将包含 NSubstitute 代码的 C# 语句转换为 VB.net [英] Convert C# statements including NSubstitute code to VB.net

问题描述

在阅读 NSubstitute 教程时，我将用 C# 编写的示例转换为 VB.net 以了解功能，但我需要您对这些(不相关的)语句的支持，尽管采取了所有措施，但我无法转换:

1.

calculator().Received().Add(1, Arg.Is(Of Integer)(function(x) new[] {-2,-5,-10}.Contains(x)))

2.

注意:foo 是一个接口的派生对象，它有一个名为SayHello"的 void 方法

foo.When(x >= x.SayHello("World")).Do(x => counter++);

3.

calculator().When(x >= x.Add(-2, -2)).Do(x => { throw new Exception(); });

注意:引擎是从这个接口派生的对象:

公共接口 IEngine {事件 EventHandler 空闲；event EventHandler低燃油警告；事件 ActionRevvedAt;}

4.

engine.Idling += (sender, args) =>wasCalled = true;

5.

engine.Idling += Raise.EventWith(new object(), new EventArgs());

6.

engine.RevvedAt += rpm =>revvedAt = rpm;

希望在您的支持下，我可以自行转换剩余的语句.

提前致谢

迈克尔

解决方案

您似乎想转换 Lambda 并添加事件处理程序.

来自 C# 的 Lambda

.Where(x => x.Foo = 1).Do(x => x.Bar())

翻译成

.Where(function(x) x.Foo = 1).Do(sub(x) x.Bar())

在 VB.Net 中，您必须考虑 Labda 是实际执行函数还是子函数并相应地对其进行编码.

在 C# 中添加事件

engine.Idling += MyEventHandler

在VB.Net

AddHandler engine.Idling, AddressOf MyEventHandler

VB.Net 让你添加这样的事件.删除事件由关键字 RemoveHandler

完成

While reading the NSubstitute tutorial i convert the samples written in C# to VB.net to understand the functionality, but I need your support for these (unrelated) statements, which I can't convert despite all the care taken:

1.

calculator().Received().Add(1, Arg.Is(Of Integer)(function(x) new[] {-2,-5,-10}.Contains(x)))

2.

Note: foo is a derived object from an interface with a void method called "SayHello"

foo.When(x >= x.SayHello("World")).Do(x => counter++);

3.

calculator().When(x >= x.Add(-2, -2)).Do(x => { throw new Exception(); });

Note: engine is a derived object from this interface:

public interface IEngine {
    event EventHandler Idling;
    event EventHandler<LowFuelWarningEventArgs> LowFuelWarning;
    event Action<int> RevvedAt;
}

4.

engine.Idling += (sender, args) => wasCalled = true;

5.

engine.Idling += Raise.EventWith(new object(), new EventArgs());

6.

engine.RevvedAt += rpm => revvedAt = rpm;

With your support I hope, I'm able to convert the remaining statements on my own.

Thank you in advance

Michael

解决方案

It seems you want to convert Lambda's and adding event handlers.

Lambda from c#

.Where(x => x.Foo = 1)
.Do(x => x.Bar())

translates into

.Where(function(x) x.Foo = 1)
.Do(sub(x) x.Bar())

In VB.Net you have to take into account if the Labda is actually performing a function or a sub and code it accordingly.

Adding events in c#

engine.Idling += MyEventHandler

in VB.Net

AddHandler engine.Idling, AddressOf MyEventHandler

VB.Net lets u add the event like this. Removing an event is done by the keyword RemoveHandler

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