{3} Feature requests by priority (622 matches)

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Ticket Summary Component Version Priority Severity Milestone Owner Status Created
#1800 Template Haskell support for running functions defined in the same module Template Haskell 7.7 normal normal new Oct 24, 2007
#1826 unable to list source for <exception thrown> should never occur GHCi 6.8.1 normal normal new Nov 4, 2007
#1921 change default to support extensions that involve a change of syntax Compiler 6.8.1 normal normal new Nov 23, 2007
#1974 length "foo" doesn't work with -XOverloadedStrings Compiler 6.8.1 normal minor new Dec 12, 2007
#2041 Allow splicing in concrete syntax Template Haskell 6.8.2 normal normal new Jan 13, 2008
#2101 Allow some form of type-level lemma Compiler 6.8.2 normal normal new Feb 15, 2008
#2180 Any installed signal handler stops deadlock detection, but XCPU never happens in a deadlock Runtime System 6.9 normal minor Baughn new Mar 27, 2008
#2200 big static random access arrays Core Libraries 6.8.2 normal normal new Apr 6, 2008
#2207 Load the interface details for GHC.* even without -O Compiler 6.8.2 normal normal new Apr 10, 2008
#2344 oddity with package prefixes for data constructors GHCi 6.9 normal normal new Jun 4, 2008
#2403 caching for runghc (runhaskell) Compiler normal normal jsnx new Jun 29, 2008
#2427 Allow compilation of source from stdin Compiler 6.8.3 normal minor new Jul 7, 2008
#2551 Allow multiple modules per source file Compiler 6.9 normal normal new Aug 28, 2008
#2630 installed packages should have a src-dirs field, for access to optionally installed sources Package system 6.9 normal normal new Sep 28, 2008
#2742 The -> in ViewPatterns binds more weakly than infix data constructors. Compiler (Parser) 6.10.1 normal normal new Nov 4, 2008
#2893 Implement "Quantified contexts" proposal Compiler 6.10.1 normal normal new Dec 23, 2008
#2895 Implement the "Class System Extension" proposal Compiler 6.10.1 normal normal new Dec 24, 2008
#3021 A way to programmatically insert marks into heap profiling output Profiling 6.10.1 normal normal new Feb 12, 2009
#3205 Generalized isomorphic deriving Compiler 6.10.2 normal normal new May 3, 2009
#3215 Valgrind support Runtime System 6.10.3 normal trivial new May 10, 2009
#3283 Selective disabling of unused bind warnings Compiler 6.10.2 normal normal new Jun 8, 2009
#3490 Relax superclass restrictions Compiler 6.10.4 normal minor DevarshDesai new Sep 8, 2009
#3541 Allow local foreign imports Compiler (FFI) 6.12.2 normal normal DevarshDesai new Sep 25, 2009
#3545 As-patterns for type signatures Compiler (Type checker) 6.11 normal normal new Sep 27, 2009
#3557 CPU Vector instructions in GHC.Prim Data Parallel Haskell 6.11 normal normal new Oct 2, 2009
#3577 Complete support for Data Parallel Haskell Data Parallel Haskell 6.13 normal normal rl new Oct 12, 2009
#3583 Default view patterns Compiler 6.10.4 normal normal new Oct 13, 2009
#3601 When running two or more instances of GHCi, persistent history is only kept for the first one GHCi 6.10.4 normal minor new Oct 20, 2009
#3615 GHCi doesn't allow the use of imported data contructors GHCi 6.10.4 normal minor new Oct 27, 2009
#3769 Add manpages for programs installed alongside ghc Documentation 6.12.1 normal new Dec 16, 2009
#3919 Or-patterns as GHC extension Compiler normal new Mar 14, 2010
#4091 Parse error on curried context of instance declaration Compiler 6.12.2 normal new May 24, 2010
#4894 Missing improvement for fun. deps. Compiler (Type checker) 7.1 normal new Jan 17, 2011
#5324 Locally-scoped RULES Compiler 7.0.3 normal new Jul 15, 2011
#5344 CSE should look through coercions Compiler 7.0.3 normal simonpj new Jul 25, 2011
#5416 Local modules and Template Haskell declaration splices Template Haskell 7.2.1 normal new Aug 16, 2011
#6030 Typeclass constraint should pick the OverloadedString type. Compiler 7.4.1 normal new Apr 22, 2012
#7261 ghci's :info and :browse break encapsulation GHCi 7.6.1 normal new Sep 21, 2012
#7291 hp2ps should cope with incomplete data Profiling 7.6.1 normal new Oct 2, 2012
#7330 Data Parallel Haskell (DPH) isn't usable yet. Data Parallel Haskell 7.6.1 normal benl new Oct 15, 2012
#7662 Improve GC of mutable objects Runtime System 7.7 normal new Feb 5, 2013
#8423 Less conservative compatibility check for closed type families Compiler (Type checker) 7.7 normal new Oct 8, 2013
#8560 Derive some generic representation for GADTs Compiler (Type checker) 7.7 normal new Nov 23, 2013
#8610 Rebuild on a definition-based granularity Compiler 7.6.3 normal new Dec 11, 2013
#8828 Type pattern synonyms Compiler (Type checker) 7.6.2 normal new Feb 27, 2014
#9866 ssh pubkey self-mgmt Trac & Git normal hvr new Dec 5, 2014
#9883 Make OverloadedLists more usable by splitting the class interface External Core 7.8.3 normal new Dec 13, 2014
#10204 Odd interaction between rank-2 types and type families Compiler (Type checker) 7.10.1 normal new Mar 27, 2015
#10798 Signatures with only types should not be included in unit keys Package system 7.11 normal ezyang new Aug 27, 2015
#11081 Implement Introspective Template Haskell Template Haskell 7.10.2 normal new Nov 13, 2015
#12606 Linux (ELF) Support for "ghc -static -shared" Compiler 8.0.1 normal new Sep 20, 2016
#849 Offer control over branch prediction Compiler 6.4.2 normal normal simonmar new Aug 8, 2006
#1965 Allow unconstrained existential contexts in newtypes Compiler 6.8.1 normal minor new Dec 8, 2007
#2168 ghci should show haddock comments for identifier GHCi 6.8.2 normal normal new Mar 22, 2008
#3085 warn about language extensions that are not used Compiler 6.10.1 normal normal new Mar 11, 2009
#3984 Handle multiline input in GHCi history GHCi 6.12.1 normal new Apr 13, 2010
#4092 Floating point manipulation : ulp and coerce IEEE-754 Double# into Word64# Compiler 6.12.2 normal new May 24, 2010
#4102 Bit manipulation built-ins Core Libraries 6.12.2 normal new May 29, 2010
#4259 Relax restrictions on type family instance overlap Compiler (Type checker) 6.12.1 normal new Aug 16, 2010
#4385 Type-level natural numbers Compiler (Type checker) normal diatchki new Oct 11, 2010
#4470 Loop optimization: identical counters Compiler normal new Nov 4, 2010
#4806 Make error message more user friendly when module is not found because package is unusable Compiler 7.0.1 normal bollu new Nov 30, 2010
#4900 Consider usage files in the GHCi recompilation check Compiler normal new Jan 18, 2011
#4937 Remove indirections caused by sum types, such as Maybe Compiler 7.0.1 normal new Jan 31, 2011
#5075 CPR optimisation for sum types if only one constructor is used Compiler 7.0.3 normal simonpj new Apr 1, 2011
#5108 Allow unicode sub/superscript symbols in operators Compiler (Parser) 7.1 normal new Apr 12, 2011
#5218 Add unpackCStringLen# to create Strings from string literals Compiler 7.0.3 normal thoughtpolice patch May 25, 2011
#5392 Warnings about impossible MPTCs would be nice Compiler 7.0.4 normal new Aug 8, 2011
#5467 Template Haskell: support for Haddock comments Template Haskell 7.2.1 normal new Sep 7, 2011
#5556 Support pin-changing on ByteArray#s Compiler 7.2.1 normal new Oct 13, 2011
#5590 "guarded instances": instance selection can add extra parameters to the class Compiler (Type checker) 7.2.1 normal simonpj new Oct 28, 2011
#5619 Shorter qualified import statements Compiler 7.2.1 normal new Nov 9, 2011
#5672 parBufferWHNF could be less subtle Core Libraries 7.2.1 normal duncan new Dec 2, 2011
#5813 Offer a compiler warning for failable pattern matches Compiler 7.2.2 normal new Jan 24, 2012
#5823 FFI and CAPI needs {-# INCLUDE #-} back? Compiler 7.5 normal new Jan 28, 2012
#5834 Allow both INLINE and INLINABLE for the same function Compiler 7.5 normal new Jan 30, 2012
#5910 Holes with other constraints Compiler (Type checker) 7.5 normal new Mar 2, 2012
#5927 A type-level "implies" constraint on Constraints Compiler (Type checker) 7.4.1 normal new Mar 11, 2012
#5941 Add compilation stage plugins Compiler 7.4.1 normal new Mar 15, 2012
#5972 option to suppress (Monomorphic) record selector functions Compiler normal new Mar 27, 2012
#5985 Type operators are not accepted as variables in contexts Compiler 7.5 normal new Apr 2, 2012
#6024 Allow defining kinds alone, without a datatype Compiler (Type checker) 7.5 normal infoneeded Apr 19, 2012
#6089 Allow declaration splices inside declaration brackets Template Haskell 7.4.1 normal simonpj new May 11, 2012
#7048 Add the ability to statically define a `FunPtr` to a haskell function Compiler 7.4.2 normal new Jul 4, 2012
#7081 arrow analogs of lambda case and multi-way if Compiler 7.5 normal new Jul 16, 2012
#7104 Add tryWriteTBQueue to Control.Concurrent.STM.TBQueue Core Libraries 7.4.2 normal simonmar new Jul 30, 2012
#7140 Allow type signature in export list Compiler (Type checker) normal new Aug 13, 2012
#7152 Add flag to configure that skips overwriting of symlinks on install Build System 7.4.2 normal thoughtpolice new Aug 15, 2012
#7158 GHCi commands case insensitive GHCi 7.6.1-rc1 normal new Aug 17, 2012
#7169 Warning for incomplete record field label used as function Compiler 7.7 normal new Aug 20, 2012
#7204 Use a class to control FFI marshalling Compiler 7.4.2 normal new Aug 31, 2012
#7275 Give more detailed information about PINNED data in a heap profile Profiling 7.6.1 normal new Sep 28, 2012
#7283 Specialise INLINE functions Compiler 7.7 normal new Sep 30, 2012
#7285 mkWeakMVar is non-compositional Core Libraries 7.6.1 normal new Oct 1, 2012
#7300 Allow CAFs kept reachable by FFI to be forcibly made unreachable for GC Compiler (FFI) 7.4.1 normal new Oct 5, 2012
#7331 Allow the evaluation of declaration splices in GHCi GHCi 7.6.1 normal new Oct 15, 2012
#7335 Need for extra warning pragma for accidental pattern matching in do blocks Compiler 7.6.1 normal new Oct 16, 2012
#7337 GHC does not generate great code for bit-level rotation Compiler (NCG) 7.6.1 normal new Oct 16, 2012
#7395 DefaultSignatures conflict with default implementations Compiler 7.6.1 normal new Nov 5, 2012
#7401 Can't derive instance for Eq when datatype has no constructor, while it is trivial do do so. Compiler 7.6.1 normal new Nov 9, 2012
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