Protobuf-net [default] not recognized in .proto file?
I am using .proto files to point my protobuf posts. I am using [default=]
but I cannot see where the values are set. They are not found in autogenerated .cs files. I want to set some default values when creating a post. I cannot use the default constructor because it is inside the auto-generated .cs files.
Any ideas how to solve this problem?
My .proto file:
package Messages;
message Ack
{
required bool is_error = 1 [default=false];
required string message = 2 [default="ok"];
required string request_id = 3;
}
generates:
namespace Messages
{
[global::System.Serializable, global::ProtoBuf.ProtoContract(Name=@"Ack")]
public partial class Ack : global::ProtoBuf.IExtensible
{
public Ack() {}
private bool _is_error;
[global::ProtoBuf.ProtoMember(1, IsRequired = true, Name=@"is_error", DataFormat = global::ProtoBuf.DataFormat.Default)]
public bool is_error
{
get { return _is_error; }
set { _is_error = value; }
}
private string _message;
[global::ProtoBuf.ProtoMember(2, IsRequired = true, Name=@"message", DataFormat = global::ProtoBuf.DataFormat.Default)]
public string message
{
get { return _message; }
set { _message = value; }
}
private string _request_id;
[global::ProtoBuf.ProtoMember(3, IsRequired = true, Name=@"request_id", DataFormat = global::ProtoBuf.DataFormat.Default)]
public string request_id
{
get { return _request_id; }
set { _request_id = value; }
}
private global::ProtoBuf.IExtension extensionObject;
global::ProtoBuf.IExtension global::ProtoBuf.IExtensible.GetExtensionObject(bool createIfMissing)
{ return global::ProtoBuf.Extensible.GetExtensionObject(ref extensionObject, createIfMissing); }
}
I am using Visual Studio 2013 Update 3 english and latest protobuf-net.
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1 answer
If I take as an example:
message Foo {
optional int32 value = 1 [default = 123];
}
and run this through protogen, then I get:
//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by a tool.
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
// Generated from: my.proto
namespace my
{
[global::System.Serializable, global::ProtoBuf.ProtoContract(Name=@"Foo")]
public partial class Foo : global::ProtoBuf.IExtensible
{
public Foo() {}
private int _value = (int)123;
[global::ProtoBuf.ProtoMember(1, IsRequired = false, Name=@"value", DataFormat = global::ProtoBuf.DataFormat.TwosComplement)]
[global::System.ComponentModel.DefaultValue((int)123)]
public int value
{
get { return _value; }
set { _value = value; }
}
private global::ProtoBuf.IExtension extensionObject;
global::ProtoBuf.IExtension global::ProtoBuf.IExtensible.GetExtensionObject(bool createIfMissing)
{ return global::ProtoBuf.Extensible.GetExtensionObject(ref extensionObject, createIfMissing); }
}
}
This explicitly contains a default value both in the field initializer and via DefaultValueAttribute
.
If I add a parameter -p:detectMissing
, I get:
//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by a tool.
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
// Option: missing-value detection (*Specified/ShouldSerialize*/Reset*) enabled
// Generated from: my.proto
namespace my
{
[global::System.Serializable, global::ProtoBuf.ProtoContract(Name=@"Foo")]
public partial class Foo : global::ProtoBuf.IExtensible
{
public Foo() {}
private int? _value;
[global::ProtoBuf.ProtoMember(1, IsRequired = false, Name=@"value", DataFormat = global::ProtoBuf.DataFormat.TwosComplement)]
public int value
{
get { return _value?? (int)123; }
set { _value = value; }
}
[global::System.Xml.Serialization.XmlIgnore]
[global::System.ComponentModel.Browsable(false)]
public bool valueSpecified
{
get { return this._value != null; }
set { if (value == (this._value== null)) this._value = value ? this.value : (int?)null; }
}
private bool ShouldSerializevalue() { return valueSpecified; }
private void Resetvalue() { valueSpecified = false; }
private global::ProtoBuf.IExtension extensionObject;
global::ProtoBuf.IExtension global::ProtoBuf.IExtensible.GetExtensionObject(bool createIfMissing)
{ return global::ProtoBuf.Extensible.GetExtensionObject(ref extensionObject, createIfMissing); }
}
}
This is now the default for "getter".
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