如何在Mono中安装和使用F#Powerpack? [英] How to install and use F# Powerpack in Mono?

问题描述

我需要使用 F#powerpack 安装. 我在Mac上使用单声道版本2.10.2.

I need to install use F# powerpack. I use mono version 2.10.2 on Mac.

mono --version
Mono JIT compiler version 2.10.2 (tarball Mon Apr 18 09:14:01 MDT 2011)
Copyright (C) 2002-2011 Novell, Inc and Contributors. www.mono-project.com
        TLS:           normal
        SIGSEGV:       normal
        Notification:  kqueue
        Architecture:  x86
        Disabled:      none
        Misc:          debugger softdebug 
        LLVM:          yes(2.9svn-mono)
        GC:            Included Boehm (with typed GC)

安装.

1. 从此处下载powerpack zip文件.

1. Download the powerpack zip file from here.

将文件解压缩到目录~/bin.

使用Powerpack

我在此页面中使用示例代码进行了测试.我命名为linq.fs

Using the powerpack

I tested with the sample code in this page. I name it linq.fs

open Microsoft.FSharp.Linq
let adderExpr = <@ fun i -> i + 1 @>.ToLinqExpression()
let adder = <@ fun i -> i + 1 @>.Compile()

问题

1. 我遇到了fsc linq.fs /r:FSharp.PowerPack.Linq.dll错误.可能是什么问题?

1. I got errors with fsc linq.fs /r:FSharp.PowerPack.Linq.dll. What might be wrong?

/Users/smcho/Desktop/fs/powerpack/linq.fs(1,38):错误FS0039:未定义字段，构造函数或成员"ToLinqExpression"

/Users/smcho/Desktop/fs/powerpack/linq.fs(1,38): error FS0039: The field, constructor or member 'ToLinqExpression' is not defined

/Users/smcho/Desktop/fs/powerpack/linq.fs(2,34):错误FS0039:未定义字段，构造函数或成员"Compile"

/Users/smcho/Desktop/fs/powerpack/linq.fs(2,34): error FS0039: The field, constructor or member 'Compile' is not defined

我是否需要使用gacutil -i安装所有dll?或者，仅将dll路径附加到PATH/MONO_PATH环境变量就足够了吗?

Do I need to install all the dll with gacutil -i? Or, just appending the dll path to the PATH/MONO_PATH environment variable is just good enough?

推荐答案

您的安装过程似乎正确(只需解压缩并使用gacutil -i安装).我认为该示例仅存在一个小问题-ToLinqExpression扩展方法在需要显式打开的模块中可用，因此您的文件应为:

Your installation procedure seems to be correct (just unzip and install using gacutil -i). I think there is just a minor issue with the sample - the ToLinqExpression extension method is available in a module that needs to be explicitly opened, so your file should be:

编辑正确的模块名称实际上是Microsoft.FSharp.Linq.QuotationEvaluation:

EDIT The right module name is actually Microsoft.FSharp.Linq.QuotationEvaluation:

open Microsoft.FSharp.Linq.QuotationEvaluation

let adderExpr = <@ fun i -> i + 1 @>.ToLinqExpression()
let adder = <@ fun i -> i + 1 @>.Compile()

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