F#特殊报价? (##) [英] F# special quotes? (##)

问题描述

我刚遇到 http://frankniemeyer.blogspot.com/2010/04/minimalistic-native-64-bit-array.html 其中包含行

I just ran across http://frankniemeyer.blogspot.com/2010/04/minimalistic-native-64-bit-array.html Which contains the line

(# "sizeof !0" type('T) : nativeint #)

我相信技术用语是到底是什么?"在我的F#编程(〜8个月)中，我从未遇到过类似的东西……

I believe the technical phrase is "what the heck?" I have never in my (~8 months) of F# programming run across something even resembling that...

FSI告诉我一些有关过时的构造的信息，这些构造仅用于F#库...

FSI tells me something about deprecated constructs, used only for F# libs...

和Google一起使用(#嗯...嗯，不多

And google with (# does uh...well, not much

这方面有什么方向吗?

推荐答案

这是行内IL发射的表示法.在F#的早期，它曾经是一个更加突出的功能，但是已经过时了.来自F#团队的一位名叫Brian的绅士表示，目前它主要用于引导F#编译器，并且该团队打算将此构造标记为错误，而不仅仅是警告.

This is the notation for inline IL emission. It used to be a more prominent feature during F#'s earlier years, but has been deprecated. A gentleman named Brian from the F# team has indicated that it is currently used mainly to bootstrap the F# compiler, and that the team had intended to mark this construct as an error, not merely a warning.

有关完整的故事，请参见他的帖子此处.

See his post here for the full story.

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