Andy Stewart writes:

Hi Ivan,

Ivan Lazar Miljenovic writes:

...

Andy Stewart writes:

...

Hi all,

I want to use *plugins* package (http://hackage.haskell.org/package/plugins-1.4.1)

Unfortunately, it looks broken. Anybody can fix it?

Try putting an upper bound in the constraint for `base'; since there's no upper bound, cabal-install defaults to "< 4", which conflicts with plugins _needing_ base >= 4. I think not just build-depend problem, something broken in plugins source code, below is compile error:

.... src/System/Plugins/Process.hs:59:4: Warning: A do-notation statement discarded a result of type GHC.Conc.ThreadId. Suppress this warning by saying "_ <- forkIO ((>>) E.evaluate (length errput) return GHC.Unit.())", or by using the flag -fno-warn-unused-do-bind [ 3 of 15] Compiling System.Plugins.Parser ( src/System/Plugins/Parser.hs, dist/build/System/Plugins/Parser.o )

src/System/Plugins/Parser.hs:31:0: Warning: The import of `Data.Either' is redundant except perhaps to import instances from `Data.Either' To import instances alone, use: import Data.Either() [ 4 of 15] Compiling System.Plugins.PackageAPI ( src/System/Plugins/PackageAPI.hs, dist/build/System/Plugins/PackageAPI.o )

src/System/Plugins/PackageAPI.hs:61:24: Not in scope: `package'

src/System/Plugins/PackageAPI.hs:62:25: Not in scope: `package' ... Looks plugins just work on base-4 and Cabal-1.6. Anyone can fix it make it works with Cabal-1.8?

Thanks, -- Andy

...

The hint library might also do what you want: http://hackage.haskell.org/package/hint

Wow, i didn't know it.

Infact, i want implement a *fully* hot-swapping feature for Haskell application, not just re-compile/re-load module in runtime like Yi/Xmonad, i have code do that. I want to a Haskell interpreter to evaluation expression/module in runtime, then application can develop itself in runtime, don't need restart.

hint library looks interesting.....

Thanks for hint link.

-- Andy

Yuras Shumovich writes:

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src/System/Plugins/Process.hs:59:4:     Warning: A do-notation statement discarded a result of type GHC.Conc.ThreadId.              Suppress this warning by saying "_ <- forkIO                                                      ((>>)                                                         E.evaluate (length errput)                                                         return GHC.Unit.())",              or by using the flag -fno-warn-unused-do-bind [ 3 of 15] Compiling System.Plugins.Parser ( src/System/Plugins/Parser.hs, dist/build/System/Plugins/Parser.o )

src/System/Plugins/Parser.hs:31:0:     Warning: The import of `Data.Either' is redundant                except perhaps to import instances from `Data.Either'              To import instances alone, use: import Data.Either() [ 4 of 15] Compiling System.Plugins.PackageAPI ( src/System/Plugins/PackageAPI.hs, dist/build/System/Plugins/PackageAPI.o )

src/System/Plugins/PackageAPI.hs:61:24: Not in scope: `package'

src/System/Plugins/PackageAPI.hs:62:25: Not in scope: `package' ...

You can just replace 'package' with 'sourcePackageId' After replace 'package' with 'sourcePackageId'

Another error : ------------------------------> error start <------------------------------ Preprocessing library plugins-1.4.1... Building plugins-1.4.1... [ 7 of 15] Compiling System.Plugins.Env ( src/System/Plugins/Env.hs, dist/build/System/Plugins/Env.o ) src/System/Plugins/Env.hs:315:45: Couldn't match expected type `PackageDBStack' against inferred type `PackageDB' In the second argument of `getInstalledPackages', namely `(SpecificPackageDB f)' In a stmt of a 'do' expression: pkgIndex <- getInstalledPackages silent (SpecificPackageDB f) pc In the expression: do { pc <- configureAllKnownPrograms silent defaultProgramConfiguration; pkgIndex <- getInstalledPackages silent (SpecificPackageDB f) pc; return $ allPackages pkgIndex } cabal: Error: some packages failed to install: plugins-1.4.1 failed during the building phase. The exception was: ExitFailure 1 ------------------------------> error end <------------------------------ Thanks, -- Andy

Yuras Shumovich writes:

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Another error :

------------------------------> error start <------------------------------ Preprocessing library plugins-1.4.1... Building plugins-1.4.1... [ 7 of 15] Compiling System.Plugins.Env ( src/System/Plugins/Env.hs, dist/build/System/Plugins/Env.o )

src/System/Plugins/Env.hs:315:45:    Couldn't match expected type `PackageDBStack'           against inferred type `PackageDB'    In the second argument of `getInstalledPackages', namely        `(SpecificPackageDB f)'    In a stmt of a 'do' expression:        pkgIndex <- getInstalledPackages silent (SpecificPackageDB f) pc    In the expression:        do { pc <- configureAllKnownPrograms                     silent defaultProgramConfiguration;             pkgIndex <- getInstalledPackages silent (SpecificPackageDB f) pc;               return $ allPackages pkgIndex } cabal: Error: some packages failed to install: plugins-1.4.1 failed during the building phase. The exception was: ExitFailure 1 ------------------------------> error end   <------------------------------

It looks like it is not the last error :) Yes, it's not last error. :)

I got another error: ------------------------------> error start <------------------------------ [ 8 of 15] Compiling System.MkTemp ( src/System/MkTemp.hs, dist/build/System/MkTemp.o ) src/System/MkTemp.hs:214:26: Couldn't match expected type `IOError' against inferred type `Maybe FilePath -> IOException' In the first argument of `ioError', namely `err' In the expression: ioError err In the expression: if b then ioError err else openFile f ReadWriteMode cabal: Error: some packages failed to install: plugins-1.4.1 failed during the building phase. The exception was: ExitFailure 1 ------------------------------> error end <------------------------------ Thank you very much help me so far. I hope Don can taking some time to fix those problems. Cheers, -- Andy

Yuras Shumovich writes:

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I got another error: ------------------------------> error start <------------------------------ [ 8 of 15] Compiling System.MkTemp    ( src/System/MkTemp.hs, dist/build/System/MkTemp.o )

src/System/MkTemp.hs:214:26:    Couldn't match expected type `IOError'           against inferred type `Maybe FilePath -> IOException'    In the first argument of `ioError', namely `err'    In the expression: ioError err    In the expression:        if b then ioError err else openFile f ReadWriteMode cabal: Error: some packages failed to install: plugins-1.4.1 failed during the building phase. The exception was: ExitFailure 1 ------------------------------> error end   <------------------------------

I checked out sources and tried it myself. You need:

[mkTemp:217] err = IOError Nothing AlreadyExists "open0600" "already exists" Nothing Nothing

if you will get error in readBinIface', then [Load.hs:725] e <- newHscEnv undefined undefined

if you will get error in loadFunction__, then [Load.hs: 441] ptr@(Ptr addr) <- withCString symbol c_lookupSymbol

It should compile now, but I don't know will it work or no. Thanks for your time and help.

I think best to let author fix those problem. Cheers, -- Andy