Awesome :) you mentioned transformers package, did you have a look at the issues I had with using monad transformers with monad stack containing IO? I posted it a few weeks ago here: http://www.haskell.org/pipermail/jhc/2011-January/000862.html
> From: [email protected] > Date: Sat, 29 Jan 2011 20:47:20 -0800 > To: [email protected]; [email protected] > Subject: [jhc] ANNOUNCE: jhc 0.7.7 is out. > > Announcing jhc 0.7.7! This release fixes a large number of bugs that cropped > up > when compiling haskell out in the wild as well as adds some more features. A > major one being the garbage collector is enabled by default. > > http://repetae.net/computer/jhc/ > > Changes: (including some changes from the unannounced 0.7.6 release) > > * The Garbage Collector is now enabled by default. > * new standard libraries > * transformers > * parsec > * QuickCheck > * report proper errors with line numbers for various issues with compiled > code. > * New option '-C' that compiles to C code and stops, useful for targeting > other > platforms or building shared libraries. > * Nintendo Wii added as target (thanks to Korcan Hussein) > * Fix major performance bug that kept WRAPPERs from being inlined in > certain places. > * Typechecking speed greatly increased. > * monomorphism-restriction flag is now respected > * empty class contexts now work > * unicode in haskell source supported now > * Type Defaulting now works properly > * RULES parse like ghc now for compatibility > * 'do' 'where' on same indent now parses > * Build system fixes and cleanups > * irrefutable lambda pattern bindings desugar properly now. > * GHC parsing regression tests have been ported to jhc, helped find > and fix many bugs. > * Certain optimizations would discard RULES, these have been fixed. > * Removed quadratic behavior in optimizer, speeds things up noticibly. > * Garbage collector improvements, caches are pre-initialized. > * Fix shiftL/R implementations for built in types. > * All Num, Real, and Integral magic removed from compiler. This is a very > good thing. > * improved help messages > > John > > _______________________________________________ > jhc mailing list > [email protected] > http://www.haskell.org/mailman/listinfo/jhc
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