从IronRuby返回CLR类型

我试图从Iron Ruby返回一个CLR对象。

我在C＃中定义了以下CLR类型

public class BuildMetaData { public string Description { get; set; } } 

我有以下IronRuby文件：

 $:.unshift(File.dirname(__FILE__) + '/../bin/Debug') require 'mscorlib' require 'Horn.Core.DSL.Domain' class MetaDataFactory def return_meta_data() meta = Horn::Core::DSL::Domain::BuildMetaData.new meta.Description = "A description of sorts" meta end end 

我有以下测试失败：

 [Fact] public void Then_a_build_metadata_object_is_returned() { var engine = Ruby.CreateEngine(); engine.ExecuteFile("test.rb"); var code = String.Format("{0}.new.method :{1}", "MetaDataFactory", "return_meta_data"); var action = engine.CreateScriptSourceFromString(code).Execute(); var result = (BuildMetaData)engine.Operations.Call(action); Assert.Equal(result.Description, "A description of sorts"); } 

尝试转换从IronRuby返回的对象时失败。

我收到以下错误消息：

[A] Horn.Core.DSL.Domain.BuildMetaData无法强制转换为[B] Horn.Core.DSL.Domain.BuildMetaData。 类型A源自’Horn.Core.DSL.Domain，Version = 1.0.0.0，Culture = neutral，PublicKeyToken = null’在上下文’LoadNeither’位置’C：\ Projects \ horn \ branches \ ruby​​dsl \ src \ Horn .Dsl.Specificatioin \ BIN \调试\ Horn.Core.DSL.Domain.dll”。 类型B源自’Horn.Core.DSL.Domain，Version = 1.0.0.0，Culture = neutral，PublicKeyToken = null’在上下文’Default’位置’C：\ Users \ paul.cowan \ AppData \ Local \ Temp \ 1vt2usw2.rxf \ Horn.Dsl.Specificatioin \组件\ DL3 \ 1d5ed945 \ 7c19e429_1a97c901 \ Horn.Core.DSL.Domain.DLL”。

是否可以从Iron Ruby返回CLR类型

Answer 1

而不是使用特制的Ruby字符串获取方法，然后使用C＃调用该方法，从C＃调用Ruby代码的首选方法如下：

 var engine = IronRuby.Ruby.CreateEngine() engine.ExecuteFile("test.rb") var klass = engine.Runtime.Globals.GetVariable("MetaDataFactory") var instance = engine.Operations.CreateInstance(klass) engine.Operations.InvokeMember(instance, "return_meta_data") 

〜吉米

Answer 2

实际上这完全取决于影子复制。

我的代码最终看起来像这样：

 [Fact] public void Then_the_object_should_be_accessible_in_csharp() { var engine = Ruby.CreateEngine(); engine.Runtime.LoadAssembly(typeof (BuildMetaData).Assembly); engine.ExecuteFile(buildFile); var klass = engine.Runtime.Globals.GetVariable("MetaDataFactory"); var instance = (RubyObject)engine.Operations.CreateInstance(klass); //You must have shadow-copying turned off for the next line to run and for the test to pass. //Eg in R# "ReSharper/Options/Unit Testing/Shadow-Copy Assemblies being tested" should be un-checked. var metaData = (BuildMetaData)engine.Operations.InvokeMember(instance, "return_meta_data"); Assert.Equal(metaData.Description, "A description of sorts"); Assert.Equal(metaData.Dependencies.Count, 1); } 

但是如果我从R＃测试运行器关闭了阴影复制，那么现在测试通过了。