F# PowerPack with F# Compiler Source Drops

Closed Issue: Expert F# examples not working [3939]

dsyme — Thu, 16 May 2013 10:44:27 GMT

Hello,

I just purchased the book Expert F#, installed the latest Visual Studio 2010 release (10.0.21006.1 B2Rel), and downloaded the code sample for the first F# program in chapter 2. Unfortunately, it doesn't run because it cannot find String.split(). The error points me to the FSharp.PowerPack. I downloaded the power pack & Visual Studio says that the assembly must be recompiled to work with this version of Visual Studio. So, I downloaded the Power Pack source code to compile, and I receive an error that "unmanaged" is an unexpected identifier.

Thus, I'm a bit stuck. Can you point me in the right direction?

Thanks,
Mike

Closed Issue: Provide method for determining whether two FSharpEntities are identical [3951]

jopamer — Thu, 16 May 2013 10:44:27 GMT

In trying to build a search facility for the F# libraries in response to a question on StackOverflow (http://stackoverflow.com/questions/2253730/does-f-documentation-have-a-way-to-search-for-functions-by-their-types/2253778) I ran into a an issue with the Metadata library. It seems like there is no easy way to check if two FSharpEntities are the same. For example, the following code returns false

let unitName = "Microsoft.FSharp.Core.unit"
let getEntity = FSharpAssembly.FSharpLibrary.GetEntity
(getEntity unitName) = (getEntity unitName)

It's possible to hack something together, but without a deep understanding of the internals it's easy to miss odd corner cases (such as the []`1 type). It seems like this would best be handled at the library level.

Thanks,
Keith

Closed Issue: PSeq.groupBy not using the the right comparison [3952]

dsyme — Thu, 16 May 2013 10:44:26 GMT

From a bug report:

PSeq.groupby is breaking when applied to keys that are arrays. I think it is using reference equality because you've haven't passed the appropriate IEqualityComparer to ParallelEnumerable.GroupBy.

Equivalent bugs may well be afflicting similar functions, of course.

Closed Issue: Binaries ZIP File broken [4006]

jopamer — Thu, 16 May 2013 10:44:26 GMT

The ZIP when extracted does not create a directory structure, instead all filenames contain the complete path (using backslashed!) which is wrong. E.g instead of getting a file FSharp.PowerPack.dll in FSharpPowerPack-1.9.9.9/bin, you get a File FSharpPowerPack-1.9.9.9\bin\FSharp.PowerPack.dll. Also the filename has some trailing whitespace.

Closed Issue: record equality in quotation evaluation [4041]

jopamer — Thu, 16 May 2013 10:44:26 GMT

open Microsoft.FSharp.Linq.QuotationEvaluation

let print x = System.Console.WriteLine(sprintf "%A" x)

type record = { x:int; y:int }
let val1 = { x = 1; y = 1; }
let val2 = { x = 1; y = 1; }
let result = val1 = val2
print result

let quote = <@ let value1 = { x = 1; y = 1; }
let value2 = { x = 1; y = 1; }
let result2 = value1 = value2
result2 @>

print (quote.EvalUntyped())

Output is true, false, and should be true,true.

Closed Issue: ResizeArray module lacks an ofSeq function. [4053]

jopamer — Thu, 16 May 2013 10:44:25 GMT

The ResizeArray module has toSeq, ofArray, ofList, and so on, but it does not seem to have an ofSeq function. A simple one-line addition would make this module more complete.

Closed Issue: PSeq.sumBy produces incorrect results [4139]

LukeH — Thu, 16 May 2013 10:44:25 GMT

PSeq.sumBy internally uses ParallelEnumerable.Average instead of ParallelEnumerable.Sum.

Closed Issue: Silverlight 3.0 build of F# PowerPack [4219]

jopamer — Thu, 16 May 2013 10:44:25 GMT

We should have a build of the PowerPack for Silverlight 3.0.

Closed Issue: Fsharp 1.9.6.16 incompatibility? [4253]

LukeH — Thu, 16 May 2013 10:44:24 GMT

I have been using FSharp 1.9.6.16 to access FSLex,FSYacc, and BigInt's among other things. However, when I went to install on a new machine, I found that the PowerPack 1.9.9.9 is incompatible with FSharp 1.9.6.16. I tried installing the most recent FSharp for Visual Studio 2008 along with the PowerPack, but that combination seems to have lost functionality (BigInt's in particular).

So .. does a PowerPack installer still exist for FSharp 1.9.6.16?

I tried to download the source to recompile it, but that appears to require a newer FSharp than 1.9.6.16. Perhaps there's an older version of the source code around somewhere?

Is there any other way for me to get my code compiling again with Visual Studio 2008?

Closed Issue: Matrix PermuteColumns throws unexpected IndexOutOfRange exception [4296]

jopamer — Thu, 16 May 2013 10:44:24 GMT

From an email bug report:

The bug is in PermuteColumns function:

let u = matrix [ [1.;2.]; [3.;4.]; [5.;6.] ]

let u' = u.PermuteColumns (fun j -> j ) //u.NumCols - j - 1)

The above code generates IndexOutOfRangeException.

Closed Issue: Do not use Expression.Type in PowerPack.Linq [4467]

jopamer — Thu, 16 May 2013 10:44:24 GMT

Expression.Typr went virtual in .NET 4.0, and calling it breaks PowerPack bin-compat (compiler issues non-virtual call when compiling against .NET 3.5)

Closed Issue: Version 2.0.0.0 breaks fslex/fsyacc build in VS2010 [4548]

janelee1 — Thu, 16 May 2013 10:44:23 GMT

Hi,

I have a F# project with a fslex and fsyacc file. With Version 1.9.9.9 it builds fine.
The PowerPack bin directory is not listed in the PATH.

Upgrading to 2.0.0.0 the fslex and fsyacc binaries are searched in the wrong place and not found.
Even changing the PATH variable to contain the PowerPack bin directory does not solve this problem.

The resulting error code is:

C:\Program Files\MSBuild\FSharp\1.0\FSharp.PowerPack.Targets(32,3): Fehler MSB6004: Der Speicherort "C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\fslex.exe" der angegebenen ausführbaren Datei der Aufgabe ist ungültig.

After downgrading to 1.9.9.9 the build works flawlessly again.

Thanks for the support,
Vince

Source code checked in, #71609

dsyme — Fri, 03 May 2013 13:47:09 GMT

Further change for VS2012 Update2

Source code checked in, #71608

dsyme — Fri, 03 May 2013 13:38:11 GMT

Further changes for VS Update 2 - Portable Async and Query fixes

Source code checked in, #71603

dsyme — Thu, 02 May 2013 12:02:10 GMT

Updates corresponding to Visual Studio 2012 Update 2

New Comment on "FsYacc"

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New Comment on "FsYacc"

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Created Issue: Do not warn when a match covers all cases of enum [7398]

nesteruk — Mon, 15 Apr 2013 07:14:06 GMT

Here's one thing that's really annoying. Say you have an enum Foo { Bar; Baz; }. Now, if I do a match that covers cases Bar and Baz, Visual Studio complains that option enum<Foo>(2) is not covered by the match.

Could you please get rid of this? It's totally unintuitive, annoying and generally unhelpful.

Thanks.

Commented Issue: Version 2.0.0.0 breaks fslex/fsyacc build in VS2010 [4548]

janelee1 — Tue, 09 Apr 2013 09:27:37 GMT

I update it, and my problem is solve.

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Commented Issue: FsLex/FsYacc build tasks broken [7307]

JPW — Fri, 15 Mar 2013 17:33:52 GMT

The FsLex and FsYacc build tasks are broken in the Dec2012 release. Using either of them results in a build error:
> C:\Program Files (x86)\MSBuild\FSharp\1.0\FSharp.PowerPack.targets(32,3): error MSB6004: The specified task executable location "C:\Windows\Microsoft.NET\Framework\v4.0.30319\fslex.exe" is invalid.

The Installer does not create a Registry under "Software\Microsoft\.NETFramework\AssemblyFolders\FSharp.PowerPack-1.9.9.9" which is checked in "CompilerLocationUtils.fs" to locate the F# PowerPack install location. A quick Registry search indicated that no entry containing the install location is created at all making tool discovery impossible.

Note: This bug has already been marked as "fixed" for an earlier release (see: [here](http://fsharppowerpack.codeplex.com/workitem/4548?ProjectName=fsharppowerpack))
Comments: ** Comment from web user: JPW **

Sorry for not mentioning this in the original description: This is (kind of) a regression bug, the __workaround__ given for the linked issue (item number: 4548) to create the Registry key "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft.NETFramework\AssemblyFolders\FSharp.PowerPack-1.9.9.9" whose default value points to the install location of FsLex and FsYacc does work for the Dec2012 release as well.

A clean solution on the other hand (not a hack or workaround) would be to
1. Change the installer to create a Registry entry pointing to the F# PowerPack install location (Note that the 2.0.0.0 installer already did this correctly, but the Dec2012 installer does not create any such key anymore)
2. Change "CompilerLocationUtils.fs" to check that Registry key (instead of the key given above)