{3} Feature requests by priority (581 matches)

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Ticket Summary Component Version Priority Severity Milestone Owner Status Created
#7635 SafeHaskell implying other options Compiler 7.6.1 normal new Jan 28, 2013
#7637 split-objs not supported for ARM Compiler 7.7 normal new Jan 29, 2013
#7647 UNPACK polymorphic fields Compiler 7.6.1 normal new Feb 1, 2013
#7741 Add SIMD support to x86/x86_64 NCG Compiler (NCG) 7.7 normal new Mar 5, 2013
#7763 Resource limits for Haskell Profiling 7.7 normal simonmar new Mar 12, 2013
#7808 data families and TH names do not mix well (e.g. cannot use TH deriving) Template Haskell 7.6.2 normal new Apr 3, 2013
#7845 RebindableSyntax should allow rebinding tuples and lists Compiler 7.7 normal new Apr 19, 2013
#7870 Compilatio​n errors break the complexity encapsulat​ion on DSLs, impairs success in industry Compiler (Type checker) 7.7 normal new Apr 27, 2013
#8012 Warn when using Enum instance for Float or Double Compiler 7.6.3 normal new Jun 25, 2013
#8015 Show warning when file-header pragma is used after module keyword Compiler 7.6.3 normal new Jun 26, 2013
#8107 need types to express constant argument for primop correctness Compiler 7.7 normal carter new Aug 1, 2013
#8252 prefetch# isn't as general as it should be (currently the general version isn't type safe) Compiler 7.7 normal new Sep 7, 2013
#8288 add idris style EDSL support for deep embedding lambdas Compiler 7.6.3 normal new Sep 13, 2013
#8321 improve basic block layout on LLVM backend by predicting stack/heap checks Compiler (LLVM) 7.7 normal rwbarton new Sep 17, 2013
#8364 equip GHC with an accurate internal model of floating point Compiler 7.6.3 normal new Sep 26, 2013
#8398 reify module list in TH Template Haskell 7.7 normal new Oct 2, 2013
#8429 GHC.Base.{breakpoint, breakpointCond} do nothing Compiler 7.6.3 normal iand675 new Oct 10, 2013
#8460 Annotation reification with types in TH Template Haskell 7.7 normal infoneeded Oct 19, 2013
#8581 Pattern synonym used in an expression context could have different constraints to pattern used in a pattern context Compiler normal new Dec 1, 2013
#8695 Arithmetic overflow from (minBound :: Int) `quot` (-1) Documentation 7.6.3 normal new Jan 24, 2014
#8751 Show parenthesised output of expressions in ghci GHCi 7.6.3 normal infoneeded Feb 8, 2014
#9089 Local .ghci_history GHCi 7.8.2 normal new May 8, 2014
#9289 add anyToAddr# :: (#a#)-> Addr# primop (inverse of addrToAny#) Compiler 7.8.2 normal new Jul 9, 2014
#9342 Branchless arithmetic operations Compiler (CodeGen) 7.8.3 normal new Jul 21, 2014
#9352 Allow `State# s` argument/result types in `ccall` FFI imports Compiler (Type checker) 7.8.2 normal new Jul 23, 2014
#9649 symbols should/might be type level lists of chars Compiler normal ibotty new Sep 29, 2014
#9671 Allow expressions in patterns Compiler normal new Oct 8, 2014
#9743 Expose ghc-bin code as a library Compiler 7.8.3 normal new Oct 30, 2014
#9795 Debug.Trace.trace is too strict libraries/base 7.8.3 normal new Nov 12, 2014
#9846 GHC --make should also look for .hi, not only for .hs Driver normal new Nov 28, 2014
#9908 Improve enumFromX support for OverloadedLists Core Libraries 7.9 normal new Dec 19, 2014
#10071 Implement deprecation-warnings for class-methods to non-method transitions Compiler 7.8.4 normal new Feb 9, 2015
#10674 Expose OSThreadID and assorted functions from Haskell Runtime System 7.10.1 normal new Jul 23, 2015
#10681 Teach GHC to interpret all hs files as two levels of hs-boot files (abstract types only/full types + values) Compiler 7.11 normal ezyang new Jul 24, 2015
#10708 Rejection of constant functions defined using conditional pattern matching Compiler 7.10.1 normal new Jul 29, 2015
#10723 Make declarations in signatures "weakly bound" until they are used Package system 7.11 normal ezyang new Aug 1, 2015
#10741 add flag to dump module and package dependencies Compiler normal new Aug 5, 2015
#10756 Allow users to indicate inaccessible patterns Compiler 7.10.2 normal new Aug 7, 2015
#10776 DataKinds promotion of String -> Symbol and Natural -> Nat Compiler (Type checker) 7.10.2 normal new Aug 16, 2015
#10809 Add prefetch{Small}{Mutable}Array[0..3]# Runtime System 7.10.2 normal simonmar new Aug 29, 2015
#10823 Don't mark functions with annotations as dead Template Haskell 7.10.2 normal new Sep 1, 2015
#10827 GHCi should support interpeting multiple packages/units with separate DynFlags GHC API 7.11 normal new Sep 2, 2015
#10832 Generalize injective type families Compiler (Type checker) 7.11 normal jstolarek new Sep 3, 2015
#10833 Use injective type families when dealing with givens Compiler (Type checker) 7.10.2 normal new Sep 3, 2015
#10841 Run handler on STM retry libraries (other) 7.10.2 normal new Sep 4, 2015
#10842 "Reactive" Template Haskell Template Haskell 7.10.2 normal new Sep 4, 2015
#10843 Allow do blocks without dollar signs as arguments Compiler (Parser) 7.10.2 normal agibiansky new Sep 5, 2015
#10887 Please export GhcMake.downsweep and make it return a partial module graph in case of errors Compiler 7.10.2 normal new Sep 16, 2015
#10893 Consistent error message suggestions for using language extensions Compiler 7.11 normal new Sep 18, 2015
#10903 Add an option to infer CallStack implicit parameters Compiler 7.11 normal new Sep 21, 2015
#10906 `SPECIALIZE instance` could be better Compiler 7.10.2 normal new Sep 21, 2015
#10912 Support for out of the box static linking Package system 7.10.2 normal new Sep 23, 2015
#10925 GHC should inform where unknown identifiers originate whenever possible Compiler 7.10.2 normal new Oct 2, 2015
#10933 REMOVED pragma Compiler 7.10.2 normal new Oct 5, 2015
#10956 Allow default keyboard behavior to be easily overriden Runtime System 7.8.3 normal new Oct 10, 2015
#10963 Beginner-targeted language extension Compiler 7.10.2 normal patch Oct 13, 2015
#10976 Applicative Comprehensions Compiler normal new Oct 16, 2015
#10978 Anonymous type instances Compiler (Type checker) 7.8.3 normal new Oct 16, 2015
#11014 re-order GHC type errors for clarity Compiler 7.11 normal new Oct 24, 2015
#11035 Add implicit call-stacks to partial functions in base Compiler 7.10.2 normal new Oct 29, 2015
#11078 Access to module renaming with reifyModule, in TemplateHaskell Template Haskell 7.10.2 normal new Nov 11, 2015
#11094 Cost-center heap profiler should be able to emit samples to eventlog Compiler 7.10.2 normal new Nov 15, 2015
#11115 Indicate missing associated type instances Compiler (Type checker) 7.10.2 normal new Nov 20, 2015
#11134 Limit frequency of idle GCs Runtime System 7.10.2 normal dcturner new Nov 25, 2015
#11169 Remove the word "skolem" from user error messages Compiler (Type checker) 7.10.2 normal new Dec 6, 2015
#11179 Allow plugins to access "dead code" Compiler 7.10.2 normal new Dec 8, 2015
#11186 Give strong preference to type variable names in scope when reporting hole contexts Compiler (Type checker) 7.10.2 normal new Dec 9, 2015
#11270 "Unusable UNPACK pragma" warnings should be printed even without -O Compiler 7.11 normal new Dec 20, 2015
#11281 Way to run --make and -M simultaneously Compiler 7.11 normal new Dec 24, 2015
#11286 ghc-pkg library Package system 7.11 normal new Dec 25, 2015
#11309 Warn on shady data constructor export Compiler 7.10.3 normal new Dec 28, 2015
#11335 Add instance (Ix a, Read a, Read b) => Read (UArray a b) libraries (other) 7.8.3 normal new Jan 1, 2016
#11342 Character kind Compiler 7.10.3 normal alexvieth patch Jan 3, 2016
#11343 Unable to infer type when using DuplicateRecordFields Compiler (Type checker) 7.11 normal adamgundry new Jan 3, 2016
#11349 [TypeApplications] Create Proxy-free alternatives of functions in base Core Libraries 7.10.3 normal new Jan 4, 2016
#11350 Allow visible type application in patterns Compiler 8.1 normal new Jan 4, 2016
#11352 Allow applying type to label Compiler (Type checker) 7.11 normal new Jan 4, 2016
#11385 Unify named wildcards in different type applications Compiler (Type checker) 8.1 normal new Jan 8, 2016
#11387 Typecasting using type application syntax Compiler normal new Jan 9, 2016
#11393 Ability to define INLINE pragma for all instances of a given typeclass Compiler 8.1 normal new Jan 9, 2016
#11398 Type application for operator sections Compiler 7.10.3 normal new Jan 10, 2016
#11403 Provide a way to make fast in-calls into Haskell Runtime System 7.10.3 normal new Jan 11, 2016
#11439 Request for comments: Allow duplicate type signatures Compiler 7.10.3 normal new Jan 15, 2016
#11441 RFC: Inline intermediate languages (Core, STG, Cmm, even StrictCore) Compiler 7.10.3 normal new Jan 16, 2016
#11461 Allow pattern synonyms to be bundled with type classes? Compiler 7.10.3 normal new Jan 19, 2016
#11469 GHCi should get LANGUAGE extensions/defaulting from the module whose full top-level scope is visible GHCi 7.11 normal new Jan 21, 2016
#11470 Support changing cross compiler target at runtime Compiler 7.10.3 normal new Jan 21, 2016
#11482 Turn -fdefer-typed-holes on by default Compiler 7.10.3 normal new Jan 23, 2016
#11483 Ghci should TAB-complete keywords, not only identifiers GHCi 7.10.3 normal Geraldus new Jan 23, 2016
#11534 Allow class associated types to reference functional dependencies Compiler (Type checker) 7.10.3 normal new Feb 3, 2016
#11565 Restore code to handle '-fmax-worker-args' flag Compiler 7.10.3 normal new Feb 9, 2016
#11593 Template Haskell: Add a way to get names that are neither capturable nor capturing. Template Haskell 7.10.3 normal new Feb 17, 2016
#11620 RFC: Type-class type signatures (:: Constraint) Compiler 8.1 normal new Feb 21, 2016
#11636 Promoting newtype destructor Compiler normal new Feb 24, 2016
#11638 referring to the existential type from a GADT pattern match with a type application Compiler (Type checker) 8.1 normal new Feb 24, 2016
#11652 Cyclical dependencies aren't reported in pure functions Compiler 7.10.2 normal new Feb 27, 2016
#11658 Type synonym with context in pattern synonym Compiler 8.1 normal new Feb 28, 2016
#11671 Allow labels starting with uppercase with OverloadedLabels Compiler (Parser) 8.0.1-rc1 normal new Mar 4, 2016
#11682 :main doesn't use a bound thread Compiler 7.10.3 normal new Mar 6, 2016
#11693 Add `When` type family Core Libraries 8.1 normal new Mar 10, 2016
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