.net 如何将Dafny代码与C#程序集链接

我正在尝试建立和运行一个新的系统。我在Mac上使用的是

mono

。该答案中的build命令不适用于我：

$ dafny fileiotest.dfy fileionative.cs
Dafny 3.0.0.20820

Dafny program verifier finished with 4 verified, 0 errors
Compiled program written to fileiotest.cs
Errors compiling program into fileiotest
(8,24): error CS0234: The type or namespace name 'Net' does not exist in the namespace 'System' (are you missing an assembly reference?)

(9,26): error CS0234: The type or namespace name 'Net' does not exist in the namespace 'System' (are you missing an assembly reference?)

(28,28): error CS0012: The type 'TextWriter' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Runtime.Extensions, Version=4.2.2.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.

(43,28): error CS0012: The type 'TextWriter' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Runtime.Extensions, Version=4.2.2.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.

(58,28): error CS0012: The type 'TextWriter' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Runtime.Extensions, Version=4.2.2.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.

(73,28): error CS0012: The type 'TextWriter' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Runtime.Extensions, Version=4.2.2.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.

(87,28): error CS0012: The type 'TextWriter' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Runtime.Extensions, Version=4.2.2.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.

(1858,18): error CS0117: 'FileStream' does not contain a definition for 'Open'

(1870,23): error CS1061: 'FileStream' does not contain a definition for 'Write' and no accessible extension method 'Write' accepting a first argument of type 'FileStream' could be found (are you missing a using directive or an assembly reference?)

---

如何“添加对程序集的引用”？可以在

dafny

命令行上完成吗？

我认为文件示例不需要System.Net导入，因此您可以从

fileionactive.cs

文件中删除这些包含

我不确定是否存在

TextWriter

错误，但如果您能找出所需的程序集引用，可以通过手动运行

csc

将其添加到命令行。这就是我的机器上的工作原理：

dafny fileiotest.dfy /spillTargetCode:3 /compile:0
csc fileionative.cs fileiotest.cs /r:System.Core.dll /r:System.dll /r:System.Collections.Immutable.dll /r:System.Runtime.dll /r:System.Numerics.dll

/spillTargetCode:3

参数告诉Dafny输出

fileiotest.cs

文件。

/compile:0

行告诉它跳过最后的编译步骤，因此您可以手动执行

最后，针对最后两个错误：

(1858,18): error CS0117: 'FileStream' does not contain a definition for 'Open'

(1870,23): error CS1061: 'FileStream' does not contain a definition for 'Write' and no accessible extension method 'Write' accepting a first argument of type 'FileStream' could be found (are you missing a using directive or an assembly reference?)

---

我认为这是一个与Dafny生成的C#代码预期的约定不匹配的Dafny版本。另一个堆栈溢出答案中的

fileioactive.cs

使用名为

\u default

的命名空间，但生成的Dafny

fileiotest.cs

使用名为

\u module

的命名空间。因此，您只需更改

fileionactive.cs

即可使用正确的命名空间

\u module

。

谢谢！哇，这里真的有几个问题。我还是不能编译这个。我收到一条消息“您必须添加对程序集'nestandard，Version=2.0.0.0…'的引用”。但是

/r:netstandard.dll

导致“错误CS0006:找不到元数据文件'netstandard.dll'。

dotnet

所做的只是为所有dll提供绝对路径，并且默认情况下，它在命令行中包含对netstandard.dll的引用。因此，这可能对我有用，但我现在没有时间尝试。不幸的是，这超出了我对C#/.net/mono的了解，抱歉：\