("instance." + f.CsName + " = " + FieldReaderType(f, "stream", "br", "instance." + f.CsName) + ";");
}
return(true);
}
/// <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.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 (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 writer for a varint value known at compile time
/// </summary>
static void VarintWriter(string stream, uint value, CodeWriter cw)
{
List<byte> bytes = new List<byte>();
while (true)
{
byte b = (byte)(value & 0x7F);
value = value >> 7;
if (value == 0)
{
bytes.Add(b);
break;
}
//Write part of value
b |= 0x80;
bytes.Add(b);
}
//Write final byte
if (bytes.Count == 1)
{
cw.WriteLine(stream + ".WriteByte(" + bytes[0] + ");");
return;
}
string line = stream + ".Write(new byte[]{";
foreach (byte v in bytes)
line += v + ", ";
line = line.TrimEnd(new char[] { ' ', ',' });
line += "}, 0, " + bytes.Count + ");";
cw.WriteLine(line);
}
/// <summary>
/// Generates the properties.
/// </summary>
/// <param name='template'>
/// if true it will generate only properties that are not included by default, because of the [generate=false] option.
/// </param>
static void GenerateProperties(ProtoMessage m, CodeWriter cw)
{
foreach (Field f in m.Fields.Values)
{
if (f.OptionExternal)
cw.WriteLine("//" + GenerateProperty(f) + " // Implemented by user elsewhere");
else
{
if (f.Comments != null)
cw.Summary(f.Comments);
cw.WriteLine(GenerateProperty(f));
cw.WriteLine();
}
}
// Implement ToString
cw.Bracket("public override string ToString()");
string returnStatement = "return \"\"";
Dictionary<int, Field>.ValueCollection fields = m.Fields.Values;
if (fields.Count > 0)
{
List<string> fieldElements = new List<string>();
foreach (Field f in fields)
{
string fieldHeaderCode = "\"" + f.CsName + ": \" + ";
string fieldToStringCode;
string fieldCommaCode = " + \", \"";
if (f.Rule == FieldRule.Optional && f.ProtoType.Nullable)
{
// Hide optional nullable fields: this makes logging cleaner for union types
fieldToStringCode = string.Format("({0} != null ? {1}{0}{2}: \"\")", f.CsName, fieldHeaderCode, fieldCommaCode);
}
else if (f.Rule == FieldRule.Repeated && f.ProtoTypeName == "bytes")
{
// Always output repeated fields with []
fieldToStringCode = string.Format("{1}\"[\" + ({0} != null ? string.Join(\", \", {0}.ConvertAll<string>(o => o != null ? BitConverter.ToString(o) : \"\").ToArray()) : \"\") + \"]\"{2}", f.CsName, fieldHeaderCode, fieldCommaCode);
}
else if (f.Rule == FieldRule.Repeated)
{
// Always output repeated fields with []
fieldToStringCode = string.Format("{1}\"[\" + ({0} != null ? string.Join(\", \", {0}.ConvertAll<string>(o => o.ToString()).ToArray()) : \"\") + \"]\"{2}", f.CsName, fieldHeaderCode, fieldCommaCode);
}
else if (f.ProtoTypeName == "bytes")
{
// Special code to output bytes
fieldToStringCode = string.Format("{1}\"[\" + ({0} != null ? BitConverter.ToString({0}) : \"\") + \"]\"{2}", f.CsName, fieldHeaderCode, fieldCommaCode);
}
else
{
fieldToStringCode = fieldHeaderCode + f.CsName + fieldCommaCode;
}
fieldElements.Add(fieldToStringCode);
}
returnStatement = "return " + string.Join(" + \n", fieldElements) + ";";
}
cw.WriteLine(returnStatement);
cw.EndBracket();
//Wire format field ID
#if DEBUG
cw.Comment("ProtocolBuffers wire field id");
foreach (Field f in m.Fields.Values)
{
cw.WriteLine("public const int " + f.CsName + "FieldID = " + f.ID + ";");
}
#endif
}
/// <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>
/// Generate code for reading and writing protocol buffer messages
/// </summary>
public static void Save(ProtoCollection file, string csPath)
{
string ext = Path.GetExtension(csPath);
string prefix = csPath.Substring(0, csPath.Length - ext.Length);
string csDir = Path.GetDirectoryName(csPath);
if (Directory.Exists(csDir) == false)
Directory.CreateDirectory(csDir);
//Basic structures
using (var cw = new CodeWriter(csPath))
{
cw.Comment(@"Classes and structures being serialized");
cw.WriteLine();
cw.Comment(@"Generated by ProtocolBuffer
- a pure c# code generation implementation of protocol buffers
Report bugs to: https://silentorbit.com/protobuf/");
cw.WriteLine();
cw.Comment(@"DO NOT EDIT
This file will be overwritten when CodeGenerator is run.
To make custom modifications, edit the .proto file and add //:external before the message line
then write the code and the changes in a separate file.");
cw.WriteLine("using System;");
cw.WriteLine("using System.Collections.Generic;");
cw.WriteLine();
string ns = null; //avoid writing namespace between classes if they belong to the same
foreach (ProtoMessage m in file.Messages.Values)
{
if (ns != m.CsNamespace)
{
if (ns != null) //First time
cw.EndBracket();
cw.Bracket("namespace " + m.CsNamespace);
ns = m.CsNamespace;
}
MessageCode.GenerateClass(m, cw);
cw.WriteLine();
}
foreach (ProtoEnum e in file.Enums.Values)
{
if (ns != e.CsNamespace)
{
if (ns != null) //First time
cw.EndBracket();
cw.Bracket("namespace " + e.CsNamespace);
ns = e.CsNamespace;
}
MessageCode.GenerateEnum(e, cw);
cw.WriteLine();
}
cw.EndBracket();
}
//.Serializer.cs
//Code for Reading/Writing
using (var cw = new CodeWriter(prefix + ".Serializer" + ext))
{
cw.Comment(@"This is the backend code for reading and writing");
cw.WriteLine();
cw.Comment(@"Generated by ProtocolBuffer
- a pure c# code generation implementation of protocol buffers
Report bugs to: https://silentorbit.com/protobuf/");
cw.WriteLine();
cw.Comment(@"DO NOT EDIT
This file will be overwritten when CodeGenerator is run.");
cw.WriteLine("using System;");
cw.WriteLine("using System.IO;");
cw.WriteLine("using System.Text;");
cw.WriteLine("using System.Collections.Generic;");
cw.WriteLine();
string ns = null; //avoid writing namespace between classes if they belong to the same
foreach (ProtoMessage m in file.Messages.Values)
{
if (ns != m.CsNamespace)
{
if (ns != null) //First time
cw.EndBracket();
cw.Bracket("namespace " + m.CsNamespace);
ns = m.CsNamespace;
}
MessageSerializer.GenerateClassSerializer(m, cw);
}
cw.EndBracket();
}
string libPath = Path.Combine(Path.GetDirectoryName(csPath), "ProtocolParser.cs");
using (TextWriter codeWriter = new StreamWriter(libPath, false, Encoding.UTF8))
{
codeWriter.NewLine = "\r\n";
ReadCode(codeWriter, "ProtocolParser", true);
ReadCode(codeWriter, "ProtocolParserFixed", false);
ReadCode(codeWriter, "ProtocolParserKey", false);
ReadCode(codeWriter, "ProtocolParserVarInt", false);
}
}
/// <summary>
/// Generate code for reading and writing protocol buffer messages
/// </summary>
public static void Save(ProtoCollection file, Options options)
{
string csPath = options.OutputPath;
CodeWriter.DefaultIndentPrefix = options.UseTabs ? "\t" : " ";
string ext = Path.GetExtension(csPath);
string prefix = csPath.Substring(0, csPath.Length - ext.Length);
string csDir = Path.GetDirectoryName(csPath);
if (Directory.Exists(csDir) == false)
{
Directory.CreateDirectory(csDir);
}
//Basic structures
using (var cw = new CodeWriter(csPath))
{
cw.Comment("Classes and structures being serialized");
cw.WriteLine();
cw.Comment(@"Generated by ProtocolBuffer
- a pure c# code generation implementation of protocol buffers
Report bugs to: https://silentorbit.com/protobuf/");
cw.WriteLine();
cw.Comment(@"DO NOT EDIT
This file will be overwritten when CodeGenerator is run.
To make custom modifications, edit the .proto file and add //:external before the message line
then write the code and the changes in a separate file.");
cw.WriteLine("using System;");
cw.WriteLine("using System.Collections.Generic;");
cw.WriteLine();
var messageCode = new MessageCode(cw, options);
string ns = null; //avoid writing namespace between classes if they belong to the same
foreach (ProtoMessage m in file.Messages.Values)
{
if (ns != m.CsNamespace)
{
if (ns != null) //First time
{
cw.EndBracket();
}
cw.Bracket("namespace " + m.CsNamespace);
ns = m.CsNamespace;
}
messageCode.GenerateClass(m);
cw.WriteLine();
}
foreach (ProtoEnum e in file.Enums.Values)
{
if (ns != e.CsNamespace)
{
if (ns != null) //First time
{
cw.EndBracket();
}
cw.Bracket("namespace " + e.CsNamespace);
ns = e.CsNamespace;
}
messageCode.GenerateEnum(e);
cw.WriteLine();
}
if (ns != null)
{
cw.EndBracket();
}
}
//.Serializer.cs
//Code for Reading/Writing
using (var cw = new CodeWriter(prefix + ".Serializer" + ext))
{
cw.Comment("This is the backend code for reading and writing");
cw.WriteLine();
cw.Comment(@"Generated by ProtocolBuffer
- a pure c# code generation implementation of protocol buffers
Report bugs to: https://silentorbit.com/protobuf/");
cw.WriteLine();
cw.Comment(@"DO NOT EDIT
This file will be overwritten when CodeGenerator is run.");
cw.WriteLine("using System;");
cw.WriteLine("using System.IO;");
cw.WriteLine("using System.Text;");
cw.WriteLine("using System.Collections.Generic;");
cw.WriteLine();
string ns = null; //avoid writing namespace between classes if they belong to the same
foreach (ProtoMessage m in file.Messages.Values)
{
if (ns != m.CsNamespace)
{
if (ns != null) //First time
{
cw.EndBracket();
}
cw.Bracket("namespace " + m.CsNamespace);
ns = m.CsNamespace;
}
var messageSerializer = new MessageSerializer(cw, options);
messageSerializer.GenerateClassSerializer(m);
}
if (ns != null)
{
cw.EndBracket();
}
}
//Option to no include ProtocolParser.cs in the output directory
if (options.NoProtocolParser)
{
Console.Error.WriteLine("ProtocolParser.cs not (re)generated");
}
else
{
string libPath = Path.Combine(Path.GetDirectoryName(csPath), "ProtocolParser.cs");
using (TextWriter codeWriter = new StreamWriter(libPath, false, Encoding.UTF8))
{
codeWriter.NewLine = "\r\n";
ReadCode(codeWriter, "ProtocolParser", true);
ReadCode(codeWriter, "ProtocolParserExceptions", false);
ReadCode(codeWriter, "ProtocolParserFixed", false);
ReadCode(codeWriter, "ProtocolParserKey", false);
ReadCode(codeWriter, "ProtocolParserMemory", false);
if (options.Net2 == false)
{
ReadCode(codeWriter, "ProtocolParserMemory4", false);
}
ReadCode(codeWriter, "ProtocolParserVarInt", false);
}
}
}
