How to generate struct with ProtoGen from proto file

问题

We've been using protobuf-net ProtoGen to generate C# .cs file from *.proto file. We would like instead of class to generate struct. e.g.

[DataContract]
public struct Entity1
{
    [ProtoMember(1)]
    public double Field1 { get; set; }

    [ProtoMember(2)]
    public string Field2 { get; set; }
}

I tried to extract protocol buffer using method Serializer.GetProto for class and struct type. It seems, that protocol buffer (.proto) doesn't recognize difference between the struct and class. So I imply, that could be a parameter in ProtoGen to choose between class/struct for generation from .proto. Does the feature exist or how could I solve generation of the struct from *.proto?

回答1:

At the current time, ProtoGen only emits classes; since the data is inherently mutable, I would say that this is reasonable, but - two options present themselves:

• edit csharp.xslt to replace class with struct (or copy csharp.xslt, and use the -t parameter to tell it to use the copy)
• use it "as is", and make judicious use of ctrl+h (low-tech, I know; but it will work)

来源：https://stackoverflow.com/questions/18358233/how-to-generate-struct-with-protogen-from-proto-file