Re: [Haskell-cafe] plugins and internal error: stg_ap_v_ret

2011-02-01 Thread Michael Snoyman 
Hi Andy,

plugins *is* working in general for me for some trivial test cases.
It's specifically this use case with WAI that's causing trouble, which
implies to me I'm misusing the API somehow.

Michael

On Tue, Feb 1, 2011 at 4:22 AM, Andy Stewart lazycat.mana...@gmail.com wrote:
 Hi Michael,

 plugins use it's own function instead GHC API, so it's easy to break
 with new version GHC.

  -- Andy

 Michael Snoyman mich...@snoyman.com
 writes:

 Hi all,

 I'm trying to convert wai-handler-devel to use plugins instead of
 hint, but cannot even get some basic usages to work properly. I've put
 together a minimal example that loads a WAI application from a
 separate file and runs it, but this immediately causes the program to
 crash saying:

 loader: internal error: stg_ap_v_ret
     (GHC version 6.12.3 for i386_unknown_linux)
     Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

 Is this an actual bug in GHC, or am I misusing the plugins package?

 The two source files:

 MyModule.hs
 {-# LANGUAGE OverloadedStrings #-}
 module MyModule where

 import Network.Wai
 import Data.ByteString.Lazy.Char8 ()

 myapp _ = responseLBS status200 [(Content-Type, text/plain)] myapp

 loader.hs
 import System.Plugins.Make
 import System.Plugins.Load
 import Network.Wai.Handler.Warp (run)

 main :: IO ()
 main = do
     MakeSuccess _ obj - makeAll MyModule.hs []
     LoadSuccess _ app - load_ obj [] myapp
     run 3000 app

 Thanks,
 Michael


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Re: [Haskell-cafe] plugins and internal error: stg_ap_v_ret

2011-02-01 Thread Andy Stewart 
Hi Michael,

I have write some dynamic-loading code for my Manatee project
(http://hackage.haskell.org/package/manatee)

Dynload.hs use GHC API, if you interested it, you can read source code:

https://patch-tag.com/r/AndyStewart/manatee-core/snapshot/current/content/pretty/Manatee/Core/Dynload.hs

Cheers,

  -- Andy

Michael Snoyman mich...@snoyman.com writes:

 Hi Andy,

 plugins *is* working in general for me for some trivial test cases.
 It's specifically this use case with WAI that's causing trouble, which
 implies to me I'm misusing the API somehow.

 Michael

 On Tue, Feb 1, 2011 at 4:22 AM, Andy Stewart lazycat.mana...@gmail.com 
 wrote:
 Hi Michael,

 plugins use it's own function instead GHC API, so it's easy to break
 with new version GHC.

  -- Andy

 Michael Snoyman mich...@snoyman.com
 writes:

 Hi all,

 I'm trying to convert wai-handler-devel to use plugins instead of
 hint, but cannot even get some basic usages to work properly. I've put
 together a minimal example that loads a WAI application from a
 separate file and runs it, but this immediately causes the program to
 crash saying:

 loader: internal error: stg_ap_v_ret
     (GHC version 6.12.3 for i386_unknown_linux)
     Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

 Is this an actual bug in GHC, or am I misusing the plugins package?

 The two source files:

 MyModule.hs
 {-# LANGUAGE OverloadedStrings #-}
 module MyModule where

 import Network.Wai
 import Data.ByteString.Lazy.Char8 ()

 myapp _ = responseLBS status200 [(Content-Type, text/plain)] myapp

 loader.hs
 import System.Plugins.Make
 import System.Plugins.Load
 import Network.Wai.Handler.Warp (run)

 main :: IO ()
 main = do
     MakeSuccess _ obj - makeAll MyModule.hs []
     LoadSuccess _ app - load_ obj [] myapp
     run 3000 app

 Thanks,
 Michael


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 Haskell-Cafe mailing list
 Haskell-Cafe@haskell.org
 http://www.haskell.org/mailman/listinfo/haskell-cafe


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Re: [Haskell-cafe] plugins and internal error: stg_ap_v_ret

2011-02-01 Thread Michael Snoyman 
Thanks for the link Andy, this definitely looks like the right I will
ultimately need to take. I just found out that plugins does not
install very well on Windows, which is something I need to provide
good support for with wai-handler-devel.

Michael

On Tue, Feb 1, 2011 at 1:15 PM, Andy Stewart lazycat.mana...@gmail.com wrote:
 Hi Michael,

 I have write some dynamic-loading code for my Manatee project
 (http://hackage.haskell.org/package/manatee)

 Dynload.hs use GHC API, if you interested it, you can read source code:

 https://patch-tag.com/r/AndyStewart/manatee-core/snapshot/current/content/pretty/Manatee/Core/Dynload.hs

 Cheers,

  -- Andy

 Michael Snoyman mich...@snoyman.com writes:

 Hi Andy,

 plugins *is* working in general for me for some trivial test cases.
 It's specifically this use case with WAI that's causing trouble, which
 implies to me I'm misusing the API somehow.

 Michael

 On Tue, Feb 1, 2011 at 4:22 AM, Andy Stewart lazycat.mana...@gmail.com 
 wrote:
 Hi Michael,

 plugins use it's own function instead GHC API, so it's easy to break
 with new version GHC.

  -- Andy

 Michael Snoyman mich...@snoyman.com
 writes:

 Hi all,

 I'm trying to convert wai-handler-devel to use plugins instead of
 hint, but cannot even get some basic usages to work properly. I've put
 together a minimal example that loads a WAI application from a
 separate file and runs it, but this immediately causes the program to
 crash saying:

 loader: internal error: stg_ap_v_ret
     (GHC version 6.12.3 for i386_unknown_linux)
     Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

 Is this an actual bug in GHC, or am I misusing the plugins package?

 The two source files:

 MyModule.hs
 {-# LANGUAGE OverloadedStrings #-}
 module MyModule where

 import Network.Wai
 import Data.ByteString.Lazy.Char8 ()

 myapp _ = responseLBS status200 [(Content-Type, text/plain)] myapp

 loader.hs
 import System.Plugins.Make
 import System.Plugins.Load
 import Network.Wai.Handler.Warp (run)

 main :: IO ()
 main = do
     MakeSuccess _ obj - makeAll MyModule.hs []
     LoadSuccess _ app - load_ obj [] myapp
     run 3000 app

 Thanks,
 Michael


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 Haskell-Cafe mailing list
 Haskell-Cafe@haskell.org
 http://www.haskell.org/mailman/listinfo/haskell-cafe



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Re: [Haskell-cafe] plugins and internal error: stg_ap_v_ret

2011-02-01 Thread Andy Stewart 
Michael Snoyman mich...@snoyman.com writes:

 Thanks for the link Andy, this definitely looks like the right I will
 ultimately need to take. 
Good, here is framework link to help you understand Dynload.hs 

http://www.flickr.com/photos/48809572@N02/5304662424/sizes/l/

Manatee is huge, but Dynload.hs is pretty simple, you can copy
Dynload.hs to your project for your need, the code under GPL-3.

Cheers,

  -- Andy

 I just found out that plugins does not
 install very well on Windows, which is something I need to provide
 good support for with wai-handler-devel.

 Michael

 On Tue, Feb 1, 2011 at 1:15 PM, Andy Stewart lazycat.mana...@gmail.com 
 wrote:
 Hi Michael,

 I have write some dynamic-loading code for my Manatee project
 (http://hackage.haskell.org/package/manatee)

 Dynload.hs use GHC API, if you interested it, you can read source code:


 https://patch-tag.com/r/AndyStewart/manatee-core/snapshot/current/content/pretty/Manatee/Core/Dynload.hs

 Cheers,

  -- Andy

 Michael Snoyman mich...@snoyman.com writes:

 Hi Andy,

 plugins *is* working in general for me for some trivial test cases.
 It's specifically this use case with WAI that's causing trouble, which
 implies to me I'm misusing the API somehow.

 Michael

 On Tue, Feb 1, 2011 at 4:22 AM, Andy Stewart lazycat.mana...@gmail.com 
 wrote:
 Hi Michael,

 plugins use it's own function instead GHC API, so it's easy to break
 with new version GHC.

  -- Andy

 Michael Snoyman mich...@snoyman.com
 writes:

 Hi all,

 I'm trying to convert wai-handler-devel to use plugins instead of
 hint, but cannot even get some basic usages to work properly. I've put
 together a minimal example that loads a WAI application from a
 separate file and runs it, but this immediately causes the program to
 crash saying:

 loader: internal error: stg_ap_v_ret
     (GHC version 6.12.3 for i386_unknown_linux)
     Please report this as a GHC bug:  
 http://www.haskell.org/ghc/reportabug

 Is this an actual bug in GHC, or am I misusing the plugins package?

 The two source files:

 MyModule.hs
 {-# LANGUAGE OverloadedStrings #-}
 module MyModule where

 import Network.Wai
 import Data.ByteString.Lazy.Char8 ()

 myapp _ = responseLBS status200 [(Content-Type, text/plain)] myapp

 loader.hs
 import System.Plugins.Make
 import System.Plugins.Load
 import Network.Wai.Handler.Warp (run)

 main :: IO ()
 main = do
     MakeSuccess _ obj - makeAll MyModule.hs []
     LoadSuccess _ app - load_ obj [] myapp
     run 3000 app

 Thanks,
 Michael


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 Haskell-Cafe mailing list
 Haskell-Cafe@haskell.org
 http://www.haskell.org/mailman/listinfo/haskell-cafe



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[Haskell-cafe] plugins and internal error: stg_ap_v_ret

2011-01-31 Thread Michael Snoyman 
Hi all,

I'm trying to convert wai-handler-devel to use plugins instead of
hint, but cannot even get some basic usages to work properly. I've put
together a minimal example that loads a WAI application from a
separate file and runs it, but this immediately causes the program to
crash saying:

loader: internal error: stg_ap_v_ret
(GHC version 6.12.3 for i386_unknown_linux)
Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

Is this an actual bug in GHC, or am I misusing the plugins package?

The two source files:

MyModule.hs
{-# LANGUAGE OverloadedStrings #-}
module MyModule where

import Network.Wai
import Data.ByteString.Lazy.Char8 ()

myapp _ = responseLBS status200 [(Content-Type, text/plain)] myapp

loader.hs
import System.Plugins.Make
import System.Plugins.Load
import Network.Wai.Handler.Warp (run)

main :: IO ()
main = do
MakeSuccess _ obj - makeAll MyModule.hs []
LoadSuccess _ app - load_ obj [] myapp
run 3000 app

Thanks,
Michael

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Re: [Haskell-cafe] plugins and internal error: stg_ap_v_ret

2011-01-31 Thread Andy Stewart 
Hi Michael,

plugins use it's own function instead GHC API, so it's easy to break
with new version GHC.

  -- Andy

Michael Snoyman mich...@snoyman.com
writes:

 Hi all,

 I'm trying to convert wai-handler-devel to use plugins instead of
 hint, but cannot even get some basic usages to work properly. I've put
 together a minimal example that loads a WAI application from a
 separate file and runs it, but this immediately causes the program to
 crash saying:

 loader: internal error: stg_ap_v_ret
 (GHC version 6.12.3 for i386_unknown_linux)
 Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

 Is this an actual bug in GHC, or am I misusing the plugins package?

 The two source files:

 MyModule.hs
 {-# LANGUAGE OverloadedStrings #-}
 module MyModule where

 import Network.Wai
 import Data.ByteString.Lazy.Char8 ()

 myapp _ = responseLBS status200 [(Content-Type, text/plain)] myapp

 loader.hs
 import System.Plugins.Make
 import System.Plugins.Load
 import Network.Wai.Handler.Warp (run)

 main :: IO ()
 main = do
 MakeSuccess _ obj - makeAll MyModule.hs []
 LoadSuccess _ app - load_ obj [] myapp
 run 3000 app

 Thanks,
 Michael


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