Issues · Glasgow Haskell Compiler / GHC · GitLab

Make declarations in signatures "weakly bound" until they are used

#10723 · opened Aug 01, 2015 by Edward Z. Yang 0 Plow Trac import backpack feature request package system
- CLOSED
- 6
updated Jul 07, 2019
Add e.g. "-N<=4" in addition to the fixed "-N4" and variable "-N" RTS options

#10728 · opened Aug 02, 2015 by rrnewton 8.0.1 5 Pnormal RTS Trac import feature request newcomer
- CLOSED
- 19
updated Jul 07, 2019
Improving the error message for type variable ambiguity

#10733 · opened Aug 04, 2015 by Rufflewind 8.0.1 5 Pnormal Trac import feature request
- CLOSED
- 4
updated Jul 07, 2019
Make Exception datatypes into newtypes

#10738 · opened Aug 05, 2015 by Ryan Scott 8.0.1 5 Pnormal Trac import core libraries feature request
- CLOSED
- 4
updated Jul 07, 2019
add flag to dump module and package dependencies

#10741 · opened Aug 05, 2015 by elaforge 5 Pnormal Trac import feature request
- 1
updated Jul 07, 2019
Allow oneShot to work with unboxed types

#10744 · opened Aug 06, 2015 by takano-akio 8.0.1 5 Pnormal Trac import feature request runtime perf
- CLOSED
- 16
updated Jul 07, 2019
Print which warning-flag controls/enabled an emitted warning

#10752 · opened Aug 07, 2015 by Herbert Valerio Riedel 8.0.1 5 Pnormal Trac import feature request
- CLOSED
- 15
updated Jul 07, 2019
Allow users to indicate inaccessible patterns

#10756 · opened Aug 07, 2015 by edsko@edsko.net 5 Pnormal Trac import feature request
- 15
updated Jul 07, 2019
Add Control.Monad.IO.Class from transformers to base

#10773 · opened Aug 15, 2015 by Ryan Scott 8.0.1 7 Phigh Trac import core libraries feature request
- CLOSED
- 3
updated Jul 07, 2019
Enable PolyKinds in GHC.Generics

#10775 · opened Aug 15, 2015 by Ryan Scott 8.0.1 5 Pnormal Trac import core libraries feature request
- CLOSED
- 10
updated Jul 07, 2019
DataKinds promotion of String -> Symbol and Natural -> Nat

#10776 · opened Aug 16, 2015 by htebalaka 5 DataKinds Pnormal Trac import feature request typechecker
- 1
- 6
updated Oct 28, 2020
Notify user when a kind mismatch holds up a type family reduction

#10789 · opened Aug 24, 2015 by Richard Eisenberg 5 Pnormal Trac import feature request
- 18
updated Jan 23, 2020
Add a --disable-large-memory-space configure option

#10791 · opened Aug 24, 2015 by erikd 8.0.1 5 Pnormal Trac import feature request
- CLOSED
- 6
updated Jul 07, 2019
Extension request: "where" clauses in type signatures

#10794 · opened Aug 25, 2015 by danso 0 Plow Trac import feature request typechecker
- 7
updated Jul 07, 2019
Signatures with only types should not be included in unit keys

#10798 · opened Aug 27, 2015 by Edward Z. Yang ⊥ 5 Pnormal Trac import backpack feature request package system
- CLOSED
- 1
updated Jul 07, 2019
New SignatureSections extension

#10803 · opened Aug 28, 2015 by Herbert Valerio Riedel 5 Pnormal Trac import bug feature request
- 18
updated Jan 23, 2020
Rules conditional on strictess properties

#10804 · opened Aug 28, 2015 by Joachim Breitner 3 Plow Trac import feature request
- 1
updated Jul 07, 2019
Add prefetch{Small}{Mutable}Array[0..3]#

#10809 · opened Aug 29, 2015 by Edward Kmett 5 Pnormal RTS Trac import feature request runtime perf
- 1
updated Jul 07, 2019
Can't generate data decls deriving multiparam type classes with TH

#10819 · opened Sep 01, 2015 by spinda 8.0.1 5 Pnormal TemplateHaskell Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
Provide a way to detect what extensions are enabled via TH

#10820 · opened Sep 01, 2015 by spinda 8.0.1 5 Pnormal TemplateHaskell Trac import feature request
- CLOSED
- 8
updated Jul 07, 2019
Add a flag to avoid generation of .hi, .o, .dyn_* files

#10821 · opened Sep 01, 2015 by spinda 5 Pnormal Trac import feature request
- CLOSED
- 5
updated Jul 07, 2019
Don't mark functions with annotations as dead

#10823 · opened Sep 01, 2015 by spinda 8.0.1 5 Pnormal Trac import feature request
- CLOSED
- 20
updated Jul 07, 2019
GHCi should support interpeting multiple packages/units with separate DynFlags

#10827 · opened Sep 02, 2015 by Edward Z. Yang 5 GHC API Pnormal Trac import backpack feature request
- 1
- 13
updated Jan 21, 2021
TH could do a better job of representing GADTs

#10828 · opened Sep 02, 2015 by spinda 8.0.1 5 Pnormal TemplateHaskell Trac import feature request
- CLOSED
- 19
updated Jul 07, 2019
Generalize injective type families

#10832 · opened Sep 03, 2015 by Jan Stolarek 5 Pnormal Trac import feature request injective type families typechecker
- 17
updated Dec 09, 2020
Use injective type families (decomposition) when dealing with givens

#10833 · opened Sep 03, 2015 by Jan Stolarek 5 Pnormal Trac import feature request injective type families typechecker
- 13
updated Mar 17, 2020
Run handler on STM retry

#10841 · opened Sep 04, 2015 by shlevy 5 Pnormal STM Trac import feature request
- 11
updated Jul 07, 2019
"Reactive" Template Haskell

#10842 · opened Sep 04, 2015 by MikeIzbicki 5 Pnormal Trac import feature request
- 7
updated Jul 07, 2019
Allow do blocks without dollar signs as arguments

#10843 · opened Sep 05, 2015 by agibiansky 8.6.1 5 Pnormal Trac import feature request ghc proposal parser
- CLOSED
- 46
updated Jul 07, 2019
:info should print minimal definition

#10847 · opened Sep 06, 2015 by Ömer Sinan Ağacan 8.0.1 0 GHCi Plow Trac import feature request newcomer
- CLOSED
- 5
updated Jul 07, 2019
GHC/GHCi should optionally print errors in reversed order

#10848 · opened Sep 06, 2015 by Ömer Sinan Ağacan 8.0.1 0 GHCi Plow Trac import feature request newcomer
- CLOSED
- 5
updated Jul 07, 2019
Poly-kinded Const

#10865 · opened Sep 10, 2015 by Vladislav Zavialov 5 Pnormal Trac import core libraries feature request
- CLOSED
- 5
updated Jul 07, 2019
Make GHC generics capable of handling unboxed types

#10868 · opened Sep 11, 2015 by Ryan Scott 8.0.1 5 Pnormal Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
Option to dump preprocessed source

#10869 · opened Sep 11, 2015 by phischu 8.8.1 3 Plow Trac import driver feature request newcomer
- CLOSED
- 12
updated Jul 07, 2019
Implement "fat" interface files which can be directly compiled without source

#10871 · opened Sep 12, 2015 by Edward Z. Yang 0 Plow Trac import backpack feature request
- 1
- 32
updated Oct 30, 2020
Implement `:type-at`, `:all-types`, `:loc-at` in GHCi

#10874 · opened Sep 13, 2015 by Herbert Valerio Riedel 8.0.1 5 GHCi Pnormal Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
Please export GhcMake.downsweep and make it return a partial module graph in case of errors

#10887 · opened Sep 16, 2015 by DanielG 5 Pnormal Trac import feature request
- CLOSED
- 5
- 1
updated Jul 07, 2019
Consistent error message suggestions for using language extensions

#10893 · opened Sep 18, 2015 by spl 5 Pnormal Trac import feature request
- 3
updated Jul 07, 2019
Add an option to infer CallStack implicit parameters

#10903 · opened Sep 21, 2015 by Eric Seidel 5 Pnormal Trac import feature request
- 0
updated Aug 09, 2019
`SPECIALIZE instance` could be better

#10906 · opened Sep 21, 2015 by Richard Eisenberg 5 Pnormal Trac import feature request
- 3
updated Jul 07, 2019
Support for out of the box static linking

#10912 · opened Sep 23, 2015 by crb002 5 Pnormal Trac import feature request package system
- 7
updated Jul 07, 2019
Statistical profiling support in the RTS

#10915 · opened Sep 26, 2015 by Ben Gamari 8.6.1 5 Pnormal Trac import debug information feature request profiling
- 12
updated Jan 22, 2021
GHC should inform where unknown identifiers originate whenever possible

#10925 · opened Oct 02, 2015 by hanshoglund 5 Pnormal Trac import feature request
- 1
updated Jul 07, 2019
Pattern synonyms and view pattern arguments

#10932 · opened Oct 05, 2015 by Joachim Breitner 5 Pnormal Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
REMOVED pragma

#10933 · opened Oct 05, 2015 by Richard Eisenberg 8.6.1 5 Pnormal Trac import feature request
- 1
- 4
updated Jul 07, 2019
Add class/context information to typed hole relevant bindings

#10954 · opened Oct 09, 2015 by David Feuer 8.0.1 5 Pnormal Trac import feature request typechecker typed holes
- CLOSED
- 1
updated Jul 07, 2019
Allow default keyboard behavior to be easily overriden

#10956 · opened Oct 10, 2015 by BalinKingOfMoria 5 I/O manager Pnormal RTS Trac import Windows feature request incorrect runtime result
- CLOSED
- 1
- 8
updated Jul 27, 2020
Beginner-targeted language extension

#10963 · opened Oct 13, 2015 by kanetw 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 22
updated Jul 07, 2019
Built in MIN_VERSION macro support

#10970 · opened Oct 15, 2015 by Edward Z. Yang 8.0.1 5 Pnormal Trac import feature request
- CLOSED
- 15
updated Jul 07, 2019
ExtendedDefaultRules defaults to [] for Foldable/Traversable

#10971 · opened Oct 15, 2015 by kanetw 8.0.1 5 Pnormal Trac import feature request
- CLOSED
- 7
updated Jul 07, 2019
Add a :binfo (beginner info) GHCi command

#10972 · opened Oct 15, 2015 by kanetw 5 Pnormal Trac import feature request
- 11
updated Jan 23, 2020
Applicative Comprehensions

#10976 · opened Oct 16, 2015 by davidar 8.0.1 5 ApplicativeDo Pnormal Trac import feature request
- 1
- 3
updated Feb 06, 2020
Anonymous type instances

#10978 · opened Oct 16, 2015 by benjamin.hodgson 5 Pnormal Trac import feature request typechecker
- 4
updated Jul 07, 2019
Warn about unused pattern variables in type families

#10982 · opened Oct 17, 2015 by Jan Stolarek 8.0.1 5 Pnormal Trac import feature request newcomer
- CLOSED
- 7
updated Aug 27, 2020
When a "non-exhaustive pattern"-error occurs, output the arguments (if possible)

#10985 · opened Oct 18, 2015 by Watercrystal 0 Plow Trac import debug information feature request
- 2
updated Jul 07, 2019
GHC should delete all temporary files it creates in /tmp

#10986 · opened Oct 19, 2015 by erikd 8.2.1 7 Phigh Trac import feature request
- 25
updated Jul 07, 2019
:ctags and :etags command can receive haskell source files as a parameter

#10989 · opened Oct 20, 2015 by hugomg 8.0.1 5 GHCi Pnormal Trac import documentation feature request newcomer
- CLOSED
- 3
updated Jul 07, 2019
Implement `-Wcompat`

#11000 · opened Oct 22, 2015 by Herbert Valerio Riedel 8.0.1 7 Phigh Trac import feature request
- CLOSED
- 3
updated Jul 07, 2019
Add type-indexed type representations (`TypeRep a`)

#11011 · opened Oct 24, 2015 by Ben Price 8.2.1 5 Pnormal Trac import Typeable feature request
- CLOSED
- 49
updated Jul 07, 2019
Support for unicode primes on identifiers.

#11012 · opened Oct 24, 2015 by ghartshaw 3 Plow Trac import feature request parser report impact
- 2
updated Jul 07, 2019
re-order GHC type errors for clarity

#11014 · opened Oct 24, 2015 by elaforge 5 Pnormal Trac import feature request
- 7
updated Jul 07, 2019
Make worker-wrapper transformation optional.

#11020 · opened Oct 26, 2015 by darchon 8.0.1 5 Pnormal Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
Add implicit call-stacks to partial functions in base

#11035 · opened Oct 29, 2015 by Eric Seidel 5 Pnormal Trac import feature request
- 17
updated Jul 07, 2019
Expose pop count primitives to cmm

#11037 · opened Oct 30, 2015 by Edward Kmett 8.0.1 5 Pnormal Trac import feature request
- CLOSED
- 3
updated Jul 07, 2019
Allow CallStacks to be hidden or cut

#11049 · opened Nov 01, 2015 by Joachim Breitner 8.0.1 5 Pnormal Trac import feature request
- CLOSED
- 8
updated Jul 07, 2019
Add a warning for pattern synonyms without signatures

#11053 · opened Nov 02, 2015 by Matthew Pickering 8.0.1 5 Pnormal Trac import feature request newcomer
- CLOSED
- 2
updated Jul 07, 2019
"Not in scope" errors should be more informative for qualified names.

#11071 · opened Nov 08, 2015 by mojojojo 8.0.1 5 Pnormal Trac import bug feature request
- CLOSED
- 15
updated Jul 07, 2019
Runtime linker doesn't search for DLLs referenced in import libraries on Windows

#11072 · opened Nov 08, 2015 by Ryan Scott 8.0.2 5 Pnormal Trac import bug feature request linking runtime crash
- CLOSED
- 20
updated Jul 07, 2019
Access to module renaming with reifyModule, in TemplateHaskell

#11078 · opened Nov 11, 2015 by cipher1024 8.0.1 5 Pnormal TemplateHaskell Trac import feature request
- 18
updated Jul 07, 2019
Add ability to access and generate haddock-style comments through template haskell

#11079 · opened Nov 11, 2015 by Edward Kmett 5 Pnormal TemplateHaskell Trac import feature request
- CLOSED
- 1
- 1
updated Jul 07, 2019
Open data kinds

#11080 · opened Nov 11, 2015 by dmcclean 3 Plow Trac import feature request
- 4
- 17
updated Jul 07, 2019
Implement Introspective Template Haskell

#11081 · opened Nov 13, 2015 by Richard Eisenberg ⊥ 5 Pnormal TemplateHaskell Trac import feature request
- 9
updated Jul 07, 2019
Cost-center heap profiler should be able to emit samples to eventlog

#11094 · opened Nov 15, 2015 by Ben Gamari 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 6
updated Jul 07, 2019
Builtin encoder/decoder should be used for Latin-1

#11096 · opened Nov 15, 2015 by Ben Gamari 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 4
updated Jul 07, 2019
Indicate missing associated type instances

#11115 · opened Nov 20, 2015 by rimmington 5 Pnormal Trac import feature request typechecker
- 2
updated Jul 07, 2019
Introduce `-XTemplateHaskellQuotes` pragma for subset of TH

#11121 · opened Nov 21, 2015 by Herbert Valerio Riedel 8.0.1 5 Pnormal Trac import feature request
- CLOSED
- 5
updated Jul 07, 2019
New `-fwarn-noncanonical-monad-instances` warning

#11128 · opened Nov 23, 2015 by Herbert Valerio Riedel 8.0.1 5 Pnormal Trac import feature request
- CLOSED
- 6
updated Jul 07, 2019
Limit frequency of idle GCs

#11134 · opened Nov 25, 2015 by dcturner 5 Pnormal RTS Trac import feature request runtime perf
- CLOSED
- 5
updated Sep 28, 2020
Feature request: Add index/read/write primops with byte offset for ByteArray#

#11143 · opened Nov 28, 2015 by Alexey Vagarenko 8.2.1 5 Pnormal Trac import feature request newcomer
- 17
updated Jul 07, 2019
New `-fwarn-noncanonical-monoid-instances` warning

#11150 · opened Dec 01, 2015 by Herbert Valerio Riedel 8.0.1 5 Pnormal Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
Remove the word "skolem" from user error messages

#11169 · opened Dec 06, 2015 by David Feuer 5 Pnormal Trac import feature request typechecker
- 1
- 2
updated Jul 07, 2019
Allow plugins to access "dead code"

#11179 · opened Dec 08, 2015 by Levent Erkök 5 Pnormal Trac import feature request
- 17
updated Jul 07, 2019
Give strong preference to type variable names in scope when reporting hole contexts

#11186 · opened Dec 09, 2015 by David Feuer 5 Pnormal Trac import feature request typechecker typed holes
- 8
updated Jul 07, 2019
provide `make uninstall`

#11191 · opened Dec 09, 2015 by f-a 3 Plow Trac import feature request
- 3
updated Jul 07, 2019
Frontend plugins

#11194 · opened Dec 11, 2015 by Edward Z. Yang 8.0.1 5 GHC API Pnormal Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
Missing instances for Identity and Const

#11210 · opened Dec 13, 2015 by duairc 8.0.1 5 Pnormal Trac import core libraries feature request
- CLOSED
- 6
updated Jul 07, 2019
Provide `-W(no-)` aliases for `-f(no-)warn` warning flags

#11218 · opened Dec 14, 2015 by Herbert Valerio Riedel 8.0.1 7 Phigh Trac import feature request
- CLOSED
- 3
updated Jul 07, 2019
Implement fine-grained `-Werror=...` facility

#11219 · opened Dec 14, 2015 by Herbert Valerio Riedel 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 10
updated Jul 07, 2019
Teach strictness analysis about `catch`-like operations

#11222 · opened Dec 14, 2015 by Ben Gamari 8.10.1 5 Pnormal Trac import exceptions feature request runtime perf
- CLOSED
- 9
updated Jul 07, 2019
splitLHsForAllTy not exported from HsTypes

#11229 · opened Dec 15, 2015 by literon 8.0.1 5 GHC API Pnormal Trac import feature request
- CLOSED
- 1
updated Jul 07, 2019
Flag to not expand type families

#11243 · opened Dec 17, 2015 by Eric Crockett 5 Pnormal Trac import feature request
- 18
updated Jan 23, 2020
:kind command hides the explicit kind

#11252 · opened Dec 18, 2015 by Icelandjack 8.0.1 5 GHCi Pnormal Trac import TypeInType feature request
- CLOSED
- 6
updated Jul 07, 2019
Extend ghc environment file features

#11268 · opened Dec 20, 2015 by Herbert Valerio Riedel 8.0.1 10 Phighest Trac import feature request
- CLOSED
- 3
updated Jul 07, 2019
"Unusable UNPACK pragma" warnings should be printed even without -O

#11270 · opened Dec 20, 2015 by Ömer Sinan Ağacan 5 Pnormal Trac import feature request
- 1
- 6
updated Jul 07, 2019
Way to run --make and -M simultaneously

#11281 · opened Dec 24, 2015 by Edward Z. Yang 5 Pnormal Trac import feature request newcomer
- 2
updated Jul 07, 2019
Split objects makes static linking really slow

#11285 · opened Dec 24, 2015 by Edward Z. Yang 7 Phigh Trac import bug compiler perf feature request linking
- CLOSED
- 8
updated Jul 07, 2019
ghc-pkg library

#11286 · opened Dec 25, 2015 by Edward Z. Yang 5 Pnormal Trac import feature request package system
- 0
updated Jul 07, 2019
Warn on shady data constructor export

#11309 · opened Dec 28, 2015 by David Feuer 5 Pnormal Trac import feature request
- 4
updated Jul 07, 2019
Add instance (Ix a, Read a, Read b) => Read (UArray a b)

#11335 · opened Jan 01, 2016 by rwbarton 8.8.1 5 Pnormal Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
Character kind

#11342 · opened Jan 03, 2016 by alexvieth 5 Pnormal Trac import feature request
- 2
- 1
- 12
updated Oct 27, 2020

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