与scan.TheCallingAssembly一起使用时，StructureMap找不到通用类型

Question

I have an Application-Assembly, which contains an amount of generic IMapper Interfaces. Each implementation has said Types and two methods to map the objects in each direction. Using AutoMapper, I went ahead using their documentation and created an IocRegistry-Class in said Application-Assembly, which should register all Types:

public class IocRegistry : Registry
{
    public IocRegistry()
    {
        Scan(
            scan =>
            {
                scan.TheCallingAssembly(); // Scan this assembly
                scan.WithDefaultConventions();
                scan.AddAllTypesOf(typeof(IMapper<,>));
            });
    }
}

And if I use the "WhatDidIScan"-method, I can see the configuration:

IocRegistry Scanner #1 Assemblies

• Mmu.Ddws.Application, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null

Conventions

• Default I[Name]/[Name] registration convention
• Find and register all types implementing Mmu.Ddws.Application.Common.Mapping.IMapper`2

Yet, as soon as I try to get an instance of such a Mapper, I get the error it didn't find it.

Interesting enough, if I'm registerering the Interfaces on my WebServices-Assembly, which is the starting point, via:

internal static class IocInitialization
{
    internal static IServiceProvider InitializeIoc(IServiceCollection services)
    {
        var container = new Container();

        container.Configure(
            config =>
            {
                config.Scan(
                    scan =>
                    {
                        scan.AssembliesFromApplicationBaseDirectory();
                        scan.LookForRegistries();
                        scan.WithDefaultConventions();
                        scan.AddAllTypesOf(typeof(IMapper<,>));
                    });

                config.Populate(services);
            });

        Debug.WriteLine(container.WhatDidIScan());
        var result = container.GetInstance<IServiceProvider>();
        return result;
    }
}

I get exactly the same convention:

Conventions

• StructureMap.Graph.FindRegistriesScanner
• Default I[Name]/[Name] registration convention
• Find and register all types implementing Mmu.Ddws.Application.Common.Mapping.IMapper`2

And yet, this way it works. I have the Interface and the Implementations in the Application-Assembly, therefore the most discussions resolving around Interfaces in different Assemblies, doesn't seem to fit here. So my best bet would be, that scanning the calling Assembly is kinda wrong, but I couldn't find any remarks regarding this?

Answer 1

有关详细信息和使用开放通用类型进行类型扫描的示例，请参见此内容： http : //structuremap.github.io/generics/