{3} Feature requests by priority (506 matches)

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Ticket Summary Component Version Priority Severity Milestone Owner Status Created
#9351 add ability to version symbols .c for packages with C code Compiler 7.8.3 normal new Jul 23, 2014
#9360 GHCi: Behave nicely on `-e`, like `ghc` and other programs GHCi 7.8.2 normal lukyanov new Jul 24, 2014
#9365 Make command key in GHCi configurable GHCi 7.8.3 normal new Jul 25, 2014
#9376 More informative error messages when closed type families fail to simplify Compiler (Type checker) 7.8.2 normal new Jul 29, 2014
#9378 Make unknown LANGUAGE pragmas a warning, not an error Compiler 7.8.2 normal new Jul 29, 2014
#9394 Show data/type family instances with ghci's :info command GHCi 7.6.3 normal new Aug 2, 2014
#9419 Machine-readable output for profiling Profiling 7.9 normal ezyang new Aug 7, 2014
#9427 Do finer-grained dependency analysis to infer more general kinds on type/class declarations Compiler (Type checker) 7.8.2 normal new Aug 8, 2014
#9429 Alternative to type family Any Compiler 7.9 normal new Aug 10, 2014
#9430 implement more arithmetic operations natively in the LLVM backend Compiler (LLVM) 7.9 normal new Aug 10, 2014
#9431 integer-gmp small Integer multiplication does two multiplications on x86 Compiler (NCG) 7.9 normal new Aug 11, 2014
#9441 CSE should deal with letrec Compiler 7.8.2 normal new Aug 14, 2014
#9476 Implement late lambda-lifting Compiler 7.8.2 normal nfrisby new Aug 20, 2014
#9478 Partial type signatures Compiler 7.8.2 normal new Aug 20, 2014
#9499 Add -prelude-is flag Compiler 7.9 normal agibiansky new Aug 21, 2014
#9507 ghc-pkg mode to query by package-key ghc-pkg 7.9 normal ezyang new Aug 23, 2014
#9571 nofib should use criterion-style bootstrapping/sampling NoFib benchmark suite 7.9 normal new Sep 10, 2014
#9591 Add custom "Wiki" field in Trac Trac & Git normal hvr new Sep 15, 2014
#9611 Suggest the cause of "No instance" errors involving multiple versions of a package Compiler 7.8.3 normal new Sep 19, 2014
#9613 when giving an error "No instance for C (a -> b)", suggest that a function may be underapplied Compiler (Type checker) 7.8.3 normal new Sep 19, 2014
#9617 Implement `quot` and `rem` using `quotRem`; implement `div` and `mod` using `divMod` Compiler 7.9 normal new Sep 19, 2014
#9622 GHCi command to solve a constraint Compiler (Type checker) 7.8.3 normal new Sep 21, 2014
#9624 "Unlikely constraint" recognition Compiler (Type checker) 7.8.3 normal new Sep 22, 2014
#9632 Promotable type synonyms (or: synonyms to promoted types) Compiler (Type checker) normal new Sep 25, 2014
#9637 Type level programming needs an error function Compiler 7.8.3 normal new Sep 26, 2014
#9642 LANGUAGE pragma synonyms Compiler 7.9 normal new Sep 28, 2014
#9645 Optimize range checks for primitive types Compiler 7.9 normal new Sep 29, 2014
#9659 Offer branchless conditional (CMOV) primop Compiler 7.8.3 normal new Oct 2, 2014
#9661 Branchless ==# is compiled to branchy code Compiler 7.9 normal bgamari new Oct 3, 2014
#9667 Type inference is weaker for GADT than analogous Data Family Compiler (Type checker) 7.8.3 normal new Oct 5, 2014
#9688 Improve the interaction between CSE and the join point transformation Compiler 7.9 normal new Oct 13, 2014
#9690 in GHCi map `:editNNN` to $EDITOR +NNN GHCi 7.8.3 normal new Oct 13, 2014
#9699 TH function to list names in scope Template Haskell 7.8.3 normal new Oct 16, 2014
#9700 Support C structures in Haskell FFI Compiler 7.8.3 normal new Oct 16, 2014
#9702 Offer a weaker name shadowing warning Compiler 7.9 normal new Oct 18, 2014
#9724 reexport IsList class from a trustworthy module Core Libraries 7.8.3 normal ekmett new Oct 25, 2014
#9731 Inductive type definitions on Nat Compiler 7.8.3 normal new Oct 27, 2014
#9756 Warn about unnecessary unsafeCoerce Compiler (Type checker) 7.9 normal new Nov 3, 2014
#9784 Improve error message for misplaced quote inside promoted qualified type Compiler (Parser) 7.8.3 normal new Nov 8, 2014
#9789 Make GHC accept .format+lhs as extension for literate haskell files Compiler 7.9 normal merijn new Nov 11, 2014
#9790 Produce coercion rules for derived Functor instances Compiler 7.9 normal new Nov 11, 2014
#9819 Create typesafe method of obtaining dictionary types from class definitions, and constraint objects from dictionary types Compiler normal new Nov 21, 2014
#9835 Add bindings for marshaling to/from mpz_t libraries (other) 7.8.3 normal new Nov 25, 2014
#9840 Permit empty closed type families Compiler (Type checker) 7.8.3 normal patch Nov 27, 2014
#9887 No message when GCHI reusing compiled code GHCi 7.8.3 normal new Dec 15, 2014
#9898 Wanted: higher-order type-level programming Compiler (Type checker) 7.8.3 normal new Dec 18, 2014
#9923 Offer copy-on-GC sliced arrays Runtime System 7.11 normal simonmar new Dec 24, 2014
#9931 Option to truncate Show output in ghci REPL Compiler 7.8.4 normal new Dec 27, 2014
#9938 GHC's link step needs to be told which packages to link Compiler 7.11 normal new Dec 29, 2014
#9948 Recommend class constraint instead of instance constraint Compiler 7.8.4 normal new Jan 1, 2015
#9952 Add -g<level> Compiler 7.8.4 normal new Jan 2, 2015
#9974 Allow more general structural recursion without UndecidableInstances Compiler (Type checker) 7.11 normal new Jan 9, 2015
#9990 Top level module identifiers shadow imported identifiers Compiler normal new Jan 15, 2015
#9993 PostfixOperators doesn't work for types Compiler 7.8.4 normal new Jan 16, 2015
#9995 :info enhancements GHCi 7.8.4 normal new Jan 16, 2015
#9996 Support symbols in GHCi tab completion GHCi 7.8.4 normal new Jan 16, 2015
#10006 Add baseline ellipsis as unicode alternative to «..» Compiler (Parser) 7.8.4 normal new Jan 19, 2015
#10014 Data.Array.Base.elems needlessly calls bounds. Core Libraries 7.8.4 normal ekmett new Jan 22, 2015
#10016 UNPACK support for existentials Compiler 7.8.4 normal new Jan 23, 2015
#10035 Harbormaster doesn't post to Differential on success Trac & Git normal new Jan 27, 2015
#10039 Make Const (Control.Applicative) kind polymorphic in its second argument Core Libraries 7.8.4 normal ekmett new Jan 28, 2015
#10049 Lower level memcpy primop Compiler 7.8.4 normal new Jan 30, 2015
#10064 Add support for "foo"## literals to MagicHash Compiler 7.8.4 normal new Feb 4, 2015
#10073 Idris REPL is pretty and we can too GHCi 7.8.4 normal new Feb 9, 2015
#10076 Don't suppress warnings in the presence of errors Compiler 7.11 normal new Feb 10, 2015
#10084 Data.List should have a takeLastN function libraries/base 7.8.4 normal new Feb 12, 2015
#10087 DefaultSignatures: error message mentions internal name Compiler (Type checker) 7.8.4 normal new Feb 14, 2015
#10089 feature: warn about unused data definitions (with typeclass instances) Compiler 7.8.4 normal new Feb 15, 2015
#10094 Template Haskell cannot represent type wildcards Template Haskell 7.10.1-rc1 normal adamgundry new Feb 16, 2015
#10116 Closed type families: Warn if it doesn't handle all cases Compiler 7.8.4 normal new Feb 25, 2015
#10131 improve error message for build on noexec-mounted device Compiler 7.8.4 normal new Mar 2, 2015
#10163 Export typeRepKinds in Data.Typeable libraries/base 7.10.1-rc3 normal new Mar 17, 2015
#10217 Provide link to GPG signature on download page. Documentation normal new Mar 30, 2015
#10225 GHC does not specialize based on type equality Compiler 7.10.1 normal new Apr 1, 2015
#10235 Get profiling info without stopping program Compiler 7.10.1 normal new Apr 3, 2015
#10249 Suboptimal error message with deferred type errors GHCi 7.10.1 normal new Apr 6, 2015
#10267 Add support for typed holes in Template Haskell Template Haskell 7.10.1 normal jstolarek new Apr 8, 2015
#10283 Make it possible to suppress warnings produced by -fdefer-type-errors Compiler (Type checker) 7.10.1 normal new Apr 10, 2015
#10284 Create a dedicated `TypeError` exception type Compiler 7.10.1 normal new Apr 10, 2015
#10297 Floating instance for Data.Fixed libraries/base 7.10.1 normal new Apr 14, 2015
#10318 Cycles in class declaration (via superclasses) sometimes make sense. Compiler (Type checker) 7.10.1 normal new Apr 17, 2015
#10323 Add Android and iOS Operating Systems in Trac Trac & Git normal hvr new Apr 18, 2015
#849 Offer control over branch prediction Compiler 6.4.2 normal normal 7.12.1 new Aug 8, 2006
#1965 Allow unconstrained existential contexts in newtypes Compiler 6.8.1 normal minor 7.12.1 new Dec 8, 2007
#2168 ghci should show haddock comments for identifier GHCi 6.8.2 normal normal 7.12.1 new Mar 22, 2008
#3085 warn about language extensions that are not used Compiler 6.10.1 normal normal 7.12.1 new Mar 11, 2009
#3217 Make GHCi have separate flags for interactive Haskell expressions Compiler 6.10.2 normal normal 7.12.1 new May 11, 2009
#3693 Show stack traces Runtime System 6.10.4 normal 7.12.1 Tarrasch new Nov 26, 2009
#3984 Handle multiline input in GHCi history GHCi 6.12.1 normal 7.12.1 new Apr 13, 2010
#4092 Floating point manipulation : ulp and coerce IEEE-754 Double# into Word64# Compiler 6.12.2 normal 7.12.1 new May 24, 2010
#4102 Bit manipulation built-ins Core Libraries 6.12.2 normal 7.12.1 ekmett new May 29, 2010
#4259 Relax restrictions on type family instance overlap Compiler (Type checker) 6.12.1 normal 7.12.1 new Aug 16, 2010
#4385 Type-level natural numbers Compiler (Type checker) normal 7.12.1 diatchki new Oct 11, 2010
#4470 Loop optimization: identical counters Compiler normal 7.12.1 new Nov 4, 2010
#4900 Consider usage files in the GHCi recompilation check Compiler normal 7.12.1 new Jan 18, 2011
#4937 Remove indirections caused by sum types, such as Maybe Compiler 7.0.1 normal 7.12.1 new Jan 31, 2011
#5075 CPR optimisation for sum types if only one constructor is used Compiler 7.0.3 normal 7.12.1 simonpj new Apr 1, 2011
#5108 Allow unicode sub/superscript symbols in both identifiers and operators Compiler (Parser) 7.1 normal 7.12.1 infoneeded Apr 12, 2011
#5218 Add unpackCStringLen# to create Strings from string literals Compiler 7.0.3 normal 7.12.1 thoughtpolice new May 25, 2011
#5239 Em-dash for "--" with UnicodeSyntax. Compiler (Parser) 7.0.3 normal 7.12.1 new Jun 5, 2011
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