F# “你做什么？”；mustinline值。。。未推断出具有已知值；及；在优化环境中标记为“内联但未绑定”；什么意思？

在Visual Studio 2012中使用F#时，我遇到了一个编译时错误，我不理解

我可以在这里找到一个小片段：

以下错误消息是什么意思

/home/iU0RLi/prog.fs(3,22): error FS0073: internal error: the mustinline value 'Bar' was not inferred to have a known value

/home/iU0RLi/prog.fs(5,1): error FS1114: The value 'Prog.Foo.Bar' was marked inline but was not bound in the optimization environment

/home/iU0RLi/prog.fs(3,22): error FS1113: The value 'Bar' was marked inline but its implementation makes use of an internal or private function which is not sufficiently accessible

/home/iU0RLi/prog.fs(5,1): warning FS1116: A value marked as 'inline' has an unexpected value

/home/iU0RLi/prog.fs(5,1): error FS1118: Failed to inline the value 'Bar' marked 'inline', perhaps because a recursive value was marked 'inline'

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我倾向于认为这是一个bug，因为它在没有继承System.Exception（）的情况下运行良好。你试过发电子邮件吗fsbugs@microsoft.com？还没有，但我想大约500天前在ideone上发布这个简短示例的那个人已经发布了。不过，在XParsec（）中内联4个导航函数时，我也遇到了类似的问题-在任何地方都看不到

inherit System.Exception

。在这个示例中，我猜您可能正在创建递归内联。我会去掉很多内联，因为它会让调试变得更加困难，因为你会丢失堆栈帧。github上的示例对我来说很好（如果我重命名以

？

开头的操作符，这是不允许作为操作符名称的第一个字符的话）。@CetinSert这很奇怪-我在F#2.0中遇到了

？

的错误（我认为这是为了避免与动态查找发生冲突）也许这在F#3.0中不再是问题了。

/home/iU0RLi/prog.fs(3,22): error FS0073: internal error: the mustinline value 'Bar' was not inferred to have a known value

/home/iU0RLi/prog.fs(5,1): error FS1114: The value 'Prog.Foo.Bar' was marked inline but was not bound in the optimization environment

/home/iU0RLi/prog.fs(3,22): error FS1113: The value 'Bar' was marked inline but its implementation makes use of an internal or private function which is not sufficiently accessible

/home/iU0RLi/prog.fs(5,1): warning FS1116: A value marked as 'inline' has an unexpected value

/home/iU0RLi/prog.fs(5,1): error FS1118: Failed to inline the value 'Bar' marked 'inline', perhaps because a recursive value was marked 'inline'